AyeCode / invoicing

includes/admin/class-getpaid-installer.php

Indentation +468 added lines, -468 removed lines

@@ -20,402 +20,402 @@ 
  */
 class GetPaid_Installer {
 
-	/**
-	 * Upgrades the install.
-	 *
-	 * @param string $upgrade_from The current invoicing version.
-	 */
-	public function upgrade_db( $upgrade_from ) {
-
-		// Save the current invoicing version.
-		update_option( 'wpinv_version', WPINV_VERSION );
-
-		// Setup the invoice Custom Post Type.
-		GetPaid_Post_Types::register_post_types();
-
-		// Clear the permalinks
-		flush_rewrite_rules();
-
-		// Maybe create new/missing pages.
-		$this->create_pages();
-
-		// Maybe re(add) admin capabilities.
-		$this->add_capabilities();
-
-		// Maybe create the default payment form.
-		wpinv_get_default_payment_form();
-
-		// Create any missing database tables.
-		$method = "upgrade_from_$upgrade_from";
-
-		$installed = get_option( 'gepaid_installed_on' );
-
-		if ( empty( $installed ) ) {
-			update_option( 'gepaid_installed_on', time() );
-		}
-
-		if ( method_exists( $this, $method ) ) {
-			$this->$method();
-		}
-
-	}
-
-	/**
-	 * Do a fresh install.
-	 *
-	 */
-	public function upgrade_from_0() {
-
-		// Save default tax rates.
-		update_option( 'wpinv_tax_rates', wpinv_get_data( 'tax-rates' ) );
-	}
-
-	/**
-	 * Upgrade to 0.0.5
-	 *
-	 */
-	public function upgrade_from_004() {
-		global $wpdb;
-
-		// Invoices.
-		$results = $wpdb->get_results( "SELECT ID FROM {$wpdb->posts} WHERE post_type = 'wpi_invoice' AND post_status IN( 'pending', 'processing', 'onhold', 'refunded', 'cancelled', 'failed', 'renewal' )" );
-		if ( ! empty( $results ) ) {
-			$wpdb->query( "UPDATE {$wpdb->posts} SET post_status = CONCAT( 'wpi-', post_status ) WHERE post_type = 'wpi_invoice' AND post_status IN( 'pending', 'processing', 'onhold', 'refunded', 'cancelled', 'failed', 'renewal' )" );
-
-			// Clean post cache
-			foreach ( $results as $row ) {
-				clean_post_cache( $row->ID );
-			}
-		}
-
-		// Item meta key changes
-		$query = 'SELECT DISTINCT post_id FROM ' . $wpdb->postmeta . " WHERE meta_key IN( '_wpinv_item_id', '_wpinv_package_id', '_wpinv_post_id', '_wpinv_cpt_name', '_wpinv_cpt_singular_name' )";
-		$results = $wpdb->get_results( $query );
-
-		if ( ! empty( $results ) ) {
-			$wpdb->query( 'UPDATE ' . $wpdb->postmeta . " SET meta_key = '_wpinv_custom_id' WHERE meta_key IN( '_wpinv_item_id', '_wpinv_package_id', '_wpinv_post_id' )" );
-			$wpdb->query( 'UPDATE ' . $wpdb->postmeta . " SET meta_key = '_wpinv_custom_name' WHERE meta_key = '_wpinv_cpt_name'" );
-			$wpdb->query( 'UPDATE ' . $wpdb->postmeta . " SET meta_key = '_wpinv_custom_singular_name' WHERE meta_key = '_wpinv_cpt_singular_name'" );
-
-			foreach ( $results as $row ) {
-				clean_post_cache( $row->post_id );
-			}
-		}
-
-		$this->upgrade_from_118();
-	}
-
-	/**
-	 * Upgrade to version 2.0.0.
-	 *
-	 */
-	public function upgrade_from_118() {
-		$this->migrate_old_invoices();
-		$this->upgrade_from_279();
-	}
-
-	/**
-	 * Upgrade to version 2.0.0.
-	 *
-	 */
-	public function upgrade_from_279() {
-		$this->migrate_old_customers();
-	}
-
-	/**
-	 * Give administrators the capability to manage GetPaid.
-	 *
-	 */
-	public function add_capabilities() {
-		$GLOBALS['wp_roles']->add_cap( 'administrator', 'manage_invoicing' );
-	}
-
-	/**
-	 * Retreives GetPaid pages.
-	 *
-	 */
-	public static function get_pages() {
-
-		return apply_filters(
-			'wpinv_create_pages',
-			array(
-
-				// Checkout page.
-				'checkout_page'             => array(
-					'name'    => _x( 'gp-checkout', 'Page slug', 'invoicing' ),
-					'title'   => _x( 'Checkout', 'Page title', 'invoicing' ),
-					'content' => '
+    /**
+     * Upgrades the install.
+     *
+     * @param string $upgrade_from The current invoicing version.
+     */
+    public function upgrade_db( $upgrade_from ) {
+
+        // Save the current invoicing version.
+        update_option( 'wpinv_version', WPINV_VERSION );
+
+        // Setup the invoice Custom Post Type.
+        GetPaid_Post_Types::register_post_types();
+
+        // Clear the permalinks
+        flush_rewrite_rules();
+
+        // Maybe create new/missing pages.
+        $this->create_pages();
+
+        // Maybe re(add) admin capabilities.
+        $this->add_capabilities();
+
+        // Maybe create the default payment form.
+        wpinv_get_default_payment_form();
+
+        // Create any missing database tables.
+        $method = "upgrade_from_$upgrade_from";
+
+        $installed = get_option( 'gepaid_installed_on' );
+
+        if ( empty( $installed ) ) {
+            update_option( 'gepaid_installed_on', time() );
+        }
+
+        if ( method_exists( $this, $method ) ) {
+            $this->$method();
+        }
+
+    }
+
+    /**
+     * Do a fresh install.
+     *
+     */
+    public function upgrade_from_0() {
+
+        // Save default tax rates.
+        update_option( 'wpinv_tax_rates', wpinv_get_data( 'tax-rates' ) );
+    }
+
+    /**
+     * Upgrade to 0.0.5
+     *
+     */
+    public function upgrade_from_004() {
+        global $wpdb;
+
+        // Invoices.
+        $results = $wpdb->get_results( "SELECT ID FROM {$wpdb->posts} WHERE post_type = 'wpi_invoice' AND post_status IN( 'pending', 'processing', 'onhold', 'refunded', 'cancelled', 'failed', 'renewal' )" );
+        if ( ! empty( $results ) ) {
+            $wpdb->query( "UPDATE {$wpdb->posts} SET post_status = CONCAT( 'wpi-', post_status ) WHERE post_type = 'wpi_invoice' AND post_status IN( 'pending', 'processing', 'onhold', 'refunded', 'cancelled', 'failed', 'renewal' )" );
+
+            // Clean post cache
+            foreach ( $results as $row ) {
+                clean_post_cache( $row->ID );
+            }
+        }
+
+        // Item meta key changes
+        $query = 'SELECT DISTINCT post_id FROM ' . $wpdb->postmeta . " WHERE meta_key IN( '_wpinv_item_id', '_wpinv_package_id', '_wpinv_post_id', '_wpinv_cpt_name', '_wpinv_cpt_singular_name' )";
+        $results = $wpdb->get_results( $query );
+
+        if ( ! empty( $results ) ) {
+            $wpdb->query( 'UPDATE ' . $wpdb->postmeta . " SET meta_key = '_wpinv_custom_id' WHERE meta_key IN( '_wpinv_item_id', '_wpinv_package_id', '_wpinv_post_id' )" );
+            $wpdb->query( 'UPDATE ' . $wpdb->postmeta . " SET meta_key = '_wpinv_custom_name' WHERE meta_key = '_wpinv_cpt_name'" );
+            $wpdb->query( 'UPDATE ' . $wpdb->postmeta . " SET meta_key = '_wpinv_custom_singular_name' WHERE meta_key = '_wpinv_cpt_singular_name'" );
+
+            foreach ( $results as $row ) {
+                clean_post_cache( $row->post_id );
+            }
+        }
+
+        $this->upgrade_from_118();
+    }
+
+    /**
+     * Upgrade to version 2.0.0.
+     *
+     */
+    public function upgrade_from_118() {
+        $this->migrate_old_invoices();
+        $this->upgrade_from_279();
+    }
+
+    /**
+     * Upgrade to version 2.0.0.
+     *
+     */
+    public function upgrade_from_279() {
+        $this->migrate_old_customers();
+    }
+
+    /**
+     * Give administrators the capability to manage GetPaid.
+     *
+     */
+    public function add_capabilities() {
+        $GLOBALS['wp_roles']->add_cap( 'administrator', 'manage_invoicing' );
+    }
+
+    /**
+     * Retreives GetPaid pages.
+     *
+     */
+    public static function get_pages() {
+
+        return apply_filters(
+            'wpinv_create_pages',
+            array(
+
+                // Checkout page.
+                'checkout_page'             => array(
+                    'name'    => _x( 'gp-checkout', 'Page slug', 'invoicing' ),
+                    'title'   => _x( 'Checkout', 'Page title', 'invoicing' ),
+                    'content' => '
 						<!-- wp:shortcode -->
 						[wpinv_checkout]
 						<!-- /wp:shortcode -->
 					',
-					'parent'  => '',
-				),
-
-				// Invoice history page.
-				'invoice_history_page'      => array(
-					'name'    => _x( 'gp-invoices', 'Page slug', 'invoicing' ),
-					'title'   => _x( 'My Invoices', 'Page title', 'invoicing' ),
-					'content' => '
+                    'parent'  => '',
+                ),
+
+                // Invoice history page.
+                'invoice_history_page'      => array(
+                    'name'    => _x( 'gp-invoices', 'Page slug', 'invoicing' ),
+                    'title'   => _x( 'My Invoices', 'Page title', 'invoicing' ),
+                    'content' => '
 					<!-- wp:shortcode -->
 					[wpinv_history]
 					<!-- /wp:shortcode -->
 				',
-					'parent'  => '',
-				),
-
-				// Success page content.
-				'success_page'              => array(
-					'name'    => _x( 'gp-receipt', 'Page slug', 'invoicing' ),
-					'title'   => _x( 'Payment Confirmation', 'Page title', 'invoicing' ),
-					'content' => '
+                    'parent'  => '',
+                ),
+
+                // Success page content.
+                'success_page'              => array(
+                    'name'    => _x( 'gp-receipt', 'Page slug', 'invoicing' ),
+                    'title'   => _x( 'Payment Confirmation', 'Page title', 'invoicing' ),
+                    'content' => '
 					<!-- wp:shortcode -->
 					[wpinv_receipt]
 					<!-- /wp:shortcode -->
 				',
-					'parent'  => 'gp-checkout',
-				),
-
-				// Failure page content.
-				'failure_page'              => array(
-					'name'    => _x( 'gp-transaction-failed', 'Page slug', 'invoicing' ),
-					'title'   => _x( 'Transaction Failed', 'Page title', 'invoicing' ),
-					'content' => __( 'Your transaction failed, please try again or contact site support.', 'invoicing' ),
-					'parent'  => 'gp-checkout',
-				),
-
-				// Subscriptions history page.
-				'invoice_subscription_page' => array(
-					'name'    => _x( 'gp-subscriptions', 'Page slug', 'invoicing' ),
-					'title'   => _x( 'My Subscriptions', 'Page title', 'invoicing' ),
-					'content' => '
+                    'parent'  => 'gp-checkout',
+                ),
+
+                // Failure page content.
+                'failure_page'              => array(
+                    'name'    => _x( 'gp-transaction-failed', 'Page slug', 'invoicing' ),
+                    'title'   => _x( 'Transaction Failed', 'Page title', 'invoicing' ),
+                    'content' => __( 'Your transaction failed, please try again or contact site support.', 'invoicing' ),
+                    'parent'  => 'gp-checkout',
+                ),
+
+                // Subscriptions history page.
+                'invoice_subscription_page' => array(
+                    'name'    => _x( 'gp-subscriptions', 'Page slug', 'invoicing' ),
+                    'title'   => _x( 'My Subscriptions', 'Page title', 'invoicing' ),
+                    'content' => '
 					<!-- wp:shortcode -->
 					[wpinv_subscriptions]
 					<!-- /wp:shortcode -->
 				',
-					'parent'  => '',
-				),
-
-			)
-		);
-
-	}
-
-	/**
-	 * Re-create GetPaid pages.
-	 *
-	 */
-	public function create_pages() {
-
-		foreach ( self::get_pages() as $key => $page ) {
-			wpinv_create_page( esc_sql( $page['name'] ), $key, $page['title'], $page['content'], $page['parent'] );
-		}
-
-	}
-
-	/**
-	 * Migrates old invoices to new invoices.
-	 *
-	 */
-	public function migrate_old_invoices() {
-		global $wpdb;
-
-		$invoices_table      = $wpdb->prefix . 'getpaid_invoices';
-		$invoice_items_table = $wpdb->prefix . 'getpaid_invoice_items';
-		$migrated            = $wpdb->get_col( "SELECT post_id FROM $invoices_table" );
-		$invoices            = array_unique(
-			get_posts(
-				array(
-					'post_type'      => array( 'wpi_invoice', 'wpi_quote' ),
-					'posts_per_page' => -1,
-					'fields'         => 'ids',
-					'post_status'    => array_keys( get_post_stati() ),
-					'exclude'        => (array) $migrated,
-				)
-			)
-		);
-
-		// Abort if we do not have any invoices.
-		if ( empty( $invoices ) ) {
-			return;
-		}
-
-		require_once WPINV_PLUGIN_DIR . 'includes/class-wpinv-legacy-invoice.php';
-
-		$invoice_rows = array();
-		foreach ( $invoices as $invoice ) {
-
-			$invoice = new WPInv_Legacy_Invoice( $invoice );
-
-			if ( empty( $invoice->ID ) ) {
-				return;
-			}
-
-			$fields = array(
-				'post_id'            => $invoice->ID,
-				'number'             => $invoice->get_number(),
-				'key'                => $invoice->get_key(),
-				'type'               => str_replace( 'wpi_', '', $invoice->post_type ),
-				'mode'               => $invoice->mode,
-				'user_ip'            => $invoice->get_ip(),
-				'first_name'         => $invoice->get_first_name(),
-				'last_name'          => $invoice->get_last_name(),
-				'address'            => $invoice->get_address(),
-				'city'               => $invoice->city,
-				'state'              => $invoice->state,
-				'country'            => $invoice->country,
-				'zip'                => $invoice->zip,
-				'adddress_confirmed' => (int) $invoice->adddress_confirmed,
-				'gateway'            => $invoice->get_gateway(),
-				'transaction_id'     => $invoice->get_transaction_id(),
-				'currency'           => $invoice->get_currency(),
-				'subtotal'           => $invoice->get_subtotal(),
-				'tax'                => $invoice->get_tax(),
-				'fees_total'         => $invoice->get_fees_total(),
-				'total'              => $invoice->get_total(),
-				'discount'           => $invoice->get_discount(),
-				'discount_code'      => $invoice->get_discount_code(),
-				'disable_taxes'      => $invoice->disable_taxes,
-				'due_date'           => $invoice->get_due_date(),
-				'completed_date'     => $invoice->get_completed_date(),
-				'company'            => $invoice->company,
-				'vat_number'         => $invoice->vat_number,
-				'vat_rate'           => $invoice->vat_rate,
-				'custom_meta'        => $invoice->payment_meta,
-			);
-
-			foreach ( $fields as $key => $val ) {
-				if ( is_null( $val ) ) {
-					$val = '';
-				}
-				$val = maybe_serialize( $val );
-				$fields[ $key ] = $wpdb->prepare( '%s', $val );
-			}
-
-			$fields = implode( ', ', $fields );
-			$invoice_rows[] = "($fields)";
-
-			$item_rows    = array();
-			$item_columns = array();
-			foreach ( $invoice->get_cart_details() as $details ) {
-				$fields = array(
-					'post_id'          => $invoice->ID,
-					'item_id'          => $details['id'],
-					'item_name'        => $details['name'],
-					'item_description' => empty( $details['meta']['description'] ) ? '' : $details['meta']['description'],
-					'vat_rate'         => $details['vat_rate'],
-					'vat_class'        => empty( $details['vat_class'] ) ? '_standard' : $details['vat_class'],
-					'tax'              => $details['tax'],
-					'item_price'       => $details['item_price'],
-					'custom_price'     => $details['custom_price'],
-					'quantity'         => $details['quantity'],
-					'discount'         => $details['discount'],
-					'subtotal'         => $details['subtotal'],
-					'price'            => $details['price'],
-					'meta'             => $details['meta'],
-					'fees'             => $details['fees'],
-				);
-
-				$item_columns = array_keys( $fields );
-
-				foreach ( $fields as $key => $val ) {
-					if ( is_null( $val ) ) {
-						$val = '';
-					}
-					$val = maybe_serialize( $val );
-					$fields[ $key ] = $wpdb->prepare( '%s', $val );
-				}
-
-				$fields = implode( ', ', $fields );
-				$item_rows[] = "($fields)";
-			}
-
-			$item_rows    = implode( ', ', $item_rows );
-			$item_columns = implode( ', ', $item_columns );
-			$wpdb->query( "INSERT INTO $invoice_items_table ($item_columns) VALUES $item_rows" );
-		}
-
-		if ( empty( $invoice_rows ) ) {
-			return;
-		}
-
-		$invoice_rows = implode( ', ', $invoice_rows );
-		$wpdb->query( "INSERT INTO $invoices_table VALUES $invoice_rows" );
-
-	}
-
-	/**
-	 * Migrates old customers to new table.
-	 *
-	 */
-	public function migrate_old_customers() {
-		global $wpdb;
-
-		// Fetch post_id from $wpdb->prefix . 'getpaid_invoices' where customer_id = 0 or null.
-		$invoice_ids = $wpdb->get_col( "SELECT post_id FROM {$wpdb->prefix}getpaid_invoices WHERE customer_id = 0 OR customer_id IS NULL" );
-
-		foreach ( $invoice_ids as $invoice_id ) {
-			$invoice = wpinv_get_invoice( $invoice_id );
-
-			if ( empty( $invoice ) ) {
-				continue;
-			}
-
-			// Fetch customer from the user ID.
-			$user_id = $invoice->get_user_id();
-
-			if ( empty( $user_id ) ) {
-				continue;
-			}
-
-			$customer = getpaid_get_customer_by_user_id( $user_id );
-
-			// Create if not exists.
-			if ( empty( $customer ) ) {
-				$customer = new GetPaid_Customer( 0 );
-				$customer->clone_user( $user_id );
-				$customer->save();
-			}
-
-			$invoice->set_customer_id( $customer->get_id() );
-			$invoice->save();
-		}
-
-	}
-
-	/**
-	 * Migrates old invoices to new invoices.
-	 *
-	 */
-	public static function rename_gateways_label() {
-		global $wpdb;
-
-		foreach ( array_keys( wpinv_get_payment_gateways() ) as $gateway ) {
-
-			$wpdb->update(
-				$wpdb->prefix . 'getpaid_invoices',
-				array( 'gateway' => $gateway ),
-				array( 'gateway' => wpinv_get_gateway_admin_label( $gateway ) ),
-				'%s',
-				'%s'
-			);
-
-		}
-	}
-
-	/**
-	 * Returns the DB schema.
-	 *
-	 */
-	public static function get_db_schema() {
-		global $wpdb;
-
-		require_once ABSPATH . 'wp-admin/includes/upgrade.php';
-
-		$charset_collate = $wpdb->get_charset_collate();
+                    'parent'  => '',
+                ),
+
+            )
+        );
+
+    }
+
+    /**
+     * Re-create GetPaid pages.
+     *
+     */
+    public function create_pages() {
+
+        foreach ( self::get_pages() as $key => $page ) {
+            wpinv_create_page( esc_sql( $page['name'] ), $key, $page['title'], $page['content'], $page['parent'] );
+        }
+
+    }
+
+    /**
+     * Migrates old invoices to new invoices.
+     *
+     */
+    public function migrate_old_invoices() {
+        global $wpdb;
+
+        $invoices_table      = $wpdb->prefix . 'getpaid_invoices';
+        $invoice_items_table = $wpdb->prefix . 'getpaid_invoice_items';
+        $migrated            = $wpdb->get_col( "SELECT post_id FROM $invoices_table" );
+        $invoices            = array_unique(
+            get_posts(
+                array(
+                    'post_type'      => array( 'wpi_invoice', 'wpi_quote' ),
+                    'posts_per_page' => -1,
+                    'fields'         => 'ids',
+                    'post_status'    => array_keys( get_post_stati() ),
+                    'exclude'        => (array) $migrated,
+                )
+            )
+        );
+
+        // Abort if we do not have any invoices.
+        if ( empty( $invoices ) ) {
+            return;
+        }
+
+        require_once WPINV_PLUGIN_DIR . 'includes/class-wpinv-legacy-invoice.php';
+
+        $invoice_rows = array();
+        foreach ( $invoices as $invoice ) {
+
+            $invoice = new WPInv_Legacy_Invoice( $invoice );
+
+            if ( empty( $invoice->ID ) ) {
+                return;
+            }
+
+            $fields = array(
+                'post_id'            => $invoice->ID,
+                'number'             => $invoice->get_number(),
+                'key'                => $invoice->get_key(),
+                'type'               => str_replace( 'wpi_', '', $invoice->post_type ),
+                'mode'               => $invoice->mode,
+                'user_ip'            => $invoice->get_ip(),
+                'first_name'         => $invoice->get_first_name(),
+                'last_name'          => $invoice->get_last_name(),
+                'address'            => $invoice->get_address(),
+                'city'               => $invoice->city,
+                'state'              => $invoice->state,
+                'country'            => $invoice->country,
+                'zip'                => $invoice->zip,
+                'adddress_confirmed' => (int) $invoice->adddress_confirmed,
+                'gateway'            => $invoice->get_gateway(),
+                'transaction_id'     => $invoice->get_transaction_id(),
+                'currency'           => $invoice->get_currency(),
+                'subtotal'           => $invoice->get_subtotal(),
+                'tax'                => $invoice->get_tax(),
+                'fees_total'         => $invoice->get_fees_total(),
+                'total'              => $invoice->get_total(),
+                'discount'           => $invoice->get_discount(),
+                'discount_code'      => $invoice->get_discount_code(),
+                'disable_taxes'      => $invoice->disable_taxes,
+                'due_date'           => $invoice->get_due_date(),
+                'completed_date'     => $invoice->get_completed_date(),
+                'company'            => $invoice->company,
+                'vat_number'         => $invoice->vat_number,
+                'vat_rate'           => $invoice->vat_rate,
+                'custom_meta'        => $invoice->payment_meta,
+            );
+
+            foreach ( $fields as $key => $val ) {
+                if ( is_null( $val ) ) {
+                    $val = '';
+                }
+                $val = maybe_serialize( $val );
+                $fields[ $key ] = $wpdb->prepare( '%s', $val );
+            }
+
+            $fields = implode( ', ', $fields );
+            $invoice_rows[] = "($fields)";
+
+            $item_rows    = array();
+            $item_columns = array();
+            foreach ( $invoice->get_cart_details() as $details ) {
+                $fields = array(
+                    'post_id'          => $invoice->ID,
+                    'item_id'          => $details['id'],
+                    'item_name'        => $details['name'],
+                    'item_description' => empty( $details['meta']['description'] ) ? '' : $details['meta']['description'],
+                    'vat_rate'         => $details['vat_rate'],
+                    'vat_class'        => empty( $details['vat_class'] ) ? '_standard' : $details['vat_class'],
+                    'tax'              => $details['tax'],
+                    'item_price'       => $details['item_price'],
+                    'custom_price'     => $details['custom_price'],
+                    'quantity'         => $details['quantity'],
+                    'discount'         => $details['discount'],
+                    'subtotal'         => $details['subtotal'],
+                    'price'            => $details['price'],
+                    'meta'             => $details['meta'],
+                    'fees'             => $details['fees'],
+                );
+
+                $item_columns = array_keys( $fields );
+
+                foreach ( $fields as $key => $val ) {
+                    if ( is_null( $val ) ) {
+                        $val = '';
+                    }
+                    $val = maybe_serialize( $val );
+                    $fields[ $key ] = $wpdb->prepare( '%s', $val );
+                }
+
+                $fields = implode( ', ', $fields );
+                $item_rows[] = "($fields)";
+            }
+
+            $item_rows    = implode( ', ', $item_rows );
+            $item_columns = implode( ', ', $item_columns );
+            $wpdb->query( "INSERT INTO $invoice_items_table ($item_columns) VALUES $item_rows" );
+        }
+
+        if ( empty( $invoice_rows ) ) {
+            return;
+        }
+
+        $invoice_rows = implode( ', ', $invoice_rows );
+        $wpdb->query( "INSERT INTO $invoices_table VALUES $invoice_rows" );
+
+    }
+
+    /**
+     * Migrates old customers to new table.
+     *
+     */
+    public function migrate_old_customers() {
+        global $wpdb;
+
+        // Fetch post_id from $wpdb->prefix . 'getpaid_invoices' where customer_id = 0 or null.
+        $invoice_ids = $wpdb->get_col( "SELECT post_id FROM {$wpdb->prefix}getpaid_invoices WHERE customer_id = 0 OR customer_id IS NULL" );
+
+        foreach ( $invoice_ids as $invoice_id ) {
+            $invoice = wpinv_get_invoice( $invoice_id );
+
+            if ( empty( $invoice ) ) {
+                continue;
+            }
+
+            // Fetch customer from the user ID.
+            $user_id = $invoice->get_user_id();
+
+            if ( empty( $user_id ) ) {
+                continue;
+            }
+
+            $customer = getpaid_get_customer_by_user_id( $user_id );
+
+            // Create if not exists.
+            if ( empty( $customer ) ) {
+                $customer = new GetPaid_Customer( 0 );
+                $customer->clone_user( $user_id );
+                $customer->save();
+            }
+
+            $invoice->set_customer_id( $customer->get_id() );
+            $invoice->save();
+        }
+
+    }
+
+    /**
+     * Migrates old invoices to new invoices.
+     *
+     */
+    public static function rename_gateways_label() {
+        global $wpdb;
+
+        foreach ( array_keys( wpinv_get_payment_gateways() ) as $gateway ) {
+
+            $wpdb->update(
+                $wpdb->prefix . 'getpaid_invoices',
+                array( 'gateway' => $gateway ),
+                array( 'gateway' => wpinv_get_gateway_admin_label( $gateway ) ),
+                '%s',
+                '%s'
+            );
+
+        }
+    }
+
+    /**
+     * Returns the DB schema.
+     *
+     */
+    public static function get_db_schema() {
+        global $wpdb;
+
+        require_once ABSPATH . 'wp-admin/includes/upgrade.php';
+
+        $charset_collate = $wpdb->get_charset_collate();
 
-		// Subscriptions.
-		$schema = "CREATE TABLE {$wpdb->prefix}wpinv_subscriptions (
+        // Subscriptions.
+        $schema = "CREATE TABLE {$wpdb->prefix}wpinv_subscriptions (
 			id bigint(20) unsigned NOT NULL auto_increment,
 			customer_id bigint(20) NOT NULL,
 			frequency int(11) NOT NULL DEFAULT '1',
@@ -438,8 +438,8 @@ 
 			KEY customer_and_status (customer_id, status)
 		  ) $charset_collate;";
 
-		// Invoices.
-		$schema .= "CREATE TABLE {$wpdb->prefix}getpaid_invoices (
+        // Invoices.
+        $schema .= "CREATE TABLE {$wpdb->prefix}getpaid_invoices (
 			post_id BIGINT(20) NOT NULL,
 			customer_id BIGINT(20) NOT NULL DEFAULT 0,
             `number` VARCHAR(100),
@@ -476,8 +476,8 @@ 
 			KEY invoice_key (invoice_key)
 		  ) $charset_collate;";
 
-		// Invoice items.
-		$schema .= "CREATE TABLE {$wpdb->prefix}getpaid_invoice_items (
+        // Invoice items.
+        $schema .= "CREATE TABLE {$wpdb->prefix}getpaid_invoice_items (
 			ID BIGINT(20) NOT NULL AUTO_INCREMENT,
             post_id BIGINT(20) NOT NULL,
             item_id BIGINT(20) NOT NULL,
@@ -499,8 +499,8 @@ 
 			KEY post_id (post_id)
 		  ) $charset_collate;";
 
-		// Customers.
-		$schema .= "CREATE TABLE {$wpdb->prefix}getpaid_customers (
+        // Customers.
+        $schema .= "CREATE TABLE {$wpdb->prefix}getpaid_customers (
 			id BIGINT(20) NOT NULL AUTO_INCREMENT,
 			user_id BIGINT(20) NOT NULL,
 			email VARCHAR(100) NOT NULL,
@@ -510,38 +510,38 @@ 
 			purchase_count BIGINT(20) NOT NULL DEFAULT 0,
 			";
 
-		// Add address fields.
-		foreach ( array_keys( getpaid_user_address_fields() ) as $field ) {
-			// Skip id, user_id and email.
-			if ( in_array( $field, array( 'id', 'user_id', 'email', 'purchase_value', 'purchase_count', 'date_created', 'date_modified', 'uuid' ), true ) ) {
-				continue;
-			}
-
-			$field   = sanitize_key( $field );
-			$length  = 100;
-			$default = '';
-
-			// Country.
-			if ( 'country' === $field ) {
-				$length  = 2;
-				$default = wpinv_get_default_country();
-			}
-
-			// State.
-			if ( 'state' === $field ) {
-				$default = wpinv_get_default_state();
-			}
-
-			// Phone, zip.
-			if ( in_array( $field, array( 'phone', 'zip' ), true ) ) {
-				$length = 20;
-			}
-
-			$schema .= "`$field` VARCHAR($length) NOT NULL DEFAULT '$default',
+        // Add address fields.
+        foreach ( array_keys( getpaid_user_address_fields() ) as $field ) {
+            // Skip id, user_id and email.
+            if ( in_array( $field, array( 'id', 'user_id', 'email', 'purchase_value', 'purchase_count', 'date_created', 'date_modified', 'uuid' ), true ) ) {
+                continue;
+            }
+
+            $field   = sanitize_key( $field );
+            $length  = 100;
+            $default = '';
+
+            // Country.
+            if ( 'country' === $field ) {
+                $length  = 2;
+                $default = wpinv_get_default_country();
+            }
+
+            // State.
+            if ( 'state' === $field ) {
+                $default = wpinv_get_default_state();
+            }
+
+            // Phone, zip.
+            if ( in_array( $field, array( 'phone', 'zip' ), true ) ) {
+                $length = 20;
+            }
+
+            $schema .= "`$field` VARCHAR($length) NOT NULL DEFAULT '$default',
 			";
-		}
+        }
 
-		$schema .= "date_created DATETIME NOT NULL,
+        $schema .= "date_created DATETIME NOT NULL,
 			date_modified DATETIME NOT NULL,
 			uuid VARCHAR(100) NOT NULL,
 			PRIMARY KEY  (id),
@@ -549,8 +549,8 @@ 
 			KEY email (email)
 		  ) $charset_collate;";
 
-		// Customer meta.
-		$schema .= "CREATE TABLE {$wpdb->prefix}getpaid_customer_meta (
+        // Customer meta.
+        $schema .= "CREATE TABLE {$wpdb->prefix}getpaid_customer_meta (
 			meta_id BIGINT(20) NOT NULL AUTO_INCREMENT,
 			customer_id BIGINT(20) NOT NULL,
 			meta_key VARCHAR(255) NOT NULL,
@@ -560,55 +560,55 @@ 
 			KEY meta_key (meta_key(191))
 		  ) $charset_collate;";
 
-		return $schema;
-	}
-
-	/**
-	 * Checks if the db schema is up to date.
-	 *
-	 * @return bool
-	 */
-	public static function is_db_schema_up_to_date() {
-		return md5( self::get_db_schema() ) === get_option( 'getpaid_db_schema' );
-	}
-
-	/**
-	 * Set up the database tables which the plugin needs to function.
-	 */
-	public static function create_db_tables() {
-		global $wpdb;
-
-		$wpdb->hide_errors();
-
-		require_once ABSPATH . 'wp-admin/includes/upgrade.php';
-
-		$schema = self::get_db_schema();
-
-		// If invoices table exists, rename key to invoice_key.
-		$invoices_table = "{$wpdb->prefix}getpaid_invoices";
-
-		if ( $wpdb->get_var( "SHOW TABLES LIKE '{$wpdb->prefix}getpaid_invoices'" ) === $invoices_table ) {
-			$fields = $wpdb->get_results( "SHOW COLUMNS FROM {$wpdb->prefix}getpaid_invoices" );
-
-			foreach ( $fields as $field ) {
-				if ( 'key' === $field->Field ) {
-					$wpdb->query( "ALTER TABLE {$wpdb->prefix}getpaid_invoices CHANGE `key` `invoice_key` VARCHAR(100)" );
-					break;
-				}
-			}
-		}
-
-		dbDelta( $schema );
-		wp_cache_flush();
-		update_option( 'getpaid_db_schema', md5( self::get_db_schema() ) );
-	}
-
-	/**
-	 * Creates tables if schema is not up to date.
-	 */
-	public static function maybe_create_db_tables() {
-		if ( ! self::is_db_schema_up_to_date() ) {
-			self::create_db_tables();
-		}
-	}
+        return $schema;
+    }
+
+    /**
+     * Checks if the db schema is up to date.
+     *
+     * @return bool
+     */
+    public static function is_db_schema_up_to_date() {
+        return md5( self::get_db_schema() ) === get_option( 'getpaid_db_schema' );
+    }
+
+    /**
+     * Set up the database tables which the plugin needs to function.
+     */
+    public static function create_db_tables() {
+        global $wpdb;
+
+        $wpdb->hide_errors();
+
+        require_once ABSPATH . 'wp-admin/includes/upgrade.php';
+
+        $schema = self::get_db_schema();
+
+        // If invoices table exists, rename key to invoice_key.
+        $invoices_table = "{$wpdb->prefix}getpaid_invoices";
+
+        if ( $wpdb->get_var( "SHOW TABLES LIKE '{$wpdb->prefix}getpaid_invoices'" ) === $invoices_table ) {
+            $fields = $wpdb->get_results( "SHOW COLUMNS FROM {$wpdb->prefix}getpaid_invoices" );
+
+            foreach ( $fields as $field ) {
+                if ( 'key' === $field->Field ) {
+                    $wpdb->query( "ALTER TABLE {$wpdb->prefix}getpaid_invoices CHANGE `key` `invoice_key` VARCHAR(100)" );
+                    break;
+                }
+            }
+        }
+
+        dbDelta( $schema );
+        wp_cache_flush();
+        update_option( 'getpaid_db_schema', md5( self::get_db_schema() ) );
+    }
+
+    /**
+     * Creates tables if schema is not up to date.
+     */
+    public static function maybe_create_db_tables() {
+        if ( ! self::is_db_schema_up_to_date() ) {
+            self::create_db_tables();
+        }
+    }
 }

Spacing +90 added lines, -90 removed lines

@@ -8,7 +8,7 @@ 
  * @since   2.0.2
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * The main installer/updater class.
@@ -25,10 +25,10 @@ 
 	 *
 	 * @param string $upgrade_from The current invoicing version.
 	 */
-	public function upgrade_db( $upgrade_from ) {
+	public function upgrade_db($upgrade_from) {
 
 		// Save the current invoicing version.
-		update_option( 'wpinv_version', WPINV_VERSION );
+		update_option('wpinv_version', WPINV_VERSION);
 
 		// Setup the invoice Custom Post Type.
 		GetPaid_Post_Types::register_post_types();
@@ -48,13 +48,13 @@ 
 		// Create any missing database tables.
 		$method = "upgrade_from_$upgrade_from";
 
-		$installed = get_option( 'gepaid_installed_on' );
+		$installed = get_option('gepaid_installed_on');
 
-		if ( empty( $installed ) ) {
-			update_option( 'gepaid_installed_on', time() );
+		if (empty($installed)) {
+			update_option('gepaid_installed_on', time());
 		}
 
-		if ( method_exists( $this, $method ) ) {
+		if (method_exists($this, $method)) {
 			$this->$method();
 		}
 
@@ -67,7 +67,7 @@ 
 	public function upgrade_from_0() {
 
 		// Save default tax rates.
-		update_option( 'wpinv_tax_rates', wpinv_get_data( 'tax-rates' ) );
+		update_option('wpinv_tax_rates', wpinv_get_data('tax-rates'));
 	}
 
 	/**
@@ -78,27 +78,27 @@ 
 		global $wpdb;
 
 		// Invoices.
-		$results = $wpdb->get_results( "SELECT ID FROM {$wpdb->posts} WHERE post_type = 'wpi_invoice' AND post_status IN( 'pending', 'processing', 'onhold', 'refunded', 'cancelled', 'failed', 'renewal' )" );
-		if ( ! empty( $results ) ) {
-			$wpdb->query( "UPDATE {$wpdb->posts} SET post_status = CONCAT( 'wpi-', post_status ) WHERE post_type = 'wpi_invoice' AND post_status IN( 'pending', 'processing', 'onhold', 'refunded', 'cancelled', 'failed', 'renewal' )" );
+		$results = $wpdb->get_results("SELECT ID FROM {$wpdb->posts} WHERE post_type = 'wpi_invoice' AND post_status IN( 'pending', 'processing', 'onhold', 'refunded', 'cancelled', 'failed', 'renewal' )");
+		if (!empty($results)) {
+			$wpdb->query("UPDATE {$wpdb->posts} SET post_status = CONCAT( 'wpi-', post_status ) WHERE post_type = 'wpi_invoice' AND post_status IN( 'pending', 'processing', 'onhold', 'refunded', 'cancelled', 'failed', 'renewal' )");
 
 			// Clean post cache
-			foreach ( $results as $row ) {
-				clean_post_cache( $row->ID );
+			foreach ($results as $row) {
+				clean_post_cache($row->ID);
 			}
 		}
 
 		// Item meta key changes
 		$query = 'SELECT DISTINCT post_id FROM ' . $wpdb->postmeta . " WHERE meta_key IN( '_wpinv_item_id', '_wpinv_package_id', '_wpinv_post_id', '_wpinv_cpt_name', '_wpinv_cpt_singular_name' )";
-		$results = $wpdb->get_results( $query );
+		$results = $wpdb->get_results($query);
 
-		if ( ! empty( $results ) ) {
-			$wpdb->query( 'UPDATE ' . $wpdb->postmeta . " SET meta_key = '_wpinv_custom_id' WHERE meta_key IN( '_wpinv_item_id', '_wpinv_package_id', '_wpinv_post_id' )" );
-			$wpdb->query( 'UPDATE ' . $wpdb->postmeta . " SET meta_key = '_wpinv_custom_name' WHERE meta_key = '_wpinv_cpt_name'" );
-			$wpdb->query( 'UPDATE ' . $wpdb->postmeta . " SET meta_key = '_wpinv_custom_singular_name' WHERE meta_key = '_wpinv_cpt_singular_name'" );
+		if (!empty($results)) {
+			$wpdb->query('UPDATE ' . $wpdb->postmeta . " SET meta_key = '_wpinv_custom_id' WHERE meta_key IN( '_wpinv_item_id', '_wpinv_package_id', '_wpinv_post_id' )");
+			$wpdb->query('UPDATE ' . $wpdb->postmeta . " SET meta_key = '_wpinv_custom_name' WHERE meta_key = '_wpinv_cpt_name'");
+			$wpdb->query('UPDATE ' . $wpdb->postmeta . " SET meta_key = '_wpinv_custom_singular_name' WHERE meta_key = '_wpinv_cpt_singular_name'");
 
-			foreach ( $results as $row ) {
-				clean_post_cache( $row->post_id );
+			foreach ($results as $row) {
+				clean_post_cache($row->post_id);
 			}
 		}
 
@@ -127,7 +127,7 @@ 
 	 *
 	 */
 	public function add_capabilities() {
-		$GLOBALS['wp_roles']->add_cap( 'administrator', 'manage_invoicing' );
+		$GLOBALS['wp_roles']->add_cap('administrator', 'manage_invoicing');
 	}
 
 	/**
@@ -142,8 +142,8 @@ 
 
 				// Checkout page.
 				'checkout_page'             => array(
-					'name'    => _x( 'gp-checkout', 'Page slug', 'invoicing' ),
-					'title'   => _x( 'Checkout', 'Page title', 'invoicing' ),
+					'name'    => _x('gp-checkout', 'Page slug', 'invoicing'),
+					'title'   => _x('Checkout', 'Page title', 'invoicing'),
 					'content' => '
 						<!-- wp:shortcode -->
 						[wpinv_checkout]
@@ -154,8 +154,8 @@ 
 
 				// Invoice history page.
 				'invoice_history_page'      => array(
-					'name'    => _x( 'gp-invoices', 'Page slug', 'invoicing' ),
-					'title'   => _x( 'My Invoices', 'Page title', 'invoicing' ),
+					'name'    => _x('gp-invoices', 'Page slug', 'invoicing'),
+					'title'   => _x('My Invoices', 'Page title', 'invoicing'),
 					'content' => '
 					<!-- wp:shortcode -->
 					[wpinv_history]
@@ -166,8 +166,8 @@ 
 
 				// Success page content.
 				'success_page'              => array(
-					'name'    => _x( 'gp-receipt', 'Page slug', 'invoicing' ),
-					'title'   => _x( 'Payment Confirmation', 'Page title', 'invoicing' ),
+					'name'    => _x('gp-receipt', 'Page slug', 'invoicing'),
+					'title'   => _x('Payment Confirmation', 'Page title', 'invoicing'),
 					'content' => '
 					<!-- wp:shortcode -->
 					[wpinv_receipt]
@@ -178,16 +178,16 @@ 
 
 				// Failure page content.
 				'failure_page'              => array(
-					'name'    => _x( 'gp-transaction-failed', 'Page slug', 'invoicing' ),
-					'title'   => _x( 'Transaction Failed', 'Page title', 'invoicing' ),
-					'content' => __( 'Your transaction failed, please try again or contact site support.', 'invoicing' ),
+					'name'    => _x('gp-transaction-failed', 'Page slug', 'invoicing'),
+					'title'   => _x('Transaction Failed', 'Page title', 'invoicing'),
+					'content' => __('Your transaction failed, please try again or contact site support.', 'invoicing'),
 					'parent'  => 'gp-checkout',
 				),
 
 				// Subscriptions history page.
 				'invoice_subscription_page' => array(
-					'name'    => _x( 'gp-subscriptions', 'Page slug', 'invoicing' ),
-					'title'   => _x( 'My Subscriptions', 'Page title', 'invoicing' ),
+					'name'    => _x('gp-subscriptions', 'Page slug', 'invoicing'),
+					'title'   => _x('My Subscriptions', 'Page title', 'invoicing'),
 					'content' => '
 					<!-- wp:shortcode -->
 					[wpinv_subscriptions]
@@ -207,8 +207,8 @@ 
 	 */
 	public function create_pages() {
 
-		foreach ( self::get_pages() as $key => $page ) {
-			wpinv_create_page( esc_sql( $page['name'] ), $key, $page['title'], $page['content'], $page['parent'] );
+		foreach (self::get_pages() as $key => $page) {
+			wpinv_create_page(esc_sql($page['name']), $key, $page['title'], $page['content'], $page['parent']);
 		}
 
 	}
@@ -222,32 +222,32 @@ 
 
 		$invoices_table      = $wpdb->prefix . 'getpaid_invoices';
 		$invoice_items_table = $wpdb->prefix . 'getpaid_invoice_items';
-		$migrated            = $wpdb->get_col( "SELECT post_id FROM $invoices_table" );
+		$migrated            = $wpdb->get_col("SELECT post_id FROM $invoices_table");
 		$invoices            = array_unique(
 			get_posts(
 				array(
-					'post_type'      => array( 'wpi_invoice', 'wpi_quote' ),
+					'post_type'      => array('wpi_invoice', 'wpi_quote'),
 					'posts_per_page' => -1,
 					'fields'         => 'ids',
-					'post_status'    => array_keys( get_post_stati() ),
+					'post_status'    => array_keys(get_post_stati()),
 					'exclude'        => (array) $migrated,
 				)
 			)
 		);
 
 		// Abort if we do not have any invoices.
-		if ( empty( $invoices ) ) {
+		if (empty($invoices)) {
 			return;
 		}
 
 		require_once WPINV_PLUGIN_DIR . 'includes/class-wpinv-legacy-invoice.php';
 
 		$invoice_rows = array();
-		foreach ( $invoices as $invoice ) {
+		foreach ($invoices as $invoice) {
 
-			$invoice = new WPInv_Legacy_Invoice( $invoice );
+			$invoice = new WPInv_Legacy_Invoice($invoice);
 
-			if ( empty( $invoice->ID ) ) {
+			if (empty($invoice->ID)) {
 				return;
 			}
 
@@ -255,7 +255,7 @@ 
 				'post_id'            => $invoice->ID,
 				'number'             => $invoice->get_number(),
 				'key'                => $invoice->get_key(),
-				'type'               => str_replace( 'wpi_', '', $invoice->post_type ),
+				'type'               => str_replace('wpi_', '', $invoice->post_type),
 				'mode'               => $invoice->mode,
 				'user_ip'            => $invoice->get_ip(),
 				'first_name'         => $invoice->get_first_name(),
@@ -284,27 +284,27 @@ 
 				'custom_meta'        => $invoice->payment_meta,
 			);
 
-			foreach ( $fields as $key => $val ) {
-				if ( is_null( $val ) ) {
+			foreach ($fields as $key => $val) {
+				if (is_null($val)) {
 					$val = '';
 				}
-				$val = maybe_serialize( $val );
-				$fields[ $key ] = $wpdb->prepare( '%s', $val );
+				$val = maybe_serialize($val);
+				$fields[$key] = $wpdb->prepare('%s', $val);
 			}
 
-			$fields = implode( ', ', $fields );
+			$fields = implode(', ', $fields);
 			$invoice_rows[] = "($fields)";
 
 			$item_rows    = array();
 			$item_columns = array();
-			foreach ( $invoice->get_cart_details() as $details ) {
+			foreach ($invoice->get_cart_details() as $details) {
 				$fields = array(
 					'post_id'          => $invoice->ID,
 					'item_id'          => $details['id'],
 					'item_name'        => $details['name'],
-					'item_description' => empty( $details['meta']['description'] ) ? '' : $details['meta']['description'],
+					'item_description' => empty($details['meta']['description']) ? '' : $details['meta']['description'],
 					'vat_rate'         => $details['vat_rate'],
-					'vat_class'        => empty( $details['vat_class'] ) ? '_standard' : $details['vat_class'],
+					'vat_class'        => empty($details['vat_class']) ? '_standard' : $details['vat_class'],
 					'tax'              => $details['tax'],
 					'item_price'       => $details['item_price'],
 					'custom_price'     => $details['custom_price'],
@@ -316,31 +316,31 @@ 
 					'fees'             => $details['fees'],
 				);
 
-				$item_columns = array_keys( $fields );
+				$item_columns = array_keys($fields);
 
-				foreach ( $fields as $key => $val ) {
-					if ( is_null( $val ) ) {
+				foreach ($fields as $key => $val) {
+					if (is_null($val)) {
 						$val = '';
 					}
-					$val = maybe_serialize( $val );
-					$fields[ $key ] = $wpdb->prepare( '%s', $val );
+					$val = maybe_serialize($val);
+					$fields[$key] = $wpdb->prepare('%s', $val);
 				}
 
-				$fields = implode( ', ', $fields );
+				$fields = implode(', ', $fields);
 				$item_rows[] = "($fields)";
 			}
 
-			$item_rows    = implode( ', ', $item_rows );
-			$item_columns = implode( ', ', $item_columns );
-			$wpdb->query( "INSERT INTO $invoice_items_table ($item_columns) VALUES $item_rows" );
+			$item_rows    = implode(', ', $item_rows);
+			$item_columns = implode(', ', $item_columns);
+			$wpdb->query("INSERT INTO $invoice_items_table ($item_columns) VALUES $item_rows");
 		}
 
-		if ( empty( $invoice_rows ) ) {
+		if (empty($invoice_rows)) {
 			return;
 		}
 
-		$invoice_rows = implode( ', ', $invoice_rows );
-		$wpdb->query( "INSERT INTO $invoices_table VALUES $invoice_rows" );
+		$invoice_rows = implode(', ', $invoice_rows);
+		$wpdb->query("INSERT INTO $invoices_table VALUES $invoice_rows");
 
 	}
 
@@ -352,32 +352,32 @@ 
 		global $wpdb;
 
 		// Fetch post_id from $wpdb->prefix . 'getpaid_invoices' where customer_id = 0 or null.
-		$invoice_ids = $wpdb->get_col( "SELECT post_id FROM {$wpdb->prefix}getpaid_invoices WHERE customer_id = 0 OR customer_id IS NULL" );
+		$invoice_ids = $wpdb->get_col("SELECT post_id FROM {$wpdb->prefix}getpaid_invoices WHERE customer_id = 0 OR customer_id IS NULL");
 
-		foreach ( $invoice_ids as $invoice_id ) {
-			$invoice = wpinv_get_invoice( $invoice_id );
+		foreach ($invoice_ids as $invoice_id) {
+			$invoice = wpinv_get_invoice($invoice_id);
 
-			if ( empty( $invoice ) ) {
+			if (empty($invoice)) {
 				continue;
 			}
 
 			// Fetch customer from the user ID.
 			$user_id = $invoice->get_user_id();
 
-			if ( empty( $user_id ) ) {
+			if (empty($user_id)) {
 				continue;
 			}
 
-			$customer = getpaid_get_customer_by_user_id( $user_id );
+			$customer = getpaid_get_customer_by_user_id($user_id);
 
 			// Create if not exists.
-			if ( empty( $customer ) ) {
-				$customer = new GetPaid_Customer( 0 );
-				$customer->clone_user( $user_id );
+			if (empty($customer)) {
+				$customer = new GetPaid_Customer(0);
+				$customer->clone_user($user_id);
 				$customer->save();
 			}
 
-			$invoice->set_customer_id( $customer->get_id() );
+			$invoice->set_customer_id($customer->get_id());
 			$invoice->save();
 		}
 
@@ -390,12 +390,12 @@ 
 	public static function rename_gateways_label() {
 		global $wpdb;
 
-		foreach ( array_keys( wpinv_get_payment_gateways() ) as $gateway ) {
+		foreach (array_keys(wpinv_get_payment_gateways()) as $gateway) {
 
 			$wpdb->update(
 				$wpdb->prefix . 'getpaid_invoices',
-				array( 'gateway' => $gateway ),
-				array( 'gateway' => wpinv_get_gateway_admin_label( $gateway ) ),
+				array('gateway' => $gateway),
+				array('gateway' => wpinv_get_gateway_admin_label($gateway)),
 				'%s',
 				'%s'
 			);
@@ -511,29 +511,29 @@ 
 			";
 
 		// Add address fields.
-		foreach ( array_keys( getpaid_user_address_fields() ) as $field ) {
+		foreach (array_keys(getpaid_user_address_fields()) as $field) {
 			// Skip id, user_id and email.
-			if ( in_array( $field, array( 'id', 'user_id', 'email', 'purchase_value', 'purchase_count', 'date_created', 'date_modified', 'uuid' ), true ) ) {
+			if (in_array($field, array('id', 'user_id', 'email', 'purchase_value', 'purchase_count', 'date_created', 'date_modified', 'uuid'), true)) {
 				continue;
 			}
 
-			$field   = sanitize_key( $field );
+			$field   = sanitize_key($field);
 			$length  = 100;
 			$default = '';
 
 			// Country.
-			if ( 'country' === $field ) {
+			if ('country' === $field) {
 				$length  = 2;
 				$default = wpinv_get_default_country();
 			}
 
 			// State.
-			if ( 'state' === $field ) {
+			if ('state' === $field) {
 				$default = wpinv_get_default_state();
 			}
 
 			// Phone, zip.
-			if ( in_array( $field, array( 'phone', 'zip' ), true ) ) {
+			if (in_array($field, array('phone', 'zip'), true)) {
 				$length = 20;
 			}
 
@@ -569,7 +569,7 @@ 
 	 * @return bool
 	 */
 	public static function is_db_schema_up_to_date() {
-		return md5( self::get_db_schema() ) === get_option( 'getpaid_db_schema' );
+		return md5(self::get_db_schema()) === get_option('getpaid_db_schema');
 	}
 
 	/**
@@ -587,27 +587,27 @@ 
 		// If invoices table exists, rename key to invoice_key.
 		$invoices_table = "{$wpdb->prefix}getpaid_invoices";
 
-		if ( $wpdb->get_var( "SHOW TABLES LIKE '{$wpdb->prefix}getpaid_invoices'" ) === $invoices_table ) {
-			$fields = $wpdb->get_results( "SHOW COLUMNS FROM {$wpdb->prefix}getpaid_invoices" );
+		if ($wpdb->get_var("SHOW TABLES LIKE '{$wpdb->prefix}getpaid_invoices'") === $invoices_table) {
+			$fields = $wpdb->get_results("SHOW COLUMNS FROM {$wpdb->prefix}getpaid_invoices");
 
-			foreach ( $fields as $field ) {
-				if ( 'key' === $field->Field ) {
-					$wpdb->query( "ALTER TABLE {$wpdb->prefix}getpaid_invoices CHANGE `key` `invoice_key` VARCHAR(100)" );
+			foreach ($fields as $field) {
+				if ('key' === $field->Field) {
+					$wpdb->query("ALTER TABLE {$wpdb->prefix}getpaid_invoices CHANGE `key` `invoice_key` VARCHAR(100)");
 					break;
 				}
 			}
 		}
 
-		dbDelta( $schema );
+		dbDelta($schema);
 		wp_cache_flush();
-		update_option( 'getpaid_db_schema', md5( self::get_db_schema() ) );
+		update_option('getpaid_db_schema', md5(self::get_db_schema()));
 	}
 
 	/**
 	 * Creates tables if schema is not up to date.
 	 */
 	public static function maybe_create_db_tables() {
-		if ( ! self::is_db_schema_up_to_date() ) {
+		if (!self::is_db_schema_up_to_date()) {
 			self::create_db_tables();
 		}
 	}

includes/admin/register-settings.php

Spacing +386 added lines, -386 removed lines

@@ -6,7 +6,7 @@ 
  * @since   1.0.0
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * Retrieves all default settings.
@@ -16,13 +16,13 @@ 
 function wpinv_get_settings() {
     $defaults = array();
 
-    foreach ( array_values( wpinv_get_registered_settings() ) as $tab_settings ) {
+    foreach (array_values(wpinv_get_registered_settings()) as $tab_settings) {
 
-        foreach ( array_values( $tab_settings ) as $section_settings ) {
+        foreach (array_values($tab_settings) as $section_settings) {
 
-            foreach ( $section_settings as $key => $setting ) {
-                if ( isset( $setting['std'] ) ) {
-                    $defaults[ $key ] = $setting['std'];
+            foreach ($section_settings as $key => $setting) {
+                if (isset($setting['std'])) {
+                    $defaults[$key] = $setting['std'];
                 }
             }
 		}
@@ -41,12 +41,12 @@ 
     global $wpinv_options;
 
     // Try fetching the saved options.
-    if ( empty( $wpinv_options ) ) {
-        $wpinv_options = get_option( 'wpinv_settings' );
+    if (empty($wpinv_options)) {
+        $wpinv_options = get_option('wpinv_settings');
     }
 
     // If that fails, don't fetch the default settings to prevent a loop.
-    if ( ! is_array( $wpinv_options ) ) {
+    if (!is_array($wpinv_options)) {
         $wpinv_options = array();
     }
 
@@ -60,13 +60,13 @@ 
  * @param mixed $default The default value to use if the setting has not been set.
  * @return mixed
  */
-function wpinv_get_option( $key = '', $default = false ) {
+function wpinv_get_option($key = '', $default = false) {
 
     $options = wpinv_get_options();
-    $value   = isset( $options[ $key ] ) ? $options[ $key ] : $default;
-    $value   = apply_filters( 'wpinv_get_option', $value, $key, $default );
+    $value   = isset($options[$key]) ? $options[$key] : $default;
+    $value   = apply_filters('wpinv_get_option', $value, $key, $default);
 
-    return apply_filters( 'wpinv_get_option_' . $key, $value, $key, $default );
+    return apply_filters('wpinv_get_option_' . $key, $value, $key, $default);
 }
 
 /**
@@ -75,11 +75,11 @@ 
  * @param array $options the new options.
  * @return bool
  */
-function wpinv_update_options( $options ) {
+function wpinv_update_options($options) {
     global $wpinv_options;
 
     // update the option.
-    if ( is_array( $options ) && update_option( 'wpinv_settings', $options ) ) {
+    if (is_array($options) && update_option('wpinv_settings', $options)) {
         $wpinv_options = $options;
         return true;
     }
@@ -94,24 +94,24 @@ 
  * @param mixed $value The setting value.
  * @return bool
  */
-function wpinv_update_option( $key = '', $value = false ) {
+function wpinv_update_option($key = '', $value = false) {
 
     // If no key, exit.
-    if ( empty( $key ) ) {
+    if (empty($key)) {
         return false;
     }
 
     // Maybe delete the option instead.
-    if ( is_null( $value ) ) {
-        return wpinv_delete_option( $key );
+    if (is_null($value)) {
+        return wpinv_delete_option($key);
     }
 
     // Prepare the new options.
     $options         = wpinv_get_options();
-    $options[ $key ] = apply_filters( 'wpinv_update_option', $value, $key );
+    $options[$key] = apply_filters('wpinv_update_option', $value, $key);
 
     // Save the new options.
-    return wpinv_update_options( $options );
+    return wpinv_update_options($options);
 
 }
 
@@ -121,18 +121,18 @@ 
  * @param string $key the setting key.
  * @return bool
  */
-function wpinv_delete_option( $key = '' ) {
+function wpinv_delete_option($key = '') {
 
     // If no key, exit
-    if ( empty( $key ) ) {
+    if (empty($key)) {
         return false;
     }
 
     $options = wpinv_get_options();
 
-    if ( isset( $options[ $key ] ) ) {
-        unset( $options[ $key ] );
-        return wpinv_update_options( $options );
+    if (isset($options[$key])) {
+        unset($options[$key]);
+        return wpinv_update_options($options);
     }
 
     return true;
@@ -144,22 +144,22 @@ 
  *
  */
 function wpinv_register_settings() {
-	do_action( 'getpaid_before_register_settings' );
+	do_action('getpaid_before_register_settings');
 
     // Loop through all tabs.
-    foreach ( wpinv_get_registered_settings() as $tab => $sections ) {
+    foreach (wpinv_get_registered_settings() as $tab => $sections) {
 
         // In each tab, loop through sections.
-        foreach ( $sections as $section => $settings ) {
+        foreach ($sections as $section => $settings) {
 
             // Check for backwards compatibility
-            $section_tabs = wpinv_get_settings_tab_sections( $tab );
-            if ( ! is_array( $section_tabs ) || ! array_key_exists( $section, $section_tabs ) ) {
+            $section_tabs = wpinv_get_settings_tab_sections($tab);
+            if (!is_array($section_tabs) || !array_key_exists($section, $section_tabs)) {
                 $section = 'main';
                 $settings = $sections;
             }
 
-			do_action( "getpaid_register_{$tab}_{$section}" );
+			do_action("getpaid_register_{$tab}_{$section}");
 
             // Register the setting section.
             add_settings_section(
@@ -169,20 +169,20 @@ 
                 'wpinv_settings_' . $tab . '_' . $section
             );
 
-            foreach ( $settings as $option ) {
-                if ( ! empty( $option['id'] ) ) {
-                    wpinv_register_settings_option( $tab, $section, $option );
+            foreach ($settings as $option) {
+                if (!empty($option['id'])) {
+                    wpinv_register_settings_option($tab, $section, $option);
                 }
             }
 }
     }
 
     // Creates our settings in the options table.
-    register_setting( 'wpinv_settings', 'wpinv_settings', 'wpinv_settings_sanitize' );
+    register_setting('wpinv_settings', 'wpinv_settings', 'wpinv_settings_sanitize');
 
-	do_action( 'getpaid_after_register_settings' );
+	do_action('getpaid_after_register_settings');
 }
-add_action( 'admin_init', 'wpinv_register_settings' );
+add_action('admin_init', 'wpinv_register_settings');
 
 /**
  * Register a single settings option.
@@ -192,49 +192,49 @@ 
  * @param string $option
  *
  */
-function wpinv_register_settings_option( $tab, $section, $option ) {
+function wpinv_register_settings_option($tab, $section, $option) {
 
-    $name       = isset( $option['name'] ) ? $option['name'] : '';
+    $name       = isset($option['name']) ? $option['name'] : '';
     $cb         = "wpinv_{$option['type']}_callback";
     $section    = "wpinv_settings_{$tab}_$section";
-	$is_wizzard = is_admin() && isset( $_GET['page'] ) && 'gp-setup' == $_GET['page'];
+	$is_wizzard = is_admin() && isset($_GET['page']) && 'gp-setup' == $_GET['page'];
 
-	if ( isset( $option['desc'] ) && ( ! $is_wizzard && ! empty( $option['help-tip'] ) ) ) {
-		$tip   = wpinv_clean( $option['desc'] );
+	if (isset($option['desc']) && (!$is_wizzard && !empty($option['help-tip']))) {
+		$tip   = wpinv_clean($option['desc']);
 		$name .= "<span class='dashicons dashicons-editor-help wpi-help-tip' title='$tip'></span>";
-		unset( $option['desc'] );
+		unset($option['desc']);
 	}
 
     // Loop through all tabs.
     add_settings_field(
         'wpinv_settings[' . $option['id'] . ']',
         $name,
-        function_exists( $cb ) ? $cb : 'wpinv_missing_callback',
+        function_exists($cb) ? $cb : 'wpinv_missing_callback',
         $section,
         $section,
         array(
             'section'         => $section,
-            'id'              => isset( $option['id'] ) ? $option['id'] : uniqid( 'wpinv-' ),
-            'desc'            => isset( $option['desc'] ) ? $option['desc'] : '',
+            'id'              => isset($option['id']) ? $option['id'] : uniqid('wpinv-'),
+            'desc'            => isset($option['desc']) ? $option['desc'] : '',
             'name'            => $name,
-            'size'            => isset( $option['size'] ) ? $option['size'] : null,
-            'options'         => isset( $option['options'] ) ? $option['options'] : '',
-            'selected'        => isset( $option['selected'] ) ? $option['selected'] : null,
-            'std'             => isset( $option['std'] ) ? $option['std'] : '',
-            'min'             => isset( $option['min'] ) ? $option['min'] : 0,
-            'max'             => isset( $option['max'] ) ? $option['max'] : 999999,
-            'step'            => isset( $option['step'] ) ? $option['step'] : 1,
-            'placeholder'     => isset( $option['placeholder'] ) ? $option['placeholder'] : null,
-            'allow_blank'     => isset( $option['allow_blank'] ) ? $option['allow_blank'] : true,
-            'readonly'        => isset( $option['readonly'] ) ? $option['readonly'] : false,
-            'faux'            => isset( $option['faux'] ) ? $option['faux'] : false,
-            'onchange'        => isset( $option['onchange'] ) ? $option['onchange'] : '',
-            'custom'          => isset( $option['custom'] ) ? $option['custom'] : '',
-			'default_content' => isset( $option['default_content'] ) ? $option['default_content'] : '',
-			'class'           => isset( $option['class'] ) ? $option['class'] : '',
-			'style'           => isset( $option['style'] ) ? $option['style'] : '',
-            'cols'            => isset( $option['cols'] ) && (int) $option['cols'] > 0 ? (int) $option['cols'] : 50,
-            'rows'            => isset( $option['rows'] ) && (int) $option['rows'] > 0 ? (int) $option['rows'] : 5,
+            'size'            => isset($option['size']) ? $option['size'] : null,
+            'options'         => isset($option['options']) ? $option['options'] : '',
+            'selected'        => isset($option['selected']) ? $option['selected'] : null,
+            'std'             => isset($option['std']) ? $option['std'] : '',
+            'min'             => isset($option['min']) ? $option['min'] : 0,
+            'max'             => isset($option['max']) ? $option['max'] : 999999,
+            'step'            => isset($option['step']) ? $option['step'] : 1,
+            'placeholder'     => isset($option['placeholder']) ? $option['placeholder'] : null,
+            'allow_blank'     => isset($option['allow_blank']) ? $option['allow_blank'] : true,
+            'readonly'        => isset($option['readonly']) ? $option['readonly'] : false,
+            'faux'            => isset($option['faux']) ? $option['faux'] : false,
+            'onchange'        => isset($option['onchange']) ? $option['onchange'] : '',
+            'custom'          => isset($option['custom']) ? $option['custom'] : '',
+			'default_content' => isset($option['default_content']) ? $option['default_content'] : '',
+			'class'           => isset($option['class']) ? $option['class'] : '',
+			'style'           => isset($option['style']) ? $option['style'] : '',
+            'cols'            => isset($option['cols']) && (int) $option['cols'] > 0 ? (int) $option['cols'] : 50,
+            'rows'            => isset($option['rows']) && (int) $option['rows'] > 0 ? (int) $option['rows'] : 5,
         )
     );
 
@@ -246,7 +246,7 @@ 
  * @return array
  */
 function wpinv_get_registered_settings() {
-	return array_filter( apply_filters( 'wpinv_registered_settings', wpinv_get_data( 'admin-settings' ) ) );
+	return array_filter(apply_filters('wpinv_registered_settings', wpinv_get_data('admin-settings')));
 }
 
 /**
@@ -255,7 +255,7 @@ 
  * @return array
  */
 function getpaid_get_integration_settings() {
-    return apply_filters( 'getpaid_integration_settings', array() );
+    return apply_filters('getpaid_integration_settings', array());
 }
 
 /**
@@ -263,153 +263,153 @@ 
  *
  * @return array
  */
-function wpinv_settings_sanitize( $input = array() ) {
+function wpinv_settings_sanitize($input = array()) {
 
 	$wpinv_options = wpinv_get_options();
 	$raw_referrer  = wp_get_raw_referer();
 
-    if ( empty( $raw_referrer ) ) {
-		return array_merge( $wpinv_options, $input );
+    if (empty($raw_referrer)) {
+		return array_merge($wpinv_options, $input);
     }
 
-    wp_parse_str( $raw_referrer, $referrer );
+    wp_parse_str($raw_referrer, $referrer);
 
-	if ( in_array( 'gp-setup', $referrer ) ) {
-		return array_merge( $wpinv_options, $input );
+	if (in_array('gp-setup', $referrer)) {
+		return array_merge($wpinv_options, $input);
 	}
 
     $settings = wpinv_get_registered_settings();
-    $tab      = isset( $referrer['tab'] ) ? $referrer['tab'] : 'general';
-    $section  = isset( $referrer['section'] ) ? $referrer['section'] : 'main';
+    $tab      = isset($referrer['tab']) ? $referrer['tab'] : 'general';
+    $section  = isset($referrer['section']) ? $referrer['section'] : 'main';
 
     $input = $input ? $input : array();
-    $input = apply_filters( 'wpinv_settings_tab_' . $tab . '_sanitize', $input );
-    $input = apply_filters( 'wpinv_settings_' . $tab . '-' . $section . '_sanitize', $input );
+    $input = apply_filters('wpinv_settings_tab_' . $tab . '_sanitize', $input);
+    $input = apply_filters('wpinv_settings_' . $tab . '-' . $section . '_sanitize', $input);
 
     // Loop through each setting being saved and pass it through a sanitization filter
-    foreach ( $input as $key => $value ) {
+    foreach ($input as $key => $value) {
 
         // Get the setting type (checkbox, select, etc)
-        $type = isset( $settings[ $tab ][ $section ][ $key ]['type'] ) ? $settings[ $tab ][ $section ][ $key ]['type'] : false;
+        $type = isset($settings[$tab][$section][$key]['type']) ? $settings[$tab][$section][$key]['type'] : false;
 
-        if ( $type ) {
+        if ($type) {
             // Field type specific filter
-            $input[ $key ] = apply_filters( "wpinv_settings_sanitize_$type", $value, $key );
+            $input[$key] = apply_filters("wpinv_settings_sanitize_$type", $value, $key);
         }
 
         // General filter
-		$input[ $key ] = apply_filters( 'wpinv_settings_sanitize', $input[ $key ], $key );
+		$input[$key] = apply_filters('wpinv_settings_sanitize', $input[$key], $key);
 
 		// Key specific filter.
-		$input[ $key ] = apply_filters( "wpinv_settings_sanitize_$key", $input[ $key ] );
+		$input[$key] = apply_filters("wpinv_settings_sanitize_$key", $input[$key]);
     }
 
     // Loop through the whitelist and unset any that are empty for the tab being saved
-    $main_settings    = isset( $settings[ $tab ] ) ? $settings[ $tab ] : array(); // Check for extensions that aren't using new sections
-    $section_settings = ! empty( $settings[ $tab ][ $section ] ) ? $settings[ $tab ][ $section ] : array();
+    $main_settings    = isset($settings[$tab]) ? $settings[$tab] : array(); // Check for extensions that aren't using new sections
+    $section_settings = !empty($settings[$tab][$section]) ? $settings[$tab][$section] : array();
 
-    $found_settings   = array_merge( $main_settings, $section_settings );
+    $found_settings   = array_merge($main_settings, $section_settings);
 
-    if ( ! empty( $found_settings ) ) {
-        foreach ( $found_settings as $key => $value ) {
+    if (!empty($found_settings)) {
+        foreach ($found_settings as $key => $value) {
 
             // settings used to have numeric keys, now they have keys that match the option ID. This ensures both methods work
-            if ( is_numeric( $key ) ) {
+            if (is_numeric($key)) {
                 $key = $value['id'];
             }
 
-            if ( ! isset( $input[ $key ] ) && isset( $wpinv_options[ $key ] ) ) {
-                unset( $wpinv_options[ $key ] );
+            if (!isset($input[$key]) && isset($wpinv_options[$key])) {
+                unset($wpinv_options[$key]);
             }
         }
     }
 
     // Merge our new settings with the existing
-    $output = array_merge( $wpinv_options, $input );
+    $output = array_merge($wpinv_options, $input);
 
-    add_settings_error( 'wpinv-notices', '', __( 'Settings updated.', 'invoicing' ), 'updated' );
+    add_settings_error('wpinv-notices', '', __('Settings updated.', 'invoicing'), 'updated');
 
     return $output;
 }
-add_filter( 'wpinv_settings_sanitize_text', 'trim', 10, 1 );
-add_filter( 'wpinv_settings_sanitize_tax_rate', 'wpinv_sanitize_amount' );
+add_filter('wpinv_settings_sanitize_text', 'trim', 10, 1);
+add_filter('wpinv_settings_sanitize_tax_rate', 'wpinv_sanitize_amount');
 
-function wpinv_settings_sanitize_tax_rates( $input ) {
-    if ( ! wpinv_current_user_can_manage_invoicing() ) {
+function wpinv_settings_sanitize_tax_rates($input) {
+    if (!wpinv_current_user_can_manage_invoicing()) {
         return $input;
     }
 
-    $new_rates = ! empty( $_POST['tax_rates'] ) ? wp_kses_post_deep( array_values( $_POST['tax_rates'] ) ) : array();
+    $new_rates = !empty($_POST['tax_rates']) ? wp_kses_post_deep(array_values($_POST['tax_rates'])) : array();
     $tax_rates = array();
 
-    foreach ( $new_rates as $rate ) {
+    foreach ($new_rates as $rate) {
 
-		$rate['rate']    = wpinv_sanitize_amount( $rate['rate'] );
-		$rate['name']    = sanitize_text_field( $rate['name'] );
-		$rate['state']   = sanitize_text_field( $rate['state'] );
-		$rate['country'] = sanitize_text_field( $rate['country'] );
-		$rate['global']  = empty( $rate['state'] );
+		$rate['rate']    = wpinv_sanitize_amount($rate['rate']);
+		$rate['name']    = sanitize_text_field($rate['name']);
+		$rate['state']   = sanitize_text_field($rate['state']);
+		$rate['country'] = sanitize_text_field($rate['country']);
+		$rate['global']  = empty($rate['state']);
 		$tax_rates[]     = $rate;
 
 	}
 
-    update_option( 'wpinv_tax_rates', $tax_rates );
+    update_option('wpinv_tax_rates', $tax_rates);
 
     return $input;
 }
-add_filter( 'wpinv_settings_taxes-rates_sanitize', 'wpinv_settings_sanitize_tax_rates' );
+add_filter('wpinv_settings_taxes-rates_sanitize', 'wpinv_settings_sanitize_tax_rates');
 
-function wpinv_settings_sanitize_tax_rules( $input ) {
-    if ( ! wpinv_current_user_can_manage_invoicing() ) {
+function wpinv_settings_sanitize_tax_rules($input) {
+    if (!wpinv_current_user_can_manage_invoicing()) {
         return $input;
     }
 
-	if ( empty( $_POST['wpinv_tax_rules_nonce'] ) || ! wp_verify_nonce( $_POST['wpinv_tax_rules_nonce'], 'wpinv_tax_rules' ) ) {
+	if (empty($_POST['wpinv_tax_rules_nonce']) || !wp_verify_nonce($_POST['wpinv_tax_rules_nonce'], 'wpinv_tax_rules')) {
 		return $input;
 	}
 
-    $new_rules = ! empty( $_POST['tax_rules'] ) ? wp_kses_post_deep( array_values( $_POST['tax_rules'] ) ) : array();
+    $new_rules = !empty($_POST['tax_rules']) ? wp_kses_post_deep(array_values($_POST['tax_rules'])) : array();
     $tax_rules = array();
 
-    foreach ( $new_rules as $rule ) {
+    foreach ($new_rules as $rule) {
 
-		$rule['key']      = sanitize_title_with_dashes( $rule['key'] );
-		$rule['label']    = sanitize_text_field( $rule['label'] );
-		$rule['tax_base'] = sanitize_text_field( $rule['tax_base'] );
+		$rule['key']      = sanitize_title_with_dashes($rule['key']);
+		$rule['label']    = sanitize_text_field($rule['label']);
+		$rule['tax_base'] = sanitize_text_field($rule['tax_base']);
 		$tax_rules[]      = $rule;
 
 	}
 
-    update_option( 'wpinv_tax_rules', $tax_rules );
+    update_option('wpinv_tax_rules', $tax_rules);
 
     return $input;
 }
-add_filter( 'wpinv_settings_taxes-rules_sanitize', 'wpinv_settings_sanitize_tax_rules' );
+add_filter('wpinv_settings_taxes-rules_sanitize', 'wpinv_settings_sanitize_tax_rules');
 
 function wpinv_get_settings_tabs() {
     $tabs             = array();
-    $tabs['general']  = __( 'General', 'invoicing' );
-    $tabs['gateways'] = __( 'Payment Gateways', 'invoicing' );
-    $tabs['taxes']    = __( 'Taxes', 'invoicing' );
-	$tabs['emails']   = __( 'Emails', 'invoicing' );
+    $tabs['general']  = __('General', 'invoicing');
+    $tabs['gateways'] = __('Payment Gateways', 'invoicing');
+    $tabs['taxes']    = __('Taxes', 'invoicing');
+	$tabs['emails'] = __('Emails', 'invoicing');
 
-	if ( count( getpaid_get_integration_settings() ) > 0 ) {
-		$tabs['integrations'] = __( 'Integrations', 'invoicing' );
+	if (count(getpaid_get_integration_settings()) > 0) {
+		$tabs['integrations'] = __('Integrations', 'invoicing');
 	}
 
-    $tabs['privacy']  = __( 'Privacy', 'invoicing' );
-    $tabs['misc']     = __( 'Misc', 'invoicing' );
-    $tabs['tools']    = __( 'Tools', 'invoicing' );
+    $tabs['privacy']  = __('Privacy', 'invoicing');
+    $tabs['misc']     = __('Misc', 'invoicing');
+    $tabs['tools']    = __('Tools', 'invoicing');
 
-    return apply_filters( 'wpinv_settings_tabs', $tabs );
+    return apply_filters('wpinv_settings_tabs', $tabs);
 }
 
-function wpinv_get_settings_tab_sections( $tab = false ) {
+function wpinv_get_settings_tab_sections($tab = false) {
     $tabs     = false;
     $sections = wpinv_get_registered_settings_sections();
 
-    if ( $tab && ! empty( $sections[ $tab ] ) ) {
-        $tabs = $sections[ $tab ];
+    if ($tab && !empty($sections[$tab])) {
+        $tabs = $sections[$tab];
     }
 
     return $tabs;
@@ -418,7 +418,7 @@ 
 function wpinv_get_registered_settings_sections() {
     static $sections = false;
 
-    if ( false !== $sections ) {
+    if (false !== $sections) {
         return $sections;
     }
 
@@ -426,229 +426,229 @@ 
         'general'      => apply_filters(
             'wpinv_settings_sections_general',
             array(
-				'main'             => __( 'General Settings', 'invoicing' ),
-				'page_section'     => __( 'Page Settings', 'invoicing' ),
-				'currency_section' => __( 'Currency Settings', 'invoicing' ),
-				'labels'           => __( 'Label Texts', 'invoicing' ),
+				'main'             => __('General Settings', 'invoicing'),
+				'page_section'     => __('Page Settings', 'invoicing'),
+				'currency_section' => __('Currency Settings', 'invoicing'),
+				'labels'           => __('Label Texts', 'invoicing'),
             )
         ),
         'gateways'     => apply_filters(
             'wpinv_settings_sections_gateways',
             array(
-				'main' => __( 'Gateway Settings', 'invoicing' ),
+				'main' => __('Gateway Settings', 'invoicing'),
             )
         ),
         'taxes'        => apply_filters(
             'wpinv_settings_sections_taxes',
             array(
-				'main'  => __( 'Tax Settings', 'invoicing' ),
-				'rules' => __( 'Tax Rules', 'invoicing' ),
-				'rates' => __( 'Tax Rates', 'invoicing' ),
-				'vat'   => __( 'EU VAT Settings', 'invoicing' ),
+				'main'  => __('Tax Settings', 'invoicing'),
+				'rules' => __('Tax Rules', 'invoicing'),
+				'rates' => __('Tax Rates', 'invoicing'),
+				'vat'   => __('EU VAT Settings', 'invoicing'),
             )
         ),
         'emails'       => apply_filters(
             'wpinv_settings_sections_emails',
             array(
-				'main' => __( 'Email Settings', 'invoicing' ),
+				'main' => __('Email Settings', 'invoicing'),
             )
         ),
 
-		'integrations' => wp_list_pluck( getpaid_get_integration_settings(), 'label', 'id' ),
+		'integrations' => wp_list_pluck(getpaid_get_integration_settings(), 'label', 'id'),
 
         'privacy'      => apply_filters(
             'wpinv_settings_sections_privacy',
             array(
-				'main' => __( 'Privacy policy', 'invoicing' ),
+				'main' => __('Privacy policy', 'invoicing'),
             )
         ),
         'misc'         => apply_filters(
             'wpinv_settings_sections_misc',
             array(
-				'main'       => __( 'Miscellaneous', 'invoicing' ),
-				'custom-css' => __( 'Custom CSS', 'invoicing' ),
+				'main'       => __('Miscellaneous', 'invoicing'),
+				'custom-css' => __('Custom CSS', 'invoicing'),
             )
         ),
         'tools'        => apply_filters(
             'wpinv_settings_sections_tools',
             array(
-				'main' => __( 'Diagnostic Tools', 'invoicing' ),
+				'main' => __('Diagnostic Tools', 'invoicing'),
             )
         ),
     );
 
-    $sections = apply_filters( 'wpinv_settings_sections', $sections );
+    $sections = apply_filters('wpinv_settings_sections', $sections);
 
     return $sections;
 }
 
-function wpinv_get_pages( $with_slug = false, $default_label = null ) {
+function wpinv_get_pages($with_slug = false, $default_label = null) {
 	$pages_options = array();
 
-	if ( $default_label !== null && $default_label !== false ) {
-		$pages_options = array( '' => $default_label ); // Blank option
+	if ($default_label !== null && $default_label !== false) {
+		$pages_options = array('' => $default_label); // Blank option
 	}
 
 	$pages = get_pages();
-	if ( $pages ) {
-		foreach ( $pages as $page ) {
+	if ($pages) {
+		foreach ($pages as $page) {
 			$title = $with_slug ? $page->post_title . ' (' . $page->post_name . ')' : $page->post_title;
-            $pages_options[ $page->ID ] = $title;
+            $pages_options[$page->ID] = $title;
 		}
 	}
 
 	return $pages_options;
 }
 
-function wpinv_header_callback( $args ) {
-	if ( ! empty( $args['desc'] ) ) {
-        echo wp_kses_post( $args['desc'] );
+function wpinv_header_callback($args) {
+	if (!empty($args['desc'])) {
+        echo wp_kses_post($args['desc']);
     }
 }
 
-function wpinv_hidden_callback( $args ) {
+function wpinv_hidden_callback($args) {
 
-	$std     = isset( $args['std'] ) ? $args['std'] : '';
-	$value   = wpinv_get_option( $args['id'], $std );
+	$std     = isset($args['std']) ? $args['std'] : '';
+	$value   = wpinv_get_option($args['id'], $std);
 
-	if ( isset( $args['set_value'] ) ) {
+	if (isset($args['set_value'])) {
 		$value = $args['set_value'];
 	}
 
-	if ( isset( $args['faux'] ) && true === $args['faux'] ) {
+	if (isset($args['faux']) && true === $args['faux']) {
 		$args['readonly'] = true;
-		$name  = '';
+		$name = '';
 	} else {
-		$name = 'wpinv_settings[' . esc_attr( $args['id'] ) . ']';
+		$name = 'wpinv_settings[' . esc_attr($args['id']) . ']';
 	}
 
-	echo '<input type="hidden" id="wpinv_settings[' . esc_attr( $args['id'] ) . ']" name="' . esc_attr( $name ) . '" value="' . esc_attr( stripslashes( $value ) ) . '" />';
+	echo '<input type="hidden" id="wpinv_settings[' . esc_attr($args['id']) . ']" name="' . esc_attr($name) . '" value="' . esc_attr(stripslashes($value)) . '" />';
 
 }
 
 /**
  * Displays a checkbox settings callback.
  */
-function wpinv_checkbox_callback( $args ) {
+function wpinv_checkbox_callback($args) {
 
-	$std = isset( $args['std'] ) ? $args['std'] : '';
-	$std = wpinv_get_option( $args['id'], $std );
-	$id  = esc_attr( $args['id'] );
+	$std = isset($args['std']) ? $args['std'] : '';
+	$std = wpinv_get_option($args['id'], $std);
+	$id  = esc_attr($args['id']);
 
-	getpaid_hidden_field( "wpinv_settings[$id]", '0' );
+	getpaid_hidden_field("wpinv_settings[$id]", '0');
 	?>
 		<label>
-			<input id="wpinv-settings-<?php echo esc_attr( $id ); ?>" name="wpinv_settings[<?php echo esc_attr( $id ); ?>]" <?php checked( empty( $std ), false ); ?> value="1" type="checkbox" />
-			<?php echo wp_kses_post( $args['desc'] ); ?>
+			<input id="wpinv-settings-<?php echo esc_attr($id); ?>" name="wpinv_settings[<?php echo esc_attr($id); ?>]" <?php checked(empty($std), false); ?> value="1" type="checkbox" />
+			<?php echo wp_kses_post($args['desc']); ?>
 		</label>
 	<?php
 }
 
-function wpinv_multicheck_callback( $args ) {
+function wpinv_multicheck_callback($args) {
 
-	$sanitize_id = wpinv_sanitize_key( $args['id'] );
-	$class = ! empty( $args['class'] ) ? ' ' . esc_attr( $args['class'] ) : '';
+	$sanitize_id = wpinv_sanitize_key($args['id']);
+	$class = !empty($args['class']) ? ' ' . esc_attr($args['class']) : '';
 
-	if ( ! empty( $args['options'] ) ) {
+	if (!empty($args['options'])) {
 
-		$std     = isset( $args['std'] ) ? $args['std'] : array();
-		$value   = wpinv_get_option( $args['id'], $std );
+		$std     = isset($args['std']) ? $args['std'] : array();
+		$value   = wpinv_get_option($args['id'], $std);
 
-		echo '<div class="wpi-mcheck-rows wpi-mcheck-' . esc_attr( $sanitize_id . $class ) . '">';
-        foreach ( $args['options'] as $key => $option ) :
-			$sanitize_key = esc_attr( wpinv_sanitize_key( $key ) );
-			if ( in_array( $sanitize_key, $value ) ) {
+		echo '<div class="wpi-mcheck-rows wpi-mcheck-' . esc_attr($sanitize_id . $class) . '">';
+        foreach ($args['options'] as $key => $option) :
+			$sanitize_key = esc_attr(wpinv_sanitize_key($key));
+			if (in_array($sanitize_key, $value)) {
 				$enabled = $sanitize_key;
 			} else {
 				$enabled = null;
 			}
-			echo '<div class="wpi-mcheck-row"><input name="wpinv_settings[' . esc_attr( $sanitize_id ) . '][' . esc_attr( $sanitize_key ) . ']" id="wpinv_settings[' . esc_attr( $sanitize_id ) . '][' . esc_attr( $sanitize_key ) . ']" type="checkbox" value="' . esc_attr( $sanitize_key ) . '" ' . checked( $sanitize_key, $enabled, false ) . '/>&nbsp;';
-			echo '<label for="wpinv_settings[' . esc_attr( $sanitize_id ) . '][' . esc_attr( $sanitize_key ) . ']">' . wp_kses_post( $option ) . '</label></div>';
+			echo '<div class="wpi-mcheck-row"><input name="wpinv_settings[' . esc_attr($sanitize_id) . '][' . esc_attr($sanitize_key) . ']" id="wpinv_settings[' . esc_attr($sanitize_id) . '][' . esc_attr($sanitize_key) . ']" type="checkbox" value="' . esc_attr($sanitize_key) . '" ' . checked($sanitize_key, $enabled, false) . '/>&nbsp;';
+			echo '<label for="wpinv_settings[' . esc_attr($sanitize_id) . '][' . esc_attr($sanitize_key) . ']">' . wp_kses_post($option) . '</label></div>';
 		endforeach;
 		echo '</div>';
-		echo '<p class="description">' . wp_kses_post( $args['desc'] ) . '</p>';
+		echo '<p class="description">' . wp_kses_post($args['desc']) . '</p>';
 	}
 }
 
-function wpinv_payment_icons_callback( $args ) {
+function wpinv_payment_icons_callback($args) {
 
-    $sanitize_id = wpinv_sanitize_key( $args['id'] );
-	$value   = wpinv_get_option( $args['id'], false );
+    $sanitize_id = wpinv_sanitize_key($args['id']);
+	$value = wpinv_get_option($args['id'], false);
 
-	if ( ! empty( $args['options'] ) ) {
-		foreach ( $args['options'] as $key => $option ) {
-            $sanitize_key = wpinv_sanitize_key( $key );
+	if (!empty($args['options'])) {
+		foreach ($args['options'] as $key => $option) {
+            $sanitize_key = wpinv_sanitize_key($key);
 
-			if ( empty( $value ) ) {
+			if (empty($value)) {
 				$enabled = $option;
 			} else {
 				$enabled = null;
 			}
 
-			echo '<label for="wpinv_settings[' . esc_attr( $sanitize_id ) . '][' . esc_attr( $sanitize_key ) . ']" style="margin-right:10px;line-height:16px;height:16px;display:inline-block;">';
+			echo '<label for="wpinv_settings[' . esc_attr($sanitize_id) . '][' . esc_attr($sanitize_key) . ']" style="margin-right:10px;line-height:16px;height:16px;display:inline-block;">';
 
-				echo '<input name="wpinv_settings[' . esc_attr( $sanitize_id ) . '][' . esc_attr( $sanitize_key ) . ']" id="wpinv_settings[' . esc_attr( $sanitize_id ) . '][' . esc_attr( $sanitize_key ) . ']" type="checkbox" value="' . esc_attr( $option ) . '" ' . checked( $option, $enabled, false ) . '/>&nbsp;';
+				echo '<input name="wpinv_settings[' . esc_attr($sanitize_id) . '][' . esc_attr($sanitize_key) . ']" id="wpinv_settings[' . esc_attr($sanitize_id) . '][' . esc_attr($sanitize_key) . ']" type="checkbox" value="' . esc_attr($option) . '" ' . checked($option, $enabled, false) . '/>&nbsp;';
 
-				if ( wpinv_string_is_image_url( $key ) ) {
-				echo '<img class="payment-icon" src="' . esc_url( $key ) . '" style="width:32px;height:24px;position:relative;top:6px;margin-right:5px;"/>';
+				if (wpinv_string_is_image_url($key)) {
+				echo '<img class="payment-icon" src="' . esc_url($key) . '" style="width:32px;height:24px;position:relative;top:6px;margin-right:5px;"/>';
 				} else {
-				$card = strtolower( str_replace( ' ', '', $option ) );
+				$card = strtolower(str_replace(' ', '', $option));
 
-				if ( has_filter( 'wpinv_accepted_payment_' . $card . '_image' ) ) {
-					$image = apply_filters( 'wpinv_accepted_payment_' . $card . '_image', '' );
+				if (has_filter('wpinv_accepted_payment_' . $card . '_image')) {
+					$image = apply_filters('wpinv_accepted_payment_' . $card . '_image', '');
 					} else {
-					$image       = wpinv_locate_template( 'images' . DIRECTORY_SEPARATOR . 'icons' . DIRECTORY_SEPARATOR . $card . '.gif', false );
+					$image       = wpinv_locate_template('images' . DIRECTORY_SEPARATOR . 'icons' . DIRECTORY_SEPARATOR . $card . '.gif', false);
 					$content_dir = WP_CONTENT_DIR;
 
-					if ( function_exists( 'wp_normalize_path' ) ) {
+					if (function_exists('wp_normalize_path')) {
 						// Replaces backslashes with forward slashes for Windows systems
-						$image = wp_normalize_path( $image );
-						$content_dir = wp_normalize_path( $content_dir );
+						$image = wp_normalize_path($image);
+						$content_dir = wp_normalize_path($content_dir);
 						}
 
-					$image = str_replace( $content_dir, content_url(), $image );
+					$image = str_replace($content_dir, content_url(), $image);
 					}
 
-				echo '<img class="payment-icon" src="' . esc_url( $image ) . '" style="width:32px;height:24px;position:relative;top:6px;margin-right:5px;"/>';
+				echo '<img class="payment-icon" src="' . esc_url($image) . '" style="width:32px;height:24px;position:relative;top:6px;margin-right:5px;"/>';
 				}
-			echo wp_kses_post( $option ) . '</label>';
+			echo wp_kses_post($option) . '</label>';
 		}
-		echo '<p class="description" style="margin-top:16px;">' . wp_kses_post( $args['desc'] ) . '</p>';
+		echo '<p class="description" style="margin-top:16px;">' . wp_kses_post($args['desc']) . '</p>';
 	}
 }
 
 /**
  * Displays a radio settings field.
  */
-function wpinv_radio_callback( $args ) {
+function wpinv_radio_callback($args) {
 
-	$std = isset( $args['std'] ) ? $args['std'] : '';
-	$std = wpinv_get_option( $args['id'], $std );
+	$std = isset($args['std']) ? $args['std'] : '';
+	$std = wpinv_get_option($args['id'], $std);
 	?>
 		<fieldset>
-			<ul id="wpinv-settings-<?php echo esc_attr( $args['id'] ); ?>" style="margin-top: 0;">
-				<?php foreach ( $args['options'] as $key => $option ) : ?>
+			<ul id="wpinv-settings-<?php echo esc_attr($args['id']); ?>" style="margin-top: 0;">
+				<?php foreach ($args['options'] as $key => $option) : ?>
 					<li>
 						<label>
-							<input name="wpinv_settings[<?php echo esc_attr( $args['id'] ); ?>]" <?php checked( $std, $key ); ?> value="<?php echo esc_attr( $key ); ?>" type="radio">
-							<?php echo wp_kses_post( $option ); ?>
+							<input name="wpinv_settings[<?php echo esc_attr($args['id']); ?>]" <?php checked($std, $key); ?> value="<?php echo esc_attr($key); ?>" type="radio">
+							<?php echo wp_kses_post($option); ?>
 						</label>
 					</li>
 				<?php endforeach; ?>
 			</ul>
 		</fieldset>
 	<?php
-	getpaid_settings_description_callback( $args );
+	getpaid_settings_description_callback($args);
 }
 
 /**
  * Displays a description if available.
  */
-function getpaid_settings_description_callback( $args ) {
+function getpaid_settings_description_callback($args) {
 
-	if ( ! empty( $args['desc'] ) ) {
+	if (!empty($args['desc'])) {
 		$description = $args['desc'];
-		echo wp_kses_post( "<p class='description'>$description</p>" );
+		echo wp_kses_post("<p class='description'>$description</p>");
 	}
 
 }
@@ -663,35 +663,35 @@ 
 	</tr>
 	<tr class="bsui">
     	<td colspan="2" class="p-0">
-			<?php include plugin_dir_path( __FILE__ ) . 'views/html-gateways-edit.php'; ?>
+			<?php include plugin_dir_path(__FILE__) . 'views/html-gateways-edit.php'; ?>
 
 	<?php
 }
 
-function wpinv_gateway_select_callback( $args ) {
+function wpinv_gateway_select_callback($args) {
 
-    $sanitize_id = wpinv_sanitize_key( $args['id'] );
-    $class = ! empty( $args['class'] ) ? ' ' . esc_attr( $args['class'] ) : '';
-	$std     = isset( $args['std'] ) ? $args['std'] : '';
-	$value   = wpinv_get_option( $args['id'], $std );
+    $sanitize_id = wpinv_sanitize_key($args['id']);
+    $class = !empty($args['class']) ? ' ' . esc_attr($args['class']) : '';
+	$std     = isset($args['std']) ? $args['std'] : '';
+	$value   = wpinv_get_option($args['id'], $std);
 
-	echo '<select name="wpinv_settings[' . esc_attr( $sanitize_id ) . ']"" id="wpinv_settings[' . esc_attr( $sanitize_id ) . ']" class="' . esc_attr( $class ) . '" >';
+	echo '<select name="wpinv_settings[' . esc_attr($sanitize_id) . ']"" id="wpinv_settings[' . esc_attr($sanitize_id) . ']" class="' . esc_attr($class) . '" >';
 
-	foreach ( $args['options'] as $key => $option ) :
+	foreach ($args['options'] as $key => $option) :
 
-		echo '<option value="' . esc_attr( $key ) . '" ';
+		echo '<option value="' . esc_attr($key) . '" ';
 
-		if ( isset( $args['selected'] ) && $args['selected'] !== null && $args['selected'] !== false ) {
-            selected( $key, $args['selected'] );
+		if (isset($args['selected']) && $args['selected'] !== null && $args['selected'] !== false) {
+            selected($key, $args['selected']);
         } else {
-            selected( $key, $value );
+            selected($key, $value);
         }
 
-		echo '>' . esc_html( $option['admin_label'] ) . '</option>';
+		echo '>' . esc_html($option['admin_label']) . '</option>';
 	endforeach;
 
 	echo '</select>';
-	echo '<label for="wpinv_settings[' . esc_attr( $sanitize_id ) . ']"> ' . wp_kses_post( $args['desc'] ) . '</label>';
+	echo '<label for="wpinv_settings[' . esc_attr($sanitize_id) . ']"> ' . wp_kses_post($args['desc']) . '</label>';
 }
 
 /**
@@ -700,16 +700,16 @@ 
  * @param array $args
  * @return string
  */
-function wpinv_settings_attrs_helper( $args ) {
+function wpinv_settings_attrs_helper($args) {
 
-	$value = isset( $args['std'] ) ? $args['std'] : '';
-	$id    = esc_attr( $args['id'] );
-	$value = is_scalar( $value ) ? $value : '';
+	$value = isset($args['std']) ? $args['std'] : '';
+	$id    = esc_attr($args['id']);
+	$value = is_scalar($value) ? $value : '';
 
 	$attrs = array(
-		'name'     => ! empty( $args['faux'] ) ? false : "wpinv_settings[$id]",
-		'readonly' => ! empty( $args['faux'] ),
-		'value'    => ! empty( $args['faux'] ) ? $value : wpinv_get_option( $args['id'], $value ),
+		'name'     => !empty($args['faux']) ? false : "wpinv_settings[$id]",
+		'readonly' => !empty($args['faux']),
+		'value'    => !empty($args['faux']) ? $value : wpinv_get_option($args['id'], $value),
 		'id'       => 'wpinv-settings-' . $args['id'],
 		'style'    => $args['style'],
 		'class'    => $args['class'],
@@ -717,20 +717,20 @@ 
 		'data-placeholder' => $args['placeholder'],
 	);
 
-	if ( ! empty( $args['onchange'] ) ) {
+	if (!empty($args['onchange'])) {
 		$attrs['onchange'] = $args['onchange'];
 	}
 
-	foreach ( $attrs as $key => $value ) {
+	foreach ($attrs as $key => $value) {
 
-		if ( false === $value ) {
+		if (false === $value) {
 			continue;
 		}
 
-		if ( true === $value ) {
-			echo ' ' . esc_attr( $key );
+		if (true === $value) {
+			echo ' ' . esc_attr($key);
 		} else {
-			echo ' ' . esc_attr( $key ) . '="' . esc_attr( $value ) . '"';
+			echo ' ' . esc_attr($key) . '="' . esc_attr($value) . '"';
 		}
 
 	}
@@ -740,12 +740,12 @@ 
 /**
  * Displays a text input settings callback.
  */
-function wpinv_text_callback( $args ) {
+function wpinv_text_callback($args) {
 
 	?>
 		<label style="width: 100%;">
-			<input type="text" <?php wpinv_settings_attrs_helper( $args ); ?>>
-			<?php getpaid_settings_description_callback( $args ); ?>
+			<input type="text" <?php wpinv_settings_attrs_helper($args); ?>>
+			<?php getpaid_settings_description_callback($args); ?>
 		</label>
 	<?php
 
@@ -754,174 +754,174 @@ 
 /**
  * Displays a number input settings callback.
  */
-function wpinv_number_callback( $args ) {
+function wpinv_number_callback($args) {
 
 	?>
 		<label style="width: 100%;">
-			<input type="number" step="<?php echo esc_attr( $args['step'] ); ?>" max="<?php echo intval( $args['max'] ); ?>" min="<?php echo intval( $args['min'] ); ?>" <?php wpinv_settings_attrs_helper( $args ); ?>>
-			<?php getpaid_settings_description_callback( $args ); ?>
+			<input type="number" step="<?php echo esc_attr($args['step']); ?>" max="<?php echo intval($args['max']); ?>" min="<?php echo intval($args['min']); ?>" <?php wpinv_settings_attrs_helper($args); ?>>
+			<?php getpaid_settings_description_callback($args); ?>
 		</label>
 	<?php
 
 }
 
-function wpinv_textarea_callback( $args ) {
+function wpinv_textarea_callback($args) {
 
-    $sanitize_id = wpinv_sanitize_key( $args['id'] );
-	$std     = isset( $args['std'] ) ? $args['std'] : '';
-	$value   = wpinv_get_option( $args['id'], $std );
+    $sanitize_id = wpinv_sanitize_key($args['id']);
+	$std     = isset($args['std']) ? $args['std'] : '';
+	$value   = wpinv_get_option($args['id'], $std);
 
-    $size = ( isset( $args['size'] ) && ! is_null( $args['size'] ) ) ? $args['size'] : 'regular';
-    $class = ( isset( $args['class'] ) && ! is_null( $args['class'] ) ) ? $args['class'] : 'large-text';
+    $size = (isset($args['size']) && !is_null($args['size'])) ? $args['size'] : 'regular';
+    $class = (isset($args['class']) && !is_null($args['class'])) ? $args['class'] : 'large-text';
 
-	echo '<textarea class="' . esc_attr( $class ) . ' txtarea-' . esc_attr( $size ) . ' wpi-' . esc_attr( sanitize_html_class( $sanitize_id ) ) . ' " cols="' . esc_attr( $args['cols'] ) . '" rows="' . esc_attr( $args['rows'] ) . '" id="wpinv_settings[' . esc_attr( $sanitize_id ) . ']" name="wpinv_settings[' . esc_attr( $args['id'] ) . ']">' . esc_textarea( stripslashes( $value ) ) . '</textarea>';
-	echo '<br /><label for="wpinv_settings[' . esc_attr( $sanitize_id ) . ']"> ' . wp_kses_post( $args['desc'] ) . '</label>';
+	echo '<textarea class="' . esc_attr($class) . ' txtarea-' . esc_attr($size) . ' wpi-' . esc_attr(sanitize_html_class($sanitize_id)) . ' " cols="' . esc_attr($args['cols']) . '" rows="' . esc_attr($args['rows']) . '" id="wpinv_settings[' . esc_attr($sanitize_id) . ']" name="wpinv_settings[' . esc_attr($args['id']) . ']">' . esc_textarea(stripslashes($value)) . '</textarea>';
+	echo '<br /><label for="wpinv_settings[' . esc_attr($sanitize_id) . ']"> ' . wp_kses_post($args['desc']) . '</label>';
 
 }
 
-function wpinv_password_callback( $args ) {
+function wpinv_password_callback($args) {
 
-    $sanitize_id = wpinv_sanitize_key( $args['id'] );
-	$std     = isset( $args['std'] ) ? $args['std'] : '';
-	$value   = wpinv_get_option( $args['id'], $std );
+    $sanitize_id = wpinv_sanitize_key($args['id']);
+	$std     = isset($args['std']) ? $args['std'] : '';
+	$value   = wpinv_get_option($args['id'], $std);
 
-	$size = ( isset( $args['size'] ) && ! is_null( $args['size'] ) ) ? $args['size'] : 'regular';
-	echo '<input type="password" class="' . esc_attr( $size ) . '-text" id="wpinv_settings[' . esc_attr( $sanitize_id ) . ']" name="wpinv_settings[' . esc_attr( $args['id'] ) . ']" value="' . esc_attr( $value ) . '"/>';
-	echo '<label for="wpinv_settings[' . esc_attr( $sanitize_id ) . ']"> ' . wp_kses_post( $args['desc'] ) . '</label>';
+	$size = (isset($args['size']) && !is_null($args['size'])) ? $args['size'] : 'regular';
+	echo '<input type="password" class="' . esc_attr($size) . '-text" id="wpinv_settings[' . esc_attr($sanitize_id) . ']" name="wpinv_settings[' . esc_attr($args['id']) . ']" value="' . esc_attr($value) . '"/>';
+	echo '<label for="wpinv_settings[' . esc_attr($sanitize_id) . ']"> ' . wp_kses_post($args['desc']) . '</label>';
 
 }
 
-function wpinv_missing_callback( $args ) {
+function wpinv_missing_callback($args) {
 	printf(
-		esc_html__( 'The callback function used for the %s setting is missing.', 'invoicing' ),
-		'<strong>' . esc_html( $args['id'] ) . '</strong>'
+		esc_html__('The callback function used for the %s setting is missing.', 'invoicing'),
+		'<strong>' . esc_html($args['id']) . '</strong>'
 	);
 }
 
 /**
  * Displays a number input settings callback.
  */
-function wpinv_select_callback( $args ) {
+function wpinv_select_callback($args) {
 
-	$desc   = wp_kses_post( $args['desc'] );
-	$desc   = empty( $desc ) ? '' : "<p class='description'>$desc</p>";
-	$value  = isset( $args['std'] ) ? $args['std'] : '';
-	$value  = wpinv_get_option( $args['id'], $value );
-	$rand   = uniqid( 'random_id' );
+	$desc   = wp_kses_post($args['desc']);
+	$desc   = empty($desc) ? '' : "<p class='description'>$desc</p>";
+	$value  = isset($args['std']) ? $args['std'] : '';
+	$value  = wpinv_get_option($args['id'], $value);
+	$rand   = uniqid('random_id');
 
 	?>
 		<label style="width: 100%;">
-			<select <?php wpinv_settings_attrs_helper( $args ); ?> data-allow-clear="true">
-				<?php foreach ( $args['options'] as $option => $name ) : ?>
-					<option value="<?php echo esc_attr( $option ); ?>" <?php echo selected( $option, $value ); ?>><?php echo esc_html( $name ); ?></option>
+			<select <?php wpinv_settings_attrs_helper($args); ?> data-allow-clear="true">
+				<?php foreach ($args['options'] as $option => $name) : ?>
+					<option value="<?php echo esc_attr($option); ?>" <?php echo selected($option, $value); ?>><?php echo esc_html($name); ?></option>
 				<?php endforeach; ?>
 			</select>
 
-			<?php if ( substr( $args['id'], -5 ) === '_page' && is_numeric( $value ) ) : ?>
-				<a href="<?php echo esc_url( get_edit_post_link( $value ) ); ?>" target="_blank" class="button getpaid-page-setting-edit"><?php esc_html_e( 'Edit Page', 'invoicing' ); ?></a>
+			<?php if (substr($args['id'], -5) === '_page' && is_numeric($value)) : ?>
+				<a href="<?php echo esc_url(get_edit_post_link($value)); ?>" target="_blank" class="button getpaid-page-setting-edit"><?php esc_html_e('Edit Page', 'invoicing'); ?></a>
 			<?php endif; ?>
 
-			<?php if ( substr( $args['id'], -5 ) === '_page' && ! empty( $args['default_content'] ) ) : ?>
-				&nbsp;<a href="#TB_inline?&width=400&height=550&inlineId=<?php echo esc_attr( $rand ); ?>" class="button thickbox getpaid-page-setting-view-default"><?php esc_html_e( 'View Default Content', 'invoicing' ); ?></a>
-				<div id='<?php echo esc_attr( $rand ); ?>' style='display:none;'>
+			<?php if (substr($args['id'], -5) === '_page' && !empty($args['default_content'])) : ?>
+				&nbsp;<a href="#TB_inline?&width=400&height=550&inlineId=<?php echo esc_attr($rand); ?>" class="button thickbox getpaid-page-setting-view-default"><?php esc_html_e('View Default Content', 'invoicing'); ?></a>
+				<div id='<?php echo esc_attr($rand); ?>' style='display:none;'>
 					<div>
-						<h3><?php esc_html_e( 'Original Content', 'invoicing' ); ?></h3>
-						<textarea readonly onclick="this.select()" rows="8" style="width: 100%;"><?php echo wp_kses_post( gepaid_trim_lines( $args['default_content'] ) ); ?></textarea>
-						<h3><?php esc_html_e( 'Current Content', 'invoicing' ); ?></h3>
-						<textarea readonly onclick="this.select()" rows="8" style="width: 100%;"><?php $_post = get_post( $value ); echo empty( $_post ) ? '' : wp_kses_post( gepaid_trim_lines( $_post->post_content ) ); ?></textarea>
+						<h3><?php esc_html_e('Original Content', 'invoicing'); ?></h3>
+						<textarea readonly onclick="this.select()" rows="8" style="width: 100%;"><?php echo wp_kses_post(gepaid_trim_lines($args['default_content'])); ?></textarea>
+						<h3><?php esc_html_e('Current Content', 'invoicing'); ?></h3>
+						<textarea readonly onclick="this.select()" rows="8" style="width: 100%;"><?php $_post = get_post($value); echo empty($_post) ? '' : wp_kses_post(gepaid_trim_lines($_post->post_content)); ?></textarea>
 					</div>
 				</div>
 			<?php endif; ?>
 
-			<?php echo wp_kses_post( $desc ); ?>
+			<?php echo wp_kses_post($desc); ?>
 		</label>
 	<?php
 
 }
 
-function wpinv_color_select_callback( $args ) {
+function wpinv_color_select_callback($args) {
 
-    $sanitize_id = wpinv_sanitize_key( $args['id'] );
-	$std     = isset( $args['std'] ) ? $args['std'] : '';
-	$value   = wpinv_get_option( $args['id'], $std );
+    $sanitize_id = wpinv_sanitize_key($args['id']);
+	$std     = isset($args['std']) ? $args['std'] : '';
+	$value   = wpinv_get_option($args['id'], $std);
 
-	echo '<select id="wpinv_settings[' . esc_attr( $sanitize_id ) . ']" name="wpinv_settings[' . esc_attr( $args['id'] ) . ']"/>';
+	echo '<select id="wpinv_settings[' . esc_attr($sanitize_id) . ']" name="wpinv_settings[' . esc_attr($args['id']) . ']"/>';
 
-	foreach ( $args['options'] as $option => $color ) {
-		echo '<option value="' . esc_attr( $option ) . '" ' . selected( $option, $value ) . '>' . esc_html( $color['label'] ) . '</option>';
+	foreach ($args['options'] as $option => $color) {
+		echo '<option value="' . esc_attr($option) . '" ' . selected($option, $value) . '>' . esc_html($color['label']) . '</option>';
 	}
 
 	echo '</select>';
-	echo '<label for="wpinv_settings[' . esc_attr( $sanitize_id ) . ']"> ' . wp_kses_post( $args['desc'] ) . '</label>';
+	echo '<label for="wpinv_settings[' . esc_attr($sanitize_id) . ']"> ' . wp_kses_post($args['desc']) . '</label>';
 
 }
 
-function wpinv_rich_editor_callback( $args ) {
+function wpinv_rich_editor_callback($args) {
 	global $wp_version;
 
-    $sanitize_id = wpinv_sanitize_key( $args['id'] );
+    $sanitize_id = wpinv_sanitize_key($args['id']);
 
-	$std     = isset( $args['std'] ) ? $args['std'] : '';
-	$value   = wpinv_get_option( $args['id'], $std );
+	$std     = isset($args['std']) ? $args['std'] : '';
+	$value   = wpinv_get_option($args['id'], $std);
 
-	if ( ! empty( $args['allow_blank'] ) && empty( $value ) ) {
+	if (!empty($args['allow_blank']) && empty($value)) {
 		$value = $std;
 	}
 
-	$rows = isset( $args['size'] ) ? $args['size'] : 20;
+	$rows = isset($args['size']) ? $args['size'] : 20;
 
 	echo '<div class="getpaid-settings-editor-input">';
-	if ( $wp_version >= 3.3 && function_exists( 'wp_editor' ) ) {
+	if ($wp_version >= 3.3 && function_exists('wp_editor')) {
 		wp_editor(
-            stripslashes( $value ),
-            'wpinv_settings_' . esc_attr( $args['id'] ),
+            stripslashes($value),
+            'wpinv_settings_' . esc_attr($args['id']),
             array(
-				'textarea_name' => 'wpinv_settings[' . esc_attr( $args['id'] ) . ']',
-				'textarea_rows' => absint( $rows ),
+				'textarea_name' => 'wpinv_settings[' . esc_attr($args['id']) . ']',
+				'textarea_rows' => absint($rows),
 				'media_buttons' => false,
             )
         );
 	} else {
-		echo '<textarea class="large-text" rows="10" id="wpinv_settings[' . esc_attr( $sanitize_id ) . ']" name="wpinv_settings[' . esc_attr( $args['id'] ) . ']" class="wpi-' . esc_attr( sanitize_html_class( $args['id'] ) ) . '">' . esc_textarea( stripslashes( $value ) ) . '</textarea>';
+		echo '<textarea class="large-text" rows="10" id="wpinv_settings[' . esc_attr($sanitize_id) . ']" name="wpinv_settings[' . esc_attr($args['id']) . ']" class="wpi-' . esc_attr(sanitize_html_class($args['id'])) . '">' . esc_textarea(stripslashes($value)) . '</textarea>';
 	}
 
-	echo '</div><br/><label for="wpinv_settings[' . esc_attr( $sanitize_id ) . ']"> ' . wp_kses_post( $args['desc'] ) . '</label>';
+	echo '</div><br/><label for="wpinv_settings[' . esc_attr($sanitize_id) . ']"> ' . wp_kses_post($args['desc']) . '</label>';
 
 }
 
-function wpinv_upload_callback( $args ) {
+function wpinv_upload_callback($args) {
 
-    $sanitize_id = wpinv_sanitize_key( $args['id'] );
+    $sanitize_id = wpinv_sanitize_key($args['id']);
 
-	$std     = isset( $args['std'] ) ? $args['std'] : '';
-	$value   = wpinv_get_option( $args['id'], $std );
+	$std     = isset($args['std']) ? $args['std'] : '';
+	$value   = wpinv_get_option($args['id'], $std);
 
-	$size = ( isset( $args['size'] ) && ! is_null( $args['size'] ) ) ? $args['size'] : 'regular';
-	echo '<input type="text" class="' . sanitize_html_class( $size ) . '-text" id="wpinv_settings[' . esc_attr( $sanitize_id ) . ']" name="wpinv_settings[' . esc_attr( $args['id'] ) . ']" value="' . esc_attr( stripslashes( $value ) ) . '"/>';
-	echo '<span>&nbsp;<input type="button" class="wpinv_settings_upload_button button-secondary" value="' . esc_attr__( 'Upload File', 'invoicing' ) . '"/></span>';
-	echo '<label for="wpinv_settings[' . esc_attr( $sanitize_id ) . ']"> ' . wp_kses_post( $args['desc'] ) . '</label>';
+	$size = (isset($args['size']) && !is_null($args['size'])) ? $args['size'] : 'regular';
+	echo '<input type="text" class="' . sanitize_html_class($size) . '-text" id="wpinv_settings[' . esc_attr($sanitize_id) . ']" name="wpinv_settings[' . esc_attr($args['id']) . ']" value="' . esc_attr(stripslashes($value)) . '"/>';
+	echo '<span>&nbsp;<input type="button" class="wpinv_settings_upload_button button-secondary" value="' . esc_attr__('Upload File', 'invoicing') . '"/></span>';
+	echo '<label for="wpinv_settings[' . esc_attr($sanitize_id) . ']"> ' . wp_kses_post($args['desc']) . '</label>';
 
 }
 
-function wpinv_color_callback( $args ) {
+function wpinv_color_callback($args) {
 
-	$std         = isset( $args['std'] ) ? $args['std'] : '';
-	$value       = wpinv_get_option( $args['id'], $std );
-    $sanitize_id = wpinv_sanitize_key( $args['id'] );
+	$std         = isset($args['std']) ? $args['std'] : '';
+	$value       = wpinv_get_option($args['id'], $std);
+    $sanitize_id = wpinv_sanitize_key($args['id']);
 
-	echo '<input type="text" class="wpinv-color-picker" id="wpinv_settings[' . esc_attr( $sanitize_id ) . ']" name="wpinv_settings[' . esc_attr( $args['id'] ) . ']" value="' . esc_attr( $value ) . '" data-default-color="' . esc_attr( $std ) . '" />';
-	echo '<label for="wpinv_settings[' . esc_attr( $sanitize_id ) . ']"> ' . wp_kses_post( $args['desc'] ) . '</label>';
+	echo '<input type="text" class="wpinv-color-picker" id="wpinv_settings[' . esc_attr($sanitize_id) . ']" name="wpinv_settings[' . esc_attr($args['id']) . ']" value="' . esc_attr($value) . '" data-default-color="' . esc_attr($std) . '" />';
+	echo '<label for="wpinv_settings[' . esc_attr($sanitize_id) . ']"> ' . wp_kses_post($args['desc']) . '</label>';
 
 }
 
-function wpinv_country_states_callback( $args ) {
+function wpinv_country_states_callback($args) {
 
-	$std     = isset( $args['std'] ) ? $args['std'] : '';
-	$value   = wpinv_get_option( $args['id'], $std );
+	$std     = isset($args['std']) ? $args['std'] : '';
+	$value   = wpinv_get_option($args['id'], $std);
 
-    $sanitize_id = wpinv_sanitize_key( $args['id'] );
+    $sanitize_id = wpinv_sanitize_key($args['id']);
 
-	if ( isset( $args['placeholder'] ) ) {
+	if (isset($args['placeholder'])) {
 		$placeholder = $args['placeholder'];
 	} else {
 		$placeholder = '';
@@ -929,15 +929,15 @@ 
 
 	$states = wpinv_get_country_states();
 
-	$class = empty( $states ) ? 'wpinv-no-states' : 'wpi_select2';
-	echo '<select id="wpinv_settings[' . esc_attr( $sanitize_id ) . ']" name="wpinv_settings[' . esc_attr( $args['id'] ) . ']" class="' . esc_attr( $class ) . '" data-placeholder="' . esc_html( $placeholder ) . '"/>';
+	$class = empty($states) ? 'wpinv-no-states' : 'wpi_select2';
+	echo '<select id="wpinv_settings[' . esc_attr($sanitize_id) . ']" name="wpinv_settings[' . esc_attr($args['id']) . ']" class="' . esc_attr($class) . '" data-placeholder="' . esc_html($placeholder) . '"/>';
 
-	foreach ( $states as $option => $name ) {
-		echo '<option value="' . esc_attr( $option ) . '" ' . selected( $option, $value ) . '>' . esc_html( $name ) . '</option>';
+	foreach ($states as $option => $name) {
+		echo '<option value="' . esc_attr($option) . '" ' . selected($option, $value) . '>' . esc_html($name) . '</option>';
 	}
 
 	echo '</select>';
-	echo '<label for="wpinv_settings[' . esc_attr( $sanitize_id ) . ']"> ' . wp_kses_post( $args['desc'] ) . '</label>';
+	echo '<label for="wpinv_settings[' . esc_attr($sanitize_id) . ']"> ' . wp_kses_post($args['desc']) . '</label>';
 
 }
 
@@ -951,7 +951,7 @@ 
 	</tr>
 	<tr class="bsui">
     	<td colspan="2" class="p-0">
-			<?php include plugin_dir_path( __FILE__ ) . 'views/html-tax-rates-edit.php'; ?>
+			<?php include plugin_dir_path(__FILE__) . 'views/html-tax-rates-edit.php'; ?>
 
 	<?php
 
@@ -960,11 +960,11 @@ 
 /**
  * Displays a tax rate' edit row.
  */
-function wpinv_tax_rate_callback( $tax_rate, $key ) {
+function wpinv_tax_rate_callback($tax_rate, $key) {
 
-	$key                      = sanitize_key( $key );
-	$tax_rate['reduced_rate'] = empty( $tax_rate['reduced_rate'] ) ? 0 : $tax_rate['reduced_rate'];
-	include plugin_dir_path( __FILE__ ) . 'views/html-tax-rate-edit.php';
+	$key                      = sanitize_key($key);
+	$tax_rate['reduced_rate'] = empty($tax_rate['reduced_rate']) ? 0 : $tax_rate['reduced_rate'];
+	include plugin_dir_path(__FILE__) . 'views/html-tax-rate-edit.php';
 
 }
 
@@ -978,177 +978,177 @@ 
 	</tr>
 	<tr class="bsui">
     	<td colspan="2" class="p-0">
-			<?php include plugin_dir_path( __FILE__ ) . 'views/html-tax-rules-edit.php'; ?>
+			<?php include plugin_dir_path(__FILE__) . 'views/html-tax-rules-edit.php'; ?>
 
 	<?php
 
 }
 
-function wpinv_tools_callback( $args ) {
+function wpinv_tools_callback($args) {
     ?>
     </td><tr>
     <td colspan="2" class="wpinv_tools_tdbox">
     <?php
-    if ( $args['desc'] ) {
+    if ($args['desc']) {
 ?>
-<p><?php echo wp_kses_post( $args['desc'] ); ?></p><?php } ?>
-    <?php do_action( 'wpinv_tools_before' ); ?>
+<p><?php echo wp_kses_post($args['desc']); ?></p><?php } ?>
+    <?php do_action('wpinv_tools_before'); ?>
     <table id="wpinv_tools_table" class="wp-list-table widefat fixed posts">
         <thead>
             <tr>
-                <th scope="col" class="wpinv-th-tool"><?php esc_html_e( 'Tool', 'invoicing' ); ?></th>
-                <th scope="col" class="wpinv-th-desc"><?php esc_html_e( 'Description', 'invoicing' ); ?></th>
-                <th scope="col" class="wpinv-th-action"><?php esc_html_e( 'Action', 'invoicing' ); ?></th>
+                <th scope="col" class="wpinv-th-tool"><?php esc_html_e('Tool', 'invoicing'); ?></th>
+                <th scope="col" class="wpinv-th-desc"><?php esc_html_e('Description', 'invoicing'); ?></th>
+                <th scope="col" class="wpinv-th-action"><?php esc_html_e('Action', 'invoicing'); ?></th>
             </tr>
         </thead>
 
         <tbody>
 			<tr>
-                <td><?php esc_html_e( 'Check Pages', 'invoicing' ); ?></td>
+                <td><?php esc_html_e('Check Pages', 'invoicing'); ?></td>
                 <td>
-                    <small><?php esc_html_e( 'Creates any missing GetPaid pages.', 'invoicing' ); ?></small>
+                    <small><?php esc_html_e('Creates any missing GetPaid pages.', 'invoicing'); ?></small>
                 </td>
                 <td>
 					<a href="
                     <?php
 						echo esc_url(
 							wp_nonce_url(
-								add_query_arg( 'getpaid-admin-action', 'create_missing_pages' ),
+								add_query_arg('getpaid-admin-action', 'create_missing_pages'),
 								'getpaid-nonce',
 								'getpaid-nonce'
 							)
 						);
 					?>
-                    " class="button button-primary"><?php esc_html_e( 'Run', 'invoicing' ); ?></a>
+                    " class="button button-primary"><?php esc_html_e('Run', 'invoicing'); ?></a>
                 </td>
             </tr>
 			<tr>
-                <td><?php esc_html_e( 'Refresh Permalinks', 'invoicing' ); ?></td>
+                <td><?php esc_html_e('Refresh Permalinks', 'invoicing'); ?></td>
                 <td>
-                    <small><?php esc_html_e( 'Might fix the page not found error when viewing an invoice.', 'invoicing' ); ?></small>
+                    <small><?php esc_html_e('Might fix the page not found error when viewing an invoice.', 'invoicing'); ?></small>
                 </td>
                 <td>
 					<a href="
                     <?php
 						echo esc_url(
 							wp_nonce_url(
-								add_query_arg( 'getpaid-admin-action', 'refresh_permalinks' ),
+								add_query_arg('getpaid-admin-action', 'refresh_permalinks'),
 								'getpaid-nonce',
 								'getpaid-nonce'
 							)
 						);
 					?>
-                    " class="button button-primary"><?php esc_html_e( 'Run', 'invoicing' ); ?></a>
+                    " class="button button-primary"><?php esc_html_e('Run', 'invoicing'); ?></a>
                 </td>
             </tr>
 			<tr>
-                <td><?php esc_html_e( 'Repair Database Tables', 'invoicing' ); ?></td>
+                <td><?php esc_html_e('Repair Database Tables', 'invoicing'); ?></td>
                 <td>
-                    <small><?php esc_html_e( 'Run this tool to create any missing database tables.', 'invoicing' ); ?></small>
+                    <small><?php esc_html_e('Run this tool to create any missing database tables.', 'invoicing'); ?></small>
                 </td>
                 <td>
 					<a href="
                     <?php
 						echo esc_url(
 							wp_nonce_url(
-								add_query_arg( 'getpaid-admin-action', 'create_missing_tables' ),
+								add_query_arg('getpaid-admin-action', 'create_missing_tables'),
 								'getpaid-nonce',
 								'getpaid-nonce'
 							)
 						);
 					?>
-                    " class="button button-primary"><?php esc_html_e( 'Run', 'invoicing' ); ?></a>
+                    " class="button button-primary"><?php esc_html_e('Run', 'invoicing'); ?></a>
                 </td>
             </tr>
 			<tr>
-                <td><?php esc_html_e( 'Migrate old invoices', 'invoicing' ); ?></td>
+                <td><?php esc_html_e('Migrate old invoices', 'invoicing'); ?></td>
                 <td>
-                    <small><?php esc_html_e( 'If your old invoices were not migrated after updating from Invoicing to GetPaid, you can use this tool to migrate them.', 'invoicing' ); ?></small>
+                    <small><?php esc_html_e('If your old invoices were not migrated after updating from Invoicing to GetPaid, you can use this tool to migrate them.', 'invoicing'); ?></small>
                 </td>
                 <td>
 					<a href="
                     <?php
 						echo esc_url(
 							wp_nonce_url(
-								add_query_arg( 'getpaid-admin-action', 'migrate_old_invoices' ),
+								add_query_arg('getpaid-admin-action', 'migrate_old_invoices'),
 								'getpaid-nonce',
 								'getpaid-nonce'
 							)
 						);
 					?>
-                    " class="button button-primary"><?php esc_html_e( 'Run', 'invoicing' ); ?></a>
+                    " class="button button-primary"><?php esc_html_e('Run', 'invoicing'); ?></a>
                 </td>
             </tr>
 
 			<tr>
-                <td><?php esc_html_e( 'Recalculate Discounts', 'invoicing' ); ?></td>
+                <td><?php esc_html_e('Recalculate Discounts', 'invoicing'); ?></td>
                 <td>
-                    <small><?php esc_html_e( 'Recalculate discounts for existing invoices that have discount codes but are not discounted.', 'invoicing' ); ?></small>
+                    <small><?php esc_html_e('Recalculate discounts for existing invoices that have discount codes but are not discounted.', 'invoicing'); ?></small>
                 </td>
                 <td>
 					<a href="
                     <?php
 						echo esc_url(
 							wp_nonce_url(
-								add_query_arg( 'getpaid-admin-action', 'recalculate_discounts' ),
+								add_query_arg('getpaid-admin-action', 'recalculate_discounts'),
 								'getpaid-nonce',
 								'getpaid-nonce'
 							)
 						);
 					?>
-                    " class="button button-primary"><?php esc_html_e( 'Run', 'invoicing' ); ?></a>
+                    " class="button button-primary"><?php esc_html_e('Run', 'invoicing'); ?></a>
                 </td>
             </tr>
 
 			<tr>
-                <td><?php esc_html_e( 'Set-up Wizard', 'invoicing' ); ?></td>
+                <td><?php esc_html_e('Set-up Wizard', 'invoicing'); ?></td>
                 <td>
-                    <small><?php esc_html_e( 'Launch the quick set-up wizard.', 'invoicing' ); ?></small>
+                    <small><?php esc_html_e('Launch the quick set-up wizard.', 'invoicing'); ?></small>
                 </td>
                 <td>
 					<a href="
                     <?php
-						echo esc_url( admin_url( 'index.php?page=gp-setup' ) );
+						echo esc_url(admin_url('index.php?page=gp-setup'));
 					?>
-                    " class="button button-primary"><?php esc_html_e( 'Launch', 'invoicing' ); ?></a>
+                    " class="button button-primary"><?php esc_html_e('Launch', 'invoicing'); ?></a>
                 </td>
             </tr>
 
-			<?php do_action( 'wpinv_tools_row' ); ?>
+			<?php do_action('wpinv_tools_row'); ?>
         </tbody>
     </table>
-    <?php do_action( 'wpinv_tools_after' ); ?>
+    <?php do_action('wpinv_tools_after'); ?>
     <?php
 }
 
 
-function wpinv_descriptive_text_callback( $args ) {
-	echo wp_kses_post( $args['desc'] );
+function wpinv_descriptive_text_callback($args) {
+	echo wp_kses_post($args['desc']);
 }
 
-function wpinv_raw_html_callback( $args ) {
-	echo wp_kses( $args['desc'], getpaid_allowed_html() );
+function wpinv_raw_html_callback($args) {
+	echo wp_kses($args['desc'], getpaid_allowed_html());
 }
 
-function wpinv_hook_callback( $args ) {
-	do_action( 'wpinv_' . $args['id'], $args );
+function wpinv_hook_callback($args) {
+	do_action('wpinv_' . $args['id'], $args);
 }
 
 function wpinv_set_settings_cap() {
 	return wpinv_get_capability();
 }
-add_filter( 'option_page_capability_wpinv_settings', 'wpinv_set_settings_cap' );
+add_filter('option_page_capability_wpinv_settings', 'wpinv_set_settings_cap');
 
 
-function wpinv_on_update_settings( $old_value, $value, $option ) {
-    $old = ! empty( $old_value['remove_data_on_unistall'] ) ? 1 : '';
-    $new = ! empty( $value['remove_data_on_unistall'] ) ? 1 : '';
+function wpinv_on_update_settings($old_value, $value, $option) {
+    $old = !empty($old_value['remove_data_on_unistall']) ? 1 : '';
+    $new = !empty($value['remove_data_on_unistall']) ? 1 : '';
 
-    if ( $old != $new ) {
-        update_option( 'wpinv_remove_data_on_invoice_unistall', $new );
+    if ($old != $new) {
+        update_option('wpinv_remove_data_on_invoice_unistall', $new);
     }
 }
-add_action( 'update_option_wpinv_settings', 'wpinv_on_update_settings', 10, 3 );
+add_action('update_option_wpinv_settings', 'wpinv_on_update_settings', 10, 3);
 
 /**
  * Returns the merge tags help text.
@@ -1157,16 +1157,16 @@ 
  *
  * @return string
  */
-function wpinv_get_merge_tags_help_text( $subscription = false ) {
+function wpinv_get_merge_tags_help_text($subscription = false) {
 
 	$url  = $subscription ? 'https://gist.github.com/picocodes/3d213982d57c34edf7a46fd3f0e8583e' : 'https://gist.github.com/picocodes/43bdc4d4bbba844534b2722e2af0b58f';
 	$link = sprintf(
 		'<strong><a href="%s" target="_blank">%s</a></strong>',
 		$url,
-		esc_html__( 'View available merge tags.', 'invoicing' )
+		esc_html__('View available merge tags.', 'invoicing')
 	);
 
-	$description = esc_html__( 'The content of the email (Merge Tags and HTML are allowed).', 'invoicing' );
+	$description = esc_html__('The content of the email (Merge Tags and HTML are allowed).', 'invoicing');
 
 	return "$description $link";
 

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

Indentation +489 added lines, -489 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',
-		'invoice_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',
+        'invoice_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;
-
-		// 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';
-
-			$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' );
-
-		}
-
-		// 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();
-
-		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 );
-
-	}
-
-	/**
+        global $wpdb;
+
+        // 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';
+
+            $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' );
+
+        }
+
+        // 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();
+
+        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 );
+
+    }
+
+    /**
      * 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() ) );
-	}
-
-	/**
-	 * 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;
-	}
+        $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;
+    }
 
 }