AyeCode / invoicing

includes/admin/class-getpaid-admin.php

Indentation +620 added lines, -620 removed lines

@@ -14,93 +14,93 @@ 
 class GetPaid_Admin {
 
     /**
-	 * Local path to this plugins admin directory
-	 *
-	 * @var         string
-	 */
-	public $admin_path;
-
-	/**
-	 * Web path to this plugins admin directory
-	 *
-	 * @var         string
-	 */
-	public $admin_url;
-
-	/**
-	 * Reports components.
-	 *
-	 * @var GetPaid_Reports
-	 */
+     * Local path to this plugins admin directory
+     *
+     * @var         string
+     */
+    public $admin_path;
+
+    /**
+     * Web path to this plugins admin directory
+     *
+     * @var         string
+     */
+    public $admin_url;
+
+    /**
+     * Reports components.
+     *
+     * @var GetPaid_Reports
+     */
     public $reports;
 
     /**
-	 * Class constructor.
-	 */
-	public function __construct() {
+     * Class constructor.
+     */
+    public function __construct() {
 
         $this->admin_path  = plugin_dir_path( __FILE__ );
-		$this->admin_url   = plugins_url( '/', __FILE__ );
-		$this->reports     = new GetPaid_Reports();
+        $this->admin_url   = plugins_url( '/', __FILE__ );
+        $this->reports     = new GetPaid_Reports();
 
         if ( is_admin() ) {
-			$this->init_admin_hooks();
+            $this->init_admin_hooks();
         }
 
     }
 
     /**
-	 * Init action and filter hooks
-	 *
-	 */
-	private function init_admin_hooks() {
+     * Init action and filter hooks
+     *
+     */
+    private function init_admin_hooks() {
         add_action( 'admin_enqueue_scripts', array( $this, 'enqeue_scripts' ), 9 );
         add_filter( 'admin_body_class', array( $this, 'admin_body_class' ) );
         add_action( 'admin_init', array( $this, 'init_ayecode_connect_helper' ) );
         add_action( 'admin_init', array( $this, 'activation_redirect' ) );
         add_action( 'admin_init', array( $this, 'maybe_do_admin_action' ) );
-		add_action( 'admin_notices', array( $this, 'show_notices' ) );
-		add_action( 'getpaid_authenticated_admin_action_rate_plugin', array( $this, 'redirect_to_wordpress_rating_page' ) );
-		add_action( 'getpaid_authenticated_admin_action_duplicate_form', array( $this, 'duplicate_payment_form' ) );
-		add_action( 'getpaid_authenticated_admin_action_reset_form_stats', array( $this, 'reset_form_stats' ) );
-		add_action( 'getpaid_authenticated_admin_action_duplicate_invoice', array( $this, 'duplicate_invoice' ) );
-		add_action( 'getpaid_authenticated_admin_action_send_invoice', array( $this, 'send_customer_invoice' ) );
-		add_action( 'getpaid_authenticated_admin_action_send_invoice_reminder', array( $this, 'send_customer_payment_reminder' ) );
+        add_action( 'admin_notices', array( $this, 'show_notices' ) );
+        add_action( 'getpaid_authenticated_admin_action_rate_plugin', array( $this, 'redirect_to_wordpress_rating_page' ) );
+        add_action( 'getpaid_authenticated_admin_action_duplicate_form', array( $this, 'duplicate_payment_form' ) );
+        add_action( 'getpaid_authenticated_admin_action_reset_form_stats', array( $this, 'reset_form_stats' ) );
+        add_action( 'getpaid_authenticated_admin_action_duplicate_invoice', array( $this, 'duplicate_invoice' ) );
+        add_action( 'getpaid_authenticated_admin_action_send_invoice', array( $this, 'send_customer_invoice' ) );
+        add_action( 'getpaid_authenticated_admin_action_send_invoice_reminder', array( $this, 'send_customer_payment_reminder' ) );
         add_action( 'getpaid_authenticated_admin_action_reset_tax_rates', array( $this, 'admin_reset_tax_rates' ) );
-		add_action( 'getpaid_authenticated_admin_action_create_missing_pages', array( $this, 'admin_create_missing_pages' ) );
-		add_action( 'getpaid_authenticated_admin_action_refresh_permalinks', array( $this, 'admin_refresh_permalinks' ) );
-		add_action( 'getpaid_authenticated_admin_action_create_missing_tables', array( $this, 'admin_create_missing_tables' ) );
-		add_action( 'getpaid_authenticated_admin_action_migrate_old_invoices', array( $this, 'admin_migrate_old_invoices' ) );
-		add_action( 'getpaid_authenticated_admin_action_download_customers', array( $this, 'admin_download_customers' ) );
-		add_action( 'getpaid_authenticated_admin_action_recalculate_discounts', array( $this, 'admin_recalculate_discounts' ) );
-		add_action( 'getpaid_authenticated_admin_action_install_plugin', array( $this, 'admin_install_plugin' ) );
-		add_action( 'getpaid_authenticated_admin_action_connect_gateway', array( $this, 'admin_connect_gateway' ) );
-		add_filter( 'admin_footer_text', array( $this, 'admin_footer_text' ) );
-		do_action( 'getpaid_init_admin_hooks', $this );
-
-		// Setup/welcome
-		if ( ! empty( $_GET['page'] ) ) {
-			switch ( sanitize_text_field( $_GET['page'] ) ) {
-				case 'gp-setup':
-					include_once dirname( __FILE__ ) . '/class-getpaid-admin-setup-wizard.php';
-					break;
-			}
-		}
-
-    }
-
-    /**
-	 * Register admin scripts
-	 *
-	 */
-	public function enqeue_scripts() {
+        add_action( 'getpaid_authenticated_admin_action_create_missing_pages', array( $this, 'admin_create_missing_pages' ) );
+        add_action( 'getpaid_authenticated_admin_action_refresh_permalinks', array( $this, 'admin_refresh_permalinks' ) );
+        add_action( 'getpaid_authenticated_admin_action_create_missing_tables', array( $this, 'admin_create_missing_tables' ) );
+        add_action( 'getpaid_authenticated_admin_action_migrate_old_invoices', array( $this, 'admin_migrate_old_invoices' ) );
+        add_action( 'getpaid_authenticated_admin_action_download_customers', array( $this, 'admin_download_customers' ) );
+        add_action( 'getpaid_authenticated_admin_action_recalculate_discounts', array( $this, 'admin_recalculate_discounts' ) );
+        add_action( 'getpaid_authenticated_admin_action_install_plugin', array( $this, 'admin_install_plugin' ) );
+        add_action( 'getpaid_authenticated_admin_action_connect_gateway', array( $this, 'admin_connect_gateway' ) );
+        add_filter( 'admin_footer_text', array( $this, 'admin_footer_text' ) );
+        do_action( 'getpaid_init_admin_hooks', $this );
+
+        // Setup/welcome
+        if ( ! empty( $_GET['page'] ) ) {
+            switch ( sanitize_text_field( $_GET['page'] ) ) {
+                case 'gp-setup':
+                    include_once dirname( __FILE__ ) . '/class-getpaid-admin-setup-wizard.php';
+                    break;
+            }
+        }
+
+    }
+
+    /**
+     * Register admin scripts
+     *
+     */
+    public function enqeue_scripts() {
         global $current_screen, $pagenow;
 
-		$page    = isset( $_GET['page'] ) ? sanitize_text_field( $_GET['page'] ) : '';
-		$editing = $pagenow == 'post.php' || $pagenow == 'post-new.php';
+        $page    = isset( $_GET['page'] ) ? sanitize_text_field( $_GET['page'] ) : '';
+        $editing = $pagenow == 'post.php' || $pagenow == 'post-new.php';
 
         if ( ! empty( $current_screen->post_type ) ) {
-			$page = $current_screen->post_type;
+            $page = $current_screen->post_type;
         }
 
         // General styles.
@@ -121,53 +121,53 @@ 
         }
 
         // Payment form scripts.
-		if ( 'wpi_payment_form' == $page && $editing ) {
+        if ( 'wpi_payment_form' == $page && $editing ) {
             $this->load_payment_form_scripts();
         }
 
-		if ( $page == 'wpinv-subscriptions' ) {
-			wp_enqueue_script( 'postbox' );
-		}
+        if ( $page == 'wpinv-subscriptions' ) {
+            wp_enqueue_script( 'postbox' );
+        }
 
     }
 
     /**
-	 * Returns admin js translations.
-	 *
-	 */
-	protected function get_admin_i18() {
+     * Returns admin js translations.
+     *
+     */
+    protected function get_admin_i18() {
         global $post;
 
-		$date_range = array(
-			'period' => isset( $_GET['date_range'] ) ? sanitize_text_field( $_GET['date_range'] ) : '7_days',
-		);
+        $date_range = array(
+            'period' => isset( $_GET['date_range'] ) ? sanitize_text_field( $_GET['date_range'] ) : '7_days',
+        );
 
-		if ( $date_range['period'] == 'custom' ) {
+        if ( $date_range['period'] == 'custom' ) {
 
-			if ( isset( $_GET['from'] ) ) {
-				$date_range['after'] = date( 'Y-m-d', strtotime( sanitize_text_field( $_GET['from'] ), current_time( 'timestamp' ) ) - DAY_IN_SECONDS );
-			}
+            if ( isset( $_GET['from'] ) ) {
+                $date_range['after'] = date( 'Y-m-d', strtotime( sanitize_text_field( $_GET['from'] ), current_time( 'timestamp' ) ) - DAY_IN_SECONDS );
+            }
 
-			if ( isset( $_GET['to'] ) ) {
-				$date_range['before'] = date( 'Y-m-d', strtotime( sanitize_text_field( $_GET['to'] ), current_time( 'timestamp' ) ) + DAY_IN_SECONDS );
-			}
+            if ( isset( $_GET['to'] ) ) {
+                $date_range['before'] = date( 'Y-m-d', strtotime( sanitize_text_field( $_GET['to'] ), current_time( 'timestamp' ) ) + DAY_IN_SECONDS );
+            }
 }
 
         $i18n = array(
             'ajax_url'                  => admin_url( 'admin-ajax.php' ),
             'post_ID'                   => isset( $post->ID ) ? $post->ID : '',
-			'wpinv_nonce'               => wp_create_nonce( 'wpinv-nonce' ),
-			'rest_nonce'                => wp_create_nonce( 'wp_rest' ),
-			'rest_root'                 => esc_url_raw( rest_url() ),
-			'date_range'                => $date_range,
+            'wpinv_nonce'               => wp_create_nonce( 'wpinv-nonce' ),
+            'rest_nonce'                => wp_create_nonce( 'wp_rest' ),
+            'rest_root'                 => esc_url_raw( rest_url() ),
+            'date_range'                => $date_range,
             'add_invoice_note_nonce'    => wp_create_nonce( 'add-invoice-note' ),
             'delete_invoice_note_nonce' => wp_create_nonce( 'delete-invoice-note' ),
             'invoice_item_nonce'        => wp_create_nonce( 'invoice-item' ),
             'billing_details_nonce'     => wp_create_nonce( 'get-billing-details' ),
             'tax'                       => wpinv_tax_amount(),
             'discount'                  => 0,
-			'currency_symbol'           => wpinv_currency_symbol(),
-			'currency'                  => wpinv_get_currency(),
+            'currency_symbol'           => wpinv_currency_symbol(),
+            'currency'                  => wpinv_get_currency(),
             'currency_pos'              => wpinv_currency_position(),
             'thousand_sep'              => wpinv_thousands_separator(),
             'decimal_sep'               => wpinv_decimal_separator(),
@@ -187,118 +187,118 @@ 
             'item_description'          => __( 'Item Description', 'invoicing' ),
             'invoice_description'       => __( 'Invoice Description', 'invoicing' ),
             'discount_description'      => __( 'Discount Description', 'invoicing' ),
-			'searching'                 => __( 'Searching', 'invoicing' ),
-			'loading'                   => __( 'Loading...', 'invoicing' ),
-			'search_customers'          => __( 'Enter customer name or email', 'invoicing' ),
-			'search_items'              => __( 'Enter item name', 'invoicing' ),
-			'graphs'                    => array_merge( array( 'refunded_fees', 'refunded_items', 'refunded_subtotal', 'refunded_tax' ), array_keys( wpinv_get_report_graphs() ) ),
+            'searching'                 => __( 'Searching', 'invoicing' ),
+            'loading'                   => __( 'Loading...', 'invoicing' ),
+            'search_customers'          => __( 'Enter customer name or email', 'invoicing' ),
+            'search_items'              => __( 'Enter item name', 'invoicing' ),
+            'graphs'                    => array_merge( array( 'refunded_fees', 'refunded_items', 'refunded_subtotal', 'refunded_tax' ), array_keys( wpinv_get_report_graphs() ) ),
         );
 
-		if ( ! empty( $post ) && getpaid_is_invoice_post_type( $post->post_type ) ) {
+        if ( ! empty( $post ) && getpaid_is_invoice_post_type( $post->post_type ) ) {
 
-			$invoice              = new WPInv_Invoice( $post );
-			$i18n['save_invoice'] = sprintf(
-				__( 'Save %s', 'invoicing' ),
-				ucfirst( $invoice->get_invoice_quote_type() )
-			);
+            $invoice              = new WPInv_Invoice( $post );
+            $i18n['save_invoice'] = sprintf(
+                __( 'Save %s', 'invoicing' ),
+                ucfirst( $invoice->get_invoice_quote_type() )
+            );
 
-			$i18n['invoice_description'] = sprintf(
-				__( '%s Description', 'invoicing' ),
-				ucfirst( $invoice->get_invoice_quote_type() )
-			);
+            $i18n['invoice_description'] = sprintf(
+                __( '%s Description', 'invoicing' ),
+                ucfirst( $invoice->get_invoice_quote_type() )
+            );
 
-		}
-		return $i18n;
-	}
+        }
+        return $i18n;
+    }
 
-	/**
-	 * Change the admin footer text on GetPaid admin pages.
-	 *
-	 * @since  2.0.0
-	 * @param  string $footer_text
-	 * @return string
-	 */
-	public function admin_footer_text( $footer_text ) {
-		global $current_screen;
+    /**
+     * Change the admin footer text on GetPaid admin pages.
+     *
+     * @since  2.0.0
+     * @param  string $footer_text
+     * @return string
+     */
+    public function admin_footer_text( $footer_text ) {
+        global $current_screen;
 
-		$page    = isset( $_GET['page'] ) ? sanitize_text_field( $_GET['page'] ) : '';
+        $page    = isset( $_GET['page'] ) ? sanitize_text_field( $_GET['page'] ) : '';
 
         if ( ! empty( $current_screen->post_type ) ) {
-			$page = $current_screen->post_type;
+            $page = $current_screen->post_type;
         }
 
         // General styles.
         if ( apply_filters( 'getpaid_display_admin_footer_text', wpinv_current_user_can_manage_invoicing() ) && false !== stripos( $page, 'wpi' ) ) {
 
-			// Change the footer text
-			if ( ! get_user_meta( get_current_user_id(), 'getpaid_admin_footer_text_rated', true ) ) {
+            // Change the footer text
+            if ( ! get_user_meta( get_current_user_id(), 'getpaid_admin_footer_text_rated', true ) ) {
 
-				$rating_url  = esc_url(
-					wp_nonce_url(
-						admin_url( 'admin.php?page=wpinv-reports&getpaid-admin-action=rate_plugin' ),
-						'getpaid-nonce',
-						'getpaid-nonce'
+                $rating_url  = esc_url(
+                    wp_nonce_url(
+                        admin_url( 'admin.php?page=wpinv-reports&getpaid-admin-action=rate_plugin' ),
+                        'getpaid-nonce',
+                        'getpaid-nonce'
                     )
-				);
+                );
 
-				$footer_text = sprintf(
-					/* translators: %s: five stars */
-					__( 'If you like <strong>GetPaid</strong>, please leave us a %s rating. A huge thanks in advance!', 'invoicing' ),
-					"<a href='$rating_url'>&#9733;&#9733;&#9733;&#9733;&#9733;</a>"
-				);
+                $footer_text = sprintf(
+                    /* translators: %s: five stars */
+                    __( 'If you like <strong>GetPaid</strong>, please leave us a %s rating. A huge thanks in advance!', 'invoicing' ),
+                    "<a href='$rating_url'>&#9733;&#9733;&#9733;&#9733;&#9733;</a>"
+                );
 
-			} else {
+            } else {
 
-				$footer_text = sprintf(
-					/* translators: %s: GetPaid */
-					__( 'Thank you for using %s!', 'invoicing' ),
-					"<a href='https://wpgetpaid.com/' target='_blank'><strong>GetPaid</strong></a>"
-				);
+                $footer_text = sprintf(
+                    /* translators: %s: GetPaid */
+                    __( 'Thank you for using %s!', 'invoicing' ),
+                    "<a href='https://wpgetpaid.com/' target='_blank'><strong>GetPaid</strong></a>"
+                );
 
-			}
+            }
 }
 
-		return $footer_text;
-	}
-
-	/**
-	 * Redirects to wp.org to rate the plugin.
-	 *
-	 * @since  2.0.0
-	 */
-	public function redirect_to_wordpress_rating_page() {
-		update_user_meta( get_current_user_id(), 'getpaid_admin_footer_text_rated', 1 );
-		wp_redirect( 'https://wordpress.org/support/plugin/invoicing/reviews?rate=5#new-post' );
-		exit;
-	}
-
-    /**
-	 * Loads payment form js.
-	 *
-	 */
-	protected function load_payment_form_scripts() {
+        return $footer_text;
+    }
+
+    /**
+     * Redirects to wp.org to rate the plugin.
+     *
+     * @since  2.0.0
+     */
+    public function redirect_to_wordpress_rating_page() {
+        update_user_meta( get_current_user_id(), 'getpaid_admin_footer_text_rated', 1 );
+        wp_redirect( 'https://wordpress.org/support/plugin/invoicing/reviews?rate=5#new-post' );
+        exit;
+    }
+
+    /**
+     * Loads payment form js.
+     *
+     */
+    protected function load_payment_form_scripts() {
         global $post;
 
         wp_enqueue_script( 'vue', WPINV_PLUGIN_URL . 'assets/js/vue/vue.min.js', array(), WPINV_VERSION );
-		wp_enqueue_script( 'sortable', WPINV_PLUGIN_URL . 'assets/js/sortable.min.js', array(), WPINV_VERSION );
-		wp_enqueue_script( 'vue_draggable', WPINV_PLUGIN_URL . 'assets/js/vue/vuedraggable.min.js', array( 'sortable', 'vue' ), WPINV_VERSION );
+        wp_enqueue_script( 'sortable', WPINV_PLUGIN_URL . 'assets/js/sortable.min.js', array(), WPINV_VERSION );
+        wp_enqueue_script( 'vue_draggable', WPINV_PLUGIN_URL . 'assets/js/vue/vuedraggable.min.js', array( 'sortable', 'vue' ), WPINV_VERSION );
 
-		$version = filemtime( WPINV_PLUGIN_DIR . 'assets/js/admin-payment-forms.js' );
-		wp_register_script( 'wpinv-admin-payment-form-script', WPINV_PLUGIN_URL . 'assets/js/admin-payment-forms.js', array( 'wpinv-admin-script', 'vue_draggable', 'wp-hooks' ), $version );
+        $version = filemtime( WPINV_PLUGIN_DIR . 'assets/js/admin-payment-forms.js' );
+        wp_register_script( 'wpinv-admin-payment-form-script', WPINV_PLUGIN_URL . 'assets/js/admin-payment-forms.js', array( 'wpinv-admin-script', 'vue_draggable', 'wp-hooks' ), $version );
 
-		wp_localize_script(
+        wp_localize_script(
             'wpinv-admin-payment-form-script',
             'wpinvPaymentFormAdmin',
             array(
-				'elements'      => wpinv_get_data( 'payment-form-elements' ),
-				'form_elements' => getpaid_get_payment_form_elements( $post->ID ),
-				'currency'      => wpinv_currency_symbol(),
-				'position'      => wpinv_currency_position(),
-				'decimals'      => (int) wpinv_decimals(),
-				'thousands_sep' => wpinv_thousands_separator(),
-				'decimals_sep'  => wpinv_decimal_separator(),
-				'form_items'    => gepaid_get_form_items( $post->ID ),
-				'is_default'    => $post->ID == wpinv_get_default_payment_form(),
+                'elements'      => wpinv_get_data( 'payment-form-elements' ),
+                'form_elements' => getpaid_get_payment_form_elements( $post->ID ),
+                'currency'      => wpinv_currency_symbol(),
+                'position'      => wpinv_currency_position(),
+                'decimals'      => (int) wpinv_decimals(),
+                'thousands_sep' => wpinv_thousands_separator(),
+                'decimals_sep'  => wpinv_decimal_separator(),
+                'form_items'    => gepaid_get_form_items( $post->ID ),
+                'is_default'    => $post->ID == wpinv_get_default_payment_form(),
             )
         );
 
@@ -307,19 +307,19 @@ 
     }
 
     /**
-	 * Add our classes to admin pages.
+     * Add our classes to admin pages.
      *
      * @param string $classes
      * @return string
-	 *
-	 */
+     *
+     */
     public function admin_body_class( $classes ) {
-		global $pagenow, $post, $current_screen;
+        global $pagenow, $post, $current_screen;
 
         $page = isset( $_GET['page'] ) ? sanitize_text_field( $_GET['page'] ) : '';
 
         if ( ! empty( $current_screen->post_type ) ) {
-			$page = $current_screen->post_type;
+            $page = $current_screen->post_type;
         }
 
         if ( false !== stripos( $page, 'wpi' ) ) {
@@ -328,70 +328,70 @@ 
 
         if ( in_array( $page, wpinv_parse_list( 'wpi_invoice wpi_payment_form wpi_quote' ) ) ) {
             $classes .= ' wpinv-cpt wpinv';
-		}
+        }
 
-		if ( getpaid_is_invoice_post_type( $page ) ) {
+        if ( getpaid_is_invoice_post_type( $page ) ) {
             $classes .= ' getpaid-is-invoice-cpt';
         }
 
-		return $classes;
+        return $classes;
     }
 
     /**
-	 * Maybe show the AyeCode Connect Notice.
-	 */
-	public function init_ayecode_connect_helper() {
+     * Maybe show the AyeCode Connect Notice.
+     */
+    public function init_ayecode_connect_helper() {
 
-		// Register with the deactivation survey class.
-		AyeCode_Deactivation_Survey::instance(
+        // Register with the deactivation survey class.
+        AyeCode_Deactivation_Survey::instance(
             array(
-				'slug'              => 'invoicing',
-				'version'           => WPINV_VERSION,
-				'support_url'       => 'https://wpgetpaid.com/support/',
-				'documentation_url' => 'https://docs.wpgetpaid.com/',
-				'activated'         => (int) get_option( 'gepaid_installed_on' ),
+                'slug'              => 'invoicing',
+                'version'           => WPINV_VERSION,
+                'support_url'       => 'https://wpgetpaid.com/support/',
+                'documentation_url' => 'https://docs.wpgetpaid.com/',
+                'activated'         => (int) get_option( 'gepaid_installed_on' ),
             )
         );
 
         new AyeCode_Connect_Helper(
             array(
-				'connect_title'     => __( 'WP Invoicing - an AyeCode product!', 'invoicing' ),
-				'connect_external'  => __( 'Please confirm you wish to connect your site?', 'invoicing' ),
-				'connect'           => sprintf( __( '<strong>Have a license?</strong> Forget about entering license keys or downloading zip files, connect your site for instant access. %1$slearn more%2$s', 'invoicing' ), "<a href='https://ayecode.io/introducing-ayecode-connect/' target='_blank'>", '</a>' ),
-				'connect_button'    => __( 'Connect Site', 'invoicing' ),
-				'connecting_button' => __( 'Connecting...', 'invoicing' ),
-				'error_localhost'   => __( 'This service will only work with a live domain, not a localhost.', 'invoicing' ),
-				'error'             => __( 'Something went wrong, please refresh and try again.', 'invoicing' ),
+                'connect_title'     => __( 'WP Invoicing - an AyeCode product!', 'invoicing' ),
+                'connect_external'  => __( 'Please confirm you wish to connect your site?', 'invoicing' ),
+                'connect'           => sprintf( __( '<strong>Have a license?</strong> Forget about entering license keys or downloading zip files, connect your site for instant access. %1$slearn more%2$s', 'invoicing' ), "<a href='https://ayecode.io/introducing-ayecode-connect/' target='_blank'>", '</a>' ),
+                'connect_button'    => __( 'Connect Site', 'invoicing' ),
+                'connecting_button' => __( 'Connecting...', 'invoicing' ),
+                'error_localhost'   => __( 'This service will only work with a live domain, not a localhost.', 'invoicing' ),
+                'error'             => __( 'Something went wrong, please refresh and try again.', 'invoicing' ),
             ),
             array( 'wpi-addons' )
         );
 
     }
 
-	/**
-	 * Redirect users to settings on activation.
-	 *
-	 * @return void
-	 */
-	public function activation_redirect() {
+    /**
+     * Redirect users to settings on activation.
+     *
+     * @return void
+     */
+    public function activation_redirect() {
 
-		$redirected = get_option( 'wpinv_redirected_to_settings' );
+        $redirected = get_option( 'wpinv_redirected_to_settings' );
 
-		if ( ! empty( $redirected ) || wp_doing_ajax() || ! current_user_can( 'manage_options' ) ) {
-			return;
-		}
+        if ( ! empty( $redirected ) || wp_doing_ajax() || ! current_user_can( 'manage_options' ) ) {
+            return;
+        }
 
-		// Bail if activating from network, or bulk
-		if ( is_network_admin() || isset( $_GET['activate-multi'] ) ) {
-			return;
-		}
+        // Bail if activating from network, or bulk
+        if ( is_network_admin() || isset( $_GET['activate-multi'] ) ) {
+            return;
+        }
 
-	    update_option( 'wpinv_redirected_to_settings', 1 );
+        update_option( 'wpinv_redirected_to_settings', 1 );
 
         wp_safe_redirect( admin_url( 'index.php?page=gp-setup' ) );
         exit;
 
-	}
+    }
 
     /**
      * Fires an admin action after verifying that a user can fire them.
@@ -404,564 +404,564 @@ 
         }
     }
 
-	/**
+    /**
      * Duplicate invoice.
-	 *
-	 * @param array $args
+     *
+     * @param array $args
      */
     public function duplicate_invoice( $args ) {
 
-		if ( empty( $args['invoice_id'] ) ) {
-			return;
-		}
+        if ( empty( $args['invoice_id'] ) ) {
+            return;
+        }
 
-		$invoice = new WPInv_Invoice( (int) $args['invoice_id'] );
+        $invoice = new WPInv_Invoice( (int) $args['invoice_id'] );
 
-		if ( ! $invoice->exists() ) {
-			return;
-		}
+        if ( ! $invoice->exists() ) {
+            return;
+        }
 
-		$new_invoice = getpaid_duplicate_invoice( $invoice );
-		$new_invoice->save();
+        $new_invoice = getpaid_duplicate_invoice( $invoice );
+        $new_invoice->save();
 
-		if ( $new_invoice->exists() ) {
+        if ( $new_invoice->exists() ) {
 
-			getpaid_admin()->show_success( __( 'Invoice duplicated successfully.', 'invoicing' ) );
+            getpaid_admin()->show_success( __( 'Invoice duplicated successfully.', 'invoicing' ) );
 
-			wp_safe_redirect(
-				add_query_arg(
-					array(
-						'action' => 'edit',
-						'post'   => $new_invoice->get_id(),
-					),
-					admin_url( 'post.php' )
-				)
-			);
-			exit;
+            wp_safe_redirect(
+                add_query_arg(
+                    array(
+                        'action' => 'edit',
+                        'post'   => $new_invoice->get_id(),
+                    ),
+                    admin_url( 'post.php' )
+                )
+            );
+            exit;
 
-		}
+        }
 
-		getpaid_admin()->show_error( __( 'There was an error duplicating this invoice. Please try again.', 'invoicing' ) );
+        getpaid_admin()->show_error( __( 'There was an error duplicating this invoice. Please try again.', 'invoicing' ) );
 
-	}
+    }
 
-	/**
+    /**
      * Sends a payment reminder to a customer.
-	 *
-	 * @param array $args
+     *
+     * @param array $args
      */
     public function duplicate_payment_form( $args ) {
 
-		if ( empty( $args['form_id'] ) ) {
-			return;
-		}
-
-		$form = new GetPaid_Payment_Form( (int) $args['form_id'] );
+        if ( empty( $args['form_id'] ) ) {
+            return;
+        }
 
-		if ( ! $form->exists() ) {
-			return;
-		}
+        $form = new GetPaid_Payment_Form( (int) $args['form_id'] );
 
-		$new_form = new GetPaid_Payment_Form();
-		$new_form->set_author( $form->get_author( 'edit' ) );
-		$new_form->set_name( $form->get_name( 'edit' ) . __( '(copy)', 'invoicing' ) );
-		$new_form->set_elements( $form->get_elements( 'edit' ) );
-		$new_form->set_items( $form->get_items( 'edit' ) );
-		$new_form->save();
+        if ( ! $form->exists() ) {
+            return;
+        }
 
-		if ( $new_form->exists() ) {
-			$this->show_success( __( 'Form duplicated successfully', 'invoicing' ) );
-			$url = get_edit_post_link( $new_form->get_id(), 'edit' );
-		} else {
-			$this->show_error( __( 'Unable to duplicate form', 'invoicing' ) );
-			$url = remove_query_arg( array( 'getpaid-admin-action', 'form_id', 'getpaid-nonce' ) );
-		}
+        $new_form = new GetPaid_Payment_Form();
+        $new_form->set_author( $form->get_author( 'edit' ) );
+        $new_form->set_name( $form->get_name( 'edit' ) . __( '(copy)', 'invoicing' ) );
+        $new_form->set_elements( $form->get_elements( 'edit' ) );
+        $new_form->set_items( $form->get_items( 'edit' ) );
+        $new_form->save();
+
+        if ( $new_form->exists() ) {
+            $this->show_success( __( 'Form duplicated successfully', 'invoicing' ) );
+            $url = get_edit_post_link( $new_form->get_id(), 'edit' );
+        } else {
+            $this->show_error( __( 'Unable to duplicate form', 'invoicing' ) );
+            $url = remove_query_arg( array( 'getpaid-admin-action', 'form_id', 'getpaid-nonce' ) );
+        }
 
-		wp_redirect( $url );
-		exit;
-	}
+        wp_redirect( $url );
+        exit;
+    }
 
-	/**
+    /**
      * Resets form stats.
-	 *
-	 * @param array $args
+     *
+     * @param array $args
      */
     public function reset_form_stats( $args ) {
 
-		if ( empty( $args['form_id'] ) ) {
-			return;
-		}
+        if ( empty( $args['form_id'] ) ) {
+            return;
+        }
 
-		$form = new GetPaid_Payment_Form( (int) $args['form_id'] );
+        $form = new GetPaid_Payment_Form( (int) $args['form_id'] );
 
-		if ( ! $form->exists() ) {
-			return;
-		}
+        if ( ! $form->exists() ) {
+            return;
+        }
 
-		$form->set_earned( 0 );
-		$form->set_refunded( 0 );
-		$form->set_cancelled( 0 );
-		$form->set_failed( 0 );
-		$form->save();
+        $form->set_earned( 0 );
+        $form->set_refunded( 0 );
+        $form->set_cancelled( 0 );
+        $form->set_failed( 0 );
+        $form->save();
 
-		$this->show_success( __( 'Form stats reset successfully', 'invoicing' ) );
+        $this->show_success( __( 'Form stats reset successfully', 'invoicing' ) );
 
-		wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'form_id', 'getpaid-nonce' ) ) );
-		exit;
-	}
+        wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'form_id', 'getpaid-nonce' ) ) );
+        exit;
+    }
 
-	/**
+    /**
      * Sends a payment reminder to a customer.
-	 *
-	 * @param array $args
+     *
+     * @param array $args
      */
     public function send_customer_invoice( $args ) {
-		getpaid()->get( 'invoice_emails' )->user_invoice( new WPInv_Invoice( $args['invoice_id'] ), true );
-		wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'getpaid-nonce', 'invoice_id' ) ) );
-		exit;
-	}
+        getpaid()->get( 'invoice_emails' )->user_invoice( new WPInv_Invoice( $args['invoice_id'] ), true );
+        wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'getpaid-nonce', 'invoice_id' ) ) );
+        exit;
+    }
 
-	/**
+    /**
      * Sends a payment reminder to a customer.
-	 *
-	 * @param array $args
+     *
+     * @param array $args
      */
     public function send_customer_payment_reminder( $args ) {
-		$sent = getpaid()->get( 'invoice_emails' )->force_send_overdue_notice( new WPInv_Invoice( $args['invoice_id'] ) );
+        $sent = getpaid()->get( 'invoice_emails' )->force_send_overdue_notice( new WPInv_Invoice( $args['invoice_id'] ) );
 
-		if ( $sent ) {
-			$this->show_success( __( 'Payment reminder was successfully sent to the customer', 'invoicing' ) );
-		} else {
-			$this->show_error( __( 'Could not sent payment reminder to the customer', 'invoicing' ) );
-		}
+        if ( $sent ) {
+            $this->show_success( __( 'Payment reminder was successfully sent to the customer', 'invoicing' ) );
+        } else {
+            $this->show_error( __( 'Could not sent payment reminder to the customer', 'invoicing' ) );
+        }
 
-		wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'getpaid-nonce', 'invoice_id' ) ) );
-		exit;
-	}
+        wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'getpaid-nonce', 'invoice_id' ) ) );
+        exit;
+    }
 
-	/**
+    /**
      * Resets tax rates.
-	 *
+     *
      */
     public function admin_reset_tax_rates() {
 
-		update_option( 'wpinv_tax_rates', wpinv_get_data( 'tax-rates' ) );
-		wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'getpaid-nonce' ) ) );
-		exit;
+        update_option( 'wpinv_tax_rates', wpinv_get_data( 'tax-rates' ) );
+        wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'getpaid-nonce' ) ) );
+        exit;
 
-	}
+    }
 
-	/**
+    /**
      * Resets admin pages.
-	 *
+     *
      */
     public function admin_create_missing_pages() {
-		$installer = new GetPaid_Installer();
-		$installer->create_pages();
-		$this->show_success( __( 'GetPaid pages updated.', 'invoicing' ) );
-		wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'getpaid-nonce' ) ) );
-		exit;
-	}
-
-	/**
-	 * Refreshes the permalinks.
-	 */
-	public function admin_refresh_permalinks() {
-		flush_rewrite_rules();
-		$this->show_success( __( 'Permalinks refreshed.', 'invoicing' ) );
-		wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'getpaid-nonce' ) ) );
-		exit;
-	}
-
-	/**
+        $installer = new GetPaid_Installer();
+        $installer->create_pages();
+        $this->show_success( __( 'GetPaid pages updated.', 'invoicing' ) );
+        wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'getpaid-nonce' ) ) );
+        exit;
+    }
+
+    /**
+     * Refreshes the permalinks.
+     */
+    public function admin_refresh_permalinks() {
+        flush_rewrite_rules();
+        $this->show_success( __( 'Permalinks refreshed.', 'invoicing' ) );
+        wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'getpaid-nonce' ) ) );
+        exit;
+    }
+
+    /**
      * Creates an missing admin tables.
-	 *
+     *
      */
     public function admin_create_missing_tables() {
-		global $wpdb;
-		$installer = new GetPaid_Installer();
+        global $wpdb;
+        $installer = new GetPaid_Installer();
 
-		if ( $wpdb->get_var( "SHOW TABLES LIKE '{$wpdb->prefix}wpinv_subscriptions'" ) != $wpdb->prefix . 'wpinv_subscriptions' ) {
-			$installer->create_subscriptions_table();
+        if ( $wpdb->get_var( "SHOW TABLES LIKE '{$wpdb->prefix}wpinv_subscriptions'" ) != $wpdb->prefix . 'wpinv_subscriptions' ) {
+            $installer->create_subscriptions_table();
 
-			if ( $wpdb->last_error !== '' ) {
-				$this->show_error( __( 'Your GetPaid tables have been updated:', 'invoicing' ) . ' ' . $wpdb->last_error );
-			}
-		}
+            if ( $wpdb->last_error !== '' ) {
+                $this->show_error( __( 'Your GetPaid tables have been updated:', 'invoicing' ) . ' ' . $wpdb->last_error );
+            }
+        }
 
-		if ( $wpdb->get_var( "SHOW TABLES LIKE '{$wpdb->prefix}getpaid_invoices'" ) != $wpdb->prefix . 'getpaid_invoices' ) {
-			$installer->create_invoices_table();
+        if ( $wpdb->get_var( "SHOW TABLES LIKE '{$wpdb->prefix}getpaid_invoices'" ) != $wpdb->prefix . 'getpaid_invoices' ) {
+            $installer->create_invoices_table();
 
-			if ( '' !== $wpdb->last_error ) {
-				$this->show_error( __( 'Your GetPaid tables have been updated:', 'invoicing' ) . ' ' . $wpdb->last_error );
-			}
-		}
+            if ( '' !== $wpdb->last_error ) {
+                $this->show_error( __( 'Your GetPaid tables have been updated:', 'invoicing' ) . ' ' . $wpdb->last_error );
+            }
+        }
 
-		if ( $wpdb->get_var( "SHOW TABLES LIKE '{$wpdb->prefix}getpaid_invoice_items'" ) != $wpdb->prefix . 'getpaid_invoice_items' ) {
-			$installer->create_invoice_items_table();
+        if ( $wpdb->get_var( "SHOW TABLES LIKE '{$wpdb->prefix}getpaid_invoice_items'" ) != $wpdb->prefix . 'getpaid_invoice_items' ) {
+            $installer->create_invoice_items_table();
 
-			if ( '' !== $wpdb->last_error ) {
-				$this->show_error( __( 'Your GetPaid tables have been updated:', 'invoicing' ) . ' ' . $wpdb->last_error );
-			}
-		}
+            if ( '' !== $wpdb->last_error ) {
+                $this->show_error( __( 'Your GetPaid tables have been updated:', 'invoicing' ) . ' ' . $wpdb->last_error );
+            }
+        }
 
-		if ( ! $this->has_notices() ) {
-			$this->show_success( __( 'Your GetPaid tables have been updated.', 'invoicing' ) );
-		}
+        if ( ! $this->has_notices() ) {
+            $this->show_success( __( 'Your GetPaid tables have been updated.', 'invoicing' ) );
+        }
 
-		wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'getpaid-nonce' ) ) );
-		exit;
-	}
+        wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'getpaid-nonce' ) ) );
+        exit;
+    }
 
-	/**
+    /**
      * Migrates old invoices to the new database tables.
-	 *
+     *
      */
     public function admin_migrate_old_invoices() {
 
-		// Migrate the invoices.
-		$installer = new GetPaid_Installer();
-		$installer->migrate_old_invoices();
+        // Migrate the invoices.
+        $installer = new GetPaid_Installer();
+        $installer->migrate_old_invoices();
 
-		// Show an admin message.
-		$this->show_success( __( 'Your invoices have been migrated.', 'invoicing' ) );
+        // Show an admin message.
+        $this->show_success( __( 'Your invoices have been migrated.', 'invoicing' ) );
 
-		// Redirect the admin.
-		wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'getpaid-nonce' ) ) );
-		exit;
+        // Redirect the admin.
+        wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'getpaid-nonce' ) ) );
+        exit;
 
-	}
+    }
 
-	/**
+    /**
      * Download customers.
-	 *
+     *
      */
     public function admin_download_customers() {
-		global $wpdb;
-
-		$output = fopen( 'php://output', 'w' );
-
-		if ( false === $output ) {
-			wp_die( esc_html__( 'Unsupported server', 'invoicing' ), 500 );
-		}
+        global $wpdb;
 
-		header( 'Content-Type:text/csv' );
-		header( 'Content-Disposition:attachment;filename=customers.csv' );
+        $output = fopen( 'php://output', 'w' );
 
-		$post_types = '';
+        if ( false === $output ) {
+            wp_die( esc_html__( 'Unsupported server', 'invoicing' ), 500 );
+        }
 
-		foreach ( array_keys( getpaid_get_invoice_post_types() ) as $post_type ) {
-			$post_types .= $wpdb->prepare( 'post_type=%s OR ', $post_type );
-		}
+        header( 'Content-Type:text/csv' );
+        header( 'Content-Disposition:attachment;filename=customers.csv' );
 
-		$post_types = rtrim( $post_types, ' OR' );
+        $post_types = '';
 
-		$customers = $wpdb->get_col( "SELECT DISTINCT( post_author ) FROM $wpdb->posts WHERE $post_types" );
+        foreach ( array_keys( getpaid_get_invoice_post_types() ) as $post_type ) {
+            $post_types .= $wpdb->prepare( 'post_type=%s OR ', $post_type );
+        }
 
-		$columns = array(
-			'name'       => __( 'Name', 'invoicing' ),
-			'email'      => __( 'Email', 'invoicing' ),
-			'country'    => __( 'Country', 'invoicing' ),
-			'state'      => __( 'State', 'invoicing' ),
-			'city'       => __( 'City', 'invoicing' ),
-			'zip'        => __( 'ZIP', 'invoicing' ),
-			'address'    => __( 'Address', 'invoicing' ),
-			'phone'      => __( 'Phone', 'invoicing' ),
-			'company'    => __( 'Company', 'invoicing' ),
-			'company_id' => __( 'Company ID', 'invoicing' ),
-			'invoices'   => __( 'Invoices', 'invoicing' ),
-			'total_raw'  => __( 'Total Spend', 'invoicing' ),
-			'signup'     => __( 'Date created', 'invoicing' ),
-		);
+        $post_types = rtrim( $post_types, ' OR' );
+
+        $customers = $wpdb->get_col( "SELECT DISTINCT( post_author ) FROM $wpdb->posts WHERE $post_types" );
+
+        $columns = array(
+            'name'       => __( 'Name', 'invoicing' ),
+            'email'      => __( 'Email', 'invoicing' ),
+            'country'    => __( 'Country', 'invoicing' ),
+            'state'      => __( 'State', 'invoicing' ),
+            'city'       => __( 'City', 'invoicing' ),
+            'zip'        => __( 'ZIP', 'invoicing' ),
+            'address'    => __( 'Address', 'invoicing' ),
+            'phone'      => __( 'Phone', 'invoicing' ),
+            'company'    => __( 'Company', 'invoicing' ),
+            'company_id' => __( 'Company ID', 'invoicing' ),
+            'invoices'   => __( 'Invoices', 'invoicing' ),
+            'total_raw'  => __( 'Total Spend', 'invoicing' ),
+            'signup'     => __( 'Date created', 'invoicing' ),
+        );
 
-		// Output the csv column headers.
-		fputcsv( $output, array_values( $columns ) );
+        // Output the csv column headers.
+        fputcsv( $output, array_values( $columns ) );
 
-		// Loop through
-		$table = new WPInv_Customers_Table();
-		foreach ( $customers as $customer_id ) {
+        // Loop through
+        $table = new WPInv_Customers_Table();
+        foreach ( $customers as $customer_id ) {
 
-			$user = get_user_by( 'id', $customer_id );
-			$row  = array();
-			if ( empty( $user ) ) {
-				continue;
-			}
+            $user = get_user_by( 'id', $customer_id );
+            $row  = array();
+            if ( empty( $user ) ) {
+                continue;
+            }
 
-			foreach ( array_keys( $columns ) as $column ) {
+            foreach ( array_keys( $columns ) as $column ) {
 
-				$method = 'column_' . $column;
+                $method = 'column_' . $column;
 
-				if ( 'name' == $column ) {
-					$value = esc_html( $user->display_name );
-				} elseif ( 'email' == $column ) {
-					$value = sanitize_email( $user->user_email );
-				} elseif ( is_callable( array( $table, $method ) ) ) {
-					$value = wp_strip_all_tags( $table->$method( $user ) );
-				}
+                if ( 'name' == $column ) {
+                    $value = esc_html( $user->display_name );
+                } elseif ( 'email' == $column ) {
+                    $value = sanitize_email( $user->user_email );
+                } elseif ( is_callable( array( $table, $method ) ) ) {
+                    $value = wp_strip_all_tags( $table->$method( $user ) );
+                }
 
-				if ( empty( $value ) ) {
-					$value = esc_html( get_user_meta( $user->ID, '_wpinv_' . $column, true ) );
-				}
+                if ( empty( $value ) ) {
+                    $value = esc_html( get_user_meta( $user->ID, '_wpinv_' . $column, true ) );
+                }
 
-				$row[] = $value;
+                $row[] = $value;
 
-			}
+            }
 
-			fputcsv( $output, $row );
-		}
+            fputcsv( $output, $row );
+        }
 
-		fclose( $output );
-		exit;
+        fclose( $output );
+        exit;
 
-	}
+    }
 
-	/**
+    /**
      * Installs a plugin.
-	 *
-	 * @param array $data
+     *
+     * @param array $data
      */
     public function admin_install_plugin( $data ) {
 
-		if ( ! empty( $data['plugins'] ) ) {
-			include_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
-			wp_cache_flush();
+        if ( ! empty( $data['plugins'] ) ) {
+            include_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
+            wp_cache_flush();
 
-			foreach ( $data['plugins'] as $slug => $file ) {
-				$plugin_zip = esc_url( 'https://downloads.wordpress.org/plugin/' . $slug . '.latest-stable.zip' );
-				$upgrader   = new Plugin_Upgrader( new Automatic_Upgrader_Skin() );
-				$installed  = $upgrader->install( $plugin_zip );
+            foreach ( $data['plugins'] as $slug => $file ) {
+                $plugin_zip = esc_url( 'https://downloads.wordpress.org/plugin/' . $slug . '.latest-stable.zip' );
+                $upgrader   = new Plugin_Upgrader( new Automatic_Upgrader_Skin() );
+                $installed  = $upgrader->install( $plugin_zip );
 
-				if ( ! is_wp_error( $installed ) && $installed ) {
-					activate_plugin( $file, '', false, true );
-				} else {
-					wpinv_error_log( $upgrader->skin->get_upgrade_messages(), false );
-				}
+                if ( ! is_wp_error( $installed ) && $installed ) {
+                    activate_plugin( $file, '', false, true );
+                } else {
+                    wpinv_error_log( $upgrader->skin->get_upgrade_messages(), false );
+                }
 }
 }
 
-		$redirect = isset( $data['redirect'] ) ? esc_url_raw( $data['redirect'] ) : admin_url( 'plugins.php' );
-		wp_safe_redirect( $redirect );
-		exit;
+        $redirect = isset( $data['redirect'] ) ? esc_url_raw( $data['redirect'] ) : admin_url( 'plugins.php' );
+        wp_safe_redirect( $redirect );
+        exit;
 
-	}
+    }
 
-	/**
+    /**
      * Connects a gateway.
-	 *
-	 * @param array $data
+     *
+     * @param array $data
      */
     public function admin_connect_gateway( $data ) {
 
-		if ( ! empty( $data['plugin'] ) ) {
+        if ( ! empty( $data['plugin'] ) ) {
 
-			$gateway     = sanitize_key( $data['plugin'] );
-			$connect_url = apply_filters( "getpaid_get_{$gateway}_connect_url", false, $data );
+            $gateway     = sanitize_key( $data['plugin'] );
+            $connect_url = apply_filters( "getpaid_get_{$gateway}_connect_url", false, $data );
 
-			if ( ! empty( $connect_url ) ) {
-				wp_redirect( $connect_url );
-				exit;
-			}
+            if ( ! empty( $connect_url ) ) {
+                wp_redirect( $connect_url );
+                exit;
+            }
 
-			if ( 'stripe' == $data['plugin'] ) {
-				require_once ABSPATH . 'wp-admin/includes/plugin.php';
-				include_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
-				wp_cache_flush();
+            if ( 'stripe' == $data['plugin'] ) {
+                require_once ABSPATH . 'wp-admin/includes/plugin.php';
+                include_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
+                wp_cache_flush();
 
-				if ( ! array_key_exists( 'getpaid-stripe-payments/getpaid-stripe-payments.php', get_plugins() ) ) {
-					$plugin_zip = esc_url( 'https://downloads.wordpress.org/plugin/getpaid-stripe-payments.latest-stable.zip' );
-					$upgrader   = new Plugin_Upgrader( new Automatic_Upgrader_Skin() );
-					$upgrader->install( $plugin_zip );
-				}
+                if ( ! array_key_exists( 'getpaid-stripe-payments/getpaid-stripe-payments.php', get_plugins() ) ) {
+                    $plugin_zip = esc_url( 'https://downloads.wordpress.org/plugin/getpaid-stripe-payments.latest-stable.zip' );
+                    $upgrader   = new Plugin_Upgrader( new Automatic_Upgrader_Skin() );
+                    $upgrader->install( $plugin_zip );
+                }
 
-				activate_plugin( 'getpaid-stripe-payments/getpaid-stripe-payments.php', '', false, true );
-			}
+                activate_plugin( 'getpaid-stripe-payments/getpaid-stripe-payments.php', '', false, true );
+            }
 
-			$connect_url = apply_filters( "getpaid_get_{$gateway}_connect_url", false, $data );
-			if ( ! empty( $connect_url ) ) {
-				wp_redirect( $connect_url );
-				exit;
-			}
+            $connect_url = apply_filters( "getpaid_get_{$gateway}_connect_url", false, $data );
+            if ( ! empty( $connect_url ) ) {
+                wp_redirect( $connect_url );
+                exit;
+            }
 }
 
-		$redirect = isset( $data['redirect'] ) ? esc_url_raw( urldecode( $data['redirect'] ) ) : admin_url( 'admin.php?page=wpinv-settings&tab=gateways' );
-		wp_safe_redirect( $redirect );
-		exit;
+        $redirect = isset( $data['redirect'] ) ? esc_url_raw( urldecode( $data['redirect'] ) ) : admin_url( 'admin.php?page=wpinv-settings&tab=gateways' );
+        wp_safe_redirect( $redirect );
+        exit;
 
-	}
+    }
 
-	/**
+    /**
      * Recalculates discounts.
-	 *
+     *
      */
     public function admin_recalculate_discounts() {
-		global $wpdb;
+        global $wpdb;
 
-		// Fetch all invoices that have discount codes.
-		$table    = $wpdb->prefix . 'getpaid_invoices';
-		$invoices = $wpdb->get_col( "SELECT `post_id` FROM `$table` WHERE `discount` = 0 && `discount_code` <> ''" );
+        // Fetch all invoices that have discount codes.
+        $table    = $wpdb->prefix . 'getpaid_invoices';
+        $invoices = $wpdb->get_col( "SELECT `post_id` FROM `$table` WHERE `discount` = 0 && `discount_code` <> ''" );
 
-		foreach ( $invoices as $invoice ) {
+        foreach ( $invoices as $invoice ) {
 
-			$invoice = new WPInv_Invoice( $invoice );
+            $invoice = new WPInv_Invoice( $invoice );
 
-			if ( ! $invoice->exists() ) {
-				continue;
-			}
+            if ( ! $invoice->exists() ) {
+                continue;
+            }
 
-			// Abort if the discount does not exist or does not apply here.
-			$discount = new WPInv_Discount( $invoice->get_discount_code() );
-			if ( ! $discount->exists() ) {
-				continue;
-			}
+            // Abort if the discount does not exist or does not apply here.
+            $discount = new WPInv_Discount( $invoice->get_discount_code() );
+            if ( ! $discount->exists() ) {
+                continue;
+            }
 
-			$invoice->add_discount( getpaid_calculate_invoice_discount( $invoice, $discount ) );
-			$invoice->recalculate_total();
+            $invoice->add_discount( getpaid_calculate_invoice_discount( $invoice, $discount ) );
+            $invoice->recalculate_total();
 
-			if ( $invoice->get_total_discount() > 0 ) {
-				$invoice->save();
-			}
+            if ( $invoice->get_total_discount() > 0 ) {
+                $invoice->save();
+            }
 }
 
-		// Show an admin message.
-		$this->show_success( __( 'Discounts have been recalculated.', 'invoicing' ) );
+        // Show an admin message.
+        $this->show_success( __( 'Discounts have been recalculated.', 'invoicing' ) );
 
-		// Redirect the admin.
-		wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'getpaid-nonce' ) ) );
-		exit;
+        // Redirect the admin.
+        wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'getpaid-nonce' ) ) );
+        exit;
 
-	}
+    }
 
     /**
-	 * Returns an array of admin notices.
-	 *
-	 * @since       1.0.19
+     * Returns an array of admin notices.
+     *
+     * @since       1.0.19
      * @return array
-	 */
-	public function get_notices() {
-		$notices = get_option( 'wpinv_admin_notices' );
+     */
+    public function get_notices() {
+        $notices = get_option( 'wpinv_admin_notices' );
         return is_array( $notices ) ? $notices : array();
-	}
+    }
 
-	/**
-	 * Checks if we have any admin notices.
-	 *
-	 * @since       2.0.4
+    /**
+     * Checks if we have any admin notices.
+     *
+     * @since       2.0.4
      * @return array
-	 */
-	public function has_notices() {
-		return count( $this->get_notices() ) > 0;
-	}
-
-	/**
-	 * Clears all admin notices
-	 *
-	 * @access      public
-	 * @since       1.0.19
-	 */
-	public function clear_notices() {
-		delete_option( 'wpinv_admin_notices' );
-	}
-
-	/**
-	 * Saves a new admin notice
-	 *
-	 * @access      public
-	 * @since       1.0.19
-	 */
-	public function save_notice( $type, $message ) {
-		$notices = $this->get_notices();
-
-		if ( empty( $notices[ $type ] ) || ! is_array( $notices[ $type ] ) ) {
-			$notices[ $type ] = array();
-		}
-
-		$notices[ $type ][] = $message;
-
-		update_option( 'wpinv_admin_notices', $notices );
-	}
-
-	/**
-	 * Displays a success notice
-	 *
-	 * @param       string $msg The message to qeue.
-	 * @access      public
-	 * @since       1.0.19
-	 */
-	public function show_success( $msg ) {
-		$this->save_notice( 'success', $msg );
-	}
-
-	/**
-	 * Displays a error notice
-	 *
-	 * @access      public
-	 * @param       string $msg The message to qeue.
-	 * @since       1.0.19
-	 */
-	public function show_error( $msg ) {
-		$this->save_notice( 'error', $msg );
-	}
-
-	/**
-	 * Displays a warning notice
-	 *
-	 * @access      public
-	 * @param       string $msg The message to qeue.
-	 * @since       1.0.19
-	 */
-	public function show_warning( $msg ) {
-		$this->save_notice( 'warning', $msg );
-	}
-
-	/**
-	 * Displays a info notice
-	 *
-	 * @access      public
-	 * @param       string $msg The message to qeue.
-	 * @since       1.0.19
-	 */
-	public function show_info( $msg ) {
-		$this->save_notice( 'info', $msg );
-	}
-
-	/**
-	 * Show notices
-	 *
-	 * @access      public
-	 * @since       1.0.19
-	 */
-	public function show_notices() {
+     */
+    public function has_notices() {
+        return count( $this->get_notices() ) > 0;
+    }
+
+    /**
+     * Clears all admin notices
+     *
+     * @access      public
+     * @since       1.0.19
+     */
+    public function clear_notices() {
+        delete_option( 'wpinv_admin_notices' );
+    }
+
+    /**
+     * Saves a new admin notice
+     *
+     * @access      public
+     * @since       1.0.19
+     */
+    public function save_notice( $type, $message ) {
+        $notices = $this->get_notices();
+
+        if ( empty( $notices[ $type ] ) || ! is_array( $notices[ $type ] ) ) {
+            $notices[ $type ] = array();
+        }
+
+        $notices[ $type ][] = $message;
+
+        update_option( 'wpinv_admin_notices', $notices );
+    }
+
+    /**
+     * Displays a success notice
+     *
+     * @param       string $msg The message to qeue.
+     * @access      public
+     * @since       1.0.19
+     */
+    public function show_success( $msg ) {
+        $this->save_notice( 'success', $msg );
+    }
+
+    /**
+     * Displays a error notice
+     *
+     * @access      public
+     * @param       string $msg The message to qeue.
+     * @since       1.0.19
+     */
+    public function show_error( $msg ) {
+        $this->save_notice( 'error', $msg );
+    }
+
+    /**
+     * Displays a warning notice
+     *
+     * @access      public
+     * @param       string $msg The message to qeue.
+     * @since       1.0.19
+     */
+    public function show_warning( $msg ) {
+        $this->save_notice( 'warning', $msg );
+    }
+
+    /**
+     * Displays a info notice
+     *
+     * @access      public
+     * @param       string $msg The message to qeue.
+     * @since       1.0.19
+     */
+    public function show_info( $msg ) {
+        $this->save_notice( 'info', $msg );
+    }
+
+    /**
+     * Show notices
+     *
+     * @access      public
+     * @since       1.0.19
+     */
+    public function show_notices() {
 
         $notices = $this->get_notices();
         $this->clear_notices();
 
-		foreach ( $notices as $type => $messages ) {
+        foreach ( $notices as $type => $messages ) {
 
-			if ( ! is_array( $messages ) ) {
-				continue;
-			}
+            if ( ! is_array( $messages ) ) {
+                continue;
+            }
 
             $type  = esc_attr( $type );
-			foreach ( $messages as $message ) {
-				echo wp_kses_post( "<div class='notice notice-$type is-dismissible'><p>$message</p></div>" );
+            foreach ( $messages as $message ) {
+                echo wp_kses_post( "<div class='notice notice-$type is-dismissible'><p>$message</p></div>" );
             }
 }
 
-		foreach ( array( 'checkout_page', 'invoice_history_page', 'success_page', 'failure_page', 'invoice_subscription_page' ) as $page ) {
-
-			if ( ! is_numeric( wpinv_get_option( $page, false ) ) ) {
-				$url     = wp_nonce_url(
-					add_query_arg( 'getpaid-admin-action', 'create_missing_pages' ),
-					'getpaid-nonce',
-					'getpaid-nonce'
-				);
-				$message  = __( 'Some GetPaid pages are missing. To use GetPaid without any issues, click the button below to generate the missing pages.', 'invoicing' );
-				$message2 = __( 'Generate Pages', 'invoicing' );
-				echo wp_kses_post( "<div class='notice notice-warning is-dismissible'><p>$message<br><br><a href='$url' class='button button-primary'>$message2</a></p></div>" );
-				break;
-			}
+        foreach ( array( 'checkout_page', 'invoice_history_page', 'success_page', 'failure_page', 'invoice_subscription_page' ) as $page ) {
+
+            if ( ! is_numeric( wpinv_get_option( $page, false ) ) ) {
+                $url     = wp_nonce_url(
+                    add_query_arg( 'getpaid-admin-action', 'create_missing_pages' ),
+                    'getpaid-nonce',
+                    'getpaid-nonce'
+                );
+                $message  = __( 'Some GetPaid pages are missing. To use GetPaid without any issues, click the button below to generate the missing pages.', 'invoicing' );
+                $message2 = __( 'Generate Pages', 'invoicing' );
+                echo wp_kses_post( "<div class='notice notice-warning is-dismissible'><p>$message<br><br><a href='$url' class='button button-primary'>$message2</a></p></div>" );
+                break;
+            }
 }
 
-	}
+    }
 
 }

Spacing +294 added lines, -294 removed lines

@@ -4,7 +4,7 @@ 
  *
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * The main admin class.
@@ -39,11 +39,11 @@ 
 	 */
 	public function __construct() {
 
-        $this->admin_path  = plugin_dir_path( __FILE__ );
-		$this->admin_url   = plugins_url( '/', __FILE__ );
+        $this->admin_path = plugin_dir_path(__FILE__);
+		$this->admin_url   = plugins_url('/', __FILE__);
 		$this->reports     = new GetPaid_Reports();
 
-        if ( is_admin() ) {
+        if (is_admin()) {
 			$this->init_admin_hooks();
         }
 
@@ -54,35 +54,35 @@ 
 	 *
 	 */
 	private function init_admin_hooks() {
-        add_action( 'admin_enqueue_scripts', array( $this, 'enqeue_scripts' ), 9 );
-        add_filter( 'admin_body_class', array( $this, 'admin_body_class' ) );
-        add_action( 'admin_init', array( $this, 'init_ayecode_connect_helper' ) );
-        add_action( 'admin_init', array( $this, 'activation_redirect' ) );
-        add_action( 'admin_init', array( $this, 'maybe_do_admin_action' ) );
-		add_action( 'admin_notices', array( $this, 'show_notices' ) );
-		add_action( 'getpaid_authenticated_admin_action_rate_plugin', array( $this, 'redirect_to_wordpress_rating_page' ) );
-		add_action( 'getpaid_authenticated_admin_action_duplicate_form', array( $this, 'duplicate_payment_form' ) );
-		add_action( 'getpaid_authenticated_admin_action_reset_form_stats', array( $this, 'reset_form_stats' ) );
-		add_action( 'getpaid_authenticated_admin_action_duplicate_invoice', array( $this, 'duplicate_invoice' ) );
-		add_action( 'getpaid_authenticated_admin_action_send_invoice', array( $this, 'send_customer_invoice' ) );
-		add_action( 'getpaid_authenticated_admin_action_send_invoice_reminder', array( $this, 'send_customer_payment_reminder' ) );
-        add_action( 'getpaid_authenticated_admin_action_reset_tax_rates', array( $this, 'admin_reset_tax_rates' ) );
-		add_action( 'getpaid_authenticated_admin_action_create_missing_pages', array( $this, 'admin_create_missing_pages' ) );
-		add_action( 'getpaid_authenticated_admin_action_refresh_permalinks', array( $this, 'admin_refresh_permalinks' ) );
-		add_action( 'getpaid_authenticated_admin_action_create_missing_tables', array( $this, 'admin_create_missing_tables' ) );
-		add_action( 'getpaid_authenticated_admin_action_migrate_old_invoices', array( $this, 'admin_migrate_old_invoices' ) );
-		add_action( 'getpaid_authenticated_admin_action_download_customers', array( $this, 'admin_download_customers' ) );
-		add_action( 'getpaid_authenticated_admin_action_recalculate_discounts', array( $this, 'admin_recalculate_discounts' ) );
-		add_action( 'getpaid_authenticated_admin_action_install_plugin', array( $this, 'admin_install_plugin' ) );
-		add_action( 'getpaid_authenticated_admin_action_connect_gateway', array( $this, 'admin_connect_gateway' ) );
-		add_filter( 'admin_footer_text', array( $this, 'admin_footer_text' ) );
-		do_action( 'getpaid_init_admin_hooks', $this );
+        add_action('admin_enqueue_scripts', array($this, 'enqeue_scripts'), 9);
+        add_filter('admin_body_class', array($this, 'admin_body_class'));
+        add_action('admin_init', array($this, 'init_ayecode_connect_helper'));
+        add_action('admin_init', array($this, 'activation_redirect'));
+        add_action('admin_init', array($this, 'maybe_do_admin_action'));
+		add_action('admin_notices', array($this, 'show_notices'));
+		add_action('getpaid_authenticated_admin_action_rate_plugin', array($this, 'redirect_to_wordpress_rating_page'));
+		add_action('getpaid_authenticated_admin_action_duplicate_form', array($this, 'duplicate_payment_form'));
+		add_action('getpaid_authenticated_admin_action_reset_form_stats', array($this, 'reset_form_stats'));
+		add_action('getpaid_authenticated_admin_action_duplicate_invoice', array($this, 'duplicate_invoice'));
+		add_action('getpaid_authenticated_admin_action_send_invoice', array($this, 'send_customer_invoice'));
+		add_action('getpaid_authenticated_admin_action_send_invoice_reminder', array($this, 'send_customer_payment_reminder'));
+        add_action('getpaid_authenticated_admin_action_reset_tax_rates', array($this, 'admin_reset_tax_rates'));
+		add_action('getpaid_authenticated_admin_action_create_missing_pages', array($this, 'admin_create_missing_pages'));
+		add_action('getpaid_authenticated_admin_action_refresh_permalinks', array($this, 'admin_refresh_permalinks'));
+		add_action('getpaid_authenticated_admin_action_create_missing_tables', array($this, 'admin_create_missing_tables'));
+		add_action('getpaid_authenticated_admin_action_migrate_old_invoices', array($this, 'admin_migrate_old_invoices'));
+		add_action('getpaid_authenticated_admin_action_download_customers', array($this, 'admin_download_customers'));
+		add_action('getpaid_authenticated_admin_action_recalculate_discounts', array($this, 'admin_recalculate_discounts'));
+		add_action('getpaid_authenticated_admin_action_install_plugin', array($this, 'admin_install_plugin'));
+		add_action('getpaid_authenticated_admin_action_connect_gateway', array($this, 'admin_connect_gateway'));
+		add_filter('admin_footer_text', array($this, 'admin_footer_text'));
+		do_action('getpaid_init_admin_hooks', $this);
 
 		// Setup/welcome
-		if ( ! empty( $_GET['page'] ) ) {
-			switch ( sanitize_text_field( $_GET['page'] ) ) {
+		if (!empty($_GET['page'])) {
+			switch (sanitize_text_field($_GET['page'])) {
 				case 'gp-setup':
-					include_once dirname( __FILE__ ) . '/class-getpaid-admin-setup-wizard.php';
+					include_once dirname(__FILE__) . '/class-getpaid-admin-setup-wizard.php';
 					break;
 			}
 		}
@@ -96,37 +96,37 @@ 
 	public function enqeue_scripts() {
         global $current_screen, $pagenow;
 
-		$page    = isset( $_GET['page'] ) ? sanitize_text_field( $_GET['page'] ) : '';
+		$page    = isset($_GET['page']) ? sanitize_text_field($_GET['page']) : '';
 		$editing = $pagenow == 'post.php' || $pagenow == 'post-new.php';
 
-        if ( ! empty( $current_screen->post_type ) ) {
+        if (!empty($current_screen->post_type)) {
 			$page = $current_screen->post_type;
         }
 
         // General styles.
-        if ( false !== stripos( $page, 'wpi' ) || false !== stripos( $page, 'getpaid' ) || 'gp-setup' == $page || false !== stripos( $page, 'geodir-tickets' ) ) {
+        if (false !== stripos($page, 'wpi') || false !== stripos($page, 'getpaid') || 'gp-setup' == $page || false !== stripos($page, 'geodir-tickets')) {
 
             // Styles.
-            $version = filemtime( WPINV_PLUGIN_DIR . 'assets/css/admin.css' );
-            wp_enqueue_style( 'wpinv_admin_style', WPINV_PLUGIN_URL . 'assets/css/admin.css', array( 'wp-color-picker' ), $version );
-            wp_enqueue_style( 'select2', WPINV_PLUGIN_URL . 'assets/css/select2/select2.min.css', array(), '4.0.13', 'all' );
+            $version = filemtime(WPINV_PLUGIN_DIR . 'assets/css/admin.css');
+            wp_enqueue_style('wpinv_admin_style', WPINV_PLUGIN_URL . 'assets/css/admin.css', array('wp-color-picker'), $version);
+            wp_enqueue_style('select2', WPINV_PLUGIN_URL . 'assets/css/select2/select2.min.css', array(), '4.0.13', 'all');
 
             // Scripts.
-            wp_enqueue_script( 'select2', WPINV_PLUGIN_URL . 'assets/js/select2/select2.full.min.js', array( 'jquery' ), WPINV_VERSION );
+            wp_enqueue_script('select2', WPINV_PLUGIN_URL . 'assets/js/select2/select2.full.min.js', array('jquery'), WPINV_VERSION);
 
-            $version = filemtime( WPINV_PLUGIN_DIR . 'assets/js/admin.js' );
-            wp_enqueue_script( 'wpinv-admin-script', WPINV_PLUGIN_URL . 'assets/js/admin.js', array( 'jquery', 'wp-color-picker', 'jquery-ui-tooltip' ), $version );
-            wp_localize_script( 'wpinv-admin-script', 'WPInv_Admin', apply_filters( 'wpinv_admin_js_localize', $this->get_admin_i18() ) );
+            $version = filemtime(WPINV_PLUGIN_DIR . 'assets/js/admin.js');
+            wp_enqueue_script('wpinv-admin-script', WPINV_PLUGIN_URL . 'assets/js/admin.js', array('jquery', 'wp-color-picker', 'jquery-ui-tooltip'), $version);
+            wp_localize_script('wpinv-admin-script', 'WPInv_Admin', apply_filters('wpinv_admin_js_localize', $this->get_admin_i18()));
 
         }
 
         // Payment form scripts.
-		if ( 'wpi_payment_form' == $page && $editing ) {
+		if ('wpi_payment_form' == $page && $editing) {
             $this->load_payment_form_scripts();
         }
 
-		if ( $page == 'wpinv-subscriptions' ) {
-			wp_enqueue_script( 'postbox' );
+		if ($page == 'wpinv-subscriptions') {
+			wp_enqueue_script('postbox');
 		}
 
     }
@@ -139,31 +139,31 @@ 
         global $post;
 
 		$date_range = array(
-			'period' => isset( $_GET['date_range'] ) ? sanitize_text_field( $_GET['date_range'] ) : '7_days',
+			'period' => isset($_GET['date_range']) ? sanitize_text_field($_GET['date_range']) : '7_days',
 		);
 
-		if ( $date_range['period'] == 'custom' ) {
+		if ($date_range['period'] == 'custom') {
 
-			if ( isset( $_GET['from'] ) ) {
-				$date_range['after'] = date( 'Y-m-d', strtotime( sanitize_text_field( $_GET['from'] ), current_time( 'timestamp' ) ) - DAY_IN_SECONDS );
+			if (isset($_GET['from'])) {
+				$date_range['after'] = date('Y-m-d', strtotime(sanitize_text_field($_GET['from']), current_time('timestamp')) - DAY_IN_SECONDS);
 			}
 
-			if ( isset( $_GET['to'] ) ) {
-				$date_range['before'] = date( 'Y-m-d', strtotime( sanitize_text_field( $_GET['to'] ), current_time( 'timestamp' ) ) + DAY_IN_SECONDS );
+			if (isset($_GET['to'])) {
+				$date_range['before'] = date('Y-m-d', strtotime(sanitize_text_field($_GET['to']), current_time('timestamp')) + DAY_IN_SECONDS);
 			}
 }
 
         $i18n = array(
-            'ajax_url'                  => admin_url( 'admin-ajax.php' ),
-            'post_ID'                   => isset( $post->ID ) ? $post->ID : '',
-			'wpinv_nonce'               => wp_create_nonce( 'wpinv-nonce' ),
-			'rest_nonce'                => wp_create_nonce( 'wp_rest' ),
-			'rest_root'                 => esc_url_raw( rest_url() ),
+            'ajax_url'                  => admin_url('admin-ajax.php'),
+            'post_ID'                   => isset($post->ID) ? $post->ID : '',
+			'wpinv_nonce'               => wp_create_nonce('wpinv-nonce'),
+			'rest_nonce'                => wp_create_nonce('wp_rest'),
+			'rest_root'                 => esc_url_raw(rest_url()),
 			'date_range'                => $date_range,
-            'add_invoice_note_nonce'    => wp_create_nonce( 'add-invoice-note' ),
-            'delete_invoice_note_nonce' => wp_create_nonce( 'delete-invoice-note' ),
-            'invoice_item_nonce'        => wp_create_nonce( 'invoice-item' ),
-            'billing_details_nonce'     => wp_create_nonce( 'get-billing-details' ),
+            'add_invoice_note_nonce'    => wp_create_nonce('add-invoice-note'),
+            'delete_invoice_note_nonce' => wp_create_nonce('delete-invoice-note'),
+            'invoice_item_nonce'        => wp_create_nonce('invoice-item'),
+            'billing_details_nonce'     => wp_create_nonce('get-billing-details'),
             'tax'                       => wpinv_tax_amount(),
             'discount'                  => 0,
 			'currency_symbol'           => wpinv_currency_symbol(),
@@ -172,39 +172,39 @@ 
             'thousand_sep'              => wpinv_thousands_separator(),
             'decimal_sep'               => wpinv_decimal_separator(),
             'decimals'                  => wpinv_decimals(),
-            'save_invoice'              => __( 'Save Invoice', 'invoicing' ),
-            'status_publish'            => wpinv_status_nicename( 'publish' ),
-            'status_pending'            => wpinv_status_nicename( 'wpi-pending' ),
-            'delete_tax_rate'           => __( 'Are you sure you wish to delete this tax rate?', 'invoicing' ),
-            'status_pending'            => wpinv_status_nicename( 'wpi-pending' ),
-            'FillBillingDetails'        => __( 'Fill the user\'s billing information? This will remove any currently entered billing information', 'invoicing' ),
-            'confirmCalcTotals'         => __( 'Recalculate totals? This will recalculate totals based on the user billing country. If no billing country is set it will use the base country.', 'invoicing' ),
-            'AreYouSure'                => __( 'Are you sure?', 'invoicing' ),
-            'errDeleteItem'             => __( 'This item is in use! Before delete this item, you need to delete all the invoice(s) using this item.', 'invoicing' ),
-            'delete_subscription'       => __( 'Are you sure you want to delete this subscription?', 'invoicing' ),
-            'action_edit'               => __( 'Edit', 'invoicing' ),
-            'action_cancel'             => __( 'Cancel', 'invoicing' ),
-            'item_description'          => __( 'Item Description', 'invoicing' ),
-            'invoice_description'       => __( 'Invoice Description', 'invoicing' ),
-            'discount_description'      => __( 'Discount Description', 'invoicing' ),
-			'searching'                 => __( 'Searching', 'invoicing' ),
-			'loading'                   => __( 'Loading...', 'invoicing' ),
-			'search_customers'          => __( 'Enter customer name or email', 'invoicing' ),
-			'search_items'              => __( 'Enter item name', 'invoicing' ),
-			'graphs'                    => array_merge( array( 'refunded_fees', 'refunded_items', 'refunded_subtotal', 'refunded_tax' ), array_keys( wpinv_get_report_graphs() ) ),
+            'save_invoice'              => __('Save Invoice', 'invoicing'),
+            'status_publish'            => wpinv_status_nicename('publish'),
+            'status_pending'            => wpinv_status_nicename('wpi-pending'),
+            'delete_tax_rate'           => __('Are you sure you wish to delete this tax rate?', 'invoicing'),
+            'status_pending'            => wpinv_status_nicename('wpi-pending'),
+            'FillBillingDetails'        => __('Fill the user\'s billing information? This will remove any currently entered billing information', 'invoicing'),
+            'confirmCalcTotals'         => __('Recalculate totals? This will recalculate totals based on the user billing country. If no billing country is set it will use the base country.', 'invoicing'),
+            'AreYouSure'                => __('Are you sure?', 'invoicing'),
+            'errDeleteItem'             => __('This item is in use! Before delete this item, you need to delete all the invoice(s) using this item.', 'invoicing'),
+            'delete_subscription'       => __('Are you sure you want to delete this subscription?', 'invoicing'),
+            'action_edit'               => __('Edit', 'invoicing'),
+            'action_cancel'             => __('Cancel', 'invoicing'),
+            'item_description'          => __('Item Description', 'invoicing'),
+            'invoice_description'       => __('Invoice Description', 'invoicing'),
+            'discount_description'      => __('Discount Description', 'invoicing'),
+			'searching'                 => __('Searching', 'invoicing'),
+			'loading'                   => __('Loading...', 'invoicing'),
+			'search_customers'          => __('Enter customer name or email', 'invoicing'),
+			'search_items'              => __('Enter item name', 'invoicing'),
+			'graphs'                    => array_merge(array('refunded_fees', 'refunded_items', 'refunded_subtotal', 'refunded_tax'), array_keys(wpinv_get_report_graphs())),
         );
 
-		if ( ! empty( $post ) && getpaid_is_invoice_post_type( $post->post_type ) ) {
+		if (!empty($post) && getpaid_is_invoice_post_type($post->post_type)) {
 
-			$invoice              = new WPInv_Invoice( $post );
+			$invoice              = new WPInv_Invoice($post);
 			$i18n['save_invoice'] = sprintf(
-				__( 'Save %s', 'invoicing' ),
-				ucfirst( $invoice->get_invoice_quote_type() )
+				__('Save %s', 'invoicing'),
+				ucfirst($invoice->get_invoice_quote_type())
 			);
 
 			$i18n['invoice_description'] = sprintf(
-				__( '%s Description', 'invoicing' ),
-				ucfirst( $invoice->get_invoice_quote_type() )
+				__('%s Description', 'invoicing'),
+				ucfirst($invoice->get_invoice_quote_type())
 			);
 
 		}
@@ -218,24 +218,24 @@ 
 	 * @param  string $footer_text
 	 * @return string
 	 */
-	public function admin_footer_text( $footer_text ) {
+	public function admin_footer_text($footer_text) {
 		global $current_screen;
 
-		$page    = isset( $_GET['page'] ) ? sanitize_text_field( $_GET['page'] ) : '';
+		$page = isset($_GET['page']) ? sanitize_text_field($_GET['page']) : '';
 
-        if ( ! empty( $current_screen->post_type ) ) {
+        if (!empty($current_screen->post_type)) {
 			$page = $current_screen->post_type;
         }
 
         // General styles.
-        if ( apply_filters( 'getpaid_display_admin_footer_text', wpinv_current_user_can_manage_invoicing() ) && false !== stripos( $page, 'wpi' ) ) {
+        if (apply_filters('getpaid_display_admin_footer_text', wpinv_current_user_can_manage_invoicing()) && false !== stripos($page, 'wpi')) {
 
 			// Change the footer text
-			if ( ! get_user_meta( get_current_user_id(), 'getpaid_admin_footer_text_rated', true ) ) {
+			if (!get_user_meta(get_current_user_id(), 'getpaid_admin_footer_text_rated', true)) {
 
-				$rating_url  = esc_url(
+				$rating_url = esc_url(
 					wp_nonce_url(
-						admin_url( 'admin.php?page=wpinv-reports&getpaid-admin-action=rate_plugin' ),
+						admin_url('admin.php?page=wpinv-reports&getpaid-admin-action=rate_plugin'),
 						'getpaid-nonce',
 						'getpaid-nonce'
                     )
@@ -243,7 +243,7 @@ 
 
 				$footer_text = sprintf(
 					/* translators: %s: five stars */
-					__( 'If you like <strong>GetPaid</strong>, please leave us a %s rating. A huge thanks in advance!', 'invoicing' ),
+					__('If you like <strong>GetPaid</strong>, please leave us a %s rating. A huge thanks in advance!', 'invoicing'),
 					"<a href='$rating_url'>&#9733;&#9733;&#9733;&#9733;&#9733;</a>"
 				);
 
@@ -251,7 +251,7 @@ 
 
 				$footer_text = sprintf(
 					/* translators: %s: GetPaid */
-					__( 'Thank you for using %s!', 'invoicing' ),
+					__('Thank you for using %s!', 'invoicing'),
 					"<a href='https://wpgetpaid.com/' target='_blank'><strong>GetPaid</strong></a>"
 				);
 
@@ -267,8 +267,8 @@ 
 	 * @since  2.0.0
 	 */
 	public function redirect_to_wordpress_rating_page() {
-		update_user_meta( get_current_user_id(), 'getpaid_admin_footer_text_rated', 1 );
-		wp_redirect( 'https://wordpress.org/support/plugin/invoicing/reviews?rate=5#new-post' );
+		update_user_meta(get_current_user_id(), 'getpaid_admin_footer_text_rated', 1);
+		wp_redirect('https://wordpress.org/support/plugin/invoicing/reviews?rate=5#new-post');
 		exit;
 	}
 
@@ -279,30 +279,30 @@ 
 	protected function load_payment_form_scripts() {
         global $post;
 
-        wp_enqueue_script( 'vue', WPINV_PLUGIN_URL . 'assets/js/vue/vue.min.js', array(), WPINV_VERSION );
-		wp_enqueue_script( 'sortable', WPINV_PLUGIN_URL . 'assets/js/sortable.min.js', array(), WPINV_VERSION );
-		wp_enqueue_script( 'vue_draggable', WPINV_PLUGIN_URL . 'assets/js/vue/vuedraggable.min.js', array( 'sortable', 'vue' ), WPINV_VERSION );
+        wp_enqueue_script('vue', WPINV_PLUGIN_URL . 'assets/js/vue/vue.min.js', array(), WPINV_VERSION);
+		wp_enqueue_script('sortable', WPINV_PLUGIN_URL . 'assets/js/sortable.min.js', array(), WPINV_VERSION);
+		wp_enqueue_script('vue_draggable', WPINV_PLUGIN_URL . 'assets/js/vue/vuedraggable.min.js', array('sortable', 'vue'), WPINV_VERSION);
 
-		$version = filemtime( WPINV_PLUGIN_DIR . 'assets/js/admin-payment-forms.js' );
-		wp_register_script( 'wpinv-admin-payment-form-script', WPINV_PLUGIN_URL . 'assets/js/admin-payment-forms.js', array( 'wpinv-admin-script', 'vue_draggable', 'wp-hooks' ), $version );
+		$version = filemtime(WPINV_PLUGIN_DIR . 'assets/js/admin-payment-forms.js');
+		wp_register_script('wpinv-admin-payment-form-script', WPINV_PLUGIN_URL . 'assets/js/admin-payment-forms.js', array('wpinv-admin-script', 'vue_draggable', 'wp-hooks'), $version);
 
 		wp_localize_script(
             'wpinv-admin-payment-form-script',
             'wpinvPaymentFormAdmin',
             array(
-				'elements'      => wpinv_get_data( 'payment-form-elements' ),
-				'form_elements' => getpaid_get_payment_form_elements( $post->ID ),
+				'elements'      => wpinv_get_data('payment-form-elements'),
+				'form_elements' => getpaid_get_payment_form_elements($post->ID),
 				'currency'      => wpinv_currency_symbol(),
 				'position'      => wpinv_currency_position(),
 				'decimals'      => (int) wpinv_decimals(),
 				'thousands_sep' => wpinv_thousands_separator(),
 				'decimals_sep'  => wpinv_decimal_separator(),
-				'form_items'    => gepaid_get_form_items( $post->ID ),
+				'form_items'    => gepaid_get_form_items($post->ID),
 				'is_default'    => $post->ID == wpinv_get_default_payment_form(),
             )
         );
 
-        wp_enqueue_script( 'wpinv-admin-payment-form-script' );
+        wp_enqueue_script('wpinv-admin-payment-form-script');
 
     }
 
@@ -313,24 +313,24 @@ 
      * @return string
 	 *
 	 */
-    public function admin_body_class( $classes ) {
+    public function admin_body_class($classes) {
 		global $pagenow, $post, $current_screen;
 
-        $page = isset( $_GET['page'] ) ? sanitize_text_field( $_GET['page'] ) : '';
+        $page = isset($_GET['page']) ? sanitize_text_field($_GET['page']) : '';
 
-        if ( ! empty( $current_screen->post_type ) ) {
+        if (!empty($current_screen->post_type)) {
 			$page = $current_screen->post_type;
         }
 
-        if ( false !== stripos( $page, 'wpi' ) ) {
-            $classes .= ' wpi-' . sanitize_key( $page );
+        if (false !== stripos($page, 'wpi')) {
+            $classes .= ' wpi-' . sanitize_key($page);
         }
 
-        if ( in_array( $page, wpinv_parse_list( 'wpi_invoice wpi_payment_form wpi_quote' ) ) ) {
+        if (in_array($page, wpinv_parse_list('wpi_invoice wpi_payment_form wpi_quote'))) {
             $classes .= ' wpinv-cpt wpinv';
 		}
 
-		if ( getpaid_is_invoice_post_type( $page ) ) {
+		if (getpaid_is_invoice_post_type($page)) {
             $classes .= ' getpaid-is-invoice-cpt';
         }
 
@@ -349,21 +349,21 @@ 
 				'version'           => WPINV_VERSION,
 				'support_url'       => 'https://wpgetpaid.com/support/',
 				'documentation_url' => 'https://docs.wpgetpaid.com/',
-				'activated'         => (int) get_option( 'gepaid_installed_on' ),
+				'activated'         => (int) get_option('gepaid_installed_on'),
             )
         );
 
         new AyeCode_Connect_Helper(
             array(
-				'connect_title'     => __( 'WP Invoicing - an AyeCode product!', 'invoicing' ),
-				'connect_external'  => __( 'Please confirm you wish to connect your site?', 'invoicing' ),
-				'connect'           => sprintf( __( '<strong>Have a license?</strong> Forget about entering license keys or downloading zip files, connect your site for instant access. %1$slearn more%2$s', 'invoicing' ), "<a href='https://ayecode.io/introducing-ayecode-connect/' target='_blank'>", '</a>' ),
-				'connect_button'    => __( 'Connect Site', 'invoicing' ),
-				'connecting_button' => __( 'Connecting...', 'invoicing' ),
-				'error_localhost'   => __( 'This service will only work with a live domain, not a localhost.', 'invoicing' ),
-				'error'             => __( 'Something went wrong, please refresh and try again.', 'invoicing' ),
+				'connect_title'     => __('WP Invoicing - an AyeCode product!', 'invoicing'),
+				'connect_external'  => __('Please confirm you wish to connect your site?', 'invoicing'),
+				'connect'           => sprintf(__('<strong>Have a license?</strong> Forget about entering license keys or downloading zip files, connect your site for instant access. %1$slearn more%2$s', 'invoicing'), "<a href='https://ayecode.io/introducing-ayecode-connect/' target='_blank'>", '</a>'),
+				'connect_button'    => __('Connect Site', 'invoicing'),
+				'connecting_button' => __('Connecting...', 'invoicing'),
+				'error_localhost'   => __('This service will only work with a live domain, not a localhost.', 'invoicing'),
+				'error'             => __('Something went wrong, please refresh and try again.', 'invoicing'),
             ),
-            array( 'wpi-addons' )
+            array('wpi-addons')
         );
 
     }
@@ -375,20 +375,20 @@ 
 	 */
 	public function activation_redirect() {
 
-		$redirected = get_option( 'wpinv_redirected_to_settings' );
+		$redirected = get_option('wpinv_redirected_to_settings');
 
-		if ( ! empty( $redirected ) || wp_doing_ajax() || ! current_user_can( 'manage_options' ) ) {
+		if (!empty($redirected) || wp_doing_ajax() || !current_user_can('manage_options')) {
 			return;
 		}
 
 		// Bail if activating from network, or bulk
-		if ( is_network_admin() || isset( $_GET['activate-multi'] ) ) {
+		if (is_network_admin() || isset($_GET['activate-multi'])) {
 			return;
 		}
 
-	    update_option( 'wpinv_redirected_to_settings', 1 );
+	    update_option('wpinv_redirected_to_settings', 1);
 
-        wp_safe_redirect( admin_url( 'index.php?page=gp-setup' ) );
+        wp_safe_redirect(admin_url('index.php?page=gp-setup'));
         exit;
 
 	}
@@ -397,10 +397,10 @@ 
      * Fires an admin action after verifying that a user can fire them.
      */
     public function maybe_do_admin_action() {
-        if ( isset( $_REQUEST['getpaid-admin-action'] ) && isset( $_REQUEST['getpaid-nonce'] ) && wp_verify_nonce( $_REQUEST['getpaid-nonce'], 'getpaid-nonce' ) && wpinv_current_user_can( sanitize_text_field( $_REQUEST['getpaid-admin-action'] ), $_REQUEST ) ) {
-            $key = sanitize_key( $_REQUEST['getpaid-admin-action'] );
+        if (isset($_REQUEST['getpaid-admin-action']) && isset($_REQUEST['getpaid-nonce']) && wp_verify_nonce($_REQUEST['getpaid-nonce'], 'getpaid-nonce') && wpinv_current_user_can(sanitize_text_field($_REQUEST['getpaid-admin-action']), $_REQUEST)) {
+            $key = sanitize_key($_REQUEST['getpaid-admin-action']);
 
-            do_action( "getpaid_authenticated_admin_action_$key", $_REQUEST );
+            do_action("getpaid_authenticated_admin_action_$key", $_REQUEST);
         }
     }
 
@@ -409,24 +409,24 @@ 
 	 *
 	 * @param array $args
      */
-    public function duplicate_invoice( $args ) {
+    public function duplicate_invoice($args) {
 
-		if ( empty( $args['invoice_id'] ) ) {
+		if (empty($args['invoice_id'])) {
 			return;
 		}
 
-		$invoice = new WPInv_Invoice( (int) $args['invoice_id'] );
+		$invoice = new WPInv_Invoice((int) $args['invoice_id']);
 
-		if ( ! $invoice->exists() ) {
+		if (!$invoice->exists()) {
 			return;
 		}
 
-		$new_invoice = getpaid_duplicate_invoice( $invoice );
+		$new_invoice = getpaid_duplicate_invoice($invoice);
 		$new_invoice->save();
 
-		if ( $new_invoice->exists() ) {
+		if ($new_invoice->exists()) {
 
-			getpaid_admin()->show_success( __( 'Invoice duplicated successfully.', 'invoicing' ) );
+			getpaid_admin()->show_success(__('Invoice duplicated successfully.', 'invoicing'));
 
 			wp_safe_redirect(
 				add_query_arg(
@@ -434,14 +434,14 @@ 
 						'action' => 'edit',
 						'post'   => $new_invoice->get_id(),
 					),
-					admin_url( 'post.php' )
+					admin_url('post.php')
 				)
 			);
 			exit;
 
 		}
 
-		getpaid_admin()->show_error( __( 'There was an error duplicating this invoice. Please try again.', 'invoicing' ) );
+		getpaid_admin()->show_error(__('There was an error duplicating this invoice. Please try again.', 'invoicing'));
 
 	}
 
@@ -450,34 +450,34 @@ 
 	 *
 	 * @param array $args
      */
-    public function duplicate_payment_form( $args ) {
+    public function duplicate_payment_form($args) {
 
-		if ( empty( $args['form_id'] ) ) {
+		if (empty($args['form_id'])) {
 			return;
 		}
 
-		$form = new GetPaid_Payment_Form( (int) $args['form_id'] );
+		$form = new GetPaid_Payment_Form((int) $args['form_id']);
 
-		if ( ! $form->exists() ) {
+		if (!$form->exists()) {
 			return;
 		}
 
 		$new_form = new GetPaid_Payment_Form();
-		$new_form->set_author( $form->get_author( 'edit' ) );
-		$new_form->set_name( $form->get_name( 'edit' ) . __( '(copy)', 'invoicing' ) );
-		$new_form->set_elements( $form->get_elements( 'edit' ) );
-		$new_form->set_items( $form->get_items( 'edit' ) );
+		$new_form->set_author($form->get_author('edit'));
+		$new_form->set_name($form->get_name('edit') . __('(copy)', 'invoicing'));
+		$new_form->set_elements($form->get_elements('edit'));
+		$new_form->set_items($form->get_items('edit'));
 		$new_form->save();
 
-		if ( $new_form->exists() ) {
-			$this->show_success( __( 'Form duplicated successfully', 'invoicing' ) );
-			$url = get_edit_post_link( $new_form->get_id(), 'edit' );
+		if ($new_form->exists()) {
+			$this->show_success(__('Form duplicated successfully', 'invoicing'));
+			$url = get_edit_post_link($new_form->get_id(), 'edit');
 		} else {
-			$this->show_error( __( 'Unable to duplicate form', 'invoicing' ) );
-			$url = remove_query_arg( array( 'getpaid-admin-action', 'form_id', 'getpaid-nonce' ) );
+			$this->show_error(__('Unable to duplicate form', 'invoicing'));
+			$url = remove_query_arg(array('getpaid-admin-action', 'form_id', 'getpaid-nonce'));
 		}
 
-		wp_redirect( $url );
+		wp_redirect($url);
 		exit;
 	}
 
@@ -486,27 +486,27 @@ 
 	 *
 	 * @param array $args
      */
-    public function reset_form_stats( $args ) {
+    public function reset_form_stats($args) {
 
-		if ( empty( $args['form_id'] ) ) {
+		if (empty($args['form_id'])) {
 			return;
 		}
 
-		$form = new GetPaid_Payment_Form( (int) $args['form_id'] );
+		$form = new GetPaid_Payment_Form((int) $args['form_id']);
 
-		if ( ! $form->exists() ) {
+		if (!$form->exists()) {
 			return;
 		}
 
-		$form->set_earned( 0 );
-		$form->set_refunded( 0 );
-		$form->set_cancelled( 0 );
-		$form->set_failed( 0 );
+		$form->set_earned(0);
+		$form->set_refunded(0);
+		$form->set_cancelled(0);
+		$form->set_failed(0);
 		$form->save();
 
-		$this->show_success( __( 'Form stats reset successfully', 'invoicing' ) );
+		$this->show_success(__('Form stats reset successfully', 'invoicing'));
 
-		wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'form_id', 'getpaid-nonce' ) ) );
+		wp_safe_redirect(remove_query_arg(array('getpaid-admin-action', 'form_id', 'getpaid-nonce')));
 		exit;
 	}
 
@@ -515,9 +515,9 @@ 
 	 *
 	 * @param array $args
      */
-    public function send_customer_invoice( $args ) {
-		getpaid()->get( 'invoice_emails' )->user_invoice( new WPInv_Invoice( $args['invoice_id'] ), true );
-		wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'getpaid-nonce', 'invoice_id' ) ) );
+    public function send_customer_invoice($args) {
+		getpaid()->get('invoice_emails')->user_invoice(new WPInv_Invoice($args['invoice_id']), true);
+		wp_safe_redirect(remove_query_arg(array('getpaid-admin-action', 'getpaid-nonce', 'invoice_id')));
 		exit;
 	}
 
@@ -526,16 +526,16 @@ 
 	 *
 	 * @param array $args
      */
-    public function send_customer_payment_reminder( $args ) {
-		$sent = getpaid()->get( 'invoice_emails' )->force_send_overdue_notice( new WPInv_Invoice( $args['invoice_id'] ) );
+    public function send_customer_payment_reminder($args) {
+		$sent = getpaid()->get('invoice_emails')->force_send_overdue_notice(new WPInv_Invoice($args['invoice_id']));
 
-		if ( $sent ) {
-			$this->show_success( __( 'Payment reminder was successfully sent to the customer', 'invoicing' ) );
+		if ($sent) {
+			$this->show_success(__('Payment reminder was successfully sent to the customer', 'invoicing'));
 		} else {
-			$this->show_error( __( 'Could not sent payment reminder to the customer', 'invoicing' ) );
+			$this->show_error(__('Could not sent payment reminder to the customer', 'invoicing'));
 		}
 
-		wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'getpaid-nonce', 'invoice_id' ) ) );
+		wp_safe_redirect(remove_query_arg(array('getpaid-admin-action', 'getpaid-nonce', 'invoice_id')));
 		exit;
 	}
 
@@ -545,8 +545,8 @@ 
      */
     public function admin_reset_tax_rates() {
 
-		update_option( 'wpinv_tax_rates', wpinv_get_data( 'tax-rates' ) );
-		wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'getpaid-nonce' ) ) );
+		update_option('wpinv_tax_rates', wpinv_get_data('tax-rates'));
+		wp_safe_redirect(remove_query_arg(array('getpaid-admin-action', 'getpaid-nonce')));
 		exit;
 
 	}
@@ -558,8 +558,8 @@ 
     public function admin_create_missing_pages() {
 		$installer = new GetPaid_Installer();
 		$installer->create_pages();
-		$this->show_success( __( 'GetPaid pages updated.', 'invoicing' ) );
-		wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'getpaid-nonce' ) ) );
+		$this->show_success(__('GetPaid pages updated.', 'invoicing'));
+		wp_safe_redirect(remove_query_arg(array('getpaid-admin-action', 'getpaid-nonce')));
 		exit;
 	}
 
@@ -568,8 +568,8 @@ 
 	 */
 	public function admin_refresh_permalinks() {
 		flush_rewrite_rules();
-		$this->show_success( __( 'Permalinks refreshed.', 'invoicing' ) );
-		wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'getpaid-nonce' ) ) );
+		$this->show_success(__('Permalinks refreshed.', 'invoicing'));
+		wp_safe_redirect(remove_query_arg(array('getpaid-admin-action', 'getpaid-nonce')));
 		exit;
 	}
 
@@ -581,35 +581,35 @@ 
 		global $wpdb;
 		$installer = new GetPaid_Installer();
 
-		if ( $wpdb->get_var( "SHOW TABLES LIKE '{$wpdb->prefix}wpinv_subscriptions'" ) != $wpdb->prefix . 'wpinv_subscriptions' ) {
+		if ($wpdb->get_var("SHOW TABLES LIKE '{$wpdb->prefix}wpinv_subscriptions'") != $wpdb->prefix . 'wpinv_subscriptions') {
 			$installer->create_subscriptions_table();
 
-			if ( $wpdb->last_error !== '' ) {
-				$this->show_error( __( 'Your GetPaid tables have been updated:', 'invoicing' ) . ' ' . $wpdb->last_error );
+			if ($wpdb->last_error !== '') {
+				$this->show_error(__('Your GetPaid tables have been updated:', 'invoicing') . ' ' . $wpdb->last_error);
 			}
 		}
 
-		if ( $wpdb->get_var( "SHOW TABLES LIKE '{$wpdb->prefix}getpaid_invoices'" ) != $wpdb->prefix . 'getpaid_invoices' ) {
+		if ($wpdb->get_var("SHOW TABLES LIKE '{$wpdb->prefix}getpaid_invoices'") != $wpdb->prefix . 'getpaid_invoices') {
 			$installer->create_invoices_table();
 
-			if ( '' !== $wpdb->last_error ) {
-				$this->show_error( __( 'Your GetPaid tables have been updated:', 'invoicing' ) . ' ' . $wpdb->last_error );
+			if ('' !== $wpdb->last_error) {
+				$this->show_error(__('Your GetPaid tables have been updated:', 'invoicing') . ' ' . $wpdb->last_error);
 			}
 		}
 
-		if ( $wpdb->get_var( "SHOW TABLES LIKE '{$wpdb->prefix}getpaid_invoice_items'" ) != $wpdb->prefix . 'getpaid_invoice_items' ) {
+		if ($wpdb->get_var("SHOW TABLES LIKE '{$wpdb->prefix}getpaid_invoice_items'") != $wpdb->prefix . 'getpaid_invoice_items') {
 			$installer->create_invoice_items_table();
 
-			if ( '' !== $wpdb->last_error ) {
-				$this->show_error( __( 'Your GetPaid tables have been updated:', 'invoicing' ) . ' ' . $wpdb->last_error );
+			if ('' !== $wpdb->last_error) {
+				$this->show_error(__('Your GetPaid tables have been updated:', 'invoicing') . ' ' . $wpdb->last_error);
 			}
 		}
 
-		if ( ! $this->has_notices() ) {
-			$this->show_success( __( 'Your GetPaid tables have been updated.', 'invoicing' ) );
+		if (!$this->has_notices()) {
+			$this->show_success(__('Your GetPaid tables have been updated.', 'invoicing'));
 		}
 
-		wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'getpaid-nonce' ) ) );
+		wp_safe_redirect(remove_query_arg(array('getpaid-admin-action', 'getpaid-nonce')));
 		exit;
 	}
 
@@ -624,10 +624,10 @@ 
 		$installer->migrate_old_invoices();
 
 		// Show an admin message.
-		$this->show_success( __( 'Your invoices have been migrated.', 'invoicing' ) );
+		$this->show_success(__('Your invoices have been migrated.', 'invoicing'));
 
 		// Redirect the admin.
-		wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'getpaid-nonce' ) ) );
+		wp_safe_redirect(remove_query_arg(array('getpaid-admin-action', 'getpaid-nonce')));
 		exit;
 
 	}
@@ -639,78 +639,78 @@ 
     public function admin_download_customers() {
 		global $wpdb;
 
-		$output = fopen( 'php://output', 'w' );
+		$output = fopen('php://output', 'w');
 
-		if ( false === $output ) {
-			wp_die( esc_html__( 'Unsupported server', 'invoicing' ), 500 );
+		if (false === $output) {
+			wp_die(esc_html__('Unsupported server', 'invoicing'), 500);
 		}
 
-		header( 'Content-Type:text/csv' );
-		header( 'Content-Disposition:attachment;filename=customers.csv' );
+		header('Content-Type:text/csv');
+		header('Content-Disposition:attachment;filename=customers.csv');
 
 		$post_types = '';
 
-		foreach ( array_keys( getpaid_get_invoice_post_types() ) as $post_type ) {
-			$post_types .= $wpdb->prepare( 'post_type=%s OR ', $post_type );
+		foreach (array_keys(getpaid_get_invoice_post_types()) as $post_type) {
+			$post_types .= $wpdb->prepare('post_type=%s OR ', $post_type);
 		}
 
-		$post_types = rtrim( $post_types, ' OR' );
+		$post_types = rtrim($post_types, ' OR');
 
-		$customers = $wpdb->get_col( "SELECT DISTINCT( post_author ) FROM $wpdb->posts WHERE $post_types" );
+		$customers = $wpdb->get_col("SELECT DISTINCT( post_author ) FROM $wpdb->posts WHERE $post_types");
 
 		$columns = array(
-			'name'       => __( 'Name', 'invoicing' ),
-			'email'      => __( 'Email', 'invoicing' ),
-			'country'    => __( 'Country', 'invoicing' ),
-			'state'      => __( 'State', 'invoicing' ),
-			'city'       => __( 'City', 'invoicing' ),
-			'zip'        => __( 'ZIP', 'invoicing' ),
-			'address'    => __( 'Address', 'invoicing' ),
-			'phone'      => __( 'Phone', 'invoicing' ),
-			'company'    => __( 'Company', 'invoicing' ),
-			'company_id' => __( 'Company ID', 'invoicing' ),
-			'invoices'   => __( 'Invoices', 'invoicing' ),
-			'total_raw'  => __( 'Total Spend', 'invoicing' ),
-			'signup'     => __( 'Date created', 'invoicing' ),
+			'name'       => __('Name', 'invoicing'),
+			'email'      => __('Email', 'invoicing'),
+			'country'    => __('Country', 'invoicing'),
+			'state'      => __('State', 'invoicing'),
+			'city'       => __('City', 'invoicing'),
+			'zip'        => __('ZIP', 'invoicing'),
+			'address'    => __('Address', 'invoicing'),
+			'phone'      => __('Phone', 'invoicing'),
+			'company'    => __('Company', 'invoicing'),
+			'company_id' => __('Company ID', 'invoicing'),
+			'invoices'   => __('Invoices', 'invoicing'),
+			'total_raw'  => __('Total Spend', 'invoicing'),
+			'signup'     => __('Date created', 'invoicing'),
 		);
 
 		// Output the csv column headers.
-		fputcsv( $output, array_values( $columns ) );
+		fputcsv($output, array_values($columns));
 
 		// Loop through
 		$table = new WPInv_Customers_Table();
-		foreach ( $customers as $customer_id ) {
+		foreach ($customers as $customer_id) {
 
-			$user = get_user_by( 'id', $customer_id );
+			$user = get_user_by('id', $customer_id);
 			$row  = array();
-			if ( empty( $user ) ) {
+			if (empty($user)) {
 				continue;
 			}
 
-			foreach ( array_keys( $columns ) as $column ) {
+			foreach (array_keys($columns) as $column) {
 
 				$method = 'column_' . $column;
 
-				if ( 'name' == $column ) {
-					$value = esc_html( $user->display_name );
-				} elseif ( 'email' == $column ) {
-					$value = sanitize_email( $user->user_email );
-				} elseif ( is_callable( array( $table, $method ) ) ) {
-					$value = wp_strip_all_tags( $table->$method( $user ) );
+				if ('name' == $column) {
+					$value = esc_html($user->display_name);
+				} elseif ('email' == $column) {
+					$value = sanitize_email($user->user_email);
+				} elseif (is_callable(array($table, $method))) {
+					$value = wp_strip_all_tags($table->$method($user));
 				}
 
-				if ( empty( $value ) ) {
-					$value = esc_html( get_user_meta( $user->ID, '_wpinv_' . $column, true ) );
+				if (empty($value)) {
+					$value = esc_html(get_user_meta($user->ID, '_wpinv_' . $column, true));
 				}
 
 				$row[] = $value;
 
 			}
 
-			fputcsv( $output, $row );
+			fputcsv($output, $row);
 		}
 
-		fclose( $output );
+		fclose($output);
 		exit;
 
 	}
@@ -720,27 +720,27 @@ 
 	 *
 	 * @param array $data
      */
-    public function admin_install_plugin( $data ) {
+    public function admin_install_plugin($data) {
 
-		if ( ! empty( $data['plugins'] ) ) {
+		if (!empty($data['plugins'])) {
 			include_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
 			wp_cache_flush();
 
-			foreach ( $data['plugins'] as $slug => $file ) {
-				$plugin_zip = esc_url( 'https://downloads.wordpress.org/plugin/' . $slug . '.latest-stable.zip' );
-				$upgrader   = new Plugin_Upgrader( new Automatic_Upgrader_Skin() );
-				$installed  = $upgrader->install( $plugin_zip );
+			foreach ($data['plugins'] as $slug => $file) {
+				$plugin_zip = esc_url('https://downloads.wordpress.org/plugin/' . $slug . '.latest-stable.zip');
+				$upgrader   = new Plugin_Upgrader(new Automatic_Upgrader_Skin());
+				$installed  = $upgrader->install($plugin_zip);
 
-				if ( ! is_wp_error( $installed ) && $installed ) {
-					activate_plugin( $file, '', false, true );
+				if (!is_wp_error($installed) && $installed) {
+					activate_plugin($file, '', false, true);
 				} else {
-					wpinv_error_log( $upgrader->skin->get_upgrade_messages(), false );
+					wpinv_error_log($upgrader->skin->get_upgrade_messages(), false);
 				}
 }
 }
 
-		$redirect = isset( $data['redirect'] ) ? esc_url_raw( $data['redirect'] ) : admin_url( 'plugins.php' );
-		wp_safe_redirect( $redirect );
+		$redirect = isset($data['redirect']) ? esc_url_raw($data['redirect']) : admin_url('plugins.php');
+		wp_safe_redirect($redirect);
 		exit;
 
 	}
@@ -750,41 +750,41 @@ 
 	 *
 	 * @param array $data
      */
-    public function admin_connect_gateway( $data ) {
+    public function admin_connect_gateway($data) {
 
-		if ( ! empty( $data['plugin'] ) ) {
+		if (!empty($data['plugin'])) {
 
-			$gateway     = sanitize_key( $data['plugin'] );
-			$connect_url = apply_filters( "getpaid_get_{$gateway}_connect_url", false, $data );
+			$gateway     = sanitize_key($data['plugin']);
+			$connect_url = apply_filters("getpaid_get_{$gateway}_connect_url", false, $data);
 
-			if ( ! empty( $connect_url ) ) {
-				wp_redirect( $connect_url );
+			if (!empty($connect_url)) {
+				wp_redirect($connect_url);
 				exit;
 			}
 
-			if ( 'stripe' == $data['plugin'] ) {
+			if ('stripe' == $data['plugin']) {
 				require_once ABSPATH . 'wp-admin/includes/plugin.php';
 				include_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
 				wp_cache_flush();
 
-				if ( ! array_key_exists( 'getpaid-stripe-payments/getpaid-stripe-payments.php', get_plugins() ) ) {
-					$plugin_zip = esc_url( 'https://downloads.wordpress.org/plugin/getpaid-stripe-payments.latest-stable.zip' );
-					$upgrader   = new Plugin_Upgrader( new Automatic_Upgrader_Skin() );
-					$upgrader->install( $plugin_zip );
+				if (!array_key_exists('getpaid-stripe-payments/getpaid-stripe-payments.php', get_plugins())) {
+					$plugin_zip = esc_url('https://downloads.wordpress.org/plugin/getpaid-stripe-payments.latest-stable.zip');
+					$upgrader   = new Plugin_Upgrader(new Automatic_Upgrader_Skin());
+					$upgrader->install($plugin_zip);
 				}
 
-				activate_plugin( 'getpaid-stripe-payments/getpaid-stripe-payments.php', '', false, true );
+				activate_plugin('getpaid-stripe-payments/getpaid-stripe-payments.php', '', false, true);
 			}
 
-			$connect_url = apply_filters( "getpaid_get_{$gateway}_connect_url", false, $data );
-			if ( ! empty( $connect_url ) ) {
-				wp_redirect( $connect_url );
+			$connect_url = apply_filters("getpaid_get_{$gateway}_connect_url", false, $data);
+			if (!empty($connect_url)) {
+				wp_redirect($connect_url);
 				exit;
 			}
 }
 
-		$redirect = isset( $data['redirect'] ) ? esc_url_raw( urldecode( $data['redirect'] ) ) : admin_url( 'admin.php?page=wpinv-settings&tab=gateways' );
-		wp_safe_redirect( $redirect );
+		$redirect = isset($data['redirect']) ? esc_url_raw(urldecode($data['redirect'])) : admin_url('admin.php?page=wpinv-settings&tab=gateways');
+		wp_safe_redirect($redirect);
 		exit;
 
 	}
@@ -798,35 +798,35 @@ 
 
 		// Fetch all invoices that have discount codes.
 		$table    = $wpdb->prefix . 'getpaid_invoices';
-		$invoices = $wpdb->get_col( "SELECT `post_id` FROM `$table` WHERE `discount` = 0 && `discount_code` <> ''" );
+		$invoices = $wpdb->get_col("SELECT `post_id` FROM `$table` WHERE `discount` = 0 && `discount_code` <> ''");
 
-		foreach ( $invoices as $invoice ) {
+		foreach ($invoices as $invoice) {
 
-			$invoice = new WPInv_Invoice( $invoice );
+			$invoice = new WPInv_Invoice($invoice);
 
-			if ( ! $invoice->exists() ) {
+			if (!$invoice->exists()) {
 				continue;
 			}
 
 			// Abort if the discount does not exist or does not apply here.
-			$discount = new WPInv_Discount( $invoice->get_discount_code() );
-			if ( ! $discount->exists() ) {
+			$discount = new WPInv_Discount($invoice->get_discount_code());
+			if (!$discount->exists()) {
 				continue;
 			}
 
-			$invoice->add_discount( getpaid_calculate_invoice_discount( $invoice, $discount ) );
+			$invoice->add_discount(getpaid_calculate_invoice_discount($invoice, $discount));
 			$invoice->recalculate_total();
 
-			if ( $invoice->get_total_discount() > 0 ) {
+			if ($invoice->get_total_discount() > 0) {
 				$invoice->save();
 			}
 }
 
 		// Show an admin message.
-		$this->show_success( __( 'Discounts have been recalculated.', 'invoicing' ) );
+		$this->show_success(__('Discounts have been recalculated.', 'invoicing'));
 
 		// Redirect the admin.
-		wp_safe_redirect( remove_query_arg( array( 'getpaid-admin-action', 'getpaid-nonce' ) ) );
+		wp_safe_redirect(remove_query_arg(array('getpaid-admin-action', 'getpaid-nonce')));
 		exit;
 
 	}
@@ -838,8 +838,8 @@ 
      * @return array
 	 */
 	public function get_notices() {
-		$notices = get_option( 'wpinv_admin_notices' );
-        return is_array( $notices ) ? $notices : array();
+		$notices = get_option('wpinv_admin_notices');
+        return is_array($notices) ? $notices : array();
 	}
 
 	/**
@@ -849,7 +849,7 @@ 
      * @return array
 	 */
 	public function has_notices() {
-		return count( $this->get_notices() ) > 0;
+		return count($this->get_notices()) > 0;
 	}
 
 	/**
@@ -859,7 +859,7 @@ 
 	 * @since       1.0.19
 	 */
 	public function clear_notices() {
-		delete_option( 'wpinv_admin_notices' );
+		delete_option('wpinv_admin_notices');
 	}
 
 	/**
@@ -868,16 +868,16 @@ 
 	 * @access      public
 	 * @since       1.0.19
 	 */
-	public function save_notice( $type, $message ) {
+	public function save_notice($type, $message) {
 		$notices = $this->get_notices();
 
-		if ( empty( $notices[ $type ] ) || ! is_array( $notices[ $type ] ) ) {
-			$notices[ $type ] = array();
+		if (empty($notices[$type]) || !is_array($notices[$type])) {
+			$notices[$type] = array();
 		}
 
-		$notices[ $type ][] = $message;
+		$notices[$type][] = $message;
 
-		update_option( 'wpinv_admin_notices', $notices );
+		update_option('wpinv_admin_notices', $notices);
 	}
 
 	/**
@@ -887,8 +887,8 @@ 
 	 * @access      public
 	 * @since       1.0.19
 	 */
-	public function show_success( $msg ) {
-		$this->save_notice( 'success', $msg );
+	public function show_success($msg) {
+		$this->save_notice('success', $msg);
 	}
 
 	/**
@@ -898,8 +898,8 @@ 
 	 * @param       string $msg The message to qeue.
 	 * @since       1.0.19
 	 */
-	public function show_error( $msg ) {
-		$this->save_notice( 'error', $msg );
+	public function show_error($msg) {
+		$this->save_notice('error', $msg);
 	}
 
 	/**
@@ -909,8 +909,8 @@ 
 	 * @param       string $msg The message to qeue.
 	 * @since       1.0.19
 	 */
-	public function show_warning( $msg ) {
-		$this->save_notice( 'warning', $msg );
+	public function show_warning($msg) {
+		$this->save_notice('warning', $msg);
 	}
 
 	/**
@@ -920,8 +920,8 @@ 
 	 * @param       string $msg The message to qeue.
 	 * @since       1.0.19
 	 */
-	public function show_info( $msg ) {
-		$this->save_notice( 'info', $msg );
+	public function show_info($msg) {
+		$this->save_notice('info', $msg);
 	}
 
 	/**
@@ -935,29 +935,29 @@ 
         $notices = $this->get_notices();
         $this->clear_notices();
 
-		foreach ( $notices as $type => $messages ) {
+		foreach ($notices as $type => $messages) {
 
-			if ( ! is_array( $messages ) ) {
+			if (!is_array($messages)) {
 				continue;
 			}
 
-            $type  = esc_attr( $type );
-			foreach ( $messages as $message ) {
-				echo wp_kses_post( "<div class='notice notice-$type is-dismissible'><p>$message</p></div>" );
+            $type = esc_attr($type);
+			foreach ($messages as $message) {
+				echo wp_kses_post("<div class='notice notice-$type is-dismissible'><p>$message</p></div>");
             }
 }
 
-		foreach ( array( 'checkout_page', 'invoice_history_page', 'success_page', 'failure_page', 'invoice_subscription_page' ) as $page ) {
+		foreach (array('checkout_page', 'invoice_history_page', 'success_page', 'failure_page', 'invoice_subscription_page') as $page) {
 
-			if ( ! is_numeric( wpinv_get_option( $page, false ) ) ) {
-				$url     = wp_nonce_url(
-					add_query_arg( 'getpaid-admin-action', 'create_missing_pages' ),
+			if (!is_numeric(wpinv_get_option($page, false))) {
+				$url = wp_nonce_url(
+					add_query_arg('getpaid-admin-action', 'create_missing_pages'),
 					'getpaid-nonce',
 					'getpaid-nonce'
 				);
-				$message  = __( 'Some GetPaid pages are missing. To use GetPaid without any issues, click the button below to generate the missing pages.', 'invoicing' );
-				$message2 = __( 'Generate Pages', 'invoicing' );
-				echo wp_kses_post( "<div class='notice notice-warning is-dismissible'><p>$message<br><br><a href='$url' class='button button-primary'>$message2</a></p></div>" );
+				$message  = __('Some GetPaid pages are missing. To use GetPaid without any issues, click the button below to generate the missing pages.', 'invoicing');
+				$message2 = __('Generate Pages', 'invoicing');
+				echo wp_kses_post("<div class='notice notice-warning is-dismissible'><p>$message<br><br><a href='$url' class='button button-primary'>$message2</a></p></div>");
 				break;
 			}
 }

includes/admin/admin-pages.php

Indentation +14 added lines, -14 removed lines

@@ -57,8 +57,8 @@ 
             'getpaid-nonce',
             'getpaid-nonce'
         );
-		$anchor = __( 'Deactivate', 'invoicing' );
-		$title  = esc_attr__( 'Are you sure you want to deactivate this discount?', 'invoicing' );
+        $anchor = __( 'Deactivate', 'invoicing' );
+        $title  = esc_attr__( 'Are you sure you want to deactivate this discount?', 'invoicing' );
         $row_actions['deactivate'] = "<a href='$url' onclick='return confirm(\"$title\")'>$anchor</a>";
 
     } elseif ( in_array( strtolower( $discount->post_status ), array( 'pending', 'draft' ) ) && wpinv_current_user_can( 'activate_discount', array( 'discount' => (int) $discount->ID ) ) ) {
@@ -73,8 +73,8 @@ 
             'getpaid-nonce',
             'getpaid-nonce'
         );
-		$anchor = __( 'Activate', 'invoicing' );
-		$title  = esc_attr__( 'Are you sure you want to activate this discount?', 'invoicing' );
+        $anchor = __( 'Activate', 'invoicing' );
+        $title  = esc_attr__( 'Are you sure you want to activate this discount?', 'invoicing' );
         $row_actions['activate'] = "<a href='$url' onclick='return confirm(\"$title\")'>$anchor</a>";
 
     }
@@ -121,13 +121,13 @@ 
             $types = wpinv_get_discount_types();
 
             foreach ( $types as $name => $type ) {
-			echo '<option value="' . esc_attr( $name ) . '"';
+            echo '<option value="' . esc_attr( $name ) . '"';
 
-			if ( isset( $_GET['discount_type'] ) ) {
-				selected( $name, sanitize_text_field( $_GET['discount_type'] ) );
+            if ( isset( $_GET['discount_type'] ) ) {
+                selected( $name, sanitize_text_field( $_GET['discount_type'] ) );
                 }
 
-			echo '>' . esc_html__( $type, 'invoicing' ) . '</option>';
+            echo '>' . esc_html__( $type, 'invoicing' ) . '</option>';
             }
         ?>
     </select>
@@ -154,15 +154,15 @@ 
         // Filter vat rule type
         if ( isset( $_GET['discount_type'] ) && $_GET['discount_type'] !== '' ) {
             $meta_query[] = array(
-				'key'     => '_wpi_discount_type',
-				'value'   => sanitize_key( urldecode( $_GET['discount_type'] ) ),
-				'compare' => '=',
-			);
-			}
+                'key'     => '_wpi_discount_type',
+                'value'   => sanitize_key( urldecode( $_GET['discount_type'] ) ),
+                'compare' => '=',
+            );
+            }
 
         if ( ! empty( $meta_query ) ) {
             $vars['meta_query'] = $meta_query;
-			}
+            }
     }
 
     return $vars;

Spacing +78 added lines, -78 removed lines

@@ -1,51 +1,51 @@ 
 <?php
 // MUST have WordPress.
-if ( ! defined( 'WPINC' ) ) {
+if (!defined('WPINC')) {
     exit;
 }
 
-add_action( 'manage_wpi_discount_posts_custom_column', 'wpinv_discount_custom_column' );
-function wpinv_discount_custom_column( $column ) {
+add_action('manage_wpi_discount_posts_custom_column', 'wpinv_discount_custom_column');
+function wpinv_discount_custom_column($column) {
     global $post;
 
-    $discount = new WPInv_Discount( $post );
+    $discount = new WPInv_Discount($post);
 
-    switch ( $column ) {
+    switch ($column) {
         case 'code':
-            echo esc_html( $discount->get_code() );
+            echo esc_html($discount->get_code());
             break;
         case 'amount':
-            echo wp_kses_post( $discount->get_formatted_amount() );
+            echo wp_kses_post($discount->get_formatted_amount());
             break;
         case 'usage':
-            echo wp_kses_post( $discount->get_usage() );
+            echo wp_kses_post($discount->get_usage());
             break;
         case 'start_date':
-            echo wp_kses_post( getpaid_format_date_value( $discount->get_start_date() ) );
+            echo wp_kses_post(getpaid_format_date_value($discount->get_start_date()));
             break;
         case 'expiry_date':
-            echo wp_kses_post( getpaid_format_date_value( $discount->get_expiration_date(), __( 'Never', 'invoicing' ) ) );
+            echo wp_kses_post(getpaid_format_date_value($discount->get_expiration_date(), __('Never', 'invoicing')));
             break;
     }
 }
 
-add_filter( 'post_row_actions', 'wpinv_post_row_actions', 90, 2 );
-function wpinv_post_row_actions( $actions, $post ) {
-    $post_type = ! empty( $post->post_type ) ? $post->post_type : '';
+add_filter('post_row_actions', 'wpinv_post_row_actions', 90, 2);
+function wpinv_post_row_actions($actions, $post) {
+    $post_type = !empty($post->post_type) ? $post->post_type : '';
 
-    if ( $post_type == 'wpi_discount' ) {
-        $actions = wpinv_discount_row_actions( $post, $actions );
+    if ($post_type == 'wpi_discount') {
+        $actions = wpinv_discount_row_actions($post, $actions);
     }
 
     return $actions;
 }
 
-function wpinv_discount_row_actions( $discount, $row_actions ) {
-    $row_actions  = array();
-    $edit_link = get_edit_post_link( $discount->ID );
-    $row_actions['edit'] = '<a href="' . esc_url( $edit_link ) . '">' . __( 'Edit', 'invoicing' ) . '</a>';
+function wpinv_discount_row_actions($discount, $row_actions) {
+    $row_actions = array();
+    $edit_link = get_edit_post_link($discount->ID);
+    $row_actions['edit'] = '<a href="' . esc_url($edit_link) . '">' . __('Edit', 'invoicing') . '</a>';
 
-    if ( in_array( strtolower( $discount->post_status ), array( 'publish' ) ) && wpinv_current_user_can( 'deactivate_discount', array( 'discount' => (int) $discount->ID ) ) ) {
+    if (in_array(strtolower($discount->post_status), array('publish')) && wpinv_current_user_can('deactivate_discount', array('discount' => (int) $discount->ID))) {
 
         $url = wp_nonce_url(
             add_query_arg(
@@ -57,13 +57,13 @@ 
             'getpaid-nonce',
             'getpaid-nonce'
         );
-		$anchor = __( 'Deactivate', 'invoicing' );
-		$title  = esc_attr__( 'Are you sure you want to deactivate this discount?', 'invoicing' );
+		$anchor = __('Deactivate', 'invoicing');
+		$title  = esc_attr__('Are you sure you want to deactivate this discount?', 'invoicing');
         $row_actions['deactivate'] = "<a href='$url' onclick='return confirm(\"$title\")'>$anchor</a>";
 
-    } elseif ( in_array( strtolower( $discount->post_status ), array( 'pending', 'draft' ) ) && wpinv_current_user_can( 'activate_discount', array( 'discount' => (int) $discount->ID ) ) ) {
+    } elseif (in_array(strtolower($discount->post_status), array('pending', 'draft')) && wpinv_current_user_can('activate_discount', array('discount' => (int) $discount->ID))) {
 
-        $url    = wp_nonce_url(
+        $url = wp_nonce_url(
             add_query_arg(
                 array(
                     'getpaid-admin-action' => 'activate_discount',
@@ -73,14 +73,14 @@ 
             'getpaid-nonce',
             'getpaid-nonce'
         );
-		$anchor = __( 'Activate', 'invoicing' );
-		$title  = esc_attr__( 'Are you sure you want to activate this discount?', 'invoicing' );
+		$anchor = __('Activate', 'invoicing');
+		$title  = esc_attr__('Are you sure you want to activate this discount?', 'invoicing');
         $row_actions['activate'] = "<a href='$url' onclick='return confirm(\"$title\")'>$anchor</a>";
 
     }
 
-    if ( wpinv_current_user_can( 'delete_discount', array( 'discount' => (int) $discount->ID ) ) ) {
-        $url    = esc_url(
+    if (wpinv_current_user_can('delete_discount', array('discount' => (int) $discount->ID))) {
+        $url = esc_url(
             wp_nonce_url(
                 add_query_arg(
                     array(
@@ -93,12 +93,12 @@ 
             )
     );
 
-        $anchor = __( 'Delete', 'invoicing' );
-        $title  = esc_attr__( 'Are you sure you want to delete this discount?', 'invoicing' );
+        $anchor = __('Delete', 'invoicing');
+        $title  = esc_attr__('Are you sure you want to delete this discount?', 'invoicing');
         $row_actions['delete'] = "<a href='$url' onclick='return confirm(\"$title\")'>$anchor</a>";
     }
 
-    $row_actions = apply_filters( 'wpinv_discount_row_actions', $row_actions, $discount );
+    $row_actions = apply_filters('wpinv_discount_row_actions', $row_actions, $discount);
 
     return $row_actions;
 }
@@ -106,68 +106,68 @@ 
 function wpinv_restrict_manage_posts() {
     global $typenow;
 
-    if ( 'wpi_discount' == $typenow ) {
+    if ('wpi_discount' == $typenow) {
         wpinv_discount_filters();
     }
 }
-add_action( 'restrict_manage_posts', 'wpinv_restrict_manage_posts', 10 );
+add_action('restrict_manage_posts', 'wpinv_restrict_manage_posts', 10);
 
 function wpinv_discount_filters() {
 
     ?>
     <select name="discount_type" id="dropdown_wpinv_discount_type">
-        <option value=""><?php esc_html_e( 'Show all types', 'invoicing' ); ?></option>
+        <option value=""><?php esc_html_e('Show all types', 'invoicing'); ?></option>
         <?php
             $types = wpinv_get_discount_types();
 
-            foreach ( $types as $name => $type ) {
-			echo '<option value="' . esc_attr( $name ) . '"';
+            foreach ($types as $name => $type) {
+			echo '<option value="' . esc_attr($name) . '"';
 
-			if ( isset( $_GET['discount_type'] ) ) {
-				selected( $name, sanitize_text_field( $_GET['discount_type'] ) );
+			if (isset($_GET['discount_type'])) {
+				selected($name, sanitize_text_field($_GET['discount_type']));
                 }
 
-			echo '>' . esc_html__( $type, 'invoicing' ) . '</option>';
+			echo '>' . esc_html__($type, 'invoicing') . '</option>';
             }
         ?>
     </select>
     <?php
 }
 
-function wpinv_request( $vars ) {
+function wpinv_request($vars) {
     global $typenow, $wp_post_statuses;
 
-    if ( getpaid_is_invoice_post_type( $typenow ) ) {
-        if ( ! isset( $vars['post_status'] ) ) {
-            $post_statuses = wpinv_get_invoice_statuses( false, false, $typenow );
+    if (getpaid_is_invoice_post_type($typenow)) {
+        if (!isset($vars['post_status'])) {
+            $post_statuses = wpinv_get_invoice_statuses(false, false, $typenow);
 
-            foreach ( $post_statuses as $status => $value ) {
-                if ( isset( $wp_post_statuses[ $status ] ) && false === $wp_post_statuses[ $status ]->show_in_admin_all_list ) {
-                    unset( $post_statuses[ $status ] );
+            foreach ($post_statuses as $status => $value) {
+                if (isset($wp_post_statuses[$status]) && false === $wp_post_statuses[$status]->show_in_admin_all_list) {
+                    unset($post_statuses[$status]);
                 }
             }
 
-            $vars['post_status'] = array_keys( $post_statuses );
+            $vars['post_status'] = array_keys($post_statuses);
         }
-} elseif ( 'wpi_discount' == $typenow ) {
-        $meta_query = ! empty( $vars['meta_query'] ) ? $vars['meta_query'] : array();
+} elseif ('wpi_discount' == $typenow) {
+        $meta_query = !empty($vars['meta_query']) ? $vars['meta_query'] : array();
         // Filter vat rule type
-        if ( isset( $_GET['discount_type'] ) && $_GET['discount_type'] !== '' ) {
+        if (isset($_GET['discount_type']) && $_GET['discount_type'] !== '') {
             $meta_query[] = array(
 				'key'     => '_wpi_discount_type',
-				'value'   => sanitize_key( urldecode( $_GET['discount_type'] ) ),
+				'value'   => sanitize_key(urldecode($_GET['discount_type'])),
 				'compare' => '=',
 			);
 			}
 
-        if ( ! empty( $meta_query ) ) {
+        if (!empty($meta_query)) {
             $vars['meta_query'] = $meta_query;
 			}
     }
 
     return $vars;
 }
-add_filter( 'request', 'wpinv_request' );
+add_filter('request', 'wpinv_request');
 
 /**
  * Create a page and store the ID in an option.
@@ -179,61 +179,61 @@ 
  * @param int $post_parent (default: 0) Parent for the new page
  * @return int page ID
  */
-function wpinv_create_page( $slug, $option = '', $page_title = '', $page_content = '', $post_parent = 0 ) {
+function wpinv_create_page($slug, $option = '', $page_title = '', $page_content = '', $post_parent = 0) {
     global $wpdb;
 
-    $option_value = wpinv_get_option( $option );
+    $option_value = wpinv_get_option($option);
 
-    if ( ! empty( $option_value ) && ( $page_object = get_post( $option_value ) ) ) {
-        if ( 'page' === $page_object->post_type && ! in_array( $page_object->post_status, array( 'pending', 'trash', 'future', 'auto-draft' ) ) ) {
+    if (!empty($option_value) && ($page_object = get_post($option_value))) {
+        if ('page' === $page_object->post_type && !in_array($page_object->post_status, array('pending', 'trash', 'future', 'auto-draft'))) {
             // Valid page is already in place
             return $page_object->ID;
         }
     }
 
-    if ( ! empty( $post_parent ) ) {
-        $page = get_page_by_path( $post_parent );
-        if ( $page ) {
+    if (!empty($post_parent)) {
+        $page = get_page_by_path($post_parent);
+        if ($page) {
             $post_parent = $page->ID;
         } else {
             $post_parent = '';
         }
     }
 
-    if ( strlen( $page_content ) > 0 ) {
+    if (strlen($page_content) > 0) {
         // Search for an existing page with the specified page content (typically a shortcode)
-        $valid_page_found = $wpdb->get_var( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE post_type='page' AND post_status NOT IN ( 'pending', 'trash', 'future', 'auto-draft' ) AND post_content LIKE %s LIMIT 1;", "%{$page_content}%" ) );
+        $valid_page_found = $wpdb->get_var($wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE post_type='page' AND post_status NOT IN ( 'pending', 'trash', 'future', 'auto-draft' ) AND post_content LIKE %s LIMIT 1;", "%{$page_content}%"));
     } else {
         // Search for an existing page with the specified page slug
-        $valid_page_found = $wpdb->get_var( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE post_type='page' AND post_status NOT IN ( 'pending', 'trash', 'future', 'auto-draft' )  AND post_name = %s LIMIT 1;", $slug ) );
+        $valid_page_found = $wpdb->get_var($wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE post_type='page' AND post_status NOT IN ( 'pending', 'trash', 'future', 'auto-draft' )  AND post_name = %s LIMIT 1;", $slug));
     }
 
-    $valid_page_found = apply_filters( 'wpinv_create_page_id', $valid_page_found, $slug, $page_content );
+    $valid_page_found = apply_filters('wpinv_create_page_id', $valid_page_found, $slug, $page_content);
 
-    if ( $valid_page_found ) {
-        if ( $option ) {
-            wpinv_update_option( $option, $valid_page_found );
+    if ($valid_page_found) {
+        if ($option) {
+            wpinv_update_option($option, $valid_page_found);
         }
         return $valid_page_found;
     }
 
     // Search for a matching valid trashed page
-    if ( strlen( $page_content ) > 0 ) {
+    if (strlen($page_content) > 0) {
         // Search for an existing page with the specified page content (typically a shortcode)
-        $trashed_page_found = $wpdb->get_var( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE post_type='page' AND post_status = 'trash' AND post_content LIKE %s LIMIT 1;", "%{$page_content}%" ) );
+        $trashed_page_found = $wpdb->get_var($wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE post_type='page' AND post_status = 'trash' AND post_content LIKE %s LIMIT 1;", "%{$page_content}%"));
     } else {
         // Search for an existing page with the specified page slug
-        $trashed_page_found = $wpdb->get_var( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE post_type='page' AND post_status = 'trash' AND post_name = %s LIMIT 1;", $slug ) );
+        $trashed_page_found = $wpdb->get_var($wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE post_type='page' AND post_status = 'trash' AND post_name = %s LIMIT 1;", $slug));
     }
 
-    if ( $trashed_page_found ) {
+    if ($trashed_page_found) {
         $page_id   = $trashed_page_found;
         $page_data = array(
             'ID'          => $page_id,
             'post_status' => 'publish',
             'post_parent' => $post_parent,
         );
-        wp_update_post( $page_data );
+        wp_update_post($page_data);
     } else {
         $page_data = array(
             'post_status'    => 'publish',
@@ -245,11 +245,11 @@ 
             'post_parent'    => $post_parent,
             'comment_status' => 'closed',
         );
-        $page_id = wp_insert_post( $page_data );
+        $page_id = wp_insert_post($page_data);
     }
 
-    if ( $option ) {
-        wpinv_update_option( $option, (int) $page_id );
+    if ($option) {
+        wpinv_update_option($option, (int) $page_id);
     }
 
     return $page_id;
@@ -262,11 +262,11 @@ 
  *
  * @return array
  */
-function wpinv_add_aui_screens( $screen_ids ) {
+function wpinv_add_aui_screens($screen_ids) {
 
     // load on these pages if set
-    $screen_ids = array_merge( $screen_ids, wpinv_get_screen_ids() );
+    $screen_ids = array_merge($screen_ids, wpinv_get_screen_ids());
 
     return $screen_ids;
 }
-add_filter( 'aui_screen_ids', 'wpinv_add_aui_screens' );
+add_filter('aui_screen_ids', 'wpinv_add_aui_screens');

includes/invoice-functions.php

Spacing +365 added lines, -365 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']);
         }
 }
 
@@ -958,43 +958,43 @@ 
  * @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 ( 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;
@@ -1005,47 +1005,47 @@ 
  *
  * @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.
@@ -1055,7 +1055,7 @@ 
  * @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();
@@ -1115,136 +1115,136 @@ 
  * @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()),
 
                 );
 
@@ -1255,13 +1255,13 @@ 
     // 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;
 
@@ -1300,12 +1300,12 @@ 
  * @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);
 
 }

includes/class-wpinv-ajax.php

Spacing +325 added lines, -325 removed lines

@@ -6,7 +6,7 @@ 
  * @package Invoicing
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * WPInv_Ajax class.
@@ -17,8 +17,8 @@ 
 	 * Hook in ajax handlers.
 	 */
 	public static function init() {
-		add_action( 'init', array( __CLASS__, 'define_ajax' ), 0 );
-		add_action( 'template_redirect', array( __CLASS__, 'do_wpinv_ajax' ), 0 );
+		add_action('init', array(__CLASS__, 'define_ajax'), 0);
+		add_action('template_redirect', array(__CLASS__, 'do_wpinv_ajax'), 0);
 		self::add_ajax_events();
     }
 
@@ -27,11 +27,11 @@ 
 	 */
 	public static function define_ajax() {
 
-		if ( ! empty( $_GET['wpinv-ajax'] ) ) {
-			getpaid_maybe_define_constant( 'DOING_AJAX', true );
-			getpaid_maybe_define_constant( 'WPInv_DOING_AJAX', true );
-			if ( ! WP_DEBUG || ( WP_DEBUG && ! WP_DEBUG_DISPLAY ) ) {
-				/** @scrutinizer ignore-unhandled */ @ini_set( 'display_errors', 0 );
+		if (!empty($_GET['wpinv-ajax'])) {
+			getpaid_maybe_define_constant('DOING_AJAX', true);
+			getpaid_maybe_define_constant('WPInv_DOING_AJAX', true);
+			if (!WP_DEBUG || (WP_DEBUG && !WP_DEBUG_DISPLAY)) {
+				/** @scrutinizer ignore-unhandled */ @ini_set('display_errors', 0);
 			}
 			$GLOBALS['wpdb']->hide_errors();
 		}
@@ -44,13 +44,13 @@ 
 	 * @since 1.0.18
 	 */
 	private static function wpinv_ajax_headers() {
-		if ( ! headers_sent() ) {
+		if (!headers_sent()) {
 			send_origin_headers();
 			send_nosniff_header();
 			nocache_headers();
-			header( 'Content-Type: text/html; charset=' . get_option( 'blog_charset' ) );
-			header( 'X-Robots-Tag: noindex' );
-			status_header( 200 );
+			header('Content-Type: text/html; charset=' . get_option('blog_charset'));
+			header('X-Robots-Tag: noindex');
+			status_header(200);
 		}
     }
 
@@ -60,16 +60,16 @@ 
 	public static function do_wpinv_ajax() {
 		global $wp_query;
 
-		if ( ! empty( $_GET['wpinv-ajax'] ) ) {
-			$wp_query->set( 'wpinv-ajax', sanitize_text_field( wp_unslash( $_GET['wpinv-ajax'] ) ) );
+		if (!empty($_GET['wpinv-ajax'])) {
+			$wp_query->set('wpinv-ajax', sanitize_text_field(wp_unslash($_GET['wpinv-ajax'])));
 		}
 
-		$action = $wp_query->get( 'wpinv-ajax' );
+		$action = $wp_query->get('wpinv-ajax');
 
-		if ( $action ) {
+		if ($action) {
 			self::wpinv_ajax_headers();
-			$action = sanitize_text_field( $action );
-			do_action( 'wpinv_ajax_' . $action );
+			$action = sanitize_text_field($action);
+			do_action('wpinv_ajax_' . $action);
 			wp_die();
 		}
 
@@ -106,36 +106,36 @@ 
             'file_upload'                   => true,
         );
 
-        foreach ( $ajax_events as $ajax_event => $nopriv ) {
-            add_action( 'wp_ajax_wpinv_' . $ajax_event, array( __CLASS__, $ajax_event ) );
-            add_action( 'wp_ajax_getpaid_' . $ajax_event, array( __CLASS__, $ajax_event ) );
+        foreach ($ajax_events as $ajax_event => $nopriv) {
+            add_action('wp_ajax_wpinv_' . $ajax_event, array(__CLASS__, $ajax_event));
+            add_action('wp_ajax_getpaid_' . $ajax_event, array(__CLASS__, $ajax_event));
 
-            if ( $nopriv ) {
-                add_action( 'wp_ajax_nopriv_wpinv_' . $ajax_event, array( __CLASS__, $ajax_event ) );
-                add_action( 'wp_ajax_nopriv_getpaid_' . $ajax_event, array( __CLASS__, $ajax_event ) );
-                add_action( 'wpinv_ajax_' . $ajax_event, array( __CLASS__, $ajax_event ) );
+            if ($nopriv) {
+                add_action('wp_ajax_nopriv_wpinv_' . $ajax_event, array(__CLASS__, $ajax_event));
+                add_action('wp_ajax_nopriv_getpaid_' . $ajax_event, array(__CLASS__, $ajax_event));
+                add_action('wpinv_ajax_' . $ajax_event, array(__CLASS__, $ajax_event));
             }
         }
     }
 
     public static function add_note() {
-        check_ajax_referer( 'add-invoice-note', '_nonce' );
+        check_ajax_referer('add-invoice-note', '_nonce');
 
-        $post_id   = absint( $_POST['post_id'] );
-        $note      = wp_kses_post( trim( stripslashes( $_POST['note'] ) ) );
-        $note_type = sanitize_text_field( $_POST['note_type'] );
+        $post_id   = absint($_POST['post_id']);
+        $note      = wp_kses_post(trim(stripslashes($_POST['note'])));
+        $note_type = sanitize_text_field($_POST['note_type']);
 
-        if ( ! wpinv_current_user_can( 'invoice_add_note', array( 'post_id' => $post_id, 'note_type' => $note_type ) ) ) {
+        if (!wpinv_current_user_can('invoice_add_note', array('post_id' => $post_id, 'note_type' => $note_type))) {
             die( -1 );
         }
 
         $is_customer_note = $note_type == 'customer' ? 1 : 0;
 
-        if ( $post_id > 0 ) {
-            $note_id = wpinv_insert_payment_note( $post_id, $note, $is_customer_note );
+        if ($post_id > 0) {
+            $note_id = wpinv_insert_payment_note($post_id, $note, $is_customer_note);
 
-            if ( $note_id > 0 && ! is_wp_error( $note_id ) ) {
-                wpinv_get_invoice_note_line_item( $note_id );
+            if ($note_id > 0 && !is_wp_error($note_id)) {
+                wpinv_get_invoice_note_line_item($note_id);
             }
         }
 
@@ -143,16 +143,16 @@ 
     }
 
     public static function delete_note() {
-        check_ajax_referer( 'delete-invoice-note', '_nonce' );
+        check_ajax_referer('delete-invoice-note', '_nonce');
 
-        $note_id = (int)$_POST['note_id'];
+        $note_id = (int) $_POST['note_id'];
 
-        if ( ! wpinv_current_user_can( 'invoice_delete_note', array( 'note_id' => $note_id ) ) ) {
+        if (!wpinv_current_user_can('invoice_delete_note', array('note_id' => $note_id))) {
             die( -1 );
         }
 
-        if ( $note_id > 0 ) {
-            wp_delete_comment( $note_id, true );
+        if ($note_id > 0) {
+            wp_delete_comment($note_id, true);
         }
 
         die();
@@ -169,35 +169,35 @@ 
      */
     public static function get_billing_details() {
         // Verify nonce.
-        check_ajax_referer( 'wpinv-nonce' );
+        check_ajax_referer('wpinv-nonce');
 
         // Do we have a user id?
         $user_id = (int) $_GET['user_id'];
-        $invoice_id = ! empty( $_REQUEST['post_id'] ) ? (int) $_REQUEST['post_id'] : 0;
+        $invoice_id = !empty($_REQUEST['post_id']) ? (int) $_REQUEST['post_id'] : 0;
 
-        if ( empty( $user_id ) || ! is_numeric( $user_id ) ) {
+        if (empty($user_id) || !is_numeric($user_id)) {
             die( -1 );
         }
 
         // Can the user manage the plugin?
-        if ( ! wpinv_current_user_can( 'invoice_get_billing_details', array( 'user_id' => $user_id, 'invoice_id' => $invoice_id ) ) ) {
+        if (!wpinv_current_user_can('invoice_get_billing_details', array('user_id' => $user_id, 'invoice_id' => $invoice_id))) {
             die( -1 );
         }
 
         // Fetch the billing details.
-        $billing_details    = wpinv_get_user_address( $user_id );
-        $billing_details    = apply_filters( 'wpinv_ajax_billing_details', $billing_details, $user_id );
+        $billing_details    = wpinv_get_user_address($user_id);
+        $billing_details    = apply_filters('wpinv_ajax_billing_details', $billing_details, $user_id);
 
         // unset the user id and email.
-        $to_ignore = array( 'user_id', 'email' );
+        $to_ignore = array('user_id', 'email');
 
-        foreach ( $to_ignore as $key ) {
-            if ( isset( $billing_details[ $key ] ) ) {
-                unset( $billing_details[ $key ] );
+        foreach ($to_ignore as $key) {
+            if (isset($billing_details[$key])) {
+                unset($billing_details[$key]);
             }
         }
 
-        wp_send_json_success( $billing_details );
+        wp_send_json_success($billing_details);
 
     }
 
@@ -207,47 +207,47 @@ 
     public static function check_new_user_email() {
 
         // Verify nonce.
-        check_ajax_referer( 'wpinv-nonce' );
+        check_ajax_referer('wpinv-nonce');
 
         // Can the user manage the plugin?
-        if ( ! wpinv_current_user_can_manage_invoicing() ) {
+        if (!wpinv_current_user_can_manage_invoicing()) {
             die( -1 );
         }
 
         // We need an email address.
-        if ( empty( $_GET['email'] ) ) {
-            esc_html_e( "Provide the new user's email address", 'invoicing' );
+        if (empty($_GET['email'])) {
+            esc_html_e("Provide the new user's email address", 'invoicing');
             exit;
         }
 
         // Ensure the email is valid.
-        $email = sanitize_email( $_GET['email'] );
-        if ( ! is_email( $email ) ) {
-            esc_html_e( 'Invalid email address', 'invoicing' );
+        $email = sanitize_email($_GET['email']);
+        if (!is_email($email)) {
+            esc_html_e('Invalid email address', 'invoicing');
             exit;
         }
 
         // And it does not exist.
-        $id = email_exists( $email );
-        if ( $id ) {
-            wp_send_json_success( compact( 'id' ) );
+        $id = email_exists($email);
+        if ($id) {
+            wp_send_json_success(compact('id'));
         }
 
-        wp_send_json_success( true );
+        wp_send_json_success(true);
     }
 
     public static function run_tool() {
-        check_ajax_referer( 'wpinv-nonce', '_nonce' );
-        if ( ! wpinv_current_user_can_manage_invoicing() ) {
+        check_ajax_referer('wpinv-nonce', '_nonce');
+        if (!wpinv_current_user_can_manage_invoicing()) {
             die( -1 );
         }
 
-        $tool = sanitize_text_field( $_POST['tool'] );
+        $tool = sanitize_text_field($_POST['tool']);
 
-        do_action( 'wpinv_run_tool' );
+        do_action('wpinv_run_tool');
 
-        if ( ! empty( $tool ) ) {
-            do_action( 'wpinv_tool_' . $tool );
+        if (!empty($tool)) {
+            do_action('wpinv_tool_' . $tool);
         }
     }
 
@@ -258,11 +258,11 @@ 
         global $getpaid_force_checkbox;
 
         // Is the request set up correctly?
-		if ( empty( $_GET['form'] ) && empty( $_GET['item'] ) && empty( $_GET['invoice'] ) ) {
+		if (empty($_GET['form']) && empty($_GET['item']) && empty($_GET['invoice'])) {
 			aui()->alert(
 				array(
 					'type'    => 'warning',
-					'content' => __( 'No payment form or item provided', 'invoicing' ),
+					'content' => __('No payment form or item provided', 'invoicing'),
                 ),
                 true
             );
@@ -270,29 +270,29 @@ 
         }
 
         // Payment form or button?
-		if ( ! empty( $_GET['form'] ) ) {
-            $form = sanitize_text_field( urldecode( $_GET['form'] ) );
+		if (!empty($_GET['form'])) {
+            $form = sanitize_text_field(urldecode($_GET['form']));
 
-            if ( false !== strpos( $form, '|' ) ) {
-                $form_pos = strpos( $form, '|' );
-                $_items   = getpaid_convert_items_to_array( substr( $form, $form_pos + 1 ) );
-                $form     = substr( $form, 0, $form_pos );
+            if (false !== strpos($form, '|')) {
+                $form_pos = strpos($form, '|');
+                $_items   = getpaid_convert_items_to_array(substr($form, $form_pos + 1));
+                $form     = substr($form, 0, $form_pos);
 
                 // Retrieve appropriate payment form.
-                $payment_form = new GetPaid_Payment_Form( $form );
-                $payment_form = $payment_form->exists() ? $payment_form : new GetPaid_Payment_Form( wpinv_get_default_payment_form() );
+                $payment_form = new GetPaid_Payment_Form($form);
+                $payment_form = $payment_form->exists() ? $payment_form : new GetPaid_Payment_Form(wpinv_get_default_payment_form());
 
                 $items    = array();
                 $item_ids = array();
 
-                foreach ( $_items as $item_id => $qty ) {
-                    if ( ! in_array( $item_id, $item_ids ) ) {
-                        $item = new GetPaid_Form_Item( $item_id );
-                        $item->set_quantity( $qty );
+                foreach ($_items as $item_id => $qty) {
+                    if (!in_array($item_id, $item_ids)) {
+                        $item = new GetPaid_Form_Item($item_id);
+                        $item->set_quantity($qty);
 
-                        if ( 0 == $qty ) {
-                            $item->set_allow_quantities( true );
-                            $item->set_is_required( false );
+                        if (0 == $qty) {
+                            $item->set_allow_quantities(true);
+                            $item->set_is_required(false);
                             $getpaid_force_checkbox = true;
                         }
 
@@ -301,32 +301,32 @@ 
                     }
                 }
 
-                if ( ! $payment_form->is_default() ) {
+                if (!$payment_form->is_default()) {
 
-                    foreach ( $payment_form->get_items() as $item ) {
-                        if ( ! in_array( $item->get_id(), $item_ids ) ) {
+                    foreach ($payment_form->get_items() as $item) {
+                        if (!in_array($item->get_id(), $item_ids)) {
                             $item_ids[] = $item->get_id();
                             $items[]    = $item;
                         }
                     }
                 }
 
-                $payment_form->set_items( $items );
-                $extra_items     = esc_attr( getpaid_convert_items_to_string( $_items ) );
-                $extra_items_key = md5( NONCE_KEY . AUTH_KEY . $extra_items );
+                $payment_form->set_items($items);
+                $extra_items     = esc_attr(getpaid_convert_items_to_string($_items));
+                $extra_items_key = md5(NONCE_KEY . AUTH_KEY . $extra_items);
                 $extra_items     = "<input type='hidden' name='getpaid-form-items' value='$extra_items' />";
                 $extra_items    .= "<input type='hidden' name='getpaid-form-items-key' value='$extra_items_key' />";
-                $payment_form->display( $extra_items );
+                $payment_form->display($extra_items);
                 $getpaid_force_checkbox = false;
 
             } else {
-                getpaid_display_payment_form( $form );
+                getpaid_display_payment_form($form);
             }
-} elseif ( ! empty( $_GET['invoice'] ) ) {
-		    getpaid_display_invoice_payment_form( (int) urldecode( $_GET['invoice'] ) );
+} elseif (!empty($_GET['invoice'])) {
+		    getpaid_display_invoice_payment_form((int) urldecode($_GET['invoice']));
         } else {
-			$items = getpaid_convert_items_to_array( sanitize_text_field( urldecode( $_GET['item'] ) ) );
-		    getpaid_display_item_payment_form( $items );
+			$items = getpaid_convert_items_to_array(sanitize_text_field(urldecode($_GET['item'])));
+		    getpaid_display_item_payment_form($items);
         }
 
         exit;
@@ -341,14 +341,14 @@ 
     public static function payment_form() {
 
         // ... form fields...
-        if ( empty( $_POST['getpaid_payment_form_submission'] ) ) {
-            esc_html_e( 'Error: Reload the page and try again.', 'invoicing' );
+        if (empty($_POST['getpaid_payment_form_submission'])) {
+            esc_html_e('Error: Reload the page and try again.', 'invoicing');
             exit;
         }
 
         // Process the payment form.
-        $checkout_class = apply_filters( 'getpaid_checkout_class', 'GetPaid_Checkout' );
-        $checkout       = new $checkout_class( new GetPaid_Payment_Form_Submission() );
+        $checkout_class = apply_filters('getpaid_checkout_class', 'GetPaid_Checkout');
+        $checkout       = new $checkout_class(new GetPaid_Payment_Form_Submission());
         $checkout->process_checkout();
 
         exit;
@@ -361,55 +361,55 @@ 
      */
     public static function get_payment_form_states_field() {
 
-        if ( empty( $_GET['country'] ) || empty( $_GET['form'] ) ) {
+        if (empty($_GET['country']) || empty($_GET['form'])) {
             exit;
         }
 
-        $elements = getpaid_get_payment_form_elements( (int) $_GET['form'] );
+        $elements = getpaid_get_payment_form_elements((int) $_GET['form']);
 
-        if ( empty( $elements ) ) {
+        if (empty($elements)) {
             exit;
         }
 
         $address_fields = array();
-        foreach ( $elements as $element ) {
-            if ( 'address' === $element['type'] ) {
+        foreach ($elements as $element) {
+            if ('address' === $element['type']) {
                 $address_fields = $element;
                 break;
             }
         }
 
-        if ( empty( $address_fields ) ) {
+        if (empty($address_fields)) {
             exit;
         }
 
-        foreach ( $address_fields['fields'] as $address_field ) {
+        foreach ($address_fields['fields'] as $address_field) {
 
-            if ( 'wpinv_state' == $address_field['name'] ) {
+            if ('wpinv_state' == $address_field['name']) {
 
-                $wrap_class  = getpaid_get_form_element_grid_class( $address_field );
-                $wrap_class  = esc_attr( "$wrap_class getpaid-address-field-wrapper" );
-                $placeholder = empty( $address_field['placeholder'] ) ? '' : esc_attr( $address_field['placeholder'] );
-                $description = empty( $address_field['description'] ) ? '' : wp_kses_post( $address_field['description'] );
-                $value       = is_user_logged_in() ? get_user_meta( get_current_user_id(), '_wpinv_state', true ) : '';
-                $label       = empty( $address_field['label'] ) ? '' : wp_kses_post( $address_field['label'] );
+                $wrap_class  = getpaid_get_form_element_grid_class($address_field);
+                $wrap_class  = esc_attr("$wrap_class getpaid-address-field-wrapper");
+                $placeholder = empty($address_field['placeholder']) ? '' : esc_attr($address_field['placeholder']);
+                $description = empty($address_field['description']) ? '' : wp_kses_post($address_field['description']);
+                $value       = is_user_logged_in() ? get_user_meta(get_current_user_id(), '_wpinv_state', true) : '';
+                $label       = empty($address_field['label']) ? '' : wp_kses_post($address_field['label']);
 
-                if ( ! empty( $address_field['required'] ) ) {
+                if (!empty($address_field['required'])) {
                     $label .= "<span class='text-danger'> *</span>";
                 }
 
                 $html = getpaid_get_states_select_markup(
-                    sanitize_text_field( $_GET['country'] ),
+                    sanitize_text_field($_GET['country']),
                     $value,
                     $placeholder,
                     $label,
                     $description,
-                    ! empty( $address_field['required'] ),
+                    !empty($address_field['required']),
                     $wrap_class,
-                    sanitize_text_field( $_GET['name'] )
+                    sanitize_text_field($_GET['name'])
                 );
 
-                wp_send_json_success( $html );
+                wp_send_json_success($html);
                 exit;
 
             }
@@ -424,66 +424,66 @@ 
     public static function recalculate_invoice_totals() {
 
         // Verify nonce.
-        check_ajax_referer( 'wpinv-nonce' );
+        check_ajax_referer('wpinv-nonce');
 
-        if ( ! wpinv_current_user_can_manage_invoicing() ) {
+        if (!wpinv_current_user_can_manage_invoicing()) {
             exit;
         }
 
         // We need an invoice.
-        if ( empty( $_POST['post_id'] ) ) {
+        if (empty($_POST['post_id'])) {
             exit;
         }
 
         // Fetch the invoice.
-        $invoice = new WPInv_Invoice( intval( $_POST['post_id'] ) );
+        $invoice = new WPInv_Invoice(intval($_POST['post_id']));
 
         // Ensure it exists.
-        if ( ! $invoice->get_id() ) {
+        if (!$invoice->get_id()) {
             exit;
         }
 
         // Maybe set the country, state, currency.
-        foreach ( array( 'country', 'state', 'currency', 'vat_number', 'discount_code' ) as $key ) {
-            if ( isset( $_POST[ $key ] ) ) {
+        foreach (array('country', 'state', 'currency', 'vat_number', 'discount_code') as $key) {
+            if (isset($_POST[$key])) {
                 $method = "set_$key";
-                $invoice->$method( sanitize_text_field( $_POST[ $key ] ) );
+                $invoice->$method(sanitize_text_field($_POST[$key]));
             }
         }
 
         // Maybe disable taxes.
-        $invoice->set_disable_taxes( ! empty( $_POST['taxes'] ) );
+        $invoice->set_disable_taxes(!empty($_POST['taxes']));
 
         // Discount code.
-        if ( ! $invoice->is_paid() && ! $invoice->is_refunded() ) {
-            $discount = new WPInv_Discount( $invoice->get_discount_code() );
-            if ( $discount->exists() ) {
-                $invoice->add_discount( getpaid_calculate_invoice_discount( $invoice, $discount ) );
+        if (!$invoice->is_paid() && !$invoice->is_refunded()) {
+            $discount = new WPInv_Discount($invoice->get_discount_code());
+            if ($discount->exists()) {
+                $invoice->add_discount(getpaid_calculate_invoice_discount($invoice, $discount));
             } else {
-                $invoice->remove_discount( 'discount_code' );
+                $invoice->remove_discount('discount_code');
             }
         }
 
         // Recalculate totals.
         $invoice->recalculate_total();
 
-        $total        = wpinv_price( $invoice->get_total(), $invoice->get_currency() );
-        $suscriptions = getpaid_get_invoice_subscriptions( $invoice );
-        if ( is_a( $suscriptions, 'WPInv_Subscription' ) && $invoice->is_recurring() && $invoice->is_parent() && $invoice->get_total() != $invoice->get_recurring_total() ) {
-            $recurring_total = wpinv_price( $invoice->get_recurring_total(), $invoice->get_currency() );
-            $total          .= '<small class="form-text text-muted">' . sprintf( __( 'Recurring Price: %s', 'invoicing' ), $recurring_total ) . '</small>';
+        $total        = wpinv_price($invoice->get_total(), $invoice->get_currency());
+        $suscriptions = getpaid_get_invoice_subscriptions($invoice);
+        if (is_a($suscriptions, 'WPInv_Subscription') && $invoice->is_recurring() && $invoice->is_parent() && $invoice->get_total() != $invoice->get_recurring_total()) {
+            $recurring_total = wpinv_price($invoice->get_recurring_total(), $invoice->get_currency());
+            $total          .= '<small class="form-text text-muted">' . sprintf(__('Recurring Price: %s', 'invoicing'), $recurring_total) . '</small>';
         }
 
         $totals = array(
-            'subtotal' => wpinv_price( $invoice->get_subtotal(), $invoice->get_currency() ),
-            'discount' => wpinv_price( $invoice->get_total_discount(), $invoice->get_currency() ),
-            'tax'      => wpinv_price( $invoice->get_total_tax(), $invoice->get_currency() ),
+            'subtotal' => wpinv_price($invoice->get_subtotal(), $invoice->get_currency()),
+            'discount' => wpinv_price($invoice->get_total_discount(), $invoice->get_currency()),
+            'tax'      => wpinv_price($invoice->get_total_tax(), $invoice->get_currency()),
             'total'    => $total,
         );
 
-        $totals = apply_filters( 'getpaid_invoice_totals', $totals, $invoice );
+        $totals = apply_filters('getpaid_invoice_totals', $totals, $invoice);
 
-        wp_send_json_success( compact( 'totals' ) );
+        wp_send_json_success(compact('totals'));
     }
 
     /**
@@ -492,33 +492,33 @@ 
     public static function get_invoice_items() {
 
         // Verify nonce.
-        check_ajax_referer( 'wpinv-nonce' );
+        check_ajax_referer('wpinv-nonce');
 
-        if ( ! wpinv_current_user_can_manage_invoicing() ) {
+        if (!wpinv_current_user_can_manage_invoicing()) {
             exit;
         }
 
         // We need an invoice and items.
-        if ( empty( $_POST['post_id'] ) ) {
+        if (empty($_POST['post_id'])) {
             exit;
         }
 
         // Fetch the invoice.
-        $invoice = new WPInv_Invoice( intval( $_POST['post_id'] ) );
+        $invoice = new WPInv_Invoice(intval($_POST['post_id']));
 
         // Ensure it exists.
-        if ( ! $invoice->get_id() ) {
+        if (!$invoice->get_id()) {
             exit;
         }
 
         // Return an array of invoice items.
         $items = array();
 
-        foreach ( $invoice->get_items() as $item ) {
-            $items[] = $item->prepare_data_for_invoice_edit_ajax( $invoice->get_currency(), $invoice->is_renewal() );
+        foreach ($invoice->get_items() as $item) {
+            $items[] = $item->prepare_data_for_invoice_edit_ajax($invoice->get_currency(), $invoice->is_renewal());
         }
 
-        wp_send_json_success( compact( 'items' ) );
+        wp_send_json_success(compact('items'));
     }
 
     /**
@@ -527,50 +527,50 @@ 
     public static function edit_invoice_item() {
 
         // Verify nonce.
-        check_ajax_referer( 'wpinv-nonce' );
+        check_ajax_referer('wpinv-nonce');
 
-        if ( ! wpinv_current_user_can_manage_invoicing() ) {
+        if (!wpinv_current_user_can_manage_invoicing()) {
             exit;
         }
 
         // We need an invoice and item details.
-        if ( empty( $_POST['post_id'] ) || empty( $_POST['data'] ) ) {
+        if (empty($_POST['post_id']) || empty($_POST['data'])) {
             exit;
         }
 
         // Fetch the invoice.
-        $invoice = new WPInv_Invoice( intval( $_POST['post_id'] ) );
+        $invoice = new WPInv_Invoice(intval($_POST['post_id']));
 
         // Ensure it exists and its not been paid for.
-        if ( ! $invoice->get_id() || $invoice->is_paid() || $invoice->is_refunded() ) {
+        if (!$invoice->get_id() || $invoice->is_paid() || $invoice->is_refunded()) {
             exit;
         }
 
         // Format the data.
-        $data = wp_kses_post_deep( wp_unslash( wp_list_pluck( $_POST['data'], 'value', 'field' ) ) );
+        $data = wp_kses_post_deep(wp_unslash(wp_list_pluck($_POST['data'], 'value', 'field')));
 
         // Ensure that we have an item id.
-        if ( empty( $data['id'] ) ) {
+        if (empty($data['id'])) {
             exit;
         }
 
         // Abort if the invoice does not have the specified item.
-        $item = $invoice->get_item( (int) $data['id'] );
+        $item = $invoice->get_item((int) $data['id']);
 
-        if ( empty( $item ) ) {
+        if (empty($item)) {
             exit;
         }
 
         // Update the item.
-        $item->set_price( getpaid_standardize_amount( $data['price'] ) );
-        $item->set_name( sanitize_text_field( $data['name'] ) );
-        $item->set_description( wp_kses_post( $data['description'] ) );
-        $item->set_quantity( floatval( $data['quantity'] ) );
+        $item->set_price(getpaid_standardize_amount($data['price']));
+        $item->set_name(sanitize_text_field($data['name']));
+        $item->set_description(wp_kses_post($data['description']));
+        $item->set_quantity(floatval($data['quantity']));
 
         // Add it to the invoice.
-        $error = $invoice->add_item( $item );
+        $error = $invoice->add_item($item);
         $alert = false;
-        if ( is_wp_error( $error ) ) {
+        if (is_wp_error($error)) {
             $alert = $error->get_error_message();
         }
 
@@ -583,11 +583,11 @@ 
         // Return an array of invoice items.
         $items = array();
 
-        foreach ( $invoice->get_items() as $item ) {
-            $items[] = $item->prepare_data_for_invoice_edit_ajax( $invoice->get_currency() );
+        foreach ($invoice->get_items() as $item) {
+            $items[] = $item->prepare_data_for_invoice_edit_ajax($invoice->get_currency());
         }
 
-        wp_send_json_success( compact( 'items', 'alert' ) );
+        wp_send_json_success(compact('items', 'alert'));
     }
 
     /**
@@ -596,57 +596,57 @@ 
     public static function create_invoice_item() {
 
         // Verify nonce.
-        check_ajax_referer( 'wpinv-nonce' );
+        check_ajax_referer('wpinv-nonce');
 
         // We need an invoice and item details.
-        if ( empty( $_POST['invoice_id'] ) || empty( $_POST['_wpinv_quick'] ) ) {
+        if (empty($_POST['invoice_id']) || empty($_POST['_wpinv_quick'])) {
             exit;
         }
 
         // Fetch the invoice.
-        $invoice = new WPInv_Invoice( intval( $_POST['invoice_id'] ) );
+        $invoice = new WPInv_Invoice(intval($_POST['invoice_id']));
 
         // Ensure it exists and its not been paid for.
-        if ( ! $invoice->get_id() || $invoice->is_paid() || $invoice->is_refunded() ) {
+        if (!$invoice->get_id() || $invoice->is_paid() || $invoice->is_refunded()) {
             exit;
         }
 
-        if ( ! wpinv_current_user_can( 'invoice_create_item', array( 'invoice' => $invoice ) ) ) {
+        if (!wpinv_current_user_can('invoice_create_item', array('invoice' => $invoice))) {
             exit;
         }
 
         // Format the data.
-        $data = wp_kses_post_deep( wp_unslash( $_POST['_wpinv_quick'] ) );
+        $data = wp_kses_post_deep(wp_unslash($_POST['_wpinv_quick']));
 
         $item = new WPInv_Item();
-        $item->set_price( getpaid_standardize_amount( $data['price'] ) );
-        $item->set_name( sanitize_text_field( $data['name'] ) );
-        $item->set_description( wp_kses_post( $data['description'] ) );
-        $item->set_type( sanitize_text_field( $data['type'] ) );
-        $item->set_vat_rule( sanitize_text_field( $data['vat_rule'] ) );
-        $item->set_vat_class( sanitize_text_field( $data['vat_class'] ) );
-        $item->set_status( 'publish' );
+        $item->set_price(getpaid_standardize_amount($data['price']));
+        $item->set_name(sanitize_text_field($data['name']));
+        $item->set_description(wp_kses_post($data['description']));
+        $item->set_type(sanitize_text_field($data['type']));
+        $item->set_vat_rule(sanitize_text_field($data['vat_rule']));
+        $item->set_vat_class(sanitize_text_field($data['vat_class']));
+        $item->set_status('publish');
         $item->save();
 
-        if ( ! $item->exists() ) {
-            $alert = __( 'Could not create invoice item. Please try again.', 'invoicing' );
-            wp_send_json_success( compact( 'alert' ) );
+        if (!$item->exists()) {
+            $alert = __('Could not create invoice item. Please try again.', 'invoicing');
+            wp_send_json_success(compact('alert'));
         }
 
-        if ( ! empty( $data['one-time'] ) ) {
-            update_post_meta( $item->get_id(), '_wpinv_one_time', 'yes' );
+        if (!empty($data['one-time'])) {
+            update_post_meta($item->get_id(), '_wpinv_one_time', 'yes');
         }
 
-        $item = new GetPaid_Form_Item( $item->get_id() );
-        $item->set_quantity( floatval( $data['qty'] ) );
+        $item = new GetPaid_Form_Item($item->get_id());
+        $item->set_quantity(floatval($data['qty']));
 
         // Add it to the invoice.
-        $error = $invoice->add_item( $item );
+        $error = $invoice->add_item($item);
         $alert = false;
 
-        if ( is_wp_error( $error ) ) {
+        if (is_wp_error($error)) {
             $alert = $error->get_error_message();
-            wp_send_json_success( compact( 'alert' ) );
+            wp_send_json_success(compact('alert'));
          }
 
         // Update totals.
@@ -659,9 +659,9 @@ 
         $invoice->recalculate_total();
         $invoice->save();
         ob_start();
-        GetPaid_Meta_Box_Invoice_Items::output_row( GetPaid_Meta_Box_Invoice_Items::get_columns( $invoice ), $item, $invoice );
+        GetPaid_Meta_Box_Invoice_Items::output_row(GetPaid_Meta_Box_Invoice_Items::get_columns($invoice), $item, $invoice);
         $row = ob_get_clean();
-        wp_send_json_success( compact( 'row' ) );
+        wp_send_json_success(compact('row'));
     }
 
     /**
@@ -670,33 +670,33 @@ 
     public static function remove_invoice_item() {
 
         // Verify nonce.
-        check_ajax_referer( 'wpinv-nonce' );
+        check_ajax_referer('wpinv-nonce');
 
-        if ( ! wpinv_current_user_can_manage_invoicing() ) {
+        if (!wpinv_current_user_can_manage_invoicing()) {
             exit;
         }
 
         // We need an invoice and an item.
-        if ( empty( $_POST['post_id'] ) || empty( $_POST['item_id'] ) ) {
+        if (empty($_POST['post_id']) || empty($_POST['item_id'])) {
             exit;
         }
 
         // Fetch the invoice.
-        $invoice = new WPInv_Invoice( intval( $_POST['post_id'] ) );
+        $invoice = new WPInv_Invoice(intval($_POST['post_id']));
 
         // Ensure it exists and its not been paid for.
-        if ( ! $invoice->get_id() || $invoice->is_paid() || $invoice->is_refunded() ) {
+        if (!$invoice->get_id() || $invoice->is_paid() || $invoice->is_refunded()) {
             exit;
         }
 
         // Abort if the invoice does not have the specified item.
-        $item = $invoice->get_item( (int) $_POST['item_id'] );
+        $item = $invoice->get_item((int) $_POST['item_id']);
 
-        if ( empty( $item ) ) {
+        if (empty($item)) {
             exit;
         }
 
-        $invoice->remove_item( (int) $_POST['item_id'] );
+        $invoice->remove_item((int) $_POST['item_id']);
 
         // Update totals.
         $invoice->recalculate_total();
@@ -707,11 +707,11 @@ 
         // Return an array of invoice items.
         $items = array();
 
-        foreach ( $invoice->get_items() as $item ) {
-            $items[] = $item->prepare_data_for_invoice_edit_ajax( $invoice->get_currency() );
+        foreach ($invoice->get_items() as $item) {
+            $items[] = $item->prepare_data_for_invoice_edit_ajax($invoice->get_currency());
         }
 
-        wp_send_json_success( compact( 'items' ) );
+        wp_send_json_success(compact('items'));
     }
 
     /**
@@ -720,68 +720,68 @@ 
     public static function recalculate_full_prices() {
 
         // Verify nonce.
-        check_ajax_referer( 'wpinv-nonce' );
+        check_ajax_referer('wpinv-nonce');
 
         // We need an invoice and item.
-        if ( empty( $_POST['post_id'] ) ) {
+        if (empty($_POST['post_id'])) {
             exit;
         }
 
         // Fetch the invoice.
-        $invoice = new WPInv_Invoice( intval( $_POST['post_id'] ) );
+        $invoice = new WPInv_Invoice(intval($_POST['post_id']));
         $alert   = false;
 
         // Ensure it exists and its not been paid for.
-        if ( ! $invoice->get_id() || $invoice->is_paid() || $invoice->is_refunded() ) {
+        if (!$invoice->get_id() || $invoice->is_paid() || $invoice->is_refunded()) {
             exit;
         }
 
-        if ( ! wpinv_current_user_can( 'invoice_recalculate_full_prices', array( 'invoice' => $invoice ) ) ) {
+        if (!wpinv_current_user_can('invoice_recalculate_full_prices', array('invoice' => $invoice))) {
             exit;
         }
 
-        $invoice->set_items( array() );
+        $invoice->set_items(array());
 
-        if ( ! empty( $_POST['getpaid_items'] ) ) {
+        if (!empty($_POST['getpaid_items'])) {
 
-            foreach ( wp_kses_post_deep( $_POST['getpaid_items'] ) as $item_id => $args ) {
-                $item = new GetPaid_Form_Item( $item_id );
+            foreach (wp_kses_post_deep($_POST['getpaid_items']) as $item_id => $args) {
+                $item = new GetPaid_Form_Item($item_id);
 
-                if ( $item->exists() ) {
-                    $item->set_price( getpaid_standardize_amount( $args['price'] ) );
-                    $item->set_quantity( floatval( $args['quantity'] ) );
-                    $item->set_name( sanitize_text_field( $args['name'] ) );
-                    $item->set_description( wp_kses_post( $args['description'] ) );
-                    $invoice->add_item( $item );
+                if ($item->exists()) {
+                    $item->set_price(getpaid_standardize_amount($args['price']));
+                    $item->set_quantity(floatval($args['quantity']));
+                    $item->set_name(sanitize_text_field($args['name']));
+                    $item->set_description(wp_kses_post($args['description']));
+                    $invoice->add_item($item);
                 }
             }
 }
 
-        $invoice->set_disable_taxes( ! empty( $_POST['disable_taxes'] ) );
+        $invoice->set_disable_taxes(!empty($_POST['disable_taxes']));
 
         // Maybe set the country, state, currency.
-        foreach ( array( 'wpinv_country', 'wpinv_state', 'wpinv_currency', 'wpinv_vat_number', 'wpinv_discount_code' ) as $key ) {
-            if ( isset( $_POST[ $key ] ) ) {
-                $_key   = str_replace( 'wpinv_', '', $key );
+        foreach (array('wpinv_country', 'wpinv_state', 'wpinv_currency', 'wpinv_vat_number', 'wpinv_discount_code') as $key) {
+            if (isset($_POST[$key])) {
+                $_key   = str_replace('wpinv_', '', $key);
                 $method = "set_$_key";
-                $invoice->$method( sanitize_text_field( $_POST[ $key ] ) );
+                $invoice->$method(sanitize_text_field($_POST[$key]));
             }
         }
 
-        $discount = new WPInv_Discount( $invoice->get_discount_code() );
-        if ( $discount->exists() ) {
-            $invoice->add_discount( getpaid_calculate_invoice_discount( $invoice, $discount ) );
+        $discount = new WPInv_Discount($invoice->get_discount_code());
+        if ($discount->exists()) {
+            $invoice->add_discount(getpaid_calculate_invoice_discount($invoice, $discount));
         } else {
-            $invoice->remove_discount( 'discount_code' );
+            $invoice->remove_discount('discount_code');
         }
 
         // Save the invoice.
         $invoice->recalculate_total();
         $invoice->save();
         ob_start();
-        GetPaid_Meta_Box_Invoice_Items::output( get_post( $invoice->get_id() ), $invoice );
+        GetPaid_Meta_Box_Invoice_Items::output(get_post($invoice->get_id()), $invoice);
         $table = ob_get_clean();
-        wp_send_json_success( compact( 'table' ) );
+        wp_send_json_success(compact('table'));
     }
 
     /**
@@ -790,43 +790,43 @@ 
     public static function admin_add_invoice_item() {
 
         // Verify nonce.
-        check_ajax_referer( 'wpinv-nonce' );
+        check_ajax_referer('wpinv-nonce');
 
         // We need an invoice and item.
-        if ( empty( $_POST['post_id'] ) || empty( $_POST['item_id'] ) ) {
+        if (empty($_POST['post_id']) || empty($_POST['item_id'])) {
             exit;
         }
 
         // Fetch the invoice.
-        $invoice = new WPInv_Invoice( intval( $_POST['post_id'] ) );
+        $invoice = new WPInv_Invoice(intval($_POST['post_id']));
         $alert   = false;
 
         // Ensure it exists and its not been paid for.
-        if ( ! $invoice->get_id() || $invoice->is_paid() || $invoice->is_refunded() ) {
+        if (!$invoice->get_id() || $invoice->is_paid() || $invoice->is_refunded()) {
             exit;
         }
 
         // Add the item.
-        $item  = new GetPaid_Form_Item( (int) $_POST['item_id'] );
+        $item = new GetPaid_Form_Item((int) $_POST['item_id']);
 
-        if ( ! wpinv_current_user_can( 'invoice_add_item', array( 'invoice' => $invoice, 'invoice_item' => $item ) ) ) {
+        if (!wpinv_current_user_can('invoice_add_item', array('invoice' => $invoice, 'invoice_item' => $item))) {
             exit;
         }
 
-        $error = $invoice->add_item( $item );
+        $error = $invoice->add_item($item);
 
-        if ( is_wp_error( $error ) ) {
+        if (is_wp_error($error)) {
             $alert = $error->get_error_message();
-            wp_send_json_success( compact( 'alert' ) );
+            wp_send_json_success(compact('alert'));
         }
 
         // Save the invoice.
         $invoice->recalculate_total();
         $invoice->save();
         ob_start();
-        GetPaid_Meta_Box_Invoice_Items::output_row( GetPaid_Meta_Box_Invoice_Items::get_columns( $invoice ), $item, $invoice );
+        GetPaid_Meta_Box_Invoice_Items::output_row(GetPaid_Meta_Box_Invoice_Items::get_columns($invoice), $item, $invoice);
         $row = ob_get_clean();
-        wp_send_json_success( compact( 'row' ) );
+        wp_send_json_success(compact('row'));
     }
 
     /**
@@ -835,39 +835,39 @@ 
     public static function add_invoice_items() {
 
         // Verify nonce.
-        check_ajax_referer( 'wpinv-nonce' );
+        check_ajax_referer('wpinv-nonce');
 
-        if ( ! wpinv_current_user_can_manage_invoicing() ) {
+        if (!wpinv_current_user_can_manage_invoicing()) {
             exit;
         }
 
         // We need an invoice and items.
-        if ( empty( $_POST['post_id'] ) || empty( $_POST['items'] ) ) {
+        if (empty($_POST['post_id']) || empty($_POST['items'])) {
             exit;
         }
 
         // Fetch the invoice.
-        $invoice = new WPInv_Invoice( intval( $_POST['post_id'] ) );
+        $invoice = new WPInv_Invoice(intval($_POST['post_id']));
         $alert   = false;
 
         // Ensure it exists and its not been paid for.
-        if ( ! $invoice->get_id() || $invoice->is_paid() || $invoice->is_refunded() ) {
+        if (!$invoice->get_id() || $invoice->is_paid() || $invoice->is_refunded()) {
             exit;
         }
 
         // Add the items.
-        foreach ( wp_kses_post_deep( wp_unslash( $_POST['items'] ) ) as $data ) {
+        foreach (wp_kses_post_deep(wp_unslash($_POST['items'])) as $data) {
 
-            $item = new GetPaid_Form_Item( (int) $data['id'] );
+            $item = new GetPaid_Form_Item((int) $data['id']);
 
-            if ( is_numeric( $data['qty'] ) && (float) $data['qty'] > 0 ) {
-                $item->set_quantity( floatval( $data['qty'] ) );
+            if (is_numeric($data['qty']) && (float) $data['qty'] > 0) {
+                $item->set_quantity(floatval($data['qty']));
             }
 
-            if ( $item->get_id() > 0 ) {
-                $error = $invoice->add_item( $item );
+            if ($item->get_id() > 0) {
+                $error = $invoice->add_item($item);
 
-                if ( is_wp_error( $error ) ) {
+                if (is_wp_error($error)) {
                     $alert = $error->get_error_message();
                 }
 }
@@ -880,11 +880,11 @@ 
         // Return an array of invoice items.
         $items = array();
 
-        foreach ( $invoice->get_items() as $item ) {
-            $items[] = $item->prepare_data_for_invoice_edit_ajax( $invoice->get_currency() );
+        foreach ($invoice->get_items() as $item) {
+            $items[] = $item->prepare_data_for_invoice_edit_ajax($invoice->get_currency());
         }
 
-        wp_send_json_success( compact( 'items', 'alert' ) );
+        wp_send_json_success(compact('items', 'alert'));
     }
 
     /**
@@ -893,15 +893,15 @@ 
     public static function get_invoicing_items() {
 
         // Verify nonce.
-        check_ajax_referer( 'wpinv-nonce' );
+        check_ajax_referer('wpinv-nonce');
 
-        if ( ! wpinv_current_user_can_manage_invoicing() ) {
+        if (!wpinv_current_user_can_manage_invoicing()) {
             exit;
         }
 
         // We need a search term.
-        if ( empty( $_GET['search'] ) ) {
-            wp_send_json_success( array() );
+        if (empty($_GET['search'])) {
+            wp_send_json_success(array());
         }
 
         // Retrieve items.
@@ -910,8 +910,8 @@ 
             'orderby'        => 'title',
             'order'          => 'ASC',
             'posts_per_page' => -1,
-            'post_status'    => array( 'publish' ),
-            's'              => sanitize_text_field( urldecode( $_GET['search'] ) ),
+            'post_status'    => array('publish'),
+            's'              => sanitize_text_field(urldecode($_GET['search'])),
             'meta_query'     => array(
                 array(
                     'key'     => '_wpinv_type',
@@ -925,25 +925,25 @@ 
             ),
         );
 
-        if ( ! empty( $_GET['ignore'] ) ) {
-            $item_args['exclude'] = wp_parse_id_list( sanitize_text_field( $_GET['ignore'] ) );
+        if (!empty($_GET['ignore'])) {
+            $item_args['exclude'] = wp_parse_id_list(sanitize_text_field($_GET['ignore']));
         }
 
-        $items = get_posts( apply_filters( 'getpaid_ajax_invoice_items_query_args', $item_args ) );
+        $items = get_posts(apply_filters('getpaid_ajax_invoice_items_query_args', $item_args));
         $data  = array();
 
-        $is_payment_form = ( ! empty( $_GET['post_id'] ) && 'wpi_payment_form' == get_post_type( (int) $_GET['post_id'] ) );
+        $is_payment_form = (!empty($_GET['post_id']) && 'wpi_payment_form' == get_post_type((int) $_GET['post_id']));
 
-        foreach ( $items as $item ) {
-            $item      = new GetPaid_Form_Item( $item );
+        foreach ($items as $item) {
+            $item = new GetPaid_Form_Item($item);
             $data[] = array(
                 'id'        => (int) $item->get_id(),
-                'text'      => strip_tags( $item->get_name() ),
-                'form_data' => $is_payment_form ? $item->prepare_data_for_use( false ) : '',
+                'text'      => strip_tags($item->get_name()),
+                'form_data' => $is_payment_form ? $item->prepare_data_for_use(false) : '',
             );
         }
 
-        wp_send_json_success( $data );
+        wp_send_json_success($data);
 
     }
 
@@ -952,40 +952,40 @@ 
      */
     public static function get_customers() {
         // Verify nonce.
-        check_ajax_referer( 'wpinv-nonce' );
+        check_ajax_referer('wpinv-nonce');
 
-        $invoice_id = ! empty( $_REQUEST['post_id'] ) ? (int) $_REQUEST['post_id'] : 0;
+        $invoice_id = !empty($_REQUEST['post_id']) ? (int) $_REQUEST['post_id'] : 0;
 
         // Can the user manage the plugin?
-        if ( ! wpinv_current_user_can( 'invoice_get_customers', array( 'invoice_id' => $invoice_id ) ) ) {
+        if (!wpinv_current_user_can('invoice_get_customers', array('invoice_id' => $invoice_id))) {
             die( -1 );
         }
 
         // We need a search term.
-        if ( empty( $_GET['search'] ) ) {
-            wp_send_json_success( array() );
+        if (empty($_GET['search'])) {
+            wp_send_json_success(array());
         }
 
         // Retrieve customers.
 
         $customer_args = array(
-            'fields'         => array( 'ID', 'user_email', 'display_name' ),
+            'fields'         => array('ID', 'user_email', 'display_name'),
             'orderby'        => 'display_name',
-            'search'         => '*' . sanitize_text_field( $_GET['search'] ) . '*',
-            'search_columns' => array( 'user_login', 'user_email', 'display_name' ),
+            'search'         => '*' . sanitize_text_field($_GET['search']) . '*',
+            'search_columns' => array('user_login', 'user_email', 'display_name'),
         );
 
-        $customers = get_users( apply_filters( 'getpaid_ajax_invoice_customers_query_args', $customer_args ) );
+        $customers = get_users(apply_filters('getpaid_ajax_invoice_customers_query_args', $customer_args));
         $data      = array();
 
-        foreach ( $customers as $customer ) {
+        foreach ($customers as $customer) {
             $data[] = array(
                 'id'   => (int) $customer->ID,
-                'text' => strip_tags( sprintf( _x( '%1$s (%2$s)', 'user dropdown', 'invoicing' ), $customer->display_name, $customer->user_email ) ),
+                'text' => strip_tags(sprintf(_x('%1$s (%2$s)', 'user dropdown', 'invoicing'), $customer->display_name, $customer->user_email)),
             );
         }
 
-        wp_send_json_success( $data );
+        wp_send_json_success($data);
 
     }
 
@@ -995,25 +995,25 @@ 
     public static function get_aui_states_field() {
 
         // We need a country.
-        if ( empty( $_GET['country'] ) ) {
+        if (empty($_GET['country'])) {
             exit;
         }
 
-        $states = wpinv_get_country_states( sanitize_text_field( $_GET['country'] ) );
-        $state  = isset( $_GET['state'] ) ? sanitize_text_field( $_GET['state'] ) : wpinv_get_default_state();
-        $name   = isset( $_GET['name'] ) ? sanitize_text_field( $_GET['name'] ) : 'wpinv_state';
-        $class  = isset( $_GET['class'] ) ? sanitize_text_field( $_GET['class'] ) : 'form-control-sm';
+        $states = wpinv_get_country_states(sanitize_text_field($_GET['country']));
+        $state  = isset($_GET['state']) ? sanitize_text_field($_GET['state']) : wpinv_get_default_state();
+        $name   = isset($_GET['name']) ? sanitize_text_field($_GET['name']) : 'wpinv_state';
+        $class  = isset($_GET['class']) ? sanitize_text_field($_GET['class']) : 'form-control-sm';
 
-        if ( empty( $states ) ) {
+        if (empty($states)) {
 
             $html = aui()->input(
                 array(
                     'type'        => 'text',
                     'id'          => 'wpinv_state',
                     'name'        => $name,
-                    'label'       => __( 'State', 'invoicing' ),
+                    'label'       => __('State', 'invoicing'),
                     'label_type'  => 'vertical',
-                    'placeholder' => __( 'State', 'invoicing' ),
+                    'placeholder' => __('State', 'invoicing'),
                     'class'       => $class,
                     'value'       => $state,
                 )
@@ -1025,9 +1025,9 @@ 
                 array(
                     'id'               => 'wpinv_state',
                     'name'             => $name,
-                    'label'            => __( 'State', 'invoicing' ),
+                    'label'            => __('State', 'invoicing'),
                     'label_type'       => 'vertical',
-                    'placeholder'      => __( 'Select a state', 'invoicing' ),
+                    'placeholder'      => __('Select a state', 'invoicing'),
                     'class'            => $class,
                     'value'            => $state,
                     'options'          => $states,
@@ -1041,7 +1041,7 @@ 
         wp_send_json_success(
             array(
                 'html'   => $html,
-                'select' => ! empty( $states ),
+                'select' => !empty($states),
             )
         );
 
@@ -1055,8 +1055,8 @@ 
     public static function payment_form_refresh_prices() {
 
         // ... form fields...
-        if ( empty( $_POST['getpaid_payment_form_submission'] ) ) {
-            esc_html_e( 'Error: Reload the page and try again.', 'invoicing' );
+        if (empty($_POST['getpaid_payment_form_submission'])) {
+            esc_html_e('Error: Reload the page and try again.', 'invoicing');
             exit;
         }
 
@@ -1064,7 +1064,7 @@ 
         $submission = new GetPaid_Payment_Form_Submission();
 
         // Do we have an error?
-        if ( ! empty( $submission->last_error ) ) {
+        if (!empty($submission->last_error)) {
             wp_send_json_error(
                 array(
                     'code'  => $submission->last_error_code,
@@ -1074,12 +1074,12 @@ 
         }
 
         // Prepare the response.
-        $response = new GetPaid_Payment_Form_Submission_Refresh_Prices( $submission );
+        $response = new GetPaid_Payment_Form_Submission_Refresh_Prices($submission);
 
         // Filter the response.
-        $response = apply_filters( 'getpaid_payment_form_ajax_refresh_prices', $response->response, $submission );
+        $response = apply_filters('getpaid_payment_form_ajax_refresh_prices', $response->response, $submission);
 
-        wp_send_json_success( $response );
+        wp_send_json_success($response);
     }
 
     /**
@@ -1091,63 +1091,63 @@ 
 	public static function file_upload() {
 
         // Check nonce.
-        check_ajax_referer( 'getpaid_form_nonce' );
+        check_ajax_referer('getpaid_form_nonce');
 
-        if ( empty( $_POST['form_id'] ) || empty( $_POST['field_name'] ) || empty( $_FILES['file'] ) ) {
-            wp_die( esc_html_e( 'Bad Request', 'invoicing' ), 400 );
+        if (empty($_POST['form_id']) || empty($_POST['field_name']) || empty($_FILES['file'])) {
+            wp_die(esc_html_e('Bad Request', 'invoicing'), 400);
         }
 
         // Fetch form.
-        $form = new GetPaid_Payment_Form( intval( $_POST['form_id'] ) );
+        $form = new GetPaid_Payment_Form(intval($_POST['form_id']));
 
-        if ( ! $form->is_active() ) {
-            wp_send_json_error( __( 'Payment form not active', 'invoicing' ) );
+        if (!$form->is_active()) {
+            wp_send_json_error(__('Payment form not active', 'invoicing'));
         }
 
         // Fetch appropriate field.
-        $upload_field = current( wp_list_filter( $form->get_elements(), array( 'id' => sanitize_text_field( $_POST['field_name'] ) ) ) );
-        if ( empty( $upload_field ) ) {
-            wp_send_json_error( __( 'Invalid upload field.', 'invoicing' ) );
+        $upload_field = current(wp_list_filter($form->get_elements(), array('id' => sanitize_text_field($_POST['field_name']))));
+        if (empty($upload_field)) {
+            wp_send_json_error(__('Invalid upload field.', 'invoicing'));
         }
 
         // Prepare allowed file types.
-        $file_types = isset( $upload_field['file_types'] ) ? $upload_field['file_types'] : array( 'jpg|jpeg|jpe', 'gif', 'png' );
+        $file_types = isset($upload_field['file_types']) ? $upload_field['file_types'] : array('jpg|jpeg|jpe', 'gif', 'png');
         $all_types  = getpaid_get_allowed_mime_types();
         $mime_types = array();
 
-        foreach ( $file_types as $file_type ) {
-            if ( isset( $all_types[ $file_type ] ) ) {
-                $mime_types[] = $all_types[ $file_type ];
+        foreach ($file_types as $file_type) {
+            if (isset($all_types[$file_type])) {
+                $mime_types[] = $all_types[$file_type];
             }
         }
 
-        if ( ! in_array( $_FILES['file']['type'], $mime_types ) ) {
-            wp_send_json_error( __( 'Unsupported file type.', 'invoicing' ) );
+        if (!in_array($_FILES['file']['type'], $mime_types)) {
+            wp_send_json_error(__('Unsupported file type.', 'invoicing'));
         }
 
         // Upload file.
-        $file_name = explode( '.', strtolower( $_FILES['file']['name'] ) );
-        $file_name = uniqid( 'getpaid-' ) . '.' . array_pop( $file_name );
+        $file_name = explode('.', strtolower($_FILES['file']['name']));
+        $file_name = uniqid('getpaid-') . '.' . array_pop($file_name);
 
         $uploaded = wp_upload_bits(
             $file_name,
             null,
-            file_get_contents( $_FILES['file']['tmp_name'] )
+            file_get_contents($_FILES['file']['tmp_name'])
         );
 
-        if ( ! empty( $uploaded['error'] ) ) {
-            wp_send_json_error( $uploaded['error'] );
+        if (!empty($uploaded['error'])) {
+            wp_send_json_error($uploaded['error']);
         }
 
         // Retrieve response.
         $response = sprintf(
             '<input type="hidden" name="%s[%s]" value="%s" />',
-            esc_attr( sanitize_text_field( $_POST['field_name'] ) ),
-            esc_url( $uploaded['url'] ),
-            esc_attr( sanitize_text_field( strtolower( $_FILES['file']['name'] ) ) )
+            esc_attr(sanitize_text_field($_POST['field_name'])),
+            esc_url($uploaded['url']),
+            esc_attr(sanitize_text_field(strtolower($_FILES['file']['name'])))
         );
 
-        wp_send_json_success( $response );
+        wp_send_json_success($response);
 
 	}