AyeCode / invoicing

includes/class-wpinv-invoice.php

Spacing +822 added lines, -822 removed lines

@@ -6,7 +6,7 @@ 
  * @package Invoicing
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * Invoice class.
@@ -146,39 +146,39 @@ 
 	 *
 	 * @param  int|string|object|WPInv_Invoice|WPInv_Legacy_Invoice|WP_Post $invoice Invoice id, key, transaction id, number or object to read.
 	 */
-    public function __construct( $invoice = 0 ) {
+    public function __construct($invoice = 0) {
 
-        parent::__construct( $invoice );
+        parent::__construct($invoice);
 
-		if ( ! empty( $invoice ) && is_numeric( $invoice ) && getpaid_is_invoice_post_type( get_post_type( (int) $invoice ) ) ) {
-			$this->set_id( (int) $invoice );
-		} elseif ( $invoice instanceof self ) {
-			$this->set_id( $invoice->get_id() );
-		} elseif ( ! empty( $invoice->ID ) ) {
-			$this->set_id( $invoice->ID );
-		} elseif ( is_array( $invoice ) ) {
-			$this->set_props( $invoice );
+		if (!empty($invoice) && is_numeric($invoice) && getpaid_is_invoice_post_type(get_post_type((int) $invoice))) {
+			$this->set_id((int) $invoice);
+		} elseif ($invoice instanceof self) {
+			$this->set_id($invoice->get_id());
+		} elseif (!empty($invoice->ID)) {
+			$this->set_id($invoice->ID);
+		} elseif (is_array($invoice)) {
+			$this->set_props($invoice);
 
-			if ( isset( $invoice['ID'] ) ) {
-				$this->set_id( $invoice['ID'] );
+			if (isset($invoice['ID'])) {
+				$this->set_id($invoice['ID']);
 			}
-} elseif ( is_string( $invoice ) && $invoice_id = self::get_invoice_id_by_field( $invoice, 'key' ) ) {
-			$this->set_id( $invoice_id );
-		} elseif ( is_string( $invoice ) && $invoice_id = self::get_invoice_id_by_field( $invoice, 'number' ) ) {
-			$this->set_id( $invoice_id );
-		} elseif ( is_string( $invoice ) && $invoice_id = self::get_invoice_id_by_field( $invoice, 'transaction_id' ) ) {
-			$this->set_id( $invoice_id );
+} elseif (is_string($invoice) && $invoice_id = self::get_invoice_id_by_field($invoice, 'key')) {
+			$this->set_id($invoice_id);
+		} elseif (is_string($invoice) && $invoice_id = self::get_invoice_id_by_field($invoice, 'number')) {
+			$this->set_id($invoice_id);
+		} elseif (is_string($invoice) && $invoice_id = self::get_invoice_id_by_field($invoice, 'transaction_id')) {
+			$this->set_id($invoice_id);
 		} else {
-			$this->set_object_read( true );
+			$this->set_object_read(true);
 		}
 
         // Load the datastore.
-		$this->data_store = GetPaid_Data_Store::load( $this->data_store_name );
+		$this->data_store = GetPaid_Data_Store::load($this->data_store_name);
 
-		if ( $this->get_id() > 0 ) {
-            $this->post = get_post( $this->get_id() );
+		if ($this->get_id() > 0) {
+            $this->post = get_post($this->get_id());
             $this->ID   = $this->get_id();
-			$this->data_store->read( $this );
+			$this->data_store->read($this);
         }
 
     }
@@ -193,39 +193,39 @@ 
 	 * @since 1.0.15
 	 * @return int
 	 */
-	public static function get_invoice_id_by_field( $value, $field = 'key' ) {
+	public static function get_invoice_id_by_field($value, $field = 'key') {
         global $wpdb;
 
 		// Trim the value.
-		$value = trim( $value );
+		$value = trim($value);
 
-		if ( empty( $value ) ) {
+		if (empty($value)) {
 			return 0;
 		}
 
         // Valid fields.
-        $fields = array( 'key', 'number', 'transaction_id' );
+        $fields = array('key', 'number', 'transaction_id');
 
 		// Ensure a field has been passed.
-		if ( empty( $field ) || ! in_array( $field, $fields ) ) {
+		if (empty($field) || !in_array($field, $fields)) {
 			return 0;
 		}
 
 		// Maybe retrieve from the cache.
-		$invoice_id   = wp_cache_get( $value, "getpaid_invoice_{$field}s_to_invoice_ids" );
-		if ( false !== $invoice_id ) {
+		$invoice_id = wp_cache_get($value, "getpaid_invoice_{$field}s_to_invoice_ids");
+		if (false !== $invoice_id) {
 			return $invoice_id;
 		}
 
         // Fetch from the db.
         $table       = $wpdb->prefix . 'getpaid_invoices';
-		$db_field    = 'key' === $field ? 'invoice_key' : $field;
+		$db_field = 'key' === $field ? 'invoice_key' : $field;
         $invoice_id  = (int) $wpdb->get_var(
-            $wpdb->prepare( "SELECT `post_id` FROM $table WHERE `$db_field`=%s LIMIT 1", $value )
+            $wpdb->prepare("SELECT `post_id` FROM $table WHERE `$db_field`=%s LIMIT 1", $value)
         );
 
 		// Update the cache with our data
-		wp_cache_set( $value, $invoice_id, "getpaid_invoice_{$field}s_to_invoice_ids" );
+		wp_cache_set($value, $invoice_id, "getpaid_invoice_{$field}s_to_invoice_ids");
 
 		return $invoice_id;
     }
@@ -233,8 +233,8 @@ 
     /**
      * Checks if an invoice key is set.
      */
-    public function _isset( $key ) {
-        return isset( $this->data[ $key ] ) || method_exists( $this, "get_$key" );
+    public function _isset($key) {
+        return isset($this->data[$key]) || method_exists($this, "get_$key");
     }
 
     /*
@@ -259,8 +259,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return int
 	 */
-	public function get_parent_id( $context = 'view' ) {
-		return (int) $this->get_prop( 'parent_id', $context );
+	public function get_parent_id($context = 'view') {
+		return (int) $this->get_prop('parent_id', $context);
     }
 
     /**
@@ -270,7 +270,7 @@ 
 	 * @return WPInv_Invoice
 	 */
     public function get_parent_payment() {
-        return new WPInv_Invoice( $this->get_parent_id() );
+        return new WPInv_Invoice($this->get_parent_id());
     }
 
     /**
@@ -290,8 +290,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_status( $context = 'view' ) {
-		return $this->get_prop( 'status', $context );
+	public function get_status($context = 'view') {
+		return $this->get_prop('status', $context);
 	}
 
 	/**
@@ -301,7 +301,7 @@ 
 	 * @return array
 	 */
 	public function get_all_statuses() {
-		return wpinv_get_invoice_statuses( true, true, $this );
+		return wpinv_get_invoice_statuses(true, true, $this);
     }
 
     /**
@@ -313,9 +313,9 @@ 
     public function get_status_nicename() {
 		$statuses = $this->get_all_statuses();
 
-        $status = isset( $statuses[ $this->get_status() ] ) ? $statuses[ $this->get_status() ] : $this->get_status();
+        $status = isset($statuses[$this->get_status()]) ? $statuses[$this->get_status()] : $this->get_status();
 
-        return apply_filters( 'wpinv_get_invoice_status_nicename', $status, $this );
+        return apply_filters('wpinv_get_invoice_status_nicename', $status, $this);
     }
 
 	/**
@@ -326,7 +326,7 @@ 
 	 */
 	public function get_status_class() {
 		$statuses = getpaid_get_invoice_status_classes();
-		return isset( $statuses[ $this->get_status() ] ) ? $statuses[ $this->get_status() ] : 'bg-dark';
+		return isset($statuses[$this->get_status()]) ? $statuses[$this->get_status()] : 'bg-dark';
 	}
 
 	/**
@@ -337,9 +337,9 @@ 
      */
     public function get_status_label_html() {
 
-		$status_label = sanitize_text_field( $this->get_status_nicename() );
-		$status       = sanitize_html_class( $this->get_status() );
-		$class        = esc_attr( $this->get_status_class() );
+		$status_label = sanitize_text_field($this->get_status_nicename());
+		$status       = sanitize_html_class($this->get_status());
+		$class        = esc_attr($this->get_status_class());
 
 		return "<span class='bsui'><span class='badge $class $status'>$status_label</span></span>";
 	}
@@ -351,23 +351,23 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_version( $context = 'view' ) {
-		return $this->get_prop( 'version', $context );
+	public function get_version($context = 'view') {
+		return $this->get_prop('version', $context);
 	}
 
 	/**
 	 * @deprecated
 	 */
-	public function get_invoice_date( $format = true ) {
-		$date      = getpaid_format_date( $this->get_date_completed() );
-		$date      = empty( $date ) ? $this->get_date_created() : $this->get_date_completed();
-		$formatted = getpaid_format_date( $date );
+	public function get_invoice_date($format = true) {
+		$date      = getpaid_format_date($this->get_date_completed());
+		$date      = empty($date) ? $this->get_date_created() : $this->get_date_completed();
+		$formatted = getpaid_format_date($date);
 
-		if ( $format ) {
+		if ($format) {
 			return $formatted;
 		}
 
-		return empty( $formatted ) ? '' : $date;
+		return empty($formatted) ? '' : $date;
 
     }
 
@@ -378,8 +378,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_date_created( $context = 'view' ) {
-		return $this->get_prop( 'date_created', $context );
+	public function get_date_created($context = 'view') {
+		return $this->get_prop('date_created', $context);
 	}
 
 	/**
@@ -389,8 +389,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_created_date( $context = 'view' ) {
-		return $this->get_date_created( $context );
+	public function get_created_date($context = 'view') {
+		return $this->get_date_created($context);
     }
 
     /**
@@ -400,11 +400,11 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_date_created_gmt( $context = 'view' ) {
-        $date = $this->get_date_created( $context );
+	public function get_date_created_gmt($context = 'view') {
+        $date = $this->get_date_created($context);
 
-        if ( $date ) {
-            $date = get_gmt_from_date( $date );
+        if ($date) {
+            $date = get_gmt_from_date($date);
         }
 		return $date;
     }
@@ -416,8 +416,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_date_modified( $context = 'view' ) {
-		return $this->get_prop( 'date_modified', $context );
+	public function get_date_modified($context = 'view') {
+		return $this->get_prop('date_modified', $context);
 	}
 
 	/**
@@ -427,8 +427,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_modified_date( $context = 'view' ) {
-		return $this->get_date_modified( $context );
+	public function get_modified_date($context = 'view') {
+		return $this->get_date_modified($context);
     }
 
     /**
@@ -438,11 +438,11 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_date_modified_gmt( $context = 'view' ) {
-        $date = $this->get_date_modified( $context );
+	public function get_date_modified_gmt($context = 'view') {
+        $date = $this->get_date_modified($context);
 
-        if ( $date ) {
-            $date = get_gmt_from_date( $date );
+        if ($date) {
+            $date = get_gmt_from_date($date);
         }
 		return $date;
     }
@@ -454,8 +454,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_due_date( $context = 'view' ) {
-		return $this->get_prop( 'due_date', $context );
+	public function get_due_date($context = 'view') {
+		return $this->get_prop('due_date', $context);
     }
 
     /**
@@ -465,8 +465,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_date_due( $context = 'view' ) {
-		return $this->get_due_date( $context );
+	public function get_date_due($context = 'view') {
+		return $this->get_due_date($context);
     }
 
     /**
@@ -476,11 +476,11 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_due_date_gmt( $context = 'view' ) {
-        $date = $this->get_due_date( $context );
+	public function get_due_date_gmt($context = 'view') {
+        $date = $this->get_due_date($context);
 
-        if ( $date ) {
-            $date = get_gmt_from_date( $date );
+        if ($date) {
+            $date = get_gmt_from_date($date);
         }
 		return $date;
     }
@@ -492,8 +492,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_gmt_date_due( $context = 'view' ) {
-		return $this->get_due_date_gmt( $context );
+	public function get_gmt_date_due($context = 'view') {
+		return $this->get_due_date_gmt($context);
     }
 
     /**
@@ -503,8 +503,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_completed_date( $context = 'view' ) {
-		return $this->get_prop( 'completed_date', $context );
+	public function get_completed_date($context = 'view') {
+		return $this->get_prop('completed_date', $context);
     }
 
     /**
@@ -514,8 +514,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_date_completed( $context = 'view' ) {
-		return $this->get_completed_date( $context );
+	public function get_date_completed($context = 'view') {
+		return $this->get_completed_date($context);
     }
 
     /**
@@ -525,11 +525,11 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_completed_date_gmt( $context = 'view' ) {
-        $date = $this->get_completed_date( $context );
+	public function get_completed_date_gmt($context = 'view') {
+        $date = $this->get_completed_date($context);
 
-        if ( $date ) {
-            $date = get_gmt_from_date( $date );
+        if ($date) {
+            $date = get_gmt_from_date($date);
         }
 		return $date;
     }
@@ -541,8 +541,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_gmt_completed_date( $context = 'view' ) {
-		return $this->get_completed_date_gmt( $context );
+	public function get_gmt_completed_date($context = 'view') {
+		return $this->get_completed_date_gmt($context);
     }
 
     /**
@@ -552,12 +552,12 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_number( $context = 'view' ) {
-		$number = $this->get_prop( 'number', $context );
+	public function get_number($context = 'view') {
+		$number = $this->get_prop('number', $context);
 
-		if ( empty( $number ) ) {
+		if (empty($number)) {
 			$number = $this->generate_number();
-			$this->set_number( $this->generate_number() );
+			$this->set_number($this->generate_number());
 		}
 
 		return $number;
@@ -571,8 +571,8 @@ 
 	public function maybe_set_number() {
         $number = $this->get_number();
 
-        if ( empty( $number ) || $this->get_id() == $number ) {
-			$this->set_number( $this->generate_number() );
+        if (empty($number) || $this->get_id() == $number) {
+			$this->set_number($this->generate_number());
         }
 
 	}
@@ -584,8 +584,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_key( $context = 'view' ) {
-        return $this->get_prop( 'key', $context );
+	public function get_key($context = 'view') {
+        return $this->get_prop('key', $context);
 	}
 
 	/**
@@ -596,9 +596,9 @@ 
 	public function maybe_set_key() {
         $key = $this->get_key();
 
-        if ( empty( $key ) ) {
-            $key = $this->generate_key( $this->get_type() . '_' );
-            $this->set_key( $key );
+        if (empty($key)) {
+            $key = $this->generate_key($this->get_type() . '_');
+            $this->set_key($key);
         }
 
     }
@@ -610,8 +610,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_type( $context = 'view' ) {
-        return $this->get_prop( 'type', $context );
+	public function get_type($context = 'view') {
+        return $this->get_prop('type', $context);
 	}
 
 	/**
@@ -621,7 +621,7 @@ 
 	 * @return string
 	 */
 	public function get_invoice_quote_type() {
-        return getpaid_get_post_type_label( $this->get_post_type(), false );
+        return getpaid_get_post_type_label($this->get_post_type(), false);
     }
 
     /**
@@ -631,8 +631,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_label( $context = 'view' ) {
-        return getpaid_get_post_type_label( $this->get_post_type( $context ), false );
+	public function get_label($context = 'view') {
+        return getpaid_get_post_type_label($this->get_post_type($context), false);
 	}
 
 	/**
@@ -642,8 +642,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_post_type( $context = 'view' ) {
-        return $this->get_prop( 'post_type', $context );
+	public function get_post_type($context = 'view') {
+        return $this->get_prop('post_type', $context);
     }
 
     /**
@@ -653,8 +653,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_mode( $context = 'view' ) {
-        return $this->get_prop( 'mode', $context );
+	public function get_mode($context = 'view') {
+        return $this->get_prop('mode', $context);
     }
 
     /**
@@ -664,13 +664,13 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_path( $context = 'view' ) {
-        $path   = $this->get_prop( 'path', $context );
+	public function get_path($context = 'view') {
+        $path = $this->get_prop('path', $context);
 		$prefix = $this->get_type();
 
-		if ( 0 !== strpos( $path, $prefix ) ) {
-			$path = sanitize_title( $prefix . '-' . $this->get_id() );
-			$this->set_path( $path );
+		if (0 !== strpos($path, $prefix)) {
+			$path = sanitize_title($prefix . '-' . $this->get_id());
+			$this->set_path($path);
 		}
 
 		return $path;
@@ -683,8 +683,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_name( $context = 'view' ) {
-        return $this->get_prop( 'title', $context );
+	public function get_name($context = 'view') {
+        return $this->get_prop('title', $context);
     }
 
     /**
@@ -694,8 +694,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_title( $context = 'view' ) {
-		return $this->get_name( $context );
+	public function get_title($context = 'view') {
+		return $this->get_name($context);
     }
 
     /**
@@ -705,8 +705,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_description( $context = 'view' ) {
-		return $this->get_prop( 'description', $context );
+	public function get_description($context = 'view') {
+		return $this->get_prop('description', $context);
     }
 
     /**
@@ -716,8 +716,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_excerpt( $context = 'view' ) {
-		return $this->get_description( $context );
+	public function get_excerpt($context = 'view') {
+		return $this->get_description($context);
     }
 
     /**
@@ -727,8 +727,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_summary( $context = 'view' ) {
-		return $this->get_description( $context );
+	public function get_summary($context = 'view') {
+		return $this->get_description($context);
     }
 
     /**
@@ -738,26 +738,26 @@ 
      * @param  string $context View or edit context.
 	 * @return array
 	 */
-    public function get_user_info( $context = 'view' ) {
+    public function get_user_info($context = 'view') {
 
         $user_info = array(
-            'user_id'    => $this->get_user_id( $context ),
-            'email'      => $this->get_email( $context ),
-            'first_name' => $this->get_first_name( $context ),
-            'last_name'  => $this->get_last_name( $context ),
-            'address'    => $this->get_address( $context ),
-            'phone'      => $this->get_phone( $context ),
-            'city'       => $this->get_city( $context ),
-            'country'    => $this->get_country( $context ),
-            'state'      => $this->get_state( $context ),
-            'zip'        => $this->get_zip( $context ),
-            'company'    => $this->get_company( $context ),
-			'company_id' => $this->get_company_id( $context ),
-            'vat_number' => $this->get_vat_number( $context ),
-            'discount'   => $this->get_discount_code( $context ),
+            'user_id'    => $this->get_user_id($context),
+            'email'      => $this->get_email($context),
+            'first_name' => $this->get_first_name($context),
+            'last_name'  => $this->get_last_name($context),
+            'address'    => $this->get_address($context),
+            'phone'      => $this->get_phone($context),
+            'city'       => $this->get_city($context),
+            'country'    => $this->get_country($context),
+            'state'      => $this->get_state($context),
+            'zip'        => $this->get_zip($context),
+            'company'    => $this->get_company($context),
+			'company_id' => $this->get_company_id($context),
+            'vat_number' => $this->get_vat_number($context),
+            'discount'   => $this->get_discount_code($context),
 		);
 
-		return apply_filters( 'wpinv_user_info', $user_info, $this->get_id(), $this );
+		return apply_filters('wpinv_user_info', $user_info, $this->get_id(), $this);
 
     }
 
@@ -768,8 +768,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return int
 	 */
-	public function get_author( $context = 'view' ) {
-		return (int) $this->get_prop( 'author', $context );
+	public function get_author($context = 'view') {
+		return (int) $this->get_prop('author', $context);
     }
 
     /**
@@ -779,8 +779,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return int
 	 */
-	public function get_user_id( $context = 'view' ) {
-		return $this->get_author( $context );
+	public function get_user_id($context = 'view') {
+		return $this->get_author($context);
     }
 
      /**
@@ -790,8 +790,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return int
 	 */
-	public function get_customer_id( $context = 'view' ) {
-		return (int) $this->get_prop( 'customer_id', $context );
+	public function get_customer_id($context = 'view') {
+		return (int) $this->get_prop('customer_id', $context);
     }
 
     /**
@@ -801,8 +801,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_ip( $context = 'view' ) {
-		return $this->get_prop( 'user_ip', $context );
+	public function get_ip($context = 'view') {
+		return $this->get_prop('user_ip', $context);
     }
 
     /**
@@ -812,8 +812,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_user_ip( $context = 'view' ) {
-		return $this->get_ip( $context );
+	public function get_user_ip($context = 'view') {
+		return $this->get_ip($context);
     }
 
      /**
@@ -823,8 +823,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_customer_ip( $context = 'view' ) {
-		return $this->get_ip( $context );
+	public function get_customer_ip($context = 'view') {
+		return $this->get_ip($context);
     }
 
     /**
@@ -834,8 +834,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_first_name( $context = 'view' ) {
-		return $this->get_prop( 'first_name', $context );
+	public function get_first_name($context = 'view') {
+		return $this->get_prop('first_name', $context);
     }
 
     /**
@@ -845,8 +845,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_user_first_name( $context = 'view' ) {
-		return $this->get_first_name( $context );
+	public function get_user_first_name($context = 'view') {
+		return $this->get_first_name($context);
     }
 
      /**
@@ -856,8 +856,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_customer_first_name( $context = 'view' ) {
-		return $this->get_first_name( $context );
+	public function get_customer_first_name($context = 'view') {
+		return $this->get_first_name($context);
     }
 
     /**
@@ -867,8 +867,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_last_name( $context = 'view' ) {
-		return $this->get_prop( 'last_name', $context );
+	public function get_last_name($context = 'view') {
+		return $this->get_prop('last_name', $context);
     }
 
     /**
@@ -878,8 +878,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_user_last_name( $context = 'view' ) {
-		return $this->get_last_name( $context );
+	public function get_user_last_name($context = 'view') {
+		return $this->get_last_name($context);
     }
 
     /**
@@ -889,8 +889,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_customer_last_name( $context = 'view' ) {
-		return $this->get_last_name( $context );
+	public function get_customer_last_name($context = 'view') {
+		return $this->get_last_name($context);
     }
 
     /**
@@ -900,22 +900,22 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_full_name( $context = 'view' ) {
-		$name = trim( $this->get_first_name( $context ) . ' ' . $this->get_last_name( $context ) );
+	public function get_full_name($context = 'view') {
+		$name = trim($this->get_first_name($context) . ' ' . $this->get_last_name($context));
 
-		if ( ! $name ) {
-			$user = get_userdata( $this->get_author( $context ) );
+		if (!$name) {
+			$user = get_userdata($this->get_author($context));
 
-			if ( $user ) {
+			if ($user) {
 				$name = $user->display_name;
 			}
 		}
 
-		if ( ! $name ) {
-			$name = $this->get_email( $context );
+		if (!$name) {
+			$name = $this->get_email($context);
 		}
 
-		return apply_filters( 'wpinv_invoice_user_full_name', $name, $this );
+		return apply_filters('wpinv_invoice_user_full_name', $name, $this);
     }
 
     /**
@@ -925,8 +925,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_user_full_name( $context = 'view' ) {
-		return $this->get_full_name( $context );
+	public function get_user_full_name($context = 'view') {
+		return $this->get_full_name($context);
     }
 
     /**
@@ -936,8 +936,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_customer_full_name( $context = 'view' ) {
-		return $this->get_full_name( $context );
+	public function get_customer_full_name($context = 'view') {
+		return $this->get_full_name($context);
     }
 
     /**
@@ -947,8 +947,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_phone( $context = 'view' ) {
-		return $this->get_prop( 'phone', $context );
+	public function get_phone($context = 'view') {
+		return $this->get_prop('phone', $context);
     }
 
     /**
@@ -958,8 +958,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_phone_number( $context = 'view' ) {
-		return $this->get_phone( $context );
+	public function get_phone_number($context = 'view') {
+		return $this->get_phone($context);
     }
 
     /**
@@ -969,8 +969,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_user_phone( $context = 'view' ) {
-		return $this->get_phone( $context );
+	public function get_user_phone($context = 'view') {
+		return $this->get_phone($context);
     }
 
     /**
@@ -980,8 +980,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_customer_phone( $context = 'view' ) {
-		return $this->get_phone( $context );
+	public function get_customer_phone($context = 'view') {
+		return $this->get_phone($context);
     }
 
     /**
@@ -991,8 +991,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_email( $context = 'view' ) {
-		return $this->get_prop( 'email', $context );
+	public function get_email($context = 'view') {
+		return $this->get_prop('email', $context);
     }
 
     /**
@@ -1002,8 +1002,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_email_address( $context = 'view' ) {
-		return $this->get_email( $context );
+	public function get_email_address($context = 'view') {
+		return $this->get_email($context);
     }
 
     /**
@@ -1013,8 +1013,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_user_email( $context = 'view' ) {
-		return $this->get_email( $context );
+	public function get_user_email($context = 'view') {
+		return $this->get_email($context);
     }
 
     /**
@@ -1024,8 +1024,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_customer_email( $context = 'view' ) {
-		return $this->get_email( $context );
+	public function get_customer_email($context = 'view') {
+		return $this->get_email($context);
     }
 
     /**
@@ -1035,9 +1035,9 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_country( $context = 'view' ) {
-		$country = $this->get_prop( 'country', $context );
-		return empty( $country ) ? wpinv_get_default_country() : $country;
+	public function get_country($context = 'view') {
+		$country = $this->get_prop('country', $context);
+		return empty($country) ? wpinv_get_default_country() : $country;
     }
 
     /**
@@ -1047,8 +1047,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_user_country( $context = 'view' ) {
-		return $this->get_country( $context );
+	public function get_user_country($context = 'view') {
+		return $this->get_country($context);
     }
 
     /**
@@ -1058,8 +1058,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_customer_country( $context = 'view' ) {
-		return $this->get_country( $context );
+	public function get_customer_country($context = 'view') {
+		return $this->get_country($context);
     }
 
     /**
@@ -1069,9 +1069,9 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_state( $context = 'view' ) {
-		$state = $this->get_prop( 'state', $context );
-		return empty( $state ) ? wpinv_get_default_state() : $state;
+	public function get_state($context = 'view') {
+		$state = $this->get_prop('state', $context);
+		return empty($state) ? wpinv_get_default_state() : $state;
     }
 
     /**
@@ -1081,8 +1081,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_user_state( $context = 'view' ) {
-		return $this->get_state( $context );
+	public function get_user_state($context = 'view') {
+		return $this->get_state($context);
     }
 
     /**
@@ -1092,8 +1092,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_customer_state( $context = 'view' ) {
-		return $this->get_state( $context );
+	public function get_customer_state($context = 'view') {
+		return $this->get_state($context);
     }
 
     /**
@@ -1103,8 +1103,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_city( $context = 'view' ) {
-		return $this->get_prop( 'city', $context );
+	public function get_city($context = 'view') {
+		return $this->get_prop('city', $context);
     }
 
     /**
@@ -1114,8 +1114,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_user_city( $context = 'view' ) {
-		return $this->get_city( $context );
+	public function get_user_city($context = 'view') {
+		return $this->get_city($context);
     }
 
     /**
@@ -1125,8 +1125,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_customer_city( $context = 'view' ) {
-		return $this->get_city( $context );
+	public function get_customer_city($context = 'view') {
+		return $this->get_city($context);
     }
 
     /**
@@ -1136,8 +1136,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_zip( $context = 'view' ) {
-		return $this->get_prop( 'zip', $context );
+	public function get_zip($context = 'view') {
+		return $this->get_prop('zip', $context);
     }
 
     /**
@@ -1147,8 +1147,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_user_zip( $context = 'view' ) {
-		return $this->get_zip( $context );
+	public function get_user_zip($context = 'view') {
+		return $this->get_zip($context);
     }
 
     /**
@@ -1158,8 +1158,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_customer_zip( $context = 'view' ) {
-		return $this->get_zip( $context );
+	public function get_customer_zip($context = 'view') {
+		return $this->get_zip($context);
     }
 
     /**
@@ -1169,8 +1169,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_company( $context = 'view' ) {
-		return $this->get_prop( 'company', $context );
+	public function get_company($context = 'view') {
+		return $this->get_prop('company', $context);
     }
 
     /**
@@ -1180,8 +1180,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_user_company( $context = 'view' ) {
-		return $this->get_company( $context );
+	public function get_user_company($context = 'view') {
+		return $this->get_company($context);
     }
 
     /**
@@ -1191,8 +1191,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_customer_company( $context = 'view' ) {
-		return $this->get_company( $context );
+	public function get_customer_company($context = 'view') {
+		return $this->get_company($context);
     }
 
 	/**
@@ -1202,8 +1202,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_company_id( $context = 'view' ) {
-		return $this->get_prop( 'company_id', $context );
+	public function get_company_id($context = 'view') {
+		return $this->get_prop('company_id', $context);
     }
 
     /**
@@ -1213,8 +1213,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_vat_number( $context = 'view' ) {
-		return $this->get_prop( 'vat_number', $context );
+	public function get_vat_number($context = 'view') {
+		return $this->get_prop('vat_number', $context);
     }
 
     /**
@@ -1224,8 +1224,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_user_vat_number( $context = 'view' ) {
-		return $this->get_vat_number( $context );
+	public function get_user_vat_number($context = 'view') {
+		return $this->get_vat_number($context);
     }
 
     /**
@@ -1235,8 +1235,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_customer_vat_number( $context = 'view' ) {
-		return $this->get_vat_number( $context );
+	public function get_customer_vat_number($context = 'view') {
+		return $this->get_vat_number($context);
     }
 
     /**
@@ -1246,8 +1246,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_vat_rate( $context = 'view' ) {
-		return $this->get_prop( 'vat_rate', $context );
+	public function get_vat_rate($context = 'view') {
+		return $this->get_prop('vat_rate', $context);
     }
 
     /**
@@ -1257,8 +1257,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_user_vat_rate( $context = 'view' ) {
-		return $this->get_vat_rate( $context );
+	public function get_user_vat_rate($context = 'view') {
+		return $this->get_vat_rate($context);
     }
 
     /**
@@ -1268,8 +1268,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_customer_vat_rate( $context = 'view' ) {
-		return $this->get_vat_rate( $context );
+	public function get_customer_vat_rate($context = 'view') {
+		return $this->get_vat_rate($context);
     }
 
     /**
@@ -1279,8 +1279,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_address( $context = 'view' ) {
-		return $this->get_prop( 'address', $context );
+	public function get_address($context = 'view') {
+		return $this->get_prop('address', $context);
     }
 
     /**
@@ -1290,8 +1290,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_user_address( $context = 'view' ) {
-		return $this->get_address( $context );
+	public function get_user_address($context = 'view') {
+		return $this->get_address($context);
     }
 
     /**
@@ -1301,8 +1301,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_customer_address( $context = 'view' ) {
-		return $this->get_address( $context );
+	public function get_customer_address($context = 'view') {
+		return $this->get_address($context);
     }
 
     /**
@@ -1312,8 +1312,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return bool
 	 */
-	public function get_is_viewed( $context = 'view' ) {
-		return (bool) $this->get_prop( 'is_viewed', $context );
+	public function get_is_viewed($context = 'view') {
+		return (bool) $this->get_prop('is_viewed', $context);
 	}
 
 	/**
@@ -1323,8 +1323,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return bool
 	 */
-	public function get_email_cc( $context = 'view' ) {
-		return $this->get_prop( 'email_cc', $context );
+	public function get_email_cc($context = 'view') {
+		return $this->get_prop('email_cc', $context);
 	}
 
 	/**
@@ -1334,8 +1334,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return bool
 	 */
-	public function get_template( $context = 'view' ) {
-		return $this->get_prop( 'template', $context );
+	public function get_template($context = 'view') {
+		return $this->get_prop('template', $context);
 	}
 
 	/**
@@ -1345,8 +1345,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return bool
 	 */
-	public function get_created_via( $context = 'view' ) {
-		return $this->get_prop( 'created_via', $context );
+	public function get_created_via($context = 'view') {
+		return $this->get_prop('created_via', $context);
 	}
 
 	/**
@@ -1356,8 +1356,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return bool
 	 */
-	public function get_address_confirmed( $context = 'view' ) {
-		return (bool) $this->get_prop( 'address_confirmed', $context );
+	public function get_address_confirmed($context = 'view') {
+		return (bool) $this->get_prop('address_confirmed', $context);
     }
 
     /**
@@ -1367,8 +1367,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return bool
 	 */
-	public function get_user_address_confirmed( $context = 'view' ) {
-		return $this->get_address_confirmed( $context );
+	public function get_user_address_confirmed($context = 'view') {
+		return $this->get_address_confirmed($context);
     }
 
     /**
@@ -1378,8 +1378,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return bool
 	 */
-	public function get_customer_address_confirmed( $context = 'view' ) {
-		return $this->get_address_confirmed( $context );
+	public function get_customer_address_confirmed($context = 'view') {
+		return $this->get_address_confirmed($context);
     }
 
 	/**
@@ -1390,8 +1390,8 @@ 
 	 */
 	public function get_shipping_address() {
 
-		$shipping_address = get_post_meta( $this->get_id(), 'shipping_address', true );
-		return is_array( $shipping_address ) ? $shipping_address : false;
+		$shipping_address = get_post_meta($this->get_id(), 'shipping_address', true);
+		return is_array($shipping_address) ? $shipping_address : false;
     }
 
 	/**
@@ -1408,17 +1408,17 @@ 
 	 * @param  string $context View or edit context.
 	 * @return float
 	 */
-	public function get_shipping( $context = 'view' ) {
+	public function get_shipping($context = 'view') {
 
-		if ( $context = 'view' ) {
-			return floatval( $this->get_prop( 'shipping', $context ) );
+		if ($context = 'view') {
+			return floatval($this->get_prop('shipping', $context));
 		}
 
-		return $this->get_prop( 'shipping', $context );
+		return $this->get_prop('shipping', $context);
     }
 
 	public function has_shipping() {
-		return defined( 'GETPAID_SHIPPING_CALCULATOR_VERSION' ) && null !== $this->get_prop( 'shipping', 'edit' );
+		return defined('GETPAID_SHIPPING_CALCULATOR_VERSION') && null !== $this->get_prop('shipping', 'edit');
     }
 
     /**
@@ -1428,12 +1428,12 @@ 
 	 * @param  string $context View or edit context.
 	 * @return float
 	 */
-	public function get_subtotal( $context = 'view' ) {
-        $subtotal = (float) $this->get_prop( 'subtotal', $context );
+	public function get_subtotal($context = 'view') {
+        $subtotal = (float) $this->get_prop('subtotal', $context);
 
         // Backwards compatibility.
-        if ( is_bool( $context ) && $context ) {
-            return wpinv_price( $subtotal, $this->get_currency() );
+        if (is_bool($context) && $context) {
+            return wpinv_price($subtotal, $this->get_currency());
         }
 
         return $subtotal;
@@ -1446,8 +1446,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return float
 	 */
-	public function get_total_discount( $context = 'view' ) {
-		return wpinv_round_amount( wpinv_sanitize_amount( $this->get_prop( 'total_discount', $context ) ) );
+	public function get_total_discount($context = 'view') {
+		return wpinv_round_amount(wpinv_sanitize_amount($this->get_prop('total_discount', $context)));
     }
 
     /**
@@ -1457,18 +1457,18 @@ 
 	 * @param  string $context View or edit context.
 	 * @return float
 	 */
-	public function get_total_tax( $context = 'view' ) {
-		return wpinv_round_amount( wpinv_sanitize_amount( $this->get_prop( 'total_tax', $context ) ) );
+	public function get_total_tax($context = 'view') {
+		return wpinv_round_amount(wpinv_sanitize_amount($this->get_prop('total_tax', $context)));
 	}
 
 	/**
 	 * @deprecated
 	 */
-	public function get_final_tax( $currency = false ) {
+	public function get_final_tax($currency = false) {
 		$tax = $this->get_total_tax();
 
-        if ( $currency ) {
-			return wpinv_price( $tax, $this->get_currency() );
+        if ($currency) {
+			return wpinv_price($tax, $this->get_currency());
         }
 
         return $tax;
@@ -1481,8 +1481,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return float
 	 */
-	public function get_total_fees( $context = 'view' ) {
-		return wpinv_round_amount( wpinv_sanitize_amount( $this->get_prop( 'total_fees', $context ) ) );
+	public function get_total_fees($context = 'view') {
+		return wpinv_round_amount(wpinv_sanitize_amount($this->get_prop('total_fees', $context)));
     }
 
     /**
@@ -1492,8 +1492,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return float
 	 */
-	public function get_fees_total( $context = 'view' ) {
-		return $this->get_total_fees( $context );
+	public function get_fees_total($context = 'view') {
+		return $this->get_total_fees($context);
     }
 
     /**
@@ -1502,14 +1502,14 @@ 
 	 * @since 1.0.19
      * @return float
 	 */
-	public function get_total( $context = 'view' ) {
-		$total = $this->get_prop( 'total', $context );
+	public function get_total($context = 'view') {
+		$total = $this->get_prop('total', $context);
 
-		if ( $this->has_shipping() && $context == 'view' ) {
-			$total = $this->get_prop( 'total', $context ) + $this->get_shipping( $context );
+		if ($this->has_shipping() && $context == 'view') {
+			$total = $this->get_prop('total', $context) + $this->get_shipping($context);
 		}
 
-		return wpinv_round_amount( wpinv_sanitize_amount( $total ) );
+		return wpinv_round_amount(wpinv_sanitize_amount($total));
 	}
 
 	/**
@@ -1521,20 +1521,20 @@ 
 	public function get_non_recurring_total() {
 
 		$subtotal = 0;
-		foreach ( $this->get_items() as $item ) {
-			if ( ! $item->is_recurring() ) {
+		foreach ($this->get_items() as $item) {
+			if (!$item->is_recurring()) {
 				$subtotal += $item->get_sub_total();
 			}
 		}
 
-		foreach ( $this->get_fees() as $fee ) {
-			if ( empty( $fee['recurring_fee'] ) ) {
-				$subtotal += wpinv_sanitize_amount( $fee['initial_fee'] );
+		foreach ($this->get_fees() as $fee) {
+			if (empty($fee['recurring_fee'])) {
+				$subtotal += wpinv_sanitize_amount($fee['initial_fee']);
 			}
 		}
 
-		$subtotal = wpinv_round_amount( wpinv_sanitize_amount( $subtotal ) );
-        return apply_filters( 'wpinv_get_non_recurring_invoice_total', $subtotal, $this );
+		$subtotal = wpinv_round_amount(wpinv_sanitize_amount($subtotal));
+        return apply_filters('wpinv_get_non_recurring_invoice_total', $subtotal, $this);
 
     }
 
@@ -1557,7 +1557,7 @@ 
 	 */
     public function get_initial_total() {
 
-		if ( empty( $this->totals ) ) {
+		if (empty($this->totals)) {
 			$this->recalculate_total();
 		}
 
@@ -1567,12 +1567,12 @@ 
 		$subtotal = $this->totals['subtotal']['initial'];
 		$total    = $tax + $fee - $discount + $subtotal;
 
-		if ( 0 > $total ) {
+		if (0 > $total) {
 			$total = 0;
 		}
 
-		$total = wpinv_round_amount( wpinv_sanitize_amount( $total ) );
-        return apply_filters( 'wpinv_get_initial_invoice_total', $total, $this );
+		$total = wpinv_round_amount(wpinv_sanitize_amount($total));
+        return apply_filters('wpinv_get_initial_invoice_total', $total, $this);
 	}
 
 	/**
@@ -1584,7 +1584,7 @@ 
 	 */
     public function get_recurring_total() {
 
-		if ( empty( $this->totals ) ) {
+		if (empty($this->totals)) {
 			$this->recalculate_total();
 		}
 
@@ -1594,12 +1594,12 @@ 
 		$subtotal = $this->totals['subtotal']['recurring'];
 		$total    = $tax + $fee - $discount + $subtotal;
 
-		if ( 0 > $total ) {
+		if (0 > $total) {
 			$total = 0;
 		}
 
-		$total = wpinv_round_amount( wpinv_sanitize_amount( $total ) );
-        return apply_filters( 'wpinv_get_recurring_invoice_total', $total, $this );
+		$total = wpinv_round_amount(wpinv_sanitize_amount($total));
+        return apply_filters('wpinv_get_recurring_invoice_total', $total, $this);
 	}
 
 	/**
@@ -1610,10 +1610,10 @@ 
 	 * @param string $currency Whether to include the currency.
      * @return float|string
 	 */
-    public function get_recurring_details( $field = '', $currency = false ) {
+    public function get_recurring_details($field = '', $currency = false) {
 
 		// Maybe recalculate totals.
-		if ( empty( $this->totals ) ) {
+		if (empty($this->totals)) {
 			$this->recalculate_total();
 		}
 
@@ -1633,8 +1633,8 @@ 
 			$currency
 		);
 
-        if ( isset( $data[ $field ] ) ) {
-            return ( $currency ? wpinv_price( $data[ $field ], $this->get_currency() ) : $data[ $field ] );
+        if (isset($data[$field])) {
+            return ($currency ? wpinv_price($data[$field], $this->get_currency()) : $data[$field]);
         }
 
         return $data;
@@ -1647,8 +1647,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return array
 	 */
-	public function get_fees( $context = 'view' ) {
-		return wpinv_parse_list( $this->get_prop( 'fees', $context ) );
+	public function get_fees($context = 'view') {
+		return wpinv_parse_list($this->get_prop('fees', $context));
     }
 
     /**
@@ -1658,8 +1658,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return array
 	 */
-	public function get_discounts( $context = 'view' ) {
-		return wpinv_parse_list( $this->get_prop( 'discounts', $context ) );
+	public function get_discounts($context = 'view') {
+		return wpinv_parse_list($this->get_prop('discounts', $context));
     }
 
     /**
@@ -1669,8 +1669,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return array
 	 */
-	public function get_taxes( $context = 'view' ) {
-		return wpinv_parse_list( $this->get_prop( 'taxes', $context ) );
+	public function get_taxes($context = 'view') {
+		return wpinv_parse_list($this->get_prop('taxes', $context));
     }
 
     /**
@@ -1680,8 +1680,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return GetPaid_Form_Item[]
 	 */
-	public function get_items( $context = 'view' ) {
-        return $this->get_prop( 'items', $context );
+	public function get_items($context = 'view') {
+        return $this->get_prop('items', $context);
 	}
 
 	/**
@@ -1691,7 +1691,7 @@ 
 	 * @return string
 	 */
 	public function get_item_ids() {
-		return implode( ', ', wp_list_pluck( $this->get_cart_details(), 'item_id' ) );
+		return implode(', ', wp_list_pluck($this->get_cart_details(), 'item_id'));
     }
 
     /**
@@ -1701,8 +1701,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return int
 	 */
-	public function get_payment_form( $context = 'view' ) {
-		return intval( $this->get_prop( 'payment_form', $context ) );
+	public function get_payment_form($context = 'view') {
+		return intval($this->get_prop('payment_form', $context));
     }
 
     /**
@@ -1712,8 +1712,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_submission_id( $context = 'view' ) {
-		return $this->get_prop( 'submission_id', $context );
+	public function get_submission_id($context = 'view') {
+		return $this->get_prop('submission_id', $context);
     }
 
     /**
@@ -1723,8 +1723,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_discount_code( $context = 'view' ) {
-		return $this->get_prop( 'discount_code', $context );
+	public function get_discount_code($context = 'view') {
+		return $this->get_prop('discount_code', $context);
     }
 
     /**
@@ -1734,8 +1734,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_gateway( $context = 'view' ) {
-		return $this->get_prop( 'gateway', $context );
+	public function get_gateway($context = 'view') {
+		return $this->get_prop('gateway', $context);
     }
 
     /**
@@ -1745,8 +1745,8 @@ 
 	 * @return string
 	 */
     public function get_gateway_title() {
-        $title = wpinv_get_gateway_checkout_label( $this->get_gateway() );
-        return apply_filters( 'wpinv_gateway_title', $title, $this->get_id(), $this );
+        $title = wpinv_get_gateway_checkout_label($this->get_gateway());
+        return apply_filters('wpinv_gateway_title', $title, $this->get_id(), $this);
     }
 
     /**
@@ -1756,8 +1756,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_transaction_id( $context = 'view' ) {
-		return $this->get_prop( 'transaction_id', $context );
+	public function get_transaction_id($context = 'view') {
+		return $this->get_prop('transaction_id', $context);
     }
 
     /**
@@ -1767,9 +1767,9 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_currency( $context = 'view' ) {
-        $currency = $this->get_prop( 'currency', $context );
-        return empty( $currency ) ? wpinv_get_currency() : $currency;
+	public function get_currency($context = 'view') {
+        $currency = $this->get_prop('currency', $context);
+        return empty($currency) ? wpinv_get_currency() : $currency;
     }
 
     /**
@@ -1779,8 +1779,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return bool
 	 */
-	public function get_disable_taxes( $context = 'view' ) {
-        return (bool) $this->get_prop( 'disable_taxes', $context );
+	public function get_disable_taxes($context = 'view') {
+        return (bool) $this->get_prop('disable_taxes', $context);
     }
 
     /**
@@ -1790,8 +1790,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return int
 	 */
-    public function get_subscription_id( $context = 'view' ) {
-		return $this->is_renewal() ? $this->get_parent()->get_subscription_id( $context ) : $this->get_prop( 'subscription_id', $context );
+    public function get_subscription_id($context = 'view') {
+		return $this->is_renewal() ? $this->get_parent()->get_subscription_id($context) : $this->get_prop('subscription_id', $context);
 	}
 
 	/**
@@ -1801,12 +1801,12 @@ 
 	 * @param  string $context View or edit context.
 	 * @return int
 	 */
-    public function get_remote_subscription_id( $context = 'view' ) {
-        $subscription_id = $this->get_prop( 'remote_subscription_id', $context );
+    public function get_remote_subscription_id($context = 'view') {
+        $subscription_id = $this->get_prop('remote_subscription_id', $context);
 
-        if ( empty( $subscription_id ) && $this->is_renewal() ) {
+        if (empty($subscription_id) && $this->is_renewal()) {
             $parent = $this->get_parent();
-            return $parent->get_remote_subscription_id( $context );
+            return $parent->get_remote_subscription_id($context);
         }
 
         return $subscription_id;
@@ -1819,20 +1819,20 @@ 
 	 * @param  string $context View or edit context.
 	 * @return array
 	 */
-    public function get_payment_meta( $context = 'view' ) {
+    public function get_payment_meta($context = 'view') {
 
         return array(
-            'price'        => $this->get_total( $context ),
-            'date'         => $this->get_date_created( $context ),
-            'user_email'   => $this->get_email( $context ),
-            'invoice_key'  => $this->get_key( $context ),
-            'currency'     => $this->get_currency( $context ),
-            'items'        => $this->get_items( $context ),
-            'user_info'    => $this->get_user_info( $context ),
+            'price'        => $this->get_total($context),
+            'date'         => $this->get_date_created($context),
+            'user_email'   => $this->get_email($context),
+            'invoice_key'  => $this->get_key($context),
+            'currency'     => $this->get_currency($context),
+            'items'        => $this->get_items($context),
+            'user_info'    => $this->get_user_info($context),
             'cart_details' => $this->get_cart_details(),
-            'status'       => $this->get_status( $context ),
-            'fees'         => $this->get_fees( $context ),
-            'taxes'        => $this->get_taxes( $context ),
+            'status'       => $this->get_status($context),
+            'fees'         => $this->get_fees($context),
+            'taxes'        => $this->get_taxes($context),
         );
 
     }
@@ -1847,9 +1847,9 @@ 
         $items        = $this->get_items();
         $cart_details = array();
 
-        foreach ( $items as $item ) {
+        foreach ($items as $item) {
 			$item->invoice_id = $this->get_id();
-            $cart_details[]   = $item->prepare_data_for_saving();
+            $cart_details[] = $item->prepare_data_for_saving();
         }
 
         return $cart_details;
@@ -1860,11 +1860,11 @@ 
 	 *
 	 * @return null|GetPaid_Form_Item|int
 	 */
-	public function get_recurring( $object = false ) {
+	public function get_recurring($object = false) {
 
 		// Are we returning an object?
-        if ( $object ) {
-            return $this->get_item( $this->recurring_item );
+        if ($object) {
+            return $this->get_item($this->recurring_item);
         }
 
         return $this->recurring_item;
@@ -1879,15 +1879,15 @@ 
 	public function get_subscription_name() {
 
 		// Retrieve the recurring name
-        $item = $this->get_recurring( true );
+        $item = $this->get_recurring(true);
 
 		// Abort if it does not exist.
-        if ( empty( $item ) ) {
+        if (empty($item)) {
             return '';
         }
 
 		// Return the item name.
-        return apply_filters( 'wpinv_invoice_get_subscription_name', $item->get_name(), $this );
+        return apply_filters('wpinv_invoice_get_subscription_name', $item->get_name(), $this);
 	}
 
 	/**
@@ -1897,9 +1897,9 @@ 
 	 * @return string
 	 */
 	public function get_view_url() {
-        $invoice_url = get_permalink( $this->get_id() );
-		$invoice_url = add_query_arg( 'invoice_key', $this->get_key(), $invoice_url );
-        return apply_filters( 'wpinv_get_view_url', $invoice_url, $this );
+        $invoice_url = get_permalink($this->get_id());
+		$invoice_url = add_query_arg('invoice_key', $this->get_key(), $invoice_url);
+        return apply_filters('wpinv_get_view_url', $invoice_url, $this);
 	}
 
 	/**
@@ -1908,25 +1908,25 @@ 
 	 * @since 1.0.19
 	 * @return string
 	 */
-	public function get_checkout_payment_url( $deprecated = false, $secret = false ) {
+	public function get_checkout_payment_url($deprecated = false, $secret = false) {
 
 		// Retrieve the checkout url.
         $pay_url = wpinv_get_checkout_uri();
 
 		// Maybe force ssl.
-        if ( is_ssl() ) {
-            $pay_url = str_replace( 'http:', 'https:', $pay_url );
+        if (is_ssl()) {
+            $pay_url = str_replace('http:', 'https:', $pay_url);
         }
 
 		// Add the invoice key.
-		$pay_url = add_query_arg( 'invoice_key', $this->get_key(), $pay_url );
+		$pay_url = add_query_arg('invoice_key', $this->get_key(), $pay_url);
 
 		// (Maybe?) add a secret
-        if ( $secret ) {
-            $pay_url = add_query_arg( array( '_wpipay' => md5( $this->get_user_id() . '::' . $this->get_email() . '::' . $this->get_key() ) ), $pay_url );
+        if ($secret) {
+            $pay_url = add_query_arg(array('_wpipay' => md5($this->get_user_id() . '::' . $this->get_email() . '::' . $this->get_key())), $pay_url);
         }
 
-        return apply_filters( 'wpinv_get_checkout_payment_url', $pay_url, $this, $deprecated, $secret );
+        return apply_filters('wpinv_get_checkout_payment_url', $pay_url, $this, $deprecated, $secret);
 	}
 
 	/**
@@ -1941,14 +1941,14 @@ 
         $receipt_url = wpinv_get_success_page_uri();
 
 		// Maybe force ssl.
-        if ( is_ssl() ) {
-            $receipt_url = str_replace( 'http:', 'https:', $receipt_url );
+        if (is_ssl()) {
+            $receipt_url = str_replace('http:', 'https:', $receipt_url);
         }
 
 		// Add the invoice key.
-		$receipt_url = add_query_arg( 'invoice_key', $this->get_key(), $receipt_url );
+		$receipt_url = add_query_arg('invoice_key', $this->get_key(), $receipt_url);
 
-        return apply_filters( 'getpaid_get_invoice_receipt_url', $receipt_url, $this );
+        return apply_filters('getpaid_get_invoice_receipt_url', $receipt_url, $this);
 	}
 
 	/**
@@ -1958,7 +1958,7 @@ 
 	 * @return string
 	 */
 	public function get_transaction_url() {
-		return apply_filters( 'getpaid_gateway_' . $this->get_gateway() . '_transaction_url', '', $this );
+		return apply_filters('getpaid_gateway_' . $this->get_gateway() . '_transaction_url', '', $this);
 	}
 
 	/**
@@ -1971,7 +1971,7 @@ 
 
 		$type   = $this->get_type();
 		$status = "wpi-$type-pending";
-		return str_replace( '-invoice', '', $status );
+		return str_replace('-invoice', '', $status);
 
 	}
 
@@ -1985,14 +1985,14 @@ 
 	 * @param  string $context View or edit context.
 	 * @return mixed Value of the given invoice property (if set).
 	 */
-	public function get( $key, $context = 'view' ) {
+	public function get($key, $context = 'view') {
 		$method = "get_$key";
 
-		if ( is_callable( array( $this, $method ) ) ) {
-			return $this->$method( $context );
+		if (is_callable(array($this, $method))) {
+			return $this->$method($context);
 		}
 
-        return $this->get_prop( $key, $context );
+        return $this->get_prop($key, $context);
 	}
 
     /*
@@ -2015,11 +2015,11 @@ 
 	 * @param  mixed $value new value.
 	 * @return mixed Value of the given invoice property (if set).
 	 */
-	public function set( $key, $value ) {
+	public function set($key, $value) {
 
         $setter = "set_$key";
-        if ( is_callable( array( $this, $setter ) ) ) {
-            $this->{$setter}( $value );
+        if (is_callable(array($this, $setter))) {
+            $this->{$setter}($value);
         }
 
 	}
@@ -2033,45 +2033,45 @@ 
 	 * @param bool   $manual_update Is this a manual status change?.
 	 * @return array details of change.
 	 */
-	public function set_status( $new_status, $note = '', $manual_update = false ) {
+	public function set_status($new_status, $note = '', $manual_update = false) {
 		$old_status = $this->get_status();
 
 		$statuses = $this->get_all_statuses();
 
-		if ( isset( $statuses['draft'] ) ) {
-			unset( $statuses['draft'] );
+		if (isset($statuses['draft'])) {
+			unset($statuses['draft']);
 		}
 
-		$this->set_prop( 'status', $new_status );
+		$this->set_prop('status', $new_status);
 
 		// If setting the status, ensure it's set to a valid status.
-		if ( true === $this->object_read ) {
+		if (true === $this->object_read) {
 
 			// Only allow valid new status.
-			if ( ! array_key_exists( $new_status, $statuses ) ) {
+			if (!array_key_exists($new_status, $statuses)) {
 				$new_status = $this->get_default_status();
 			}
 
 			// If the old status is set but unknown (e.g. draft) assume its pending for action usage.
-			if ( $old_status && ! array_key_exists( $new_status, $statuses ) ) {
+			if ($old_status && !array_key_exists($new_status, $statuses)) {
 				$old_status = $this->get_default_status();
 			}
 
 			// Paid - Renewal (i.e when duplicating a parent invoice )
-			if ( $new_status == 'wpi-pending' && $old_status == 'publish' && ! $this->get_id() ) {
+			if ($new_status == 'wpi-pending' && $old_status == 'publish' && !$this->get_id()) {
 				$old_status = 'wpi-pending';
 			}
 
-			if ( $old_status !== $new_status ) {
+			if ($old_status !== $new_status) {
 				$this->status_transition = array(
-					'from'   => ! empty( $this->status_transition['from'] ) ? $this->status_transition['from'] : $old_status,
+					'from'   => !empty($this->status_transition['from']) ? $this->status_transition['from'] : $old_status,
 					'to'     => $new_status,
 					'note'   => $note,
 					'manual' => (bool) $manual_update,
 				);
 
-				if ( $manual_update ) {
-					do_action( 'getpaid_' . $this->object_type . '_edit_status', $this->get_id(), $new_status );
+				if ($manual_update) {
+					do_action('getpaid_' . $this->object_type . '_edit_status', $this->get_id(), $new_status);
 				}
 
 				$this->maybe_set_date_paid();
@@ -2095,8 +2095,8 @@ 
 	 */
 	public function maybe_set_date_paid() {
 
-		if ( ! $this->get_date_completed( 'edit' ) && $this->is_paid() ) {
-			$this->set_date_completed( current_time( 'mysql' ) );
+		if (!$this->get_date_completed('edit') && $this->is_paid()) {
+			$this->set_date_completed(current_time('mysql'));
 		}
 	}
 
@@ -2105,11 +2105,11 @@ 
 	 *
 	 * @since 1.0.19
 	 */
-	public function set_parent_id( $value ) {
-		if ( $value && ( $value === $this->get_id() ) ) {
+	public function set_parent_id($value) {
+		if ($value && ($value === $this->get_id())) {
 			return;
 		}
-		$this->set_prop( 'parent_id', absint( $value ) );
+		$this->set_prop('parent_id', absint($value));
     }
 
     /**
@@ -2117,8 +2117,8 @@ 
 	 *
 	 * @since 1.0.19
 	 */
-	public function set_version( $value ) {
-		$this->set_prop( 'version', $value );
+	public function set_version($value) {
+		$this->set_prop('version', $value);
     }
 
     /**
@@ -2128,15 +2128,15 @@ 
 	 * @param string $value Value to set.
      * @return bool Whether or not the date was set.
 	 */
-	public function set_date_created( $value ) {
-        $date = strtotime( $value );
+	public function set_date_created($value) {
+        $date = strtotime($value);
 
-        if ( $date && $value !== '0000-00-00 00:00:00' ) {
-            $this->set_prop( 'date_created', date( 'Y-m-d H:i:s', $date ) );
+        if ($date && $value !== '0000-00-00 00:00:00') {
+            $this->set_prop('date_created', date('Y-m-d H:i:s', $date));
             return true;
         }
 
-		$this->set_prop( 'date_created', '' );
+		$this->set_prop('date_created', '');
 		return false;
 
     }
@@ -2148,15 +2148,15 @@ 
 	 * @param string $value Value to set.
      * @return bool Whether or not the date was set.
 	 */
-	public function set_due_date( $value ) {
-        $date = strtotime( $value );
+	public function set_due_date($value) {
+        $date = strtotime($value);
 
-        if ( $date && $value !== '0000-00-00 00:00:00' ) {
-            $this->set_prop( 'due_date', date( 'Y-m-d H:i:s', $date ) );
+        if ($date && $value !== '0000-00-00 00:00:00') {
+            $this->set_prop('due_date', date('Y-m-d H:i:s', $date));
             return true;
         }
 
-		$this->set_prop( 'due_date', '' );
+		$this->set_prop('due_date', '');
         return false;
 
     }
@@ -2167,8 +2167,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value New name.
 	 */
-	public function set_date_due( $value ) {
-		$this->set_due_date( $value );
+	public function set_date_due($value) {
+		$this->set_due_date($value);
     }
 
     /**
@@ -2178,15 +2178,15 @@ 
 	 * @param string $value Value to set.
      * @return bool Whether or not the date was set.
 	 */
-	public function set_completed_date( $value ) {
-        $date = strtotime( $value );
+	public function set_completed_date($value) {
+        $date = strtotime($value);
 
-        if ( $date && $value !== '0000-00-00 00:00:00' ) {
-            $this->set_prop( 'completed_date', date( 'Y-m-d H:i:s', $date ) );
+        if ($date && $value !== '0000-00-00 00:00:00') {
+            $this->set_prop('completed_date', date('Y-m-d H:i:s', $date));
             return true;
         }
 
-		$this->set_prop( 'completed_date', '' );
+		$this->set_prop('completed_date', '');
         return false;
 
     }
@@ -2197,8 +2197,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value New name.
 	 */
-	public function set_date_completed( $value ) {
-		$this->set_completed_date( $value );
+	public function set_date_completed($value) {
+		$this->set_completed_date($value);
     }
 
     /**
@@ -2208,15 +2208,15 @@ 
 	 * @param string $value Value to set.
      * @return bool Whether or not the date was set.
 	 */
-	public function set_date_modified( $value ) {
-        $date = strtotime( $value );
+	public function set_date_modified($value) {
+        $date = strtotime($value);
 
-        if ( $date && $value !== '0000-00-00 00:00:00' ) {
-            $this->set_prop( 'date_modified', date( 'Y-m-d H:i:s', $date ) );
+        if ($date && $value !== '0000-00-00 00:00:00') {
+            $this->set_prop('date_modified', date('Y-m-d H:i:s', $date));
             return true;
         }
 
-		$this->set_prop( 'date_modified', '' );
+		$this->set_prop('date_modified', '');
         return false;
 
     }
@@ -2227,9 +2227,9 @@ 
 	 * @since 1.0.19
 	 * @param  string $value New number.
 	 */
-	public function set_number( $value ) {
-        $number = sanitize_text_field( $value );
-		$this->set_prop( 'number', $number );
+	public function set_number($value) {
+        $number = sanitize_text_field($value);
+		$this->set_prop('number', $number);
     }
 
     /**
@@ -2238,9 +2238,9 @@ 
 	 * @since 1.0.19
 	 * @param  string $value Type.
 	 */
-	public function set_type( $value ) {
-        $type = sanitize_text_field( str_replace( 'wpi_', '', $value ) );
-		$this->set_prop( 'type', $type );
+	public function set_type($value) {
+        $type = sanitize_text_field(str_replace('wpi_', '', $value));
+		$this->set_prop('type', $type);
 	}
 
     /**
@@ -2249,10 +2249,10 @@ 
 	 * @since 1.0.19
 	 * @param  string $value Post type.
 	 */
-	public function set_post_type( $value ) {
-        if ( getpaid_is_invoice_post_type( $value ) ) {
-			$this->set_type( $value );
-            $this->set_prop( 'post_type', $value );
+	public function set_post_type($value) {
+        if (getpaid_is_invoice_post_type($value)) {
+			$this->set_type($value);
+            $this->set_prop('post_type', $value);
         }
     }
 
@@ -2262,9 +2262,9 @@ 
 	 * @since 1.0.19
 	 * @param  string $value New key.
 	 */
-	public function set_key( $value ) {
-        $key = sanitize_text_field( $value );
-		$this->set_prop( 'key', $key );
+	public function set_key($value) {
+        $key = sanitize_text_field($value);
+		$this->set_prop('key', $key);
     }
 
     /**
@@ -2273,9 +2273,9 @@ 
 	 * @since 1.0.19
 	 * @param  string $value mode.
 	 */
-	public function set_mode( $value ) {
-        if ( in_array( $value, array( 'live', 'test' ) ) ) {
-            $this->set_prop( 'mode', $value );
+	public function set_mode($value) {
+        if (in_array($value, array('live', 'test'))) {
+            $this->set_prop('mode', $value);
         }
     }
 
@@ -2285,8 +2285,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value path.
 	 */
-	public function set_path( $value ) {
-        $this->set_prop( 'path', $value );
+	public function set_path($value) {
+        $this->set_prop('path', $value);
     }
 
     /**
@@ -2295,9 +2295,9 @@ 
 	 * @since 1.0.19
 	 * @param  string $value New name.
 	 */
-	public function set_name( $value ) {
-        $name = sanitize_text_field( $value );
-		$this->set_prop( 'name', $name );
+	public function set_name($value) {
+        $name = sanitize_text_field($value);
+		$this->set_prop('name', $name);
     }
 
     /**
@@ -2306,8 +2306,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value New name.
 	 */
-	public function set_title( $value ) {
-		$this->set_name( $value );
+	public function set_title($value) {
+		$this->set_name($value);
     }
 
     /**
@@ -2316,9 +2316,9 @@ 
 	 * @since 1.0.19
 	 * @param  string $value New description.
 	 */
-	public function set_description( $value ) {
-        $description = wp_kses_post( $value );
-		$this->set_prop( 'description', $description );
+	public function set_description($value) {
+        $description = wp_kses_post($value);
+		$this->set_prop('description', $description);
     }
 
     /**
@@ -2327,8 +2327,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value New description.
 	 */
-	public function set_excerpt( $value ) {
-		$this->set_description( $value );
+	public function set_excerpt($value) {
+		$this->set_description($value);
     }
 
     /**
@@ -2337,8 +2337,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value New description.
 	 */
-	public function set_summary( $value ) {
-		$this->set_description( $value );
+	public function set_summary($value) {
+		$this->set_description($value);
     }
 
     /**
@@ -2347,12 +2347,12 @@ 
 	 * @since 1.0.19
 	 * @param  int $value New author.
 	 */
-	public function set_author( $value ) {
-		$user = get_user_by( 'id', (int) $value );
+	public function set_author($value) {
+		$user = get_user_by('id', (int) $value);
 
-		if ( $user && $user->ID ) {
-			$this->set_prop( 'author', $user->ID );
-			$this->set_prop( 'email', $user->user_email );
+		if ($user && $user->ID) {
+			$this->set_prop('author', $user->ID);
+			$this->set_prop('email', $user->user_email);
 		}
 
     }
@@ -2363,8 +2363,8 @@ 
 	 * @since 1.0.19
 	 * @param  int $value New user id.
 	 */
-	public function set_user_id( $value ) {
-		$this->set_author( $value );
+	public function set_user_id($value) {
+		$this->set_author($value);
     }
 
     /**
@@ -2373,8 +2373,8 @@ 
 	 * @since 1.0.19
 	 * @param  int $value New user id.
 	 */
-	public function set_customer_id( $value ) {
-		$this->set_prop( 'customer_id', (int) $value );
+	public function set_customer_id($value) {
+		$this->set_prop('customer_id', (int) $value);
     }
 
     /**
@@ -2383,8 +2383,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value ip address.
 	 */
-	public function set_ip( $value ) {
-		$this->set_prop( 'ip', $value );
+	public function set_ip($value) {
+		$this->set_prop('ip', $value);
     }
 
     /**
@@ -2393,8 +2393,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value ip address.
 	 */
-	public function set_user_ip( $value ) {
-		$this->set_ip( $value );
+	public function set_user_ip($value) {
+		$this->set_ip($value);
     }
 
     /**
@@ -2403,8 +2403,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value first name.
 	 */
-	public function set_first_name( $value ) {
-		$this->set_prop( 'first_name', $value );
+	public function set_first_name($value) {
+		$this->set_prop('first_name', $value);
     }
 
     /**
@@ -2413,8 +2413,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value first name.
 	 */
-	public function set_user_first_name( $value ) {
-		$this->set_first_name( $value );
+	public function set_user_first_name($value) {
+		$this->set_first_name($value);
     }
 
     /**
@@ -2423,8 +2423,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value first name.
 	 */
-	public function set_customer_first_name( $value ) {
-		$this->set_first_name( $value );
+	public function set_customer_first_name($value) {
+		$this->set_first_name($value);
     }
 
     /**
@@ -2433,8 +2433,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value last name.
 	 */
-	public function set_last_name( $value ) {
-		$this->set_prop( 'last_name', $value );
+	public function set_last_name($value) {
+		$this->set_prop('last_name', $value);
     }
 
     /**
@@ -2443,8 +2443,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value last name.
 	 */
-	public function set_user_last_name( $value ) {
-		$this->set_last_name( $value );
+	public function set_user_last_name($value) {
+		$this->set_last_name($value);
     }
 
     /**
@@ -2453,8 +2453,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value last name.
 	 */
-	public function set_customer_last_name( $value ) {
-		$this->set_last_name( $value );
+	public function set_customer_last_name($value) {
+		$this->set_last_name($value);
     }
 
     /**
@@ -2463,8 +2463,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value phone.
 	 */
-	public function set_phone( $value ) {
-		$this->set_prop( 'phone', $value );
+	public function set_phone($value) {
+		$this->set_prop('phone', $value);
     }
 
     /**
@@ -2473,8 +2473,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value phone.
 	 */
-	public function set_user_phone( $value ) {
-		$this->set_phone( $value );
+	public function set_user_phone($value) {
+		$this->set_phone($value);
     }
 
     /**
@@ -2483,8 +2483,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value phone.
 	 */
-	public function set_customer_phone( $value ) {
-		$this->set_phone( $value );
+	public function set_customer_phone($value) {
+		$this->set_phone($value);
     }
 
     /**
@@ -2493,8 +2493,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value phone.
 	 */
-	public function set_phone_number( $value ) {
-		$this->set_phone( $value );
+	public function set_phone_number($value) {
+		$this->set_phone($value);
     }
 
     /**
@@ -2503,8 +2503,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value email address.
 	 */
-	public function set_email( $value ) {
-		$this->set_prop( 'email', $value );
+	public function set_email($value) {
+		$this->set_prop('email', $value);
     }
 
     /**
@@ -2513,8 +2513,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value email address.
 	 */
-	public function set_user_email( $value ) {
-		$this->set_email( $value );
+	public function set_user_email($value) {
+		$this->set_email($value);
     }
 
     /**
@@ -2523,8 +2523,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value email address.
 	 */
-	public function set_email_address( $value ) {
-		$this->set_email( $value );
+	public function set_email_address($value) {
+		$this->set_email($value);
     }
 
     /**
@@ -2533,8 +2533,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value email address.
 	 */
-	public function set_customer_email( $value ) {
-		$this->set_email( $value );
+	public function set_customer_email($value) {
+		$this->set_email($value);
     }
 
     /**
@@ -2543,8 +2543,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value country.
 	 */
-	public function set_country( $value ) {
-		$this->set_prop( 'country', $value );
+	public function set_country($value) {
+		$this->set_prop('country', $value);
     }
 
     /**
@@ -2553,8 +2553,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value country.
 	 */
-	public function set_user_country( $value ) {
-		$this->set_country( $value );
+	public function set_user_country($value) {
+		$this->set_country($value);
     }
 
     /**
@@ -2563,8 +2563,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value country.
 	 */
-	public function set_customer_country( $value ) {
-		$this->set_country( $value );
+	public function set_customer_country($value) {
+		$this->set_country($value);
     }
 
     /**
@@ -2573,8 +2573,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value state.
 	 */
-	public function set_state( $value ) {
-		$this->set_prop( 'state', $value );
+	public function set_state($value) {
+		$this->set_prop('state', $value);
     }
 
     /**
@@ -2583,8 +2583,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value state.
 	 */
-	public function set_user_state( $value ) {
-		$this->set_state( $value );
+	public function set_user_state($value) {
+		$this->set_state($value);
     }
 
     /**
@@ -2593,8 +2593,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value state.
 	 */
-	public function set_customer_state( $value ) {
-		$this->set_state( $value );
+	public function set_customer_state($value) {
+		$this->set_state($value);
     }
 
     /**
@@ -2603,8 +2603,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value city.
 	 */
-	public function set_city( $value ) {
-		$this->set_prop( 'city', $value );
+	public function set_city($value) {
+		$this->set_prop('city', $value);
     }
 
     /**
@@ -2613,8 +2613,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value city.
 	 */
-	public function set_user_city( $value ) {
-		$this->set_city( $value );
+	public function set_user_city($value) {
+		$this->set_city($value);
     }
 
     /**
@@ -2623,8 +2623,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value city.
 	 */
-	public function set_customer_city( $value ) {
-		$this->set_city( $value );
+	public function set_customer_city($value) {
+		$this->set_city($value);
     }
 
     /**
@@ -2633,8 +2633,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value zip.
 	 */
-	public function set_zip( $value ) {
-		$this->set_prop( 'zip', $value );
+	public function set_zip($value) {
+		$this->set_prop('zip', $value);
     }
 
     /**
@@ -2643,8 +2643,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value zip.
 	 */
-	public function set_user_zip( $value ) {
-		$this->set_zip( $value );
+	public function set_user_zip($value) {
+		$this->set_zip($value);
     }
 
     /**
@@ -2653,8 +2653,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value zip.
 	 */
-	public function set_customer_zip( $value ) {
-		$this->set_zip( $value );
+	public function set_customer_zip($value) {
+		$this->set_zip($value);
     }
 
     /**
@@ -2663,8 +2663,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value company.
 	 */
-	public function set_company( $value ) {
-		$this->set_prop( 'company', $value );
+	public function set_company($value) {
+		$this->set_prop('company', $value);
     }
 
     /**
@@ -2673,8 +2673,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value company.
 	 */
-	public function set_user_company( $value ) {
-		$this->set_company( $value );
+	public function set_user_company($value) {
+		$this->set_company($value);
     }
 
     /**
@@ -2683,8 +2683,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value company.
 	 */
-	public function set_customer_company( $value ) {
-		$this->set_company( $value );
+	public function set_customer_company($value) {
+		$this->set_company($value);
     }
 
 	/**
@@ -2693,8 +2693,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value company id.
 	 */
-	public function set_company_id( $value ) {
-		$this->set_prop( 'company_id', $value );
+	public function set_company_id($value) {
+		$this->set_prop('company_id', $value);
     }
 
     /**
@@ -2703,8 +2703,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value var number.
 	 */
-	public function set_vat_number( $value ) {
-		$this->set_prop( 'vat_number', $value );
+	public function set_vat_number($value) {
+		$this->set_prop('vat_number', $value);
     }
 
     /**
@@ -2713,8 +2713,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value var number.
 	 */
-	public function set_user_vat_number( $value ) {
-		$this->set_vat_number( $value );
+	public function set_user_vat_number($value) {
+		$this->set_vat_number($value);
     }
 
     /**
@@ -2723,8 +2723,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value var number.
 	 */
-	public function set_customer_vat_number( $value ) {
-		$this->set_vat_number( $value );
+	public function set_customer_vat_number($value) {
+		$this->set_vat_number($value);
     }
 
     /**
@@ -2733,8 +2733,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value var rate.
 	 */
-	public function set_vat_rate( $value ) {
-		$this->set_prop( 'vat_rate', $value );
+	public function set_vat_rate($value) {
+		$this->set_prop('vat_rate', $value);
     }
 
     /**
@@ -2743,8 +2743,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value var number.
 	 */
-	public function set_user_vat_rate( $value ) {
-		$this->set_vat_rate( $value );
+	public function set_user_vat_rate($value) {
+		$this->set_vat_rate($value);
     }
 
     /**
@@ -2753,8 +2753,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value var number.
 	 */
-	public function set_customer_vat_rate( $value ) {
-		$this->set_vat_rate( $value );
+	public function set_customer_vat_rate($value) {
+		$this->set_vat_rate($value);
     }
 
     /**
@@ -2763,8 +2763,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value address.
 	 */
-	public function set_address( $value ) {
-		$this->set_prop( 'address', $value );
+	public function set_address($value) {
+		$this->set_prop('address', $value);
     }
 
     /**
@@ -2773,8 +2773,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value address.
 	 */
-	public function set_user_address( $value ) {
-		$this->set_address( $value );
+	public function set_user_address($value) {
+		$this->set_address($value);
     }
 
     /**
@@ -2783,8 +2783,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value address.
 	 */
-	public function set_customer_address( $value ) {
-		$this->set_address( $value );
+	public function set_customer_address($value) {
+		$this->set_address($value);
     }
 
     /**
@@ -2793,8 +2793,8 @@ 
 	 * @since 1.0.19
 	 * @param  int|bool $value confirmed.
 	 */
-	public function set_is_viewed( $value ) {
-		$this->set_prop( 'is_viewed', $value );
+	public function set_is_viewed($value) {
+		$this->set_prop('is_viewed', $value);
 	}
 
 	/**
@@ -2803,8 +2803,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value email recipients.
 	 */
-	public function set_email_cc( $value ) {
-		$this->set_prop( 'email_cc', $value );
+	public function set_email_cc($value) {
+		$this->set_prop('email_cc', $value);
 	}
 
 	/**
@@ -2813,9 +2813,9 @@ 
 	 * @since 1.0.19
 	 * @param  string $value template.
 	 */
-	public function set_template( $value ) {
-		if ( in_array( $value, array( 'quantity', 'hours', 'amount' ) ) ) {
-			$this->set_prop( 'template', $value );
+	public function set_template($value) {
+		if (in_array($value, array('quantity', 'hours', 'amount'))) {
+			$this->set_prop('template', $value);
 		}
 	}
 
@@ -2826,8 +2826,8 @@ 
 	 * @param  string $value source.
 	 * @deprecated
 	 */
-	public function created_via( $value ) {
-		$this->set_created_via( sanitize_text_field( $value ) );
+	public function created_via($value) {
+		$this->set_created_via(sanitize_text_field($value));
 	}
 
 	/**
@@ -2836,8 +2836,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value source.
 	 */
-	public function set_created_via( $value ) {
-		$this->set_prop( 'created_via', sanitize_text_field( $value ) );
+	public function set_created_via($value) {
+		$this->set_prop('created_via', sanitize_text_field($value));
 	}
 
 	/**
@@ -2846,8 +2846,8 @@ 
 	 * @since 1.0.19
 	 * @param  int|bool $value confirmed.
 	 */
-	public function set_address_confirmed( $value ) {
-		$this->set_prop( 'address_confirmed', $value );
+	public function set_address_confirmed($value) {
+		$this->set_prop('address_confirmed', $value);
     }
 
     /**
@@ -2856,8 +2856,8 @@ 
 	 * @since 1.0.19
 	 * @param  int|bool $value confirmed.
 	 */
-	public function set_user_address_confirmed( $value ) {
-		$this->set_address_confirmed( $value );
+	public function set_user_address_confirmed($value) {
+		$this->set_address_confirmed($value);
     }
 
     /**
@@ -2866,8 +2866,8 @@ 
 	 * @since 1.0.19
 	 * @param  int|bool $value confirmed.
 	 */
-	public function set_customer_address_confirmed( $value ) {
-		$this->set_address_confirmed( $value );
+	public function set_customer_address_confirmed($value) {
+		$this->set_address_confirmed($value);
     }
 
     /**
@@ -2876,13 +2876,13 @@ 
 	 * @since 1.0.19
 	 * @param  float $value shipping amount.
 	 */
-	public function set_shipping( $value ) {
+	public function set_shipping($value) {
 
-		if ( ! is_numeric( $value ) ) {
-			return $this->set_prop( 'shipping', null );
+		if (!is_numeric($value)) {
+			return $this->set_prop('shipping', null);
 		}
 
-		$this->set_prop( 'shipping', max( 0, floatval( $value ) ) );
+		$this->set_prop('shipping', max(0, floatval($value)));
 	}
 
 	/**
@@ -2891,8 +2891,8 @@ 
 	 * @since 1.0.19
 	 * @param  float $value sub total.
 	 */
-	public function set_subtotal( $value ) {
-		$this->set_prop( 'subtotal', max( 0, $value ) );
+	public function set_subtotal($value) {
+		$this->set_prop('subtotal', max(0, $value));
 	}
 
 	/**
@@ -2901,8 +2901,8 @@ 
 	 * @since 1.0.19
 	 * @param  float $value sub total.
 	 */
-	public function set_total( $value ) {
-		$this->set_prop( 'total', max( 0, $value ) );
+	public function set_total($value) {
+		$this->set_prop('total', max(0, $value));
     }
 
     /**
@@ -2911,8 +2911,8 @@ 
 	 * @since 1.0.19
 	 * @param  float $value discount total.
 	 */
-	public function set_total_discount( $value ) {
-		$this->set_prop( 'total_discount', max( 0, $value ) );
+	public function set_total_discount($value) {
+		$this->set_prop('total_discount', max(0, $value));
     }
 
     /**
@@ -2921,8 +2921,8 @@ 
 	 * @since 1.0.19
 	 * @param  float $value discount total.
 	 */
-	public function set_discount( $value ) {
-		$this->set_total_discount( $value );
+	public function set_discount($value) {
+		$this->set_total_discount($value);
     }
 
     /**
@@ -2931,8 +2931,8 @@ 
 	 * @since 1.0.19
 	 * @param  float $value tax total.
 	 */
-	public function set_total_tax( $value ) {
-		$this->set_prop( 'total_tax', max( 0, $value ) );
+	public function set_total_tax($value) {
+		$this->set_prop('total_tax', max(0, $value));
     }
 
     /**
@@ -2941,8 +2941,8 @@ 
 	 * @since 1.0.19
 	 * @param  float $value tax total.
 	 */
-	public function set_tax_total( $value ) {
-		$this->set_total_tax( $value );
+	public function set_tax_total($value) {
+		$this->set_total_tax($value);
     }
 
     /**
@@ -2951,8 +2951,8 @@ 
 	 * @since 1.0.19
 	 * @param  float $value fees total.
 	 */
-	public function set_total_fees( $value ) {
-		$this->set_prop( 'total_fees', max( 0, $value ) );
+	public function set_total_fees($value) {
+		$this->set_prop('total_fees', max(0, $value));
     }
 
     /**
@@ -2961,8 +2961,8 @@ 
 	 * @since 1.0.19
 	 * @param  float $value fees total.
 	 */
-	public function set_fees_total( $value ) {
-		$this->set_total_fees( $value );
+	public function set_fees_total($value) {
+		$this->set_total_fees($value);
     }
 
     /**
@@ -2971,13 +2971,13 @@ 
 	 * @since 1.0.19
 	 * @param  array $value fees.
 	 */
-	public function set_fees( $value ) {
+	public function set_fees($value) {
 
-		if ( ! is_array( $value ) ) {
+		if (!is_array($value)) {
 			$value = array();
 		}
 
-		$this->set_prop( 'fees', $value );
+		$this->set_prop('fees', $value);
 
     }
 
@@ -2987,13 +2987,13 @@ 
 	 * @since 1.0.19
 	 * @param  array $value taxes.
 	 */
-	public function set_taxes( $value ) {
+	public function set_taxes($value) {
 
-		if ( ! is_array( $value ) ) {
+		if (!is_array($value)) {
 			$value = array();
 		}
 
-		$this->set_prop( 'taxes', $value );
+		$this->set_prop('taxes', $value);
 
     }
 
@@ -3003,13 +3003,13 @@ 
 	 * @since 1.0.19
 	 * @param  array $value discounts.
 	 */
-	public function set_discounts( $value ) {
+	public function set_discounts($value) {
 
-		if ( ! is_array( $value ) ) {
+		if (!is_array($value)) {
 			$value = array();
 		}
 
-		$this->set_prop( 'discounts', $value );
+		$this->set_prop('discounts', $value);
     }
 
     /**
@@ -3018,19 +3018,19 @@ 
 	 * @since 1.0.19
 	 * @param  GetPaid_Form_Item[] $value items.
 	 */
-	public function set_items( $value ) {
+	public function set_items($value) {
 
         // Remove existing items.
-        $this->set_prop( 'items', array() );
+        $this->set_prop('items', array());
 		$this->recurring_item = null;
 
         // Ensure that we have an array.
-        if ( ! is_array( $value ) ) {
+        if (!is_array($value)) {
             return;
         }
 
-        foreach ( $value as $item ) {
-            $this->add_item( $item );
+        foreach ($value as $item) {
+            $this->add_item($item);
         }
 
     }
@@ -3041,8 +3041,8 @@ 
 	 * @since 1.0.19
 	 * @param  int $value payment form.
 	 */
-	public function set_payment_form( $value ) {
-		$this->set_prop( 'payment_form', $value );
+	public function set_payment_form($value) {
+		$this->set_prop('payment_form', $value);
     }
 
     /**
@@ -3051,8 +3051,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value submission id.
 	 */
-	public function set_submission_id( $value ) {
-		$this->set_prop( 'submission_id', $value );
+	public function set_submission_id($value) {
+		$this->set_prop('submission_id', $value);
     }
 
     /**
@@ -3061,8 +3061,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value discount code.
 	 */
-	public function set_discount_code( $value ) {
-		$this->set_prop( 'discount_code', sanitize_text_field( $value ) );
+	public function set_discount_code($value) {
+		$this->set_prop('discount_code', sanitize_text_field($value));
     }
 
     /**
@@ -3071,8 +3071,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value gateway.
 	 */
-	public function set_gateway( $value ) {
-		$this->set_prop( 'gateway', $value );
+	public function set_gateway($value) {
+		$this->set_prop('gateway', $value);
     }
 
     /**
@@ -3081,9 +3081,9 @@ 
 	 * @since 1.0.19
 	 * @param  string $value transaction id.
 	 */
-	public function set_transaction_id( $value ) {
-		if ( ! empty( $value ) ) {
-			$this->set_prop( 'transaction_id', $value );
+	public function set_transaction_id($value) {
+		if (!empty($value)) {
+			$this->set_prop('transaction_id', $value);
 		}
     }
 
@@ -3093,8 +3093,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value currency id.
 	 */
-	public function set_currency( $value ) {
-		$this->set_prop( 'currency', $value );
+	public function set_currency($value) {
+		$this->set_prop('currency', $value);
     }
 
 	/**
@@ -3103,8 +3103,8 @@ 
 	 * @since 1.0.19
 	 * @param  bool $value value.
 	 */
-	public function set_disable_taxes( $value ) {
-		$this->set_prop( 'disable_taxes', (bool) $value );
+	public function set_disable_taxes($value) {
+		$this->set_prop('disable_taxes', (bool) $value);
 	}
 
     /**
@@ -3113,8 +3113,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value subscription id.
 	 */
-	public function set_subscription_id( $value ) {
-		$this->set_prop( 'subscription_id', $value );
+	public function set_subscription_id($value) {
+		$this->set_prop('subscription_id', $value);
 	}
 
 	/**
@@ -3123,8 +3123,8 @@ 
 	 * @since 1.0.19
 	 * @param  string $value subscription id.
 	 */
-	public function set_remote_subscription_id( $value ) {
-		$this->set_prop( 'remote_subscription_id', $value );
+	public function set_remote_subscription_id($value) {
+		$this->set_prop('remote_subscription_id', $value);
     }
 
     /*
@@ -3141,28 +3141,28 @@ 
      */
     public function is_parent() {
         $parent = $this->get_parent_id();
-        return apply_filters( 'wpinv_invoice_is_parent', empty( $parent ), $this );
+        return apply_filters('wpinv_invoice_is_parent', empty($parent), $this);
     }
 
     /**
      * Checks if this is a renewal invoice.
      */
     public function is_renewal() {
-        return $this->is_recurring() && ! $this->is_parent();
+        return $this->is_recurring() && !$this->is_parent();
     }
 
     /**
      * Checks if this is a recurring invoice.
      */
     public function is_recurring() {
-        return ! empty( $this->recurring_item );
+        return !empty($this->recurring_item);
     }
 
     /**
      * Checks if this is a taxable invoice.
      */
     public function is_taxable() {
-        return ! $this->get_disable_taxes();
+        return !$this->get_disable_taxes();
 	}
 
 	/**
@@ -3176,45 +3176,45 @@ 
 	 * Checks to see if the invoice requires payment.
 	 */
 	public function is_free() {
-        $is_free = ( (float) wpinv_round_amount( $this->get_initial_total() ) == 0 );
+        $is_free = ((float) wpinv_round_amount($this->get_initial_total()) == 0);
 
-		if ( $this->is_recurring() && $this->get_recurring_total() > 0 ) {
+		if ($this->is_recurring() && $this->get_recurring_total() > 0) {
 			$is_free = false;
 		}
 
-        return apply_filters( 'wpinv_invoice_is_free', $is_free, $this );
+        return apply_filters('wpinv_invoice_is_free', $is_free, $this);
     }
 
     /**
      * Checks if the invoice is paid.
      */
     public function is_paid() {
-        $is_paid = $this->has_status( array( 'publish', 'wpi-processing', 'wpi-renewal' ) );
-        return apply_filters( 'wpinv_invoice_is_paid', $is_paid, $this );
+        $is_paid = $this->has_status(array('publish', 'wpi-processing', 'wpi-renewal'));
+        return apply_filters('wpinv_invoice_is_paid', $is_paid, $this);
 	}
 
 	/**
      * Checks if the invoice needs payment.
      */
 	public function needs_payment() {
-		$needs_payment = ! $this->is_paid() && ! $this->is_refunded() && ! $this->is_free();
-        return apply_filters( 'wpinv_needs_payment', $needs_payment, $this );
+		$needs_payment = !$this->is_paid() && !$this->is_refunded() && !$this->is_free();
+        return apply_filters('wpinv_needs_payment', $needs_payment, $this);
     }
 
 	/**
      * Checks if the invoice is refunded.
      */
 	public function is_refunded() {
-        $is_refunded = $this->has_status( 'wpi-refunded' );
-        return apply_filters( 'wpinv_invoice_is_refunded', $is_refunded, $this );
+        $is_refunded = $this->has_status('wpi-refunded');
+        return apply_filters('wpinv_invoice_is_refunded', $is_refunded, $this);
 	}
 
 	/**
      * Checks if the invoice is held.
      */
 	public function is_held() {
-        $is_held = $this->has_status( 'wpi-onhold' );
-        return apply_filters( 'wpinv_invoice_is_held', $is_held, $this );
+        $is_held = $this->has_status('wpi-onhold');
+        return apply_filters('wpinv_invoice_is_held', $is_held, $this);
 	}
 
 	/**
@@ -3222,30 +3222,30 @@ 
      */
 	public function is_due() {
 		$due_date = $this->get_due_date();
-		return empty( $due_date ) ? false : current_time( 'timestamp' ) > strtotime( $due_date );
+		return empty($due_date) ? false : current_time('timestamp') > strtotime($due_date);
 	}
 
 	/**
      * Checks if the invoice is draft.
      */
 	public function is_draft() {
-        return $this->has_status( 'draft, auto-draft' );
+        return $this->has_status('draft, auto-draft');
 	}
 
     /**
      * Checks if the invoice has a given status.
      */
-    public function has_status( $status ) {
-        $status = wpinv_parse_list( $status );
-        return apply_filters( 'wpinv_has_status', in_array( $this->get_status(), $status ), $status );
+    public function has_status($status) {
+        $status = wpinv_parse_list($status);
+        return apply_filters('wpinv_has_status', in_array($this->get_status(), $status), $status);
 	}
 
 	/**
      * Checks if the invoice is of a given type.
      */
-    public function is_type( $type ) {
-        $type = wpinv_parse_list( $type );
-        return in_array( $this->get_type(), $type );
+    public function is_type($type) {
+        $type = wpinv_parse_list($type);
+        return in_array($this->get_type(), $type);
     }
 
     /**
@@ -3277,8 +3277,8 @@ 
      *
      */
 	public function is_initial_free() {
-        $is_initial_free = ! ( (float) wpinv_round_amount( $this->get_initial_total() ) > 0 );
-        return apply_filters( 'wpinv_invoice_is_initial_free', $is_initial_free, $this->get_cart_details(), $this );
+        $is_initial_free = !((float) wpinv_round_amount($this->get_initial_total()) > 0);
+        return apply_filters('wpinv_invoice_is_initial_free', $is_initial_free, $this->get_cart_details(), $this);
     }
 
 	/**
@@ -3288,11 +3288,11 @@ 
     public function item_has_free_trial() {
 
         // Ensure we have a recurring item.
-        if ( ! $this->is_recurring() ) {
+        if (!$this->is_recurring()) {
             return false;
         }
 
-        $item = $this->get_recurring( true );
+        $item = $this->get_recurring(true);
         return $item->has_free_trial();
 	}
 
@@ -3300,7 +3300,7 @@ 
      * Check if the free trial is a result of a discount.
      */
     public function is_free_trial_from_discount() {
-		return $this->has_free_trial() && ! $this->item_has_free_trial();
+		return $this->has_free_trial() && !$this->item_has_free_trial();
 	}
 
 	/**
@@ -3308,12 +3308,12 @@ 
      */
     public function discount_first_payment_only() {
 
-		$discount = wpinv_get_discount_obj( $this->get_discount_code() );
-        if ( ! $discount->exists() || ! $this->is_recurring() ) {
+		$discount = wpinv_get_discount_obj($this->get_discount_code());
+        if (!$discount->exists() || !$this->is_recurring()) {
             return true;
         }
 
-        return ! $discount->get_is_recurring();
+        return !$discount->get_is_recurring();
     }
 
     /*
@@ -3331,23 +3331,23 @@ 
      * @param GetPaid_Form_Item|array $item
      * @return WP_Error|Bool
      */
-    public function add_item( $item ) {
+    public function add_item($item) {
 
-		if ( is_array( $item ) ) {
-			$item = $this->process_array_item( $item );
+		if (is_array($item)) {
+			$item = $this->process_array_item($item);
 		}
 
-		if ( is_numeric( $item ) ) {
-			$item = new GetPaid_Form_Item( $item );
+		if (is_numeric($item)) {
+			$item = new GetPaid_Form_Item($item);
 		}
 
         // Make sure that it is available for purchase.
-		if ( $item->get_id() > 0 && ! $item->can_purchase() ) {
-			return new WP_Error( 'invalid_item', __( 'This item is not available for purchase', 'invoicing' ) );
+		if ($item->get_id() > 0 && !$item->can_purchase()) {
+			return new WP_Error('invalid_item', __('This item is not available for purchase', 'invoicing'));
         }
 
         // Do we have a recurring item?
-		if ( $item->is_recurring() ) {
+		if ($item->is_recurring()) {
 			$this->recurring_item = $item->get_id();
         }
 
@@ -3355,9 +3355,9 @@ 
         $item->invoice_id = (int) $this->get_id();
 
 		// Remove duplicates.
-		$this->remove_item( $item->get_id() );
+		$this->remove_item($item->get_id());
 
-		if ( 0 == $item->get_quantity() ) {
+		if (0 == $item->get_quantity()) {
 			return;
 		}
 
@@ -3367,7 +3367,7 @@ 
 		// Add new item.
         $items[] = $item;
 
-        $this->set_prop( 'items', $items );
+        $this->set_prop('items', $items);
 
 		return true;
 	}
@@ -3378,26 +3378,26 @@ 
 	 * @since 1.0.19
 	 * @return GetPaid_Form_Item
 	 */
-	protected function process_array_item( $array ) {
+	protected function process_array_item($array) {
 
-		$item_id = isset( $array['item_id'] ) ? $array['item_id'] : 0;
-		$item    = new GetPaid_Form_Item( $item_id );
+		$item_id = isset($array['item_id']) ? $array['item_id'] : 0;
+		$item    = new GetPaid_Form_Item($item_id);
 
 		// Set item data.
-		foreach ( array( 'name', 'price', 'description' ) as $key ) {
-			if ( isset( $array[ "item_$key" ] ) ) {
+		foreach (array('name', 'price', 'description') as $key) {
+			if (isset($array["item_$key"])) {
 				$method = "set_$key";
-				$item->$method( $array[ "item_$key" ] );
+				$item->$method($array["item_$key"]);
 			}
 		}
 
-		if ( isset( $array['quantity'] ) ) {
-			$item->set_quantity( $array['quantity'] );
+		if (isset($array['quantity'])) {
+			$item->set_quantity($array['quantity']);
 		}
 
 		// Set item meta.
-		if ( isset( $array['meta'] ) && is_array( $array['meta'] ) ) {
-			$item->set_item_meta( $array['meta'] );
+		if (isset($array['meta']) && is_array($array['meta'])) {
+			$item->set_item_meta($array['meta']);
 		}
 
 		return $item;
@@ -3410,10 +3410,10 @@ 
 	 * @since 1.0.19
 	 * @return GetPaid_Form_Item|null
 	 */
-	public function get_item( $item_id ) {
+	public function get_item($item_id) {
 
-		foreach ( $this->get_items() as $item ) {
-			if ( (int) $item_id == $item->get_id() ) {
+		foreach ($this->get_items() as $item) {
+			if ((int) $item_id == $item->get_id()) {
 				return $item;
 			}
 		}
@@ -3426,16 +3426,16 @@ 
 	 *
 	 * @since 1.0.19
 	 */
-	public function remove_item( $item_id ) {
+	public function remove_item($item_id) {
 		$items   = $this->get_items();
 		$item_id = (int) $item_id;
 
-		foreach ( $items as $index => $item ) {
-			if ( (int) $item_id == $item->get_id() ) {
-				unset( $items[ $index ] );
-				$this->set_prop( 'items', $items );
+		foreach ($items as $index => $item) {
+			if ((int) $item_id == $item->get_id()) {
+				unset($items[$index]);
+				$this->set_prop('items', $items);
 
-				if ( $item_id == $this->recurring_item ) {
+				if ($item_id == $this->recurring_item) {
 					$this->recurring_item = null;
 				}
 }
@@ -3449,11 +3449,11 @@ 
 	 * @param array $fee An array of fee details. name, initial_fee, and recurring_fee are required.
 	 * @since 1.0.19
 	 */
-    public function add_fee( $fee ) {
+    public function add_fee($fee) {
 
 		$fees                 = $this->get_fees();
-		$fees[ $fee['name'] ] = $fee;
-		$this->set_prop( 'fees', $fees );
+		$fees[$fee['name']] = $fee;
+		$this->set_prop('fees', $fees);
 
     }
 
@@ -3462,9 +3462,9 @@ 
 	 *
 	 * @since 1.0.19
 	 */
-	public function get_fee( $fee ) {
+	public function get_fee($fee) {
         $fees = $this->get_fees();
-		return isset( $fees[ $fee ] ) ? $fees[ $fee ] : null;
+		return isset($fees[$fee]) ? $fees[$fee] : null;
     }
 
     /**
@@ -3472,11 +3472,11 @@ 
 	 *
 	 * @since 1.0.19
 	 */
-	public function remove_fee( $fee ) {
+	public function remove_fee($fee) {
         $fees = $this->get_fees();
-        if ( isset( $fees[ $fee ] ) ) {
-            unset( $fees[ $fee ] );
-            $this->set_prop( 'fees', $fees );
+        if (isset($fees[$fee])) {
+            unset($fees[$fee]);
+            $this->set_prop('fees', $fees);
         }
     }
 
@@ -3486,11 +3486,11 @@ 
 	 * @param array $discount An array of discount details. name, initial_discount, and recurring_discount are required. Include discount_code if the discount is from a discount code.
 	 * @since 1.0.19
 	 */
-	public function add_discount( $discount ) {
+	public function add_discount($discount) {
 
 		$discounts = $this->get_discounts();
-		$discounts[ $discount['name'] ] = $discount;
-		$this->set_prop( 'discounts', $discounts );
+		$discounts[$discount['name']] = $discount;
+		$this->set_prop('discounts', $discounts);
 
 	}
 
@@ -3500,15 +3500,15 @@ 
 	 * @since 1.0.19
 	 * @return float
 	 */
-	public function get_discount( $discount = false ) {
+	public function get_discount($discount = false) {
 
 		// Backwards compatibilty.
-		if ( empty( $discount ) ) {
+		if (empty($discount)) {
 			return $this->get_total_discount();
 		}
 
         $discounts = $this->get_discounts();
-		return isset( $discounts[ $discount ] ) ? $discounts[ $discount ] : null;
+		return isset($discounts[$discount]) ? $discounts[$discount] : null;
     }
 
     /**
@@ -3516,15 +3516,15 @@ 
 	 *
 	 * @since 1.0.19
 	 */
-	public function remove_discount( $discount ) {
+	public function remove_discount($discount) {
         $discounts = $this->get_discounts();
-        if ( isset( $discounts[ $discount ] ) ) {
-            unset( $discounts[ $discount ] );
-            $this->set_prop( 'discounts', $discounts );
+        if (isset($discounts[$discount])) {
+            unset($discounts[$discount]);
+            $this->set_prop('discounts', $discounts);
         }
 
-		if ( 'discount_code' == $discount ) {
-			foreach ( $this->get_items() as $item ) {
+		if ('discount_code' == $discount) {
+			foreach ($this->get_items() as $item) {
 				$item->item_discount           = 0;
 				$item->recurring_item_discount = 0;
 			}
@@ -3537,12 +3537,12 @@ 
      *
      * @param array $tax An array of tax details. name, initial_tax, and recurring_tax are required.
      */
-    public function add_tax( $tax ) {
-        if ( $this->is_taxable() ) {
+    public function add_tax($tax) {
+        if ($this->is_taxable()) {
 
-            $taxes                 = $this->get_taxes();
-			$taxes[ $tax['name'] ] = $tax;
-			$this->set_prop( 'taxes', $tax );
+            $taxes = $this->get_taxes();
+			$taxes[$tax['name']] = $tax;
+			$this->set_prop('taxes', $tax);
 
         }
     }
@@ -3552,26 +3552,26 @@ 
 	 *
 	 * @since 1.0.19
 	 */
-	public function get_tax( $tax = null ) {
+	public function get_tax($tax = null) {
 
 		// Backwards compatility.
-		if ( empty( $tax ) ) {
+		if (empty($tax)) {
 			return $this->get_total_tax();
 		}
 
         $taxes = $this->get_taxes();
-		return isset( $taxes[ $tax ] ) ? $taxes[ $tax ] : null;
+		return isset($taxes[$tax]) ? $taxes[$tax] : null;
     }
 
-	public function get_tax_total_by_name( $name ) {
+	public function get_tax_total_by_name($name) {
 
-		if ( empty( $name ) ) {
+		if (empty($name)) {
 			return 0;
 		}
 
-		$tax = $this->get_tax( $name );
+		$tax = $this->get_tax($name);
 
-		if ( empty( $tax ) ) {
+		if (empty($tax)) {
 			return 0;
 		}
 
@@ -3583,11 +3583,11 @@ 
 	 *
 	 * @since 1.0.19
 	 */
-	public function remove_tax( $tax ) {
+	public function remove_tax($tax) {
         $taxes = $this->get_taxes();
-        if ( isset( $taxes[ $tax ] ) ) {
-            unset( $taxes[ $tax ] );
-            $this->set_prop( 'taxes', $taxes );
+        if (isset($taxes[$tax])) {
+            unset($taxes[$tax]);
+            $this->set_prop('taxes', $taxes);
         }
     }
 
@@ -3598,22 +3598,22 @@ 
 	 * @return float The recalculated subtotal
 	 */
 	public function recalculate_subtotal() {
-        $items     = $this->get_items();
+        $items = $this->get_items();
 		$subtotal  = 0;
 		$recurring = 0;
 
-        foreach ( $items as $item ) {
-			$subtotal  += $item->get_sub_total( 'edit' );
-			$recurring += $item->get_recurring_sub_total( 'edit' );
+        foreach ($items as $item) {
+			$subtotal  += $item->get_sub_total('edit');
+			$recurring += $item->get_recurring_sub_total('edit');
         }
 
-		if ( wpinv_prices_include_tax() ) {
-			$subtotal  = max( 0, $subtotal - $this->totals['tax']['initial'] );
-			$recurring = max( 0, $recurring - $this->totals['tax']['recurring'] );
+		if (wpinv_prices_include_tax()) {
+			$subtotal  = max(0, $subtotal - $this->totals['tax']['initial']);
+			$recurring = max(0, $recurring - $this->totals['tax']['recurring']);
 		}
 
 		$current = $this->is_renewal() ? $recurring : $subtotal;
-		$this->set_subtotal( $current );
+		$this->set_subtotal($current);
 
 		$this->totals['subtotal'] = array(
 			'initial'   => $subtotal,
@@ -3634,14 +3634,14 @@ 
 		$discount  = 0;
 		$recurring = 0;
 
-        foreach ( $discounts as $data ) {
-			$discount  += wpinv_sanitize_amount( $data['initial_discount'] );
-			$recurring += wpinv_sanitize_amount( $data['recurring_discount'] );
+        foreach ($discounts as $data) {
+			$discount  += wpinv_sanitize_amount($data['initial_discount']);
+			$recurring += wpinv_sanitize_amount($data['recurring_discount']);
 		}
 
 		$current = $this->is_renewal() ? $recurring : $discount;
 
-		$this->set_total_discount( $current );
+		$this->set_total_discount($current);
 
 		$this->totals['discount'] = array(
 			'initial'   => $discount,
@@ -3662,13 +3662,13 @@ 
 
 		// Maybe disable taxes.
 		$vat_number = $this->get_vat_number();
-		$skip_tax   = GetPaid_Payment_Form_Submission_Taxes::is_eu_transaction( $this->get_country() ) && ! empty( $vat_number );
+		$skip_tax   = GetPaid_Payment_Form_Submission_Taxes::is_eu_transaction($this->get_country()) && !empty($vat_number);
 
-		if ( wpinv_is_base_country( $this->get_country() ) && 'vat_too' === wpinv_get_option( 'vat_same_country_rule', 'vat_too' ) ) {
+		if (wpinv_is_base_country($this->get_country()) && 'vat_too' === wpinv_get_option('vat_same_country_rule', 'vat_too')) {
 			$skip_tax = false;
 		}
 
-		if ( ! wpinv_use_taxes() || $this->get_disable_taxes() || ! wpinv_is_country_taxable( $this->get_country() ) || $skip_tax ) {
+		if (!wpinv_use_taxes() || $this->get_disable_taxes() || !wpinv_is_country_taxable($this->get_country()) || $skip_tax) {
 
 			$this->totals['tax'] = array(
 				'initial'   => 0,
@@ -3677,37 +3677,37 @@ 
 
 			$this->tax_rate = 0;
 
-			$this->set_taxes( array() );
+			$this->set_taxes(array());
 			$current = 0;
 		} else {
 
 			$item_taxes = array();
 
-			foreach ( $this->get_items() as $item ) {
-				$rates    = getpaid_get_item_tax_rates( $item, $this->get_country(), $this->get_state() );
-				$rates    = getpaid_filter_item_tax_rates( $item, $rates );
-				$taxes    = getpaid_calculate_item_taxes( getpaid_get_taxable_amount( $item, false ), $rates );
-				$r_taxes  = getpaid_calculate_item_taxes( getpaid_get_taxable_amount( $item, true ), $rates );
-				foreach ( $taxes as $name => $amount ) {
-					$recurring = isset( $r_taxes[ $name ] ) ? $r_taxes[ $name ] : 0;
-					$tax       = getpaid_prepare_item_tax( $item, $name, $amount, $recurring );
-
-					if ( ! isset( $item_taxes[ $name ] ) ) {
-						$item_taxes[ $name ] = $tax;
+			foreach ($this->get_items() as $item) {
+				$rates    = getpaid_get_item_tax_rates($item, $this->get_country(), $this->get_state());
+				$rates    = getpaid_filter_item_tax_rates($item, $rates);
+				$taxes    = getpaid_calculate_item_taxes(getpaid_get_taxable_amount($item, false), $rates);
+				$r_taxes  = getpaid_calculate_item_taxes(getpaid_get_taxable_amount($item, true), $rates);
+				foreach ($taxes as $name => $amount) {
+					$recurring = isset($r_taxes[$name]) ? $r_taxes[$name] : 0;
+					$tax       = getpaid_prepare_item_tax($item, $name, $amount, $recurring);
+
+					if (!isset($item_taxes[$name])) {
+						$item_taxes[$name] = $tax;
 						continue;
 					}
 
-					$item_taxes[ $name ]['initial_tax']   += $tax['initial_tax'];
-					$item_taxes[ $name ]['recurring_tax'] += $tax['recurring_tax'];
+					$item_taxes[$name]['initial_tax']   += $tax['initial_tax'];
+					$item_taxes[$name]['recurring_tax'] += $tax['recurring_tax'];
 
 				}
 			}
 
-			$item_taxes = array_replace( $this->get_taxes(), $item_taxes );
-			$this->set_taxes( $item_taxes );
+			$item_taxes = array_replace($this->get_taxes(), $item_taxes);
+			$this->set_taxes($item_taxes);
 
-			$initial_tax   = array_sum( wp_list_pluck( $item_taxes, 'initial_tax' ) );
-			$recurring_tax = array_sum( wp_list_pluck( $item_taxes, 'recurring_tax' ) );
+			$initial_tax   = array_sum(wp_list_pluck($item_taxes, 'initial_tax'));
+			$recurring_tax = array_sum(wp_list_pluck($item_taxes, 'recurring_tax'));
 
 			$current = $this->is_renewal() ? $recurring_tax : $initial_tax;
 
@@ -3718,7 +3718,7 @@ 
 
 		}
 
-		$this->set_total_tax( $current );
+		$this->set_total_tax($current);
 
 		return $current;
 
@@ -3735,20 +3735,20 @@ 
 		$fee       = 0;
 		$recurring = 0;
 
-        foreach ( $fees as $data ) {
-			$fee       += wpinv_sanitize_amount( $data['initial_fee'] );
-			$recurring += wpinv_sanitize_amount( $data['recurring_fee'] );
+        foreach ($fees as $data) {
+			$fee       += wpinv_sanitize_amount($data['initial_fee']);
+			$recurring += wpinv_sanitize_amount($data['recurring_fee']);
 		}
 
 		$current = $this->is_renewal() ? $recurring : $fee;
-		$this->set_total_fees( $current );
+		$this->set_total_fees($current);
 
 		$this->totals['fee'] = array(
 			'initial'   => $fee,
 			'recurring' => $recurring,
 		);
 
-        $this->set_total_fees( $fee );
+        $this->set_total_fees($fee);
         return $current;
     }
 
@@ -3763,7 +3763,7 @@ 
         $this->recalculate_total_discount();
 		$this->recalculate_total_tax();
 		$this->recalculate_subtotal();
-		$this->set_total( $this->get_total_tax( 'edit' ) + $this->get_total_fees( 'edit' ) + $this->get_subtotal( 'edit' ) - $this->get_total_discount( 'edit' ) );
+		$this->set_total($this->get_total_tax('edit') + $this->get_total_fees('edit') + $this->get_subtotal('edit') - $this->get_total_discount('edit'));
 		return $this->get_total();
 	}
 
@@ -3772,7 +3772,7 @@ 
 	 */
     public function recalculate_totals() {
         $this->recalculate_total();
-        $this->save( true );
+        $this->save(true);
         return $this;
     }
 
@@ -3790,8 +3790,8 @@ 
 	 * @return int|false The new note's ID on success, false on failure.
      *
      */
-    public function add_system_note( $note ) {
-		return $this->add_note( $note, false, false, true );
+    public function add_system_note($note) {
+		return $this->add_note($note, false, false, true);
 	}
 
     /**
@@ -3801,10 +3801,10 @@ 
 	 * @return int|false The new note's ID on success, false on failure.
      *
      */
-    public function add_note( $note = '', $customer_type = false, $added_by_user = false, $system = false ) {
+    public function add_note($note = '', $customer_type = false, $added_by_user = false, $system = false) {
 
         // Bail if no note specified or this invoice is not yet saved.
-        if ( ! $note || $this->get_id() == 0 || ( ! is_user_logged_in() && ! $system ) ) {
+        if (!$note || $this->get_id() == 0 || (!is_user_logged_in() && !$system)) {
             return false;
         }
 
@@ -3812,23 +3812,23 @@ 
 		$author_email = 'bot@wpinvoicing.com';
 
 		// If this is an admin comment or it has been added by the user.
-		if ( is_user_logged_in() && ( ! $system || $added_by_user ) ) {
-			$user         = get_user_by( 'id', get_current_user_id() );
+		if (is_user_logged_in() && (!$system || $added_by_user)) {
+			$user = get_user_by('id', get_current_user_id());
             $author       = $user->display_name;
             $author_email = $user->user_email;
 		}
 
-		return getpaid_notes()->add_invoice_note( $this, $note, $author, $author_email, $customer_type );
+		return getpaid_notes()->add_invoice_note($this, $note, $author, $author_email, $customer_type);
 
 	}
 
 	/**
      * Generates a unique key for the invoice.
      */
-    public function generate_key( $string = '' ) {
-        $auth_key  = defined( 'AUTH_KEY' ) ? AUTH_KEY : '';
+    public function generate_key($string = '') {
+        $auth_key = defined('AUTH_KEY') ? AUTH_KEY : '';
         return strtolower(
-            $string . md5( $this->get_id() . date( 'Y-m-d H:i:s' ) . $auth_key . uniqid( 'wpinv', true ) )
+            $string . md5($this->get_id() . date('Y-m-d H:i:s') . $auth_key . uniqid('wpinv', true))
         );
     }
 
@@ -3838,11 +3838,11 @@ 
     public function generate_number() {
         $number = $this->get_id();
 
-        if ( wpinv_sequential_number_active( $this->get_post_type() ) ) {
-            $number = wpinv_get_next_invoice_number( $this->get_post_type() );
+        if (wpinv_sequential_number_active($this->get_post_type())) {
+            $number = wpinv_get_next_invoice_number($this->get_post_type());
         }
 
-		return wpinv_format_invoice_number( $number, $this->get_post_type() );
+		return wpinv_format_invoice_number($number, $this->get_post_type());
 
 	}
 
@@ -3855,55 +3855,55 @@ 
 		// Reset status transition variable.
 		$this->status_transition = false;
 
-		if ( $status_transition ) {
+		if ($status_transition) {
 			try {
 
 				// Fire a hook for the status change.
-				do_action( 'getpaid_invoice_status_' . $status_transition['to'], $this, $status_transition );
+				do_action('getpaid_invoice_status_' . $status_transition['to'], $this, $status_transition);
 
 				// @deprecated this is deprecated and will be removed in the future.
-				do_action( 'wpinv_status_' . $status_transition['to'], $this->get_id(), $status_transition['from'] );
+				do_action('wpinv_status_' . $status_transition['to'], $this->get_id(), $status_transition['from']);
 
-				if ( ! empty( $status_transition['from'] ) ) {
+				if (!empty($status_transition['from'])) {
 
 					/* translators: 1: old invoice status 2: new invoice status */
-					$transition_note = sprintf( __( 'Status changed from %1$s to %2$s.', 'invoicing' ), wpinv_status_nicename( $status_transition['from'], $this ), wpinv_status_nicename( $status_transition['to'], $this ) );
+					$transition_note = sprintf(__('Status changed from %1$s to %2$s.', 'invoicing'), wpinv_status_nicename($status_transition['from'], $this), wpinv_status_nicename($status_transition['to'], $this));
 
 					// Fire another hook.
-					do_action( 'getpaid_invoice_status_' . $status_transition['from'] . '_to_' . $status_transition['to'], $this );
-					do_action( 'getpaid_invoice_status_changed', $this, $status_transition['from'], $status_transition['to'] );
+					do_action('getpaid_invoice_status_' . $status_transition['from'] . '_to_' . $status_transition['to'], $this);
+					do_action('getpaid_invoice_status_changed', $this, $status_transition['from'], $status_transition['to']);
 
 					// @deprecated this is deprecated and will be removed in the future.
-					do_action( 'wpinv_status_' . $status_transition['from'] . '_to_' . $status_transition['to'], $this->get_id(), $status_transition['from'] );
+					do_action('wpinv_status_' . $status_transition['from'] . '_to_' . $status_transition['to'], $this->get_id(), $status_transition['from']);
 
 					// Note the transition occurred.
-					$this->add_note( trim( $status_transition['note'] . ' ' . $transition_note ), false, $status_transition['manual'] );
+					$this->add_note(trim($status_transition['note'] . ' ' . $transition_note), false, $status_transition['manual']);
 
 					// Work out if this was for a payment, and trigger a payment_status hook instead.
 					if (
-						in_array( $status_transition['from'], array( 'wpi-cancelled', 'wpi-pending', 'wpi-failed', 'wpi-refunded', 'wpi-onhold' ), true )
-						&& in_array( $status_transition['to'], array( 'publish', 'wpi-processing', 'wpi-renewal' ), true )
+						in_array($status_transition['from'], array('wpi-cancelled', 'wpi-pending', 'wpi-failed', 'wpi-refunded', 'wpi-onhold'), true)
+						&& in_array($status_transition['to'], array('publish', 'wpi-processing', 'wpi-renewal'), true)
 					) {
-						do_action( 'getpaid_invoice_payment_status_changed', $this, $status_transition );
+						do_action('getpaid_invoice_payment_status_changed', $this, $status_transition);
 					}
 
 					// Work out if this was for a payment reversal, and trigger a payment_status_reversed hook instead.
 					if (
-						in_array( $status_transition['from'], array( 'publish', 'wpi-processing', 'wpi-renewal' ), true )
-						&& in_array( $status_transition['to'], array( 'wpi-cancelled', 'wpi-pending', 'wpi-failed', 'wpi-refunded', 'wpi-onhold' ), true )
+						in_array($status_transition['from'], array('publish', 'wpi-processing', 'wpi-renewal'), true)
+						&& in_array($status_transition['to'], array('wpi-cancelled', 'wpi-pending', 'wpi-failed', 'wpi-refunded', 'wpi-onhold'), true)
 					) {
-						do_action( 'getpaid_invoice_payment_status_reversed', $this, $status_transition );
+						do_action('getpaid_invoice_payment_status_reversed', $this, $status_transition);
 					}
 				} else {
 					/* translators: %s: new invoice status */
-					$transition_note = sprintf( __( 'Status set to %s.', 'invoicing' ), wpinv_status_nicename( $status_transition['to'], $this ) );
+					$transition_note = sprintf(__('Status set to %s.', 'invoicing'), wpinv_status_nicename($status_transition['to'], $this));
 
 					// Note the transition occurred.
-					$this->add_note( trim( $status_transition['note'] . ' ' . $transition_note ), 0, $status_transition['manual'] );
+					$this->add_note(trim($status_transition['note'] . ' ' . $transition_note), 0, $status_transition['manual']);
 
 				}
-			} catch ( Exception $e ) {
-				$this->add_note( __( 'Error during status transition.', 'invoicing' ) . ' ' . $e->getMessage() );
+			} catch (Exception $e) {
+				$this->add_note(__('Error during status transition.', 'invoicing') . ' ' . $e->getMessage());
 			}
 		}
 	}
@@ -3911,13 +3911,13 @@ 
 	/**
 	 * Updates an invoice status.
 	 */
-	public function update_status( $new_status = false, $note = '', $manual = false ) {
+	public function update_status($new_status = false, $note = '', $manual = false) {
 
 		// Fires before updating a status.
-		do_action( 'wpinv_before_invoice_status_change', $this->get_id(), $new_status, $this->get_status( 'edit' ) );
+		do_action('wpinv_before_invoice_status_change', $this->get_id(), $new_status, $this->get_status('edit'));
 
 		// Update the status.
-		$this->set_status( $new_status, $note, $manual );
+		$this->set_status($new_status, $note, $manual);
 
 		// Save the order.
 		return $this->save();
@@ -3928,18 +3928,18 @@ 
 	 * @deprecated
 	 */
 	public function refresh_item_ids() {
-        $item_ids = implode( ',', array_unique( wp_list_pluck( $this->get_cart_details(), 'item_id' ) ) );
-        update_post_meta( $this->get_id(), '_wpinv_item_ids', $item_ids );
+        $item_ids = implode(',', array_unique(wp_list_pluck($this->get_cart_details(), 'item_id')));
+        update_post_meta($this->get_id(), '_wpinv_item_ids', $item_ids);
 	}
 
 	/**
 	 * @deprecated
 	 */
-	public function update_items( $temp = false ) {
+	public function update_items($temp = false) {
 
-		$this->set_items( $this->get_items() );
+		$this->set_items($this->get_items());
 
-		if ( ! $temp ) {
+		if (!$temp) {
 			$this->save();
 		}
 
@@ -3953,11 +3953,11 @@ 
 
         $discount_code = $this->get_discount_code();
 
-        if ( empty( $discount_code ) ) {
+        if (empty($discount_code)) {
             return false;
         }
 
-        $discount = wpinv_get_discount_obj( $discount_code );
+        $discount = wpinv_get_discount_obj($discount_code);
 
         // Ensure it is active.
         return $discount->exists();
@@ -3968,7 +3968,7 @@ 
 	 * Refunds an invoice.
 	 */
     public function refund() {
-		$this->set_status( 'wpi-refunded' );
+		$this->set_status('wpi-refunded');
         $this->save();
 	}
 
@@ -3977,53 +3977,53 @@ 
 	 *
 	 * @param string $transaction_id
 	 */
-    public function mark_paid( $transaction_id = null, $note = '' ) {
+    public function mark_paid($transaction_id = null, $note = '') {
 
 		// Set the transaction id.
-		if ( empty( $transaction_id ) ) {
-			$transaction_id = $this->generate_key( 'trans_' );
+		if (empty($transaction_id)) {
+			$transaction_id = $this->generate_key('trans_');
 		}
 
-		if ( ! $this->get_transaction_id() ) {
-			$this->set_transaction_id( $transaction_id );
+		if (!$this->get_transaction_id()) {
+			$this->set_transaction_id($transaction_id);
 		}
 
-		if ( $this->is_paid() && 'wpi-processing' !== $this->get_status() ) {
+		if ($this->is_paid() && 'wpi-processing' !== $this->get_status()) {
 			return $this->save();
 		}
 
 		// Set the completed date.
-		$this->set_date_completed( current_time( 'mysql' ) );
+		$this->set_date_completed(current_time('mysql'));
 
 		// Set the new status.
-		$gateway = sanitize_text_field( $this->get_gateway_title() );
-		if ( $this->is_renewal() || ! $this->is_parent() ) {
+		$gateway = sanitize_text_field($this->get_gateway_title());
+		if ($this->is_renewal() || !$this->is_parent()) {
 
-			$_note = wp_sprintf( __( 'Renewed via %s', 'invoicing' ), $gateway );
-			$_note = $_note . empty( $note ) ? '' : " ($note)";
+			$_note = wp_sprintf(__('Renewed via %s', 'invoicing'), $gateway);
+			$_note = $_note . empty($note) ? '' : " ($note)";
 
-			if ( 'none' == $this->get_gateway() ) {
+			if ('none' == $this->get_gateway()) {
 				$_note = $note;
 			}
 
-			$this->set_status( 'wpi-renewal', $_note );
+			$this->set_status('wpi-renewal', $_note);
 
 		} else {
 
-			$_note = wp_sprintf( __( 'Paid via %s', 'invoicing' ), $gateway );
-			$_note = $_note . empty( $note ) ? '' : " ($note)";
+			$_note = wp_sprintf(__('Paid via %s', 'invoicing'), $gateway);
+			$_note = $_note . empty($note) ? '' : " ($note)";
 
-			if ( 'none' == $this->get_gateway() ) {
+			if ('none' == $this->get_gateway()) {
 				$_note = $note;
 			}
 
-			$this->set_status( 'publish', $_note );
+			$this->set_status('publish', $_note);
 
 		}
 
 		// Set checkout mode.
-		$mode = wpinv_is_test_mode( $this->get_gateway() ) ? 'test' : 'live';
-		$this->set_mode( $mode );
+		$mode = wpinv_is_test_mode($this->get_gateway()) ? 'test' : 'live';
+		$this->set_mode($mode);
 
 		// Save the invoice.
         $this->save();
@@ -4048,16 +4048,16 @@ 
      * Clears the subscription's cache.
      */
     public function clear_cache() {
-		if ( $this->get_key() ) {
-			wp_cache_delete( $this->get_key(), 'getpaid_invoice_keys_to_invoice_ids' );
+		if ($this->get_key()) {
+			wp_cache_delete($this->get_key(), 'getpaid_invoice_keys_to_invoice_ids');
 		}
 
-		if ( $this->get_number() ) {
-			wp_cache_delete( $this->get_number(), 'getpaid_invoice_numbers_to_invoice_ids' );
+		if ($this->get_number()) {
+			wp_cache_delete($this->get_number(), 'getpaid_invoice_numbers_to_invoice_ids');
 		}
 
-		if ( $this->get_transaction_id() ) {
-			wp_cache_delete( $this->get_transaction_id(), 'getpaid_invoice_transaction_ids_to_invoice_ids' );
+		if ($this->get_transaction_id()) {
+			wp_cache_delete($this->get_transaction_id(), 'getpaid_invoice_transaction_ids_to_invoice_ids');
 		}
 	}
 

includes/class-getpaid-tax.php

Spacing +43 added lines, -43 removed lines

@@ -5,7 +5,7 @@ 
  *
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * Class GetPaid_Tax
@@ -21,15 +21,15 @@ 
 	 * @param  boolean $price_includes_tax Whether the passed price has taxes included.
 	 * @return array                       Array of tax name => tax amount.
 	 */
-	public static function calc_tax( $price, $rates, $price_includes_tax = false ) {
+	public static function calc_tax($price, $rates, $price_includes_tax = false) {
 
-		if ( $price_includes_tax ) {
-			$taxes = self::calc_inclusive_tax( $price, $rates );
+		if ($price_includes_tax) {
+			$taxes = self::calc_inclusive_tax($price, $rates);
 		} else {
-			$taxes = self::calc_exclusive_tax( $price, $rates );
+			$taxes = self::calc_exclusive_tax($price, $rates);
 		}
 
-		return apply_filters( 'getpaid_calc_tax', $taxes, $price, $rates, $price_includes_tax );
+		return apply_filters('getpaid_calc_tax', $taxes, $price, $rates, $price_includes_tax);
 
 	}
 
@@ -40,22 +40,22 @@ 
 	 * @param  array $rates Array of tax rates.
 	 * @return array
 	 */
-	public static function calc_inclusive_tax( $price, $rates ) {
+	public static function calc_inclusive_tax($price, $rates) {
 		$taxes     = array();
-		$tax_rates = wp_list_pluck( $rates, 'rate', 'name' );
+		$tax_rates = wp_list_pluck($rates, 'rate', 'name');
 
 		// Add tax rates.
-		$tax_rate  = 1 + ( array_sum( $tax_rates ) / 100 );
+		$tax_rate  = 1 + (array_sum($tax_rates) / 100);
 
-		foreach ( $tax_rates as $name => $rate ) {
-			$the_rate       = ( $rate / 100 ) / $tax_rate;
-			$net_price      = $price - ( $the_rate * $price );
-			$tax_amount     = apply_filters( 'getpaid_price_inc_tax_amount', $price - $net_price, $name, $rate, $price );
-			$taxes[ $name ] = $tax_amount;
+		foreach ($tax_rates as $name => $rate) {
+			$the_rate       = ($rate / 100) / $tax_rate;
+			$net_price      = $price - ($the_rate * $price);
+			$tax_amount     = apply_filters('getpaid_price_inc_tax_amount', $price - $net_price, $name, $rate, $price);
+			$taxes[$name] = $tax_amount;
 		}
 
 		// Round all taxes to precision (4DP) before passing them back.
-		$taxes = array_map( array( __CLASS__, 'round' ), $taxes );
+		$taxes = array_map(array(__CLASS__, 'round'), $taxes);
 
 		return $taxes;
 	}
@@ -67,19 +67,19 @@ 
 	 * @param  array $rates Array of tax rates.
 	 * @return array
 	 */
-	public static function calc_exclusive_tax( $price, $rates ) {
+	public static function calc_exclusive_tax($price, $rates) {
 		$taxes     = array();
-		$tax_rates = wp_list_pluck( $rates, 'rate', 'name' );
+		$tax_rates = wp_list_pluck($rates, 'rate', 'name');
 
-		foreach ( $tax_rates as $name => $rate ) {
+		foreach ($tax_rates as $name => $rate) {
 
-			$tax_amount     = $price * ( $rate / 100 );
-			$taxes[ $name ] = apply_filters( 'getpaid_price_ex_tax_amount', $tax_amount, $name, $rate, $price );
+			$tax_amount     = $price * ($rate / 100);
+			$taxes[$name] = apply_filters('getpaid_price_ex_tax_amount', $tax_amount, $name, $rate, $price);
 
 		}
 
 		// Round all taxes to precision (4DP) before passing them back.
-		$taxes = array_map( array( __CLASS__, 'round' ), $taxes );
+		$taxes = array_map(array(__CLASS__, 'round'), $taxes);
 
 		return $taxes;
 	}
@@ -91,11 +91,11 @@ 
 	 */
 	public static function get_all_tax_rates() {
 
-		$rates = get_option( 'wpinv_tax_rates', array() );
+		$rates = get_option('wpinv_tax_rates', array());
 
 		return apply_filters(
 			'getpaid_get_all_tax_rates',
-			array_filter( wpinv_parse_list( $rates ) )
+			array_filter(wpinv_parse_list($rates))
 		);
 
 	}
@@ -115,7 +115,7 @@ 
 					'state'   => wpinv_get_default_state(),
 					'global'  => true,
 					'rate'    => wpinv_get_default_tax_rate(),
-					'name'    => __( 'Tax', 'invoicing' ),
+					'name'    => __('Tax', 'invoicing'),
 				),
 			)
 		);
@@ -134,22 +134,22 @@ 
 			array(
 				array(
 					'key'               => 'physical',
-					'label'             => __( 'Physical Item', 'invoicing' ),
-					'tax_base'          => wpinv_get_option( 'tax_base', 'billing' ),
-					'same_country_rule' => wpinv_get_option( 'vat_same_country_rule', 'vat_too' ),
+					'label'             => __('Physical Item', 'invoicing'),
+					'tax_base'          => wpinv_get_option('tax_base', 'billing'),
+					'same_country_rule' => wpinv_get_option('vat_same_country_rule', 'vat_too'),
 				),
 				array(
 					'key'               => 'digital',
-					'label'             => __( 'Digital Item', 'invoicing' ),
-					'tax_base'          => wpinv_get_option( 'tax_base', 'billing' ),
-					'same_country_rule' => wpinv_get_option( 'vat_same_country_rule', 'vat_too' ),
+					'label'             => __('Digital Item', 'invoicing'),
+					'tax_base'          => wpinv_get_option('tax_base', 'billing'),
+					'same_country_rule' => wpinv_get_option('vat_same_country_rule', 'vat_too'),
 				),
         	)
 		);
 
 		return apply_filters(
 			'getpaid_tax_rules',
-			array_filter( array_values( wpinv_parse_list( $rules ) ) )
+			array_filter(array_values(wpinv_parse_list($rules)))
 		);
 
 	}
@@ -161,23 +161,23 @@ 
 	 * @param string $state
 	 * @return array
 	 */
-	public static function get_address_tax_rates( $country, $state ) {
+	public static function get_address_tax_rates($country, $state) {
 
 		$all_tax_rates  = self::get_all_tax_rates();
 		$matching_rates = array_merge(
-			wp_list_filter( $all_tax_rates, array( 'country' => $country ) ),
-			wp_list_filter( $all_tax_rates, array( 'country' => '' ) )
+			wp_list_filter($all_tax_rates, array('country' => $country)),
+			wp_list_filter($all_tax_rates, array('country' => ''))
 		);
 
-		foreach ( $matching_rates as $i => $rate ) {
+		foreach ($matching_rates as $i => $rate) {
 
-			$states = array_filter( wpinv_clean( explode( ',', strtolower( $rate['state'] ) ) ) );
-			if ( empty( $rate['global'] ) && ! in_array( strtolower( $state ), $states ) ) {
-				unset( $matching_rates[ $i ] );
+			$states = array_filter(wpinv_clean(explode(',', strtolower($rate['state']))));
+			if (empty($rate['global']) && !in_array(strtolower($state), $states)) {
+				unset($matching_rates[$i]);
 			}
 }
 
-		return apply_filters( 'getpaid_get_address_tax_rates', $matching_rates, $country, $state );
+		return apply_filters('getpaid_get_address_tax_rates', $matching_rates, $country, $state);
 
 	}
 
@@ -187,8 +187,8 @@ 
 	 * @param  array $taxes Array of taxes.
 	 * @return float
 	 */
-	public static function get_tax_total( $taxes ) {
-		return self::round( array_sum( $taxes ) );
+	public static function get_tax_total($taxes) {
+		return self::round(array_sum($taxes));
 	}
 
 	/**
@@ -204,8 +204,8 @@ 
 	 * @param float|int $in Value to round.
 	 * @return float
 	 */
-	public static function round( $in ) {
-		return apply_filters( 'getpaid_tax_round', round( $in, 4 ), $in );
+	public static function round($in) {
+		return apply_filters('getpaid_tax_round', round($in, 4), $in);
 	}
 
 }

includes/invoice-functions.php

Spacing +373 added lines, -373 removed lines

@@ -6,7 +6,7 @@ 
  * @package Invoicing
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * Retrieves the current invoice.
@@ -14,15 +14,15 @@ 
 function getpaid_get_current_invoice_id() {
 
     // Ensure that we have an invoice key.
-    if ( empty( $_GET['invoice_key'] ) ) {
+    if (empty($_GET['invoice_key'])) {
         return 0;
     }
 
     // Retrieve an invoice using the key.
-    $invoice = new WPInv_Invoice( sanitize_text_field( $_GET['invoice_key'] ) );
+    $invoice = new WPInv_Invoice(sanitize_text_field($_GET['invoice_key']));
 
     // Compare the invoice key and the parsed key.
-    if ( $invoice->get_id() != 0 && $invoice->get_key() == sanitize_text_field( $_GET['invoice_key'] ) ) {
+    if ($invoice->get_id() != 0 && $invoice->get_key() == sanitize_text_field($_GET['invoice_key'])) {
         return $invoice->get_id();
     }
 
@@ -32,42 +32,42 @@ 
 /**
  * Checks if the current user cna view an invoice.
  */
-function wpinv_user_can_view_invoice( $invoice ) {
-    $invoice = new WPInv_Invoice( $invoice );
+function wpinv_user_can_view_invoice($invoice) {
+    $invoice = new WPInv_Invoice($invoice);
 
     // Abort if the invoice does not exist.
-    if ( 0 == $invoice->get_id() ) {
+    if (0 == $invoice->get_id()) {
         return false;
     }
 
     // Don't allow trash, draft status
-    if ( $invoice->is_draft() ) {
+    if ($invoice->is_draft()) {
         return false;
     }
 
     // If users are not required to login to check out, compare the invoice keys.
-    if ( ! wpinv_require_login_to_checkout() && isset( $_GET['invoice_key'] ) && sanitize_text_field( $_GET['invoice_key'] ) == $invoice->get_key() ) {
+    if (!wpinv_require_login_to_checkout() && isset($_GET['invoice_key']) && sanitize_text_field($_GET['invoice_key']) == $invoice->get_key()) {
         return true;
     }
 
     // Always enable for admins..
-    if ( wpinv_current_user_can( 'view_invoice', array( 'invoice' => $invoice ) ) || current_user_can( 'view_invoices', $invoice->get_id() ) ) { // Admin user
+    if (wpinv_current_user_can('view_invoice', array('invoice' => $invoice)) || current_user_can('view_invoices', $invoice->get_id())) { // Admin user
         return true;
     }
 
     // Else, ensure that this is their invoice.
-    if ( is_user_logged_in() && $invoice->get_user_id() == get_current_user_id() ) {
+    if (is_user_logged_in() && $invoice->get_user_id() == get_current_user_id()) {
         return true;
     }
 
-    return apply_filters( 'wpinv_current_user_can_view_invoice', false, $invoice );
+    return apply_filters('wpinv_current_user_can_view_invoice', false, $invoice);
 }
 
 /**
  * Checks if the current user cna view an invoice receipt.
  */
-function wpinv_can_view_receipt( $invoice ) {
-	return (bool) apply_filters( 'wpinv_can_view_receipt', wpinv_user_can_view_invoice( $invoice ), $invoice );
+function wpinv_can_view_receipt($invoice) {
+	return (bool) apply_filters('wpinv_can_view_receipt', wpinv_user_can_view_invoice($invoice), $invoice);
 }
 
 /**
@@ -77,16 +77,16 @@ 
  */
 function getpaid_get_invoice_post_types() {
     $post_types = array(
-        'wpi_quote'   => __( 'Quote', 'invoicing' ),
-        'wpi_invoice' => __( 'Invoice', 'invoicing' ),
+        'wpi_quote'   => __('Quote', 'invoicing'),
+        'wpi_invoice' => __('Invoice', 'invoicing'),
     );
 
     // Ensure the quotes addon is installed.
-    if ( ! defined( 'WPINV_QUOTES_VERSION' ) ) {
-        unset( $post_types['wpi_quote'] );
+    if (!defined('WPINV_QUOTES_VERSION')) {
+        unset($post_types['wpi_quote']);
     }
 
-    return apply_filters( 'getpaid_invoice_post_types', $post_types );
+    return apply_filters('getpaid_invoice_post_types', $post_types);
 }
 
 /**
@@ -95,8 +95,8 @@ 
  *
  * @param string $post_type The post type to check for.
  */
-function getpaid_is_invoice_post_type( $post_type ) {
-    return is_scalar( $post_type ) && ! empty( $post_type ) && array_key_exists( $post_type, getpaid_get_invoice_post_types() );
+function getpaid_is_invoice_post_type($post_type) {
+    return is_scalar($post_type) && !empty($post_type) && array_key_exists($post_type, getpaid_get_invoice_post_types());
 }
 
 /**
@@ -106,9 +106,9 @@ 
  * @param  bool  $wp_error       Whether to return false or WP_Error on failure.
  * @return int|WP_Error|WPInv_Invoice The value 0 or WP_Error on failure. The WPInv_Invoice object on success.
  */
-function wpinv_create_invoice( $data = array(), $deprecated = null, $wp_error = false ) {
+function wpinv_create_invoice($data = array(), $deprecated = null, $wp_error = false) {
     $data['invoice_id'] = 0;
-    return wpinv_insert_invoice( $data, $wp_error );
+    return wpinv_insert_invoice($data, $wp_error);
 }
 
 /**
@@ -118,35 +118,35 @@ 
  * @param  bool  $wp_error       Whether to return false or WP_Error on failure.
  * @return int|WP_Error|WPInv_Invoice The value 0 or WP_Error on failure. The WPInv_Invoice object on success.
  */
-function wpinv_update_invoice( $data = array(), $wp_error = false ) {
+function wpinv_update_invoice($data = array(), $wp_error = false) {
 
     // Backwards compatibility.
-    if ( ! empty( $data['ID'] ) ) {
+    if (!empty($data['ID'])) {
         $data['invoice_id'] = $data['ID'];
     }
 
     // Do we have an invoice id?
-    if ( empty( $data['invoice_id'] ) ) {
-        return $wp_error ? new WP_Error( 'invalid_invoice_id', __( 'Invalid invoice ID.', 'invoicing' ) ) : 0;
+    if (empty($data['invoice_id'])) {
+        return $wp_error ? new WP_Error('invalid_invoice_id', __('Invalid invoice ID.', 'invoicing')) : 0;
     }
 
     // Retrieve the invoice.
-    $invoice = wpinv_get_invoice( $data['invoice_id'] );
+    $invoice = wpinv_get_invoice($data['invoice_id']);
 
     // And abort if it does not exist.
-    if ( empty( $invoice ) ) {
-        return $wp_error ? new WP_Error( 'missing_invoice', __( 'Invoice not found.', 'invoicing' ) ) : 0;
+    if (empty($invoice)) {
+        return $wp_error ? new WP_Error('missing_invoice', __('Invoice not found.', 'invoicing')) : 0;
     }
 
     // Do not update totals for paid / refunded invoices.
-    if ( $invoice->is_paid() || $invoice->is_refunded() ) {
+    if ($invoice->is_paid() || $invoice->is_refunded()) {
 
-        if ( ! empty( $data['items'] ) || ! empty( $data['cart_details'] ) ) {
-            return $wp_error ? new WP_Error( 'paid_invoice', __( 'You can not update cart items for invoices that have already been paid for.', 'invoicing' ) ) : 0;
+        if (!empty($data['items']) || !empty($data['cart_details'])) {
+            return $wp_error ? new WP_Error('paid_invoice', __('You can not update cart items for invoices that have already been paid for.', 'invoicing')) : 0;
         }
 }
 
-    return wpinv_insert_invoice( $data, $wp_error );
+    return wpinv_insert_invoice($data, $wp_error);
 
 }
 
@@ -157,62 +157,62 @@ 
  * @param  bool  $wp_error       Whether to return false or WP_Error on failure.
  * @return int|WP_Error|WPInv_Invoice The value 0 or WP_Error on failure. The WPInv_Invoice object on success.
  */
-function wpinv_insert_invoice( $data = array(), $wp_error = false ) {
+function wpinv_insert_invoice($data = array(), $wp_error = false) {
 
     // Ensure that we have invoice data.
-    if ( empty( $data ) ) {
+    if (empty($data)) {
         return false;
     }
 
     // The invoice id will be provided when updating an invoice.
-    $data['invoice_id'] = ! empty( $data['invoice_id'] ) ? (int) $data['invoice_id'] : false;
+    $data['invoice_id'] = !empty($data['invoice_id']) ? (int) $data['invoice_id'] : false;
 
     // Retrieve the invoice.
-    $invoice = new WPInv_Invoice( $data['invoice_id'] );
+    $invoice = new WPInv_Invoice($data['invoice_id']);
 
     // Do we have an error?
-    if ( ! empty( $invoice->last_error ) ) {
-        return $wp_error ? new WP_Error( 'invalid_invoice_id', $invoice->last_error ) : 0;
+    if (!empty($invoice->last_error)) {
+        return $wp_error ? new WP_Error('invalid_invoice_id', $invoice->last_error) : 0;
     }
 
     // Backwards compatibility (billing address).
-    if ( ! empty( $data['user_info'] ) ) {
+    if (!empty($data['user_info'])) {
 
-        foreach ( $data['user_info'] as $key => $value ) {
+        foreach ($data['user_info'] as $key => $value) {
 
-            if ( $key == 'discounts' ) {
+            if ($key == 'discounts') {
                 $value = (array) $value;
-                $data['discount_code'] = empty( $value ) ? null : $value[0];
+                $data['discount_code'] = empty($value) ? null : $value[0];
             } else {
-                $data[ $key ] = $value;
+                $data[$key] = $value;
             }
 }
 }
 
     // Backwards compatibility.
-    if ( ! empty( $data['payment_details'] ) ) {
+    if (!empty($data['payment_details'])) {
 
-        foreach ( $data['payment_details'] as $key => $value ) {
-            $data[ $key ] = $value;
+        foreach ($data['payment_details'] as $key => $value) {
+            $data[$key] = $value;
         }
 }
 
     // Set up the owner of the invoice.
-    $user_id = ! empty( $data['user_id'] ) ? wpinv_clean( $data['user_id'] ) : get_current_user_id();
+    $user_id = !empty($data['user_id']) ? wpinv_clean($data['user_id']) : get_current_user_id();
 
     // Make sure the user exists.
-    if ( ! get_userdata( $user_id ) ) {
-        return $wp_error ? new WP_Error( 'wpinv_invalid_user', __( 'There is no user with that ID.', 'invoicing' ) ) : 0;
+    if (!get_userdata($user_id)) {
+        return $wp_error ? new WP_Error('wpinv_invalid_user', __('There is no user with that ID.', 'invoicing')) : 0;
     }
 
-    $address = wpinv_get_user_address( $user_id );
+    $address = wpinv_get_user_address($user_id);
 
-    foreach ( $address as $key => $value ) {
+    foreach ($address as $key => $value) {
 
-        if ( $value == '' ) {
-            $address[ $key ] = null;
+        if ($value == '') {
+            $address[$key] = null;
         } else {
-            $address[ $key ] = wpinv_clean( $value );
+            $address[$key] = wpinv_clean($value);
         }
 }
 
@@ -221,101 +221,101 @@ 
         array(
 
             // Basic info.
-            'template'          => isset( $data['template'] ) ? wpinv_clean( $data['template'] ) : null,
-            'email_cc'          => isset( $data['email_cc'] ) ? wpinv_clean( $data['email_cc'] ) : null,
-            'date_created'      => isset( $data['created_date'] ) ? wpinv_clean( $data['created_date'] ) : null,
-            'due_date'          => isset( $data['due_date'] ) ? wpinv_clean( $data['due_date'] ) : null,
-            'date_completed'    => isset( $data['date_completed'] ) ? wpinv_clean( $data['date_completed'] ) : null,
-            'number'            => isset( $data['number'] ) ? wpinv_clean( $data['number'] ) : null,
-            'key'               => isset( $data['key'] ) ? wpinv_clean( $data['key'] ) : null,
-            'status'            => isset( $data['status'] ) ? wpinv_clean( $data['status'] ) : null,
-            'post_type'         => isset( $data['post_type'] ) ? wpinv_clean( $data['post_type'] ) : null,
-            'user_ip'           => isset( $data['ip'] ) ? wpinv_clean( $data['ip'] ) : wpinv_get_ip(),
-            'parent_id'         => isset( $data['parent'] ) ? intval( $data['parent'] ) : null,
-            'mode'              => isset( $data['mode'] ) ? wpinv_clean( $data['mode'] ) : null,
-            'description'       => isset( $data['description'] ) ? wp_kses_post( $data['description'] ) : null,
+            'template'          => isset($data['template']) ? wpinv_clean($data['template']) : null,
+            'email_cc'          => isset($data['email_cc']) ? wpinv_clean($data['email_cc']) : null,
+            'date_created'      => isset($data['created_date']) ? wpinv_clean($data['created_date']) : null,
+            'due_date'          => isset($data['due_date']) ? wpinv_clean($data['due_date']) : null,
+            'date_completed'    => isset($data['date_completed']) ? wpinv_clean($data['date_completed']) : null,
+            'number'            => isset($data['number']) ? wpinv_clean($data['number']) : null,
+            'key'               => isset($data['key']) ? wpinv_clean($data['key']) : null,
+            'status'            => isset($data['status']) ? wpinv_clean($data['status']) : null,
+            'post_type'         => isset($data['post_type']) ? wpinv_clean($data['post_type']) : null,
+            'user_ip'           => isset($data['ip']) ? wpinv_clean($data['ip']) : wpinv_get_ip(),
+            'parent_id'         => isset($data['parent']) ? intval($data['parent']) : null,
+            'mode'              => isset($data['mode']) ? wpinv_clean($data['mode']) : null,
+            'description'       => isset($data['description']) ? wp_kses_post($data['description']) : null,
 
             // Payment info.
-            'disable_taxes'     => ! empty( $data['disable_taxes'] ),
-            'currency'          => isset( $data['currency'] ) ? wpinv_clean( $data['currency'] ) : wpinv_get_currency(),
-            'gateway'           => isset( $data['gateway'] ) ? wpinv_clean( $data['gateway'] ) : null,
-            'transaction_id'    => isset( $data['transaction_id'] ) ? wpinv_clean( $data['transaction_id'] ) : null,
-            'discount_code'     => isset( $data['discount_code'] ) ? wpinv_clean( $data['discount_code'] ) : null,
-            'payment_form'      => isset( $data['payment_form'] ) ? intval( $data['payment_form'] ) : null,
-            'submission_id'     => isset( $data['submission_id'] ) ? wpinv_clean( $data['submission_id'] ) : null,
-            'subscription_id'   => isset( $data['subscription_id'] ) ? wpinv_clean( $data['subscription_id'] ) : null,
-            'is_viewed'         => isset( $data['is_viewed'] ) ? wpinv_clean( $data['is_viewed'] ) : null,
-            'fees'              => isset( $data['fees'] ) ? wpinv_clean( $data['fees'] ) : null,
-            'discounts'         => isset( $data['discounts'] ) ? wpinv_clean( $data['discounts'] ) : null,
-            'taxes'             => isset( $data['taxes'] ) ? wpinv_clean( $data['taxes'] ) : null,
+            'disable_taxes'     => !empty($data['disable_taxes']),
+            'currency'          => isset($data['currency']) ? wpinv_clean($data['currency']) : wpinv_get_currency(),
+            'gateway'           => isset($data['gateway']) ? wpinv_clean($data['gateway']) : null,
+            'transaction_id'    => isset($data['transaction_id']) ? wpinv_clean($data['transaction_id']) : null,
+            'discount_code'     => isset($data['discount_code']) ? wpinv_clean($data['discount_code']) : null,
+            'payment_form'      => isset($data['payment_form']) ? intval($data['payment_form']) : null,
+            'submission_id'     => isset($data['submission_id']) ? wpinv_clean($data['submission_id']) : null,
+            'subscription_id'   => isset($data['subscription_id']) ? wpinv_clean($data['subscription_id']) : null,
+            'is_viewed'         => isset($data['is_viewed']) ? wpinv_clean($data['is_viewed']) : null,
+            'fees'              => isset($data['fees']) ? wpinv_clean($data['fees']) : null,
+            'discounts'         => isset($data['discounts']) ? wpinv_clean($data['discounts']) : null,
+            'taxes'             => isset($data['taxes']) ? wpinv_clean($data['taxes']) : null,
 
             // Billing details.
             'user_id'           => $data['user_id'],
-            'first_name'        => isset( $data['first_name'] ) ? wpinv_clean( $data['first_name'] ) : $address['first_name'],
-            'last_name'         => isset( $data['last_name'] ) ? wpinv_clean( $data['last_name'] ) : $address['last_name'],
-            'address'           => isset( $data['address'] ) ? wpinv_clean( $data['address'] ) : $address['address'],
-            'vat_number'        => isset( $data['vat_number'] ) ? wpinv_clean( $data['vat_number'] ) : $address['vat_number'],
-            'company'           => isset( $data['company'] ) ? wpinv_clean( $data['company'] ) : $address['company'],
-            'zip'               => isset( $data['zip'] ) ? wpinv_clean( $data['zip'] ) : $address['zip'],
-            'state'             => isset( $data['state'] ) ? wpinv_clean( $data['state'] ) : $address['state'],
-            'city'              => isset( $data['city'] ) ? wpinv_clean( $data['city'] ) : $address['city'],
-            'country'           => isset( $data['country'] ) ? wpinv_clean( $data['country'] ) : $address['country'],
-            'phone'             => isset( $data['phone'] ) ? wpinv_clean( $data['phone'] ) : $address['phone'],
-            'address_confirmed' => ! empty( $data['address_confirmed'] ),
+            'first_name'        => isset($data['first_name']) ? wpinv_clean($data['first_name']) : $address['first_name'],
+            'last_name'         => isset($data['last_name']) ? wpinv_clean($data['last_name']) : $address['last_name'],
+            'address'           => isset($data['address']) ? wpinv_clean($data['address']) : $address['address'],
+            'vat_number'        => isset($data['vat_number']) ? wpinv_clean($data['vat_number']) : $address['vat_number'],
+            'company'           => isset($data['company']) ? wpinv_clean($data['company']) : $address['company'],
+            'zip'               => isset($data['zip']) ? wpinv_clean($data['zip']) : $address['zip'],
+            'state'             => isset($data['state']) ? wpinv_clean($data['state']) : $address['state'],
+            'city'              => isset($data['city']) ? wpinv_clean($data['city']) : $address['city'],
+            'country'           => isset($data['country']) ? wpinv_clean($data['country']) : $address['country'],
+            'phone'             => isset($data['phone']) ? wpinv_clean($data['phone']) : $address['phone'],
+            'address_confirmed' => !empty($data['address_confirmed']),
 
         )
     );
 
     // Backwards compatibililty.
-    if ( ! empty( $data['cart_details'] ) && is_array( $data['cart_details'] ) ) {
+    if (!empty($data['cart_details']) && is_array($data['cart_details'])) {
         $data['items'] = array();
 
-        foreach ( $data['cart_details'] as $_item ) {
+        foreach ($data['cart_details'] as $_item) {
 
             // Ensure that we have an item id.
-            if ( empty( $_item['id'] ) ) {
+            if (empty($_item['id'])) {
                 continue;
             }
 
             // Retrieve the item.
-            $item = new GetPaid_Form_Item( $_item['id'] );
+            $item = new GetPaid_Form_Item($_item['id']);
 
             // Ensure that it is purchasable.
-            if ( ! $item->can_purchase() ) {
+            if (!$item->can_purchase()) {
                 continue;
             }
 
             // Set quantity.
-            if ( ! empty( $_item['quantity'] ) && is_numeric( $_item['quantity'] ) ) {
-                $item->set_quantity( $_item['quantity'] );
+            if (!empty($_item['quantity']) && is_numeric($_item['quantity'])) {
+                $item->set_quantity($_item['quantity']);
             }
 
             // Set price.
-            if ( isset( $_item['item_price'] ) ) {
-                $item->set_price( $_item['item_price'] );
+            if (isset($_item['item_price'])) {
+                $item->set_price($_item['item_price']);
             }
 
-            if ( isset( $_item['custom_price'] ) ) {
-                $item->set_price( $_item['custom_price'] );
+            if (isset($_item['custom_price'])) {
+                $item->set_price($_item['custom_price']);
             }
 
             // Set name.
-            if ( ! empty( $_item['name'] ) ) {
-                $item->set_name( $_item['name'] );
+            if (!empty($_item['name'])) {
+                $item->set_name($_item['name']);
             }
 
             // Set description.
-            if ( isset( $_item['description'] ) ) {
-                $item->set_custom_description( $_item['description'] );
+            if (isset($_item['description'])) {
+                $item->set_custom_description($_item['description']);
             }
 
             // Set meta.
-            if ( isset( $_item['meta'] ) && is_array( $_item['meta'] ) ) {
+            if (isset($_item['meta']) && is_array($_item['meta'])) {
 
-                $item->set_item_meta( $_item['meta'] );
+                $item->set_item_meta($_item['meta']);
 
-                if ( isset( $_item['meta']['description'] ) ) {
-                    $item->set_custom_description( $_item['meta']['description'] );
+                if (isset($_item['meta']['description'])) {
+                    $item->set_custom_description($_item['meta']['description']);
                 }
             }
 
@@ -325,14 +325,14 @@ 
     }
 
     // Add invoice items.
-    if ( ! empty( $data['items'] ) && is_array( $data['items'] ) ) {
+    if (!empty($data['items']) && is_array($data['items'])) {
 
-        $invoice->set_items( array() );
+        $invoice->set_items(array());
 
-        foreach ( $data['items'] as $item ) {
+        foreach ($data['items'] as $item) {
 
-            if ( is_object( $item ) && is_a( $item, 'GetPaid_Form_Item' ) && $item->can_purchase() ) {
-                $invoice->add_item( $item );
+            if (is_object($item) && is_a($item, 'GetPaid_Form_Item') && $item->can_purchase()) {
+                $invoice->add_item($item);
             }
 }
 }
@@ -341,30 +341,30 @@ 
     $invoice->recalculate_total();
     $invoice->save();
 
-    if ( ! $invoice->get_id() ) {
-        return $wp_error ? new WP_Error( 'wpinv_insert_invoice_error', __( 'An error occured when saving your invoice.', 'invoicing' ) ) : 0;
+    if (!$invoice->get_id()) {
+        return $wp_error ? new WP_Error('wpinv_insert_invoice_error', __('An error occured when saving your invoice.', 'invoicing')) : 0;
     }
 
     // Add private note.
-    if ( ! empty( $data['private_note'] ) ) {
-        $invoice->add_note( $data['private_note'] );
+    if (!empty($data['private_note'])) {
+        $invoice->add_note($data['private_note']);
     }
 
     // User notes.
-    if ( ! empty( $data['user_note'] ) ) {
-        $invoice->add_note( $data['user_note'], true );
+    if (!empty($data['user_note'])) {
+        $invoice->add_note($data['user_note'], true);
     }
 
     // Created via.
-    if ( isset( $data['created_via'] ) ) {
-        update_post_meta( $invoice->get_id(), 'wpinv_created_via', $data['created_via'] );
+    if (isset($data['created_via'])) {
+        update_post_meta($invoice->get_id(), 'wpinv_created_via', $data['created_via']);
     }
 
     // Backwards compatiblity.
-    if ( $invoice->is_quote() ) {
+    if ($invoice->is_quote()) {
 
-        if ( isset( $data['valid_until'] ) ) {
-            update_post_meta( $invoice->get_id(), 'wpinv_quote_valid_until', $data['valid_until'] );
+        if (isset($data['valid_until'])) {
+            update_post_meta($invoice->get_id(), 'wpinv_quote_valid_until', $data['valid_until']);
         }
 }
 
@@ -378,20 +378,20 @@ 
  * @param $bool $deprecated
  * @return WPInv_Invoice|null
  */
-function wpinv_get_invoice( $invoice = 0, $deprecated = false ) {
+function wpinv_get_invoice($invoice = 0, $deprecated = false) {
 
     // If we are retrieving the invoice from the cart...
-    if ( $deprecated && empty( $invoice ) ) {
+    if ($deprecated && empty($invoice)) {
         $invoice = (int) getpaid_get_current_invoice_id();
     }
 
     // Retrieve the invoice.
-    if ( ! is_a( $invoice, 'WPInv_Invoice' ) ) {
-        $invoice = new WPInv_Invoice( $invoice );
+    if (!is_a($invoice, 'WPInv_Invoice')) {
+        $invoice = new WPInv_Invoice($invoice);
     }
 
     // Check if it exists.
-    if ( $invoice->exists() ) {
+    if ($invoice->exists()) {
         return $invoice;
     }
 
@@ -404,15 +404,15 @@ 
  * @param array $args Args to search for.
  * @return WPInv_Invoice[]|int[]|object
  */
-function wpinv_get_invoices( $args ) {
+function wpinv_get_invoices($args) {
 
     // Prepare args.
     $args = wp_parse_args(
         $args,
         array(
-            'status' => array_keys( wpinv_get_invoice_statuses() ),
+            'status' => array_keys(wpinv_get_invoice_statuses()),
             'type'   => 'wpi_invoice',
-            'limit'  => get_option( 'posts_per_page' ),
+            'limit'  => get_option('posts_per_page'),
             'return' => 'objects',
         )
     );
@@ -430,24 +430,24 @@ 
         'post__in'       => 'include',
     );
 
-    foreach ( $map_legacy as $to => $from ) {
-        if ( isset( $args[ $from ] ) ) {
-            $args[ $to ] = $args[ $from ];
-            unset( $args[ $from ] );
+    foreach ($map_legacy as $to => $from) {
+        if (isset($args[$from])) {
+            $args[$to] = $args[$from];
+            unset($args[$from]);
         }
     }
 
     // Backwards compatibility.
-    if ( ! empty( $args['email'] ) && empty( $args['user'] ) ) {
+    if (!empty($args['email']) && empty($args['user'])) {
         $args['user'] = $args['email'];
-        unset( $args['email'] );
+        unset($args['email']);
     }
 
     // Handle cases where the user is set as an email.
-    if ( ! empty( $args['author'] ) && is_email( $args['author'] ) ) {
-        $user = get_user_by( 'email', $args['user'] );
+    if (!empty($args['author']) && is_email($args['author'])) {
+        $user = get_user_by('email', $args['user']);
 
-        if ( $user ) {
+        if ($user) {
             $args['author'] = $user->user_email;
         }
 }
@@ -457,31 +457,31 @@ 
 
     // Show all posts.
     $paginate = true;
-    if ( isset( $args['paginate'] ) ) {
+    if (isset($args['paginate'])) {
 
         $paginate = $args['paginate'];
-        $args['no_found_rows'] = empty( $args['paginate'] );
-        unset( $args['paginate'] );
+        $args['no_found_rows'] = empty($args['paginate']);
+        unset($args['paginate']);
 
     }
 
     // Whether to return objects or fields.
     $return = $args['return'];
-    unset( $args['return'] );
+    unset($args['return']);
 
     // Get invoices.
-    $invoices = new WP_Query( apply_filters( 'wpinv_get_invoices_args', $args ) );
+    $invoices = new WP_Query(apply_filters('wpinv_get_invoices_args', $args));
 
     // Prepare the results.
-    if ( 'objects' === $return ) {
-        $results = array_map( 'wpinv_get_invoice', $invoices->posts );
-    } elseif ( 'self' === $return ) {
+    if ('objects' === $return) {
+        $results = array_map('wpinv_get_invoice', $invoices->posts);
+    } elseif ('self' === $return) {
         return $invoices;
     } else {
         $results = $invoices->posts;
     }
 
-    if ( $paginate ) {
+    if ($paginate) {
         return (object) array(
             'invoices'      => $results,
             'total'         => $invoices->found_posts,
@@ -499,8 +499,8 @@ 
  * @param string $transaction_id The transaction id to check.
  * @return int Invoice id on success or 0 on failure
  */
-function wpinv_get_id_by_transaction_id( $transaction_id ) {
-    return WPInv_Invoice::get_invoice_id_by_field( $transaction_id, 'transaction_id' );
+function wpinv_get_id_by_transaction_id($transaction_id) {
+    return WPInv_Invoice::get_invoice_id_by_field($transaction_id, 'transaction_id');
 }
 
 /**
@@ -509,8 +509,8 @@ 
  * @param string $invoice_number The invoice number to check.
  * @return int Invoice id on success or 0 on failure
  */
-function wpinv_get_id_by_invoice_number( $invoice_number ) {
-    return WPInv_Invoice::get_invoice_id_by_field( $invoice_number, 'number' );
+function wpinv_get_id_by_invoice_number($invoice_number) {
+    return WPInv_Invoice::get_invoice_id_by_field($invoice_number, 'number');
 }
 
 /**
@@ -519,8 +519,8 @@ 
  * @param string $invoice_key The invoice key to check.
  * @return int Invoice id on success or 0 on failure
  */
-function wpinv_get_invoice_id_by_key( $invoice_key ) {
-    return WPInv_Invoice::get_invoice_id_by_field( $invoice_key, 'key' );
+function wpinv_get_invoice_id_by_key($invoice_key) {
+    return WPInv_Invoice::get_invoice_id_by_field($invoice_key, 'key');
 }
 
 /**
@@ -530,19 +530,19 @@ 
  * @param string $type Optionally filter by type i.e customer|system
  * @return array|null
  */
-function wpinv_get_invoice_notes( $invoice = 0, $type = '' ) {
+function wpinv_get_invoice_notes($invoice = 0, $type = '') {
 
     // Prepare the invoice.
-    $invoice = wpinv_get_invoice( $invoice );
-    if ( empty( $invoice ) ) {
+    $invoice = wpinv_get_invoice($invoice);
+    if (empty($invoice)) {
         return null;
     }
 
     // Fetch notes.
-    $notes = getpaid_notes()->get_invoice_notes( $invoice->get_id(), $type );
+    $notes = getpaid_notes()->get_invoice_notes($invoice->get_id(), $type);
 
     // Filter the notes.
-    return apply_filters( 'wpinv_invoice_notes', $notes, $invoice->get_id(), $type );
+    return apply_filters('wpinv_invoice_notes', $notes, $invoice->get_id(), $type);
 }
 
 /**
@@ -550,10 +550,10 @@ 
  *
  * @param string $post_type
  */
-function wpinv_get_user_invoices_columns( $post_type = 'wpi_invoice' ) {
+function wpinv_get_user_invoices_columns($post_type = 'wpi_invoice') {
 
-    $label   = getpaid_get_post_type_label( $post_type, false );
-    $label   = empty( $label ) ? __( 'Invoice', 'invoicing' ) : sanitize_text_field( $label );
+    $label   = getpaid_get_post_type_label($post_type, false);
+    $label   = empty($label) ? __('Invoice', 'invoicing') : sanitize_text_field($label);
     $columns = array(
 
 		'invoice-number'  => array(
@@ -562,22 +562,22 @@ 
 		),
 
 		'created-date'    => array(
-			'title' => __( 'Created Date', 'invoicing' ),
+			'title' => __('Created Date', 'invoicing'),
 			'class' => 'text-left',
 		),
 
 		'payment-date'    => array(
-			'title' => __( 'Payment Date', 'invoicing' ),
+			'title' => __('Payment Date', 'invoicing'),
 			'class' => 'text-left',
 		),
 
 		'invoice-status'  => array(
-			'title' => __( 'Status', 'invoicing' ),
+			'title' => __('Status', 'invoicing'),
 			'class' => 'text-center',
 		),
 
 		'invoice-total'   => array(
-			'title' => __( 'Total', 'invoicing' ),
+			'title' => __('Total', 'invoicing'),
 			'class' => 'text-right',
 		),
 
@@ -588,7 +588,7 @@ 
 
 	);
 
-    return apply_filters( 'wpinv_user_invoices_columns', $columns, $post_type );
+    return apply_filters('wpinv_user_invoices_columns', $columns, $post_type);
 }
 
 /**
@@ -598,59 +598,59 @@ 
 
     // Find the invoice.
     $invoice_id = getpaid_get_current_invoice_id();
-    $invoice = new WPInv_Invoice( $invoice_id );
+    $invoice = new WPInv_Invoice($invoice_id);
 
     // Abort if non was found.
-    if ( empty( $invoice_id ) || $invoice->is_draft() ) {
+    if (empty($invoice_id) || $invoice->is_draft()) {
 
         return aui()->alert(
             array(
                 'type'    => 'warning',
-                'content' => __( 'We could not find your invoice', 'invoicing' ),
+                'content' => __('We could not find your invoice', 'invoicing'),
             )
         );
 
     }
 
     // Can the user view this invoice?
-    if ( ! wpinv_can_view_receipt( $invoice_id ) ) {
+    if (!wpinv_can_view_receipt($invoice_id)) {
 
         return aui()->alert(
             array(
                 'type'    => 'warning',
-                'content' => __( 'You are not allowed to view this receipt', 'invoicing' ),
+                'content' => __('You are not allowed to view this receipt', 'invoicing'),
             )
         );
 
     }
 
     // Load the template.
-    return wpinv_get_template_html( 'invoice-receipt.php', compact( 'invoice' ) );
+    return wpinv_get_template_html('invoice-receipt.php', compact('invoice'));
 
 }
 
 /**
  * Displays the invoice history.
  */
-function getpaid_invoice_history( $user_id = 0, $post_type = 'wpi_invoice' ) {
+function getpaid_invoice_history($user_id = 0, $post_type = 'wpi_invoice') {
 
     // Ensure that we have a user id.
-    if ( empty( $user_id ) || ! is_numeric( $user_id ) ) {
+    if (empty($user_id) || !is_numeric($user_id)) {
         $user_id = get_current_user_id();
     }
 
-    $label = getpaid_get_post_type_label( $post_type );
-    $label = empty( $label ) ? __( 'Invoices', 'invoicing' ) : sanitize_text_field( $label );
+    $label = getpaid_get_post_type_label($post_type);
+    $label = empty($label) ? __('Invoices', 'invoicing') : sanitize_text_field($label);
 
     // View user id.
-    if ( empty( $user_id ) ) {
+    if (empty($user_id)) {
 
         return aui()->alert(
             array(
                 'type'    => 'warning',
                 'content' => sprintf(
-                    __( 'You must be logged in to view your %s.', 'invoicing' ),
-                    strtolower( $label )
+                    __('You must be logged in to view your %s.', 'invoicing'),
+                    strtolower($label)
                 ),
             )
         );
@@ -660,22 +660,22 @@ 
     // Fetch invoices.
     $invoices = wpinv_get_invoices(
         array(
-            'page'     => ( get_query_var( 'paged' ) ) ? absint( get_query_var( 'paged' ) ) : 1,
+            'page'     => (get_query_var('paged')) ? absint(get_query_var('paged')) : 1,
             'user'     => $user_id,
             'paginate' => true,
             'type'     => $post_type,
-            'status'   => array_keys( wpinv_get_invoice_statuses( false, false, $post_type ) ),
+            'status'   => array_keys(wpinv_get_invoice_statuses(false, false, $post_type)),
         )
     );
 
-    if ( empty( $invoices->total ) ) {
+    if (empty($invoices->total)) {
 
         return aui()->alert(
             array(
                 'type'    => 'info',
                 'content' => sprintf(
-                    __( 'No %s found.', 'invoicing' ),
-                    strtolower( $label )
+                    __('No %s found.', 'invoicing'),
+                    strtolower($label)
                 ),
             )
         );
@@ -683,38 +683,38 @@ 
     }
 
     // Load the template.
-    return wpinv_get_template_html( 'invoice-history.php', compact( 'invoices', 'post_type' ) );
+    return wpinv_get_template_html('invoice-history.php', compact('invoices', 'post_type'));
 
 }
 
 /**
  * Formats an invoice number given an invoice type.
  */
-function wpinv_format_invoice_number( $number, $type = '' ) {
+function wpinv_format_invoice_number($number, $type = '') {
 
     // Allow other plugins to overide this.
-    $check = apply_filters( 'wpinv_pre_format_invoice_number', null, $number, $type );
-    if ( null !== $check ) {
+    $check = apply_filters('wpinv_pre_format_invoice_number', null, $number, $type);
+    if (null !== $check) {
         return $check;
     }
 
     // Ensure that we have a numeric number.
-    if ( ! is_numeric( $number ) ) {
+    if (!is_numeric($number)) {
         return $number;
     }
 
     // Format the number.
-    $padd             = absint( (int) wpinv_get_option( 'invoice_number_padd', 5 ) );
-    $prefix           = sanitize_text_field( (string) wpinv_get_option( 'invoice_number_prefix', 'INV-' ) );
-    $prefix           = sanitize_text_field( apply_filters( 'getpaid_invoice_type_prefix', $prefix, $type ) );
-    $postfix          = sanitize_text_field( (string) wpinv_get_option( 'invoice_number_postfix' ) );
-    $postfix          = sanitize_text_field( apply_filters( 'getpaid_invoice_type_postfix', $postfix, $type ) );
-    $formatted_number = zeroise( absint( $number ), $padd );
+    $padd             = absint((int) wpinv_get_option('invoice_number_padd', 5));
+    $prefix           = sanitize_text_field((string) wpinv_get_option('invoice_number_prefix', 'INV-'));
+    $prefix           = sanitize_text_field(apply_filters('getpaid_invoice_type_prefix', $prefix, $type));
+    $postfix          = sanitize_text_field((string) wpinv_get_option('invoice_number_postfix'));
+    $postfix          = sanitize_text_field(apply_filters('getpaid_invoice_type_postfix', $postfix, $type));
+    $formatted_number = zeroise(absint($number), $padd);
 
     // Add the prefix and post fix.
     $formatted_number = $prefix . $formatted_number . $postfix;
 
-    return apply_filters( 'wpinv_format_invoice_number', $formatted_number, $number, $prefix, $postfix, $padd );
+    return apply_filters('wpinv_format_invoice_number', $formatted_number, $number, $prefix, $postfix, $padd);
 }
 
 /**
@@ -723,58 +723,58 @@ 
  * @param string $type.
  * @return int|null|bool
  */
-function wpinv_get_next_invoice_number( $type = '' ) {
+function wpinv_get_next_invoice_number($type = '') {
 
     // Allow plugins to overide this.
-    $check = apply_filters( 'wpinv_get_pre_next_invoice_number', null, $type );
-    if ( null !== $check ) {
+    $check = apply_filters('wpinv_get_pre_next_invoice_number', null, $type);
+    if (null !== $check) {
         return $check;
     }
 
     // Ensure sequential invoice numbers is active.
-    if ( ! wpinv_sequential_number_active() ) {
+    if (!wpinv_sequential_number_active()) {
         return false;
     }
 
     // Retrieve the current number and the start number.
-    $number = (int) get_option( 'wpinv_last_invoice_number', 0 );
-    $start  = absint( (int) wpinv_get_option( 'invoice_sequence_start', 1 ) );
+    $number = (int) get_option('wpinv_last_invoice_number', 0);
+    $start  = absint((int) wpinv_get_option('invoice_sequence_start', 1));
 
     // Ensure that we are starting at a positive integer.
-    $start  = max( $start, 1 );
+    $start  = max($start, 1);
 
     // If this is the first invoice, use the start number.
-    $number = max( $start, $number );
+    $number = max($start, $number);
 
     // Format the invoice number.
-    $formatted_number = wpinv_format_invoice_number( $number, $type );
+    $formatted_number = wpinv_format_invoice_number($number, $type);
 
     // Ensure that this number is unique.
-    $invoice_id = WPInv_Invoice::get_invoice_id_by_field( $formatted_number, 'number' );
+    $invoice_id = WPInv_Invoice::get_invoice_id_by_field($formatted_number, 'number');
 
     // We found a match. Nice.
-    if ( empty( $invoice_id ) ) {
-        update_option( 'wpinv_last_invoice_number', $number );
-        return apply_filters( 'wpinv_get_next_invoice_number', $number );
+    if (empty($invoice_id)) {
+        update_option('wpinv_last_invoice_number', $number);
+        return apply_filters('wpinv_get_next_invoice_number', $number);
     }
 
-    update_option( 'wpinv_last_invoice_number', $number + 1 );
-    return wpinv_get_next_invoice_number( $type );
+    update_option('wpinv_last_invoice_number', $number + 1);
+    return wpinv_get_next_invoice_number($type);
 
 }
 
 /**
  * The prefix used for invoice paths.
  */
-function wpinv_post_name_prefix( $post_type = 'wpi_invoice' ) {
-    return apply_filters( 'wpinv_post_name_prefix', 'inv-', $post_type );
+function wpinv_post_name_prefix($post_type = 'wpi_invoice') {
+    return apply_filters('wpinv_post_name_prefix', 'inv-', $post_type);
 }
 
-function wpinv_generate_post_name( $post_ID ) {
-    $prefix = wpinv_post_name_prefix( get_post_type( $post_ID ) );
-    $post_name = sanitize_title( $prefix . $post_ID );
+function wpinv_generate_post_name($post_ID) {
+    $prefix = wpinv_post_name_prefix(get_post_type($post_ID));
+    $post_name = sanitize_title($prefix . $post_ID);
 
-    return apply_filters( 'wpinv_generate_post_name', $post_name, $post_ID, $prefix );
+    return apply_filters('wpinv_generate_post_name', $post_name, $post_ID, $prefix);
 }
 
 /**
@@ -782,8 +782,8 @@ 
  *
  * @param int|string|object|WPInv_Invoice|WPInv_Legacy_Invoice|WP_Post $invoice Invoice id, key, transaction id, number or object.
  */
-function wpinv_is_invoice_viewed( $invoice ) {
-    $invoice = new WPInv_Invoice( $invoice );
+function wpinv_is_invoice_viewed($invoice) {
+    $invoice = new WPInv_Invoice($invoice);
     return (bool) $invoice->get_is_viewed();
 }
 
@@ -792,17 +792,17 @@ 
  *
  * @param int|string|object|WPInv_Invoice|WPInv_Legacy_Invoice|WP_Post $invoice Invoice id, key, transaction id, number or object.
  */
-function getpaid_maybe_mark_invoice_as_viewed( $invoice ) {
-    $invoice = new WPInv_Invoice( $invoice );
+function getpaid_maybe_mark_invoice_as_viewed($invoice) {
+    $invoice = new WPInv_Invoice($invoice);
 
-    if ( get_current_user_id() == $invoice->get_user_id() && ! $invoice->get_is_viewed() ) {
-        $invoice->set_is_viewed( true );
+    if (get_current_user_id() == $invoice->get_user_id() && !$invoice->get_is_viewed()) {
+        $invoice->set_is_viewed(true);
         $invoice->save();
     }
 
 }
-add_action( 'wpinv_invoice_print_before_display', 'getpaid_maybe_mark_invoice_as_viewed' );
-add_action( 'wpinv_before_receipt', 'getpaid_maybe_mark_invoice_as_viewed' );
+add_action('wpinv_invoice_print_before_display', 'getpaid_maybe_mark_invoice_as_viewed');
+add_action('wpinv_before_receipt', 'getpaid_maybe_mark_invoice_as_viewed');
 
 /**
  * Processes an invoice refund.
@@ -811,26 +811,26 @@ 
  * @param array $status_transition
  * @todo: descrease customer/store earnings
  */
-function getpaid_maybe_process_refund( $invoice, $status_transition ) {
+function getpaid_maybe_process_refund($invoice, $status_transition) {
 
-    if ( empty( $status_transition['from'] ) || ! in_array( $status_transition['from'], array( 'publish', 'wpi-processing', 'wpi-renewal' ) ) ) {
+    if (empty($status_transition['from']) || !in_array($status_transition['from'], array('publish', 'wpi-processing', 'wpi-renewal'))) {
         return;
     }
 
     $discount_code = $invoice->get_discount_code();
-    if ( ! empty( $discount_code ) ) {
-        $discount = wpinv_get_discount_obj( $discount_code );
+    if (!empty($discount_code)) {
+        $discount = wpinv_get_discount_obj($discount_code);
 
-        if ( $discount->exists() ) {
+        if ($discount->exists()) {
             $discount->increase_usage( -1 );
         }
 }
 
-    do_action( 'wpinv_pre_refund_invoice', $invoice, $invoice->get_id() );
-    do_action( 'wpinv_refund_invoice', $invoice, $invoice->get_id() );
-    do_action( 'wpinv_post_refund_invoice', $invoice, $invoice->get_id() );
+    do_action('wpinv_pre_refund_invoice', $invoice, $invoice->get_id());
+    do_action('wpinv_refund_invoice', $invoice, $invoice->get_id());
+    do_action('wpinv_post_refund_invoice', $invoice, $invoice->get_id());
 }
-add_action( 'getpaid_invoice_status_wpi-refunded', 'getpaid_maybe_process_refund', 10, 2 );
+add_action('getpaid_invoice_status_wpi-refunded', 'getpaid_maybe_process_refund', 10, 2);
 
 
 /**
@@ -838,47 +838,47 @@ 
  *
  * @param int $invoice_id
  */
-function getpaid_process_invoice_payment( $invoice_id ) {
+function getpaid_process_invoice_payment($invoice_id) {
 
     // Fetch the invoice.
-    $invoice = new WPInv_Invoice( $invoice_id );
+    $invoice = new WPInv_Invoice($invoice_id);
 
     // We only want to do this once.
-    if ( 1 == get_post_meta( $invoice->get_id(), 'wpinv_processed_payment', true ) ) {
+    if (1 == get_post_meta($invoice->get_id(), 'wpinv_processed_payment', true)) {
         return;
     }
 
-    update_post_meta( $invoice->get_id(), 'wpinv_processed_payment', 1 );
+    update_post_meta($invoice->get_id(), 'wpinv_processed_payment', 1);
 
     // Fires when processing a payment.
-    do_action( 'getpaid_process_payment', $invoice );
+    do_action('getpaid_process_payment', $invoice);
 
     // Fire an action for each invoice item.
-    foreach ( $invoice->get_items() as $item ) {
-        do_action( 'getpaid_process_item_payment', $item, $invoice );
+    foreach ($invoice->get_items() as $item) {
+        do_action('getpaid_process_item_payment', $item, $invoice);
     }
 
     // Increase discount usage.
     $discount_code = $invoice->get_discount_code();
-    if ( ! empty( $discount_code ) && ! $invoice->is_renewal() ) {
-        $discount = wpinv_get_discount_obj( $discount_code );
+    if (!empty($discount_code) && !$invoice->is_renewal()) {
+        $discount = wpinv_get_discount_obj($discount_code);
 
-        if ( $discount->exists() ) {
+        if ($discount->exists()) {
             $discount->increase_usage();
         }
 }
 
     // Record reverse vat.
-    if ( 'invoice' === $invoice->get_type() && wpinv_use_taxes() && ! $invoice->get_disable_taxes() ) {
+    if ('invoice' === $invoice->get_type() && wpinv_use_taxes() && !$invoice->get_disable_taxes()) {
 
         $taxes = $invoice->get_total_tax();
-        if ( empty( $taxes ) && GetPaid_Payment_Form_Submission_Taxes::is_eu_transaction( $invoice->get_country() ) ) {
-            $invoice->add_note( __( 'VAT was reverse charged', 'invoicing' ), false, false, true );
+        if (empty($taxes) && GetPaid_Payment_Form_Submission_Taxes::is_eu_transaction($invoice->get_country())) {
+            $invoice->add_note(__('VAT was reverse charged', 'invoicing'), false, false, true);
         }
 }
 
 }
-add_action( 'getpaid_invoice_payment_status_changed', 'getpaid_process_invoice_payment' );
+add_action('getpaid_invoice_payment_status_changed', 'getpaid_process_invoice_payment');
 
 /**
  * Returns an array of invoice item columns
@@ -886,13 +886,13 @@ 
  * @param int|WPInv_Invoice $invoice
  * @return array
  */
-function getpaid_invoice_item_columns( $invoice ) {
+function getpaid_invoice_item_columns($invoice) {
 
     // Prepare the invoice.
-    $invoice = new WPInv_Invoice( $invoice );
+    $invoice = new WPInv_Invoice($invoice);
 
     // Abort if there is no invoice.
-    if ( 0 == $invoice->get_id() ) {
+    if (0 == $invoice->get_id()) {
         return array();
     }
 
@@ -900,52 +900,52 @@ 
     $columns = apply_filters(
         'getpaid_invoice_item_columns',
         array(
-            'name'     => __( 'Item', 'invoicing' ),
-            'price'    => __( 'Price', 'invoicing' ),
-            'tax_rate' => __( 'Tax Rate', 'invoicing' ),
-            'quantity' => __( 'Quantity', 'invoicing' ),
-            'subtotal' => __( 'Item Subtotal', 'invoicing' ),
+            'name'     => __('Item', 'invoicing'),
+            'price'    => __('Price', 'invoicing'),
+            'tax_rate' => __('Tax Rate', 'invoicing'),
+            'quantity' => __('Quantity', 'invoicing'),
+            'subtotal' => __('Item Subtotal', 'invoicing'),
         ),
         $invoice
     );
 
     // Quantities.
-    if ( isset( $columns['quantity'] ) ) {
+    if (isset($columns['quantity'])) {
 
-        if ( 'hours' == $invoice->get_template() ) {
-            $columns['quantity'] = __( 'Hours', 'invoicing' );
+        if ('hours' == $invoice->get_template()) {
+            $columns['quantity'] = __('Hours', 'invoicing');
         }
 
-        if ( ! wpinv_item_quantities_enabled() || 'amount' == $invoice->get_template() ) {
-            unset( $columns['quantity'] );
+        if (!wpinv_item_quantities_enabled() || 'amount' == $invoice->get_template()) {
+            unset($columns['quantity']);
         }
 }
 
     // Price.
-    if ( isset( $columns['price'] ) ) {
+    if (isset($columns['price'])) {
 
-        if ( 'amount' == $invoice->get_template() ) {
-            $columns['price'] = __( 'Amount', 'invoicing' );
+        if ('amount' == $invoice->get_template()) {
+            $columns['price'] = __('Amount', 'invoicing');
         }
 
-        if ( 'hours' == $invoice->get_template() ) {
-            $columns['price'] = __( 'Rate', 'invoicing' );
+        if ('hours' == $invoice->get_template()) {
+            $columns['price'] = __('Rate', 'invoicing');
         }
 }
 
     // Sub total.
-    if ( isset( $columns['subtotal'] ) ) {
+    if (isset($columns['subtotal'])) {
 
-        if ( 'amount' == $invoice->get_template() ) {
-            unset( $columns['subtotal'] );
+        if ('amount' == $invoice->get_template()) {
+            unset($columns['subtotal']);
         }
 }
 
     // Tax rates.
-    if ( isset( $columns['tax_rate'] ) ) {
+    if (isset($columns['tax_rate'])) {
 
-        if ( 0 == $invoice->get_tax() ) {
-            unset( $columns['tax_rate'] );
+        if (0 == $invoice->get_tax()) {
+            unset($columns['tax_rate']);
         }
 }
 
@@ -958,53 +958,53 @@ 
  * @param int|WPInv_Invoice $invoice
  * @return array
  */
-function getpaid_invoice_totals_rows( $invoice ) {
+function getpaid_invoice_totals_rows($invoice) {
 
     // Prepare the invoice.
-    $invoice = new WPInv_Invoice( $invoice );
+    $invoice = new WPInv_Invoice($invoice);
 
     // Abort if there is no invoice.
-    if ( 0 == $invoice->get_id() ) {
+    if (0 == $invoice->get_id()) {
         return array();
     }
 
     $totals = apply_filters(
         'getpaid_invoice_totals_rows',
         array(
-            'subtotal' => __( 'Subtotal', 'invoicing' ),
-            'shipping' => __( 'Shipping', 'invoicing' ),
-            'tax'      => __( 'Tax', 'invoicing' ),
-            'fee'      => __( 'Fee', 'invoicing' ),
-            'discount' => __( 'Discount', 'invoicing' ),
-            'total'    => __( 'Total', 'invoicing' ),
+            'subtotal' => __('Subtotal', 'invoicing'),
+            'shipping' => __('Shipping', 'invoicing'),
+            'tax'      => __('Tax', 'invoicing'),
+            'fee'      => __('Fee', 'invoicing'),
+            'discount' => __('Discount', 'invoicing'),
+            'total'    => __('Total', 'invoicing'),
         ),
         $invoice
     );
 
-    if ( ! $invoice->has_shipping() ) {
-        unset( $totals['shipping'] );
+    if (!$invoice->has_shipping()) {
+        unset($totals['shipping']);
     }
 
-    if ( ( $invoice->get_disable_taxes() || ! wpinv_use_taxes() ) && isset( $totals['tax'] ) ) {
-        unset( $totals['tax'] );
+    if (($invoice->get_disable_taxes() || !wpinv_use_taxes()) && isset($totals['tax'])) {
+        unset($totals['tax']);
     }
 
     // If we have taxes, display individual taxes.
-    if ( isset( $totals['tax'] ) && wpinv_display_individual_tax_rates() ) {
+    if (isset($totals['tax']) && wpinv_display_individual_tax_rates()) {
 
         $new_totals = array();
-        foreach ( $totals as $key => $label ) {
+        foreach ($totals as $key => $label) {
 
-            if ( 'tax' !== $key ) {
-                $new_totals[ $key ] = $label;
+            if ('tax' !== $key) {
+                $new_totals[$key] = $label;
                 continue;
             }
 
-            $taxes = array_keys( $invoice->get_taxes() );
-            if ( ! empty( $taxes ) ) {
+            $taxes = array_keys($invoice->get_taxes());
+            if (!empty($taxes)) {
 
-                foreach ( $taxes as $tax ) {
-                    $new_totals[ 'tax__' . $tax ] = $tax;
+                foreach ($taxes as $tax) {
+                    $new_totals['tax__' . $tax] = $tax;
                 }
             }
         }
@@ -1012,12 +1012,12 @@ 
         $totals = $new_totals;
     }
 
-    if ( 0 == $invoice->get_total_fees() && isset( $totals['fee'] ) ) {
-        unset( $totals['fee'] );
+    if (0 == $invoice->get_total_fees() && isset($totals['fee'])) {
+        unset($totals['fee']);
     }
 
-    if ( 0 == $invoice->get_total_discount() && isset( $totals['discount'] ) ) {
-        unset( $totals['discount'] );
+    if (0 == $invoice->get_total_discount() && isset($totals['discount'])) {
+        unset($totals['discount']);
     }
 
     return $totals;
@@ -1028,47 +1028,47 @@ 
  *
  * @param WPInv_Invoice $invoice
  */
-function getpaid_new_invoice( $invoice ) {
+function getpaid_new_invoice($invoice) {
 
-    if ( ! $invoice->get_status() ) {
+    if (!$invoice->get_status()) {
         return;
     }
 
     // Add an invoice created note.
     $invoice->add_note(
         sprintf(
-            __( '%1$s created with the status "%2$s".', 'invoicing' ),
-            ucfirst( $invoice->get_invoice_quote_type() ),
-            wpinv_status_nicename( $invoice->get_status(), $invoice )
+            __('%1$s created with the status "%2$s".', 'invoicing'),
+            ucfirst($invoice->get_invoice_quote_type()),
+            wpinv_status_nicename($invoice->get_status(), $invoice)
         )
     );
 
 }
-add_action( 'getpaid_new_invoice', 'getpaid_new_invoice' );
+add_action('getpaid_new_invoice', 'getpaid_new_invoice');
 
 /**
  * This function updates invoice caches.
  *
  * @param WPInv_Invoice $invoice
  */
-function getpaid_update_invoice_caches( $invoice ) {
+function getpaid_update_invoice_caches($invoice) {
 
     // Cache invoice number.
-    wp_cache_set( $invoice->get_number(), $invoice->get_id(), 'getpaid_invoice_numbers_to_invoice_ids' );
+    wp_cache_set($invoice->get_number(), $invoice->get_id(), 'getpaid_invoice_numbers_to_invoice_ids');
 
     // Cache invoice key.
-    wp_cache_set( $invoice->get_key(), $invoice->get_id(), 'getpaid_invoice_keys_to_invoice_ids' );
+    wp_cache_set($invoice->get_key(), $invoice->get_id(), 'getpaid_invoice_keys_to_invoice_ids');
 
     // (Maybe) cache transaction id.
     $transaction_id = $invoice->get_transaction_id();
 
-    if ( ! empty( $transaction_id ) ) {
-        wp_cache_set( $transaction_id, $invoice->get_id(), 'getpaid_invoice_transaction_ids_to_invoice_ids' );
+    if (!empty($transaction_id)) {
+        wp_cache_set($transaction_id, $invoice->get_id(), 'getpaid_invoice_transaction_ids_to_invoice_ids');
     }
 
 }
-add_action( 'getpaid_new_invoice', 'getpaid_update_invoice_caches', 5 );
-add_action( 'getpaid_update_invoice', 'getpaid_update_invoice_caches', 5 );
+add_action('getpaid_new_invoice', 'getpaid_update_invoice_caches', 5);
+add_action('getpaid_update_invoice', 'getpaid_update_invoice_caches', 5);
 
 /**
  * Duplicates an invoice.
@@ -1078,7 +1078,7 @@ 
  * @param  WPInv_Invoice $old_invoice The invoice to duplicate
  * @return WPInv_Invoice The new invoice.
  */
-function getpaid_duplicate_invoice( $old_invoice ) {
+function getpaid_duplicate_invoice($old_invoice) {
 
     // Create the new invoice.
     $invoice = new WPInv_Invoice();
@@ -1138,136 +1138,136 @@ 
  * @param WPInv_Invoice $invoice
  * @return array
  */
-function getpaid_get_invoice_meta( $invoice ) {
+function getpaid_get_invoice_meta($invoice) {
 
     // Load the invoice meta.
     $meta = array(
 
         'number'         => array(
             'label' => sprintf(
-                __( '%s Number', 'invoicing' ),
-                ucfirst( $invoice->get_invoice_quote_type() )
+                __('%s Number', 'invoicing'),
+                ucfirst($invoice->get_invoice_quote_type())
             ),
-            'value' => sanitize_text_field( $invoice->get_number() ),
+            'value' => sanitize_text_field($invoice->get_number()),
         ),
 
         'status'         => array(
             'label' => sprintf(
-                __( '%s Status', 'invoicing' ),
-                ucfirst( $invoice->get_invoice_quote_type() )
+                __('%s Status', 'invoicing'),
+                ucfirst($invoice->get_invoice_quote_type())
             ),
             'value' => $invoice->get_status_label_html(),
         ),
 
         'date'           => array(
             'label' => sprintf(
-                __( '%s Date', 'invoicing' ),
-                ucfirst( $invoice->get_invoice_quote_type() )
+                __('%s Date', 'invoicing'),
+                ucfirst($invoice->get_invoice_quote_type())
             ),
-            'value' => getpaid_format_date( $invoice->get_created_date() ),
+            'value' => getpaid_format_date($invoice->get_created_date()),
         ),
 
         'date_paid'      => array(
-            'label' => __( 'Paid On', 'invoicing' ),
-            'value' => getpaid_format_date( $invoice->get_completed_date() ),
+            'label' => __('Paid On', 'invoicing'),
+            'value' => getpaid_format_date($invoice->get_completed_date()),
         ),
 
         'gateway'        => array(
-            'label' => __( 'Payment Method', 'invoicing' ),
-            'value' => sanitize_text_field( $invoice->get_gateway_title() ),
+            'label' => __('Payment Method', 'invoicing'),
+            'value' => sanitize_text_field($invoice->get_gateway_title()),
         ),
 
         'transaction_id' => array(
-            'label' => __( 'Transaction ID', 'invoicing' ),
-            'value' => sanitize_text_field( $invoice->get_transaction_id() ),
+            'label' => __('Transaction ID', 'invoicing'),
+            'value' => sanitize_text_field($invoice->get_transaction_id()),
         ),
 
         'due_date'       => array(
-            'label' => __( 'Due Date', 'invoicing' ),
-            'value' => getpaid_format_date( $invoice->get_due_date() ),
+            'label' => __('Due Date', 'invoicing'),
+            'value' => getpaid_format_date($invoice->get_due_date()),
         ),
 
         'vat_number'     => array(
-            'label' => __( 'VAT Number', 'invoicing' ),
-            'value' => sanitize_text_field( $invoice->get_vat_number() ),
+            'label' => __('VAT Number', 'invoicing'),
+            'value' => sanitize_text_field($invoice->get_vat_number()),
         ),
 
     );
 
-    $additional_meta = get_post_meta( $invoice->get_id(), 'additional_meta_data', true );
+    $additional_meta = get_post_meta($invoice->get_id(), 'additional_meta_data', true);
 
-    if ( ! empty( $additional_meta ) ) {
+    if (!empty($additional_meta)) {
 
-        foreach ( $additional_meta as $label => $value ) {
-            $meta[ sanitize_key( $label ) ] = array(
-                'label' => esc_html( $label ),
-                'value' => esc_html( $value ),
+        foreach ($additional_meta as $label => $value) {
+            $meta[sanitize_key($label)] = array(
+                'label' => esc_html($label),
+                'value' => esc_html($value),
             );
         }
 }
     // If it is not paid, remove the date of payment.
-    if ( ! $invoice->is_paid() && ! $invoice->is_refunded() ) {
-        unset( $meta['date_paid'] );
-        unset( $meta['transaction_id'] );
+    if (!$invoice->is_paid() && !$invoice->is_refunded()) {
+        unset($meta['date_paid']);
+        unset($meta['transaction_id']);
     }
 
-    if ( ! $invoice->is_paid() || 'none' == $invoice->get_gateway() ) {
-        unset( $meta['gateway'] );
+    if (!$invoice->is_paid() || 'none' == $invoice->get_gateway()) {
+        unset($meta['gateway']);
     }
 
     // Only display the due date if due dates are enabled.
-    if ( ! $invoice->needs_payment() || ! wpinv_get_option( 'overdue_active' ) ) {
-        unset( $meta['due_date'] );
+    if (!$invoice->needs_payment() || !wpinv_get_option('overdue_active')) {
+        unset($meta['due_date']);
     }
 
     // Only display the vat number if taxes are enabled.
-    if ( ! wpinv_use_taxes() ) {
-        unset( $meta['vat_number'] );
+    if (!wpinv_use_taxes()) {
+        unset($meta['vat_number']);
     }
 
     // Link to the parent invoice.
-    if ( $invoice->get_parent_id() > 0 ) {
+    if ($invoice->get_parent_id() > 0) {
 
         $meta['parent'] = array(
 
             'label' => sprintf(
-                __( 'Parent %s', 'invoicing' ),
-                ucfirst( $invoice->get_invoice_quote_type() )
+                __('Parent %s', 'invoicing'),
+                ucfirst($invoice->get_invoice_quote_type())
             ),
 
-            'value' => wpinv_invoice_link( $invoice->get_parent_id() ),
+            'value' => wpinv_invoice_link($invoice->get_parent_id()),
 
         );
 
     }
 
-    if ( $invoice->is_recurring() ) {
+    if ($invoice->is_recurring()) {
 
-        $subscription = getpaid_get_invoice_subscriptions( $invoice );
-        if ( ! empty( $subscription ) && ! is_array( $subscription ) && $subscription->exists() ) {
+        $subscription = getpaid_get_invoice_subscriptions($invoice);
+        if (!empty($subscription) && !is_array($subscription) && $subscription->exists()) {
 
             // Display the renewal date.
-            if ( $subscription->is_active() && 'cancelled' != $subscription->get_status() ) {
+            if ($subscription->is_active() && 'cancelled' != $subscription->get_status()) {
 
                 $meta['renewal_date'] = array(
-                    'label' => __( 'Renews On', 'invoicing' ),
-                    'value' => getpaid_format_date( $subscription->get_expiration() ) .
+                    'label' => __('Renews On', 'invoicing'),
+                    'value' => getpaid_format_date($subscription->get_expiration()) .
                     sprintf(
                         ' <a class="small" href="%s">%s<a>',
                         $subscription->get_view_url(),
-                        __( '(View Subscription)', 'invoicing' )
+                        __('(View Subscription)', 'invoicing')
                     ),
                 );
 
             }
 
-            if ( $invoice->is_parent() ) {
+            if ($invoice->is_parent()) {
 
                 // Display the recurring amount.
                 $meta['recurring_total'] = array(
 
-                    'label' => __( 'Recurring Amount', 'invoicing' ),
-                    'value' => wpinv_price( $subscription->get_recurring_amount(), $invoice->get_currency() ),
+                    'label' => __('Recurring Amount', 'invoicing'),
+                    'value' => wpinv_price($subscription->get_recurring_amount(), $invoice->get_currency()),
 
                 );
 
@@ -1278,13 +1278,13 @@ 
     // Add the invoice total to the meta.
     $meta['invoice_total'] = array(
 
-        'label' => __( 'Total Amount', 'invoicing' ),
-        'value' => wpinv_price( $invoice->get_total(), $invoice->get_currency() ),
+        'label' => __('Total Amount', 'invoicing'),
+        'value' => wpinv_price($invoice->get_total(), $invoice->get_currency()),
 
     );
 
     // Provide a way for third party plugins to filter the meta.
-    $meta = apply_filters( 'getpaid_invoice_meta_data', $meta, $invoice );
+    $meta = apply_filters('getpaid_invoice_meta_data', $meta, $invoice);
 
     return $meta;
 
@@ -1323,12 +1323,12 @@ 
  * @param GetPaid_Form_Item $item
  * @return float
  */
-function getpaid_get_invoice_tax_rate( $invoice, $item ) {
+function getpaid_get_invoice_tax_rate($invoice, $item) {
 
-    $rates   = getpaid_get_item_tax_rates( $item, $invoice->get_country(), $invoice->get_state() );
-	$rates   = getpaid_filter_item_tax_rates( $item, $rates );
-    $rates   = wp_list_pluck( $rates, 'rate' );
+    $rates   = getpaid_get_item_tax_rates($item, $invoice->get_country(), $invoice->get_state());
+	$rates = getpaid_filter_item_tax_rates($item, $rates);
+    $rates   = wp_list_pluck($rates, 'rate');
 
-    return array_sum( $rates );
+    return array_sum($rates);
 
 }

templates/emails/invoice-totals.php

Spacing +25 added lines, -25 removed lines

@@ -8,22 +8,22 @@ 
  * @var WPInv_Invoice $invoice
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 // Totals rows.
-$totals = getpaid_invoice_totals_rows( $invoice );
+$totals = getpaid_invoice_totals_rows($invoice);
 
-do_action( 'getpaid_before_email_line_totals', $invoice, $totals );
+do_action('getpaid_before_email_line_totals', $invoice, $totals);
 
 ?>
 
 
-<?php if ( has_action( 'wpinv_email_footer_buttons' ) ) : ?>
+<?php if (has_action('wpinv_email_footer_buttons')) : ?>
 
     <tr class="wpinv_cart_footer_row">
 
-        <td colspan="<?php echo ( (int) $column_count ); ?>">
-            <?php do_action( 'wpinv_email_footer_buttons' ); ?>
+        <td colspan="<?php echo ((int) $column_count); ?>">
+            <?php do_action('wpinv_email_footer_buttons'); ?>
         </td>
 
     </tr>
@@ -31,49 +31,49 @@ 
 <?php endif; ?>
 
 
-<?php foreach ( $totals as $key => $label ) : ?>
+<?php foreach ($totals as $key => $label) : ?>
 
-    <tr class="wpinv_cart_footer_row wpinv_cart_<?php echo esc_html( $key ); ?>_row">
+    <tr class="wpinv_cart_footer_row wpinv_cart_<?php echo esc_html($key); ?>_row">
 
-        <td colspan="<?php echo absint( ( $column_count - 1 ) ); ?>" class="wpinv_cart_<?php echo esc_html( $key ); ?>_label text-right">
-            <strong><?php echo esc_html( $label ); ?>:</strong>
+        <td colspan="<?php echo absint(($column_count - 1)); ?>" class="wpinv_cart_<?php echo esc_html($key); ?>_label text-right">
+            <strong><?php echo esc_html($label); ?>:</strong>
         </td>
 
-        <td class="wpinv_cart_<?php echo esc_html( $key ); ?> text-right">
+        <td class="wpinv_cart_<?php echo esc_html($key); ?> text-right">
 
             <?php
 
                 // Total tax.
-                if ( 'tax' == $key ) {
-                    wpinv_the_price( $invoice->get_total_tax(), $invoice->get_currency() );
+                if ('tax' == $key) {
+                    wpinv_the_price($invoice->get_total_tax(), $invoice->get_currency());
                 }
 
                 // Individual taxes.
-                if ( 0 === strpos( $key, 'tax__' ) ) {
-                    wpinv_the_price( $invoice->get_tax_total_by_name( str_replace( 'tax__', '', $key ) ), $invoice->get_currency() );
+                if (0 === strpos($key, 'tax__')) {
+                    wpinv_the_price($invoice->get_tax_total_by_name(str_replace('tax__', '', $key)), $invoice->get_currency());
                 }
 
-                if ( 'fee' == $key ) {
-                    wpinv_the_price( $invoice->get_total_fees(), $invoice->get_currency() );
+                if ('fee' == $key) {
+                    wpinv_the_price($invoice->get_total_fees(), $invoice->get_currency());
                 }
 
                 // Total discount.
-                if ( 'discount' == $key ) {
-                    wpinv_the_price( $invoice->get_total_discount(), $invoice->get_currency() );
+                if ('discount' == $key) {
+                    wpinv_the_price($invoice->get_total_discount(), $invoice->get_currency());
                 }
 
                 // Sub total.
-                if ( 'subtotal' == $key ) {
-                    wpinv_the_price( $invoice->get_subtotal(), $invoice->get_currency() );
+                if ('subtotal' == $key) {
+                    wpinv_the_price($invoice->get_subtotal(), $invoice->get_currency());
                 }
 
                 // Total.
-                if ( 'total' == $key ) {
-                    wpinv_the_price( $invoice->get_total(), $invoice->get_currency() );
+                if ('total' == $key) {
+                    wpinv_the_price($invoice->get_total(), $invoice->get_currency());
                 }
 
                 // Fires when printing a cart total in an email.
-                do_action( "getpaid_email_cart_totals_$key", $invoice );
+                do_action("getpaid_email_cart_totals_$key", $invoice);
 
             ?>
 
@@ -85,4 +85,4 @@ 
 
 <?php
 
-    do_action( 'getpaid_after_email_line_totals', $invoice, $totals );
+    do_action('getpaid_after_email_line_totals', $invoice, $totals);

templates/invoice/line-totals.php

Spacing +29 added lines, -29 removed lines

@@ -9,26 +9,26 @@ 
  * @var WPInv_Invoice $invoice
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 // Totals rows.
-$totals = getpaid_invoice_totals_rows( $invoice );
+$totals = getpaid_invoice_totals_rows($invoice);
 
-do_action( 'getpaid_before_invoice_line_totals', $invoice, $totals );
+do_action('getpaid_before_invoice_line_totals', $invoice, $totals);
 
 ?>
 <div class='getpaid-invoice-line-totals'>
     <div class="row">
         <div class="col-12 offset-sm-6 col-sm-6 border-sm-left pl-sm-0">
 
-            <?php foreach ( $totals as $key => $label ) : ?>
+            <?php foreach ($totals as $key => $label) : ?>
 
-                <div class="getpaid-invoice-line-totals-col <?php echo esc_attr( $key ); ?>">
+                <div class="getpaid-invoice-line-totals-col <?php echo esc_attr($key); ?>">
 
                     <div class="form-row row">
 
                         <div class="col-8 getpaid-invoice-line-totals-label">
-                            <?php echo esc_html( $label ); ?>
+                            <?php echo esc_html($label); ?>
                         </div>
 
                         <div class="col-4 getpaid-invoice-line-totals-value pl-0">
@@ -36,62 +36,62 @@ 
                             <?php
 
                                 // Total tax.
-                                if ( 'tax' === $key ) {
-                                    wpinv_the_price( $invoice->get_total_tax(), $invoice->get_currency() );
+                                if ('tax' === $key) {
+                                    wpinv_the_price($invoice->get_total_tax(), $invoice->get_currency());
 
-                                    if ( wpinv_use_taxes() && ! $invoice->get_disable_taxes() ) {
+                                    if (wpinv_use_taxes() && !$invoice->get_disable_taxes()) {
 
                                         $taxes = $invoice->get_total_tax();
-                                        if ( empty( $taxes ) && GetPaid_Payment_Form_Submission_Taxes::is_eu_transaction( $invoice->get_country() ) ) {
+                                        if (empty($taxes) && GetPaid_Payment_Form_Submission_Taxes::is_eu_transaction($invoice->get_country())) {
                                             echo ' <em class="text-muted small">';
-                                            _x( '(Reverse charged)', 'This is a legal term for reverse charging tax in the EU', 'invoicing' );
+                                            _x('(Reverse charged)', 'This is a legal term for reverse charging tax in the EU', 'invoicing');
                                             echo '</em>';
                                         }
                                     }
                                 }
 
                                 // Check if field starts with tax__.
-                                if ( 0 === strpos( $key, 'tax__' ) ) {
-                                    $tax_amount = $invoice->get_tax_total_by_name( str_replace( 'tax__', '', $key ) );
-                                    wpinv_the_price( $tax_amount, $invoice->get_currency() );
+                                if (0 === strpos($key, 'tax__')) {
+                                    $tax_amount = $invoice->get_tax_total_by_name(str_replace('tax__', '', $key));
+                                    wpinv_the_price($tax_amount, $invoice->get_currency());
 
-                                    if ( wpinv_use_taxes() && ! $invoice->get_disable_taxes() ) {
+                                    if (wpinv_use_taxes() && !$invoice->get_disable_taxes()) {
 
-                                        if ( empty( $tax_amount ) && GetPaid_Payment_Form_Submission_Taxes::is_eu_transaction( $invoice->get_country() ) ) {
+                                        if (empty($tax_amount) && GetPaid_Payment_Form_Submission_Taxes::is_eu_transaction($invoice->get_country())) {
                                             echo ' <em class="text-muted small">';
-                                            _x( '(Reverse charged)', 'This is a legal term for reverse charging tax in the EU', 'invoicing' );
+                                            _x('(Reverse charged)', 'This is a legal term for reverse charging tax in the EU', 'invoicing');
                                             echo '</em>';
                                         }
                                     }
                                 }
 
                                 // Total Fee.
-                                if ( 'fee' === $key ) {
-								wpinv_the_price( $invoice->get_total_fees(), $invoice->get_currency() );
+                                if ('fee' === $key) {
+								wpinv_the_price($invoice->get_total_fees(), $invoice->get_currency());
                                 }
 
                                 // Total discount.
-                                if ( 'discount' === $key ) {
-								wpinv_the_price( $invoice->get_total_discount(), $invoice->get_currency() );
+                                if ('discount' === $key) {
+								wpinv_the_price($invoice->get_total_discount(), $invoice->get_currency());
                                 }
 
                                 // Shipping.
-                                if ( 'shipping' === $key ) {
-								wpinv_the_price( $invoice->get_shipping(), $invoice->get_currency() );
+                                if ('shipping' === $key) {
+								wpinv_the_price($invoice->get_shipping(), $invoice->get_currency());
                                 }
 
                                 // Sub total.
-                                if ( 'subtotal' === $key ) {
-								wpinv_the_price( $invoice->get_subtotal(), $invoice->get_currency() );
+                                if ('subtotal' === $key) {
+								wpinv_the_price($invoice->get_subtotal(), $invoice->get_currency());
                                 }
 
                                 // Total.
-                                if ( 'total' === $key ) {
-								wpinv_the_price( $invoice->get_total(), $invoice->get_currency() );
+                                if ('total' === $key) {
+								wpinv_the_price($invoice->get_total(), $invoice->get_currency());
                                 }
 
                                 // Fires when printing a cart total.
-                                do_action( "getpaid_invoice_cart_totals_$key", $invoice );
+                                do_action("getpaid_invoice_cart_totals_$key", $invoice);
 
                             ?>
 
@@ -105,4 +105,4 @@ 
     </div>
 </div> <!-- end .getpaid-invoice-line-totals -->
 
-<?php do_action( 'getpaid_after_invoice_line_totals', $invoice, $totals ); ?>
+<?php do_action('getpaid_after_invoice_line_totals', $invoice, $totals); ?>