AyeCode / invoicing

includes/payments/class-getpaid-payment-form-submission.php

Indentation +862 added lines, -862 removed lines

@@ -1,6 +1,6 @@ 
 <?php
 if ( ! defined( 'ABSPATH' ) ) {
-	exit;
+    exit;
 }
 
 /**
@@ -10,203 +10,203 @@ 
 class GetPaid_Payment_Form_Submission {
 
     /**
-	 * Submission ID
-	 *
-	 * @var string
-	 */
-	public $id = null;
-
-	/**
-	 * The raw submission data.
-	 *
-	 * @var array
-	 */
-	protected $data = null;
-
-	/**
-	 * Submission totals
-	 *
-	 * @var array
-	 */
-	protected $totals = array(
-
-		'subtotal'      => array(
-			'initial'   => 0,
-			'recurring' => 0,
-		),
-
-		'discount'      => array(
-			'initial'   => 0,
-			'recurring' => 0,
-		),
-
-		'fees'          => array(
-			'initial'   => 0,
-			'recurring' => 0,
-		),
-
-		'taxes'         => array(
-			'initial'   => 0,
-			'recurring' => 0,
-		),
-
-		'shipping'         => array(
-			'initial'   => 0,
-			'recurring' => 0,
-		),
-
-	);
-
-	/**
-	 * Sets the associated payment form.
-	 *
-	 * @var GetPaid_Payment_Form
-	 */
+     * Submission ID
+     *
+     * @var string
+     */
+    public $id = null;
+
+    /**
+     * The raw submission data.
+     *
+     * @var array
+     */
+    protected $data = null;
+
+    /**
+     * Submission totals
+     *
+     * @var array
+     */
+    protected $totals = array(
+
+        'subtotal'      => array(
+            'initial'   => 0,
+            'recurring' => 0,
+        ),
+
+        'discount'      => array(
+            'initial'   => 0,
+            'recurring' => 0,
+        ),
+
+        'fees'          => array(
+            'initial'   => 0,
+            'recurring' => 0,
+        ),
+
+        'taxes'         => array(
+            'initial'   => 0,
+            'recurring' => 0,
+        ),
+
+        'shipping'         => array(
+            'initial'   => 0,
+            'recurring' => 0,
+        ),
+
+    );
+
+    /**
+     * Sets the associated payment form.
+     *
+     * @var GetPaid_Payment_Form
+     */
     protected $payment_form = null;
 
     /**
-	 * The country for the submission.
-	 *
-	 * @var string
-	 */
-	public $country = null;
-
-    /**
-	 * The state for the submission.
-	 *
-	 * @since 1.0.19
-	 * @var string
-	 */
-	public $state = null;
-
-	/**
-	 * The invoice associated with the submission.
-	 *
-	 * @var WPInv_Invoice
-	 */
-	protected $invoice = null;
-
-	/**
-	 * The recurring item for the submission.
-	 *
-	 * @var int
-	 */
-	public $has_recurring = 0;
-
-	/**
-	 * An array of fees for the submission.
-	 *
-	 * @var array
-	 */
-	protected $fees = array();
-
-	/**
-	 * An array of discounts for the submission.
-	 *
-	 * @var array
-	 */
-	protected $discounts = array();
-
-	/**
-	 * An array of taxes for the submission.
-	 *
-	 * @var array
-	 */
-	protected $taxes = array();
-
-	/**
-	 * An array of items for the submission.
-	 *
-	 * @var GetPaid_Form_Item[]
-	 */
-	protected $items = array();
-
-	/**
-	 * The last error.
-	 *
-	 * @var string
-	 */
-	public $last_error = null;
-
-	/**
-	 * The last error code.
-	 *
-	 * @var string
-	 */
-	public $last_error_code = null;
-
-    /**
-	 * Class constructor.
-	 *
-	 */
-	public function __construct() {
-
-		// Set the state and country to the default state and country.
-		$this->country = wpinv_default_billing_country();
-		$this->state   = wpinv_get_default_state();
-
-		// Do we have an actual submission?
-		if ( isset( $_POST['getpaid_payment_form_submission'] ) ) {
-			$this->load_data( $_POST );
-		}
-
-	}
-
-	/**
-	 * Loads submission data.
-	 *
-	 * @param array $data
-	 */
-	public function load_data( $data ) {
-
-		// Remove slashes from the submitted data...
-		$data       = wp_kses_post_deep( wp_unslash( $data ) );
-
-		// Allow plugins to filter the data.
-		$data       = apply_filters( 'getpaid_submission_data', $data, $this );
-
-		// Cache it...
-		$this->data = $data;
-
-		// Then generate a unique id from the data.
-		$this->id   = md5( wp_json_encode( $data ) );
-
-		// Finally, process the submission.
-		try {
-
-			// Each process is passed an instance of the class (with reference)
-			// and should throw an Exception whenever it encounters one.
-			$processors = apply_filters(
-				'getpaid_payment_form_submission_processors',
-				array(
-					array( $this, 'process_payment_form' ),
-					array( $this, 'process_invoice' ),
-					array( $this, 'process_fees' ),
-					array( $this, 'process_items' ),
-					array( $this, 'process_discount' ),
-					array( $this, 'process_taxes' ),
-				),
-				$this		
-			);
-
-			foreach ( $processors as $processor ) {
-				call_user_func_array( $processor, array( &$this ) );
-			}
-
-		} catch( GetPaid_Payment_Exception $e ) {
-			$this->last_error      = $e->getMessage();
-			$this->last_error_code = $e->getErrorCode();
-		} catch ( Exception $e ) {
-			$this->last_error      = $e->getMessage();
-			$this->last_error_code = $e->getCode();
-		}
-
-		// Fired when we are done processing a submission.
-		do_action_ref_array( 'getpaid_process_submission', array( &$this ) );
-
-	}
-
-	/*
+     * The country for the submission.
+     *
+     * @var string
+     */
+    public $country = null;
+
+    /**
+     * The state for the submission.
+     *
+     * @since 1.0.19
+     * @var string
+     */
+    public $state = null;
+
+    /**
+     * The invoice associated with the submission.
+     *
+     * @var WPInv_Invoice
+     */
+    protected $invoice = null;
+
+    /**
+     * The recurring item for the submission.
+     *
+     * @var int
+     */
+    public $has_recurring = 0;
+
+    /**
+     * An array of fees for the submission.
+     *
+     * @var array
+     */
+    protected $fees = array();
+
+    /**
+     * An array of discounts for the submission.
+     *
+     * @var array
+     */
+    protected $discounts = array();
+
+    /**
+     * An array of taxes for the submission.
+     *
+     * @var array
+     */
+    protected $taxes = array();
+
+    /**
+     * An array of items for the submission.
+     *
+     * @var GetPaid_Form_Item[]
+     */
+    protected $items = array();
+
+    /**
+     * The last error.
+     *
+     * @var string
+     */
+    public $last_error = null;
+
+    /**
+     * The last error code.
+     *
+     * @var string
+     */
+    public $last_error_code = null;
+
+    /**
+     * Class constructor.
+     *
+     */
+    public function __construct() {
+
+        // Set the state and country to the default state and country.
+        $this->country = wpinv_default_billing_country();
+        $this->state   = wpinv_get_default_state();
+
+        // Do we have an actual submission?
+        if ( isset( $_POST['getpaid_payment_form_submission'] ) ) {
+            $this->load_data( $_POST );
+        }
+
+    }
+
+    /**
+     * Loads submission data.
+     *
+     * @param array $data
+     */
+    public function load_data( $data ) {
+
+        // Remove slashes from the submitted data...
+        $data       = wp_kses_post_deep( wp_unslash( $data ) );
+
+        // Allow plugins to filter the data.
+        $data       = apply_filters( 'getpaid_submission_data', $data, $this );
+
+        // Cache it...
+        $this->data = $data;
+
+        // Then generate a unique id from the data.
+        $this->id   = md5( wp_json_encode( $data ) );
+
+        // Finally, process the submission.
+        try {
+
+            // Each process is passed an instance of the class (with reference)
+            // and should throw an Exception whenever it encounters one.
+            $processors = apply_filters(
+                'getpaid_payment_form_submission_processors',
+                array(
+                    array( $this, 'process_payment_form' ),
+                    array( $this, 'process_invoice' ),
+                    array( $this, 'process_fees' ),
+                    array( $this, 'process_items' ),
+                    array( $this, 'process_discount' ),
+                    array( $this, 'process_taxes' ),
+                ),
+                $this		
+            );
+
+            foreach ( $processors as $processor ) {
+                call_user_func_array( $processor, array( &$this ) );
+            }
+
+        } catch( GetPaid_Payment_Exception $e ) {
+            $this->last_error      = $e->getMessage();
+            $this->last_error_code = $e->getErrorCode();
+        } catch ( Exception $e ) {
+            $this->last_error      = $e->getMessage();
+            $this->last_error_code = $e->getCode();
+        }
+
+        // Fired when we are done processing a submission.
+        do_action_ref_array( 'getpaid_process_submission', array( &$this ) );
+
+    }
+
+    /*
 	|--------------------------------------------------------------------------
 	| Payment Forms.
 	|--------------------------------------------------------------------------
@@ -215,39 +215,39 @@ 
 	| submission has an active payment form etc.
     */
 
-	/**
-	 * Prepares the submission's payment form.
-	 *
-	 * @since 1.0.19
-	 */
-	public function process_payment_form() {
+    /**
+     * Prepares the submission's payment form.
+     *
+     * @since 1.0.19
+     */
+    public function process_payment_form() {
 
-		// Every submission needs an active payment form.
-		if ( empty( $this->data['form_id'] ) ) {
-			throw new Exception( __( 'Missing payment form', 'invoicing' ) );
-		}
+        // Every submission needs an active payment form.
+        if ( empty( $this->data['form_id'] ) ) {
+            throw new Exception( __( 'Missing payment form', 'invoicing' ) );
+        }
 
-		// Fetch the payment form.
-		$this->payment_form = new GetPaid_Payment_Form( $this->data['form_id'] );
+        // Fetch the payment form.
+        $this->payment_form = new GetPaid_Payment_Form( $this->data['form_id'] );
 
-		if ( ! $this->payment_form->is_active() ) {
-			throw new Exception( __( 'Payment form not active', 'invoicing' ) );
-		}
+        if ( ! $this->payment_form->is_active() ) {
+            throw new Exception( __( 'Payment form not active', 'invoicing' ) );
+        }
 
-		do_action_ref_array( 'getpaid_submissions_process_payment_form', array( &$this ) );
-	}
+        do_action_ref_array( 'getpaid_submissions_process_payment_form', array( &$this ) );
+    }
 
     /**
-	 * Returns the payment form.
-	 *
-	 * @since 1.0.19
-	 * @return GetPaid_Payment_Form
-	 */
-	public function get_payment_form() {
-		return $this->payment_form;
-	}
+     * Returns the payment form.
+     *
+     * @since 1.0.19
+     * @return GetPaid_Payment_Form
+     */
+    public function get_payment_form() {
+        return $this->payment_form;
+    }
 
-	/*
+    /*
 	|--------------------------------------------------------------------------
 	| Invoices.
 	|--------------------------------------------------------------------------
@@ -256,84 +256,84 @@ 
 	| might be for an existing invoice.
 	*/
 
-	/**
-	 * Prepares the submission's invoice.
-	 *
-	 * @since 1.0.19
-	 */
-	public function process_invoice() {
+    /**
+     * Prepares the submission's invoice.
+     *
+     * @since 1.0.19
+     */
+    public function process_invoice() {
 
-		// Abort if there is no invoice.
-		if ( empty( $this->data['invoice_id'] ) ) {
-			return;
-		}
+        // Abort if there is no invoice.
+        if ( empty( $this->data['invoice_id'] ) ) {
+            return;
+        }
 
-		// If the submission is for an existing invoice, ensure that it exists
-		// and that it is not paid for.
-		$invoice = wpinv_get_invoice( $this->data['invoice_id'] );
+        // If the submission is for an existing invoice, ensure that it exists
+        // and that it is not paid for.
+        $invoice = wpinv_get_invoice( $this->data['invoice_id'] );
 
         if ( empty( $invoice ) ) {
-			throw new Exception( __( 'Invalid invoice', 'invoicing' ) );
-		}
+            throw new Exception( __( 'Invalid invoice', 'invoicing' ) );
+        }
 
-		if ( $invoice->is_paid() ) {
-			throw new Exception( __( 'This invoice is already paid for.', 'invoicing' ) );
-		}
+        if ( $invoice->is_paid() ) {
+            throw new Exception( __( 'This invoice is already paid for.', 'invoicing' ) );
+        }
 
-		$this->payment_form->invoice = $invoice;
-		if ( ! $this->payment_form->is_default() ) {
+        $this->payment_form->invoice = $invoice;
+        if ( ! $this->payment_form->is_default() ) {
 
-			$items    = array();
-			$item_ids = array();
+            $items    = array();
+            $item_ids = array();
 	
-			foreach ( $invoice->get_items() as $item ) {
-				if ( ! in_array( $item->get_id(), $item_ids ) ) {
-					$item_ids[] = $item->get_id();
-					$items[]    = $item;
-				}
-			}
+            foreach ( $invoice->get_items() as $item ) {
+                if ( ! in_array( $item->get_id(), $item_ids ) ) {
+                    $item_ids[] = $item->get_id();
+                    $items[]    = $item;
+                }
+            }
 	
-			foreach ( $this->payment_form->get_items() as $item ) {
-				if ( ! in_array( $item->get_id(), $item_ids ) ) {
-					$item_ids[] = $item->get_id();
-					$items[]    = $item;
-				}
-			}
+            foreach ( $this->payment_form->get_items() as $item ) {
+                if ( ! in_array( $item->get_id(), $item_ids ) ) {
+                    $item_ids[] = $item->get_id();
+                    $items[]    = $item;
+                }
+            }
 	
-			$this->payment_form->set_items( $items );
+            $this->payment_form->set_items( $items );
 	
-		} else {
-			$this->payment_form->set_items( $invoice->get_items() );
-		}
-
-		$this->country = $invoice->get_country();
-		$this->state   = $invoice->get_state();
-		$this->invoice = $invoice;
-
-		do_action_ref_array( 'getpaid_submissions_process_invoice', array( &$this ) );
-	}
-
-	/**
-	 * Returns the associated invoice.
-	 *
-	 * @since 1.0.19
-	 * @return WPInv_Invoice
-	 */
-	public function get_invoice() {
-		return $this->invoice;
-	}
-
-	/**
-	 * Checks whether there is an invoice associated with this submission.
-	 *
-	 * @since 1.0.19
-	 * @return bool
-	 */
-	public function has_invoice() {
-		return ! empty( $this->invoice );
-	}
-
-	/*
+        } else {
+            $this->payment_form->set_items( $invoice->get_items() );
+        }
+
+        $this->country = $invoice->get_country();
+        $this->state   = $invoice->get_state();
+        $this->invoice = $invoice;
+
+        do_action_ref_array( 'getpaid_submissions_process_invoice', array( &$this ) );
+    }
+
+    /**
+     * Returns the associated invoice.
+     *
+     * @since 1.0.19
+     * @return WPInv_Invoice
+     */
+    public function get_invoice() {
+        return $this->invoice;
+    }
+
+    /**
+     * Checks whether there is an invoice associated with this submission.
+     *
+     * @since 1.0.19
+     * @return bool
+     */
+    public function has_invoice() {
+        return ! empty( $this->invoice );
+    }
+
+    /*
 	|--------------------------------------------------------------------------
 	| Items.
 	|--------------------------------------------------------------------------
@@ -342,129 +342,129 @@ 
 	| recurring item. But can have an unlimited number of non-recurring items.
 	*/
 
-	/**
-	 * Prepares the submission's items.
-	 *
-	 * @since 1.0.19
-	 */
-	public function process_items() {
-
-		$processor = new GetPaid_Payment_Form_Submission_Items( $this );
-
-		foreach ( $processor->items as $item ) {
-			$this->add_item( $item );
-		}
-
-		do_action_ref_array( 'getpaid_submissions_process_items', array( &$this ) );
-	}
-
-	/**
-	 * Adds an item to the submission.
-	 *
-	 * @since 1.0.19
-	 * @param GetPaid_Form_Item $item
-	 */
-	public function add_item( $item ) {
-
-		// Make sure that it is available for purchase.
-		if ( ! $item->can_purchase() || isset( $this->items[ $item->get_id() ] ) ) {
-			return;
-		}
-
-		// Each submission can only contain one recurring item.
-		if ( $item->is_recurring() ) {
-			$this->has_recurring = $item->get_id();
-		}
-
-		// Update the items and totals.
-		$this->items[ $item->get_id() ]         = $item;
-		$this->totals['subtotal']['initial']   += $item->get_sub_total();
-		$this->totals['subtotal']['recurring'] += $item->get_recurring_sub_total();
-
-	}
-
-	/**
-	 * Removes a specific item.
-	 * 
-	 * You should not call this method after the discounts and taxes
-	 * have been calculated.
-	 *
-	 * @since 1.0.19
-	 */
-	public function remove_item( $item_id ) {
-
-		if ( isset( $this->items[ $item_id ] ) ) {
-			$this->totals['subtotal']['initial']   -= $this->items[ $item_id ]->get_sub_total();
-			$this->totals['subtotal']['recurring'] -= $this->items[ $item_id ]->get_recurring_sub_total();
-
-			if ( $this->items[ $item_id ]->is_recurring() ) {
-				$this->has_recurring = 0;
-			}
-
-			unset( $this->items[ $item_id ] );
-		}
-
-	}
-
-	/**
-	 * Returns the subtotal.
-	 *
-	 * @since 1.0.19
-	 */
-	public function get_subtotal() {
-
-		if ( wpinv_prices_include_tax() ) {
-			return $this->totals['subtotal']['initial'] - $this->totals['taxes']['initial'];
-		}
-
-		return $this->totals['subtotal']['initial'];
-	}
-
-	/**
-	 * Returns the recurring subtotal.
-	 *
-	 * @since 1.0.19
-	 */
-	public function get_recurring_subtotal() {
-
-		if ( wpinv_prices_include_tax() ) {
-			return $this->totals['subtotal']['recurring'] - $this->totals['taxes']['recurring'];
-		}
-
-		return $this->totals['subtotal']['recurring'];
-	}
-
-	/**
-	 * Returns all items.
-	 *
-	 * @since 1.0.19
-	 * @return GetPaid_Form_Item[]
-	 */
-	public function get_items() {
-		return $this->items;
-	}
-
-	/**
-	 * Checks if there's a single subscription group in the submission.
-	 *
-	 * @since 2.3.0
-	 * @return bool
-	 */
-	public function has_subscription_group() {
-		return $this->has_recurring && getpaid_should_group_subscriptions( $this ) && 1 == count( getpaid_get_subscription_groups( $this ) );
-	}
-
-	/**
-	 * Checks if there are multipe subscription groups in the submission.
-	 *
-	 * @since 2.3.0
-	 * @return bool
-	 */
-	public function has_multiple_subscription_groups() {
-		return $this->has_recurring && 1 < count( getpaid_get_subscription_groups( $this ) );
-	}
-
-	/*
+    /**
+     * Prepares the submission's items.
+     *
+     * @since 1.0.19
+     */
+    public function process_items() {
+
+        $processor = new GetPaid_Payment_Form_Submission_Items( $this );
+
+        foreach ( $processor->items as $item ) {
+            $this->add_item( $item );
+        }
+
+        do_action_ref_array( 'getpaid_submissions_process_items', array( &$this ) );
+    }
+
+    /**
+     * Adds an item to the submission.
+     *
+     * @since 1.0.19
+     * @param GetPaid_Form_Item $item
+     */
+    public function add_item( $item ) {
+
+        // Make sure that it is available for purchase.
+        if ( ! $item->can_purchase() || isset( $this->items[ $item->get_id() ] ) ) {
+            return;
+        }
+
+        // Each submission can only contain one recurring item.
+        if ( $item->is_recurring() ) {
+            $this->has_recurring = $item->get_id();
+        }
+
+        // Update the items and totals.
+        $this->items[ $item->get_id() ]         = $item;
+        $this->totals['subtotal']['initial']   += $item->get_sub_total();
+        $this->totals['subtotal']['recurring'] += $item->get_recurring_sub_total();
+
+    }
+
+    /**
+     * Removes a specific item.
+     * 
+     * You should not call this method after the discounts and taxes
+     * have been calculated.
+     *
+     * @since 1.0.19
+     */
+    public function remove_item( $item_id ) {
+
+        if ( isset( $this->items[ $item_id ] ) ) {
+            $this->totals['subtotal']['initial']   -= $this->items[ $item_id ]->get_sub_total();
+            $this->totals['subtotal']['recurring'] -= $this->items[ $item_id ]->get_recurring_sub_total();
+
+            if ( $this->items[ $item_id ]->is_recurring() ) {
+                $this->has_recurring = 0;
+            }
+
+            unset( $this->items[ $item_id ] );
+        }
+
+    }
+
+    /**
+     * Returns the subtotal.
+     *
+     * @since 1.0.19
+     */
+    public function get_subtotal() {
+
+        if ( wpinv_prices_include_tax() ) {
+            return $this->totals['subtotal']['initial'] - $this->totals['taxes']['initial'];
+        }
+
+        return $this->totals['subtotal']['initial'];
+    }
+
+    /**
+     * Returns the recurring subtotal.
+     *
+     * @since 1.0.19
+     */
+    public function get_recurring_subtotal() {
+
+        if ( wpinv_prices_include_tax() ) {
+            return $this->totals['subtotal']['recurring'] - $this->totals['taxes']['recurring'];
+        }
+
+        return $this->totals['subtotal']['recurring'];
+    }
+
+    /**
+     * Returns all items.
+     *
+     * @since 1.0.19
+     * @return GetPaid_Form_Item[]
+     */
+    public function get_items() {
+        return $this->items;
+    }
+
+    /**
+     * Checks if there's a single subscription group in the submission.
+     *
+     * @since 2.3.0
+     * @return bool
+     */
+    public function has_subscription_group() {
+        return $this->has_recurring && getpaid_should_group_subscriptions( $this ) && 1 == count( getpaid_get_subscription_groups( $this ) );
+    }
+
+    /**
+     * Checks if there are multipe subscription groups in the submission.
+     *
+     * @since 2.3.0
+     * @return bool
+     */
+    public function has_multiple_subscription_groups() {
+        return $this->has_recurring && 1 < count( getpaid_get_subscription_groups( $this ) );
+    }
+
+    /*
 	|--------------------------------------------------------------------------
 	| Taxes
 	|--------------------------------------------------------------------------
@@ -473,128 +473,128 @@ 
 	| or only one-time.
     */
 
-	/**
-	 * Prepares the submission's taxes.
-	 *
-	 * @since 1.0.19
-	 */
-	public function process_taxes() {
-
-		// Abort if we're not using taxes.
-		if ( ! $this->use_taxes() ) {
-			return;
-		}
-
-		// If a custom country && state has been passed in, use it to calculate taxes.
-		$country = $this->get_field( 'wpinv_country', 'billing' );
-		if ( ! empty( $country ) ) {
-			$this->country = $country;
-		}
-
-		$state = $this->get_field( 'wpinv_state', 'billing' );
-		if ( ! empty( $state ) ) {
-			$this->state = $state;
-		}
-
-		// Confirm if the provided country and the ip country are similar.
-		$address_confirmed = $this->get_field( 'confirm-address' );
-		if ( isset( $_POST['billing']['country'] ) && wpinv_should_validate_vat_number() && getpaid_get_ip_country() != $this->country && empty( $address_confirmed ) ) {
-			throw new Exception( __( 'The country of your current location must be the same as the country of your billing location or you must confirm the billing address is your home country.', 'invoicing' ) );
-		}
-
-		// Abort if the country is not taxable.
-		if ( ! wpinv_is_country_taxable( $this->country ) ) {
-			return;
-		}
-
-		$processor = new GetPaid_Payment_Form_Submission_Taxes( $this );
-
-		foreach ( $processor->taxes as $tax ) {
-			$this->add_tax( $tax );
-		}
-
-		do_action_ref_array( 'getpaid_submissions_process_taxes', array( &$this ) );
-	}
-
-	/**
-	 * Adds a tax to the submission.
-	 *
-	 * @param array $tax An array of tax details. name, initial_tax, and recurring_tax are required.
-	 * @since 1.0.19
-	 */
-	public function add_tax( $tax ) {
-
-		if ( wpinv_round_tax_per_tax_rate() ) {
-			$tax['initial_tax']   = wpinv_round_amount( $tax['initial_tax'] );
-			$tax['recurring_tax'] = wpinv_round_amount( $tax['recurring_tax'] );
-		}
-
-		$this->taxes[ $tax['name'] ]         = $tax;
-		$this->totals['taxes']['initial']   += wpinv_sanitize_amount( $tax['initial_tax'] );
-		$this->totals['taxes']['recurring'] += wpinv_sanitize_amount( $tax['recurring_tax'] );
-
-	}
-
-	/**
-	 * Removes a specific tax.
-	 *
-	 * @since 1.0.19
-	 */
-	public function remove_tax( $tax_name ) {
-
-		if ( isset( $this->taxes[ $tax_name ] ) ) {
-			$this->totals['taxes']['initial']   -= $this->taxes[ $tax_name ]['initial_tax'];
-			$this->totals['taxes']['recurring'] -= $this->taxes[ $tax_name ]['recurring_tax'];
-			unset( $this->taxes[ $tax_name ] );
-		}
-
-	}
-
-	/**
-	 * Whether or not we'll use taxes for the submission.
-	 *
-	 * @since 1.0.19
-	 */
-	public function use_taxes() {
-
-		$use_taxes = wpinv_use_taxes();
-
-		if ( $this->has_invoice() && ! $this->invoice->is_taxable() ) {
-			$use_taxes = false;
-		}
-
-		return apply_filters( 'getpaid_submission_use_taxes', $use_taxes, $this );
-
-	}
-
-	/**
-	 * Returns the tax.
-	 *
-	 * @since 1.0.19
-	 */
-	public function get_tax() {
-		return $this->totals['taxes']['initial'];
-	}
-
-	/**
-	 * Returns the recurring tax.
-	 *
-	 * @since 1.0.19
-	 */
-	public function get_recurring_tax() {
-		return $this->totals['taxes']['recurring'];
-	}
-
-	/**
-	 * Returns all taxes.
-	 *
-	 * @since 1.0.19
-	 */
-	public function get_taxes() {
-		return $this->taxes;
-	}
-
-	/*
+    /**
+     * Prepares the submission's taxes.
+     *
+     * @since 1.0.19
+     */
+    public function process_taxes() {
+
+        // Abort if we're not using taxes.
+        if ( ! $this->use_taxes() ) {
+            return;
+        }
+
+        // If a custom country && state has been passed in, use it to calculate taxes.
+        $country = $this->get_field( 'wpinv_country', 'billing' );
+        if ( ! empty( $country ) ) {
+            $this->country = $country;
+        }
+
+        $state = $this->get_field( 'wpinv_state', 'billing' );
+        if ( ! empty( $state ) ) {
+            $this->state = $state;
+        }
+
+        // Confirm if the provided country and the ip country are similar.
+        $address_confirmed = $this->get_field( 'confirm-address' );
+        if ( isset( $_POST['billing']['country'] ) && wpinv_should_validate_vat_number() && getpaid_get_ip_country() != $this->country && empty( $address_confirmed ) ) {
+            throw new Exception( __( 'The country of your current location must be the same as the country of your billing location or you must confirm the billing address is your home country.', 'invoicing' ) );
+        }
+
+        // Abort if the country is not taxable.
+        if ( ! wpinv_is_country_taxable( $this->country ) ) {
+            return;
+        }
+
+        $processor = new GetPaid_Payment_Form_Submission_Taxes( $this );
+
+        foreach ( $processor->taxes as $tax ) {
+            $this->add_tax( $tax );
+        }
+
+        do_action_ref_array( 'getpaid_submissions_process_taxes', array( &$this ) );
+    }
+
+    /**
+     * Adds a tax to the submission.
+     *
+     * @param array $tax An array of tax details. name, initial_tax, and recurring_tax are required.
+     * @since 1.0.19
+     */
+    public function add_tax( $tax ) {
+
+        if ( wpinv_round_tax_per_tax_rate() ) {
+            $tax['initial_tax']   = wpinv_round_amount( $tax['initial_tax'] );
+            $tax['recurring_tax'] = wpinv_round_amount( $tax['recurring_tax'] );
+        }
+
+        $this->taxes[ $tax['name'] ]         = $tax;
+        $this->totals['taxes']['initial']   += wpinv_sanitize_amount( $tax['initial_tax'] );
+        $this->totals['taxes']['recurring'] += wpinv_sanitize_amount( $tax['recurring_tax'] );
+
+    }
+
+    /**
+     * Removes a specific tax.
+     *
+     * @since 1.0.19
+     */
+    public function remove_tax( $tax_name ) {
+
+        if ( isset( $this->taxes[ $tax_name ] ) ) {
+            $this->totals['taxes']['initial']   -= $this->taxes[ $tax_name ]['initial_tax'];
+            $this->totals['taxes']['recurring'] -= $this->taxes[ $tax_name ]['recurring_tax'];
+            unset( $this->taxes[ $tax_name ] );
+        }
+
+    }
+
+    /**
+     * Whether or not we'll use taxes for the submission.
+     *
+     * @since 1.0.19
+     */
+    public function use_taxes() {
+
+        $use_taxes = wpinv_use_taxes();
+
+        if ( $this->has_invoice() && ! $this->invoice->is_taxable() ) {
+            $use_taxes = false;
+        }
+
+        return apply_filters( 'getpaid_submission_use_taxes', $use_taxes, $this );
+
+    }
+
+    /**
+     * Returns the tax.
+     *
+     * @since 1.0.19
+     */
+    public function get_tax() {
+        return $this->totals['taxes']['initial'];
+    }
+
+    /**
+     * Returns the recurring tax.
+     *
+     * @since 1.0.19
+     */
+    public function get_recurring_tax() {
+        return $this->totals['taxes']['recurring'];
+    }
+
+    /**
+     * Returns all taxes.
+     *
+     * @since 1.0.19
+     */
+    public function get_taxes() {
+        return $this->taxes;
+    }
+
+    /*
 	|--------------------------------------------------------------------------
 	| Discounts
 	|--------------------------------------------------------------------------
@@ -603,99 +603,99 @@ 
 	| or only one-time. They also do not have to come from a discount code.
     */
 
-	/**
-	 * Prepares the submission's discount.
-	 *
-	 * @since 1.0.19
-	 */
-	public function process_discount() {
-
-		$initial_total    = $this->get_subtotal() + $this->get_fee() + $this->get_tax();
-		$recurring_total  = $this->get_recurring_subtotal() + $this->get_recurring_fee() + $this->get_recurring_tax();
-		$processor        = new GetPaid_Payment_Form_Submission_Discount( $this, $initial_total, $recurring_total );
-
-		foreach ( $processor->discounts as $discount ) {
-			$this->add_discount( $discount );
-		}
-
-		do_action_ref_array( 'getpaid_submissions_process_discounts', array( &$this ) );
-	}
-
-	/**
-	 * Adds a discount to the submission.
-	 *
-	 * @param array $discount An array of discount details. name, initial_discount, and recurring_discount are required. Include discount_code if the discount is from a discount code.
-	 * @since 1.0.19
-	 */
-	public function add_discount( $discount ) {
-		$this->discounts[ $discount['name'] ]   = $discount;
-		$this->totals['discount']['initial']   += wpinv_sanitize_amount( $discount['initial_discount'] );
-		$this->totals['discount']['recurring'] += wpinv_sanitize_amount( $discount['recurring_discount'] );
-	}
-
-	/**
-	 * Removes a discount from the submission.
-	 *
-	 * @since 1.0.19
-	 */
-	public function remove_discount( $name ) {
-
-		if ( isset( $this->discounts[ $name ] ) ) {
-			$this->totals['discount']['initial']   -= $this->discounts[ $name ]['initial_discount'];
-			$this->totals['discount']['recurring'] -= $this->discounts[ $name ]['recurring_discount'];
-			unset( $this->discounts[ $name ] );
-		}
-
-	}
-
-	/**
-	 * Checks whether there is a discount code associated with this submission.
-	 *
-	 * @since 1.0.19
-	 * @return bool
-	 */
-	public function has_discount_code() {
-		return ! empty( $this->discounts['discount_code'] );
-	}
-
-	/**
-	 * Returns the discount code.
-	 *
-	 * @since 1.0.19
-	 * @return string
-	 */
-	public function get_discount_code() {
-		return $this->has_discount_code() ? $this->discounts['discount_code']['discount_code'] : '';
-	}
-
-	/**
-	 * Returns the discount.
-	 *
-	 * @since 1.0.19
-	 */
-	public function get_discount() {
-		return $this->totals['discount']['initial'];
-	}
-
-	/**
-	 * Returns the recurring discount.
-	 *
-	 * @since 1.0.19
-	 */
-	public function get_recurring_discount() {
-		return $this->totals['discount']['recurring'];
-	}
-
-	/**
-	 * Returns all discounts.
-	 *
-	 * @since 1.0.19
-	 */
-	public function get_discounts() {
-		return $this->discounts;
-	}
-
-	/*
+    /**
+     * Prepares the submission's discount.
+     *
+     * @since 1.0.19
+     */
+    public function process_discount() {
+
+        $initial_total    = $this->get_subtotal() + $this->get_fee() + $this->get_tax();
+        $recurring_total  = $this->get_recurring_subtotal() + $this->get_recurring_fee() + $this->get_recurring_tax();
+        $processor        = new GetPaid_Payment_Form_Submission_Discount( $this, $initial_total, $recurring_total );
+
+        foreach ( $processor->discounts as $discount ) {
+            $this->add_discount( $discount );
+        }
+
+        do_action_ref_array( 'getpaid_submissions_process_discounts', array( &$this ) );
+    }
+
+    /**
+     * Adds a discount to the submission.
+     *
+     * @param array $discount An array of discount details. name, initial_discount, and recurring_discount are required. Include discount_code if the discount is from a discount code.
+     * @since 1.0.19
+     */
+    public function add_discount( $discount ) {
+        $this->discounts[ $discount['name'] ]   = $discount;
+        $this->totals['discount']['initial']   += wpinv_sanitize_amount( $discount['initial_discount'] );
+        $this->totals['discount']['recurring'] += wpinv_sanitize_amount( $discount['recurring_discount'] );
+    }
+
+    /**
+     * Removes a discount from the submission.
+     *
+     * @since 1.0.19
+     */
+    public function remove_discount( $name ) {
+
+        if ( isset( $this->discounts[ $name ] ) ) {
+            $this->totals['discount']['initial']   -= $this->discounts[ $name ]['initial_discount'];
+            $this->totals['discount']['recurring'] -= $this->discounts[ $name ]['recurring_discount'];
+            unset( $this->discounts[ $name ] );
+        }
+
+    }
+
+    /**
+     * Checks whether there is a discount code associated with this submission.
+     *
+     * @since 1.0.19
+     * @return bool
+     */
+    public function has_discount_code() {
+        return ! empty( $this->discounts['discount_code'] );
+    }
+
+    /**
+     * Returns the discount code.
+     *
+     * @since 1.0.19
+     * @return string
+     */
+    public function get_discount_code() {
+        return $this->has_discount_code() ? $this->discounts['discount_code']['discount_code'] : '';
+    }
+
+    /**
+     * Returns the discount.
+     *
+     * @since 1.0.19
+     */
+    public function get_discount() {
+        return $this->totals['discount']['initial'];
+    }
+
+    /**
+     * Returns the recurring discount.
+     *
+     * @since 1.0.19
+     */
+    public function get_recurring_discount() {
+        return $this->totals['discount']['recurring'];
+    }
+
+    /**
+     * Returns all discounts.
+     *
+     * @since 1.0.19
+     */
+    public function get_discounts() {
+        return $this->discounts;
+    }
+
+    /*
 	|--------------------------------------------------------------------------
 	| Fees
 	|--------------------------------------------------------------------------
@@ -705,100 +705,100 @@ 
 	| fees.
     */
 
-	/**
-	 * Prepares the submission's fees.
-	 *
-	 * @since 1.0.19
-	 */
-	public function process_fees() {
-
-		$fees_processor = new GetPaid_Payment_Form_Submission_Fees( $this );
-
-		foreach ( $fees_processor->fees as $fee ) {
-			$this->add_fee( $fee );
-		}
-
-		do_action_ref_array( 'getpaid_submissions_process_fees', array( &$this ) );
-	}
-
-	/**
-	 * Adds a fee to the submission.
-	 *
-	 * @param array $fee An array of fee details. name, initial_fee, and recurring_fee are required.
-	 * @since 1.0.19
-	 */
-	public function add_fee( $fee ) {
-
-		if ( $fee['name'] == 'shipping' ) {
-			$this->totals['shipping']['initial']   += wpinv_sanitize_amount( $fee['initial_fee'] );
-			$this->totals['shipping']['recurring'] += wpinv_sanitize_amount( $fee['recurring_fee'] );
-			return;
-		}
-
-		$this->fees[ $fee['name'] ]         = $fee;
-		$this->totals['fees']['initial']   += wpinv_sanitize_amount( $fee['initial_fee'] );
-		$this->totals['fees']['recurring'] += wpinv_sanitize_amount( $fee['recurring_fee'] );
-
-	}
-
-	/**
-	 * Removes a fee from the submission.
-	 *
-	 * @since 1.0.19
-	 */
-	public function remove_fee( $name ) {
-
-		if ( isset( $this->fees[ $name ] ) ) {
-			$this->totals['fees']['initial']   -= $this->fees[ $name ]['initial_fee'];
-			$this->totals['fees']['recurring'] -= $this->fees[ $name ]['recurring_fee'];
-			unset( $this->fees[ $name ] );
-		}
-
-		if ( 'shipping' == $name ) {
-			$this->totals['shipping']['initial']   = 0;
-			$this->totals['shipping']['recurring'] = 0;
-		}
-
-	}
-
-	/**
-	 * Returns the fees.
-	 *
-	 * @since 1.0.19
-	 */
-	public function get_fee() {
-		return $this->totals['fees']['initial'];
-	}
-
-	/**
-	 * Returns the recurring fees.
-	 *
-	 * @since 1.0.19
-	 */
-	public function get_recurring_fee() {
-		return $this->totals['fees']['recurring'];
-	}
-
-	/**
-	 * Returns all fees.
-	 *
-	 * @since 1.0.19
-	 */
-	public function get_fees() {
-		return $this->fees;
-	}
-
-	/**
-	 * Checks if there are any fees for the form.
-	 *
-	 * @return bool
-	 * @since 1.0.19
-	 */
-	public function has_fees() {
-		return count( $this->fees ) !== 0;
-	}
-
-	/*
+    /**
+     * Prepares the submission's fees.
+     *
+     * @since 1.0.19
+     */
+    public function process_fees() {
+
+        $fees_processor = new GetPaid_Payment_Form_Submission_Fees( $this );
+
+        foreach ( $fees_processor->fees as $fee ) {
+            $this->add_fee( $fee );
+        }
+
+        do_action_ref_array( 'getpaid_submissions_process_fees', array( &$this ) );
+    }
+
+    /**
+     * Adds a fee to the submission.
+     *
+     * @param array $fee An array of fee details. name, initial_fee, and recurring_fee are required.
+     * @since 1.0.19
+     */
+    public function add_fee( $fee ) {
+
+        if ( $fee['name'] == 'shipping' ) {
+            $this->totals['shipping']['initial']   += wpinv_sanitize_amount( $fee['initial_fee'] );
+            $this->totals['shipping']['recurring'] += wpinv_sanitize_amount( $fee['recurring_fee'] );
+            return;
+        }
+
+        $this->fees[ $fee['name'] ]         = $fee;
+        $this->totals['fees']['initial']   += wpinv_sanitize_amount( $fee['initial_fee'] );
+        $this->totals['fees']['recurring'] += wpinv_sanitize_amount( $fee['recurring_fee'] );
+
+    }
+
+    /**
+     * Removes a fee from the submission.
+     *
+     * @since 1.0.19
+     */
+    public function remove_fee( $name ) {
+
+        if ( isset( $this->fees[ $name ] ) ) {
+            $this->totals['fees']['initial']   -= $this->fees[ $name ]['initial_fee'];
+            $this->totals['fees']['recurring'] -= $this->fees[ $name ]['recurring_fee'];
+            unset( $this->fees[ $name ] );
+        }
+
+        if ( 'shipping' == $name ) {
+            $this->totals['shipping']['initial']   = 0;
+            $this->totals['shipping']['recurring'] = 0;
+        }
+
+    }
+
+    /**
+     * Returns the fees.
+     *
+     * @since 1.0.19
+     */
+    public function get_fee() {
+        return $this->totals['fees']['initial'];
+    }
+
+    /**
+     * Returns the recurring fees.
+     *
+     * @since 1.0.19
+     */
+    public function get_recurring_fee() {
+        return $this->totals['fees']['recurring'];
+    }
+
+    /**
+     * Returns all fees.
+     *
+     * @since 1.0.19
+     */
+    public function get_fees() {
+        return $this->fees;
+    }
+
+    /**
+     * Checks if there are any fees for the form.
+     *
+     * @return bool
+     * @since 1.0.19
+     */
+    public function has_fees() {
+        return count( $this->fees ) !== 0;
+    }
+
+    /*
 	|--------------------------------------------------------------------------
 	| MISC
 	|--------------------------------------------------------------------------
@@ -806,147 +806,147 @@ 
 	| Extra submission functions.
     */
 
-	/**
-	 * Returns the shipping amount.
-	 *
-	 * @since 1.0.19
-	 */
-	public function get_shipping() {
-		return $this->totals['shipping']['initial'];
-	}
-
-	/**
-	 * Returns the recurring shipping.
-	 *
-	 * @since 1.0.19
-	 */
-	public function get_recurring_shipping() {
-		return $this->totals['shipping']['recurring'];
-	}
-
-	/**
-	 * Checks if there are any shipping fees for the form.
-	 *
-	 * @return bool
-	 * @since 1.0.19
-	 */
-	public function has_shipping() {
-		return apply_filters( 'getpaid_payment_form_has_shipping', false, $this );
-	}
-
-	/**
-	 * Checks if this is the initial fetch.
-	 *
-	 * @return bool
-	 * @since 1.0.19
-	 */
-	public function is_initial_fetch() {
-		return empty( $this->data['initial_state'] );
-	}
-
-	/**
-	 * Returns the total amount to collect for this submission.
-	 *
-	 * @since 1.0.19
-	 */
-	public function get_total() {
-		$total = $this->get_subtotal() + $this->get_fee() + $this->get_tax() + $this->get_shipping() - $this->get_discount();
-		return max( $total, 0 );
-	}
-
-	/**
-	 * Returns the recurring total amount to collect for this submission.
-	 *
-	 * @since 1.0.19
-	 */
-	public function get_recurring_total() {
-		$total = $this->get_recurring_subtotal() + $this->get_recurring_fee() + $this->get_recurring_tax() + $this->get_recurring_shipping() - $this->get_recurring_discount();
-		return max( $total, 0 );
-	}
-
-	/**
-	 * Whether payment details should be collected for this submission.
-	 *
-	 * @since 1.0.19
-	 */
-	public function should_collect_payment_details() {
-		$initial   = $this->get_total();
-		$recurring = $this->get_recurring_total();
-
-		if ( $this->has_recurring == 0 ) {
-			$recurring = 0;
-		}
-
-		$collect = $initial > 0 || $recurring > 0;
-		return apply_filters( 'getpaid_submission_should_collect_payment_details', $collect, $this  );
-	}
-
-	/**
-	 * Returns the billing email of the user.
-	 *
-	 * @since 1.0.19
-	 */
-	public function get_billing_email() {
-		return apply_filters( 'getpaid_get_submission_billing_email', $this->get_field( 'billing_email' ), $this  );
-	}
-
-	/**
-	 * Checks if the submitter has a billing email.
-	 *
-	 * @since 1.0.19
-	 */
-	public function has_billing_email() {
-		$billing_email = $this->get_billing_email();
-		return ! empty( $billing_email ) && is_email( $billing_email );
-	}
-
-	/**
-	 * Returns the appropriate currency for the submission.
-	 *
-	 * @since 1.0.19
-	 * @return string
-	 */
-	public function get_currency() {
-		return $this->has_invoice() ? $this->invoice->get_currency() : wpinv_get_currency();
-    }
-
-    /**
-	 * Returns the raw submission data.
-	 *
-	 * @since 1.0.19
-	 * @return array
-	 */
-	public function get_data() {
-		return $this->data;
-	}
-
-	/**
-	 * Returns a field from the submission data
-	 *
-	 * @param string $field
-	 * @since 1.0.19
-	 * @return mixed|null
-	 */
-	public function get_field( $field, $sub_array_key = null ) {
-		return getpaid_get_array_field( $this->data, $field, $sub_array_key );
-	}
-
-	/**
-	 * Checks if a required field is set.
-	 *
-	 * @since 1.0.19
-	 */
-	public function is_required_field_set( $field ) {
-		return empty( $field['required'] ) || ! empty( $this->data[ $field['id'] ] );
-	}
-
-	/**
-	 * Formats an amount
-	 *
-	 * @since 1.0.19
-	 */
-	public function format_amount( $amount ) {
-		return wpinv_price( $amount, $this->get_currency() );
-	}
+    /**
+     * Returns the shipping amount.
+     *
+     * @since 1.0.19
+     */
+    public function get_shipping() {
+        return $this->totals['shipping']['initial'];
+    }
+
+    /**
+     * Returns the recurring shipping.
+     *
+     * @since 1.0.19
+     */
+    public function get_recurring_shipping() {
+        return $this->totals['shipping']['recurring'];
+    }
+
+    /**
+     * Checks if there are any shipping fees for the form.
+     *
+     * @return bool
+     * @since 1.0.19
+     */
+    public function has_shipping() {
+        return apply_filters( 'getpaid_payment_form_has_shipping', false, $this );
+    }
+
+    /**
+     * Checks if this is the initial fetch.
+     *
+     * @return bool
+     * @since 1.0.19
+     */
+    public function is_initial_fetch() {
+        return empty( $this->data['initial_state'] );
+    }
+
+    /**
+     * Returns the total amount to collect for this submission.
+     *
+     * @since 1.0.19
+     */
+    public function get_total() {
+        $total = $this->get_subtotal() + $this->get_fee() + $this->get_tax() + $this->get_shipping() - $this->get_discount();
+        return max( $total, 0 );
+    }
+
+    /**
+     * Returns the recurring total amount to collect for this submission.
+     *
+     * @since 1.0.19
+     */
+    public function get_recurring_total() {
+        $total = $this->get_recurring_subtotal() + $this->get_recurring_fee() + $this->get_recurring_tax() + $this->get_recurring_shipping() - $this->get_recurring_discount();
+        return max( $total, 0 );
+    }
+
+    /**
+     * Whether payment details should be collected for this submission.
+     *
+     * @since 1.0.19
+     */
+    public function should_collect_payment_details() {
+        $initial   = $this->get_total();
+        $recurring = $this->get_recurring_total();
+
+        if ( $this->has_recurring == 0 ) {
+            $recurring = 0;
+        }
+
+        $collect = $initial > 0 || $recurring > 0;
+        return apply_filters( 'getpaid_submission_should_collect_payment_details', $collect, $this  );
+    }
+
+    /**
+     * Returns the billing email of the user.
+     *
+     * @since 1.0.19
+     */
+    public function get_billing_email() {
+        return apply_filters( 'getpaid_get_submission_billing_email', $this->get_field( 'billing_email' ), $this  );
+    }
+
+    /**
+     * Checks if the submitter has a billing email.
+     *
+     * @since 1.0.19
+     */
+    public function has_billing_email() {
+        $billing_email = $this->get_billing_email();
+        return ! empty( $billing_email ) && is_email( $billing_email );
+    }
+
+    /**
+     * Returns the appropriate currency for the submission.
+     *
+     * @since 1.0.19
+     * @return string
+     */
+    public function get_currency() {
+        return $this->has_invoice() ? $this->invoice->get_currency() : wpinv_get_currency();
+    }
+
+    /**
+     * Returns the raw submission data.
+     *
+     * @since 1.0.19
+     * @return array
+     */
+    public function get_data() {
+        return $this->data;
+    }
+
+    /**
+     * Returns a field from the submission data
+     *
+     * @param string $field
+     * @since 1.0.19
+     * @return mixed|null
+     */
+    public function get_field( $field, $sub_array_key = null ) {
+        return getpaid_get_array_field( $this->data, $field, $sub_array_key );
+    }
+
+    /**
+     * Checks if a required field is set.
+     *
+     * @since 1.0.19
+     */
+    public function is_required_field_set( $field ) {
+        return empty( $field['required'] ) || ! empty( $this->data[ $field['id'] ] );
+    }
+
+    /**
+     * Formats an amount
+     *
+     * @since 1.0.19
+     */
+    public function format_amount( $amount ) {
+        return wpinv_price( $amount, $this->get_currency() );
+    }
 
 }

includes/payments/class-getpaid-checkout.php

Indentation +301 added lines, -301 removed lines

@@ -12,184 +12,184 @@ 
  */
 class GetPaid_Checkout {
 
-	/**
-	 * @var GetPaid_Payment_Form_Submission
-	 */
-	protected $payment_form_submission;
-
-	/**
-	 * Class constructor.
-	 * 
-	 * @param GetPaid_Payment_Form_Submission $submission
-	 */
-	public function __construct( $submission ) {
-		$this->payment_form_submission = $submission;
-	}
-
-	/**
-	 * Processes the checkout.
-	 *
-	 */
-	public function process_checkout() {
-
-		// Validate the submission.
-		$this->validate_submission();
-
-		// Prepare the invoice.
-		$items      = $this->get_submission_items();
-		$invoice    = $this->get_submission_invoice();
-		$invoice    = $this->process_submission_invoice( $invoice, $items );
-		$prepared   = $this->prepare_submission_data_for_saving();
-
-		$this->prepare_billing_info( $invoice );
-
-		$shipping   = $this->prepare_shipping_info( $invoice );
-
-		// Save the invoice.
-		$invoice->set_is_viewed( true );
-		$invoice->recalculate_total();
+    /**
+     * @var GetPaid_Payment_Form_Submission
+     */
+    protected $payment_form_submission;
+
+    /**
+     * Class constructor.
+     * 
+     * @param GetPaid_Payment_Form_Submission $submission
+     */
+    public function __construct( $submission ) {
+        $this->payment_form_submission = $submission;
+    }
+
+    /**
+     * Processes the checkout.
+     *
+     */
+    public function process_checkout() {
+
+        // Validate the submission.
+        $this->validate_submission();
+
+        // Prepare the invoice.
+        $items      = $this->get_submission_items();
+        $invoice    = $this->get_submission_invoice();
+        $invoice    = $this->process_submission_invoice( $invoice, $items );
+        $prepared   = $this->prepare_submission_data_for_saving();
+
+        $this->prepare_billing_info( $invoice );
+
+        $shipping   = $this->prepare_shipping_info( $invoice );
+
+        // Save the invoice.
+        $invoice->set_is_viewed( true );
+        $invoice->recalculate_total();
         $invoice->save();
 
-		do_action( 'getpaid_checkout_invoice_updated', $invoice );
+        do_action( 'getpaid_checkout_invoice_updated', $invoice );
 
-		// Send to the gateway.
-		$this->post_process_submission( $invoice, $prepared, $shipping );
-	}
+        // Send to the gateway.
+        $this->post_process_submission( $invoice, $prepared, $shipping );
+    }
 
-	/**
-	 * Validates the submission.
-	 *
-	 */
-	protected function validate_submission() {
+    /**
+     * Validates the submission.
+     *
+     */
+    protected function validate_submission() {
 
-		$submission = $this->payment_form_submission;
-		$data       = $submission->get_data();
+        $submission = $this->payment_form_submission;
+        $data       = $submission->get_data();
 
-		// Do we have an error?
+        // Do we have an error?
         if ( ! empty( $submission->last_error ) ) {
-			wp_send_json_error( $submission->last_error );
+            wp_send_json_error( $submission->last_error );
         }
 
-		// We need a billing email.
+        // We need a billing email.
         if ( ! $submission->has_billing_email() ) {
             wp_send_json_error( __( 'Provide a valid billing email.', 'invoicing' ) );
-		}
+        }
 
-		// Non-recurring gateways should not be allowed to process recurring invoices.
-		if ( $submission->should_collect_payment_details() && $submission->has_recurring && ! wpinv_gateway_support_subscription( $data['wpi-gateway'] ) ) {
-			wp_send_json_error( __( 'The selected payment gateway does not support subscription payments.', 'invoicing' ) );
-		}
+        // Non-recurring gateways should not be allowed to process recurring invoices.
+        if ( $submission->should_collect_payment_details() && $submission->has_recurring && ! wpinv_gateway_support_subscription( $data['wpi-gateway'] ) ) {
+            wp_send_json_error( __( 'The selected payment gateway does not support subscription payments.', 'invoicing' ) );
+        }
 
-		// Ensure the gateway is active.
-		if ( $submission->should_collect_payment_details() && ! wpinv_is_gateway_active( $data['wpi-gateway'] ) ) {
-			wpinv_set_error( 'invalid_gateway', __( 'The selected payment gateway is not active', 'invoicing' ) );
-		}
+        // Ensure the gateway is active.
+        if ( $submission->should_collect_payment_details() && ! wpinv_is_gateway_active( $data['wpi-gateway'] ) ) {
+            wpinv_set_error( 'invalid_gateway', __( 'The selected payment gateway is not active', 'invoicing' ) );
+        }
 
-		// Clear any existing errors.
-		wpinv_clear_errors();
+        // Clear any existing errors.
+        wpinv_clear_errors();
 
-		// Allow themes and plugins to hook to errors
-		do_action( 'getpaid_checkout_error_checks', $submission );
+        // Allow themes and plugins to hook to errors
+        do_action( 'getpaid_checkout_error_checks', $submission );
 
-		// Do we have any errors?
+        // Do we have any errors?
         if ( wpinv_get_errors() ) {
             wp_send_json_error( getpaid_get_errors_html() );
-		}
+        }
 
-	}
+    }
 
-	/**
-	 * Retrieves submission items.
-	 *
-	 * @return GetPaid_Form_Item[]
-	 */
-	protected function get_submission_items() {
+    /**
+     * Retrieves submission items.
+     *
+     * @return GetPaid_Form_Item[]
+     */
+    protected function get_submission_items() {
 
-		$items = $this->payment_form_submission->get_items();
+        $items = $this->payment_form_submission->get_items();
 
         // Ensure that we have items.
         if ( empty( $items ) && ! $this->payment_form_submission->has_fees() ) {
             wp_send_json_error( __( 'Please provide at least one item or amount.', 'invoicing' ) );
-		}
-
-		return $items;
-	}
-
-	/**
-	 * Retrieves submission invoice.
-	 *
-	 * @return WPInv_Invoice
-	 */
-	protected function get_submission_invoice() {
-		$submission = $this->payment_form_submission;
-
-		if ( ! $submission->has_invoice() ) {
-			$invoice = new WPInv_Invoice();
-			$invoice->set_created_via( 'payment_form' );
-			return $invoice;
         }
 
-		$invoice = $submission->get_invoice();
+        return $items;
+    }
+
+    /**
+     * Retrieves submission invoice.
+     *
+     * @return WPInv_Invoice
+     */
+    protected function get_submission_invoice() {
+        $submission = $this->payment_form_submission;
+
+        if ( ! $submission->has_invoice() ) {
+            $invoice = new WPInv_Invoice();
+            $invoice->set_created_via( 'payment_form' );
+            return $invoice;
+        }
+
+        $invoice = $submission->get_invoice();
 
-		// Make sure that it is neither paid or refunded.
-		if ( $invoice->is_paid() || $invoice->is_refunded() ) {
-			wp_send_json_error( __( 'This invoice has already been paid for.', 'invoicing' ) );
-		}
+        // Make sure that it is neither paid or refunded.
+        if ( $invoice->is_paid() || $invoice->is_refunded() ) {
+            wp_send_json_error( __( 'This invoice has already been paid for.', 'invoicing' ) );
+        }
 
-		return $invoice;
-	}
+        return $invoice;
+    }
 
-	/**
-	 * Processes the submission invoice.
-	 *
-	 * @param WPInv_Invoice $invoice
-	 * @param GetPaid_Form_Item[] $items
-	 * @return WPInv_Invoice
-	 */
-	protected function process_submission_invoice( $invoice, $items ) {
+    /**
+     * Processes the submission invoice.
+     *
+     * @param WPInv_Invoice $invoice
+     * @param GetPaid_Form_Item[] $items
+     * @return WPInv_Invoice
+     */
+    protected function process_submission_invoice( $invoice, $items ) {
 
-		$submission = $this->payment_form_submission;
+        $submission = $this->payment_form_submission;
 
-		// Set-up the invoice details.
-		$invoice->set_email( sanitize_email( $submission->get_billing_email() ) );
-		$invoice->set_user_id( $this->get_submission_customer() );
-		$invoice->set_payment_form( absint( $submission->get_payment_form()->get_id() ) );
+        // Set-up the invoice details.
+        $invoice->set_email( sanitize_email( $submission->get_billing_email() ) );
+        $invoice->set_user_id( $this->get_submission_customer() );
+        $invoice->set_payment_form( absint( $submission->get_payment_form()->get_id() ) );
         $invoice->set_items( $items );
         $invoice->set_fees( $submission->get_fees() );
         $invoice->set_taxes( $submission->get_taxes() );
-		$invoice->set_discounts( $submission->get_discounts() );
-		$invoice->set_gateway( $submission->get_field( 'wpi-gateway' ) );
-		$invoice->set_currency( $submission->get_currency() );
+        $invoice->set_discounts( $submission->get_discounts() );
+        $invoice->set_gateway( $submission->get_field( 'wpi-gateway' ) );
+        $invoice->set_currency( $submission->get_currency() );
 
-		if ( $submission->has_shipping() ) {
-			$invoice->set_shipping( $submission->get_shipping() );
-		}
+        if ( $submission->has_shipping() ) {
+            $invoice->set_shipping( $submission->get_shipping() );
+        }
 
-		$address_confirmed = $submission->get_field( 'confirm-address' );
-		$invoice->set_address_confirmed( ! empty( $address_confirmed ) );
+        $address_confirmed = $submission->get_field( 'confirm-address' );
+        $invoice->set_address_confirmed( ! empty( $address_confirmed ) );
 
-		if ( $submission->has_discount_code() ) {
+        if ( $submission->has_discount_code() ) {
             $invoice->set_discount_code( $submission->get_discount_code() );
-		}
-
-		getpaid_maybe_add_default_address( $invoice );
-		return $invoice;
-	}
-
-	/**
-	 * Retrieves the submission's customer.
-	 *
-	 * @return int The customer id.
-	 */
-	protected function get_submission_customer() {
-		$submission = $this->payment_form_submission;
-
-		// If this is an existing invoice...
-		if ( $submission->has_invoice() ) {
-			return $submission->get_invoice()->get_user_id();
-		}
-
-		// (Maybe) create the user.
+        }
+
+        getpaid_maybe_add_default_address( $invoice );
+        return $invoice;
+    }
+
+    /**
+     * Retrieves the submission's customer.
+     *
+     * @return int The customer id.
+     */
+    protected function get_submission_customer() {
+        $submission = $this->payment_form_submission;
+
+        // If this is an existing invoice...
+        if ( $submission->has_invoice() ) {
+            return $submission->get_invoice()->get_user_id();
+        }
+
+        // (Maybe) create the user.
         $user = get_current_user_id();
 
         if ( empty( $user ) ) {
@@ -199,11 +199,11 @@ 
         if ( empty( $user ) ) {
             $user = wpinv_create_user( $submission->get_billing_email() );
 
-			// (Maybe) send new user notification.
-			$should_send_notification = wpinv_get_option( 'disable_new_user_emails' );
-			if ( ! empty( $user ) && is_numeric( $user ) && apply_filters( 'getpaid_send_new_user_notification', empty( $should_send_notification ), $user ) ) {
-				wp_send_new_user_notifications( $user, 'user' );
-			}
+            // (Maybe) send new user notification.
+            $should_send_notification = wpinv_get_option( 'disable_new_user_emails' );
+            if ( ! empty( $user ) && is_numeric( $user ) && apply_filters( 'getpaid_send_new_user_notification', empty( $should_send_notification ), $user ) ) {
+                wp_send_new_user_notifications( $user, 'user' );
+            }
 
         }
 
@@ -213,49 +213,49 @@ 
 
         if ( is_numeric( $user ) ) {
             return $user;
-		}
+        }
 
-		return $user->ID;
+        return $user->ID;
 
-	}
+    }
 
-	/**
+    /**
      * Prepares submission data for saving to the database.
      *
-	 * @return array
+     * @return array
      */
     public function prepare_submission_data_for_saving() {
 
-		$submission = $this->payment_form_submission;
+        $submission = $this->payment_form_submission;
 
-		// Prepared submission details.
+        // Prepared submission details.
         $prepared = array(
-			'all'  => array(),
-			'meta' => array(),
-		);
+            'all'  => array(),
+            'meta' => array(),
+        );
 
         // Raw submission details.
-		$data     = $submission->get_data();
+        $data     = $submission->get_data();
 
-		// Loop through the submitted details.
+        // Loop through the submitted details.
         foreach ( $submission->get_payment_form()->get_elements() as $field ) {
 
-			// Skip premade fields.
+            // Skip premade fields.
             if ( ! empty( $field['premade'] ) ) {
                 continue;
             }
 
-			// Ensure address is provided.
-			if ( $field['type'] == 'address' ) {
+            // Ensure address is provided.
+            if ( $field['type'] == 'address' ) {
                 $address_type = isset( $field['address_type'] ) && 'shipping' === $field['address_type'] ? 'shipping' : 'billing';
 
-				foreach ( $field['fields'] as $address_field ) {
+                foreach ( $field['fields'] as $address_field ) {
 
-					if ( ! empty( $address_field['visible'] ) && ! empty( $address_field['required'] ) && '' === trim( $_POST[ $address_type ][ $address_field['name'] ] ) ) {
-						wp_send_json_error( __( 'Please fill all required fields.', 'invoicing' ) );
-					}
+                    if ( ! empty( $address_field['visible'] ) && ! empty( $address_field['required'] ) && '' === trim( $_POST[ $address_type ][ $address_field['name'] ] ) ) {
+                        wp_send_json_error( __( 'Please fill all required fields.', 'invoicing' ) );
+                    }
 
-				}
+                }
 
             }
 
@@ -267,31 +267,31 @@ 
             // Handle misc fields.
             if ( isset( $data[ $field['id'] ] ) ) {
 
-				// Uploads.
-				if ( $field['type'] == 'file_upload' ) {
-					$max_file_num = empty( $field['max_file_num'] ) ? 1 : absint( $field['max_file_num'] );
+                // Uploads.
+                if ( $field['type'] == 'file_upload' ) {
+                    $max_file_num = empty( $field['max_file_num'] ) ? 1 : absint( $field['max_file_num'] );
 
-					if ( count( $data[ $field['id'] ] ) > $max_file_num ) {
-						wp_send_json_error( __( 'Maximum number of allowed files exceeded.', 'invoicing' ) );
-					}
+                    if ( count( $data[ $field['id'] ] ) > $max_file_num ) {
+                        wp_send_json_error( __( 'Maximum number of allowed files exceeded.', 'invoicing' ) );
+                    }
 
-					$value = array();
+                    $value = array();
 
-					foreach ( $data[ $field['id'] ] as $url => $name ) {
-						$value[] = sprintf(
-							'<a href="%s" target="_blank">%s</a>',
-							esc_url_raw( $url ),
-							esc_html( $name )
-						);
-					}
+                    foreach ( $data[ $field['id'] ] as $url => $name ) {
+                        $value[] = sprintf(
+                            '<a href="%s" target="_blank">%s</a>',
+                            esc_url_raw( $url ),
+                            esc_html( $name )
+                        );
+                    }
 
-					$value = implode( ' | ', $value );
+                    $value = implode( ' | ', $value );
 
-				} else if ( $field['type'] == 'checkbox' ) {
-					$value = isset( $data[ $field['id'] ] ) ? __( 'Yes', 'invoicing' ) : __( 'No', 'invoicing' );
-				} else {
-					$value = wp_kses_post( $data[ $field['id'] ] );
-				}
+                } else if ( $field['type'] == 'checkbox' ) {
+                    $value = isset( $data[ $field['id'] ] ) ? __( 'Yes', 'invoicing' ) : __( 'No', 'invoicing' );
+                } else {
+                    $value = wp_kses_post( $data[ $field['id'] ] );
+                }
 
                 $label = $field['id'];
 
@@ -299,190 +299,190 @@ 
                     $label = $field['label'];
                 }
 
-				if ( ! empty( $field['add_meta'] ) ) {
-					$prepared['meta'][ wpinv_clean( $label ) ] = wp_kses_post_deep( $value );
-				}
-				$prepared['all'][ wpinv_clean( $label ) ] = wp_kses_post_deep( $value );
+                if ( ! empty( $field['add_meta'] ) ) {
+                    $prepared['meta'][ wpinv_clean( $label ) ] = wp_kses_post_deep( $value );
+                }
+                $prepared['all'][ wpinv_clean( $label ) ] = wp_kses_post_deep( $value );
 
             }
 
-		}
+        }
 
-		return $prepared;
+        return $prepared;
 
-	}
+    }
 
-	/**
+    /**
      * Retrieves address details.
      *
-	 * @return array
-	 * @param WPInv_Invoice $invoice
-	 * @param string $type
+     * @return array
+     * @param WPInv_Invoice $invoice
+     * @param string $type
      */
     public function prepare_address_details( $invoice, $type = 'billing' ) {
 
-		$data     = $this->payment_form_submission->get_data();
-		$type     = sanitize_key( $type );
-		$address  = array();
-		$prepared = array();
+        $data     = $this->payment_form_submission->get_data();
+        $type     = sanitize_key( $type );
+        $address  = array();
+        $prepared = array();
 
-		if ( ! empty( $data[ $type ] ) ) {
-			$address = $data[ $type ];
-		}
+        if ( ! empty( $data[ $type ] ) ) {
+            $address = $data[ $type ];
+        }
 
-		// Clean address details.
-		foreach ( $address as $key => $value ) {
-			$key             = sanitize_key( $key );
-			$key             = str_replace( 'wpinv_', '', $key );
-			$value           = wpinv_clean( $value );
-			$prepared[ $key] = apply_filters( "getpaid_checkout_{$type}_address_$key", $value, $this->payment_form_submission, $invoice );
-		}
+        // Clean address details.
+        foreach ( $address as $key => $value ) {
+            $key             = sanitize_key( $key );
+            $key             = str_replace( 'wpinv_', '', $key );
+            $value           = wpinv_clean( $value );
+            $prepared[ $key] = apply_filters( "getpaid_checkout_{$type}_address_$key", $value, $this->payment_form_submission, $invoice );
+        }
 
-		// Filter address details.
-		$prepared = apply_filters( "getpaid_checkout_{$type}_address", $prepared, $this->payment_form_submission, $invoice );
+        // Filter address details.
+        $prepared = apply_filters( "getpaid_checkout_{$type}_address", $prepared, $this->payment_form_submission, $invoice );
 
-		// Remove non-whitelisted values.
-		return array_filter( $prepared, 'getpaid_is_address_field_whitelisted', ARRAY_FILTER_USE_KEY );
+        // Remove non-whitelisted values.
+        return array_filter( $prepared, 'getpaid_is_address_field_whitelisted', ARRAY_FILTER_USE_KEY );
 
-	}
+    }
 
-	/**
+    /**
      * Prepares the billing details.
      *
-	 * @return array
-	 * @param WPInv_Invoice $invoice
+     * @return array
+     * @param WPInv_Invoice $invoice
      */
     protected function prepare_billing_info( &$invoice ) {
 
-		$billing_address = $this->prepare_address_details( $invoice, 'billing' );
+        $billing_address = $this->prepare_address_details( $invoice, 'billing' );
 
-		// Update the invoice with the billing details.
-		$invoice->set_props( $billing_address );
+        // Update the invoice with the billing details.
+        $invoice->set_props( $billing_address );
 
-	}
+    }
 
-	/**
+    /**
      * Prepares the shipping details.
      *
-	 * @return array
-	 * @param WPInv_Invoice $invoice
+     * @return array
+     * @param WPInv_Invoice $invoice
      */
     protected function prepare_shipping_info( $invoice ) {
 
-		$data = $this->payment_form_submission->get_data();
+        $data = $this->payment_form_submission->get_data();
 
-		if ( empty( $data['same-shipping-address'] ) ) {
-			return $this->prepare_address_details( $invoice, 'shipping' );
-		}
+        if ( empty( $data['same-shipping-address'] ) ) {
+            return $this->prepare_address_details( $invoice, 'shipping' );
+        }
 
-		return $this->prepare_address_details( $invoice, 'billing' );
+        return $this->prepare_address_details( $invoice, 'billing' );
 
-	}
+    }
 
-	/**
-	 * Confirms the submission is valid and send users to the gateway.
-	 *
-	 * @param WPInv_Invoice $invoice
-	 * @param array $prepared_payment_form_data
-	 * @param array $shipping
-	 */
-	protected function post_process_submission( $invoice, $prepared_payment_form_data, $shipping ) {
+    /**
+     * Confirms the submission is valid and send users to the gateway.
+     *
+     * @param WPInv_Invoice $invoice
+     * @param array $prepared_payment_form_data
+     * @param array $shipping
+     */
+    protected function post_process_submission( $invoice, $prepared_payment_form_data, $shipping ) {
 
-		// Ensure the invoice exists.
+        // Ensure the invoice exists.
         if ( ! $invoice->exists() ) {
             wp_send_json_error( __( 'An error occured while saving your invoice. Please try again.', 'invoicing' ) );
         }
 
-		// Save payment form data.
-		$prepared_payment_form_data = apply_filters( 'getpaid_prepared_payment_form_data', $prepared_payment_form_data, $invoice );
+        // Save payment form data.
+        $prepared_payment_form_data = apply_filters( 'getpaid_prepared_payment_form_data', $prepared_payment_form_data, $invoice );
         delete_post_meta( $invoice->get_id(), 'payment_form_data' );
-		delete_post_meta( $invoice->get_id(), 'additional_meta_data' );
-		if ( ! empty( $prepared_payment_form_data ) ) {
+        delete_post_meta( $invoice->get_id(), 'additional_meta_data' );
+        if ( ! empty( $prepared_payment_form_data ) ) {
 
-			if ( ! empty( $prepared_payment_form_data['all'] ) ) {
-				update_post_meta( $invoice->get_id(), 'payment_form_data', $prepared_payment_form_data['all'] );
-			}
+            if ( ! empty( $prepared_payment_form_data['all'] ) ) {
+                update_post_meta( $invoice->get_id(), 'payment_form_data', $prepared_payment_form_data['all'] );
+            }
 
-			if ( ! empty( $prepared_payment_form_data['meta'] ) ) {
-				update_post_meta( $invoice->get_id(), 'additional_meta_data', $prepared_payment_form_data['meta'] );
-			}
+            if ( ! empty( $prepared_payment_form_data['meta'] ) ) {
+                update_post_meta( $invoice->get_id(), 'additional_meta_data', $prepared_payment_form_data['meta'] );
+            }
 
-		}
+        }
 
-		// Save payment form data.
-		$shipping = apply_filters( 'getpaid_checkout_shipping_details', $shipping, $this->payment_form_submission );
+        // Save payment form data.
+        $shipping = apply_filters( 'getpaid_checkout_shipping_details', $shipping, $this->payment_form_submission );
         if ( ! empty( $shipping ) ) {
             update_post_meta( $invoice->get_id(), 'shipping_address', $shipping );
-		}
+        }
 
-		// Backwards compatibility.
+        // Backwards compatibility.
         add_filter( 'wp_redirect', array( $this, 'send_redirect_response' ) );
 
-		$this->process_payment( $invoice );
+        $this->process_payment( $invoice );
 
         // If we are here, there was an error.
-		wpinv_send_back_to_checkout( $invoice );
+        wpinv_send_back_to_checkout( $invoice );
 
-	}
+    }
 
-	/**
-	 * Processes the actual payment.
-	 *
-	 * @param WPInv_Invoice $invoice
-	 */
-	protected function process_payment( $invoice ) {
+    /**
+     * Processes the actual payment.
+     *
+     * @param WPInv_Invoice $invoice
+     */
+    protected function process_payment( $invoice ) {
 
-		// Clear any checkout errors.
-		wpinv_clear_errors();
+        // Clear any checkout errors.
+        wpinv_clear_errors();
 
-		// No need to send free invoices to the gateway.
-		if ( $invoice->is_free() ) {
-			$this->process_free_payment( $invoice );
-		}
+        // No need to send free invoices to the gateway.
+        if ( $invoice->is_free() ) {
+            $this->process_free_payment( $invoice );
+        }
 
-		$submission = $this->payment_form_submission;
+        $submission = $this->payment_form_submission;
 
-		// Fires before sending to the gateway.
-		do_action( 'getpaid_checkout_before_gateway', $invoice, $submission );
+        // Fires before sending to the gateway.
+        do_action( 'getpaid_checkout_before_gateway', $invoice, $submission );
 
-		// Allow the sumission data to be modified before it is sent to the gateway.
-		$submission_data    = $submission->get_data();
-		$submission_gateway = apply_filters( 'getpaid_gateway_submission_gateway', $invoice->get_gateway(), $submission, $invoice );
-		$submission_data    = apply_filters( 'getpaid_gateway_submission_data', $submission_data, $submission, $invoice );
+        // Allow the sumission data to be modified before it is sent to the gateway.
+        $submission_data    = $submission->get_data();
+        $submission_gateway = apply_filters( 'getpaid_gateway_submission_gateway', $invoice->get_gateway(), $submission, $invoice );
+        $submission_data    = apply_filters( 'getpaid_gateway_submission_data', $submission_data, $submission, $invoice );
 
-		// Validate the currency.
-		if ( ! apply_filters( "getpaid_gateway_{$submission_gateway}_is_valid_for_currency", true, $invoice->get_currency() ) ) {
-			wpinv_set_error( 'invalid_currency', __( 'The chosen payment gateway does not support this currency', 'invoicing' ) );
-		}
+        // Validate the currency.
+        if ( ! apply_filters( "getpaid_gateway_{$submission_gateway}_is_valid_for_currency", true, $invoice->get_currency() ) ) {
+            wpinv_set_error( 'invalid_currency', __( 'The chosen payment gateway does not support this currency', 'invoicing' ) );
+        }
 
-		// Check to see if we have any errors.
-		if ( wpinv_get_errors() ) {
-			wpinv_send_back_to_checkout( $invoice );
-		}
+        // Check to see if we have any errors.
+        if ( wpinv_get_errors() ) {
+            wpinv_send_back_to_checkout( $invoice );
+        }
 
-		// Send info to the gateway for payment processing
-		do_action( "getpaid_gateway_$submission_gateway", $invoice, $submission_data, $submission );
+        // Send info to the gateway for payment processing
+        do_action( "getpaid_gateway_$submission_gateway", $invoice, $submission_data, $submission );
 
-		// Backwards compatibility.
-		wpinv_send_to_gateway( $submission_gateway, $invoice );
+        // Backwards compatibility.
+        wpinv_send_to_gateway( $submission_gateway, $invoice );
 
-	}
+    }
 
-	/**
-	 * Marks the invoice as paid in case the checkout is free.
-	 *
-	 * @param WPInv_Invoice $invoice
-	 */
-	protected function process_free_payment( $invoice ) {
+    /**
+     * Marks the invoice as paid in case the checkout is free.
+     *
+     * @param WPInv_Invoice $invoice
+     */
+    protected function process_free_payment( $invoice ) {
 
-		$invoice->set_gateway( 'none' );
-		$invoice->add_note( __( "This is a free invoice and won't be sent to the payment gateway", 'invoicing' ), false, false, true );
-		$invoice->mark_paid();
-		wpinv_send_to_success_page( array( 'invoice_key' => $invoice->get_key() ) );
+        $invoice->set_gateway( 'none' );
+        $invoice->add_note( __( "This is a free invoice and won't be sent to the payment gateway", 'invoicing' ), false, false, true );
+        $invoice->mark_paid();
+        wpinv_send_to_success_page( array( 'invoice_key' => $invoice->get_key() ) );
 
-	}
+    }
 
-	/**
+    /**
      * Sends a redrect response to payment details.
      *
      */

includes/data-stores/class-getpaid-invoice-data-store.php

Indentation +479 added lines, -479 removed lines

@@ -5,7 +5,7 @@ 
  *
  */
 if ( ! defined( 'ABSPATH' ) ) {
-	exit;
+    exit;
 }
 
 /**
@@ -15,544 +15,544 @@ 
  */
 class GetPaid_Invoice_Data_Store extends GetPaid_Data_Store_WP {
 
-	/**
-	 * Data stored in meta keys, but not considered "meta" for a discount.
-	 *
-	 * @since 1.0.19
-	 * @var array
-	 */
-	protected $internal_meta_keys = array(
-		'_wpinv_subscr_profile_id',
-		'_wpinv_subscription_id',
-		'_wpinv_taxes',
-		'_wpinv_fees',
-		'_wpinv_discounts',
-		'_wpinv_submission_id',
-		'_wpinv_payment_form',
-		'_wpinv_is_viewed',
-		'_wpinv_phone',
-		'_wpinv_company_id',
-		'wpinv_shipping',
-		'wpinv_email_cc',
-		'wpinv_template',
-		'wpinv_created_via'
-	);
-
-	/**
-	 * A map of meta keys to data props.
-	 *
-	 * @since 1.0.19
-	 *
-	 * @var array
-	 */
-	protected $meta_key_to_props = array(
-		'_wpinv_subscr_profile_id' => 'remote_subscription_id',
-		'_wpinv_subscription_id'   => 'subscription_id',
-		'_wpinv_taxes'             => 'taxes',
-		'_wpinv_fees'              => 'fees',
-		'_wpinv_discounts'         => 'discounts',
-		'_wpinv_submission_id'     => 'submission_id',
-		'_wpinv_payment_form'      => 'payment_form',
-		'_wpinv_is_viewed'         => 'is_viewed',
-		'wpinv_email_cc'           => 'email_cc',
-		'wpinv_template'           => 'template',
-		'wpinv_created_via'        => 'created_via',
-		'_wpinv_phone'             => 'phone',
-		'_wpinv_company_id'        => 'company_id',
-		'wpinv_shipping'           => 'shipping',
-	);
-
-	/**
-	 * A map of database fields to data props.
-	 *
-	 * @since 1.0.19
-	 *
-	 * @var array
-	 */
-	protected $database_fields_to_props = array(
-		'post_id'            => 'id',
-		'number'             => 'number',
-		'currency'           => 'currency',
-		'key'                => 'key',
-		'type'               => 'type',
-		'mode'               => 'mode',
-		'user_ip'            => 'user_ip',
-		'first_name'         => 'first_name',
-		'last_name'          => 'last_name',
-		'address'            => 'address',
-		'city'               => 'city',
-		'state'              => 'state',
-		'country'            => 'country',
-		'zip'                => 'zip',
-		'zip'                => 'zip',
-		'adddress_confirmed' => 'address_confirmed',
-		'gateway'            => 'gateway',
-		'transaction_id'     => 'transaction_id',
-		'currency'           => 'currency',
-		'subtotal'           => 'subtotal',
-		'tax'                => 'total_tax',
-		'fees_total'         => 'total_fees',
-		'discount'           => 'total_discount',
-		'total'              => 'total',
-		'discount_code'      => 'discount_code',
-		'disable_taxes'      => 'disable_taxes',
-		'due_date'           => 'due_date',
-		'completed_date'     => 'completed_date',
-		'company'            => 'company',
-		'vat_number'         => 'vat_number',
-		'vat_rate'           => 'vat_rate',
-	);
-
-	/*
+    /**
+     * Data stored in meta keys, but not considered "meta" for a discount.
+     *
+     * @since 1.0.19
+     * @var array
+     */
+    protected $internal_meta_keys = array(
+        '_wpinv_subscr_profile_id',
+        '_wpinv_subscription_id',
+        '_wpinv_taxes',
+        '_wpinv_fees',
+        '_wpinv_discounts',
+        '_wpinv_submission_id',
+        '_wpinv_payment_form',
+        '_wpinv_is_viewed',
+        '_wpinv_phone',
+        '_wpinv_company_id',
+        'wpinv_shipping',
+        'wpinv_email_cc',
+        'wpinv_template',
+        'wpinv_created_via'
+    );
+
+    /**
+     * A map of meta keys to data props.
+     *
+     * @since 1.0.19
+     *
+     * @var array
+     */
+    protected $meta_key_to_props = array(
+        '_wpinv_subscr_profile_id' => 'remote_subscription_id',
+        '_wpinv_subscription_id'   => 'subscription_id',
+        '_wpinv_taxes'             => 'taxes',
+        '_wpinv_fees'              => 'fees',
+        '_wpinv_discounts'         => 'discounts',
+        '_wpinv_submission_id'     => 'submission_id',
+        '_wpinv_payment_form'      => 'payment_form',
+        '_wpinv_is_viewed'         => 'is_viewed',
+        'wpinv_email_cc'           => 'email_cc',
+        'wpinv_template'           => 'template',
+        'wpinv_created_via'        => 'created_via',
+        '_wpinv_phone'             => 'phone',
+        '_wpinv_company_id'        => 'company_id',
+        'wpinv_shipping'           => 'shipping',
+    );
+
+    /**
+     * A map of database fields to data props.
+     *
+     * @since 1.0.19
+     *
+     * @var array
+     */
+    protected $database_fields_to_props = array(
+        'post_id'            => 'id',
+        'number'             => 'number',
+        'currency'           => 'currency',
+        'key'                => 'key',
+        'type'               => 'type',
+        'mode'               => 'mode',
+        'user_ip'            => 'user_ip',
+        'first_name'         => 'first_name',
+        'last_name'          => 'last_name',
+        'address'            => 'address',
+        'city'               => 'city',
+        'state'              => 'state',
+        'country'            => 'country',
+        'zip'                => 'zip',
+        'zip'                => 'zip',
+        'adddress_confirmed' => 'address_confirmed',
+        'gateway'            => 'gateway',
+        'transaction_id'     => 'transaction_id',
+        'currency'           => 'currency',
+        'subtotal'           => 'subtotal',
+        'tax'                => 'total_tax',
+        'fees_total'         => 'total_fees',
+        'discount'           => 'total_discount',
+        'total'              => 'total',
+        'discount_code'      => 'discount_code',
+        'disable_taxes'      => 'disable_taxes',
+        'due_date'           => 'due_date',
+        'completed_date'     => 'completed_date',
+        'company'            => 'company',
+        'vat_number'         => 'vat_number',
+        'vat_rate'           => 'vat_rate',
+    );
+
+    /*
 	|--------------------------------------------------------------------------
 	| CRUD Methods
 	|--------------------------------------------------------------------------
 	*/
 
-	/**
-	 * Method to create a new invoice in the database.
-	 *
-	 * @param WPInv_Invoice $invoice Invoice object.
-	 */
-	public function create( &$invoice ) {
-		$invoice->set_version( WPINV_VERSION );
-		$invoice->set_date_created( current_time('mysql') );
-
-		// Create a new post.
-		$id = wp_insert_post(
-			apply_filters(
-				'getpaid_new_invoice_data',
-				array(
-					'post_date'     => $invoice->get_date_created( 'edit' ),
-					'post_type'     => $invoice->get_post_type( 'edit' ),
-					'post_status'   => $this->get_post_status( $invoice ),
-					'ping_status'   => 'closed',
-					'post_author'   => $invoice->get_user_id( 'edit' ),
-					'post_title'    => $invoice->get_title( 'edit' ),
-					'post_excerpt'  => $invoice->get_description( 'edit' ),
-					'post_parent'   => $invoice->get_parent_id( 'edit' ),
-				)
-			),
-			true
-		);
-
-		if ( $id && ! is_wp_error( $id ) ) {
-
-			// Update the new id and regenerate a title.
-			$invoice->set_id( $id );
-
-			$invoice->maybe_set_number();
-
-			wp_update_post(
-				array(
-					'ID'         => $invoice->get_id(),
-					'post_title' => $invoice->get_number( 'edit' ),
-					'post_name'  => $invoice->get_path( 'edit' )
-				)
-			);
-
-			// Save special fields and items.
-			$this->save_special_fields( $invoice );
-			$this->save_items( $invoice );
-
-			// Update meta data.
-			$this->update_post_meta( $invoice );
-			$invoice->save_meta_data();
-
-			// Apply changes.
-			$invoice->apply_changes();
-			$this->clear_caches( $invoice );
-
-			// Fires after a new invoice is created.
-			do_action( 'getpaid_new_invoice', $invoice );
-			return true;
-		}
-
-		if ( is_wp_error( $id ) ) {
-			$invoice->last_error = $id->get_error_message();
-		}
-
-		return false;
-	}
-
-	/**
-	 * Method to read an invoice from the database.
-	 *
-	 * @param WPInv_Invoice $invoice Invoice object.
-	 *
-	 */
-	public function read( &$invoice ) {
-
-		$invoice->set_defaults();
-		$invoice_object = get_post( $invoice->get_id() );
-
-		if ( ! $invoice->get_id() || ! $invoice_object || ! getpaid_is_invoice_post_type( $invoice_object->post_type ) ) {
-			$invoice->last_error = __( 'Invalid invoice.', 'invoicing' );
-			$invoice->set_id( 0 );
-			return false;
-		}
-
-		$invoice->set_props(
-			array(
-				'date_created'  => 0 < $invoice_object->post_date ? $invoice_object->post_date : null,
-				'date_modified' => 0 < $invoice_object->post_modified ? $invoice_object->post_modified : null,
-				'status'        => $invoice_object->post_status,
-				'author'        => $invoice_object->post_author,
-				'description'   => $invoice_object->post_excerpt,
-				'parent_id'     => $invoice_object->post_parent,
-				'name'          => $invoice_object->post_title,
-				'path'          => $invoice_object->post_name,
-				'post_type'     => $invoice_object->post_type,
-			)
-		);
-
-		$invoice->set_type( $invoice_object->post_type );
-
-		$this->read_object_data( $invoice, $invoice_object );
-		$this->add_special_fields( $invoice );
-		$this->add_items( $invoice );
-		$invoice->read_meta_data();
-		$invoice->set_object_read( true );
-		do_action( 'getpaid_read_invoice', $invoice );
-
-	}
-
-	/**
-	 * Method to update an invoice in the database.
-	 *
-	 * @param WPInv_Invoice $invoice Invoice object.
-	 */
-	public function update( &$invoice ) {
-		$invoice->save_meta_data();
-		$invoice->set_version( WPINV_VERSION );
-
-		if ( null === $invoice->get_date_created( 'edit' ) ) {
-			$invoice->set_date_created(  current_time('mysql') );
-		}
-
-		// Ensure both the key and number are set.
-		$invoice->get_path();
-
-		// Grab the current status so we can compare.
-		$previous_status = get_post_status( $invoice->get_id() );
-
-		$changes = $invoice->get_changes();
-
-		// Only update the post when the post data changes.
-		if ( array_intersect( array( 'date_created', 'date_modified', 'status', 'name', 'author', 'description', 'parent_id', 'post_excerpt', 'path' ), array_keys( $changes ) ) ) {
-			$post_data = array(
-				'post_date'         => $invoice->get_date_created( 'edit' ),
-				'post_date_gmt'     => $invoice->get_date_created_gmt( 'edit' ),
-				'post_status'       => $invoice->get_status( 'edit' ),
-				'post_title'        => $invoice->get_name( 'edit' ),
-				'post_author'       => $invoice->get_user_id( 'edit' ),
-				'post_modified'     => $invoice->get_date_modified( 'edit' ),
-				'post_excerpt'      => $invoice->get_description( 'edit' ),
-				'post_parent'       => $invoice->get_parent_id( 'edit' ),
-				'post_name'         => $invoice->get_path( 'edit' ),
-				'post_type'         => $invoice->get_post_type( 'edit' ),
-			);
-
-			/**
-			 * When updating this object, to prevent infinite loops, use $wpdb
-			 * to update data, since wp_update_post spawns more calls to the
-			 * save_post action.
-			 *
-			 * This ensures hooks are fired by either WP itself (admin screen save),
-			 * or an update purely from CRUD.
-			 */
-			if ( doing_action( 'save_post' ) ) {
-				$GLOBALS['wpdb']->update( $GLOBALS['wpdb']->posts, $post_data, array( 'ID' => $invoice->get_id() ) );
-				clean_post_cache( $invoice->get_id() );
-			} else {
-				wp_update_post( array_merge( array( 'ID' => $invoice->get_id() ), $post_data ) );
-			}
-			$invoice->read_meta_data( true ); // Refresh internal meta data, in case things were hooked into `save_post` or another WP hook.
-		}
-
-		// Update meta data.
-		$this->update_post_meta( $invoice );
-
-		// Save special fields and items.
-		$this->save_special_fields( $invoice );
-		$this->save_items( $invoice );
-
-		// Apply the changes.
-		$invoice->apply_changes();
-
-		// Clear caches.
-		$this->clear_caches( $invoice );
-
-		// Fire a hook depending on the status - this should be considered a creation if it was previously draft status.
-		$new_status = $invoice->get_status( 'edit' );
-
-		if ( $new_status !== $previous_status && in_array( $previous_status, array( 'new', 'auto-draft', 'draft' ), true ) ) {
-			do_action( 'getpaid_new_invoice', $invoice );
-		} else {
-			do_action( 'getpaid_update_invoice', $invoice );
-		}
-
-	}
-
-	/*
+    /**
+     * Method to create a new invoice in the database.
+     *
+     * @param WPInv_Invoice $invoice Invoice object.
+     */
+    public function create( &$invoice ) {
+        $invoice->set_version( WPINV_VERSION );
+        $invoice->set_date_created( current_time('mysql') );
+
+        // Create a new post.
+        $id = wp_insert_post(
+            apply_filters(
+                'getpaid_new_invoice_data',
+                array(
+                    'post_date'     => $invoice->get_date_created( 'edit' ),
+                    'post_type'     => $invoice->get_post_type( 'edit' ),
+                    'post_status'   => $this->get_post_status( $invoice ),
+                    'ping_status'   => 'closed',
+                    'post_author'   => $invoice->get_user_id( 'edit' ),
+                    'post_title'    => $invoice->get_title( 'edit' ),
+                    'post_excerpt'  => $invoice->get_description( 'edit' ),
+                    'post_parent'   => $invoice->get_parent_id( 'edit' ),
+                )
+            ),
+            true
+        );
+
+        if ( $id && ! is_wp_error( $id ) ) {
+
+            // Update the new id and regenerate a title.
+            $invoice->set_id( $id );
+
+            $invoice->maybe_set_number();
+
+            wp_update_post(
+                array(
+                    'ID'         => $invoice->get_id(),
+                    'post_title' => $invoice->get_number( 'edit' ),
+                    'post_name'  => $invoice->get_path( 'edit' )
+                )
+            );
+
+            // Save special fields and items.
+            $this->save_special_fields( $invoice );
+            $this->save_items( $invoice );
+
+            // Update meta data.
+            $this->update_post_meta( $invoice );
+            $invoice->save_meta_data();
+
+            // Apply changes.
+            $invoice->apply_changes();
+            $this->clear_caches( $invoice );
+
+            // Fires after a new invoice is created.
+            do_action( 'getpaid_new_invoice', $invoice );
+            return true;
+        }
+
+        if ( is_wp_error( $id ) ) {
+            $invoice->last_error = $id->get_error_message();
+        }
+
+        return false;
+    }
+
+    /**
+     * Method to read an invoice from the database.
+     *
+     * @param WPInv_Invoice $invoice Invoice object.
+     *
+     */
+    public function read( &$invoice ) {
+
+        $invoice->set_defaults();
+        $invoice_object = get_post( $invoice->get_id() );
+
+        if ( ! $invoice->get_id() || ! $invoice_object || ! getpaid_is_invoice_post_type( $invoice_object->post_type ) ) {
+            $invoice->last_error = __( 'Invalid invoice.', 'invoicing' );
+            $invoice->set_id( 0 );
+            return false;
+        }
+
+        $invoice->set_props(
+            array(
+                'date_created'  => 0 < $invoice_object->post_date ? $invoice_object->post_date : null,
+                'date_modified' => 0 < $invoice_object->post_modified ? $invoice_object->post_modified : null,
+                'status'        => $invoice_object->post_status,
+                'author'        => $invoice_object->post_author,
+                'description'   => $invoice_object->post_excerpt,
+                'parent_id'     => $invoice_object->post_parent,
+                'name'          => $invoice_object->post_title,
+                'path'          => $invoice_object->post_name,
+                'post_type'     => $invoice_object->post_type,
+            )
+        );
+
+        $invoice->set_type( $invoice_object->post_type );
+
+        $this->read_object_data( $invoice, $invoice_object );
+        $this->add_special_fields( $invoice );
+        $this->add_items( $invoice );
+        $invoice->read_meta_data();
+        $invoice->set_object_read( true );
+        do_action( 'getpaid_read_invoice', $invoice );
+
+    }
+
+    /**
+     * Method to update an invoice in the database.
+     *
+     * @param WPInv_Invoice $invoice Invoice object.
+     */
+    public function update( &$invoice ) {
+        $invoice->save_meta_data();
+        $invoice->set_version( WPINV_VERSION );
+
+        if ( null === $invoice->get_date_created( 'edit' ) ) {
+            $invoice->set_date_created(  current_time('mysql') );
+        }
+
+        // Ensure both the key and number are set.
+        $invoice->get_path();
+
+        // Grab the current status so we can compare.
+        $previous_status = get_post_status( $invoice->get_id() );
+
+        $changes = $invoice->get_changes();
+
+        // Only update the post when the post data changes.
+        if ( array_intersect( array( 'date_created', 'date_modified', 'status', 'name', 'author', 'description', 'parent_id', 'post_excerpt', 'path' ), array_keys( $changes ) ) ) {
+            $post_data = array(
+                'post_date'         => $invoice->get_date_created( 'edit' ),
+                'post_date_gmt'     => $invoice->get_date_created_gmt( 'edit' ),
+                'post_status'       => $invoice->get_status( 'edit' ),
+                'post_title'        => $invoice->get_name( 'edit' ),
+                'post_author'       => $invoice->get_user_id( 'edit' ),
+                'post_modified'     => $invoice->get_date_modified( 'edit' ),
+                'post_excerpt'      => $invoice->get_description( 'edit' ),
+                'post_parent'       => $invoice->get_parent_id( 'edit' ),
+                'post_name'         => $invoice->get_path( 'edit' ),
+                'post_type'         => $invoice->get_post_type( 'edit' ),
+            );
+
+            /**
+             * When updating this object, to prevent infinite loops, use $wpdb
+             * to update data, since wp_update_post spawns more calls to the
+             * save_post action.
+             *
+             * This ensures hooks are fired by either WP itself (admin screen save),
+             * or an update purely from CRUD.
+             */
+            if ( doing_action( 'save_post' ) ) {
+                $GLOBALS['wpdb']->update( $GLOBALS['wpdb']->posts, $post_data, array( 'ID' => $invoice->get_id() ) );
+                clean_post_cache( $invoice->get_id() );
+            } else {
+                wp_update_post( array_merge( array( 'ID' => $invoice->get_id() ), $post_data ) );
+            }
+            $invoice->read_meta_data( true ); // Refresh internal meta data, in case things were hooked into `save_post` or another WP hook.
+        }
+
+        // Update meta data.
+        $this->update_post_meta( $invoice );
+
+        // Save special fields and items.
+        $this->save_special_fields( $invoice );
+        $this->save_items( $invoice );
+
+        // Apply the changes.
+        $invoice->apply_changes();
+
+        // Clear caches.
+        $this->clear_caches( $invoice );
+
+        // Fire a hook depending on the status - this should be considered a creation if it was previously draft status.
+        $new_status = $invoice->get_status( 'edit' );
+
+        if ( $new_status !== $previous_status && in_array( $previous_status, array( 'new', 'auto-draft', 'draft' ), true ) ) {
+            do_action( 'getpaid_new_invoice', $invoice );
+        } else {
+            do_action( 'getpaid_update_invoice', $invoice );
+        }
+
+    }
+
+    /*
 	|--------------------------------------------------------------------------
 	| Additional Methods
 	|--------------------------------------------------------------------------
 	*/
 
-	/**
+    /**
      * Retrieves special fields and adds to the invoice.
-	 *
-	 * @param WPInv_Invoice $invoice Invoice object.
+     *
+     * @param WPInv_Invoice $invoice Invoice object.
      */
     public function add_special_fields( &$invoice ) {
-		global $wpdb;
+        global $wpdb;
 
-		// Maybe retrieve from the cache.
-		$data   = wp_cache_get( $invoice->get_id(), 'getpaid_invoice_special_fields' );
+        // Maybe retrieve from the cache.
+        $data   = wp_cache_get( $invoice->get_id(), 'getpaid_invoice_special_fields' );
 
-		// If not found, retrieve from the db.
-		if ( false === $data ) {
-			$table =  $wpdb->prefix . 'getpaid_invoices';
+        // If not found, retrieve from the db.
+        if ( false === $data ) {
+            $table =  $wpdb->prefix . 'getpaid_invoices';
 
-			$data  = $wpdb->get_row(
-				$wpdb->prepare( "SELECT * FROM $table WHERE `post_id`=%d LIMIT 1", $invoice->get_id() ),
-				ARRAY_A
-			);
+            $data  = $wpdb->get_row(
+                $wpdb->prepare( "SELECT * FROM $table WHERE `post_id`=%d LIMIT 1", $invoice->get_id() ),
+                ARRAY_A
+            );
 
-			// Update the cache with our data
-			wp_cache_set( $invoice->get_id(), $data, 'getpaid_invoice_special_fields' );
+            // Update the cache with our data
+            wp_cache_set( $invoice->get_id(), $data, 'getpaid_invoice_special_fields' );
 
-		}
+        }
 
-		// Abort if the data does not exist.
-		if ( empty( $data ) ) {
-			$invoice->set_object_read( true );
-			$invoice->set_props( wpinv_get_user_address( $invoice->get_user_id() ) );
-			return;
-		}
+        // Abort if the data does not exist.
+        if ( empty( $data ) ) {
+            $invoice->set_object_read( true );
+            $invoice->set_props( wpinv_get_user_address( $invoice->get_user_id() ) );
+            return;
+        }
 
-		$props = array();
+        $props = array();
 
-		foreach ( $this->database_fields_to_props as $db_field => $prop ) {
+        foreach ( $this->database_fields_to_props as $db_field => $prop ) {
 			
-			if ( $db_field == 'post_id' ) {
-				continue;
-			}
-
-			$props[ $prop ] = $data[ $db_field ];
-		}
-
-		$invoice->set_props( $props );
-
-	}
-
-	/**
-	 * Gets a list of special fields that need updated based on change state
-	 * or if they are present in the database or not.
-	 *
-	 * @param  WPInv_Invoice $invoice       The Invoice object.
-	 * @return array                        A mapping of field keys => prop names, filtered by ones that should be updated.
-	 */
-	protected function get_special_fields_to_update( $invoice ) {
-		$fields_to_update = array();
-		$changed_props   = $invoice->get_changes();
-
-		// Props should be updated if they are a part of the $changed array or don't exist yet.
-		foreach ( $this->database_fields_to_props as $database_field => $prop ) {
-			if ( array_key_exists( $prop, $changed_props ) ) {
-				$fields_to_update[ $database_field ] = $prop;
-			}
-		}
-
-		return $fields_to_update;
-	}
-
-	/**
-	 * Helper method that updates all the database fields for an invoice based on it's settings in the WPInv_Invoice class.
-	 *
-	 * @param WPInv_Invoice $invoice WPInv_Invoice object.
-	 * @since 1.0.19
-	 */
-	protected function update_special_fields( &$invoice ) {
-		global $wpdb;
-
-		$updated_props    = array();
-		$fields_to_update = $this->get_special_fields_to_update( $invoice );
-
-		foreach ( $fields_to_update as $database_field => $prop ) {
-			$value = $invoice->{"get_$prop"}( 'edit' );
-			$value = is_string( $value ) ? wp_slash( $value ) : $value;
-			$value = is_bool( $value ) ? ( int ) $value : $value;
-			$updated_props[ $database_field ] = maybe_serialize( $value );
-		}
-
-		if ( ! empty( $updated_props ) ) {
-
-			$table = $wpdb->prefix . 'getpaid_invoices';
-			$wpdb->update( $table, $updated_props, array( 'post_id' => $invoice->get_id() ) );
-			wp_cache_delete( $invoice->get_id(), 'getpaid_invoice_special_fields' );
-			do_action( "getpaid_invoice_update_database_fields", $invoice, $updated_props );
-
-		}
-
-	}
-
-	/**
-	 * Helper method that inserts special fields to the database.
-	 *
-	 * @param WPInv_Invoice $invoice WPInv_Invoice object.
-	 * @since 1.0.19
-	 */
-	protected function insert_special_fields( &$invoice ) {
-		global $wpdb;
-
-		$updated_props   = array();
-
-		foreach ( $this->database_fields_to_props as $database_field => $prop ) {
-			$value = $invoice->{"get_$prop"}( 'edit' );
-			$value = is_string( $value ) ? wp_slash( $value ) : $value;
-			$value = is_bool( $value ) ? ( int ) $value : $value;
-			$updated_props[ $database_field ] = maybe_serialize( $value );
-		}
-
-		$table = $wpdb->prefix . 'getpaid_invoices';
-		$wpdb->insert( $table, $updated_props );
-		wp_cache_delete( $invoice->get_id(), 'getpaid_invoice_special_fields' );
-		do_action( "getpaid_invoice_insert_database_fields", $invoice, $updated_props );
-
-	}
-
-	/**
+            if ( $db_field == 'post_id' ) {
+                continue;
+            }
+
+            $props[ $prop ] = $data[ $db_field ];
+        }
+
+        $invoice->set_props( $props );
+
+    }
+
+    /**
+     * Gets a list of special fields that need updated based on change state
+     * or if they are present in the database or not.
+     *
+     * @param  WPInv_Invoice $invoice       The Invoice object.
+     * @return array                        A mapping of field keys => prop names, filtered by ones that should be updated.
+     */
+    protected function get_special_fields_to_update( $invoice ) {
+        $fields_to_update = array();
+        $changed_props   = $invoice->get_changes();
+
+        // Props should be updated if they are a part of the $changed array or don't exist yet.
+        foreach ( $this->database_fields_to_props as $database_field => $prop ) {
+            if ( array_key_exists( $prop, $changed_props ) ) {
+                $fields_to_update[ $database_field ] = $prop;
+            }
+        }
+
+        return $fields_to_update;
+    }
+
+    /**
+     * Helper method that updates all the database fields for an invoice based on it's settings in the WPInv_Invoice class.
+     *
+     * @param WPInv_Invoice $invoice WPInv_Invoice object.
+     * @since 1.0.19
+     */
+    protected function update_special_fields( &$invoice ) {
+        global $wpdb;
+
+        $updated_props    = array();
+        $fields_to_update = $this->get_special_fields_to_update( $invoice );
+
+        foreach ( $fields_to_update as $database_field => $prop ) {
+            $value = $invoice->{"get_$prop"}( 'edit' );
+            $value = is_string( $value ) ? wp_slash( $value ) : $value;
+            $value = is_bool( $value ) ? ( int ) $value : $value;
+            $updated_props[ $database_field ] = maybe_serialize( $value );
+        }
+
+        if ( ! empty( $updated_props ) ) {
+
+            $table = $wpdb->prefix . 'getpaid_invoices';
+            $wpdb->update( $table, $updated_props, array( 'post_id' => $invoice->get_id() ) );
+            wp_cache_delete( $invoice->get_id(), 'getpaid_invoice_special_fields' );
+            do_action( "getpaid_invoice_update_database_fields", $invoice, $updated_props );
+
+        }
+
+    }
+
+    /**
+     * Helper method that inserts special fields to the database.
+     *
+     * @param WPInv_Invoice $invoice WPInv_Invoice object.
+     * @since 1.0.19
+     */
+    protected function insert_special_fields( &$invoice ) {
+        global $wpdb;
+
+        $updated_props   = array();
+
+        foreach ( $this->database_fields_to_props as $database_field => $prop ) {
+            $value = $invoice->{"get_$prop"}( 'edit' );
+            $value = is_string( $value ) ? wp_slash( $value ) : $value;
+            $value = is_bool( $value ) ? ( int ) $value : $value;
+            $updated_props[ $database_field ] = maybe_serialize( $value );
+        }
+
+        $table = $wpdb->prefix . 'getpaid_invoices';
+        $wpdb->insert( $table, $updated_props );
+        wp_cache_delete( $invoice->get_id(), 'getpaid_invoice_special_fields' );
+        do_action( "getpaid_invoice_insert_database_fields", $invoice, $updated_props );
+
+    }
+
+    /**
      * Saves all special fields.
-	 *
-	 * @param WPInv_Invoice $invoice Invoice object.
+     *
+     * @param WPInv_Invoice $invoice Invoice object.
      */
     public function save_special_fields( & $invoice ) {
-		global $wpdb;
+        global $wpdb;
 
-		// The invoices table.
-		$table = $wpdb->prefix . 'getpaid_invoices';
-		$id    = (int) $invoice->get_id();
-		$invoice->maybe_set_key();
+        // The invoices table.
+        $table = $wpdb->prefix . 'getpaid_invoices';
+        $id    = (int) $invoice->get_id();
+        $invoice->maybe_set_key();
 
-		if ( $wpdb->get_var( "SELECT `post_id` FROM $table WHERE `post_id`= $id" ) ) {
+        if ( $wpdb->get_var( "SELECT `post_id` FROM $table WHERE `post_id`= $id" ) ) {
 
-			$this->update_special_fields( $invoice );
+            $this->update_special_fields( $invoice );
 
-		} else {
+        } else {
 
-			$this->insert_special_fields( $invoice );
+            $this->insert_special_fields( $invoice );
 
-		}
+        }
 
-	}
+    }
 
-	/**
+    /**
      * Set's up cart details.
-	 *
-	 * @param WPInv_Invoice $invoice Invoice object.
+     *
+     * @param WPInv_Invoice $invoice Invoice object.
      */
     public function add_items( &$invoice ) {
-		global $wpdb;
+        global $wpdb;
 
-		// Maybe retrieve from the cache.
-		$items = wp_cache_get( $invoice->get_id(), 'getpaid_invoice_cart_details' );
+        // Maybe retrieve from the cache.
+        $items = wp_cache_get( $invoice->get_id(), 'getpaid_invoice_cart_details' );
 
-		// If not found, retrieve from the db.
-		if ( false === $items ) {
-			$table =  $wpdb->prefix . 'getpaid_invoice_items';
+        // If not found, retrieve from the db.
+        if ( false === $items ) {
+            $table =  $wpdb->prefix . 'getpaid_invoice_items';
 
-			$items = $wpdb->get_results(
-				$wpdb->prepare( "SELECT * FROM $table WHERE `post_id`=%d", $invoice->get_id() )
-			);
+            $items = $wpdb->get_results(
+                $wpdb->prepare( "SELECT * FROM $table WHERE `post_id`=%d", $invoice->get_id() )
+            );
 
-			// Update the cache with our data
-			wp_cache_set( $invoice->get_id(), $items, 'getpaid_invoice_cart_details' );
+            // Update the cache with our data
+            wp_cache_set( $invoice->get_id(), $items, 'getpaid_invoice_cart_details' );
 
-		}
+        }
 
-		// Abort if no items found.
+        // Abort if no items found.
         if ( empty( $items ) ) {
             return;
-		}
-
-		$_items = array();
-		foreach ( $items as $item_data ) {
-			$item = new GetPaid_Form_Item( $item_data->item_id );
-
-			// Set item data.
-			$item->item_tax      = wpinv_sanitize_amount( $item_data->tax );
-			$item->item_discount = wpinv_sanitize_amount( $item_data->discount );
-			$item->set_name( $item_data->item_name );
-			$item->set_description( $item_data->item_description );
-			$item->set_price( $item_data->item_price );
-			$item->set_quantity( $item_data->quantity );
-			$item->set_item_meta( $item_data->meta );
-			$_items[] = $item;
-		}
-
-		$invoice->set_items( $_items );
-	}
-
-	/**
+        }
+
+        $_items = array();
+        foreach ( $items as $item_data ) {
+            $item = new GetPaid_Form_Item( $item_data->item_id );
+
+            // Set item data.
+            $item->item_tax      = wpinv_sanitize_amount( $item_data->tax );
+            $item->item_discount = wpinv_sanitize_amount( $item_data->discount );
+            $item->set_name( $item_data->item_name );
+            $item->set_description( $item_data->item_description );
+            $item->set_price( $item_data->item_price );
+            $item->set_quantity( $item_data->quantity );
+            $item->set_item_meta( $item_data->meta );
+            $_items[] = $item;
+        }
+
+        $invoice->set_items( $_items );
+    }
+
+    /**
      * Saves cart details.
-	 *
-	 * @param WPInv_Invoice $invoice Invoice object.
+     *
+     * @param WPInv_Invoice $invoice Invoice object.
      */
     public function save_items( $invoice ) {
 
-		// Delete previously existing items.
-		$this->delete_items( $invoice );
+        // Delete previously existing items.
+        $this->delete_items( $invoice );
 
-		$table   =  $GLOBALS['wpdb']->prefix . 'getpaid_invoice_items';
+        $table   =  $GLOBALS['wpdb']->prefix . 'getpaid_invoice_items';
 
-		foreach ( $invoice->get_cart_details() as $item_data ) {
-			$item_data = array_map( 'maybe_serialize', $item_data );
-			$GLOBALS['wpdb']->insert( $table, $item_data );
-		}
+        foreach ( $invoice->get_cart_details() as $item_data ) {
+            $item_data = array_map( 'maybe_serialize', $item_data );
+            $GLOBALS['wpdb']->insert( $table, $item_data );
+        }
 
-		wp_cache_delete( $invoice->get_id(), 'getpaid_invoice_cart_details' );
-		do_action( "getpaid_invoice_save_items", $invoice );
+        wp_cache_delete( $invoice->get_id(), 'getpaid_invoice_cart_details' );
+        do_action( "getpaid_invoice_save_items", $invoice );
 
-	}
+    }
 
-	/**
+    /**
      * Deletes an invoice's cart details from the database.
-	 *
-	 * @param WPInv_Invoice $invoice Invoice object.
+     *
+     * @param WPInv_Invoice $invoice Invoice object.
      */
     public function delete_items( $invoice ) {
-		$table =  $GLOBALS['wpdb']->prefix . 'getpaid_invoice_items';
-		return $GLOBALS['wpdb']->delete( $table, array( 'post_id' => $invoice->get_id() ) );
-	}
+        $table =  $GLOBALS['wpdb']->prefix . 'getpaid_invoice_items';
+        return $GLOBALS['wpdb']->delete( $table, array( 'post_id' => $invoice->get_id() ) );
+    }
 
-	/**
+    /**
      * Deletes an invoice's special fields from the database.
-	 *
-	 * @param WPInv_Invoice $invoice Invoice object.
+     *
+     * @param WPInv_Invoice $invoice Invoice object.
      */
     public function delete_special_fields( $invoice ) {
-		$table =  $GLOBALS['wpdb']->prefix . 'getpaid_invoices';
-		return $GLOBALS['wpdb']->delete( $table, array( 'post_id' => $invoice->get_id() ) );
-	}
+        $table =  $GLOBALS['wpdb']->prefix . 'getpaid_invoices';
+        return $GLOBALS['wpdb']->delete( $table, array( 'post_id' => $invoice->get_id() ) );
+    }
 	
-	/**
-	 * Get the status to save to the post object.
-	 *
-	 *
-	 * @since 1.0.19
-	 * @param  WPInv_Invoice $object GetPaid_Data object.
-	 * @return string
-	 */
-	protected function get_post_status( $object ) {
-		$object_status = $object->get_status( 'edit' );
-
-		if ( ! $object_status ) {
-			$object_status = $object->get_default_status();
-		}
-
-		return $object_status;
-	}
+    /**
+     * Get the status to save to the post object.
+     *
+     *
+     * @since 1.0.19
+     * @param  WPInv_Invoice $object GetPaid_Data object.
+     * @return string
+     */
+    protected function get_post_status( $object ) {
+        $object_status = $object->get_status( 'edit' );
+
+        if ( ! $object_status ) {
+            $object_status = $object->get_default_status();
+        }
+
+        return $object_status;
+    }
 
 }

includes/class-wpinv-invoice.php

Indentation +2579 added lines, -2579 removed lines

@@ -14,30 +14,30 @@ 
 class WPInv_Invoice extends GetPaid_Data {
 
     /**
-	 * Which data store to load.
-	 *
-	 * @var string
-	 */
+     * Which data store to load.
+     *
+     * @var string
+     */
     protected $data_store_name = 'invoice';
 
     /**
-	 * This is the name of this object type.
-	 *
-	 * @var string
-	 */
+     * This is the name of this object type.
+     *
+     * @var string
+     */
     protected $object_type = 'invoice';
 
     /**
-	 * Item Data array. This is the core item data exposed in APIs.
-	 *
-	 * @since 1.0.19
-	 * @var array
-	 */
-	protected $data = array(
-		'parent_id'            => 0,
-		'status'               => 'wpi-pending',
-		'version'              => '',
-		'date_created'         => null,
+     * Item Data array. This is the core item data exposed in APIs.
+     *
+     * @since 1.0.19
+     * @var array
+     */
+    protected $data = array(
+        'parent_id'            => 0,
+        'status'               => 'wpi-pending',
+        'version'              => '',
+        'date_created'         => null,
         'date_modified'        => null,
         'due_date'             => null,
         'completed_date'       => null,
@@ -60,17 +60,17 @@ 
         'state'                => null,
         'zip'                  => null,
         'company'              => null,
-		'company_id'           => null,
+        'company_id'           => null,
         'vat_number'           => null,
         'vat_rate'             => null,
         'address'              => null,
         'address_confirmed'    => false,
         'shipping'             => null,
-		'subtotal'             => 0,
+        'subtotal'             => 0,
         'total_discount'       => 0,
         'total_tax'            => 0,
-		'total_fees'           => 0,
-		'total'                => 0,
+        'total_fees'           => 0,
+        'total'                => 0,
         'fees'                 => array(),
         'discounts'            => array(),
         'taxes'                => array(),
@@ -82,22 +82,22 @@ 
         'transaction_id'       => '',
         'currency'             => '',
         'disable_taxes'        => false,
-		'subscription_id'      => null,
-		'remote_subscription_id' => null,
-		'is_viewed'            => false,
-		'email_cc'             => '',
-		'template'             => 'quantity', // hours, amount only
-		'created_via'          => null,
+        'subscription_id'      => null,
+        'remote_subscription_id' => null,
+        'is_viewed'            => false,
+        'email_cc'             => '',
+        'template'             => 'quantity', // hours, amount only
+        'created_via'          => null,
     );
 
     /**
-	 * Stores meta in cache for future reads.
-	 *
-	 * A group must be set to to enable caching.
-	 *
-	 * @var string
-	 */
-	protected $cache_group = 'getpaid_invoices';
+     * Stores meta in cache for future reads.
+     *
+     * A group must be set to to enable caching.
+     *
+     * @var string
+     */
+    protected $cache_group = 'getpaid_invoices';
 
     /**
      * Stores a reference to the original WP_Post object
@@ -111,111 +111,111 @@ 
      *
      * @var int
      */
-	protected $recurring_item = null;
+    protected $recurring_item = null;
 
-	/**
+    /**
      * Stores an array of item totals.
-	 *
-	 * e.g $totals['discount'] = array(
-	 * 		'initial'   => 10,
-	 * 		'recurring' => 10,
-	 * )
+     *
+     * e.g $totals['discount'] = array(
+     * 		'initial'   => 10,
+     * 		'recurring' => 10,
+     * )
      *
      * @var array
      */
-	protected $totals = array();
+    protected $totals = array();
 
-	/**
+    /**
      * Tax rate.
-	 *
+     *
      * @var float
      */
-	protected $tax_rate = 0;
+    protected $tax_rate = 0;
 
-	/**
-	 * Stores the status transition information.
-	 *
-	 * @since 1.0.19
-	 * @var bool|array
-	 */
-	protected $status_transition = false;
+    /**
+     * Stores the status transition information.
+     *
+     * @since 1.0.19
+     * @var bool|array
+     */
+    protected $status_transition = false;
 
     /**
-	 * Get the invoice if ID is passed, otherwise the invoice is new and empty.
-	 *
-	 * @param  int|string|object|WPInv_Invoice|WPInv_Legacy_Invoice|WP_Post $invoice Invoice id, key, transaction id, number or object to read.
-	 */
+     * Get the invoice if ID is passed, otherwise the invoice is new and empty.
+     *
+     * @param  int|string|object|WPInv_Invoice|WPInv_Legacy_Invoice|WP_Post $invoice Invoice id, key, transaction id, number or object to read.
+     */
     public function __construct( $invoice = 0 ) {
 
         parent::__construct( $invoice );
 
-		if ( ! empty( $invoice ) && is_numeric( $invoice ) && getpaid_is_invoice_post_type( get_post_type( (int) $invoice ) ) ) {
-			$this->set_id( (int) $invoice );
-		} elseif ( $invoice instanceof self ) {
-			$this->set_id( $invoice->get_id() );
-		} elseif ( ! empty( $invoice->ID ) ) {
-			$this->set_id( $invoice->ID );
-		} elseif ( is_array( $invoice ) ) {
-			$this->set_props( $invoice );
-
-			if ( isset( $invoice['ID'] ) ) {
-				$this->set_id( $invoice['ID'] );
-			}
-
-		} elseif ( is_string( $invoice ) && $invoice_id = self::get_invoice_id_by_field( $invoice, 'key' ) ) {
-			$this->set_id( $invoice_id );
-		} elseif ( is_string( $invoice ) && $invoice_id = self::get_invoice_id_by_field( $invoice, 'number' ) ) {
-			$this->set_id( $invoice_id );
-		} elseif ( is_string( $invoice ) && $invoice_id = self::get_invoice_id_by_field( $invoice, 'transaction_id' ) ) {
-			$this->set_id( $invoice_id );
-		} else {
-			$this->set_object_read( true );
-		}
+        if ( ! empty( $invoice ) && is_numeric( $invoice ) && getpaid_is_invoice_post_type( get_post_type( (int) $invoice ) ) ) {
+            $this->set_id( (int) $invoice );
+        } elseif ( $invoice instanceof self ) {
+            $this->set_id( $invoice->get_id() );
+        } elseif ( ! empty( $invoice->ID ) ) {
+            $this->set_id( $invoice->ID );
+        } elseif ( is_array( $invoice ) ) {
+            $this->set_props( $invoice );
+
+            if ( isset( $invoice['ID'] ) ) {
+                $this->set_id( $invoice['ID'] );
+            }
+
+        } elseif ( is_string( $invoice ) && $invoice_id = self::get_invoice_id_by_field( $invoice, 'key' ) ) {
+            $this->set_id( $invoice_id );
+        } elseif ( is_string( $invoice ) && $invoice_id = self::get_invoice_id_by_field( $invoice, 'number' ) ) {
+            $this->set_id( $invoice_id );
+        } elseif ( is_string( $invoice ) && $invoice_id = self::get_invoice_id_by_field( $invoice, 'transaction_id' ) ) {
+            $this->set_id( $invoice_id );
+        } else {
+            $this->set_object_read( true );
+        }
 
         // Load the datastore.
-		$this->data_store = GetPaid_Data_Store::load( $this->data_store_name );
+        $this->data_store = GetPaid_Data_Store::load( $this->data_store_name );
 
-		if ( $this->get_id() > 0 ) {
+        if ( $this->get_id() > 0 ) {
             $this->post = get_post( $this->get_id() );
             $this->ID   = $this->get_id();
-			$this->data_store->read( $this );
+            $this->data_store->read( $this );
         }
 
     }
 
     /**
-	 * Given an invoice key/number, it returns its id.
-	 *
-	 *
-	 * @static
-	 * @param string $value The invoice key or number
-	 * @param string $field Either key, transaction_id or number.
-	 * @since 1.0.15
-	 * @return int
-	 */
-	public static function get_invoice_id_by_field( $value, $field = 'key' ) {
+     * Given an invoice key/number, it returns its id.
+     *
+     *
+     * @static
+     * @param string $value The invoice key or number
+     * @param string $field Either key, transaction_id or number.
+     * @since 1.0.15
+     * @return int
+     */
+    public static function get_invoice_id_by_field( $value, $field = 'key' ) {
         global $wpdb;
 
-		// Trim the value.
-		$value = trim( $value );
+        // Trim the value.
+        $value = trim( $value );
 
-		if ( empty( $value ) ) {
-			return 0;
-		}
+        if ( empty( $value ) ) {
+            return 0;
+        }
 
         // Valid fields.
         $fields = array( 'key', 'number', 'transaction_id' );
 
-		// Ensure a field has been passed.
-		if ( empty( $field ) || ! in_array( $field, $fields ) ) {
-			return 0;
-		}
+        // Ensure a field has been passed.
+        if ( empty( $field ) || ! in_array( $field, $fields ) ) {
+            return 0;
+        }
 
-		// Maybe retrieve from the cache.
-		$invoice_id   = wp_cache_get( $value, "getpaid_invoice_{$field}s_to_invoice_ids" );
-		if ( false !== $invoice_id ) {
-			return $invoice_id;
-		}
+        // Maybe retrieve from the cache.
+        $invoice_id   = wp_cache_get( $value, "getpaid_invoice_{$field}s_to_invoice_ids" );
+        if ( false !== $invoice_id ) {
+            return $invoice_id;
+        }
 
         // Fetch from the db.
         $table       = $wpdb->prefix . 'getpaid_invoices';
@@ -223,10 +223,10 @@ 
             $wpdb->prepare( "SELECT `post_id` FROM $table WHERE `$field`=%s LIMIT 1", $value )
         );
 
-		// Update the cache with our data
-		wp_cache_set( $value, $invoice_id, "getpaid_invoice_{$field}s_to_invoice_ids" );
+        // Update the cache with our data
+        wp_cache_set( $value, $invoice_id, "getpaid_invoice_{$field}s_to_invoice_ids" );
 
-		return $invoice_id;
+        return $invoice_id;
     }
 
     /**
@@ -252,83 +252,83 @@ 
     */
 
     /**
-	 * Get parent invoice ID.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return int
-	 */
-	public function get_parent_id( $context = 'view' ) {
-		return (int) $this->get_prop( 'parent_id', $context );
+     * Get parent invoice ID.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return int
+     */
+    public function get_parent_id( $context = 'view' ) {
+        return (int) $this->get_prop( 'parent_id', $context );
     }
 
     /**
-	 * Get parent invoice.
-	 *
-	 * @since 1.0.19
-	 * @return WPInv_Invoice
-	 */
+     * Get parent invoice.
+     *
+     * @since 1.0.19
+     * @return WPInv_Invoice
+     */
     public function get_parent_payment() {
         return new WPInv_Invoice( $this->get_parent_id() );
     }
 
     /**
-	 * Alias for self::get_parent_payment().
-	 *
-	 * @since 1.0.19
-	 * @return WPInv_Invoice
-	 */
+     * Alias for self::get_parent_payment().
+     *
+     * @since 1.0.19
+     * @return WPInv_Invoice
+     */
     public function get_parent() {
         return $this->get_parent_payment();
     }
 
     /**
-	 * Get invoice status.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_status( $context = 'view' ) {
-		return $this->get_prop( 'status', $context );
-	}
+     * Get invoice status.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_status( $context = 'view' ) {
+        return $this->get_prop( 'status', $context );
+    }
 	
-	/**
-	 * Retrieves an array of possible invoice statuses.
-	 *
-	 * @since 1.0.19
-	 * @return array
-	 */
-	public function get_all_statuses() {
-		return wpinv_get_invoice_statuses( true, true, $this );
-    }
-
-    /**
-	 * Get invoice status nice name.
-	 *
-	 * @since 1.0.19
-	 * @return string
-	 */
+    /**
+     * Retrieves an array of possible invoice statuses.
+     *
+     * @since 1.0.19
+     * @return array
+     */
+    public function get_all_statuses() {
+        return wpinv_get_invoice_statuses( true, true, $this );
+    }
+
+    /**
+     * Get invoice status nice name.
+     *
+     * @since 1.0.19
+     * @return string
+     */
     public function get_status_nicename() {
-		$statuses = $this->get_all_statuses();
+        $statuses = $this->get_all_statuses();
 
         $status = isset( $statuses[ $this->get_status() ] ) ? $statuses[ $this->get_status() ] : $this->get_status();
 
         return apply_filters( 'wpinv_get_invoice_status_nicename', $status, $this );
     }
 
-	/**
-	 * Retrieves the invoice status class
-	 *
-	 * @since  1.0.19
-	 * @return string
-	 */
-	public function get_status_class() {
-		$statuses = getpaid_get_invoice_status_classes();
-		return isset( $statuses[ $this->get_status() ] ) ? $statuses[ $this->get_status() ] : 'badge-dark';
-	}
+    /**
+     * Retrieves the invoice status class
+     *
+     * @since  1.0.19
+     * @return string
+     */
+    public function get_status_class() {
+        $statuses = getpaid_get_invoice_status_classes();
+        return isset( $statuses[ $this->get_status() ] ) ? $statuses[ $this->get_status() ] : 'badge-dark';
+    }
 
-	/**
+    /**
      * Retrieves the invoice status label html
      *
      * @since  1.0.0
@@ -336,263 +336,263 @@ 
      */
     public function get_status_label_html() {
 
-		$status_label = sanitize_text_field( $this->get_status_nicename() );
-		$status       = sanitize_html_class( $this->get_status() );
-		$class        = esc_attr( $this->get_status_class() );
+        $status_label = sanitize_text_field( $this->get_status_nicename() );
+        $status       = sanitize_html_class( $this->get_status() );
+        $class        = esc_attr( $this->get_status_class() );
 
-		return "<span class='bsui'><span class='badge $class $status'>$status_label</span></span>";
-	}
+        return "<span class='bsui'><span class='badge $class $status'>$status_label</span></span>";
+    }
 
     /**
-	 * Get plugin version when the invoice was created.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_version( $context = 'view' ) {
-		return $this->get_prop( 'version', $context );
-	}
+     * Get plugin version when the invoice was created.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_version( $context = 'view' ) {
+        return $this->get_prop( 'version', $context );
+    }
 
-	/**
-	 * @deprecated
-	 */
-	public function get_invoice_date( $format = true ) {
-		$date      = getpaid_format_date( $this->get_date_completed() );
-		$date      = empty( $date ) ? $this->get_date_created() : $this->get_date_completed();
-		$formatted = getpaid_format_date( $date );
+    /**
+     * @deprecated
+     */
+    public function get_invoice_date( $format = true ) {
+        $date      = getpaid_format_date( $this->get_date_completed() );
+        $date      = empty( $date ) ? $this->get_date_created() : $this->get_date_completed();
+        $formatted = getpaid_format_date( $date );
 
-		if ( $format ) {
-			return $formatted;
-		}
+        if ( $format ) {
+            return $formatted;
+        }
 
-		return empty( $formatted ) ? '' : $date;
+        return empty( $formatted ) ? '' : $date;
 
     }
 
     /**
-	 * Get date when the invoice was created.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_date_created( $context = 'view' ) {
-		return $this->get_prop( 'date_created', $context );
-	}
+     * Get date when the invoice was created.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_date_created( $context = 'view' ) {
+        return $this->get_prop( 'date_created', $context );
+    }
 	
-	/**
-	 * Alias for self::get_date_created().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_created_date( $context = 'view' ) {
-		return $this->get_date_created( $context );
-    }
-
-    /**
-	 * Get GMT date when the invoice was created.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_date_created_gmt( $context = 'view' ) {
+    /**
+     * Alias for self::get_date_created().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_created_date( $context = 'view' ) {
+        return $this->get_date_created( $context );
+    }
+
+    /**
+     * Get GMT date when the invoice was created.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_date_created_gmt( $context = 'view' ) {
         $date = $this->get_date_created( $context );
 
         if ( $date ) {
             $date = get_gmt_from_date( $date );
         }
-		return $date;
+        return $date;
     }
 
     /**
-	 * Get date when the invoice was last modified.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_date_modified( $context = 'view' ) {
-		return $this->get_prop( 'date_modified', $context );
-	}
+     * Get date when the invoice was last modified.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_date_modified( $context = 'view' ) {
+        return $this->get_prop( 'date_modified', $context );
+    }
 
-	/**
-	 * Alias for self::get_date_modified().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_modified_date( $context = 'view' ) {
-		return $this->get_date_modified( $context );
+    /**
+     * Alias for self::get_date_modified().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_modified_date( $context = 'view' ) {
+        return $this->get_date_modified( $context );
     }
 
     /**
-	 * Get GMT date when the invoice was last modified.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_date_modified_gmt( $context = 'view' ) {
+     * Get GMT date when the invoice was last modified.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_date_modified_gmt( $context = 'view' ) {
         $date = $this->get_date_modified( $context );
 
         if ( $date ) {
             $date = get_gmt_from_date( $date );
         }
-		return $date;
+        return $date;
     }
 
     /**
-	 * Get the invoice due date.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_due_date( $context = 'view' ) {
-		return $this->get_prop( 'due_date', $context );
+     * Get the invoice due date.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_due_date( $context = 'view' ) {
+        return $this->get_prop( 'due_date', $context );
     }
 
     /**
-	 * Alias for self::get_due_date().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_date_due( $context = 'view' ) {
-		return $this->get_due_date( $context );
+     * Alias for self::get_due_date().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_date_due( $context = 'view' ) {
+        return $this->get_due_date( $context );
     }
 
     /**
-	 * Get the invoice GMT due date.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_due_date_gmt( $context = 'view' ) {
+     * Get the invoice GMT due date.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_due_date_gmt( $context = 'view' ) {
         $date = $this->get_due_date( $context );
 
         if ( $date ) {
             $date = get_gmt_from_date( $date );
         }
-		return $date;
+        return $date;
     }
 
     /**
-	 * Alias for self::get_due_date_gmt().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_gmt_date_due( $context = 'view' ) {
-		return $this->get_due_date_gmt( $context );
+     * Alias for self::get_due_date_gmt().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_gmt_date_due( $context = 'view' ) {
+        return $this->get_due_date_gmt( $context );
     }
 
     /**
-	 * Get date when the invoice was completed.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_completed_date( $context = 'view' ) {
-		return $this->get_prop( 'completed_date', $context );
+     * Get date when the invoice was completed.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_completed_date( $context = 'view' ) {
+        return $this->get_prop( 'completed_date', $context );
     }
 
     /**
-	 * Alias for self::get_completed_date().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_date_completed( $context = 'view' ) {
-		return $this->get_completed_date( $context );
+     * Alias for self::get_completed_date().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_date_completed( $context = 'view' ) {
+        return $this->get_completed_date( $context );
     }
 
     /**
-	 * Get GMT date when the invoice was was completed.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_completed_date_gmt( $context = 'view' ) {
+     * Get GMT date when the invoice was was completed.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_completed_date_gmt( $context = 'view' ) {
         $date = $this->get_completed_date( $context );
 
         if ( $date ) {
             $date = get_gmt_from_date( $date );
         }
-		return $date;
+        return $date;
     }
 
     /**
-	 * Alias for self::get_completed_date_gmt().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_gmt_completed_date( $context = 'view' ) {
-		return $this->get_completed_date_gmt( $context );
+     * Alias for self::get_completed_date_gmt().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_gmt_completed_date( $context = 'view' ) {
+        return $this->get_completed_date_gmt( $context );
     }
 
     /**
-	 * Get the invoice number.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_number( $context = 'view' ) {
-		$number = $this->get_prop( 'number', $context );
+     * Get the invoice number.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_number( $context = 'view' ) {
+        $number = $this->get_prop( 'number', $context );
 
-		if ( empty( $number ) ) {
-			$number = $this->generate_number();
-			$this->set_number( $this->generate_number() );
-		}
+        if ( empty( $number ) ) {
+            $number = $this->generate_number();
+            $this->set_number( $this->generate_number() );
+        }
 
-		return $number;
+        return $number;
     }
 
-	/**
-	 * Set the invoice number.
-	 *
-	 * @since 1.0.19
-	 */
-	public function maybe_set_number() {
+    /**
+     * Set the invoice number.
+     *
+     * @since 1.0.19
+     */
+    public function maybe_set_number() {
         $number = $this->get_number();
 
         if ( empty( $number ) || $this->get_id() == $number ) {
-			$this->set_number( $this->generate_number() );
+            $this->set_number( $this->generate_number() );
         }
 
-	}
+    }
 
     /**
-	 * Get the invoice key.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_key( $context = 'view' ) {
+     * Get the invoice key.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_key( $context = 'view' ) {
         return $this->get_prop( 'key', $context );
-	}
-
-	/**
-	 * Set the invoice key.
-	 *
-	 * @since 1.0.19
-	 */
-	public function maybe_set_key() {
+    }
+
+    /**
+     * Set the invoice key.
+     *
+     * @since 1.0.19
+     */
+    public function maybe_set_key() {
         $key = $this->get_key();
 
         if ( empty( $key ) ) {
@@ -603,140 +603,140 @@ 
     }
 
     /**
-	 * Get the invoice type.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_type( $context = 'view' ) {
+     * Get the invoice type.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_type( $context = 'view' ) {
         return $this->get_prop( 'type', $context );
-	}
-
-	/**
-	 * Returns the post type name.
-	 *
-	 * @since 1.0.19
-	 * @return string
-	 */
-	public function get_invoice_quote_type() {
+    }
+
+    /**
+     * Returns the post type name.
+     *
+     * @since 1.0.19
+     * @return string
+     */
+    public function get_invoice_quote_type() {
         return getpaid_get_post_type_label( $this->get_post_type(), false );
     }
 
     /**
-	 * Get the invoice post type label.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_label( $context = 'view' ) {
+     * Get the invoice post type label.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_label( $context = 'view' ) {
         return getpaid_get_post_type_label( $this->get_post_type( $context ), false );
-	}
-
-	/**
-	 * Get the invoice post type.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_post_type( $context = 'view' ) {
+    }
+
+    /**
+     * Get the invoice post type.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_post_type( $context = 'view' ) {
         return $this->get_prop( 'post_type', $context );
     }
 
     /**
-	 * Get the invoice mode.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_mode( $context = 'view' ) {
+     * Get the invoice mode.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_mode( $context = 'view' ) {
         return $this->get_prop( 'mode', $context );
     }
 
     /**
-	 * Get the invoice path.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_path( $context = 'view' ) {
+     * Get the invoice path.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_path( $context = 'view' ) {
         $path   = $this->get_prop( 'path', $context );
-		$prefix = $this->get_type();
+        $prefix = $this->get_type();
 
-		if ( 0 !== strpos( $path, $prefix ) ) {
-			$path = sanitize_title(  $prefix . '-' . $this->get_id()  );
-			$this->set_path( $path );
-		}
+        if ( 0 !== strpos( $path, $prefix ) ) {
+            $path = sanitize_title(  $prefix . '-' . $this->get_id()  );
+            $this->set_path( $path );
+        }
 
-		return $path;
+        return $path;
     }
 
     /**
-	 * Get the invoice name/title.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_name( $context = 'view' ) {
+     * Get the invoice name/title.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_name( $context = 'view' ) {
         return $this->get_prop( 'title', $context );
     }
 
     /**
-	 * Alias of self::get_name().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_title( $context = 'view' ) {
-		return $this->get_name( $context );
+     * Alias of self::get_name().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_title( $context = 'view' ) {
+        return $this->get_name( $context );
     }
 
     /**
-	 * Get the invoice description.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_description( $context = 'view' ) {
-		return $this->get_prop( 'description', $context );
+     * Get the invoice description.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_description( $context = 'view' ) {
+        return $this->get_prop( 'description', $context );
     }
 
     /**
-	 * Alias of self::get_description().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_excerpt( $context = 'view' ) {
-		return $this->get_description( $context );
+     * Alias of self::get_description().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_excerpt( $context = 'view' ) {
+        return $this->get_description( $context );
     }
 
     /**
-	 * Alias of self::get_description().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_summary( $context = 'view' ) {
-		return $this->get_description( $context );
+     * Alias of self::get_description().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_summary( $context = 'view' ) {
+        return $this->get_description( $context );
     }
 
     /**
-	 * Returns the user info.
-	 *
-	 * @since 1.0.19
+     * Returns the user info.
+     *
+     * @since 1.0.19
      * @param  string $context View or edit context.
-	 * @return array
-	 */
+     * @return array
+     */
     public function get_user_info( $context = 'view' ) {
 
         $user_info = array(
@@ -751,650 +751,650 @@ 
             'state'      => $this->get_state( $context ),
             'zip'        => $this->get_zip( $context ),
             'company'    => $this->get_company( $context ),
-			'company_id' => $this->get_company_id( $context ),
+            'company_id' => $this->get_company_id( $context ),
             'vat_number' => $this->get_vat_number( $context ),
             'discount'   => $this->get_discount_code( $context ),
-		);
+        );
 
-		return apply_filters( 'wpinv_user_info', $user_info, $this->get_id(), $this );
+        return apply_filters( 'wpinv_user_info', $user_info, $this->get_id(), $this );
 
     }
 
     /**
-	 * Get the customer id.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return int
-	 */
-	public function get_author( $context = 'view' ) {
-		return (int) $this->get_prop( 'author', $context );
+     * Get the customer id.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return int
+     */
+    public function get_author( $context = 'view' ) {
+        return (int) $this->get_prop( 'author', $context );
     }
 
     /**
-	 * Alias of self::get_author().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return int
-	 */
-	public function get_user_id( $context = 'view' ) {
-		return $this->get_author( $context );
+     * Alias of self::get_author().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return int
+     */
+    public function get_user_id( $context = 'view' ) {
+        return $this->get_author( $context );
     }
 
-     /**
-	 * Alias of self::get_author().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return int
-	 */
-	public function get_customer_id( $context = 'view' ) {
-		return $this->get_author( $context );
+        /**
+         * Alias of self::get_author().
+         *
+         * @since 1.0.19
+         * @param  string $context View or edit context.
+         * @return int
+         */
+    public function get_customer_id( $context = 'view' ) {
+        return $this->get_author( $context );
     }
 
     /**
-	 * Get the customer's ip.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_ip( $context = 'view' ) {
-		return $this->get_prop( 'user_ip', $context );
+     * Get the customer's ip.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_ip( $context = 'view' ) {
+        return $this->get_prop( 'user_ip', $context );
     }
 
     /**
-	 * Alias of self::get_ip().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_user_ip( $context = 'view' ) {
-		return $this->get_ip( $context );
+     * Alias of self::get_ip().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_user_ip( $context = 'view' ) {
+        return $this->get_ip( $context );
     }
 
-     /**
-	 * Alias of self::get_ip().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_customer_ip( $context = 'view' ) {
-		return $this->get_ip( $context );
+        /**
+         * Alias of self::get_ip().
+         *
+         * @since 1.0.19
+         * @param  string $context View or edit context.
+         * @return string
+         */
+    public function get_customer_ip( $context = 'view' ) {
+        return $this->get_ip( $context );
     }
 
     /**
-	 * Get the customer's first name.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_first_name( $context = 'view' ) {
-		return $this->get_prop( 'first_name', $context );
+     * Get the customer's first name.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_first_name( $context = 'view' ) {
+        return $this->get_prop( 'first_name', $context );
     }
 
     /**
-	 * Alias of self::get_first_name().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_user_first_name( $context = 'view' ) {
-		return $this->get_first_name( $context );
+     * Alias of self::get_first_name().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_user_first_name( $context = 'view' ) {
+        return $this->get_first_name( $context );
     }
 
-     /**
-	 * Alias of self::get_first_name().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_customer_first_name( $context = 'view' ) {
-		return $this->get_first_name( $context );
+        /**
+         * Alias of self::get_first_name().
+         *
+         * @since 1.0.19
+         * @param  string $context View or edit context.
+         * @return string
+         */
+    public function get_customer_first_name( $context = 'view' ) {
+        return $this->get_first_name( $context );
     }
 
     /**
-	 * Get the customer's last name.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_last_name( $context = 'view' ) {
-		return $this->get_prop( 'last_name', $context );
+     * Get the customer's last name.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_last_name( $context = 'view' ) {
+        return $this->get_prop( 'last_name', $context );
     }
 
     /**
-	 * Alias of self::get_last_name().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_user_last_name( $context = 'view' ) {
-		return $this->get_last_name( $context );
+     * Alias of self::get_last_name().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_user_last_name( $context = 'view' ) {
+        return $this->get_last_name( $context );
     }
 
     /**
-	 * Alias of self::get_last_name().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_customer_last_name( $context = 'view' ) {
-		return $this->get_last_name( $context );
+     * Alias of self::get_last_name().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_customer_last_name( $context = 'view' ) {
+        return $this->get_last_name( $context );
     }
 
     /**
-	 * Get the customer's full name.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_full_name( $context = 'view' ) {
-		return trim( $this->get_first_name( $context ) . ' ' . $this->get_last_name( $context ) );
+     * Get the customer's full name.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_full_name( $context = 'view' ) {
+        return trim( $this->get_first_name( $context ) . ' ' . $this->get_last_name( $context ) );
     }
 
     /**
-	 * Alias of self::get_full_name().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_user_full_name( $context = 'view' ) {
-		return $this->get_full_name( $context );
+     * Alias of self::get_full_name().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_user_full_name( $context = 'view' ) {
+        return $this->get_full_name( $context );
     }
 
     /**
-	 * Alias of self::get_full_name().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_customer_full_name( $context = 'view' ) {
-		return $this->get_full_name( $context );
+     * Alias of self::get_full_name().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_customer_full_name( $context = 'view' ) {
+        return $this->get_full_name( $context );
     }
 
     /**
-	 * Get the customer's phone number.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_phone( $context = 'view' ) {
-		return $this->get_prop( 'phone', $context );
+     * Get the customer's phone number.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_phone( $context = 'view' ) {
+        return $this->get_prop( 'phone', $context );
     }
 
     /**
-	 * Alias of self::get_phone().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_phone_number( $context = 'view' ) {
-		return $this->get_phone( $context );
+     * Alias of self::get_phone().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_phone_number( $context = 'view' ) {
+        return $this->get_phone( $context );
     }
 
     /**
-	 * Alias of self::get_phone().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_user_phone( $context = 'view' ) {
-		return $this->get_phone( $context );
-    }
-
+     * Alias of self::get_phone().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_user_phone( $context = 'view' ) {
+        return $this->get_phone( $context );
+    }
+
+    /**
+     * Alias of self::get_phone().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_customer_phone( $context = 'view' ) {
+        return $this->get_phone( $context );
+    }
+
+    /**
+     * Get the customer's email address.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_email( $context = 'view' ) {
+        return $this->get_prop( 'email', $context );
+    }
+
+    /**
+     * Alias of self::get_email().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_email_address( $context = 'view' ) {
+        return $this->get_email( $context );
+    }
+
+    /**
+     * Alias of self::get_email().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_user_email( $context = 'view' ) {
+        return $this->get_email( $context );
+    }
+
+    /**
+     * Alias of self::get_email().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_customer_email( $context = 'view' ) {
+        return $this->get_email( $context );
+    }
+
+    /**
+     * Get the customer's country.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_country( $context = 'view' ) {
+        $country = $this->get_prop( 'country', $context );
+        return empty( $country ) ? wpinv_get_default_country() : $country;
+    }
+
+    /**
+     * Alias of self::get_country().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_user_country( $context = 'view' ) {
+        return $this->get_country( $context );
+    }
+
+    /**
+     * Alias of self::get_country().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_customer_country( $context = 'view' ) {
+        return $this->get_country( $context );
+    }
+
+    /**
+     * Get the customer's state.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_state( $context = 'view' ) {
+        $state = $this->get_prop( 'state', $context );
+        return empty( $state ) ? wpinv_get_default_state() : $state;
+    }
+
     /**
-	 * Alias of self::get_phone().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_customer_phone( $context = 'view' ) {
-		return $this->get_phone( $context );
+     * Alias of self::get_state().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_user_state( $context = 'view' ) {
+        return $this->get_state( $context );
     }
 
     /**
-	 * Get the customer's email address.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_email( $context = 'view' ) {
-		return $this->get_prop( 'email', $context );
+     * Alias of self::get_state().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_customer_state( $context = 'view' ) {
+        return $this->get_state( $context );
     }
 
     /**
-	 * Alias of self::get_email().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_email_address( $context = 'view' ) {
-		return $this->get_email( $context );
+     * Get the customer's city.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_city( $context = 'view' ) {
+        return $this->get_prop( 'city', $context );
     }
 
     /**
-	 * Alias of self::get_email().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_user_email( $context = 'view' ) {
-		return $this->get_email( $context );
+     * Alias of self::get_city().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_user_city( $context = 'view' ) {
+        return $this->get_city( $context );
     }
 
     /**
-	 * Alias of self::get_email().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_customer_email( $context = 'view' ) {
-		return $this->get_email( $context );
+     * Alias of self::get_city().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_customer_city( $context = 'view' ) {
+        return $this->get_city( $context );
     }
 
     /**
-	 * Get the customer's country.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_country( $context = 'view' ) {
-		$country = $this->get_prop( 'country', $context );
-		return empty( $country ) ? wpinv_get_default_country() : $country;
+     * Get the customer's zip.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_zip( $context = 'view' ) {
+        return $this->get_prop( 'zip', $context );
     }
 
     /**
-	 * Alias of self::get_country().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_user_country( $context = 'view' ) {
-		return $this->get_country( $context );
+     * Alias of self::get_zip().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_user_zip( $context = 'view' ) {
+        return $this->get_zip( $context );
     }
 
     /**
-	 * Alias of self::get_country().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_customer_country( $context = 'view' ) {
-		return $this->get_country( $context );
+     * Alias of self::get_zip().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_customer_zip( $context = 'view' ) {
+        return $this->get_zip( $context );
     }
 
     /**
-	 * Get the customer's state.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_state( $context = 'view' ) {
-		$state = $this->get_prop( 'state', $context );
-		return empty( $state ) ? wpinv_get_default_state() : $state;
+     * Get the customer's company.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_company( $context = 'view' ) {
+        return $this->get_prop( 'company', $context );
+    }
+
+    /**
+     * Alias of self::get_company().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_user_company( $context = 'view' ) {
+        return $this->get_company( $context );
+    }
+
+    /**
+     * Alias of self::get_company().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_customer_company( $context = 'view' ) {
+        return $this->get_company( $context );
+    }
+
+    /**
+     * Get the customer's company id.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_company_id( $context = 'view' ) {
+        return $this->get_prop( 'company_id', $context );
     }
 
     /**
-	 * Alias of self::get_state().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_user_state( $context = 'view' ) {
-		return $this->get_state( $context );
+     * Get the customer's vat number.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_vat_number( $context = 'view' ) {
+        return $this->get_prop( 'vat_number', $context );
     }
 
     /**
-	 * Alias of self::get_state().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_customer_state( $context = 'view' ) {
-		return $this->get_state( $context );
+     * Alias of self::get_vat_number().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_user_vat_number( $context = 'view' ) {
+        return $this->get_vat_number( $context );
+    }
+
+    /**
+     * Alias of self::get_vat_number().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_customer_vat_number( $context = 'view' ) {
+        return $this->get_vat_number( $context );
     }
 
     /**
-	 * Get the customer's city.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_city( $context = 'view' ) {
-		return $this->get_prop( 'city', $context );
+     * Get the customer's vat rate.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_vat_rate( $context = 'view' ) {
+        return $this->get_prop( 'vat_rate', $context );
     }
 
     /**
-	 * Alias of self::get_city().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_user_city( $context = 'view' ) {
-		return $this->get_city( $context );
+     * Alias of self::get_vat_rate().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_user_vat_rate( $context = 'view' ) {
+        return $this->get_vat_rate( $context );
     }
 
     /**
-	 * Alias of self::get_city().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_customer_city( $context = 'view' ) {
-		return $this->get_city( $context );
+     * Alias of self::get_vat_rate().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_customer_vat_rate( $context = 'view' ) {
+        return $this->get_vat_rate( $context );
     }
 
     /**
-	 * Get the customer's zip.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_zip( $context = 'view' ) {
-		return $this->get_prop( 'zip', $context );
+     * Get the customer's address.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_address( $context = 'view' ) {
+        return $this->get_prop( 'address', $context );
     }
 
     /**
-	 * Alias of self::get_zip().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_user_zip( $context = 'view' ) {
-		return $this->get_zip( $context );
+     * Alias of self::get_address().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_user_address( $context = 'view' ) {
+        return $this->get_address( $context );
     }
 
     /**
-	 * Alias of self::get_zip().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_customer_zip( $context = 'view' ) {
-		return $this->get_zip( $context );
+     * Alias of self::get_address().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_customer_address( $context = 'view' ) {
+        return $this->get_address( $context );
     }
 
     /**
-	 * Get the customer's company.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_company( $context = 'view' ) {
-		return $this->get_prop( 'company', $context );
+     * Get whether the customer has viewed the invoice or not.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return bool
+     */
+    public function get_is_viewed( $context = 'view' ) {
+        return (bool) $this->get_prop( 'is_viewed', $context );
     }
 
     /**
-	 * Alias of self::get_company().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_user_company( $context = 'view' ) {
-		return $this->get_company( $context );
+     * Get other recipients for invoice communications.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return bool
+     */
+    public function get_email_cc( $context = 'view' ) {
+        return $this->get_prop( 'email_cc', $context );
     }
 
     /**
-	 * Alias of self::get_company().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_customer_company( $context = 'view' ) {
-		return $this->get_company( $context );
+     * Get invoice template.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return bool
+     */
+    public function get_template( $context = 'view' ) {
+        return $this->get_prop( 'template', $context );
     }
 
-	/**
-	 * Get the customer's company id.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_company_id( $context = 'view' ) {
-		return $this->get_prop( 'company_id', $context );
+    /**
+     * Get invoice source.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return bool
+     */
+    public function get_created_via( $context = 'view' ) {
+        return $this->get_prop( 'created_via', $context );
     }
 
     /**
-	 * Get the customer's vat number.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_vat_number( $context = 'view' ) {
-		return $this->get_prop( 'vat_number', $context );
+     * Get whether the customer has confirmed their address.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return bool
+     */
+    public function get_address_confirmed( $context = 'view' ) {
+        return (bool) $this->get_prop( 'address_confirmed', $context );
     }
 
     /**
-	 * Alias of self::get_vat_number().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_user_vat_number( $context = 'view' ) {
-		return $this->get_vat_number( $context );
+     * Alias of self::get_address_confirmed().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return bool
+     */
+    public function get_user_address_confirmed( $context = 'view' ) {
+        return $this->get_address_confirmed( $context );
     }
 
     /**
-	 * Alias of self::get_vat_number().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_customer_vat_number( $context = 'view' ) {
-		return $this->get_vat_number( $context );
+     * Alias of self::get_address().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return bool
+     */
+    public function get_customer_address_confirmed( $context = 'view' ) {
+        return $this->get_address_confirmed( $context );
     }
 
-    /**
-	 * Get the customer's vat rate.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_vat_rate( $context = 'view' ) {
-		return $this->get_prop( 'vat_rate', $context );
-    }
-
-    /**
-	 * Alias of self::get_vat_rate().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_user_vat_rate( $context = 'view' ) {
-		return $this->get_vat_rate( $context );
-    }
-
-    /**
-	 * Alias of self::get_vat_rate().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_customer_vat_rate( $context = 'view' ) {
-		return $this->get_vat_rate( $context );
-    }
-
-    /**
-	 * Get the customer's address.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_address( $context = 'view' ) {
-		return $this->get_prop( 'address', $context );
-    }
-
-    /**
-	 * Alias of self::get_address().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_user_address( $context = 'view' ) {
-		return $this->get_address( $context );
-    }
-
-    /**
-	 * Alias of self::get_address().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_customer_address( $context = 'view' ) {
-		return $this->get_address( $context );
-    }
-
-    /**
-	 * Get whether the customer has viewed the invoice or not.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return bool
-	 */
-	public function get_is_viewed( $context = 'view' ) {
-		return (bool) $this->get_prop( 'is_viewed', $context );
-	}
-
-	/**
-	 * Get other recipients for invoice communications.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return bool
-	 */
-	public function get_email_cc( $context = 'view' ) {
-		return $this->get_prop( 'email_cc', $context );
-	}
-
-	/**
-	 * Get invoice template.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return bool
-	 */
-	public function get_template( $context = 'view' ) {
-		return $this->get_prop( 'template', $context );
-	}
-
-	/**
-	 * Get invoice source.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return bool
-	 */
-	public function get_created_via( $context = 'view' ) {
-		return $this->get_prop( 'created_via', $context );
-	}
-
-	/**
-	 * Get whether the customer has confirmed their address.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return bool
-	 */
-	public function get_address_confirmed( $context = 'view' ) {
-		return (bool) $this->get_prop( 'address_confirmed', $context );
-    }
-
-    /**
-	 * Alias of self::get_address_confirmed().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return bool
-	 */
-	public function get_user_address_confirmed( $context = 'view' ) {
-		return $this->get_address_confirmed( $context );
-    }
-
-    /**
-	 * Alias of self::get_address().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return bool
-	 */
-	public function get_customer_address_confirmed( $context = 'view' ) {
-		return $this->get_address_confirmed( $context );
-    }
-
-	/**
-	 * Get the shipping amount.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return float
-	 */
-	public function get_shipping( $context = 'view' ) {
-
-		if ( $context = 'view' ) {
-			return floatval( $this->get_prop( 'shipping', $context ) );
-		}
+    /**
+     * Get the shipping amount.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return float
+     */
+    public function get_shipping( $context = 'view' ) {
+
+        if ( $context = 'view' ) {
+            return floatval( $this->get_prop( 'shipping', $context ) );
+        }
  
-		return $this->get_prop( 'shipping', $context );
+        return $this->get_prop( 'shipping', $context );
     }
 
-	public function has_shipping() {
-		return null !== $this->get_prop( 'shipping', 'edit' );
+    public function has_shipping() {
+        return null !== $this->get_prop( 'shipping', 'edit' );
     }
 
     /**
-	 * Get the invoice subtotal.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return float
-	 */
-	public function get_subtotal( $context = 'view' ) {
+     * Get the invoice subtotal.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return float
+     */
+    public function get_subtotal( $context = 'view' ) {
         $subtotal = (float) $this->get_prop( 'subtotal', $context );
 
         // Backwards compatibility.
@@ -1406,198 +1406,198 @@ 
     }
 
     /**
-	 * Get the invoice discount total.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return float
-	 */
-	public function get_total_discount( $context = 'view' ) {
-		return wpinv_round_amount( wpinv_sanitize_amount( $this->get_prop( 'total_discount', $context ) ) );
+     * Get the invoice discount total.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return float
+     */
+    public function get_total_discount( $context = 'view' ) {
+        return wpinv_round_amount( wpinv_sanitize_amount( $this->get_prop( 'total_discount', $context ) ) );
     }
 
     /**
-	 * Get the invoice tax total.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return float
-	 */
-	public function get_total_tax( $context = 'view' ) {
-		return wpinv_round_amount( wpinv_sanitize_amount( $this->get_prop( 'total_tax', $context ) ) );
-	}
+     * Get the invoice tax total.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return float
+     */
+    public function get_total_tax( $context = 'view' ) {
+        return wpinv_round_amount( wpinv_sanitize_amount( $this->get_prop( 'total_tax', $context ) ) );
+    }
 
-	/**
-	 * @deprecated
-	 */
-	public function get_final_tax( $currency = false ) {
-		$tax = $this->get_total_tax();
+    /**
+     * @deprecated
+     */
+    public function get_final_tax( $currency = false ) {
+        $tax = $this->get_total_tax();
 
         if ( $currency ) {
-			return wpinv_price( $tax, $this->get_currency() );
+            return wpinv_price( $tax, $this->get_currency() );
         }
 
         return $tax;
     }
 
     /**
-	 * Get the invoice fees total.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return float
-	 */
-	public function get_total_fees( $context = 'view' ) {
-		return wpinv_round_amount( wpinv_sanitize_amount( $this->get_prop( 'total_fees', $context ) ) );
+     * Get the invoice fees total.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return float
+     */
+    public function get_total_fees( $context = 'view' ) {
+        return wpinv_round_amount( wpinv_sanitize_amount( $this->get_prop( 'total_fees', $context ) ) );
     }
 
     /**
-	 * Alias for self::get_total_fees().
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return float
-	 */
-	public function get_fees_total( $context = 'view' ) {
-		return $this->get_total_fees( $context );
+     * Alias for self::get_total_fees().
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return float
+     */
+    public function get_fees_total( $context = 'view' ) {
+        return $this->get_total_fees( $context );
     }
 
     /**
-	 * Get the invoice total.
-	 *
-	 * @since 1.0.19
+     * Get the invoice total.
+     *
+     * @since 1.0.19
      * @return float
-	 */
-	public function get_total( $context = 'view' ) {
-		$total = $this->get_prop( 'total', $context );
-
-		if ( $this->has_shipping() && $context == 'view' ) {
-			$total = $this->get_prop( 'total', $context ) + $this->get_shipping( $context );
-		}
-
-		return wpinv_round_amount( wpinv_sanitize_amount( $total ) );
-	}
-
-	/**
-	 * Retrieves the non-recurring total of items.
-	 *
-	 * @since 2.3.0
-	 * @return float
-	 */
-	public function get_non_recurring_total() {
-
-		$subtotal = 0;
-		foreach ( $this->get_items() as $item ) {
-			if ( ! $item->is_recurring() ) {
-				$subtotal += $item->get_sub_total();
-			}
-		}
-
-		foreach ( $this->get_fees() as $fee ) {
-			if ( empty( $fee['recurring_fee'] ) ) {
-				$subtotal += wpinv_sanitize_amount( $fee['initial_fee'] );
-			}
-		}
-
-		$subtotal = wpinv_round_amount( wpinv_sanitize_amount( $subtotal ) );
+     */
+    public function get_total( $context = 'view' ) {
+        $total = $this->get_prop( 'total', $context );
+
+        if ( $this->has_shipping() && $context == 'view' ) {
+            $total = $this->get_prop( 'total', $context ) + $this->get_shipping( $context );
+        }
+
+        return wpinv_round_amount( wpinv_sanitize_amount( $total ) );
+    }
+
+    /**
+     * Retrieves the non-recurring total of items.
+     *
+     * @since 2.3.0
+     * @return float
+     */
+    public function get_non_recurring_total() {
+
+        $subtotal = 0;
+        foreach ( $this->get_items() as $item ) {
+            if ( ! $item->is_recurring() ) {
+                $subtotal += $item->get_sub_total();
+            }
+        }
+
+        foreach ( $this->get_fees() as $fee ) {
+            if ( empty( $fee['recurring_fee'] ) ) {
+                $subtotal += wpinv_sanitize_amount( $fee['initial_fee'] );
+            }
+        }
+
+        $subtotal = wpinv_round_amount( wpinv_sanitize_amount( $subtotal ) );
         return apply_filters( 'wpinv_get_non_recurring_invoice_total', $subtotal, $this );
 
     }
 
-	/**
-	 * Get the invoice totals.
-	 *
-	 * @since 1.0.19
+    /**
+     * Get the invoice totals.
+     *
+     * @since 1.0.19
      * @return array
-	 */
-	public function get_totals() {
-		return $this->totals;
+     */
+    public function get_totals() {
+        return $this->totals;
     }
 
     /**
-	 * Get the initial invoice total.
-	 *
-	 * @since 1.0.19
+     * Get the initial invoice total.
+     *
+     * @since 1.0.19
      * @param  string $context View or edit context.
      * @return float
-	 */
+     */
     public function get_initial_total() {
 
-		if ( empty( $this->totals ) ) {
-			$this->recalculate_total();
-		}
+        if ( empty( $this->totals ) ) {
+            $this->recalculate_total();
+        }
 
-		$tax      = $this->totals['tax']['initial'];
-		$fee      = $this->totals['fee']['initial'];
-		$discount = $this->totals['discount']['initial'];
-		$subtotal = $this->totals['subtotal']['initial'];
-		$total    = $tax + $fee - $discount + $subtotal;
+        $tax      = $this->totals['tax']['initial'];
+        $fee      = $this->totals['fee']['initial'];
+        $discount = $this->totals['discount']['initial'];
+        $subtotal = $this->totals['subtotal']['initial'];
+        $total    = $tax + $fee - $discount + $subtotal;
 
-		if ( 0 > $total ) {
-			$total = 0;
-		}
+        if ( 0 > $total ) {
+            $total = 0;
+        }
 
-		$total = wpinv_round_amount( wpinv_sanitize_amount( $total ) );
+        $total = wpinv_round_amount( wpinv_sanitize_amount( $total ) );
         return apply_filters( 'wpinv_get_initial_invoice_total', $total, $this );
-	}
+    }
 
-	/**
-	 * Get the recurring invoice total.
-	 *
-	 * @since 1.0.19
+    /**
+     * Get the recurring invoice total.
+     *
+     * @since 1.0.19
      * @param  string $context View or edit context.
      * @return float
-	 */
+     */
     public function get_recurring_total() {
 
-		if ( empty( $this->totals ) ) {
-			$this->recalculate_total();
-		}
+        if ( empty( $this->totals ) ) {
+            $this->recalculate_total();
+        }
 
-		$tax      = $this->totals['tax']['recurring'];
-		$fee      = $this->totals['fee']['recurring'];
-		$discount = $this->totals['discount']['recurring'];
-		$subtotal = $this->totals['subtotal']['recurring'];
-		$total    = $tax + $fee - $discount + $subtotal;
+        $tax      = $this->totals['tax']['recurring'];
+        $fee      = $this->totals['fee']['recurring'];
+        $discount = $this->totals['discount']['recurring'];
+        $subtotal = $this->totals['subtotal']['recurring'];
+        $total    = $tax + $fee - $discount + $subtotal;
 
-		if ( 0 > $total ) {
-			$total = 0;
-		}
+        if ( 0 > $total ) {
+            $total = 0;
+        }
 
-		$total = wpinv_round_amount( wpinv_sanitize_amount( $total ) );
+        $total = wpinv_round_amount( wpinv_sanitize_amount( $total ) );
         return apply_filters( 'wpinv_get_recurring_invoice_total', $total, $this );
-	}
+    }
 
-	/**
-	 * Returns recurring payment details.
-	 *
-	 * @since 1.0.19
+    /**
+     * Returns recurring payment details.
+     *
+     * @since 1.0.19
      * @param  string $field Optionally provide a field to return.
-	 * @param string $currency Whether to include the currency.
+     * @param string $currency Whether to include the currency.
      * @return float|string
-	 */
+     */
     public function get_recurring_details( $field = '', $currency = false ) {
 
-		// Maybe recalculate totals.
-		if ( empty( $this->totals ) ) {
-			$this->recalculate_total();
-		}
+        // Maybe recalculate totals.
+        if ( empty( $this->totals ) ) {
+            $this->recalculate_total();
+        }
 
-		// Prepare recurring totals.
+        // Prepare recurring totals.
         $data = apply_filters(
-			'wpinv_get_invoice_recurring_details',
-			array(
-				'cart_details' => $this->get_cart_details(),
-				'subtotal'     => $this->totals['subtotal']['recurring'],
-				'discount'     => $this->totals['discount']['recurring'],
-				'tax'          => $this->totals['tax']['recurring'],
-				'fee'          => $this->totals['fee']['recurring'],
-				'total'        => $this->get_recurring_total(),
-			),
-			$this,
-			$field,
-			$currency
-		);
+            'wpinv_get_invoice_recurring_details',
+            array(
+                'cart_details' => $this->get_cart_details(),
+                'subtotal'     => $this->totals['subtotal']['recurring'],
+                'discount'     => $this->totals['discount']['recurring'],
+                'tax'          => $this->totals['tax']['recurring'],
+                'fee'          => $this->totals['fee']['recurring'],
+                'total'        => $this->get_recurring_total(),
+            ),
+            $this,
+            $field,
+            $currency
+        );
 
         if ( isset( $data[$field] ) ) {
             return ( $currency ? wpinv_price( $data[$field], $this->get_currency() ) : $data[$field] );
@@ -1607,166 +1607,166 @@ 
     }
 
     /**
-	 * Get the invoice fees.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return array
-	 */
-	public function get_fees( $context = 'view' ) {
-		return wpinv_parse_list( $this->get_prop( 'fees', $context ) );
+     * Get the invoice fees.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return array
+     */
+    public function get_fees( $context = 'view' ) {
+        return wpinv_parse_list( $this->get_prop( 'fees', $context ) );
     }
 
     /**
-	 * Get the invoice discounts.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return array
-	 */
-	public function get_discounts( $context = 'view' ) {
-		return wpinv_parse_list( $this->get_prop( 'discounts', $context ) );
+     * Get the invoice discounts.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return array
+     */
+    public function get_discounts( $context = 'view' ) {
+        return wpinv_parse_list( $this->get_prop( 'discounts', $context ) );
     }
 
     /**
-	 * Get the invoice taxes.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return array
-	 */
-	public function get_taxes( $context = 'view' ) {
-		return wpinv_parse_list( $this->get_prop( 'taxes', $context ) );
+     * Get the invoice taxes.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return array
+     */
+    public function get_taxes( $context = 'view' ) {
+        return wpinv_parse_list( $this->get_prop( 'taxes', $context ) );
     }
 
     /**
-	 * Get the invoice items.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return GetPaid_Form_Item[]
-	 */
-	public function get_items( $context = 'view' ) {
+     * Get the invoice items.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return GetPaid_Form_Item[]
+     */
+    public function get_items( $context = 'view' ) {
         return $this->get_prop( 'items', $context );
-	}
+    }
 
-	/**
-	 * Get the invoice item ids.
-	 *
-	 * @since 1.0.19
-	 * @return string
-	 */
-	public function get_item_ids() {
-		return implode( ', ', wp_list_pluck( $this->get_cart_details(), 'item_id' ) );
+    /**
+     * Get the invoice item ids.
+     *
+     * @since 1.0.19
+     * @return string
+     */
+    public function get_item_ids() {
+        return implode( ', ', wp_list_pluck( $this->get_cart_details(), 'item_id' ) );
     }
 
     /**
-	 * Get the invoice's payment form.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return int
-	 */
-	public function get_payment_form( $context = 'view' ) {
-		return intval( $this->get_prop( 'payment_form', $context ) );
+     * Get the invoice's payment form.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return int
+     */
+    public function get_payment_form( $context = 'view' ) {
+        return intval( $this->get_prop( 'payment_form', $context ) );
     }
 
     /**
-	 * Get the invoice's submission id.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_submission_id( $context = 'view' ) {
-		return $this->get_prop( 'submission_id', $context );
+     * Get the invoice's submission id.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_submission_id( $context = 'view' ) {
+        return $this->get_prop( 'submission_id', $context );
     }
 
     /**
-	 * Get the invoice's discount code.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_discount_code( $context = 'view' ) {
-		return $this->get_prop( 'discount_code', $context );
+     * Get the invoice's discount code.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_discount_code( $context = 'view' ) {
+        return $this->get_prop( 'discount_code', $context );
     }
 
     /**
-	 * Get the invoice's gateway.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_gateway( $context = 'view' ) {
-		return $this->get_prop( 'gateway', $context );
+     * Get the invoice's gateway.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_gateway( $context = 'view' ) {
+        return $this->get_prop( 'gateway', $context );
     }
 
     /**
-	 * Get the invoice's gateway display title.
-	 *
-	 * @since 1.0.19
-	 * @return string
-	 */
+     * Get the invoice's gateway display title.
+     *
+     * @since 1.0.19
+     * @return string
+     */
     public function get_gateway_title() {
         $title =  wpinv_get_gateway_checkout_label( $this->get_gateway() );
         return apply_filters( 'wpinv_gateway_title', $title, $this->get_id(), $this );
     }
 
     /**
-	 * Get the invoice's transaction id.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_transaction_id( $context = 'view' ) {
-		return $this->get_prop( 'transaction_id', $context );
+     * Get the invoice's transaction id.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_transaction_id( $context = 'view' ) {
+        return $this->get_prop( 'transaction_id', $context );
     }
 
     /**
-	 * Get the invoice's currency.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_currency( $context = 'view' ) {
+     * Get the invoice's currency.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_currency( $context = 'view' ) {
         $currency = $this->get_prop( 'currency', $context );
         return empty( $currency ) ? wpinv_get_currency() : $currency;
     }
 
     /**
-	 * Checks if we are charging taxes for this invoice.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return bool
-	 */
-	public function get_disable_taxes( $context = 'view' ) {
+     * Checks if we are charging taxes for this invoice.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return bool
+     */
+    public function get_disable_taxes( $context = 'view' ) {
         return (bool) $this->get_prop( 'disable_taxes', $context );
     }
 
     /**
-	 * Retrieves the subscription id for an invoice.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return int
-	 */
+     * Retrieves the subscription id for an invoice.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return int
+     */
     public function get_subscription_id( $context = 'view' ) {
-		return $this->is_renewal() ? $this->get_parent()->get_subscription_id( $context ) : $this->get_prop( 'subscription_id', $context );
-	}
-
-	/**
-	 * Retrieves the remote subscription id for an invoice.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return int
-	 */
+        return $this->is_renewal() ? $this->get_parent()->get_subscription_id( $context ) : $this->get_prop( 'subscription_id', $context );
+    }
+
+    /**
+     * Retrieves the remote subscription id for an invoice.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return int
+     */
     public function get_remote_subscription_id( $context = 'view' ) {
         $subscription_id = $this->get_prop( 'remote_subscription_id', $context );
 
@@ -1779,12 +1779,12 @@ 
     }
 
     /**
-	 * Retrieves the payment meta for an invoice.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return array
-	 */
+     * Retrieves the payment meta for an invoice.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return array
+     */
     public function get_payment_meta( $context = 'view' ) {
 
         return array(
@@ -1804,31 +1804,31 @@ 
     }
 
     /**
-	 * Retrieves the cart details for an invoice.
-	 *
-	 * @since 1.0.19
-	 * @return array
-	 */
+     * Retrieves the cart details for an invoice.
+     *
+     * @since 1.0.19
+     * @return array
+     */
     public function get_cart_details() {
         $items        = $this->get_items();
         $cart_details = array();
 
         foreach ( $items as $item ) {
-			$item->invoice_id = $this->get_id();
+            $item->invoice_id = $this->get_id();
             $cart_details[]   = $item->prepare_data_for_saving();
         }
 
         return $cart_details;
-	}
+    }
 
-	/**
-	 * Retrieves the recurring item.
-	 *
-	 * @return null|GetPaid_Form_Item|int
-	 */
-	public function get_recurring( $object = false ) {
+    /**
+     * Retrieves the recurring item.
+     *
+     * @return null|GetPaid_Form_Item|int
+     */
+    public function get_recurring( $object = false ) {
 
-		// Are we returning an object?
+        // Are we returning an object?
         if ( $object ) {
             return $this->get_item( $this->recurring_item );
         }
@@ -1836,114 +1836,114 @@ 
         return $this->recurring_item;
     }
 
-	/**
-	 * Retrieves the subscription name.
-	 *
-	 * @since 1.0.19
-	 * @return string
-	 */
-	public function get_subscription_name() {
+    /**
+     * Retrieves the subscription name.
+     *
+     * @since 1.0.19
+     * @return string
+     */
+    public function get_subscription_name() {
 
-		// Retrieve the recurring name
+        // Retrieve the recurring name
         $item = $this->get_recurring( true );
 
-		// Abort if it does not exist.
+        // Abort if it does not exist.
         if ( empty( $item ) ) {
             return '';
         }
 
-		// Return the item name.
+        // Return the item name.
         return apply_filters( 'wpinv_invoice_get_subscription_name', $item->get_name(), $this );
-	}
-
-	/**
-	 * Retrieves the view url.
-	 *
-	 * @since 1.0.19
-	 * @return string
-	 */
-	public function get_view_url() {
+    }
+
+    /**
+     * Retrieves the view url.
+     *
+     * @since 1.0.19
+     * @return string
+     */
+    public function get_view_url() {
         $invoice_url = get_permalink( $this->get_id() );
-		$invoice_url = add_query_arg( 'invoice_key', $this->get_key(), $invoice_url );
+        $invoice_url = add_query_arg( 'invoice_key', $this->get_key(), $invoice_url );
         return apply_filters( 'wpinv_get_view_url', $invoice_url, $this );
-	}
+    }
 
-	/**
-	 * Retrieves the payment url.
-	 *
-	 * @since 1.0.19
-	 * @return string
-	 */
-	public function get_checkout_payment_url( $deprecated = false, $secret = false ) {
+    /**
+     * Retrieves the payment url.
+     *
+     * @since 1.0.19
+     * @return string
+     */
+    public function get_checkout_payment_url( $deprecated = false, $secret = false ) {
 
-		// Retrieve the checkout url.
+        // Retrieve the checkout url.
         $pay_url = wpinv_get_checkout_uri();
 
-		// Maybe force ssl.
+        // Maybe force ssl.
         if ( is_ssl() ) {
             $pay_url = str_replace( 'http:', 'https:', $pay_url );
         }
 
-		// Add the invoice key.
-		$pay_url = add_query_arg( 'invoice_key', $this->get_key(), $pay_url );
+        // Add the invoice key.
+        $pay_url = add_query_arg( 'invoice_key', $this->get_key(), $pay_url );
 
-		// (Maybe?) add a secret
+        // (Maybe?) add a secret
         if ( $secret ) {
             $pay_url = add_query_arg( array( '_wpipay' => md5( $this->get_user_id() . '::' . $this->get_email() . '::' . $this->get_key() ) ), $pay_url );
         }
 
         return apply_filters( 'wpinv_get_checkout_payment_url', $pay_url, $this, $deprecated, $secret );
-	}
+    }
 	
-	/**
-	 * Retrieves the receipt url.
-	 *
-	 * @since 1.0.19
-	 * @return string
-	 */
-	public function get_receipt_url() {
-
-		// Retrieve the checkout url.
+    /**
+     * Retrieves the receipt url.
+     *
+     * @since 1.0.19
+     * @return string
+     */
+    public function get_receipt_url() {
+
+        // Retrieve the checkout url.
         $receipt_url = wpinv_get_success_page_uri();
 
-		// Maybe force ssl.
+        // Maybe force ssl.
         if ( is_ssl() ) {
             $receipt_url = str_replace( 'http:', 'https:', $receipt_url );
         }
 
-		// Add the invoice key.
-		$receipt_url = add_query_arg( 'invoice_key', $this->get_key(), $receipt_url );
+        // Add the invoice key.
+        $receipt_url = add_query_arg( 'invoice_key', $this->get_key(), $receipt_url );
 
         return apply_filters( 'getpaid_get_invoice_receipt_url', $receipt_url, $this );
-	}
+    }
 	
-	/**
-	 * Retrieves the default status.
-	 *
-	 * @since 1.0.19
-	 * @return string
-	 */
-	public function get_default_status() {
-
-		$type   = $this->get_type();
-		$status = "wpi-$type-pending";
-		return str_replace( '-invoice', '', $status );
-
-	}
-
-    /**
-	 * Magic method for accessing invoice properties.
-	 *
-	 * @since 1.0.15
-	 * @access public
-	 *
-	 * @param string $key Discount data to retrieve
-	 * @param  string $context View or edit context.
-	 * @return mixed Value of the given invoice property (if set).
-	 */
-	public function get( $key, $context = 'view' ) {
+    /**
+     * Retrieves the default status.
+     *
+     * @since 1.0.19
+     * @return string
+     */
+    public function get_default_status() {
+
+        $type   = $this->get_type();
+        $status = "wpi-$type-pending";
+        return str_replace( '-invoice', '', $status );
+
+    }
+
+    /**
+     * Magic method for accessing invoice properties.
+     *
+     * @since 1.0.15
+     * @access public
+     *
+     * @param string $key Discount data to retrieve
+     * @param  string $context View or edit context.
+     * @return mixed Value of the given invoice property (if set).
+     */
+    public function get( $key, $context = 'view' ) {
         return $this->get_prop( $key, $context );
-	}
+    }
 
     /*
 	|--------------------------------------------------------------------------
@@ -1956,130 +1956,130 @@ 
     */
 
     /**
-	 * Magic method for setting invoice properties.
-	 *
-	 * @since 1.0.19
-	 * @access public
-	 *
-	 * @param string $key Discount data to retrieve
-	 * @param  mixed $value new value.
-	 * @return mixed Value of the given invoice property (if set).
-	 */
-	public function set( $key, $value ) {
+     * Magic method for setting invoice properties.
+     *
+     * @since 1.0.19
+     * @access public
+     *
+     * @param string $key Discount data to retrieve
+     * @param  mixed $value new value.
+     * @return mixed Value of the given invoice property (if set).
+     */
+    public function set( $key, $value ) {
 
         $setter = "set_$key";
         if ( is_callable( array( $this, $setter ) ) ) {
             $this->{$setter}( $value );
         }
 
-	}
+    }
 
-	/**
-	 * Sets item status.
-	 *
-	 * @since 1.0.19
-	 * @param string $new_status    New status.
-	 * @param string $note          Optional note to add.
-	 * @param bool   $manual_update Is this a manual status change?.
-	 * @return array details of change.
-	 */
-	public function set_status( $new_status, $note = '', $manual_update = false ) {
-		$old_status = $this->get_status();
+    /**
+     * Sets item status.
+     *
+     * @since 1.0.19
+     * @param string $new_status    New status.
+     * @param string $note          Optional note to add.
+     * @param bool   $manual_update Is this a manual status change?.
+     * @return array details of change.
+     */
+    public function set_status( $new_status, $note = '', $manual_update = false ) {
+        $old_status = $this->get_status();
 
-		$statuses = $this->get_all_statuses();
+        $statuses = $this->get_all_statuses();
 
-		if ( isset( $statuses[ 'draft' ] ) ) {
-			unset( $statuses[ 'draft' ] );
-		}
+        if ( isset( $statuses[ 'draft' ] ) ) {
+            unset( $statuses[ 'draft' ] );
+        }
 
-		$this->set_prop( 'status', $new_status );
+        $this->set_prop( 'status', $new_status );
 
-		// If setting the status, ensure it's set to a valid status.
-		if ( true === $this->object_read ) {
+        // If setting the status, ensure it's set to a valid status.
+        if ( true === $this->object_read ) {
 
-			// Only allow valid new status.
-			if ( ! array_key_exists( $new_status, $statuses ) ) {
-				$new_status = $this->get_default_status();
-			}
+            // Only allow valid new status.
+            if ( ! array_key_exists( $new_status, $statuses ) ) {
+                $new_status = $this->get_default_status();
+            }
 
-			// If the old status is set but unknown (e.g. draft) assume its pending for action usage.
-			if ( $old_status && ! array_key_exists( $new_status, $statuses ) ) {
-				$old_status = $this->get_default_status();
-			}
+            // If the old status is set but unknown (e.g. draft) assume its pending for action usage.
+            if ( $old_status && ! array_key_exists( $new_status, $statuses ) ) {
+                $old_status = $this->get_default_status();
+            }
 
-			// Paid - Renewal (i.e when duplicating a parent invoice )
-			if ( $new_status == 'wpi-pending' && $old_status == 'publish' && ! $this->get_id() ) {
-				$old_status = 'wpi-pending';
-			}
+            // Paid - Renewal (i.e when duplicating a parent invoice )
+            if ( $new_status == 'wpi-pending' && $old_status == 'publish' && ! $this->get_id() ) {
+                $old_status = 'wpi-pending';
+            }
 
-			if ( $old_status !== $new_status ) {
-				$this->status_transition = array(
-					'from'   => ! empty( $this->status_transition['from'] ) ? $this->status_transition['from'] : $old_status,
-					'to'     => $new_status,
-					'note'   => $note,
-					'manual' => (bool) $manual_update,
-				);
+            if ( $old_status !== $new_status ) {
+                $this->status_transition = array(
+                    'from'   => ! empty( $this->status_transition['from'] ) ? $this->status_transition['from'] : $old_status,
+                    'to'     => $new_status,
+                    'note'   => $note,
+                    'manual' => (bool) $manual_update,
+                );
 
-				if ( $manual_update ) {
-					do_action( 'getpaid_' . $this->object_type .'_edit_status', $this->get_id(), $new_status );
-				}
+                if ( $manual_update ) {
+                    do_action( 'getpaid_' . $this->object_type .'_edit_status', $this->get_id(), $new_status );
+                }
 
-				$this->maybe_set_date_paid();
+                $this->maybe_set_date_paid();
 
-			}
+            }
 
-		}
+        }
 
-		return array(
-			'from' => $old_status,
-			'to'   => $new_status,
-		);
-	}
+        return array(
+            'from' => $old_status,
+            'to'   => $new_status,
+        );
+    }
 
-	/**
-	 * Maybe set date paid.
-	 *
-	 * Sets the date paid variable when transitioning to the payment complete
-	 * order status.
-	 *
-	 * @since 1.0.19
-	 */
-	public function maybe_set_date_paid() {
+    /**
+     * Maybe set date paid.
+     *
+     * Sets the date paid variable when transitioning to the payment complete
+     * order status.
+     *
+     * @since 1.0.19
+     */
+    public function maybe_set_date_paid() {
 
-		if ( ! $this->get_date_completed( 'edit' ) && $this->is_paid() ) {
-			$this->set_date_completed( current_time( 'mysql' ) );
-		}
-	}
+        if ( ! $this->get_date_completed( 'edit' ) && $this->is_paid() ) {
+            $this->set_date_completed( current_time( 'mysql' ) );
+        }
+    }
 
     /**
-	 * Set parent invoice ID.
-	 *
-	 * @since 1.0.19
-	 */
-	public function set_parent_id( $value ) {
-		if ( $value && ( $value === $this->get_id() ) ) {
-			return;
-		}
-		$this->set_prop( 'parent_id', absint( $value ) );
+     * Set parent invoice ID.
+     *
+     * @since 1.0.19
+     */
+    public function set_parent_id( $value ) {
+        if ( $value && ( $value === $this->get_id() ) ) {
+            return;
+        }
+        $this->set_prop( 'parent_id', absint( $value ) );
     }
 
     /**
-	 * Set plugin version when the invoice was created.
-	 *
-	 * @since 1.0.19
-	 */
-	public function set_version( $value ) {
-		$this->set_prop( 'version', $value );
+     * Set plugin version when the invoice was created.
+     *
+     * @since 1.0.19
+     */
+    public function set_version( $value ) {
+        $this->set_prop( 'version', $value );
     }
-
-    /**
-	 * Set date when the invoice was created.
-	 *
-	 * @since 1.0.19
-	 * @param string $value Value to set.
+
+    /**
+     * Set date when the invoice was created.
+     *
+     * @since 1.0.19
+     * @param string $value Value to set.
      * @return bool Whether or not the date was set.
-	 */
-	public function set_date_created( $value ) {
+     */
+    public function set_date_created( $value ) {
         $date = strtotime( $value );
 
         if ( $date && $value !== '0000-00-00 00:00:00' ) {
@@ -2087,19 +2087,19 @@ 
             return true;
         }
 
-		$this->set_prop( 'date_created', '' );
-		return false;
+        $this->set_prop( 'date_created', '' );
+        return false;
 
     }
 
     /**
-	 * Set date invoice due date.
-	 *
-	 * @since 1.0.19
-	 * @param string $value Value to set.
+     * Set date invoice due date.
+     *
+     * @since 1.0.19
+     * @param string $value Value to set.
      * @return bool Whether or not the date was set.
-	 */
-	public function set_due_date( $value ) {
+     */
+    public function set_due_date( $value ) {
         $date = strtotime( $value );
 
         if ( $date && $value !== '0000-00-00 00:00:00' ) {
@@ -2107,29 +2107,29 @@ 
             return true;
         }
 
-		$this->set_prop( 'due_date', '' );
+        $this->set_prop( 'due_date', '' );
         return false;
 
     }
 
     /**
-	 * Alias of self::set_due_date().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value New name.
-	 */
-	public function set_date_due( $value ) {
-		$this->set_due_date( $value );
+     * Alias of self::set_due_date().
+     *
+     * @since 1.0.19
+     * @param  string $value New name.
+     */
+    public function set_date_due( $value ) {
+        $this->set_due_date( $value );
     }
 
     /**
-	 * Set date invoice was completed.
-	 *
-	 * @since 1.0.19
-	 * @param string $value Value to set.
+     * Set date invoice was completed.
+     *
+     * @since 1.0.19
+     * @param string $value Value to set.
      * @return bool Whether or not the date was set.
-	 */
-	public function set_completed_date( $value ) {
+     */
+    public function set_completed_date( $value ) {
         $date = strtotime( $value );
 
         if ( $date && $value !== '0000-00-00 00:00:00'  ) {
@@ -2137,29 +2137,29 @@ 
             return true;
         }
 
-		$this->set_prop( 'completed_date', '' );
+        $this->set_prop( 'completed_date', '' );
         return false;
 
     }
 
     /**
-	 * Alias of self::set_completed_date().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value New name.
-	 */
-	public function set_date_completed( $value ) {
-		$this->set_completed_date( $value );
+     * Alias of self::set_completed_date().
+     *
+     * @since 1.0.19
+     * @param  string $value New name.
+     */
+    public function set_date_completed( $value ) {
+        $this->set_completed_date( $value );
     }
 
     /**
-	 * Set date when the invoice was last modified.
-	 *
-	 * @since 1.0.19
-	 * @param string $value Value to set.
+     * Set date when the invoice was last modified.
+     *
+     * @since 1.0.19
+     * @param string $value Value to set.
      * @return bool Whether or not the date was set.
-	 */
-	public function set_date_modified( $value ) {
+     */
+    public function set_date_modified( $value ) {
         $date = strtotime( $value );
 
         if ( $date && $value !== '0000-00-00 00:00:00' ) {
@@ -2167,813 +2167,813 @@ 
             return true;
         }
 
-		$this->set_prop( 'date_modified', '' );
+        $this->set_prop( 'date_modified', '' );
         return false;
 
     }
 
     /**
-	 * Set the invoice number.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value New number.
-	 */
-	public function set_number( $value ) {
+     * Set the invoice number.
+     *
+     * @since 1.0.19
+     * @param  string $value New number.
+     */
+    public function set_number( $value ) {
         $number = sanitize_text_field( $value );
-		$this->set_prop( 'number', $number );
+        $this->set_prop( 'number', $number );
     }
 
     /**
-	 * Set the invoice type.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value Type.
-	 */
-	public function set_type( $value ) {
+     * Set the invoice type.
+     *
+     * @since 1.0.19
+     * @param  string $value Type.
+     */
+    public function set_type( $value ) {
         $type = sanitize_text_field( str_replace( 'wpi_', '', $value ) );
-		$this->set_prop( 'type', $type );
-	}
+        $this->set_prop( 'type', $type );
+    }
 
     /**
-	 * Set the invoice post type.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value Post type.
-	 */
-	public function set_post_type( $value ) {
+     * Set the invoice post type.
+     *
+     * @since 1.0.19
+     * @param  string $value Post type.
+     */
+    public function set_post_type( $value ) {
         if ( getpaid_is_invoice_post_type( $value ) ) {
-			$this->set_type( $value );
+            $this->set_type( $value );
             $this->set_prop( 'post_type', $value );
         }
     }
 
     /**
-	 * Set the invoice key.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value New key.
-	 */
-	public function set_key( $value ) {
+     * Set the invoice key.
+     *
+     * @since 1.0.19
+     * @param  string $value New key.
+     */
+    public function set_key( $value ) {
         $key = sanitize_text_field( $value );
-		$this->set_prop( 'key', $key );
+        $this->set_prop( 'key', $key );
     }
 
     /**
-	 * Set the invoice mode.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value mode.
-	 */
-	public function set_mode( $value ) {
+     * Set the invoice mode.
+     *
+     * @since 1.0.19
+     * @param  string $value mode.
+     */
+    public function set_mode( $value ) {
         if ( in_array( $value, array( 'live', 'test' ) ) ) {
             $this->set_prop( 'mode', $value );
         }
     }
 
     /**
-	 * Set the invoice path.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value path.
-	 */
-	public function set_path( $value ) {
+     * Set the invoice path.
+     *
+     * @since 1.0.19
+     * @param  string $value path.
+     */
+    public function set_path( $value ) {
         $this->set_prop( 'path', $value );
     }
 
     /**
-	 * Set the invoice name.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value New name.
-	 */
-	public function set_name( $value ) {
+     * Set the invoice name.
+     *
+     * @since 1.0.19
+     * @param  string $value New name.
+     */
+    public function set_name( $value ) {
         $name = sanitize_text_field( $value );
-		$this->set_prop( 'name', $name );
+        $this->set_prop( 'name', $name );
     }
 
     /**
-	 * Alias of self::set_name().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value New name.
-	 */
-	public function set_title( $value ) {
-		$this->set_name( $value );
+     * Alias of self::set_name().
+     *
+     * @since 1.0.19
+     * @param  string $value New name.
+     */
+    public function set_title( $value ) {
+        $this->set_name( $value );
     }
 
     /**
-	 * Set the invoice description.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value New description.
-	 */
-	public function set_description( $value ) {
+     * Set the invoice description.
+     *
+     * @since 1.0.19
+     * @param  string $value New description.
+     */
+    public function set_description( $value ) {
         $description = wp_kses_post( $value );
-		$this->set_prop( 'description', $description );
+        $this->set_prop( 'description', $description );
+    }
+
+    /**
+     * Alias of self::set_description().
+     *
+     * @since 1.0.19
+     * @param  string $value New description.
+     */
+    public function set_excerpt( $value ) {
+        $this->set_description( $value );
+    }
+
+    /**
+     * Alias of self::set_description().
+     *
+     * @since 1.0.19
+     * @param  string $value New description.
+     */
+    public function set_summary( $value ) {
+        $this->set_description( $value );
+    }
+
+    /**
+     * Set the receiver of the invoice.
+     *
+     * @since 1.0.19
+     * @param  int $value New author.
+     */
+    public function set_author( $value ) {
+        $user = get_user_by( 'id', (int) $value );
+
+        if ( $user && $user->ID ) {
+            $this->set_prop( 'author', $user->ID );
+            $this->set_prop( 'email', $user->user_email );
+        }
+
+    }
+
+    /**
+     * Alias of self::set_author().
+     *
+     * @since 1.0.19
+     * @param  int $value New user id.
+     */
+    public function set_user_id( $value ) {
+        $this->set_author( $value );
+    }
+
+    /**
+     * Alias of self::set_author().
+     *
+     * @since 1.0.19
+     * @param  int $value New user id.
+     */
+    public function set_customer_id( $value ) {
+        $this->set_author( $value );
+    }
+
+    /**
+     * Set the customer's ip.
+     *
+     * @since 1.0.19
+     * @param  string $value ip address.
+     */
+    public function set_ip( $value ) {
+        $this->set_prop( 'ip', $value );
+    }
+
+    /**
+     * Alias of self::set_ip().
+     *
+     * @since 1.0.19
+     * @param  string $value ip address.
+     */
+    public function set_user_ip( $value ) {
+        $this->set_ip( $value );
+    }
+
+    /**
+     * Set the customer's first name.
+     *
+     * @since 1.0.19
+     * @param  string $value first name.
+     */
+    public function set_first_name( $value ) {
+        $this->set_prop( 'first_name', $value );
+    }
+
+    /**
+     * Alias of self::set_first_name().
+     *
+     * @since 1.0.19
+     * @param  string $value first name.
+     */
+    public function set_user_first_name( $value ) {
+        $this->set_first_name( $value );
+    }
+
+    /**
+     * Alias of self::set_first_name().
+     *
+     * @since 1.0.19
+     * @param  string $value first name.
+     */
+    public function set_customer_first_name( $value ) {
+        $this->set_first_name( $value );
+    }
+
+    /**
+     * Set the customer's last name.
+     *
+     * @since 1.0.19
+     * @param  string $value last name.
+     */
+    public function set_last_name( $value ) {
+        $this->set_prop( 'last_name', $value );
+    }
+
+    /**
+     * Alias of self::set_last_name().
+     *
+     * @since 1.0.19
+     * @param  string $value last name.
+     */
+    public function set_user_last_name( $value ) {
+        $this->set_last_name( $value );
+    }
+
+    /**
+     * Alias of self::set_last_name().
+     *
+     * @since 1.0.19
+     * @param  string $value last name.
+     */
+    public function set_customer_last_name( $value ) {
+        $this->set_last_name( $value );
+    }
+
+    /**
+     * Set the customer's phone number.
+     *
+     * @since 1.0.19
+     * @param  string $value phone.
+     */
+    public function set_phone( $value ) {
+        $this->set_prop( 'phone', $value );
     }
 
     /**
-	 * Alias of self::set_description().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value New description.
-	 */
-	public function set_excerpt( $value ) {
-		$this->set_description( $value );
+     * Alias of self::set_phone().
+     *
+     * @since 1.0.19
+     * @param  string $value phone.
+     */
+    public function set_user_phone( $value ) {
+        $this->set_phone( $value );
     }
 
     /**
-	 * Alias of self::set_description().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value New description.
-	 */
-	public function set_summary( $value ) {
-		$this->set_description( $value );
+     * Alias of self::set_phone().
+     *
+     * @since 1.0.19
+     * @param  string $value phone.
+     */
+    public function set_customer_phone( $value ) {
+        $this->set_phone( $value );
     }
 
     /**
-	 * Set the receiver of the invoice.
-	 *
-	 * @since 1.0.19
-	 * @param  int $value New author.
-	 */
-	public function set_author( $value ) {
-		$user = get_user_by( 'id', (int) $value );
+     * Alias of self::set_phone().
+     *
+     * @since 1.0.19
+     * @param  string $value phone.
+     */
+    public function set_phone_number( $value ) {
+        $this->set_phone( $value );
+    }
 
-		if ( $user && $user->ID ) {
-			$this->set_prop( 'author', $user->ID );
-			$this->set_prop( 'email', $user->user_email );
-		}
+    /**
+     * Set the customer's email address.
+     *
+     * @since 1.0.19
+     * @param  string $value email address.
+     */
+    public function set_email( $value ) {
+        $this->set_prop( 'email', $value );
+    }
 
+    /**
+     * Alias of self::set_email().
+     *
+     * @since 1.0.19
+     * @param  string $value email address.
+     */
+    public function set_user_email( $value ) {
+        $this->set_email( $value );
     }
 
     /**
-	 * Alias of self::set_author().
-	 *
-	 * @since 1.0.19
-	 * @param  int $value New user id.
-	 */
-	public function set_user_id( $value ) {
-		$this->set_author( $value );
+     * Alias of self::set_email().
+     *
+     * @since 1.0.19
+     * @param  string $value email address.
+     */
+    public function set_email_address( $value ) {
+        $this->set_email( $value );
     }
 
     /**
-	 * Alias of self::set_author().
-	 *
-	 * @since 1.0.19
-	 * @param  int $value New user id.
-	 */
-	public function set_customer_id( $value ) {
-		$this->set_author( $value );
+     * Alias of self::set_email().
+     *
+     * @since 1.0.19
+     * @param  string $value email address.
+     */
+    public function set_customer_email( $value ) {
+        $this->set_email( $value );
     }
 
     /**
-	 * Set the customer's ip.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value ip address.
-	 */
-	public function set_ip( $value ) {
-		$this->set_prop( 'ip', $value );
+     * Set the customer's country.
+     *
+     * @since 1.0.19
+     * @param  string $value country.
+     */
+    public function set_country( $value ) {
+        $this->set_prop( 'country', $value );
     }
 
     /**
-	 * Alias of self::set_ip().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value ip address.
-	 */
-	public function set_user_ip( $value ) {
-		$this->set_ip( $value );
+     * Alias of self::set_country().
+     *
+     * @since 1.0.19
+     * @param  string $value country.
+     */
+    public function set_user_country( $value ) {
+        $this->set_country( $value );
     }
 
     /**
-	 * Set the customer's first name.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value first name.
-	 */
-	public function set_first_name( $value ) {
-		$this->set_prop( 'first_name', $value );
+     * Alias of self::set_country().
+     *
+     * @since 1.0.19
+     * @param  string $value country.
+     */
+    public function set_customer_country( $value ) {
+        $this->set_country( $value );
     }
 
     /**
-	 * Alias of self::set_first_name().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value first name.
-	 */
-	public function set_user_first_name( $value ) {
-		$this->set_first_name( $value );
+     * Set the customer's state.
+     *
+     * @since 1.0.19
+     * @param  string $value state.
+     */
+    public function set_state( $value ) {
+        $this->set_prop( 'state', $value );
     }
 
     /**
-	 * Alias of self::set_first_name().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value first name.
-	 */
-	public function set_customer_first_name( $value ) {
-		$this->set_first_name( $value );
+     * Alias of self::set_state().
+     *
+     * @since 1.0.19
+     * @param  string $value state.
+     */
+    public function set_user_state( $value ) {
+        $this->set_state( $value );
     }
 
     /**
-	 * Set the customer's last name.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value last name.
-	 */
-	public function set_last_name( $value ) {
-		$this->set_prop( 'last_name', $value );
+     * Alias of self::set_state().
+     *
+     * @since 1.0.19
+     * @param  string $value state.
+     */
+    public function set_customer_state( $value ) {
+        $this->set_state( $value );
     }
 
     /**
-	 * Alias of self::set_last_name().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value last name.
-	 */
-	public function set_user_last_name( $value ) {
-		$this->set_last_name( $value );
+     * Set the customer's city.
+     *
+     * @since 1.0.19
+     * @param  string $value city.
+     */
+    public function set_city( $value ) {
+        $this->set_prop( 'city', $value );
     }
 
     /**
-	 * Alias of self::set_last_name().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value last name.
-	 */
-	public function set_customer_last_name( $value ) {
-		$this->set_last_name( $value );
+     * Alias of self::set_city().
+     *
+     * @since 1.0.19
+     * @param  string $value city.
+     */
+    public function set_user_city( $value ) {
+        $this->set_city( $value );
     }
 
     /**
-	 * Set the customer's phone number.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value phone.
-	 */
-	public function set_phone( $value ) {
-		$this->set_prop( 'phone', $value );
+     * Alias of self::set_city().
+     *
+     * @since 1.0.19
+     * @param  string $value city.
+     */
+    public function set_customer_city( $value ) {
+        $this->set_city( $value );
     }
 
     /**
-	 * Alias of self::set_phone().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value phone.
-	 */
-	public function set_user_phone( $value ) {
-		$this->set_phone( $value );
+     * Set the customer's zip code.
+     *
+     * @since 1.0.19
+     * @param  string $value zip.
+     */
+    public function set_zip( $value ) {
+        $this->set_prop( 'zip', $value );
     }
 
     /**
-	 * Alias of self::set_phone().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value phone.
-	 */
-	public function set_customer_phone( $value ) {
-		$this->set_phone( $value );
+     * Alias of self::set_zip().
+     *
+     * @since 1.0.19
+     * @param  string $value zip.
+     */
+    public function set_user_zip( $value ) {
+        $this->set_zip( $value );
     }
 
     /**
-	 * Alias of self::set_phone().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value phone.
-	 */
-	public function set_phone_number( $value ) {
-		$this->set_phone( $value );
+     * Alias of self::set_zip().
+     *
+     * @since 1.0.19
+     * @param  string $value zip.
+     */
+    public function set_customer_zip( $value ) {
+        $this->set_zip( $value );
     }
 
     /**
-	 * Set the customer's email address.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value email address.
-	 */
-	public function set_email( $value ) {
-		$this->set_prop( 'email', $value );
+     * Set the customer's company.
+     *
+     * @since 1.0.19
+     * @param  string $value company.
+     */
+    public function set_company( $value ) {
+        $this->set_prop( 'company', $value );
     }
 
     /**
-	 * Alias of self::set_email().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value email address.
-	 */
-	public function set_user_email( $value ) {
-		$this->set_email( $value );
+     * Alias of self::set_company().
+     *
+     * @since 1.0.19
+     * @param  string $value company.
+     */
+    public function set_user_company( $value ) {
+        $this->set_company( $value );
     }
 
     /**
-	 * Alias of self::set_email().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value email address.
-	 */
-	public function set_email_address( $value ) {
-		$this->set_email( $value );
+     * Alias of self::set_company().
+     *
+     * @since 1.0.19
+     * @param  string $value company.
+     */
+    public function set_customer_company( $value ) {
+        $this->set_company( $value );
     }
 
     /**
-	 * Alias of self::set_email().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value email address.
-	 */
-	public function set_customer_email( $value ) {
-		$this->set_email( $value );
+     * Set the customer's company id.
+     *
+     * @since 1.0.19
+     * @param  string $value company id.
+     */
+    public function set_company_id( $value ) {
+        $this->set_prop( 'company_id', $value );
     }
 
     /**
-	 * Set the customer's country.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value country.
-	 */
-	public function set_country( $value ) {
-		$this->set_prop( 'country', $value );
+     * Set the customer's var number.
+     *
+     * @since 1.0.19
+     * @param  string $value var number.
+     */
+    public function set_vat_number( $value ) {
+        $this->set_prop( 'vat_number', $value );
     }
 
     /**
-	 * Alias of self::set_country().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value country.
-	 */
-	public function set_user_country( $value ) {
-		$this->set_country( $value );
+     * Alias of self::set_vat_number().
+     *
+     * @since 1.0.19
+     * @param  string $value var number.
+     */
+    public function set_user_vat_number( $value ) {
+        $this->set_vat_number( $value );
     }
 
     /**
-	 * Alias of self::set_country().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value country.
-	 */
-	public function set_customer_country( $value ) {
-		$this->set_country( $value );
+     * Alias of self::set_vat_number().
+     *
+     * @since 1.0.19
+     * @param  string $value var number.
+     */
+    public function set_customer_vat_number( $value ) {
+        $this->set_vat_number( $value );
     }
 
     /**
-	 * Set the customer's state.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value state.
-	 */
-	public function set_state( $value ) {
-		$this->set_prop( 'state', $value );
+     * Set the customer's vat rate.
+     *
+     * @since 1.0.19
+     * @param  string $value var rate.
+     */
+    public function set_vat_rate( $value ) {
+        $this->set_prop( 'vat_rate', $value );
     }
 
     /**
-	 * Alias of self::set_state().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value state.
-	 */
-	public function set_user_state( $value ) {
-		$this->set_state( $value );
+     * Alias of self::set_vat_rate().
+     *
+     * @since 1.0.19
+     * @param  string $value var number.
+     */
+    public function set_user_vat_rate( $value ) {
+        $this->set_vat_rate( $value );
     }
 
     /**
-	 * Alias of self::set_state().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value state.
-	 */
-	public function set_customer_state( $value ) {
-		$this->set_state( $value );
+     * Alias of self::set_vat_rate().
+     *
+     * @since 1.0.19
+     * @param  string $value var number.
+     */
+    public function set_customer_vat_rate( $value ) {
+        $this->set_vat_rate( $value );
     }
 
     /**
-	 * Set the customer's city.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value city.
-	 */
-	public function set_city( $value ) {
-		$this->set_prop( 'city', $value );
+     * Set the customer's address.
+     *
+     * @since 1.0.19
+     * @param  string $value address.
+     */
+    public function set_address( $value ) {
+        $this->set_prop( 'address', $value );
     }
 
     /**
-	 * Alias of self::set_city().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value city.
-	 */
-	public function set_user_city( $value ) {
-		$this->set_city( $value );
+     * Alias of self::set_address().
+     *
+     * @since 1.0.19
+     * @param  string $value address.
+     */
+    public function set_user_address( $value ) {
+        $this->set_address( $value );
     }
 
     /**
-	 * Alias of self::set_city().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value city.
-	 */
-	public function set_customer_city( $value ) {
-		$this->set_city( $value );
+     * Alias of self::set_address().
+     *
+     * @since 1.0.19
+     * @param  string $value address.
+     */
+    public function set_customer_address( $value ) {
+        $this->set_address( $value );
     }
 
     /**
-	 * Set the customer's zip code.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value zip.
-	 */
-	public function set_zip( $value ) {
-		$this->set_prop( 'zip', $value );
+     * Set whether the customer has viewed the invoice or not.
+     *
+     * @since 1.0.19
+     * @param  int|bool $value confirmed.
+     */
+    public function set_is_viewed( $value ) {
+        $this->set_prop( 'is_viewed', $value );
     }
 
     /**
-	 * Alias of self::set_zip().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value zip.
-	 */
-	public function set_user_zip( $value ) {
-		$this->set_zip( $value );
+     * Set extra email recipients.
+     *
+     * @since 1.0.19
+     * @param  string $value email recipients.
+     */
+    public function set_email_cc( $value ) {
+        $this->set_prop( 'email_cc', $value );
     }
 
     /**
-	 * Alias of self::set_zip().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value zip.
-	 */
-	public function set_customer_zip( $value ) {
-		$this->set_zip( $value );
+     * Set the invoice template.
+     *
+     * @since 1.0.19
+     * @param  string $value template.
+     */
+    public function set_template( $value ) {
+        if ( in_array( $value, array( 'quantity', 'hours', 'amount' ) ) ) {
+            $this->set_prop( 'template', $value );
+        }
     }
 
     /**
-	 * Set the customer's company.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value company.
-	 */
-	public function set_company( $value ) {
-		$this->set_prop( 'company', $value );
+     * Set the invoice source.
+     *
+     * @since 1.0.19
+     * @param  string $value source.
+     * @deprecated
+     */
+    public function created_via( $value ) {
+        $this->set_created_via( sanitize_text_field( $value ) );
     }
 
     /**
-	 * Alias of self::set_company().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value company.
-	 */
-	public function set_user_company( $value ) {
-		$this->set_company( $value );
+     * Set the invoice source.
+     *
+     * @since 1.0.19
+     * @param  string $value source.
+     */
+    public function set_created_via( $value ) {
+        $this->set_prop( 'created_via', sanitize_text_field( $value ) );
     }
 
     /**
-	 * Alias of self::set_company().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value company.
-	 */
-	public function set_customer_company( $value ) {
-		$this->set_company( $value );
-    }
-
-	/**
-	 * Set the customer's company id.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value company id.
-	 */
-	public function set_company_id( $value ) {
-		$this->set_prop( 'company_id', $value );
+     * Set the customer's address confirmed status.
+     *
+     * @since 1.0.19
+     * @param  int|bool $value confirmed.
+     */
+    public function set_address_confirmed( $value ) {
+        $this->set_prop( 'address_confirmed', $value );
     }
 
     /**
-	 * Set the customer's var number.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value var number.
-	 */
-	public function set_vat_number( $value ) {
-		$this->set_prop( 'vat_number', $value );
+     * Alias of self::set_address_confirmed().
+     *
+     * @since 1.0.19
+     * @param  int|bool $value confirmed.
+     */
+    public function set_user_address_confirmed( $value ) {
+        $this->set_address_confirmed( $value );
     }
 
     /**
-	 * Alias of self::set_vat_number().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value var number.
-	 */
-	public function set_user_vat_number( $value ) {
-		$this->set_vat_number( $value );
+     * Alias of self::set_address_confirmed().
+     *
+     * @since 1.0.19
+     * @param  int|bool $value confirmed.
+     */
+    public function set_customer_address_confirmed( $value ) {
+        $this->set_address_confirmed( $value );
     }
 
     /**
-	 * Alias of self::set_vat_number().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value var number.
-	 */
-	public function set_customer_vat_number( $value ) {
-		$this->set_vat_number( $value );
+     * Set the shipping fee
+     *
+     * @since 1.0.19
+     * @param  float $value shipping amount.
+     */
+    public function set_shipping( $value ) {
+
+        if ( ! is_numeric( $value ) ) {
+            return $this->set_prop( 'shipping', null );
+        }
+
+        $this->set_prop( 'shipping', max( 0, floatval( $value ) ) );
     }
 
     /**
-	 * Set the customer's vat rate.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value var rate.
-	 */
-	public function set_vat_rate( $value ) {
-		$this->set_prop( 'vat_rate', $value );
+     * Set the invoice sub total.
+     *
+     * @since 1.0.19
+     * @param  float $value sub total.
+     */
+    public function set_subtotal( $value ) {
+        $this->set_prop( 'subtotal', max( 0, $value ) );
     }
 
-    /**
-	 * Alias of self::set_vat_rate().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value var number.
-	 */
-	public function set_user_vat_rate( $value ) {
-		$this->set_vat_rate( $value );
-    }
-
-    /**
-	 * Alias of self::set_vat_rate().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value var number.
-	 */
-	public function set_customer_vat_rate( $value ) {
-		$this->set_vat_rate( $value );
-    }
-
-    /**
-	 * Set the customer's address.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value address.
-	 */
-	public function set_address( $value ) {
-		$this->set_prop( 'address', $value );
-    }
-
-    /**
-	 * Alias of self::set_address().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value address.
-	 */
-	public function set_user_address( $value ) {
-		$this->set_address( $value );
-    }
-
-    /**
-	 * Alias of self::set_address().
-	 *
-	 * @since 1.0.19
-	 * @param  string $value address.
-	 */
-	public function set_customer_address( $value ) {
-		$this->set_address( $value );
-    }
-
-    /**
-	 * Set whether the customer has viewed the invoice or not.
-	 *
-	 * @since 1.0.19
-	 * @param  int|bool $value confirmed.
-	 */
-	public function set_is_viewed( $value ) {
-		$this->set_prop( 'is_viewed', $value );
-	}
-
-	/**
-	 * Set extra email recipients.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value email recipients.
-	 */
-	public function set_email_cc( $value ) {
-		$this->set_prop( 'email_cc', $value );
-	}
-
-	/**
-	 * Set the invoice template.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value template.
-	 */
-	public function set_template( $value ) {
-		if ( in_array( $value, array( 'quantity', 'hours', 'amount' ) ) ) {
-			$this->set_prop( 'template', $value );
-		}
-	}
-
-	/**
-	 * Set the invoice source.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value source.
-	 * @deprecated
-	 */
-	public function created_via( $value ) {
-		$this->set_created_via( sanitize_text_field( $value ) );
-	}
-
-	/**
-	 * Set the invoice source.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value source.
-	 */
-	public function set_created_via( $value ) {
-		$this->set_prop( 'created_via', sanitize_text_field( $value ) );
-	}
-
-	/**
-	 * Set the customer's address confirmed status.
-	 *
-	 * @since 1.0.19
-	 * @param  int|bool $value confirmed.
-	 */
-	public function set_address_confirmed( $value ) {
-		$this->set_prop( 'address_confirmed', $value );
-    }
-
-    /**
-	 * Alias of self::set_address_confirmed().
-	 *
-	 * @since 1.0.19
-	 * @param  int|bool $value confirmed.
-	 */
-	public function set_user_address_confirmed( $value ) {
-		$this->set_address_confirmed( $value );
-    }
-
-    /**
-	 * Alias of self::set_address_confirmed().
-	 *
-	 * @since 1.0.19
-	 * @param  int|bool $value confirmed.
-	 */
-	public function set_customer_address_confirmed( $value ) {
-		$this->set_address_confirmed( $value );
-    }
-
-    /**
-	 * Set the shipping fee
-	 *
-	 * @since 1.0.19
-	 * @param  float $value shipping amount.
-	 */
-	public function set_shipping( $value ) {
-
-		if ( ! is_numeric( $value ) ) {
-			return $this->set_prop( 'shipping', null );
-		}
-
-		$this->set_prop( 'shipping', max( 0, floatval( $value ) ) );
-	}
-
-	/**
-	 * Set the invoice sub total.
-	 *
-	 * @since 1.0.19
-	 * @param  float $value sub total.
-	 */
-	public function set_subtotal( $value ) {
-		$this->set_prop( 'subtotal', max( 0, $value ) );
-	}
-
-	/**
-	 * Set the invoice total.
-	 *
-	 * @since 1.0.19
-	 * @param  float $value sub total.
-	 */
-	public function set_total( $value ) {
-		$this->set_prop( 'total', max( 0, $value ) );
+    /**
+     * Set the invoice total.
+     *
+     * @since 1.0.19
+     * @param  float $value sub total.
+     */
+    public function set_total( $value ) {
+        $this->set_prop( 'total', max( 0, $value ) );
     }
 
     /**
-	 * Set the invoice discount amount.
-	 *
-	 * @since 1.0.19
-	 * @param  float $value discount total.
-	 */
-	public function set_total_discount( $value ) {
-		$this->set_prop( 'total_discount', max( 0, $value ) );
+     * Set the invoice discount amount.
+     *
+     * @since 1.0.19
+     * @param  float $value discount total.
+     */
+    public function set_total_discount( $value ) {
+        $this->set_prop( 'total_discount', max( 0, $value ) );
     }
 
     /**
-	 * Alias of self::set_total_discount().
-	 *
-	 * @since 1.0.19
-	 * @param  float $value discount total.
-	 */
-	public function set_discount( $value ) {
-		$this->set_total_discount( $value );
+     * Alias of self::set_total_discount().
+     *
+     * @since 1.0.19
+     * @param  float $value discount total.
+     */
+    public function set_discount( $value ) {
+        $this->set_total_discount( $value );
     }
 
     /**
-	 * Set the invoice tax amount.
-	 *
-	 * @since 1.0.19
-	 * @param  float $value tax total.
-	 */
-	public function set_total_tax( $value ) {
-		$this->set_prop( 'total_tax', max( 0, $value ) );
+     * Set the invoice tax amount.
+     *
+     * @since 1.0.19
+     * @param  float $value tax total.
+     */
+    public function set_total_tax( $value ) {
+        $this->set_prop( 'total_tax', max( 0, $value ) );
     }
 
     /**
-	 * Alias of self::set_total_tax().
-	 *
-	 * @since 1.0.19
-	 * @param  float $value tax total.
-	 */
-	public function set_tax_total( $value ) {
-		$this->set_total_tax( $value );
+     * Alias of self::set_total_tax().
+     *
+     * @since 1.0.19
+     * @param  float $value tax total.
+     */
+    public function set_tax_total( $value ) {
+        $this->set_total_tax( $value );
     }
 
     /**
-	 * Set the invoice fees amount.
-	 *
-	 * @since 1.0.19
-	 * @param  float $value fees total.
-	 */
-	public function set_total_fees( $value ) {
-		$this->set_prop( 'total_fees', max( 0, $value ) );
+     * Set the invoice fees amount.
+     *
+     * @since 1.0.19
+     * @param  float $value fees total.
+     */
+    public function set_total_fees( $value ) {
+        $this->set_prop( 'total_fees', max( 0, $value ) );
     }
 
     /**
-	 * Alias of self::set_total_fees().
-	 *
-	 * @since 1.0.19
-	 * @param  float $value fees total.
-	 */
-	public function set_fees_total( $value ) {
-		$this->set_total_fees( $value );
+     * Alias of self::set_total_fees().
+     *
+     * @since 1.0.19
+     * @param  float $value fees total.
+     */
+    public function set_fees_total( $value ) {
+        $this->set_total_fees( $value );
     }
 
     /**
-	 * Set the invoice fees.
-	 *
-	 * @since 1.0.19
-	 * @param  array $value fees.
-	 */
-	public function set_fees( $value ) {
+     * Set the invoice fees.
+     *
+     * @since 1.0.19
+     * @param  array $value fees.
+     */
+    public function set_fees( $value ) {
 
-		if ( ! is_array( $value ) ) {
-			$value = array();
-		}
+        if ( ! is_array( $value ) ) {
+            $value = array();
+        }
 
-		$this->set_prop( 'fees', $value );
+        $this->set_prop( 'fees', $value );
 
     }
 
     /**
-	 * Set the invoice taxes.
-	 *
-	 * @since 1.0.19
-	 * @param  array $value taxes.
-	 */
-	public function set_taxes( $value ) {
+     * Set the invoice taxes.
+     *
+     * @since 1.0.19
+     * @param  array $value taxes.
+     */
+    public function set_taxes( $value ) {
 
-		if ( ! is_array( $value ) ) {
-			$value = array();
-		}
+        if ( ! is_array( $value ) ) {
+            $value = array();
+        }
 
-		$this->set_prop( 'taxes', $value );
+        $this->set_prop( 'taxes', $value );
 
     }
 
     /**
-	 * Set the invoice discounts.
-	 *
-	 * @since 1.0.19
-	 * @param  array $value discounts.
-	 */
-	public function set_discounts( $value ) {
+     * Set the invoice discounts.
+     *
+     * @since 1.0.19
+     * @param  array $value discounts.
+     */
+    public function set_discounts( $value ) {
 
-		if ( ! is_array( $value ) ) {
-			$value = array();
-		}
+        if ( ! is_array( $value ) ) {
+            $value = array();
+        }
 
-		$this->set_prop( 'discounts', $value );
+        $this->set_prop( 'discounts', $value );
     }
 
     /**
-	 * Set the invoice items.
-	 *
-	 * @since 1.0.19
-	 * @param  GetPaid_Form_Item[] $value items.
-	 */
-	public function set_items( $value ) {
+     * Set the invoice items.
+     *
+     * @since 1.0.19
+     * @param  GetPaid_Form_Item[] $value items.
+     */
+    public function set_items( $value ) {
 
         // Remove existing items.
         $this->set_prop( 'items', array() );
-		$this->recurring_item = null;
+        $this->recurring_item = null;
 
         // Ensure that we have an array.
         if ( ! is_array( $value ) ) {
@@ -2987,95 +2987,95 @@ 
     }
 
     /**
-	 * Set the payment form.
-	 *
-	 * @since 1.0.19
-	 * @param  int $value payment form.
-	 */
-	public function set_payment_form( $value ) {
-		$this->set_prop( 'payment_form', $value );
+     * Set the payment form.
+     *
+     * @since 1.0.19
+     * @param  int $value payment form.
+     */
+    public function set_payment_form( $value ) {
+        $this->set_prop( 'payment_form', $value );
     }
 
     /**
-	 * Set the submission id.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value submission id.
-	 */
-	public function set_submission_id( $value ) {
-		$this->set_prop( 'submission_id', $value );
+     * Set the submission id.
+     *
+     * @since 1.0.19
+     * @param  string $value submission id.
+     */
+    public function set_submission_id( $value ) {
+        $this->set_prop( 'submission_id', $value );
     }
 
     /**
-	 * Set the discount code.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value discount code.
-	 */
-	public function set_discount_code( $value ) {
-		$this->set_prop( 'discount_code', sanitize_text_field( $value ) );
+     * Set the discount code.
+     *
+     * @since 1.0.19
+     * @param  string $value discount code.
+     */
+    public function set_discount_code( $value ) {
+        $this->set_prop( 'discount_code', sanitize_text_field( $value ) );
     }
 
     /**
-	 * Set the gateway.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value gateway.
-	 */
-	public function set_gateway( $value ) {
-		$this->set_prop( 'gateway', $value );
+     * Set the gateway.
+     *
+     * @since 1.0.19
+     * @param  string $value gateway.
+     */
+    public function set_gateway( $value ) {
+        $this->set_prop( 'gateway', $value );
     }
 
     /**
-	 * Set the transaction id.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value transaction id.
-	 */
-	public function set_transaction_id( $value ) {
-		if ( ! empty( $value ) ) {
-			$this->set_prop( 'transaction_id', $value );
-		}
+     * Set the transaction id.
+     *
+     * @since 1.0.19
+     * @param  string $value transaction id.
+     */
+    public function set_transaction_id( $value ) {
+        if ( ! empty( $value ) ) {
+            $this->set_prop( 'transaction_id', $value );
+        }
     }
 
     /**
-	 * Set the currency id.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value currency id.
-	 */
-	public function set_currency( $value ) {
-		$this->set_prop( 'currency', $value );
+     * Set the currency id.
+     *
+     * @since 1.0.19
+     * @param  string $value currency id.
+     */
+    public function set_currency( $value ) {
+        $this->set_prop( 'currency', $value );
     }
 
-	/**
-	 * Set whether to disable taxes.
-	 *
-	 * @since 1.0.19
-	 * @param  bool $value value.
-	 */
-	public function set_disable_taxes( $value ) {
-		$this->set_prop( 'disable_taxes', (bool) $value );
-	}
+    /**
+     * Set whether to disable taxes.
+     *
+     * @since 1.0.19
+     * @param  bool $value value.
+     */
+    public function set_disable_taxes( $value ) {
+        $this->set_prop( 'disable_taxes', (bool) $value );
+    }
 
     /**
-	 * Set the subscription id.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value subscription id.
-	 */
-	public function set_subscription_id( $value ) {
-		$this->set_prop( 'subscription_id', $value );
-	}
+     * Set the subscription id.
+     *
+     * @since 1.0.19
+     * @param  string $value subscription id.
+     */
+    public function set_subscription_id( $value ) {
+        $this->set_prop( 'subscription_id', $value );
+    }
 	
-	/**
-	 * Set the remote subscription id.
-	 *
-	 * @since 1.0.19
-	 * @param  string $value subscription id.
-	 */
-	public function set_remote_subscription_id( $value ) {
-		$this->set_prop( 'remote_subscription_id', $value );
+    /**
+     * Set the remote subscription id.
+     *
+     * @since 1.0.19
+     * @param  string $value subscription id.
+     */
+    public function set_remote_subscription_id( $value ) {
+        $this->set_prop( 'remote_subscription_id', $value );
     }
 
     /*
@@ -3114,24 +3114,24 @@ 
      */
     public function is_taxable() {
         return ! $this->get_disable_taxes();
-	}
+    }
 
-	/**
-	 * @deprecated
-	 */
-	public function has_vat() {
+    /**
+     * @deprecated
+     */
+    public function has_vat() {
         return $this->is_taxable();
-	}
+    }
 
-	/**
-	 * Checks to see if the invoice requires payment.
-	 */
-	public function is_free() {
+    /**
+     * Checks to see if the invoice requires payment.
+     */
+    public function is_free() {
         $is_free = ( (float) wpinv_round_amount( $this->get_initial_total() ) == 0 );
 
-		if ( $this->is_recurring() && $this->get_recurring_total() > 0 ) {
-			$is_free = false;
-		}
+        if ( $this->is_recurring() && $this->get_recurring_total() > 0 ) {
+            $is_free = false;
+        }
 
         return apply_filters( 'wpinv_invoice_is_free', $is_free, $this );
     }
@@ -3142,46 +3142,46 @@ 
     public function is_paid() {
         $is_paid = $this->has_status( array( 'publish', 'wpi-processing', 'wpi-renewal' ) );
         return apply_filters( 'wpinv_invoice_is_paid', $is_paid, $this );
-	}
+    }
 
-	/**
+    /**
      * Checks if the invoice needs payment.
      */
-	public function needs_payment() {
-		$needs_payment = ! $this->is_paid() && ! $this->is_refunded() && ! $this->is_free();
+    public function needs_payment() {
+        $needs_payment = ! $this->is_paid() && ! $this->is_refunded() && ! $this->is_free();
         return apply_filters( 'wpinv_needs_payment', $needs_payment, $this );
     }
   
-	/**
+    /**
      * Checks if the invoice is refunded.
      */
-	public function is_refunded() {
+    public function is_refunded() {
         $is_refunded = $this->has_status( 'wpi-refunded' );
         return apply_filters( 'wpinv_invoice_is_refunded', $is_refunded, $this );
-	}
+    }
 
-	/**
+    /**
      * Checks if the invoice is held.
      */
-	public function is_held() {
+    public function is_held() {
         $is_held = $this->has_status( 'wpi-onhold' );
         return apply_filters( 'wpinv_invoice_is_held', $is_held, $this );
-	}
+    }
 
-	/**
+    /**
      * Checks if the invoice is due.
      */
-	public function is_due() {
-		$due_date = $this->get_due_date();
-		return empty( $due_date ) ? false : current_time( 'timestamp' ) > strtotime( $due_date );
-	}
+    public function is_due() {
+        $due_date = $this->get_due_date();
+        return empty( $due_date ) ? false : current_time( 'timestamp' ) > strtotime( $due_date );
+    }
 
-	/**
+    /**
      * Checks if the invoice is draft.
      */
-	public function is_draft() {
+    public function is_draft() {
         return $this->has_status( 'draft, auto-draft' );
-	}
+    }
 
     /**
      * Checks if the invoice has a given status.
@@ -3189,9 +3189,9 @@ 
     public function has_status( $status ) {
         $status = wpinv_parse_list( $status );
         return apply_filters( 'wpinv_has_status', in_array( $this->get_status(), $status ), $status );
-	}
+    }
 
-	/**
+    /**
      * Checks if the invoice is of a given type.
      */
     public function is_type( $type ) {
@@ -3214,25 +3214,25 @@ 
      */
     public function has_free_trial() {
         return $this->is_recurring() && 0 == $this->get_initial_total();
-	}
+    }
 
-	/**
+    /**
      * @deprecated
      */
     public function is_free_trial() {
         $this->has_free_trial();
     }
 
-	/**
+    /**
      * Check if the initial payment if 0.
      *
      */
-	public function is_initial_free() {
+    public function is_initial_free() {
         $is_initial_free = ! ( (float) wpinv_round_amount( $this->get_initial_total() ) > 0 );
         return apply_filters( 'wpinv_invoice_is_initial_free', $is_initial_free, $this->get_cart_details(), $this );
     }
 	
-	/**
+    /**
      * Check if the recurring item has a free trial.
      *
      */
@@ -3245,21 +3245,21 @@ 
 
         $item = $this->get_recurring( true );
         return $item->has_free_trial();
-	}
+    }
 
-	/**
+    /**
      * Check if the free trial is a result of a discount.
      */
     public function is_free_trial_from_discount() {
-		return $this->has_free_trial() && ! $this->item_has_free_trial();
-	}
+        return $this->has_free_trial() && ! $this->item_has_free_trial();
+    }
 	
-	/**
+    /**
      * @deprecated
      */
     public function discount_first_payment_only() {
 
-		$discount = wpinv_get_discount_obj( $this->get_discount_code() );
+        $discount = wpinv_get_discount_obj( $this->get_discount_code() );
         if ( ! $discount->exists() || ! $this->is_recurring() ) {
             return true;
         }
@@ -3284,147 +3284,147 @@ 
      */
     public function add_item( $item ) {
 
-		if ( is_array( $item ) ) {
-			$item = $this->process_array_item( $item );
-		}
+        if ( is_array( $item ) ) {
+            $item = $this->process_array_item( $item );
+        }
 
-		if ( is_numeric( $item ) ) {
-			$item = new GetPaid_Form_Item( $item );
-		}
+        if ( is_numeric( $item ) ) {
+            $item = new GetPaid_Form_Item( $item );
+        }
 
         // Make sure that it is available for purchase.
-		if ( $item->get_id() > 0 && ! $item->can_purchase() ) {
-			return new WP_Error( 'invalid_item', __( 'This item is not available for purchase', 'invoicing' ) );
+        if ( $item->get_id() > 0 && ! $item->can_purchase() ) {
+            return new WP_Error( 'invalid_item', __( 'This item is not available for purchase', 'invoicing' ) );
         }
 
         // Do we have a recurring item?
-		if ( $item->is_recurring() ) {
-			$this->recurring_item = $item->get_id();
+        if ( $item->is_recurring() ) {
+            $this->recurring_item = $item->get_id();
         }
 
         // Invoice id.
         $item->invoice_id = (int) $this->get_id();
 
-		// Remove duplicates.
-		$this->remove_item( $item->get_id() );
+        // Remove duplicates.
+        $this->remove_item( $item->get_id() );
 
-		if ( 0 == $item->get_quantity() ) {
-			return;
-		}
+        if ( 0 == $item->get_quantity() ) {
+            return;
+        }
 
-		// Retrieve all items.
+        // Retrieve all items.
         $items   = $this->get_items();
 
-		// Add new item.
+        // Add new item.
         $items[] = $item;
 
         $this->set_prop( 'items', $items );
 
-		return true;
-	}
+        return true;
+    }
 
-	/**
-	 * Converts an array to an item.
-	 *
-	 * @since 1.0.19
-	 * @return GetPaid_Form_Item
-	 */
-	protected function process_array_item( $array ) {
+    /**
+     * Converts an array to an item.
+     *
+     * @since 1.0.19
+     * @return GetPaid_Form_Item
+     */
+    protected function process_array_item( $array ) {
 
-		$item_id = isset( $array['item_id'] ) ? $array['item_id'] : 0;
-		$item    = new GetPaid_Form_Item( $item_id );
+        $item_id = isset( $array['item_id'] ) ? $array['item_id'] : 0;
+        $item    = new GetPaid_Form_Item( $item_id );
 
-		// Set item data.
-		foreach ( array( 'name', 'price', 'description' ) as $key ) {
-			if ( isset( $array[ "item_$key" ] ) ) {
-				$method = "set_$key";
-				$item->$method( $array[ "item_$key" ] );
-			}
-		}
+        // Set item data.
+        foreach ( array( 'name', 'price', 'description' ) as $key ) {
+            if ( isset( $array[ "item_$key" ] ) ) {
+                $method = "set_$key";
+                $item->$method( $array[ "item_$key" ] );
+            }
+        }
 
-		if ( isset( $array['quantity'] ) ) {
-			$item->set_quantity( $array['quantity'] );
-		}
+        if ( isset( $array['quantity'] ) ) {
+            $item->set_quantity( $array['quantity'] );
+        }
 
-		// Set item meta.
-		if ( isset( $array['meta'] ) && is_array( $array['meta'] ) ) {
-			$item->set_item_meta( $array['meta'] );
-		}
+        // Set item meta.
+        if ( isset( $array['meta'] ) && is_array( $array['meta'] ) ) {
+            $item->set_item_meta( $array['meta'] );
+        }
 
-		return $item;
+        return $item;
 
-	}
+    }
 
     /**
-	 * Retrieves a specific item.
-	 *
-	 * @since 1.0.19
-	 * @return GetPaid_Form_Item|null
-	 */
-	public function get_item( $item_id ) {
+     * Retrieves a specific item.
+     *
+     * @since 1.0.19
+     * @return GetPaid_Form_Item|null
+     */
+    public function get_item( $item_id ) {
 
-		foreach ( $this->get_items() as $item ) {
-			if ( (int) $item_id == $item->get_id() ) {
-				return $item;
-			}
-		}
+        foreach ( $this->get_items() as $item ) {
+            if ( (int) $item_id == $item->get_id() ) {
+                return $item;
+            }
+        }
 
-		return null;
+        return null;
     }
 
     /**
-	 * Removes a specific item.
-	 *
-	 * @since 1.0.19
-	 */
-	public function remove_item( $item_id ) {
-		$items   = $this->get_items();
-		$item_id = (int) $item_id;
+     * Removes a specific item.
+     *
+     * @since 1.0.19
+     */
+    public function remove_item( $item_id ) {
+        $items   = $this->get_items();
+        $item_id = (int) $item_id;
 
-		foreach ( $items as $index => $item ) {
-			if ( (int) $item_id == $item->get_id() ) {
-				unset( $items[ $index ] );
-				$this->set_prop( 'items', $items );
+        foreach ( $items as $index => $item ) {
+            if ( (int) $item_id == $item->get_id() ) {
+                unset( $items[ $index ] );
+                $this->set_prop( 'items', $items );
 
-				if ( $item_id == $this->recurring_item ) {
-					$this->recurring_item = null;
-				}
+                if ( $item_id == $this->recurring_item ) {
+                    $this->recurring_item = null;
+                }
 
-			}
-		}
+            }
+        }
 
     }
 
     /**
-	 * Adds a fee to the invoice.
-	 *
-	 * @param array $fee An array of fee details. name, initial_fee, and recurring_fee are required.
-	 * @since 1.0.19
-	 */
+     * Adds a fee to the invoice.
+     *
+     * @param array $fee An array of fee details. name, initial_fee, and recurring_fee are required.
+     * @since 1.0.19
+     */
     public function add_fee( $fee ) {
 
-		$fees                 = $this->get_fees();
-		$fees[ $fee['name'] ] = $fee;
-		$this->set_prop( 'fees', $fees );
+        $fees                 = $this->get_fees();
+        $fees[ $fee['name'] ] = $fee;
+        $this->set_prop( 'fees', $fees );
 
     }
 
     /**
-	 * Retrieves a specific fee.
-	 *
-	 * @since 1.0.19
-	 */
-	public function get_fee( $fee ) {
+     * Retrieves a specific fee.
+     *
+     * @since 1.0.19
+     */
+    public function get_fee( $fee ) {
         $fees = $this->get_fees();
-		return isset( $fees[ $fee ] ) ? $fees[ $fee ] : null;
+        return isset( $fees[ $fee ] ) ? $fees[ $fee ] : null;
     }
 
     /**
-	 * Removes a specific fee.
-	 *
-	 * @since 1.0.19
-	 */
-	public function remove_fee( $fee ) {
+     * Removes a specific fee.
+     *
+     * @since 1.0.19
+     */
+    public function remove_fee( $fee ) {
         $fees = $this->get_fees();
         if ( isset( $fees[ $fee ] ) ) {
             unset( $fees[ $fee ] );
@@ -3432,55 +3432,55 @@ 
         }
     }
 
-	/**
-	 * Adds a discount to the invoice.
-	 *
-	 * @param array $discount An array of discount details. name, initial_discount, and recurring_discount are required. Include discount_code if the discount is from a discount code.
-	 * @since 1.0.19
-	 */
-	public function add_discount( $discount ) {
+    /**
+     * Adds a discount to the invoice.
+     *
+     * @param array $discount An array of discount details. name, initial_discount, and recurring_discount are required. Include discount_code if the discount is from a discount code.
+     * @since 1.0.19
+     */
+    public function add_discount( $discount ) {
 
-		$discounts = $this->get_discounts();
-		$discounts[ $discount['name'] ] = $discount;
-		$this->set_prop( 'discounts', $discounts );
+        $discounts = $this->get_discounts();
+        $discounts[ $discount['name'] ] = $discount;
+        $this->set_prop( 'discounts', $discounts );
 
-	}
+    }
 
     /**
-	 * Retrieves a specific discount.
-	 *
-	 * @since 1.0.19
-	 * @return float
-	 */
-	public function get_discount( $discount = false ) {
+     * Retrieves a specific discount.
+     *
+     * @since 1.0.19
+     * @return float
+     */
+    public function get_discount( $discount = false ) {
 
-		// Backwards compatibilty.
-		if ( empty( $discount ) ) {
-			return $this->get_total_discount();
-		}
+        // Backwards compatibilty.
+        if ( empty( $discount ) ) {
+            return $this->get_total_discount();
+        }
 
         $discounts = $this->get_discounts();
-		return isset( $discounts[ $discount ] ) ? $discounts[ $discount ] : null;
+        return isset( $discounts[ $discount ] ) ? $discounts[ $discount ] : null;
     }
 
     /**
-	 * Removes a specific discount.
-	 *
-	 * @since 1.0.19
-	 */
-	public function remove_discount( $discount ) {
+     * Removes a specific discount.
+     *
+     * @since 1.0.19
+     */
+    public function remove_discount( $discount ) {
         $discounts = $this->get_discounts();
         if ( isset( $discounts[ $discount ] ) ) {
             unset( $discounts[ $discount ] );
             $this->set_prop( 'discounts', $discounts );
         }
 
-		if ( 'discount_code' == $discount ) {
-			foreach ( $this->get_items() as $item ) {
-				$item->item_discount           = 0;
-				$item->recurring_item_discount = 0;
-			}
-		}
+        if ( 'discount_code' == $discount ) {
+            foreach ( $this->get_items() as $item ) {
+                $item->item_discount           = 0;
+                $item->recurring_item_discount = 0;
+            }
+        }
 
     }
 
@@ -3493,34 +3493,34 @@ 
         if ( $this->is_taxable() ) {
 
             $taxes                 = $this->get_taxes();
-			$taxes[ $tax['name'] ] = $tax;
-			$this->set_prop( 'taxes', $tax );
+            $taxes[ $tax['name'] ] = $tax;
+            $this->set_prop( 'taxes', $tax );
 
         }
     }
 
     /**
-	 * Retrieves a specific tax.
-	 *
-	 * @since 1.0.19
-	 */
-	public function get_tax( $tax = null ) {
+     * Retrieves a specific tax.
+     *
+     * @since 1.0.19
+     */
+    public function get_tax( $tax = null ) {
 
-		// Backwards compatility.
-		if ( empty( $tax ) ) {
-			return $this->get_total_tax();
-		}
+        // Backwards compatility.
+        if ( empty( $tax ) ) {
+            return $this->get_total_tax();
+        }
 
         $taxes = $this->get_taxes();
-		return isset( $taxes[ $tax ] ) ? $taxes[ $tax ] : null;
+        return isset( $taxes[ $tax ] ) ? $taxes[ $tax ] : null;
     }
 
     /**
-	 * Removes a specific tax.
-	 *
-	 * @since 1.0.19
-	 */
-	public function remove_tax( $tax ) {
+     * Removes a specific tax.
+     *
+     * @since 1.0.19
+     */
+    public function remove_tax( $tax ) {
         $taxes = $this->get_taxes();
         if ( isset( $taxes[ $tax ] ) ) {
             unset( $taxes[ $tax ] );
@@ -3529,185 +3529,185 @@ 
     }
 
     /**
-	 * Recalculates the invoice subtotal.
-	 *
-	 * @since 1.0.19
-	 * @return float The recalculated subtotal
-	 */
-	public function recalculate_subtotal() {
+     * Recalculates the invoice subtotal.
+     *
+     * @since 1.0.19
+     * @return float The recalculated subtotal
+     */
+    public function recalculate_subtotal() {
         $items     = $this->get_items();
-		$subtotal  = 0;
-		$recurring = 0;
+        $subtotal  = 0;
+        $recurring = 0;
 
         foreach ( $items as $item ) {
-			$subtotal  += $item->get_sub_total( 'edit' );
-			$recurring += $item->get_recurring_sub_total( 'edit' );
+            $subtotal  += $item->get_sub_total( 'edit' );
+            $recurring += $item->get_recurring_sub_total( 'edit' );
         }
 
-		if ( wpinv_prices_include_tax() ) {
-			$subtotal  = max( 0, $subtotal - $this->totals['tax']['initial'] );
-			$recurring = max( 0, $recurring - $this->totals['tax']['recurring'] );
-		}
+        if ( wpinv_prices_include_tax() ) {
+            $subtotal  = max( 0, $subtotal - $this->totals['tax']['initial'] );
+            $recurring = max( 0, $recurring - $this->totals['tax']['recurring'] );
+        }
 
-		$current = $this->is_renewal() ? $recurring : $subtotal;
-		$this->set_subtotal( $current );
+        $current = $this->is_renewal() ? $recurring : $subtotal;
+        $this->set_subtotal( $current );
 
-		$this->totals['subtotal'] = array(
-			'initial'   => $subtotal,
-			'recurring' => $recurring,
-		);
+        $this->totals['subtotal'] = array(
+            'initial'   => $subtotal,
+            'recurring' => $recurring,
+        );
 
         return $current;
     }
 
     /**
-	 * Recalculates the invoice discount total.
-	 *
-	 * @since 1.0.19
-	 * @return float The recalculated discount
-	 */
-	public function recalculate_total_discount() {
+     * Recalculates the invoice discount total.
+     *
+     * @since 1.0.19
+     * @return float The recalculated discount
+     */
+    public function recalculate_total_discount() {
         $discounts = $this->get_discounts();
-		$discount  = 0;
-		$recurring = 0;
+        $discount  = 0;
+        $recurring = 0;
 
         foreach ( $discounts as $data ) {
-			$discount  += wpinv_sanitize_amount( $data['initial_discount'] );
-			$recurring += wpinv_sanitize_amount( $data['recurring_discount'] );
-		}
+            $discount  += wpinv_sanitize_amount( $data['initial_discount'] );
+            $recurring += wpinv_sanitize_amount( $data['recurring_discount'] );
+        }
 
-		$current = $this->is_renewal() ? $recurring : $discount;
+        $current = $this->is_renewal() ? $recurring : $discount;
 
-		$this->set_total_discount( $current );
+        $this->set_total_discount( $current );
 
-		$this->totals['discount'] = array(
-			'initial'   => $discount,
-			'recurring' => $recurring,
-		);
+        $this->totals['discount'] = array(
+            'initial'   => $discount,
+            'recurring' => $recurring,
+        );
 
-		return $current;
+        return $current;
 
     }
 
     /**
-	 * Recalculates the invoice tax total.
-	 *
-	 * @since 1.0.19
-	 * @return float The recalculated tax
-	 */
-	public function recalculate_total_tax() {
+     * Recalculates the invoice tax total.
+     *
+     * @since 1.0.19
+     * @return float The recalculated tax
+     */
+    public function recalculate_total_tax() {
 
-		// Maybe disable taxes.
-		$vat_number = $this->get_vat_number();
-		$skip_tax   = GetPaid_Payment_Form_Submission_Taxes::is_eu_transaction( $this->get_country() ) && ! empty( $vat_number );
+        // Maybe disable taxes.
+        $vat_number = $this->get_vat_number();
+        $skip_tax   = GetPaid_Payment_Form_Submission_Taxes::is_eu_transaction( $this->get_country() ) && ! empty( $vat_number );
 
-		if ( wpinv_is_base_country( $this->get_country() ) && 'vat_too' == wpinv_get_option( 'vat_same_country_rule', 'vat_too' ) ) {
-			$skip_tax = false;
-		}
+        if ( wpinv_is_base_country( $this->get_country() ) && 'vat_too' == wpinv_get_option( 'vat_same_country_rule', 'vat_too' ) ) {
+            $skip_tax = false;
+        }
 
-		if ( ! wpinv_use_taxes() || $this->get_disable_taxes() || ! wpinv_is_country_taxable( $this->get_country() ) || $skip_tax   ) {
+        if ( ! wpinv_use_taxes() || $this->get_disable_taxes() || ! wpinv_is_country_taxable( $this->get_country() ) || $skip_tax   ) {
 
-			$this->totals['tax'] = array(
-				'initial'   => 0,
-				'recurring' => 0,
-			);
+            $this->totals['tax'] = array(
+                'initial'   => 0,
+                'recurring' => 0,
+            );
 
-			$this->tax_rate = 0;
+            $this->tax_rate = 0;
 
-			$this->set_taxes( array() );
-			$current = 0;
-		} else {
+            $this->set_taxes( array() );
+            $current = 0;
+        } else {
 
-			$item_taxes = array();
+            $item_taxes = array();
 
-			foreach ( $this->get_items() as $item ) {
-				$rates    = getpaid_get_item_tax_rates( $item, $this->get_country(), $this->get_state() );
-				$rates    = getpaid_filter_item_tax_rates( $item, $rates );
-				$taxes    = getpaid_calculate_item_taxes( getpaid_get_taxable_amount( $item, false ), $rates );
-				$r_taxes  = getpaid_calculate_item_taxes( getpaid_get_taxable_amount( $item, true ), $rates );
-				foreach ( $taxes as $name => $amount ) {
-					$recurring = isset( $r_taxes[ $name ] ) ? $r_taxes[ $name ] : 0;
-					$tax       = getpaid_prepare_item_tax( $item, $name, $amount, $recurring );
+            foreach ( $this->get_items() as $item ) {
+                $rates    = getpaid_get_item_tax_rates( $item, $this->get_country(), $this->get_state() );
+                $rates    = getpaid_filter_item_tax_rates( $item, $rates );
+                $taxes    = getpaid_calculate_item_taxes( getpaid_get_taxable_amount( $item, false ), $rates );
+                $r_taxes  = getpaid_calculate_item_taxes( getpaid_get_taxable_amount( $item, true ), $rates );
+                foreach ( $taxes as $name => $amount ) {
+                    $recurring = isset( $r_taxes[ $name ] ) ? $r_taxes[ $name ] : 0;
+                    $tax       = getpaid_prepare_item_tax( $item, $name, $amount, $recurring );
 
-					if ( ! isset( $item_taxes[ $name ] ) ) {
-						$item_taxes[ $name ] = $tax;
-						continue;
-					}
+                    if ( ! isset( $item_taxes[ $name ] ) ) {
+                        $item_taxes[ $name ] = $tax;
+                        continue;
+                    }
 
-					$item_taxes[ $name ]['initial_tax']   += $tax['initial_tax'];
-					$item_taxes[ $name ]['recurring_tax'] += $tax['recurring_tax'];
+                    $item_taxes[ $name ]['initial_tax']   += $tax['initial_tax'];
+                    $item_taxes[ $name ]['recurring_tax'] += $tax['recurring_tax'];
 
-				}
+                }
 
-			}
+            }
 
-			$item_taxes = array_replace( $this->get_taxes(), $item_taxes );
-			$this->set_taxes( $item_taxes );
+            $item_taxes = array_replace( $this->get_taxes(), $item_taxes );
+            $this->set_taxes( $item_taxes );
 
-			$initial_tax   = array_sum( wp_list_pluck( $item_taxes, 'initial_tax' ) );
-			$recurring_tax = array_sum( wp_list_pluck( $item_taxes, 'recurring_tax' ) );
+            $initial_tax   = array_sum( wp_list_pluck( $item_taxes, 'initial_tax' ) );
+            $recurring_tax = array_sum( wp_list_pluck( $item_taxes, 'recurring_tax' ) );
 
-			$current = $this->is_renewal() ? $recurring_tax : $initial_tax;
+            $current = $this->is_renewal() ? $recurring_tax : $initial_tax;
 
-			$this->totals['tax'] = array(
-				'initial'   => $initial_tax,
-				'recurring' => $recurring_tax,
-			);
+            $this->totals['tax'] = array(
+                'initial'   => $initial_tax,
+                'recurring' => $recurring_tax,
+            );
 
-		}
+        }
 
-		$this->set_total_tax( $current );
+        $this->set_total_tax( $current );
 
-		return $current;
+        return $current;
 
     }
 
     /**
-	 * Recalculates the invoice fees total.
-	 *
-	 * @since 1.0.19
-	 * @return float The recalculated fee
-	 */
-	public function recalculate_total_fees() {
-		$fees      = $this->get_fees();
-		$fee       = 0;
-		$recurring = 0;
+     * Recalculates the invoice fees total.
+     *
+     * @since 1.0.19
+     * @return float The recalculated fee
+     */
+    public function recalculate_total_fees() {
+        $fees      = $this->get_fees();
+        $fee       = 0;
+        $recurring = 0;
 
         foreach ( $fees as $data ) {
-			$fee       += wpinv_sanitize_amount( $data['initial_fee'] );
-			$recurring += wpinv_sanitize_amount( $data['recurring_fee'] );
-		}
+            $fee       += wpinv_sanitize_amount( $data['initial_fee'] );
+            $recurring += wpinv_sanitize_amount( $data['recurring_fee'] );
+        }
 
-		$current = $this->is_renewal() ? $recurring : $fee;
-		$this->set_total_fees( $current );
+        $current = $this->is_renewal() ? $recurring : $fee;
+        $this->set_total_fees( $current );
 
-		$this->totals['fee'] = array(
-			'initial'   => $fee,
-			'recurring' => $recurring,
-		);
+        $this->totals['fee'] = array(
+            'initial'   => $fee,
+            'recurring' => $recurring,
+        );
 
         $this->set_total_fees( $fee );
         return $current;
     }
 
     /**
-	 * Recalculates the invoice total.
-	 *
-	 * @since 1.0.19
+     * Recalculates the invoice total.
+     *
+     * @since 1.0.19
      * @return float The invoice total
-	 */
-	public function recalculate_total() {
+     */
+    public function recalculate_total() {
         $this->recalculate_total_fees();
         $this->recalculate_total_discount();
-		$this->recalculate_total_tax();
-		$this->recalculate_subtotal();
-		$this->set_total( $this->get_total_tax( 'edit' ) + $this->get_total_fees( 'edit' ) + $this->get_subtotal( 'edit' ) - $this->get_total_discount( 'edit' ) );
-		return $this->get_total();
-	}
-
-	/**
-	 * @deprecated
-	 */
+        $this->recalculate_total_tax();
+        $this->recalculate_subtotal();
+        $this->set_total( $this->get_total_tax( 'edit' ) + $this->get_total_fees( 'edit' ) + $this->get_subtotal( 'edit' ) - $this->get_total_discount( 'edit' ) );
+        return $this->get_total();
+    }
+
+    /**
+     * @deprecated
+     */
     public function recalculate_totals() {
         $this->recalculate_total();
         $this->save( true );
@@ -3721,22 +3721,22 @@ 
         return $this->get_data();
     }
 
-	/**
+    /**
      * Adds a system note to an invoice.
      *
      * @param string $note The note being added.
-	 * @return int|false The new note's ID on success, false on failure.
+     * @return int|false The new note's ID on success, false on failure.
      *
      */
     public function add_system_note( $note ) {
-		return $this->add_note( $note, false, false, true );
-	}
+        return $this->add_note( $note, false, false, true );
+    }
 
     /**
      * Adds a note to an invoice.
      *
      * @param string $note The note being added.
-	 * @return int|false The new note's ID on success, false on failure.
+     * @return int|false The new note's ID on success, false on failure.
      *
      */
     public function add_note( $note = '', $customer_type = false, $added_by_user = false, $system = false ) {
@@ -3746,21 +3746,21 @@ 
             return false;
         }
 
-		$author       = 'System';
-		$author_email = 'bot@wpinvoicing.com';
+        $author       = 'System';
+        $author_email = 'bot@wpinvoicing.com';
 
-		// If this is an admin comment or it has been added by the user.
-		if ( is_user_logged_in() && ( ! $system || $added_by_user ) ) {
-			$user         = get_user_by( 'id', get_current_user_id() );
+        // If this is an admin comment or it has been added by the user.
+        if ( is_user_logged_in() && ( ! $system || $added_by_user ) ) {
+            $user         = get_user_by( 'id', get_current_user_id() );
             $author       = $user->display_name;
             $author_email = $user->user_email;
-		}
+        }
 
-		return getpaid_notes()->add_invoice_note( $this, $note, $author, $author_email, $customer_type );
+        return getpaid_notes()->add_invoice_note( $this, $note, $author, $author_email, $customer_type );
 
-	}
+    }
 
-	/**
+    /**
      * Generates a unique key for the invoice.
      */
     public function generate_key( $string = '' ) {
@@ -3780,113 +3780,113 @@ 
             $number = wpinv_get_next_invoice_number( $this->get_post_type() );
         }
 
-		return wpinv_format_invoice_number( $number, $this->get_post_type() );
-
-	}
-
-	/**
-	 * Handle the status transition.
-	 */
-	protected function status_transition() {
-		$status_transition = $this->status_transition;
-
-		// Reset status transition variable.
-		$this->status_transition = false;
+        return wpinv_format_invoice_number( $number, $this->get_post_type() );
 
-		if ( $status_transition ) {
-			try {
-
-				// Fire a hook for the status change.
-				do_action( 'getpaid_invoice_status_' . $status_transition['to'], $this, $status_transition );
-
-				// @deprecated this is deprecated and will be removed in the future.
-				do_action( 'wpinv_status_' . $status_transition['to'], $this->get_id(), $status_transition['from'] );
-
-				if ( ! empty( $status_transition['from'] ) ) {
-
-					/* translators: 1: old invoice status 2: new invoice status */
-					$transition_note = sprintf( __( 'Status changed from %1$s to %2$s.', 'invoicing' ), wpinv_status_nicename( $status_transition['from'], $this ), wpinv_status_nicename( $status_transition['to'], $this  ) );
-
-					// Fire another hook.
-					do_action( 'getpaid_invoice_status_' . $status_transition['from'] . '_to_' . $status_transition['to'], $this );
-					do_action( 'getpaid_invoice_status_changed', $this, $status_transition['from'], $status_transition['to'] );
-
-					// @deprecated this is deprecated and will be removed in the future.
-					do_action( 'wpinv_status_' . $status_transition['from'] . '_to_' . $status_transition['to'], $this->get_id(), $status_transition['from'] );
-
-					// Note the transition occurred.
-					$this->add_note( trim( $status_transition['note'] . ' ' . $transition_note ), false, $status_transition['manual'] );
-
-					// Work out if this was for a payment, and trigger a payment_status hook instead.
-					if (
-						in_array( $status_transition['from'], array( 'wpi-cancelled', 'wpi-pending', 'wpi-failed', 'wpi-refunded', 'wpi-onhold' ), true )
-						&& in_array( $status_transition['to'], array( 'publish', 'wpi-processing', 'wpi-renewal' ), true )
-					) {
-						do_action( 'getpaid_invoice_payment_status_changed', $this, $status_transition );
-					}
-
-					// Work out if this was for a payment reversal, and trigger a payment_status_reversed hook instead.
-					if (
-						in_array( $status_transition['from'], array( 'publish', 'wpi-processing', 'wpi-renewal' ), true )
-						&& in_array( $status_transition['to'], array( 'wpi-cancelled', 'wpi-pending', 'wpi-failed', 'wpi-refunded', 'wpi-onhold' ), true )
-					) {
-						do_action( 'getpaid_invoice_payment_status_reversed', $this, $status_transition );
-					}
-				} else {
-					/* translators: %s: new invoice status */
-					$transition_note = sprintf( __( 'Status set to %s.', 'invoicing' ), wpinv_status_nicename( $status_transition['to'], $this  ) );
-
-					// Note the transition occurred.
-					$this->add_note( trim( $status_transition['note'] . ' ' . $transition_note ), 0, $status_transition['manual'] );
+    }
 
-				}
-			} catch ( Exception $e ) {
-				$this->add_note( __( 'Error during status transition.', 'invoicing' ) . ' ' . $e->getMessage() );
-			}
-		}
-	}
+    /**
+     * Handle the status transition.
+     */
+    protected function status_transition() {
+        $status_transition = $this->status_transition;
+
+        // Reset status transition variable.
+        $this->status_transition = false;
+
+        if ( $status_transition ) {
+            try {
+
+                // Fire a hook for the status change.
+                do_action( 'getpaid_invoice_status_' . $status_transition['to'], $this, $status_transition );
+
+                // @deprecated this is deprecated and will be removed in the future.
+                do_action( 'wpinv_status_' . $status_transition['to'], $this->get_id(), $status_transition['from'] );
+
+                if ( ! empty( $status_transition['from'] ) ) {
+
+                    /* translators: 1: old invoice status 2: new invoice status */
+                    $transition_note = sprintf( __( 'Status changed from %1$s to %2$s.', 'invoicing' ), wpinv_status_nicename( $status_transition['from'], $this ), wpinv_status_nicename( $status_transition['to'], $this  ) );
+
+                    // Fire another hook.
+                    do_action( 'getpaid_invoice_status_' . $status_transition['from'] . '_to_' . $status_transition['to'], $this );
+                    do_action( 'getpaid_invoice_status_changed', $this, $status_transition['from'], $status_transition['to'] );
+
+                    // @deprecated this is deprecated and will be removed in the future.
+                    do_action( 'wpinv_status_' . $status_transition['from'] . '_to_' . $status_transition['to'], $this->get_id(), $status_transition['from'] );
+
+                    // Note the transition occurred.
+                    $this->add_note( trim( $status_transition['note'] . ' ' . $transition_note ), false, $status_transition['manual'] );
+
+                    // Work out if this was for a payment, and trigger a payment_status hook instead.
+                    if (
+                        in_array( $status_transition['from'], array( 'wpi-cancelled', 'wpi-pending', 'wpi-failed', 'wpi-refunded', 'wpi-onhold' ), true )
+                        && in_array( $status_transition['to'], array( 'publish', 'wpi-processing', 'wpi-renewal' ), true )
+                    ) {
+                        do_action( 'getpaid_invoice_payment_status_changed', $this, $status_transition );
+                    }
+
+                    // Work out if this was for a payment reversal, and trigger a payment_status_reversed hook instead.
+                    if (
+                        in_array( $status_transition['from'], array( 'publish', 'wpi-processing', 'wpi-renewal' ), true )
+                        && in_array( $status_transition['to'], array( 'wpi-cancelled', 'wpi-pending', 'wpi-failed', 'wpi-refunded', 'wpi-onhold' ), true )
+                    ) {
+                        do_action( 'getpaid_invoice_payment_status_reversed', $this, $status_transition );
+                    }
+                } else {
+                    /* translators: %s: new invoice status */
+                    $transition_note = sprintf( __( 'Status set to %s.', 'invoicing' ), wpinv_status_nicename( $status_transition['to'], $this  ) );
+
+                    // Note the transition occurred.
+                    $this->add_note( trim( $status_transition['note'] . ' ' . $transition_note ), 0, $status_transition['manual'] );
+
+                }
+            } catch ( Exception $e ) {
+                $this->add_note( __( 'Error during status transition.', 'invoicing' ) . ' ' . $e->getMessage() );
+            }
+        }
+    }
 
-	/**
-	 * Updates an invoice status.
-	 */
-	public function update_status( $new_status = false, $note = '', $manual = false ) {
+    /**
+     * Updates an invoice status.
+     */
+    public function update_status( $new_status = false, $note = '', $manual = false ) {
 
-		// Fires before updating a status.
-		do_action( 'wpinv_before_invoice_status_change', $this->get_id(), $new_status, $this->get_status( 'edit' ) );
+        // Fires before updating a status.
+        do_action( 'wpinv_before_invoice_status_change', $this->get_id(), $new_status, $this->get_status( 'edit' ) );
 
-		// Update the status.
-		$this->set_status( $new_status, $note, $manual );
+        // Update the status.
+        $this->set_status( $new_status, $note, $manual );
 
-		// Save the order.
-		return $this->save();
+        // Save the order.
+        return $this->save();
 
-	}
+    }
 
-	/**
-	 * @deprecated
-	 */
-	public function refresh_item_ids() {
+    /**
+     * @deprecated
+     */
+    public function refresh_item_ids() {
         $item_ids = implode( ',', array_unique( wp_list_pluck( $this->get_cart_details(), 'item_id' ) ) );
         update_post_meta( $this->get_id(), '_wpinv_item_ids', $item_ids );
-	}
+    }
 
-	/**
-	 * @deprecated
-	 */
-	public function update_items( $temp = false ) {
+    /**
+     * @deprecated
+     */
+    public function update_items( $temp = false ) {
 
-		$this->set_items( $this->get_items() );
+        $this->set_items( $this->get_items() );
 
-		if ( ! $temp ) {
-			$this->save();
-		}
+        if ( ! $temp ) {
+            $this->save();
+        }
 
         return $this;
-	}
+    }
 
-	/**
-	 * @deprecated
-	 */
+    /**
+     * @deprecated
+     */
     public function validate_discount() {
 
         $discount_code = $this->get_discount_code();
@@ -3902,93 +3902,93 @@ 
 
     }
 
-	/**
-	 * Refunds an invoice.
-	 */
+    /**
+     * Refunds an invoice.
+     */
     public function refund() {
-		$this->set_status( 'wpi-refunded' );
+        $this->set_status( 'wpi-refunded' );
         $this->save();
-	}
+    }
 
-	/**
-	 * Marks an invoice as paid.
-	 * 
-	 * @param string $transaction_id
-	 */
+    /**
+     * Marks an invoice as paid.
+     * 
+     * @param string $transaction_id
+     */
     public function mark_paid( $transaction_id = null, $note = '' ) {
 
-		// Set the transaction id.
-		if ( empty( $transaction_id ) ) {
-			$transaction_id = $this->generate_key('trans_');
-		}
+        // Set the transaction id.
+        if ( empty( $transaction_id ) ) {
+            $transaction_id = $this->generate_key('trans_');
+        }
 
-		if ( ! $this->get_transaction_id() ) {
-			$this->set_transaction_id( $transaction_id );
-		}
+        if ( ! $this->get_transaction_id() ) {
+            $this->set_transaction_id( $transaction_id );
+        }
 
-		if ( $this->is_paid() && 'wpi-processing' != $this->get_status() ) {
-			return $this->save();
-		}
+        if ( $this->is_paid() && 'wpi-processing' != $this->get_status() ) {
+            return $this->save();
+        }
 
-		// Set the completed date.
-		$this->set_date_completed( current_time( 'mysql' ) );
+        // Set the completed date.
+        $this->set_date_completed( current_time( 'mysql' ) );
 
-		// Set the new status.
-		$gateway = sanitize_text_field( $this->get_gateway_title() );
-		if ( $this->is_renewal() || ! $this->is_parent() ) {
+        // Set the new status.
+        $gateway = sanitize_text_field( $this->get_gateway_title() );
+        if ( $this->is_renewal() || ! $this->is_parent() ) {
 
-			$_note = wp_sprintf( __( 'Renewed via %s', 'invoicing' ), $gateway );
-			$_note = $_note . empty( $note ) ? '' : " ($note)";
+            $_note = wp_sprintf( __( 'Renewed via %s', 'invoicing' ), $gateway );
+            $_note = $_note . empty( $note ) ? '' : " ($note)";
 
-			if ( 'none' == $this->get_gateway() ) {
-				$_note = $note;
-			}
+            if ( 'none' == $this->get_gateway() ) {
+                $_note = $note;
+            }
 
-			$this->set_status( 'wpi-renewal', $_note );
+            $this->set_status( 'wpi-renewal', $_note );
 
-		} else {
+        } else {
 
-			$_note = wp_sprintf( __( 'Paid via %s', 'invoicing' ), $gateway );
-			$_note = $_note . empty( $note ) ? '' : " ($note)";
+            $_note = wp_sprintf( __( 'Paid via %s', 'invoicing' ), $gateway );
+            $_note = $_note . empty( $note ) ? '' : " ($note)";
 
-			if ( 'none' == $this->get_gateway() ) {
-				$_note = $note;
-			}
+            if ( 'none' == $this->get_gateway() ) {
+                $_note = $note;
+            }
 
-			$this->set_status( 'publish', $_note );
+            $this->set_status( 'publish', $_note );
 
-		}
+        }
 
-		// Set checkout mode.
-		$mode = wpinv_is_test_mode( $this->get_gateway() ) ? 'test' : 'live';
-		$this->set_mode( $mode );
+        // Set checkout mode.
+        $mode = wpinv_is_test_mode( $this->get_gateway() ) ? 'test' : 'live';
+        $this->set_mode( $mode );
 
-		// Save the invoice.
+        // Save the invoice.
         $this->save();
-	}
-
-	/**
-	 * Save data to the database.
-	 *
-	 * @since 1.0.19
-	 * @return int invoice ID
-	 */
-	public function save() {
-		$this->maybe_set_date_paid();
-		$this->maybe_set_key();
-		parent::save();
-		$this->clear_cache();
-		$this->status_transition();
-		return $this->get_id();
-	}
-
-	/**
+    }
+
+    /**
+     * Save data to the database.
+     *
+     * @since 1.0.19
+     * @return int invoice ID
+     */
+    public function save() {
+        $this->maybe_set_date_paid();
+        $this->maybe_set_key();
+        parent::save();
+        $this->clear_cache();
+        $this->status_transition();
+        return $this->get_id();
+    }
+
+    /**
      * Clears the subscription's cache.
      */
     public function clear_cache() {
-		wp_cache_delete( $this->get_key(), 'getpaid_invoice_keys_to_invoice_ids' );
-		wp_cache_delete( $this->get_number(), 'getpaid_invoice_numbers_to_invoice_ids' );
-		wp_cache_delete( $this->get_transaction_id(), 'getpaid_invoice_transaction_ids_to_invoice_ids' );
-	}
+        wp_cache_delete( $this->get_key(), 'getpaid_invoice_keys_to_invoice_ids' );
+        wp_cache_delete( $this->get_number(), 'getpaid_invoice_numbers_to_invoice_ids' );
+        wp_cache_delete( $this->get_transaction_id(), 'getpaid_invoice_transaction_ids_to_invoice_ids' );
+    }
 
 }