AyeCode / invoicing

includes/wpinv-item-functions.php

Spacing +282 added lines, -282 removed lines

@@ -1,19 +1,19 @@ 
 <?php
 // Exit if accessed directly
-if ( ! defined( 'ABSPATH' ) ) exit;
+if (!defined('ABSPATH')) exit;
 
-function wpinv_get_item_by( $field = '', $value = '', $type = '' ) {
-    if( empty( $field ) || empty( $value ) ) {
+function wpinv_get_item_by($field = '', $value = '', $type = '') {
+    if (empty($field) || empty($value)) {
         return false;
     }
     
     $posts = array();
 
-    switch( strtolower( $field ) ) {
+    switch (strtolower($field)) {
         case 'id':
-            $item = new WPInv_Item( $value );
+            $item = new WPInv_Item($value);
 
-            if ( !empty( $item ) && $item->post_type == 'wpi_item' ) {
+            if (!empty($item) && $item->post_type == 'wpi_item') {
                 return $item;
             }
             return false;
@@ -22,16 +22,16 @@ 
 
         case 'slug':
         case 'name':
-            $posts = get_posts( array(
+            $posts = get_posts(array(
                 'post_type'      => 'wpi_item',
                 'name'           => $value,
                 'posts_per_page' => 1,
                 'post_status'    => 'any'
-            ) );
+            ));
 
             break;
         case 'custom_id':
-            if ( empty( $value ) || empty( $type ) ) {
+            if (empty($value) || empty($type)) {
                 return false;
             }
             
@@ -51,10 +51,10 @@ 
                 'post_status'    => 'any',
                 'orderby'        => 'ID',
                 'order'          => 'ASC',
-                'meta_query'     => array( $meta_query )
+                'meta_query'     => array($meta_query)
             );
             
-            $posts = get_posts( $args );
+            $posts = get_posts($args);
 
             break;
 
@@ -62,10 +62,10 @@ 
             return false;
     }
     
-    if ( !empty( $posts[0] ) ) {
-        $item = new WPInv_Item( $posts[0]->ID );
+    if (!empty($posts[0])) {
+        $item = new WPInv_Item($posts[0]->ID);
 
-        if ( !empty( $item ) && $item->post_type == 'wpi_item' ) {
+        if (!empty($item) && $item->post_type == 'wpi_item') {
             return $item;
         }
     }
@@ -73,10 +73,10 @@ 
     return false;
 }
 
-function wpinv_get_item( $item = 0 ) {
-    if ( is_numeric( $item ) ) {
-        $item = get_post( $item );
-        if ( ! $item || 'wpi_item' !== $item->post_type )
+function wpinv_get_item($item = 0) {
+    if (is_numeric($item)) {
+        $item = get_post($item);
+        if (!$item || 'wpi_item' !== $item->post_type)
             return null;
         return $item;
     }
@@ -89,150 +89,150 @@ 
 
     $item = get_posts($args);
 
-    if ( $item ) {
+    if ($item) {
         return $item[0];
     }
 
     return null;
 }
 
-function wpinv_is_free_item( $item_id = 0 ) {
-    if( empty( $item_id ) ) {
+function wpinv_is_free_item($item_id = 0) {
+    if (empty($item_id)) {
         return false;
     }
 
-    $item = new WPInv_Item( $item_id );
+    $item = new WPInv_Item($item_id);
     
     return $item->is_free();
 }
 
-function wpinv_item_is_editable( $item = 0 ) {
-    if ( !empty( $item ) && is_a( $item, 'WP_Post' ) ) {
+function wpinv_item_is_editable($item = 0) {
+    if (!empty($item) && is_a($item, 'WP_Post')) {
         $item = $item->ID;
     }
         
-    if ( empty( $item ) ) {
+    if (empty($item)) {
         return true;
     }
 
-    $item = new WPInv_Item( $item );
+    $item = new WPInv_Item($item);
     
-    return (bool) $item->is_editable();
+    return (bool)$item->is_editable();
 }
 
-function wpinv_get_item_price( $item_id = 0 ) {
-    if( empty( $item_id ) ) {
+function wpinv_get_item_price($item_id = 0) {
+    if (empty($item_id)) {
         return false;
     }
 
-    $item = new WPInv_Item( $item_id );
+    $item = new WPInv_Item($item_id);
     
     return $item->get_price();
 }
 
-function wpinv_is_recurring_item( $item_id = 0 ) {
-    if( empty( $item_id ) ) {
+function wpinv_is_recurring_item($item_id = 0) {
+    if (empty($item_id)) {
         return false;
     }
 
-    $item = new WPInv_Item( $item_id );
+    $item = new WPInv_Item($item_id);
     
     return $item->is_recurring();
 }
 
-function wpinv_item_price( $item_id = 0 ) {
-    if( empty( $item_id ) ) {
+function wpinv_item_price($item_id = 0) {
+    if (empty($item_id)) {
         return false;
     }
 
-    $price = wpinv_get_item_price( $item_id );
-    $price = wpinv_price( wpinv_format_amount( $price ) );
+    $price = wpinv_get_item_price($item_id);
+    $price = wpinv_price(wpinv_format_amount($price));
     
-    return apply_filters( 'wpinv_item_price', $price, $item_id );
+    return apply_filters('wpinv_item_price', $price, $item_id);
 }
 
-function wpinv_item_show_price( $item_id = 0, $echo = true ) {
-    if ( empty( $item_id ) ) {
+function wpinv_item_show_price($item_id = 0, $echo = true) {
+    if (empty($item_id)) {
         $item_id = get_the_ID();
     }
 
-    $price = wpinv_item_price( $item_id );
+    $price = wpinv_item_price($item_id);
 
-    $price           = apply_filters( 'wpinv_item_price', wpinv_sanitize_amount( $price ), $item_id );
+    $price           = apply_filters('wpinv_item_price', wpinv_sanitize_amount($price), $item_id);
     $formatted_price = '<span class="wpinv_price" id="wpinv_item_' . $item_id . '">' . $price . '</span>';
-    $formatted_price = apply_filters( 'wpinv_item_price_after_html', $formatted_price, $item_id, $price );
+    $formatted_price = apply_filters('wpinv_item_price_after_html', $formatted_price, $item_id, $price);
 
-    if ( $echo ) {
+    if ($echo) {
         echo $formatted_price;
     } else {
         return $formatted_price;
     }
 }
 
-function wpinv_get_item_final_price( $item_id = 0, $amount_override = null ) {
-    if ( is_null( $amount_override ) ) {
-        $original_price = get_post_meta( $item_id, '_wpinv_price', true );
+function wpinv_get_item_final_price($item_id = 0, $amount_override = null) {
+    if (is_null($amount_override)) {
+        $original_price = get_post_meta($item_id, '_wpinv_price', true);
     } else {
         $original_price = $amount_override;
     }
     
     $price = $original_price;
 
-    return apply_filters( 'wpinv_get_item_final_price', $price, $item_id );
+    return apply_filters('wpinv_get_item_final_price', $price, $item_id);
 }
 
-function wpinv_item_custom_singular_name( $item_id ) {
-    if( empty( $item_id ) ) {
+function wpinv_item_custom_singular_name($item_id) {
+    if (empty($item_id)) {
         return false;
     }
 
-    $item = new WPInv_Item( $item_id );
+    $item = new WPInv_Item($item_id);
     
     return $item->get_custom_singular_name();
 }
 
 function wpinv_get_item_types() {
     $item_types = array(
-            'custom'    => __( 'Standard', 'invoicing' ),
-            'fee'       => __( 'Fee', 'invoicing' ),
+            'custom'    => __('Standard', 'invoicing'),
+            'fee'       => __('Fee', 'invoicing'),
         );
-    return apply_filters( 'wpinv_get_item_types', $item_types );
+    return apply_filters('wpinv_get_item_types', $item_types);
 }
 
 function wpinv_item_types() {
     $item_types = wpinv_get_item_types();
     
-    return ( !empty( $item_types ) ? array_keys( $item_types ) : array() );
+    return (!empty($item_types) ? array_keys($item_types) : array());
 }
 
-function wpinv_get_item_type( $item_id ) {
-    if( empty( $item_id ) ) {
+function wpinv_get_item_type($item_id) {
+    if (empty($item_id)) {
         return false;
     }
 
-    $item = new WPInv_Item( $item_id );
+    $item = new WPInv_Item($item_id);
     
     return $item->get_type();
 }
 
-function wpinv_item_type( $item_id ) {
+function wpinv_item_type($item_id) {
     $item_types = wpinv_get_item_types();
     
-    $item_type = wpinv_get_item_type( $item_id );
+    $item_type = wpinv_get_item_type($item_id);
     
-    if ( empty( $item_type ) ) {
+    if (empty($item_type)) {
         $item_type = '-';
     }
     
-    $item_type = isset( $item_types[$item_type] ) ? $item_types[$item_type] : __( $item_type, 'invoicing' );
+    $item_type = isset($item_types[$item_type]) ? $item_types[$item_type] : __($item_type, 'invoicing');
 
-    return apply_filters( 'wpinv_item_type', $item_type, $item_id );
+    return apply_filters('wpinv_item_type', $item_type, $item_id);
 }
 
-function wpinv_record_item_in_log( $item_id = 0, $file_id, $user_info, $ip, $invoice_id ) {
+function wpinv_record_item_in_log($item_id = 0, $file_id, $user_info, $ip, $invoice_id) {
     global $wpinv_logs;
     
-    if ( empty( $wpinv_logs ) ) {
+    if (empty($wpinv_logs)) {
         return false;
     }
 
@@ -241,7 +241,7 @@ 
         'log_type'		=> 'wpi_item'
     );
 
-    $user_id = isset( $user_info['user_id'] ) ? $user_info['user_id'] : (int) -1;
+    $user_id = isset($user_info['user_id']) ? $user_info['user_id'] : (int) -1;
 
     $log_meta = array(
         'user_info'	=> $user_info,
@@ -251,253 +251,253 @@ 
         'invoice_id'=> $invoice_id,
     );
 
-    $wpinv_logs->insert_log( $log_data, $log_meta );
+    $wpinv_logs->insert_log($log_data, $log_meta);
 }
 
-function wpinv_remove_item_logs_on_delete( $item_id = 0 ) {
-    if ( 'wpi_item' !== get_post_type( $item_id ) )
+function wpinv_remove_item_logs_on_delete($item_id = 0) {
+    if ('wpi_item' !== get_post_type($item_id))
         return;
 
     global $wpinv_logs;
     
-    if ( empty( $wpinv_logs ) ) {
+    if (empty($wpinv_logs)) {
         return false;
     }
 
     // Remove all log entries related to this item
-    $wpinv_logs->delete_logs( $item_id );
+    $wpinv_logs->delete_logs($item_id);
 }
-add_action( 'delete_post', 'wpinv_remove_item_logs_on_delete' );
+add_action('delete_post', 'wpinv_remove_item_logs_on_delete');
 
-function wpinv_get_random_item( $post_ids = true ) {
-    wpinv_get_random_items( 1, $post_ids );
+function wpinv_get_random_item($post_ids = true) {
+    wpinv_get_random_items(1, $post_ids);
 }
 
-function wpinv_get_random_items( $num = 3, $post_ids = true ) {
-    if ( $post_ids ) {
-        $args = array( 'post_type' => 'wpi_item', 'orderby' => 'rand', 'post_count' => $num, 'fields' => 'ids' );
+function wpinv_get_random_items($num = 3, $post_ids = true) {
+    if ($post_ids) {
+        $args = array('post_type' => 'wpi_item', 'orderby' => 'rand', 'post_count' => $num, 'fields' => 'ids');
     } else {
-        $args = array( 'post_type' => 'wpi_item', 'orderby' => 'rand', 'post_count' => $num );
+        $args = array('post_type' => 'wpi_item', 'orderby' => 'rand', 'post_count' => $num);
     }
     
-    $args  = apply_filters( 'wpinv_get_random_items', $args );
+    $args = apply_filters('wpinv_get_random_items', $args);
     
-    return get_posts( $args );
+    return get_posts($args);
 }
 
-function wpinv_get_item_token( $url = '' ) {
+function wpinv_get_item_token($url = '') {
     $args    = array();
-    $hash    = apply_filters( 'wpinv_get_url_token_algorithm', 'sha256' );
-    $secret  = apply_filters( 'wpinv_get_url_token_secret', hash( $hash, wp_salt() ) );
+    $hash    = apply_filters('wpinv_get_url_token_algorithm', 'sha256');
+    $secret  = apply_filters('wpinv_get_url_token_secret', hash($hash, wp_salt()));
 
-    $parts   = parse_url( $url );
+    $parts   = parse_url($url);
     $options = array();
 
-    if ( isset( $parts['query'] ) ) {
-        wp_parse_str( $parts['query'], $query_args );
+    if (isset($parts['query'])) {
+        wp_parse_str($parts['query'], $query_args);
 
-        if ( ! empty( $query_args['o'] ) ) {
-            $options = explode( ':', rawurldecode( $query_args['o'] ) );
+        if (!empty($query_args['o'])) {
+            $options = explode(':', rawurldecode($query_args['o']));
 
-            if ( in_array( 'ip', $options ) ) {
+            if (in_array('ip', $options)) {
                 $args['ip'] = wpinv_get_ip();
             }
 
-            if ( in_array( 'ua', $options ) ) {
+            if (in_array('ua', $options)) {
                 $ua = wpinv_get_user_agent();
-                $args['user_agent'] = rawurlencode( $ua );
+                $args['user_agent'] = rawurlencode($ua);
             }
         }
     }
 
-    $args = apply_filters( 'wpinv_get_url_token_args', $args, $url, $options );
+    $args = apply_filters('wpinv_get_url_token_args', $args, $url, $options);
 
     $args['secret'] = $secret;
     $args['token']  = false;
 
-    $url   = add_query_arg( $args, $url );
-    $parts = parse_url( $url );
+    $url   = add_query_arg($args, $url);
+    $parts = parse_url($url);
 
-    if ( ! isset( $parts['path'] ) ) {
+    if (!isset($parts['path'])) {
         $parts['path'] = '';
     }
 
-    $token = md5( $parts['path'] . '?' . $parts['query'] );
+    $token = md5($parts['path'] . '?' . $parts['query']);
 
     return $token;
 }
 
-function wpinv_validate_url_token( $url = '' ) {
+function wpinv_validate_url_token($url = '') {
     $ret   = false;
-    $parts = parse_url( $url );
+    $parts = parse_url($url);
 
-    if ( isset( $parts['query'] ) ) {
-        wp_parse_str( $parts['query'], $query_args );
+    if (isset($parts['query'])) {
+        wp_parse_str($parts['query'], $query_args);
 
-        $allowed = apply_filters( 'wpinv_url_token_allowed_params', array(
+        $allowed = apply_filters('wpinv_url_token_allowed_params', array(
             'item',
             'ttl',
             'token'
-        ) );
+        ));
 
         $remove = array();
 
-        foreach( $query_args as $key => $value ) {
-            if( false === in_array( $key, $allowed ) ) {
+        foreach ($query_args as $key => $value) {
+            if (false === in_array($key, $allowed)) {
                 $remove[] = $key;
             }
         }
 
-        if( ! empty( $remove ) ) {
-            $url = remove_query_arg( $remove, $url );
+        if (!empty($remove)) {
+            $url = remove_query_arg($remove, $url);
         }
 
-        if ( isset( $query_args['ttl'] ) && current_time( 'timestamp' ) > $query_args['ttl'] ) {
-            wp_die( apply_filters( 'wpinv_item_link_expired_text', __( 'Sorry but your item link has expired.', 'invoicing' ) ), __( 'Error', 'invoicing' ), array( 'response' => 403 ) );
+        if (isset($query_args['ttl']) && current_time('timestamp') > $query_args['ttl']) {
+            wp_die(apply_filters('wpinv_item_link_expired_text', __('Sorry but your item link has expired.', 'invoicing')), __('Error', 'invoicing'), array('response' => 403));
         }
 
-        if ( isset( $query_args['token'] ) && $query_args['token'] == wpinv_get_item_token( $url ) ) {
+        if (isset($query_args['token']) && $query_args['token'] == wpinv_get_item_token($url)) {
             $ret = true;
         }
 
     }
 
-    return apply_filters( 'wpinv_validate_url_token', $ret, $url, $query_args );
+    return apply_filters('wpinv_validate_url_token', $ret, $url, $query_args);
 }
 
-function wpinv_item_in_cart( $item_id = 0, $options = array() ) {
+function wpinv_item_in_cart($item_id = 0, $options = array()) {
     $cart_items = wpinv_get_cart_contents();
 
     $ret = false;
 
-    if ( is_array( $cart_items ) ) {
-        foreach ( $cart_items as $item ) {
-            if ( $item['id'] == $item_id ) {
+    if (is_array($cart_items)) {
+        foreach ($cart_items as $item) {
+            if ($item['id'] == $item_id) {
                 $ret = true;
                 break;
             }
         }
     }
 
-    return (bool) apply_filters( 'wpinv_item_in_cart', $ret, $item_id, $options );
+    return (bool)apply_filters('wpinv_item_in_cart', $ret, $item_id, $options);
 }
 
-function wpinv_get_cart_item_tax( $item_id = 0, $subtotal = '', $options = array() ) {
+function wpinv_get_cart_item_tax($item_id = 0, $subtotal = '', $options = array()) {
     $tax = 0;
-    if ( ! wpinv_item_is_tax_exclusive( $item_id ) ) {
-        $country = !empty( $_POST['country'] ) ? $_POST['country'] : false;
-        $state   = isset( $_POST['state'] ) ? $_POST['state'] : '';
+    if (!wpinv_item_is_tax_exclusive($item_id)) {
+        $country = !empty($_POST['country']) ? $_POST['country'] : false;
+        $state   = isset($_POST['state']) ? $_POST['state'] : '';
 
-        $tax = wpinv_calculate_tax( $subtotal, $country, $state, $item_id );
+        $tax = wpinv_calculate_tax($subtotal, $country, $state, $item_id);
     }
 
-    return apply_filters( 'wpinv_get_cart_item_tax', $tax, $item_id, $subtotal, $options );
+    return apply_filters('wpinv_get_cart_item_tax', $tax, $item_id, $subtotal, $options);
 }
 
-function wpinv_cart_item_price( $item ) {
+function wpinv_cart_item_price($item) {
     $use_taxes  = wpinv_use_taxes();
-    $item_id    = isset( $item['id'] ) ? $item['id'] : 0;
-    $price      = isset( $item['item_price'] ) ? wpinv_round_amount( $item['item_price'] ) : 0;
-    $options    = isset( $item['options'] ) ? $item['options'] : array();
-    $price_id   = isset( $options['price_id'] ) ? $options['price_id'] : false;
-    $tax        = wpinv_price( wpinv_format_amount( $item['tax'] ) );
-    
-    if ( !wpinv_is_free_item( $item_id, $price_id ) && !wpinv_item_is_tax_exclusive( $item_id ) ) {
-        if ( wpinv_prices_show_tax_on_checkout() && !wpinv_prices_include_tax() ) {
+    $item_id    = isset($item['id']) ? $item['id'] : 0;
+    $price      = isset($item['item_price']) ? wpinv_round_amount($item['item_price']) : 0;
+    $options    = isset($item['options']) ? $item['options'] : array();
+    $price_id   = isset($options['price_id']) ? $options['price_id'] : false;
+    $tax        = wpinv_price(wpinv_format_amount($item['tax']));
+    
+    if (!wpinv_is_free_item($item_id, $price_id) && !wpinv_item_is_tax_exclusive($item_id)) {
+        if (wpinv_prices_show_tax_on_checkout() && !wpinv_prices_include_tax()) {
             $price += $tax;
         }
         
-        if( !wpinv_prices_show_tax_on_checkout() && wpinv_prices_include_tax() ) {
+        if (!wpinv_prices_show_tax_on_checkout() && wpinv_prices_include_tax()) {
             $price -= $tax;
         }        
     }
 
-    $price = wpinv_price( wpinv_format_amount( $price ) );
+    $price = wpinv_price(wpinv_format_amount($price));
 
-    return apply_filters( 'wpinv_cart_item_price_label', $price, $item );
+    return apply_filters('wpinv_cart_item_price_label', $price, $item);
 }
 
-function wpinv_cart_item_subtotal( $item ) {
-    $subtotal   = isset( $item['subtotal'] ) ? $item['subtotal'] : 0;
-    $subtotal   = wpinv_price( wpinv_format_amount( $subtotal ) );
+function wpinv_cart_item_subtotal($item) {
+    $subtotal   = isset($item['subtotal']) ? $item['subtotal'] : 0;
+    $subtotal   = wpinv_price(wpinv_format_amount($subtotal));
 
-    return apply_filters( 'wpinv_cart_item_subtotal_label', $subtotal, $item );
+    return apply_filters('wpinv_cart_item_subtotal_label', $subtotal, $item);
 }
 
-function wpinv_cart_item_tax( $item ) {
+function wpinv_cart_item_tax($item) {
     $tax        = '';
     $tax_rate   = '';
     
-    if ( isset( $item['tax'] ) && $item['tax'] > 0 && $item['subtotal'] > 0 ) {
-        $tax      = wpinv_price( wpinv_format_amount( $item['tax'] ) );
-        $tax_rate = !empty( $item['vat_rate'] ) ? $item['vat_rate'] : ( $item['tax'] / $item['subtotal'] ) * 100;
-        $tax_rate = $tax_rate > 0 ? (float)wpinv_round_amount( $tax_rate, 4 ) : '';
+    if (isset($item['tax']) && $item['tax'] > 0 && $item['subtotal'] > 0) {
+        $tax      = wpinv_price(wpinv_format_amount($item['tax']));
+        $tax_rate = !empty($item['vat_rate']) ? $item['vat_rate'] : ($item['tax'] / $item['subtotal']) * 100;
+        $tax_rate = $tax_rate > 0 ? (float)wpinv_round_amount($tax_rate, 4) : '';
         $tax_rate = $tax_rate != '' ? ' <small class="tax-rate normal small">(' . $tax_rate . '%)</small>' : '';
     }
     
-    $tax        = $tax . $tax_rate;
+    $tax = $tax . $tax_rate;
     
-    if ( $tax === '' ) {
+    if ($tax === '') {
         $tax = 0; // Zero tax
     }
 
-    return apply_filters( 'wpinv_cart_item_tax_label', $tax, $item );
+    return apply_filters('wpinv_cart_item_tax_label', $tax, $item);
 }
 
-function wpinv_get_cart_item_price( $item_id = 0, $cart_item = array(), $options = array(), $remove_tax_from_inclusive = false ) {
+function wpinv_get_cart_item_price($item_id = 0, $cart_item = array(), $options = array(), $remove_tax_from_inclusive = false) {
     $price = 0;
     
     // Set custom price
-    if ( isset( $cart_item['custom_price'] ) && $cart_item['custom_price'] !== '' ) {
+    if (isset($cart_item['custom_price']) && $cart_item['custom_price'] !== '') {
         $price = $cart_item['custom_price'];
     } else {
-        $variable_prices = wpinv_has_variable_prices( $item_id );
+        $variable_prices = wpinv_has_variable_prices($item_id);
 
-        if ( $variable_prices ) {
-            $prices = wpinv_get_variable_prices( $item_id );
+        if ($variable_prices) {
+            $prices = wpinv_get_variable_prices($item_id);
 
-            if ( $prices ) {
-                if( ! empty( $options ) ) {
-                    $price = isset( $prices[ $options['price_id'] ] ) ? $prices[ $options['price_id'] ]['amount'] : false;
+            if ($prices) {
+                if (!empty($options)) {
+                    $price = isset($prices[$options['price_id']]) ? $prices[$options['price_id']]['amount'] : false;
                 } else {
                     $price = false;
                 }
             }
         }
 
-        if( ! $variable_prices || false === $price ) {
+        if (!$variable_prices || false === $price) {
             // Get the standard Item price if not using variable prices
-            $price = wpinv_get_item_price( $item_id );
+            $price = wpinv_get_item_price($item_id);
         }
     }
 
-    if ( $remove_tax_from_inclusive && wpinv_prices_include_tax() ) {
-        $price -= wpinv_get_cart_item_tax( $item_id, $price, $options );
+    if ($remove_tax_from_inclusive && wpinv_prices_include_tax()) {
+        $price -= wpinv_get_cart_item_tax($item_id, $price, $options);
     }
 
-    return apply_filters( 'wpinv_cart_item_price', $price, $item_id, $cart_item, $options, $remove_tax_from_inclusive );
+    return apply_filters('wpinv_cart_item_price', $price, $item_id, $cart_item, $options, $remove_tax_from_inclusive);
 }
 
-function wpinv_get_cart_item_price_id( $item = array() ) {
-    if( isset( $item['item_number'] ) ) {
-        $price_id = isset( $item['item_number']['options']['price_id'] ) ? $item['item_number']['options']['price_id'] : null;
+function wpinv_get_cart_item_price_id($item = array()) {
+    if (isset($item['item_number'])) {
+        $price_id = isset($item['item_number']['options']['price_id']) ? $item['item_number']['options']['price_id'] : null;
     } else {
-        $price_id = isset( $item['options']['price_id'] ) ? $item['options']['price_id'] : null;
+        $price_id = isset($item['options']['price_id']) ? $item['options']['price_id'] : null;
     }
     return $price_id;
 }
 
-function wpinv_get_cart_item_price_name( $item = array() ) {
-    $price_id = (int)wpinv_get_cart_item_price_id( $item );
-    $prices   = wpinv_get_variable_prices( $item['id'] );
-    $name     = ! empty( $prices[ $price_id ] ) ? $prices[ $price_id ]['name'] : '';
-    return apply_filters( 'wpinv_get_cart_item_price_name', $name, $item['id'], $price_id, $item );
+function wpinv_get_cart_item_price_name($item = array()) {
+    $price_id = (int)wpinv_get_cart_item_price_id($item);
+    $prices   = wpinv_get_variable_prices($item['id']);
+    $name     = !empty($prices[$price_id]) ? $prices[$price_id]['name'] : '';
+    return apply_filters('wpinv_get_cart_item_price_name', $name, $item['id'], $price_id, $item);
 }
 
-function wpinv_get_cart_item_name( $item = array() ) {
-    $item_title = !empty( $item['name'] ) ? $item['name'] : get_the_title( $item['id'] );
+function wpinv_get_cart_item_name($item = array()) {
+    $item_title = !empty($item['name']) ? $item['name'] : get_the_title($item['id']);
 
-    if ( empty( $item_title ) ) {
+    if (empty($item_title)) {
         $item_title = $item['id'];
     }
 
@@ -507,23 +507,23 @@ 
     }
     */
 
-    return apply_filters( 'wpinv_get_cart_item_name', $item_title, $item['id'], $item );
+    return apply_filters('wpinv_get_cart_item_name', $item_title, $item['id'], $item);
 }
 
-function wpinv_has_variable_prices( $item_id = 0 ) {
+function wpinv_has_variable_prices($item_id = 0) {
     return false;
 }
 
-function wpinv_get_item_position_in_cart( $item_id = 0, $options = array() ) {
+function wpinv_get_item_position_in_cart($item_id = 0, $options = array()) {
     $cart_items = wpinv_get_cart_contents();
 
-    if ( !is_array( $cart_items ) ) {
+    if (!is_array($cart_items)) {
         return false; // Empty cart
     } else {
-        foreach ( $cart_items as $position => $item ) {
-            if ( $item['id'] == $item_id ) {
-                if ( isset( $options['price_id'] ) && isset( $item['options']['price_id'] ) ) {
-                    if ( (int) $options['price_id'] == (int) $item['options']['price_id'] ) {
+        foreach ($cart_items as $position => $item) {
+            if ($item['id'] == $item_id) {
+                if (isset($options['price_id']) && isset($item['options']['price_id'])) {
+                    if ((int)$options['price_id'] == (int)$item['options']['price_id']) {
                         return $position;
                     }
                 } else {
@@ -536,80 +536,80 @@ 
     return false; // Not found
 }
 
-function wpinv_get_cart_item_quantity( $item ) {
-    if ( wpinv_item_quantities_enabled() ) {
-        $quantity = !empty( $item['quantity'] ) && (int)$item['quantity'] > 0 ? absint( $item['quantity'] ) : 1;
+function wpinv_get_cart_item_quantity($item) {
+    if (wpinv_item_quantities_enabled()) {
+        $quantity = !empty($item['quantity']) && (int)$item['quantity'] > 0 ? absint($item['quantity']) : 1;
     } else {
         $quantity = 1;
     }
     
-    if ( $quantity < 1 ) {
+    if ($quantity < 1) {
         $quantity = 1;
     }
     
-    return apply_filters( 'wpinv_get_cart_item_quantity', $quantity, $item );
+    return apply_filters('wpinv_get_cart_item_quantity', $quantity, $item);
 }
 
-function wpinv_get_item_suffix( $item, $html = true ) {
-    if ( empty( $item ) ) {
+function wpinv_get_item_suffix($item, $html = true) {
+    if (empty($item)) {
         return NULL;
     }
     
-    if ( is_int( $item ) ) {
-        $item = new WPInv_Item( $item );
+    if (is_int($item)) {
+        $item = new WPInv_Item($item);
     }
     
-    if ( !( is_object( $item ) && is_a( $item, 'WPInv_Item' ) ) ) {
+    if (!(is_object($item) && is_a($item, 'WPInv_Item'))) {
         return NULL;
     }
     
-    $suffix = $item->is_recurring() ? ' <span class="wpi-suffix">' . __( '(r)', 'invoicing' ) . '</span>' : '';
+    $suffix = $item->is_recurring() ? ' <span class="wpi-suffix">' . __('(r)', 'invoicing') . '</span>' : '';
     
-    if ( !$html && $suffix ) {
-        $suffix = strip_tags( $suffix );
+    if (!$html && $suffix) {
+        $suffix = strip_tags($suffix);
     }
     
-    return apply_filters( 'wpinv_get_item_suffix', $suffix, $item, $html );
+    return apply_filters('wpinv_get_item_suffix', $suffix, $item, $html);
 }
 
-function wpinv_remove_item( $item = 0, $force_delete = false ) {
-    if ( empty( $item ) ) {
+function wpinv_remove_item($item = 0, $force_delete = false) {
+    if (empty($item)) {
         return NULL;
     }
     
-    if ( is_int( $item ) ) {
-        $item = new WPInv_Item( $item );
+    if (is_int($item)) {
+        $item = new WPInv_Item($item);
     }
     
-    if ( !( is_object( $item ) && is_a( $item, 'WPInv_Item' ) ) ) {
+    if (!(is_object($item) && is_a($item, 'WPInv_Item'))) {
         return NULL;
     }
     
-    do_action( 'wpinv_pre_delete_item', $item );
+    do_action('wpinv_pre_delete_item', $item);
 
-    wp_delete_post( $item->ID, $force_delete );
+    wp_delete_post($item->ID, $force_delete);
 
-    do_action( 'wpinv_post_delete_item', $item );
+    do_action('wpinv_post_delete_item', $item);
 }
 
-function wpinv_can_delete_item( $post_id ) {
-    $return = current_user_can( 'manage_options' ) ? true : false;
+function wpinv_can_delete_item($post_id) {
+    $return = current_user_can('manage_options') ? true : false;
     
-    if ( $return && wpinv_item_in_use( $post_id ) ) {
+    if ($return && wpinv_item_in_use($post_id)) {
         $return = false; // Don't delete item already use in invoices.
     }
     
-    return apply_filters( 'wpinv_can_delete_item', $return, $post_id );
+    return apply_filters('wpinv_can_delete_item', $return, $post_id);
 }
 
 function wpinv_admin_action_delete() {
     $screen = get_current_screen();
     
-    if ( !empty( $screen->post_type ) && $screen->post_type == 'wpi_item' && !empty( $_REQUEST['post'] ) && is_array( $_REQUEST['post'] ) ) {
+    if (!empty($screen->post_type) && $screen->post_type == 'wpi_item' && !empty($_REQUEST['post']) && is_array($_REQUEST['post'])) {
         $post_ids = array();
         
-        foreach ( $_REQUEST['post'] as $post_id ) {
-            if ( !wpinv_can_delete_item( $post_id ) ) {
+        foreach ($_REQUEST['post'] as $post_id) {
+            if (!wpinv_can_delete_item($post_id)) {
                 continue;
             }
             
@@ -619,86 +619,86 @@ 
         $_REQUEST['post'] = $post_ids;
     }
 }
-add_action( 'admin_action_trash', 'wpinv_admin_action_delete', -10 );
-add_action( 'admin_action_delete', 'wpinv_admin_action_delete', -10 );
+add_action('admin_action_trash', 'wpinv_admin_action_delete', -10);
+add_action('admin_action_delete', 'wpinv_admin_action_delete', -10);
 
-function wpinv_check_delete_item( $check, $post, $force_delete ) {
-    if ( $post->post_type == 'wpi_item' ) {
-        if ( $force_delete && !wpinv_can_delete_item( $post->ID ) ) {
+function wpinv_check_delete_item($check, $post, $force_delete) {
+    if ($post->post_type == 'wpi_item') {
+        if ($force_delete && !wpinv_can_delete_item($post->ID)) {
             return true;
         }
     }
     
     return $check;
 }
-add_filter( 'pre_delete_post', 'wpinv_check_delete_item', 10, 3 );
+add_filter('pre_delete_post', 'wpinv_check_delete_item', 10, 3);
 
-function wpinv_item_in_use( $item_id ) {
+function wpinv_item_in_use($item_id) {
     global $wpdb, $wpi_items_in_use;
     
-    if ( !$item_id > 0 ) {
+    if (!$item_id > 0) {
         return false;
     }
     
-    if ( !empty( $wpi_items_in_use ) ) {
-        if ( isset( $wpi_items_in_use[$item_id] ) ) {
+    if (!empty($wpi_items_in_use)) {
+        if (isset($wpi_items_in_use[$item_id])) {
             return $wpi_items_in_use[$item_id];
         }
     } else {
         $wpi_items_in_use = array();
     }
     
-    $statuses   = array_keys( wpinv_get_invoice_statuses( true ) );
+    $statuses = array_keys(wpinv_get_invoice_statuses(true));
     
-    $query  = "SELECT p.ID FROM " . $wpdb->posts . " AS p INNER JOIN " . $wpdb->postmeta . " AS pm ON p.ID = pm.post_id WHERE p.post_type = 'wpi_invoice' AND p.post_status IN( '" . implode( "','", $statuses ) . "' ) AND pm.meta_key = '_wpinv_item_ids' AND FIND_IN_SET( '" . (int)$item_id . "', pm.meta_value )";
-    $in_use = $wpdb->get_var( $query ) > 0 ? true : false;
+    $query  = "SELECT p.ID FROM " . $wpdb->posts . " AS p INNER JOIN " . $wpdb->postmeta . " AS pm ON p.ID = pm.post_id WHERE p.post_type = 'wpi_invoice' AND p.post_status IN( '" . implode("','", $statuses) . "' ) AND pm.meta_key = '_wpinv_item_ids' AND FIND_IN_SET( '" . (int)$item_id . "', pm.meta_value )";
+    $in_use = $wpdb->get_var($query) > 0 ? true : false;
     
     $wpi_items_in_use[$item_id] = $in_use;
     
     return $in_use;
 }
 
-function wpinv_create_item( $args = array(), $wp_error = false, $force_update = false ) {
+function wpinv_create_item($args = array(), $wp_error = false, $force_update = false) {
     // Set some defaults
     $defaults = array(
-        'type'                 => 'custom',                                                // Optional. Item type. Default 'custom'.
-        'title'                => '',                                                      // Required. Item title.
-        'custom_id'            => 0,                                                       // Optional. Any integer or non numeric id. Must be unique within item type.
-        'price'                => '0.00',                                                  // Optional. Item price. Default '0.00'.
-        'status'               => 'pending',                                               // Optional. pending, publish
-        'custom_name'          => '',                                                      // Optional. Plural sub title for item.
-        'custom_singular_name' => '',                                                      // Optional. Singular sub title for item.
-        'vat_rule'             => 'digital',                                               // Optional. digital => Digital item, physical => Physical item
-        'editable'             => true,                                                    // Optional. Item editable from Items list page? Default true.
-        'excerpt'              => '',                                                      // Optional. Item short description
+        'type'                 => 'custom', // Optional. Item type. Default 'custom'.
+        'title'                => '', // Required. Item title.
+        'custom_id'            => 0, // Optional. Any integer or non numeric id. Must be unique within item type.
+        'price'                => '0.00', // Optional. Item price. Default '0.00'.
+        'status'               => 'pending', // Optional. pending, publish
+        'custom_name'          => '', // Optional. Plural sub title for item.
+        'custom_singular_name' => '', // Optional. Singular sub title for item.
+        'vat_rule'             => 'digital', // Optional. digital => Digital item, physical => Physical item
+        'editable'             => true, // Optional. Item editable from Items list page? Default true.
+        'excerpt'              => '', // Optional. Item short description
         /* Recurring item fields */
-        'is_recurring'         => 0,                                                       // Optional. 1 => Allow recurring or 0 => Don't allow recurring
-        'recurring_period'     => 'M',                                                     // Optional. D => Daily, W => Weekly, M => Monthly, Y => Yearly
-        'recurring_interval'   => 0,                                                       // Optional. Integer value between 1 - 90.
-        'recurring_limit'      => 0,                                                       // Optional. Any integer number. 0 for recurring forever until cancelled.
-        'free_trial'           => 0,                                                       // Optional. 1 => Allow free trial or 0 => Don't free trial
-        'trial_period'         => 'M',                                                     // Optional. D => Daily, W => Weekly, M => Monthly, Y => Yearly
-        'trial_interval'       => 0,                                                       // Optional. Any integer number.
+        'is_recurring'         => 0, // Optional. 1 => Allow recurring or 0 => Don't allow recurring
+        'recurring_period'     => 'M', // Optional. D => Daily, W => Weekly, M => Monthly, Y => Yearly
+        'recurring_interval'   => 0, // Optional. Integer value between 1 - 90.
+        'recurring_limit'      => 0, // Optional. Any integer number. 0 for recurring forever until cancelled.
+        'free_trial'           => 0, // Optional. 1 => Allow free trial or 0 => Don't free trial
+        'trial_period'         => 'M', // Optional. D => Daily, W => Weekly, M => Monthly, Y => Yearly
+        'trial_interval'       => 0, // Optional. Any integer number.
     );
 
-    $data = wp_parse_args( $args, $defaults );
+    $data = wp_parse_args($args, $defaults);
 
-    if ( empty( $data['type'] ) ) {
+    if (empty($data['type'])) {
         $data['type'] = 'custom';
     }
 
-    if ( !empty( $data['custom_id'] ) ) {
-        $item = wpinv_get_item_by( 'custom_id', $data['custom_id'], $data['type'] );
+    if (!empty($data['custom_id'])) {
+        $item = wpinv_get_item_by('custom_id', $data['custom_id'], $data['type']);
     } else {
         $item = NULL;
     }
 
-    if ( !empty( $item ) ) {
-        if ( $force_update ) {
-            if ( empty( $args['ID'] ) ) {
+    if (!empty($item)) {
+        if ($force_update) {
+            if (empty($args['ID'])) {
                 $args['ID'] = $item->ID;
             }
-            return wpinv_update_item( $args, $wp_error );
+            return wpinv_update_item($args, $wp_error);
         }
 
         return $item;
@@ -709,19 +709,19 @@ 
     $meta['custom_id']              = $data['custom_id'];
     $meta['custom_singular_name']   = $data['custom_singular_name'];
     $meta['custom_name']            = $data['custom_name'];
-    $meta['price']                  = wpinv_round_amount( $data['price'] );
+    $meta['price']                  = wpinv_round_amount($data['price']);
     $meta['editable']               = (int)$data['editable'];
     $meta['vat_rule']               = $data['vat_rule'];
     $meta['vat_class']              = '_standard';
     
-    if ( !empty( $data['is_recurring'] ) ) {
+    if (!empty($data['is_recurring'])) {
         $meta['is_recurring']       = $data['is_recurring'];
         $meta['recurring_period']   = $data['recurring_period'];
-        $meta['recurring_interval'] = absint( $data['recurring_interval'] );
-        $meta['recurring_limit']    = absint( $data['recurring_limit'] );
+        $meta['recurring_interval'] = absint($data['recurring_interval']);
+        $meta['recurring_limit']    = absint($data['recurring_limit']);
         $meta['free_trial']         = $data['free_trial'];
         $meta['trial_period']       = $data['trial_period'];
-        $meta['trial_interval']     = absint( $data['trial_interval'] );
+        $meta['trial_interval']     = absint($data['trial_interval']);
     } else {
         $meta['is_recurring']       = 0;
         $meta['recurring_period']   = '';
@@ -732,7 +732,7 @@ 
         $meta['trial_interval']     = '';
     }
     
-    $post_data  = array( 
+    $post_data = array( 
         'post_title'    => $data['title'],
         'post_excerpt'  => $data['excerpt'],
         'post_status'   => $data['status'],
@@ -740,86 +740,86 @@ 
     );
 
     $item = new WPInv_Item();
-    $return = $item->create( $post_data, $wp_error );
+    $return = $item->create($post_data, $wp_error);
 
-    if ( $return && !empty( $item ) && !is_wp_error( $return ) ) {
+    if ($return && !empty($item) && !is_wp_error($return)) {
         return $item;
     }
 
-    if ( $wp_error && is_wp_error( $return ) ) {
+    if ($wp_error && is_wp_error($return)) {
         return $return;
     }
     return 0;
 }
 
-function wpinv_update_item( $args = array(), $wp_error = false ) {
-    $item = !empty( $args['ID'] ) ? new WPInv_Item( $args['ID'] ) : NULL;
+function wpinv_update_item($args = array(), $wp_error = false) {
+    $item = !empty($args['ID']) ? new WPInv_Item($args['ID']) : NULL;
 
-    if ( empty( $item ) || !( !empty( $item->post_type ) && $item->post_type == 'wpi_item' ) ) {
-        if ( $wp_error ) {
-            return new WP_Error( 'wpinv_invalid_item', __( 'Invalid item.', 'invoicing' ) );
+    if (empty($item) || !(!empty($item->post_type) && $item->post_type == 'wpi_item')) {
+        if ($wp_error) {
+            return new WP_Error('wpinv_invalid_item', __('Invalid item.', 'invoicing'));
         }
         return 0;
     }
     
-    if ( !empty( $args['custom_id'] ) ) {
-        $item_exists = wpinv_get_item_by( 'custom_id', $args['custom_id'], ( !empty( $args['type'] ) ? $args['type'] : $item->type ) );
+    if (!empty($args['custom_id'])) {
+        $item_exists = wpinv_get_item_by('custom_id', $args['custom_id'], (!empty($args['type']) ? $args['type'] : $item->type));
         
-        if ( !empty( $item_exists ) && $item_exists->ID != $args['ID'] ) {
-            if ( $wp_error ) {
-                return new WP_Error( 'wpinv_invalid_custom_id', __( 'Item with custom id already exists.', 'invoicing' ) );
+        if (!empty($item_exists) && $item_exists->ID != $args['ID']) {
+            if ($wp_error) {
+                return new WP_Error('wpinv_invalid_custom_id', __('Item with custom id already exists.', 'invoicing'));
             }
             return 0;
         }
     }
 
-    $meta_fields = array( 'type', 'custom_id', 'custom_singular_name', 'custom_name', 'price', 'editable', 'vat_rule', 'vat_class', 'is_recurring', 'recurring_period', 'recurring_interval', 'recurring_limit', 'free_trial', 'trial_period', 'trial_interval' );
+    $meta_fields = array('type', 'custom_id', 'custom_singular_name', 'custom_name', 'price', 'editable', 'vat_rule', 'vat_class', 'is_recurring', 'recurring_period', 'recurring_interval', 'recurring_limit', 'free_trial', 'trial_period', 'trial_interval');
 
     $post_data = array();
-    if ( isset( $args['title'] ) ) { 
+    if (isset($args['title'])) { 
         $post_data['post_title'] = $args['title'];
     }
-    if ( isset( $args['excerpt'] ) ) { 
+    if (isset($args['excerpt'])) { 
         $post_data['post_excerpt'] = $args['excerpt'];
     }
-    if ( isset( $args['status'] ) ) { 
+    if (isset($args['status'])) { 
         $post_data['post_status'] = $args['status'];
     }
     
-    foreach ( $meta_fields as $meta_field ) {
-        if ( isset( $args[ $meta_field ] ) ) { 
-            $value = $args[ $meta_field ];
+    foreach ($meta_fields as $meta_field) {
+        if (isset($args[$meta_field])) { 
+            $value = $args[$meta_field];
 
-            switch ( $meta_field ) {
+            switch ($meta_field) {
                 case 'price':
-                    $value = wpinv_round_amount( $value );
+                    $value = wpinv_round_amount($value);
                 break;
                 case 'recurring_interval':
                 case 'recurring_limit':
                 case 'trial_interval':
-                    $value = absint( $value );
+                    $value = absint($value);
                 break;
             }
 
-            $post_data['meta'][ $meta_field ] = $value;
+            $post_data['meta'][$meta_field] = $value;
         };
     }
 
-    if ( empty( $post_data ) ) {
-        if ( $wp_error ) {
-            return new WP_Error( 'wpinv_invalid_item_data', __( 'Invalid item data.', 'invoicing' ) );
+    if (empty($post_data)) {
+        if ($wp_error) {
+            return new WP_Error('wpinv_invalid_item_data', __('Invalid item data.', 'invoicing'));
         }
         return 0;
     }
     $post_data['ID'] = $args['ID'];
 
-    $return = $item->update( $post_data, $wp_error );
+    $return = $item->update($post_data, $wp_error);
 
-    if ( $return && !empty( $item ) && !is_wp_error( $return ) ) {
+    if ($return && !empty($item) && !is_wp_error($return)) {
         return $item;
     }
 
-    if ( $wp_error && is_wp_error( $return ) ) {
+    if ($wp_error && is_wp_error($return)) {
         return $return;
     }
     return 0;

includes/admin/admin-pages.php

Spacing +185 added lines, -185 removed lines

@@ -1,72 +1,72 @@ 
 <?php
 // MUST have WordPress.
-if ( !defined( 'WPINC' ) ) {
-    exit( 'Do NOT access this file directly: ' . basename( __FILE__ ) );
+if (!defined('WPINC')) {
+    exit('Do NOT access this file directly: ' . basename(__FILE__));
 }
 
-add_action( 'admin_menu', 'wpinv_add_options_link', 10 );
+add_action('admin_menu', 'wpinv_add_options_link', 10);
 function wpinv_add_options_link() {
     global $menu;
 
-    if ( !(current_user_can( 'manage_invoicing' ) || current_user_can( 'manage_options' )) ) {
+    if (!(current_user_can('manage_invoicing') || current_user_can('manage_options'))) {
         return;
     }
 
-    $capability = apply_filters( 'invoicing_capability', 'manage_invoicing' );
+    $capability = apply_filters('invoicing_capability', 'manage_invoicing');
 
-    if ( current_user_can( 'manage_options' ) ) {
-        $menu[] = array( '', 'read', 'separator-wpinv', '', 'wp-menu-separator wpinv' );
+    if (current_user_can('manage_options')) {
+        $menu[] = array('', 'read', 'separator-wpinv', '', 'wp-menu-separator wpinv');
     }
 
-    $wpi_invoice = get_post_type_object( 'wpi_invoice' );
+    $wpi_invoice = get_post_type_object('wpi_invoice');
 
-    add_menu_page( __( 'Invoicing', 'invoicing' ), __( 'Invoicing', 'invoicing' ), $capability, 'wpinv', null, $wpi_invoice->menu_icon, '54.123460' );
+    add_menu_page(__('Invoicing', 'invoicing'), __('Invoicing', 'invoicing'), $capability, 'wpinv', null, $wpi_invoice->menu_icon, '54.123460');
 
-    $wpi_settings_page   = add_submenu_page( 'wpinv', __( 'Invoice Settings', 'invoicing' ), __( 'Settings', 'invoicing' ), $capability, 'wpinv-settings', 'wpinv_options_page' );
+    $wpi_settings_page = add_submenu_page('wpinv', __('Invoice Settings', 'invoicing'), __('Settings', 'invoicing'), $capability, 'wpinv-settings', 'wpinv_options_page');
 }
 
-add_action( 'admin_menu', 'wpinv_remove_admin_submenus', 999 );
+add_action('admin_menu', 'wpinv_remove_admin_submenus', 999);
 function wpinv_remove_admin_submenus() {
-    remove_submenu_page( 'edit.php?post_type=wpi_invoice', 'post-new.php?post_type=wpi_invoice' );
+    remove_submenu_page('edit.php?post_type=wpi_invoice', 'post-new.php?post_type=wpi_invoice');
 }
 
-add_filter( 'manage_wpi_discount_posts_columns', 'wpinv_discount_columns' );
-function wpinv_discount_columns( $existing_columns ) {
+add_filter('manage_wpi_discount_posts_columns', 'wpinv_discount_columns');
+function wpinv_discount_columns($existing_columns) {
     $columns                = array();
     $columns['cb']          = $existing_columns['cb'];
-    $columns['name']        = __( 'Name', 'invoicing' );
-    $columns['code']        = __( 'Code', 'invoicing' );
-    $columns['amount']      = __( 'Amount', 'invoicing' );
-    $columns['usage']       = __( 'Usage / Limit', 'invoicing' );
-    $columns['expiry_date'] = __( 'Expiry Date', 'invoicing' );
-    $columns['status']      = __( 'Status', 'invoicing' );
+    $columns['name']        = __('Name', 'invoicing');
+    $columns['code']        = __('Code', 'invoicing');
+    $columns['amount']      = __('Amount', 'invoicing');
+    $columns['usage']       = __('Usage / Limit', 'invoicing');
+    $columns['expiry_date'] = __('Expiry Date', 'invoicing');
+    $columns['status']      = __('Status', 'invoicing');
 
     return $columns;
 }
 
-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 = $post;
 
-    switch ( $column ) {
+    switch ($column) {
         case 'name' :
-            echo get_the_title( $discount->ID );
+            echo get_the_title($discount->ID);
         break;
         case 'code' :
-            echo wpinv_get_discount_code( $discount->ID );
+            echo wpinv_get_discount_code($discount->ID);
         break;
         case 'amount' :
-            echo wpinv_format_discount_rate( wpinv_get_discount_type( $discount->ID ), wpinv_get_discount_amount( $discount->ID ) );
+            echo wpinv_format_discount_rate(wpinv_get_discount_type($discount->ID), wpinv_get_discount_amount($discount->ID));
         break;
         case 'usage_limit' :
-            echo wpinv_get_discount_uses( $discount->ID );
+            echo wpinv_get_discount_uses($discount->ID);
         break;
         case 'usage' :
-            $usage = wpinv_get_discount_uses( $discount->ID ) . ' / ';
-            if ( wpinv_get_discount_max_uses( $discount->ID ) ) {
-                $usage .= wpinv_get_discount_max_uses( $discount->ID );
+            $usage = wpinv_get_discount_uses($discount->ID) . ' / ';
+            if (wpinv_get_discount_max_uses($discount->ID)) {
+                $usage .= wpinv_get_discount_max_uses($discount->ID);
             } else {
                 $usage .= ' &infin;';
             }
@@ -74,162 +74,162 @@ 
             echo $usage;
         break;
         case 'expiry_date' :
-            if ( wpinv_get_discount_expiration( $discount->ID ) ) {
-                $expiration = date_i18n( get_option( 'date_format' ), strtotime( wpinv_get_discount_expiration( $discount->ID ) ) );
+            if (wpinv_get_discount_expiration($discount->ID)) {
+                $expiration = date_i18n(get_option('date_format'), strtotime(wpinv_get_discount_expiration($discount->ID)));
             } else {
-                $expiration = __( 'Never', 'invoicing' );
+                $expiration = __('Never', 'invoicing');
             }
                 
             echo $expiration;
         break;
         case 'description' :
-            echo wp_kses_post( $post->post_excerpt );
+            echo wp_kses_post($post->post_excerpt);
         break;
         case 'status' :
-            $status = wpinv_is_discount_expired( $discount->ID ) ? 'expired' : $discount->post_status;
+            $status = wpinv_is_discount_expired($discount->ID) ? 'expired' : $discount->post_status;
             
-            echo wpinv_discount_status( $status );
+            echo wpinv_discount_status($status);
         break;
     }
 }
 
-add_filter( 'post_row_actions', 'wpinv_post_row_actions', 9999, 2 );
-function wpinv_post_row_actions( $actions, $post ) {
-    $post_type = !empty( $post->post_type ) ? $post->post_type : '';
+add_filter('post_row_actions', 'wpinv_post_row_actions', 9999, 2);
+function wpinv_post_row_actions($actions, $post) {
+    $post_type = !empty($post->post_type) ? $post->post_type : '';
     
-    if ( $post_type == 'wpi_invoice' ) {
+    if ($post_type == 'wpi_invoice') {
         $actions = array();
     }
     
-    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' ) ) ) {
-        $row_actions['deactivate'] = '<a href="' . esc_url( wp_nonce_url( add_query_arg( array( 'wpi_action' => 'deactivate_discount', 'discount' => $discount->ID ) ), 'wpinv_discount_nonce' ) ) . '">' . __( 'Deactivate', 'invoicing' ) . '</a>';
-    } elseif( in_array( strtolower( $discount->post_status ),  array( 'pending', 'draft' ) ) ) {
-        $row_actions['activate'] = '<a href="' . esc_url( wp_nonce_url( add_query_arg( array( 'wpi_action' => 'activate_discount', 'discount' => $discount->ID ) ), 'wpinv_discount_nonce' ) ) . '">' . __( 'Activate', 'invoicing' ) . '</a>';
+    if (in_array(strtolower($discount->post_status), array('publish'))) {
+        $row_actions['deactivate'] = '<a href="' . esc_url(wp_nonce_url(add_query_arg(array('wpi_action' => 'deactivate_discount', 'discount' => $discount->ID)), 'wpinv_discount_nonce')) . '">' . __('Deactivate', 'invoicing') . '</a>';
+    } elseif (in_array(strtolower($discount->post_status), array('pending', 'draft'))) {
+        $row_actions['activate'] = '<a href="' . esc_url(wp_nonce_url(add_query_arg(array('wpi_action' => 'activate_discount', 'discount' => $discount->ID)), 'wpinv_discount_nonce')) . '">' . __('Activate', 'invoicing') . '</a>';
     }
 
-    if ( wpinv_get_discount_uses( $discount->ID ) > 0 ) {
-        if ( isset( $row_actions['delete'] ) ) {
-            unset( $row_actions['delete'] ); // Don't delete used discounts.
+    if (wpinv_get_discount_uses($discount->ID) > 0) {
+        if (isset($row_actions['delete'])) {
+            unset($row_actions['delete']); // Don't delete used discounts.
         }
     } else {
-        $row_actions['delete'] = '<a href="' . esc_url( wp_nonce_url( add_query_arg( array( 'wpi_action' => 'delete_discount', 'discount' => $discount->ID ) ), 'wpinv_discount_nonce' ) ) . '">' . __( 'Delete', 'invoicing' ) . '</a>';
+        $row_actions['delete'] = '<a href="' . esc_url(wp_nonce_url(add_query_arg(array('wpi_action' => 'delete_discount', 'discount' => $discount->ID)), 'wpinv_discount_nonce')) . '">' . __('Delete', 'invoicing') . '</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;
 }
 
-add_filter( 'list_table_primary_column', 'wpinv_table_primary_column', 10, 2 );
-function wpinv_table_primary_column( $default, $screen_id ) {
-    if ( 'edit-wpi_invoice' === $screen_id ) {
+add_filter('list_table_primary_column', 'wpinv_table_primary_column', 10, 2);
+function wpinv_table_primary_column($default, $screen_id) {
+    if ('edit-wpi_invoice' === $screen_id) {
         return 'name';
     }
     
     return $default;
 }
 
-function wpinv_discount_bulk_actions( $actions, $display = false ) {    
-    if ( !$display ) {
+function wpinv_discount_bulk_actions($actions, $display = false) {    
+    if (!$display) {
         return array();
     }
     
     $actions = array(
-        'activate'   => __( 'Activate', 'invoicing' ),
-        'deactivate' => __( 'Deactivate', 'invoicing' ),
-        'delete'     => __( 'Delete', 'invoicing' ),
+        'activate'   => __('Activate', 'invoicing'),
+        'deactivate' => __('Deactivate', 'invoicing'),
+        'delete'     => __('Delete', 'invoicing'),
     );
     $two = '';
     $which = 'top';
     echo '</div><div class="alignleft actions bulkactions">';
-    echo '<label for="bulk-action-selector-' . esc_attr( $which ) . '" class="screen-reader-text">' . __( 'Select bulk action' ) . '</label>';
-    echo '<select name="action' . $two . '" id="bulk-action-selector-' . esc_attr( $which ) . "\">";
-    echo '<option value="-1">' . __( 'Bulk Actions' ) . "</option>";
+    echo '<label for="bulk-action-selector-' . esc_attr($which) . '" class="screen-reader-text">' . __('Select bulk action') . '</label>';
+    echo '<select name="action' . $two . '" id="bulk-action-selector-' . esc_attr($which) . "\">";
+    echo '<option value="-1">' . __('Bulk Actions') . "</option>";
 
-    foreach ( $actions as $name => $title ) {
+    foreach ($actions as $name => $title) {
         $class = 'edit' === $name ? ' class="hide-if-no-js"' : '';
 
         echo "" . '<option value="' . $name . '"' . $class . '>' . $title . "</option>";
     }
     echo "</select>";
 
-    submit_button( __( 'Apply' ), 'action', '', false, array( 'id' => "doaction$two" ) );
+    submit_button(__('Apply'), 'action', '', false, array('id' => "doaction$two"));
     
     echo '</div><div class="alignleft actions">';
 }
-add_filter( 'bulk_actions-edit-wpi_discount', 'wpinv_discount_bulk_actions', 10 );
+add_filter('bulk_actions-edit-wpi_discount', 'wpinv_discount_bulk_actions', 10);
 
-function wpinv_disable_months_dropdown( $disable, $post_type ) {
-    if ( $post_type == 'wpi_discount' ) {
+function wpinv_disable_months_dropdown($disable, $post_type) {
+    if ($post_type == 'wpi_discount') {
         $disable = true;
     }
     
     return $disable;
 }
-add_filter( 'disable_months_dropdown', 'wpinv_disable_months_dropdown', 10, 2 );
+add_filter('disable_months_dropdown', 'wpinv_disable_months_dropdown', 10, 2);
 
 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() {
-    echo wpinv_discount_bulk_actions( array(), true );
+    echo wpinv_discount_bulk_actions(array(), true);
     
     ?>
     <select name="discount_type" id="dropdown_wpinv_discount_type">
-        <option value=""><?php _e( 'Show all types', 'invoicing' ); ?></option>
+        <option value=""><?php _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, $_GET['discount_type'] );
+                if (isset($_GET['discount_type']))
+                    selected($name, $_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_query, $wp_post_statuses;
 
-    if ( 'wpi_invoice' === $typenow ) {
-        if ( !isset( $vars['post_status'] ) ) {
+    if ('wpi_invoice' === $typenow) {
+        if (!isset($vars['post_status'])) {
             $post_statuses = wpinv_get_invoice_statuses();
 
-            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);
         }
         
-        if ( isset( $vars['orderby'] ) ) {
-            if ( 'amount' == $vars['orderby'] ) {
+        if (isset($vars['orderby'])) {
+            if ('amount' == $vars['orderby']) {
                 $vars = array_merge(
                     $vars,
                     array(
@@ -237,7 +237,7 @@ 
                         'orderby'  => 'meta_value_num'
                     )
                 );
-            } else if ( 'customer' == $vars['orderby'] ) {
+            } else if ('customer' == $vars['orderby']) {
                 $vars = array_merge(
                     $vars,
                     array(
@@ -245,7 +245,7 @@ 
                         'orderby'  => 'meta_value'
                     )
                 );
-            } else if ( 'number' == $vars['orderby'] ) {
+            } else if ('number' == $vars['orderby']) {
                 $vars = array_merge(
                     $vars,
                     array(
@@ -255,9 +255,9 @@ 
                 );
             }
         }
-    } else if ( 'wpi_item' == $typenow ) {
+    } else if ('wpi_item' == $typenow) {
         // Check if 'orderby' is set to "price"
-        if ( isset( $vars['orderby'] ) && 'price' == $vars['orderby'] ) {
+        if (isset($vars['orderby']) && 'price' == $vars['orderby']) {
             $vars = array_merge(
                 $vars,
                 array(
@@ -268,7 +268,7 @@ 
         }
 
         // Check if "orderby" is set to "vat_rule"
-        if ( isset( $vars['orderby'] ) && 'vat_rule' == $vars['orderby'] ) {
+        if (isset($vars['orderby']) && 'vat_rule' == $vars['orderby']) {
             $vars = array_merge(
                 $vars,
                 array(
@@ -279,7 +279,7 @@ 
         }
 
         // Check if "orderby" is set to "vat_class"
-        if ( isset( $vars['orderby'] ) && 'vat_class' == $vars['orderby'] ) {
+        if (isset($vars['orderby']) && 'vat_class' == $vars['orderby']) {
             $vars = array_merge(
                 $vars,
                 array(
@@ -290,7 +290,7 @@ 
         }
         
         // Check if "orderby" is set to "type"
-        if ( isset( $vars['orderby'] ) && 'type' == $vars['orderby'] ) {
+        if (isset($vars['orderby']) && 'type' == $vars['orderby']) {
             $vars = array_merge(
                 $vars,
                 array(
@@ -301,7 +301,7 @@ 
         }
         
         // Check if "orderby" is set to "recurring"
-        if ( isset( $vars['orderby'] ) && 'recurring' == $vars['orderby'] ) {
+        if (isset($vars['orderby']) && 'recurring' == $vars['orderby']) {
             $vars = array_merge(
                 $vars,
                 array(
@@ -311,120 +311,120 @@ 
             );
         }
 
-        $meta_query = !empty( $vars['meta_query'] ) ? $vars['meta_query'] : array();
+        $meta_query = !empty($vars['meta_query']) ? $vars['meta_query'] : array();
         // Filter vat rule type
-        if ( isset( $_GET['vat_rule'] ) && $_GET['vat_rule'] !== '' ) {
+        if (isset($_GET['vat_rule']) && $_GET['vat_rule'] !== '') {
             $meta_query[] = array(
                     'key'   => '_wpinv_vat_rule',
-                    'value' => sanitize_text_field( $_GET['vat_rule'] ),
+                    'value' => sanitize_text_field($_GET['vat_rule']),
                     'compare' => '='
                 );
         }
         
         // Filter vat class
-        if ( isset( $_GET['vat_class'] ) && $_GET['vat_class'] !== '' ) {
+        if (isset($_GET['vat_class']) && $_GET['vat_class'] !== '') {
             $meta_query[] = array(
                     'key'   => '_wpinv_vat_class',
-                    'value' => sanitize_text_field( $_GET['vat_class'] ),
+                    'value' => sanitize_text_field($_GET['vat_class']),
                     'compare' => '='
                 );
         }
         
         // Filter item type
-        if ( isset( $_GET['type'] ) && $_GET['type'] !== '' ) {
+        if (isset($_GET['type']) && $_GET['type'] !== '') {
             $meta_query[] = array(
                     'key'   => '_wpinv_type',
-                    'value' => sanitize_text_field( $_GET['type'] ),
+                    'value' => sanitize_text_field($_GET['type']),
                     'compare' => '='
                 );
         }
         
-        if ( !empty( $meta_query ) ) {
+        if (!empty($meta_query)) {
             $vars['meta_query'] = $meta_query;
         }
-    } else if ( 'wpi_discount' == $typenow ) {
-        $meta_query = !empty( $vars['meta_query'] ) ? $vars['meta_query'] : array();
+    } else if ('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_text_field( $_GET['discount_type'] ),
+                    'value' => sanitize_text_field($_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');
 
 function wpinv_options_page() {
-    $page       = isset( $_GET['page'] )                ? strtolower( $_GET['page'] )               : false;
+    $page = isset($_GET['page']) ? strtolower($_GET['page']) : false;
     
-    if ( $page !== 'wpinv-settings' ) {
+    if ($page !== 'wpinv-settings') {
         return;
     }
     
     $settings_tabs = wpinv_get_settings_tabs();
     $settings_tabs = empty($settings_tabs) ? array() : $settings_tabs;
-    $active_tab    = isset( $_GET['tab'] ) && array_key_exists( $_GET['tab'], $settings_tabs ) ? sanitize_text_field( $_GET['tab'] ) : 'general';
-    $sections      = wpinv_get_settings_tab_sections( $active_tab );
+    $active_tab    = isset($_GET['tab']) && array_key_exists($_GET['tab'], $settings_tabs) ? sanitize_text_field($_GET['tab']) : 'general';
+    $sections      = wpinv_get_settings_tab_sections($active_tab);
     $key           = 'main';
 
-    if ( is_array( $sections ) ) {
-        $key = key( $sections );
+    if (is_array($sections)) {
+        $key = key($sections);
     }
 
-    $registered_sections = wpinv_get_settings_tab_sections( $active_tab );
-    $section             = isset( $_GET['section'] ) && ! empty( $registered_sections ) && array_key_exists( $_GET['section'], $registered_sections ) ? $_GET['section'] : $key;
+    $registered_sections = wpinv_get_settings_tab_sections($active_tab);
+    $section             = isset($_GET['section']) && !empty($registered_sections) && array_key_exists($_GET['section'], $registered_sections) ? $_GET['section'] : $key;
     ob_start();
     ?>
     <div class="wrap">
         <h1 class="nav-tab-wrapper">
             <?php
-            foreach( wpinv_get_settings_tabs() as $tab_id => $tab_name ) {
-                $tab_url = add_query_arg( array(
+            foreach (wpinv_get_settings_tabs() as $tab_id => $tab_name) {
+                $tab_url = add_query_arg(array(
                     'settings-updated' => false,
                     'tab' => $tab_id,
-                ) );
+                ));
 
                 // Remove the section from the tabs so we always end up at the main section
-                $tab_url = remove_query_arg( 'section', $tab_url );
-                $tab_url = remove_query_arg( 'wpi_sub', $tab_url );
+                $tab_url = remove_query_arg('section', $tab_url);
+                $tab_url = remove_query_arg('wpi_sub', $tab_url);
 
                 $active = $active_tab == $tab_id ? ' nav-tab-active' : '';
 
-                echo '<a href="' . esc_url( $tab_url ) . '" title="' . esc_attr( $tab_name ) . '" class="nav-tab' . $active . '">';
-                    echo esc_html( $tab_name );
+                echo '<a href="' . esc_url($tab_url) . '" title="' . esc_attr($tab_name) . '" class="nav-tab' . $active . '">';
+                    echo esc_html($tab_name);
                 echo '</a>';
             }
             ?>
         </h1>
         <?php
-        $number_of_sections = count( $sections );
+        $number_of_sections = count($sections);
         $number = 0;
-        if ( $number_of_sections > 1 ) {
+        if ($number_of_sections > 1) {
             echo '<div><ul class="subsubsub">';
-            foreach( $sections as $section_id => $section_name ) {
+            foreach ($sections as $section_id => $section_name) {
                 echo '<li>';
                 $number++;
-                $tab_url = add_query_arg( array(
+                $tab_url = add_query_arg(array(
                     'settings-updated' => false,
                     'tab' => $active_tab,
                     'section' => $section_id
-                ) );
-                $tab_url = remove_query_arg( 'wpi_sub', $tab_url );
+                ));
+                $tab_url = remove_query_arg('wpi_sub', $tab_url);
                 $class = '';
-                if ( $section == $section_id ) {
+                if ($section == $section_id) {
                     $class = 'current';
                 }
-                echo '<a class="' . $class . '" href="' . esc_url( $tab_url ) . '">' . $section_name . '</a>';
+                echo '<a class="' . $class . '" href="' . esc_url($tab_url) . '">' . $section_name . '</a>';
 
-                if ( $number != $number_of_sections ) {
+                if ($number != $number_of_sections) {
                     echo ' | ';
                 }
                 echo '</li>';
@@ -436,19 +436,19 @@ 
             <form method="post" action="options.php">
                 <table class="form-table">
                 <?php
-                settings_fields( 'wpinv_settings' );
+                settings_fields('wpinv_settings');
 
-                if ( 'main' === $section ) {
-                    do_action( 'wpinv_settings_tab_top', $active_tab );
+                if ('main' === $section) {
+                    do_action('wpinv_settings_tab_top', $active_tab);
                 }
 
-                do_action( 'wpinv_settings_tab_top_' . $active_tab . '_' . $section );
-                do_settings_sections( 'wpinv_settings_' . $active_tab . '_' . $section );
-                do_action( 'wpinv_settings_tab_bottom_' . $active_tab . '_' . $section  );
+                do_action('wpinv_settings_tab_top_' . $active_tab . '_' . $section);
+                do_settings_sections('wpinv_settings_' . $active_tab . '_' . $section);
+                do_action('wpinv_settings_tab_bottom_' . $active_tab . '_' . $section);
 
                 // For backwards compatibility
-                if ( 'main' === $section ) {
-                    do_action( 'wpinv_settings_tab_bottom', $active_tab );
+                if ('main' === $section) {
+                    do_action('wpinv_settings_tab_bottom', $active_tab);
                 }
                 ?>
                 </table>
@@ -461,53 +461,53 @@ 
     echo $content;
 }
 
-function wpinv_item_type_class( $classes, $class, $post_id ) {
+function wpinv_item_type_class($classes, $class, $post_id) {
     global $pagenow, $typenow;
 
-    if ( $pagenow == 'edit.php' && $typenow == 'wpi_item' && get_post_type( $post_id ) == $typenow ) {
-        if ( $type = get_post_meta( $post_id, '_wpinv_type', true ) ) {
-            $classes[] = 'wpi-type-' . sanitize_html_class( $type );
+    if ($pagenow == 'edit.php' && $typenow == 'wpi_item' && get_post_type($post_id) == $typenow) {
+        if ($type = get_post_meta($post_id, '_wpinv_type', true)) {
+            $classes[] = 'wpi-type-' . sanitize_html_class($type);
         }
         
-        if ( !wpinv_item_is_editable( $post_id ) ) {
+        if (!wpinv_item_is_editable($post_id)) {
             $classes[] = 'wpi-editable-n';
         }
     }
     return $classes;
 }
-add_filter( 'post_class', 'wpinv_item_type_class', 10, 3 );
+add_filter('post_class', 'wpinv_item_type_class', 10, 3);
 
 function wpinv_check_quick_edit() {
     global $pagenow, $current_screen, $wpinv_item_screen;
 
-    if ( $pagenow == 'edit.php' && !empty( $current_screen->post_type ) ) {
-        if ( empty( $wpinv_item_screen ) ) {
-            if ( $current_screen->post_type == 'wpi_item' ) {
+    if ($pagenow == 'edit.php' && !empty($current_screen->post_type)) {
+        if (empty($wpinv_item_screen)) {
+            if ($current_screen->post_type == 'wpi_item') {
                 $wpinv_item_screen = 'y';
             } else {
                 $wpinv_item_screen = 'n';
             }
         }
 
-        if ( $wpinv_item_screen == 'y' && $pagenow == 'edit.php' ) {
-            add_filter( 'post_row_actions', 'wpinv_item_disable_quick_edit', 10, 2 );
-            add_filter( 'page_row_actions', 'wpinv_item_disable_quick_edit', 10, 2 );
+        if ($wpinv_item_screen == 'y' && $pagenow == 'edit.php') {
+            add_filter('post_row_actions', 'wpinv_item_disable_quick_edit', 10, 2);
+            add_filter('page_row_actions', 'wpinv_item_disable_quick_edit', 10, 2);
         }
     }
 }
-add_action( 'admin_head', 'wpinv_check_quick_edit', 10 );
+add_action('admin_head', 'wpinv_check_quick_edit', 10);
 
-function wpinv_item_disable_quick_edit( $actions = array(), $row = null ) {
-    if ( isset( $actions['inline hide-if-no-js'] ) ) {
-        unset( $actions['inline hide-if-no-js'] );
+function wpinv_item_disable_quick_edit($actions = array(), $row = null) {
+    if (isset($actions['inline hide-if-no-js'])) {
+        unset($actions['inline hide-if-no-js']);
     }
     
-    if ( !empty( $row->post_type ) && $row->post_type == 'wpi_item' && !wpinv_item_is_editable( $row ) ) {
-        if ( isset( $actions['trash'] ) ) {
-            unset( $actions['trash'] );
+    if (!empty($row->post_type) && $row->post_type == 'wpi_item' && !wpinv_item_is_editable($row)) {
+        if (isset($actions['trash'])) {
+            unset($actions['trash']);
         }
-        if ( isset( $actions['delete'] ) ) {
-            unset( $actions['delete'] );
+        if (isset($actions['delete'])) {
+            unset($actions['delete']);
         }
     }
 
@@ -524,19 +524,19 @@ 
  * @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 ( $option_value > 0 && ( $page_object = get_post( $option_value ) ) ) {
-        if ( 'page' === $page_object->post_type && ! in_array( $page_object->post_status, array( 'pending', 'trash', 'future', 'auto-draft' ) ) ) {
+    if ($option_value > 0 && ($page_object = get_post($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($post_parent)){
+    if (!empty($post_parent)) {
         $page = get_page_by_path($post_parent);
         if ($page) {
             $post_parent = $page->ID;
@@ -545,40 +545,40 @@ 
         }
     }
 
-    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',
@@ -590,11 +590,11 @@ 
             '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;

templates/wpinv-invoice-history.php

Spacing +41 added lines, -41 removed lines

@@ -1,80 +1,80 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) {
+if (!defined('ABSPATH')) {
 	exit;
 }
 
-if ( !( $user_id = get_current_user_id() ) ) {
+if (!($user_id = get_current_user_id())) {
     ?>
-    <div class="wpinv-empty alert alert-error"><?php _e( 'You are not allowed to access this section', 'invoicing' ) ;?></div>
+    <div class="wpinv-empty alert alert-error"><?php _e('You are not allowed to access this section', 'invoicing'); ?></div>
     <?php
     return;
 }
 
 global $current_page;
-$current_page   = empty( $current_page ) ? 1 : absint( $current_page );
-$query          = apply_filters( 'wpinv_user_invoices_query', array( 'user' => $user_id, 'page' => $current_page, 'paginate' => true ) );
-$user_invoices  = wpinv_get_invoices( $query );
+$current_page   = empty($current_page) ? 1 : absint($current_page);
+$query          = apply_filters('wpinv_user_invoices_query', array('user' => $user_id, 'page' => $current_page, 'paginate' => true));
+$user_invoices  = wpinv_get_invoices($query);
 $has_invoices   = 0 < $user_invoices->total;
     
-do_action( 'wpinv_before_user_invoices', $has_invoices ); ?>
+do_action('wpinv_before_user_invoices', $has_invoices); ?>
 
-<?php if ( $has_invoices ) { ?>
+<?php if ($has_invoices) { ?>
 	<table class="table table-bordered table-hover wpi-user-invoices">
 		<thead>
 			<tr>
-				<?php foreach ( wpinv_get_user_invoices_columns() as $column_id => $column_name ) : ?>
-					<th class="<?php echo esc_attr( $column_id ); ?> <?php echo (!empty($column_name['class']) ? $column_name['class'] : '');?>"><span class="nobr"><?php echo esc_html( $column_name['title'] ); ?></span></th>
+				<?php foreach (wpinv_get_user_invoices_columns() as $column_id => $column_name) : ?>
+					<th class="<?php echo esc_attr($column_id); ?> <?php echo (!empty($column_name['class']) ? $column_name['class'] : ''); ?>"><span class="nobr"><?php echo esc_html($column_name['title']); ?></span></th>
 				<?php endforeach; ?>
 			</tr>
 		</thead>
 
 		<tbody>
-			<?php foreach ( $user_invoices->invoices as $invoice ) {
+			<?php foreach ($user_invoices->invoices as $invoice) {
 				?>
 				<tr class="wpinv-item wpinv-item-<?php echo $invoice_status = $invoice->get_status(); ?>">
-					<?php foreach ( wpinv_get_user_invoices_columns() as $column_id => $column_name ) : ?>
-						<td class="<?php echo esc_attr( $column_id ); ?> <?php echo (!empty($column_name['class']) ? $column_name['class'] : '');?>" data-title="<?php echo esc_attr( $column_name['title'] ); ?>">
-							<?php if ( has_action( 'wpinv_user_invoices_column_' . $column_id ) ) : ?>
-								<?php do_action( 'wpinv_user_invoices_column_' . $column_id, $invoice ); ?>
-
-							<?php elseif ( 'invoice-number' === $column_id ) : ?>
-								<a href="<?php echo esc_url( $invoice->get_view_url() ); ?>">
-									<?php echo _x( '#', 'hash before invoice number', 'invoicing' ) . $invoice->get_number(); ?>
+					<?php foreach (wpinv_get_user_invoices_columns() as $column_id => $column_name) : ?>
+						<td class="<?php echo esc_attr($column_id); ?> <?php echo (!empty($column_name['class']) ? $column_name['class'] : ''); ?>" data-title="<?php echo esc_attr($column_name['title']); ?>">
+							<?php if (has_action('wpinv_user_invoices_column_' . $column_id)) : ?>
+								<?php do_action('wpinv_user_invoices_column_' . $column_id, $invoice); ?>
+
+							<?php elseif ('invoice-number' === $column_id) : ?>
+								<a href="<?php echo esc_url($invoice->get_view_url()); ?>">
+									<?php echo _x('#', 'hash before invoice number', 'invoicing') . $invoice->get_number(); ?>
 								</a>
 
-							<?php elseif ( 'invoice-date' === $column_id ) : $date = wpinv_get_invoice_date( $invoice->ID ); $dateYMD = wpinv_get_invoice_date( $invoice->ID, 'Y-m-d H:i:s' ); ?>
-								<time datetime="<?php echo strtotime( $dateYMD ); ?>" title="<?php echo $dateYMD; ?>"><?php echo $date; ?></time>
+							<?php elseif ('invoice-date' === $column_id) : $date = wpinv_get_invoice_date($invoice->ID); $dateYMD = wpinv_get_invoice_date($invoice->ID, 'Y-m-d H:i:s'); ?>
+								<time datetime="<?php echo strtotime($dateYMD); ?>" title="<?php echo $dateYMD; ?>"><?php echo $date; ?></time>
 
-							<?php elseif ( 'invoice-status' === $column_id ) : ?>
-								<?php echo wpinv_invoice_status_label( $invoice_status, $invoice->get_status( true ) ) ; ?>
+							<?php elseif ('invoice-status' === $column_id) : ?>
+								<?php echo wpinv_invoice_status_label($invoice_status, $invoice->get_status(true)); ?>
 
-							<?php elseif ( 'invoice-total' === $column_id ) : ?>
-								<?php echo $invoice->get_total( true ); ?>
+							<?php elseif ('invoice-total' === $column_id) : ?>
+								<?php echo $invoice->get_total(true); ?>
 
-							<?php elseif ( 'invoice-actions' === $column_id ) : ?>
+							<?php elseif ('invoice-actions' === $column_id) : ?>
 								<?php
 									$actions = array(
 										'pay'    => array(
 											'url'  => $invoice->get_checkout_payment_url(),
-											'name' => __( 'Pay Now', 'invoicing' ),
+											'name' => __('Pay Now', 'invoicing'),
                                             'class' => 'btn-success'
 										),
                                         'print'   => array(
 											'url'  => $invoice->get_view_url(),
-											'name' => __( 'Print', 'invoicing' ),
+											'name' => __('Print', 'invoicing'),
                                             'class' => 'btn-primary',
                                             'attrs' => 'target="_blank"'
 										)
 									);
 
-									if ( ! $invoice->needs_payment() ) {
-										unset( $actions['pay'] );
+									if (!$invoice->needs_payment()) {
+										unset($actions['pay']);
 									}
 
-									if ( $actions = apply_filters( 'wpinv_user_invoices_actions', $actions, $invoice ) ) {
-										foreach ( $actions as $key => $action ) {
+									if ($actions = apply_filters('wpinv_user_invoices_actions', $actions, $invoice)) {
+										foreach ($actions as $key => $action) {
 											$class = !empty($action['class']) ? sanitize_html_class($action['class']) : '';
-                                            echo '<a href="' . esc_url( $action['url'] ) . '" class="btn btn-sm ' . $class . ' ' . sanitize_html_class( $key ) . '" ' . ( !empty($action['attrs']) ? $action['attrs'] : '' ) . '>' . $action['name'] . '</a>';
+                                            echo '<a href="' . esc_url($action['url']) . '" class="btn btn-sm ' . $class . ' ' . sanitize_html_class($key) . '" ' . (!empty($action['attrs']) ? $action['attrs'] : '') . '>' . $action['name'] . '</a>';
 										}
 									}
 								?>
@@ -86,9 +86,9 @@ 
 		</tbody>
 	</table>
 
-	<?php do_action( 'wpinv_before_user_invoices_pagination' ); ?>
+	<?php do_action('wpinv_before_user_invoices_pagination'); ?>
 
-	<?php if ( 1 < $user_invoices->max_num_pages ) : ?>
+	<?php if (1 < $user_invoices->max_num_pages) : ?>
 		<div class="invoicing-Pagination">
 			<?php
 			$big = 999999;
@@ -100,20 +100,20 @@ 
 			else
 				$current_page = 1;
 
-			echo paginate_links( array(
-				'base'    => str_replace( $big, '%#%', esc_url( get_pagenum_link( $big ) ) ),
+			echo paginate_links(array(
+				'base'    => str_replace($big, '%#%', esc_url(get_pagenum_link($big))),
 				'format'  => '?paged=%#%',
-				'current' => max( 1, $current_page ),
+				'current' => max(1, $current_page),
 				'total'   => $user_invoices->max_num_pages,
-			) );
+			));
 			?>
 		</div>
 	<?php endif; ?>
 
 <?php } else { ?>
 	<div class="wpinv-empty alert-info">
-		<?php _e( 'No invoice has been made yet.', 'invoicing' ); ?>
+		<?php _e('No invoice has been made yet.', 'invoicing'); ?>
 	</div>
 <?php } ?>
 
-<?php do_action( 'wpinv_after_user_invoices', $has_invoices ); ?>
+<?php do_action('wpinv_after_user_invoices', $has_invoices); ?>

includes/admin/wpinv-upgrade-functions.php

Spacing +17 added lines, -17 removed lines

@@ -11,45 +11,45 @@
  * @since 1.0.0
 */
 function wpinv_automatic_upgrade() {
-    $wpi_version = get_option( 'wpinv_version' );
+    $wpi_version = get_option('wpinv_version');
     
-    if ( $wpi_version == WPINV_VERSION ) {
+    if ($wpi_version == WPINV_VERSION) {
         return;
     }
     
-    if ( version_compare( $wpi_version, '0.0.5', '<' ) ) {
+    if (version_compare($wpi_version, '0.0.5', '<')) {
         wpinv_v005_upgrades();
     }
     
-    update_option( 'wpinv_version', WPINV_VERSION );
+    update_option('wpinv_version', WPINV_VERSION);
 }
-add_action( 'admin_init', 'wpinv_automatic_upgrade' );
+add_action('admin_init', 'wpinv_automatic_upgrade');
 
 function wpinv_v005_upgrades() {
     global $wpdb;
     
     // Invoices status
-    $results = $wpdb->get_results( "SELECT ID FROM " . $wpdb->posts . " WHERE post_type = 'wpi_invoice' AND post_status IN( 'pending', 'processing', 'onhold', 'refunded', 'cancelled', 'failed', 'renewal' )" );
-    if ( !empty( $results ) ) {
-        $wpdb->query( "UPDATE " . $wpdb->posts . " SET post_status = CONCAT( 'wpi-', post_status ) WHERE post_type = 'wpi_invoice' AND post_status IN( 'pending', 'processing', 'onhold', 'refunded', 'cancelled', 'failed', 'renewal' )" );
+    $results = $wpdb->get_results("SELECT ID FROM " . $wpdb->posts . " WHERE post_type = 'wpi_invoice' AND post_status IN( 'pending', 'processing', 'onhold', 'refunded', 'cancelled', 'failed', 'renewal' )");
+    if (!empty($results)) {
+        $wpdb->query("UPDATE " . $wpdb->posts . " SET post_status = CONCAT( 'wpi-', post_status ) WHERE post_type = 'wpi_invoice' AND post_status IN( 'pending', 'processing', 'onhold', 'refunded', 'cancelled', 'failed', 'renewal' )");
         
         // Clean post cache
-        foreach ( $results as $row ) {
-            clean_post_cache( $row->ID );
+        foreach ($results as $row) {
+            clean_post_cache($row->ID);
         }
     }
     
     // Item meta key changes
     $query = "SELECT DISTINCT post_id FROM " . $wpdb->postmeta . " WHERE meta_key IN( '_wpinv_item_id', '_wpinv_package_id', '_wpinv_post_id', '_wpinv_cpt_name', '_wpinv_cpt_singular_name' )";
-    $results = $wpdb->get_results( $query );
+    $results = $wpdb->get_results($query);
     
-    if ( !empty( $results ) ) {
-        $wpdb->query( "UPDATE " . $wpdb->postmeta . " SET meta_key = '_wpinv_custom_id' WHERE meta_key IN( '_wpinv_item_id', '_wpinv_package_id', '_wpinv_post_id' )" );
-        $wpdb->query( "UPDATE " . $wpdb->postmeta . " SET meta_key = '_wpinv_custom_name' WHERE meta_key = '_wpinv_cpt_name'" );
-        $wpdb->query( "UPDATE " . $wpdb->postmeta . " SET meta_key = '_wpinv_custom_singular_name' WHERE meta_key = '_wpinv_cpt_singular_name'" );
+    if (!empty($results)) {
+        $wpdb->query("UPDATE " . $wpdb->postmeta . " SET meta_key = '_wpinv_custom_id' WHERE meta_key IN( '_wpinv_item_id', '_wpinv_package_id', '_wpinv_post_id' )");
+        $wpdb->query("UPDATE " . $wpdb->postmeta . " SET meta_key = '_wpinv_custom_name' WHERE meta_key = '_wpinv_cpt_name'");
+        $wpdb->query("UPDATE " . $wpdb->postmeta . " SET meta_key = '_wpinv_custom_singular_name' WHERE meta_key = '_wpinv_cpt_singular_name'");
         
-        foreach ( $results as $row ) {
-            clean_post_cache( $row->post_id );
+        foreach ($results as $row) {
+            clean_post_cache($row->post_id);
         }
     }
 

includes/wpinv-post-types.php

Spacing +103 added lines, -103 removed lines

@@ -7,44 +7,44 @@ 
  */
  
 // MUST have WordPress.
-if ( !defined( 'WPINC' ) ) {
-    exit( 'Do NOT access this file directly: ' . basename( __FILE__ ) );
+if (!defined('WPINC')) {
+    exit('Do NOT access this file directly: ' . basename(__FILE__));
 }
 
-add_action( 'init', 'wpinv_register_post_types', 1 );
+add_action('init', 'wpinv_register_post_types', 1);
 function wpinv_register_post_types() {    
     $labels = array(
-        'name'               => _x( 'Invoices', 'post type general name', 'invoicing' ),
-        'singular_name'      => _x( 'Invoice', 'post type singular name', 'invoicing' ),
-        'menu_name'          => _x( 'Invoices', 'admin menu', 'invoicing' ),
-        'name_admin_bar'     => _x( 'Invoice', 'add new on admin bar', 'invoicing' ),
-        'add_new'            => _x( 'Add New', 'book', 'invoicing' ),
-        'add_new_item'       => __( 'Add New Invoice', 'invoicing' ),
-        'new_item'           => __( 'New Invoice', 'invoicing' ),
-        'edit_item'          => __( 'Edit Invoice', 'invoicing' ),
-        'view_item'          => __( 'View Invoice', 'invoicing' ),
-        'all_items'          => __( 'Invoices', 'invoicing' ),
-        'search_items'       => __( 'Search Invoices', 'invoicing' ),
-        'parent_item_colon'  => __( 'Parent Invoices:', 'invoicing' ),
-        'not_found'          => __( 'No invoices found.', 'invoicing' ),
-        'not_found_in_trash' => __( 'No invoices found in trash.', 'invoicing' )
+        'name'               => _x('Invoices', 'post type general name', 'invoicing'),
+        'singular_name'      => _x('Invoice', 'post type singular name', 'invoicing'),
+        'menu_name'          => _x('Invoices', 'admin menu', 'invoicing'),
+        'name_admin_bar'     => _x('Invoice', 'add new on admin bar', 'invoicing'),
+        'add_new'            => _x('Add New', 'book', 'invoicing'),
+        'add_new_item'       => __('Add New Invoice', 'invoicing'),
+        'new_item'           => __('New Invoice', 'invoicing'),
+        'edit_item'          => __('Edit Invoice', 'invoicing'),
+        'view_item'          => __('View Invoice', 'invoicing'),
+        'all_items'          => __('Invoices', 'invoicing'),
+        'search_items'       => __('Search Invoices', 'invoicing'),
+        'parent_item_colon'  => __('Parent Invoices:', 'invoicing'),
+        'not_found'          => __('No invoices found.', 'invoicing'),
+        'not_found_in_trash' => __('No invoices found in trash.', 'invoicing')
     );
-    $labels = apply_filters( 'wpinv_labels', $labels );
+    $labels = apply_filters('wpinv_labels', $labels);
     
     $menu_icon = WPINV_PLUGIN_URL . '/assets/images/favicon.ico';
-    $menu_icon = apply_filters( 'wpinv_menu_icon_invoice', $menu_icon );
+    $menu_icon = apply_filters('wpinv_menu_icon_invoice', $menu_icon);
 
     $cap_type = 'wpi_invoice';
     $args = array(
         'labels'             => $labels,
-        'description'        => __( 'This is where invoices are stored.', 'invoicing' ),
+        'description'        => __('This is where invoices are stored.', 'invoicing'),
         'public'             => true,
         'can_export'         => true,
         '_builtin'           => false,
         'publicly_queryable' => true,
         'exclude_from_search'=> true,
         'show_ui'            => true,
-        'show_in_menu'       => current_user_can( 'manage_invoicing' ) ? 'wpinv' : true,
+        'show_in_menu'       => current_user_can('manage_invoicing') ? 'wpinv' : true,
         'query_var'          => false,
         'rewrite'            => true,
         'capability_type'    => 'wpi_invoice',
@@ -68,38 +68,38 @@ 
         'has_archive'        => false,
         'hierarchical'       => false,
         'menu_position'      => null,
-        'supports'           => array( 'title', 'author' ),
+        'supports'           => array('title', 'author'),
         'menu_icon'          => $menu_icon,
     );
             
-    $args = apply_filters( 'wpinv_register_post_type_invoice', $args );
+    $args = apply_filters('wpinv_register_post_type_invoice', $args);
     
-    register_post_type( 'wpi_invoice', $args );
+    register_post_type('wpi_invoice', $args);
     
     $items_labels = array(
-        'name'               => _x( 'Items', 'post type general name', 'invoicing' ),
-        'singular_name'      => _x( 'Item', 'post type singular name', 'invoicing' ),
-        'menu_name'          => _x( 'Items', 'admin menu', 'invoicing' ),
-        'add_new'            => _x( 'Add New', 'wpi_item', 'invoicing' ),
-        'add_new_item'       => __( 'Add New Item', 'invoicing' ),
-        'new_item'           => __( 'New Item', 'invoicing' ),
-        'edit_item'          => __( 'Edit Item', 'invoicing' ),
-        'view_item'          => __( 'View Item', 'invoicing' ),
-        'all_items'          => __( 'Items', 'invoicing' ),
-        'search_items'       => __( 'Search Items', 'invoicing' ),
+        'name'               => _x('Items', 'post type general name', 'invoicing'),
+        'singular_name'      => _x('Item', 'post type singular name', 'invoicing'),
+        'menu_name'          => _x('Items', 'admin menu', 'invoicing'),
+        'add_new'            => _x('Add New', 'wpi_item', 'invoicing'),
+        'add_new_item'       => __('Add New Item', 'invoicing'),
+        'new_item'           => __('New Item', 'invoicing'),
+        'edit_item'          => __('Edit Item', 'invoicing'),
+        'view_item'          => __('View Item', 'invoicing'),
+        'all_items'          => __('Items', 'invoicing'),
+        'search_items'       => __('Search Items', 'invoicing'),
         'parent_item_colon'  => '',
-        'not_found'          => __( 'No items found.', 'invoicing' ),
-        'not_found_in_trash' => __( 'No items found in trash.', 'invoicing' )
+        'not_found'          => __('No items found.', 'invoicing'),
+        'not_found_in_trash' => __('No items found in trash.', 'invoicing')
     );
-    $items_labels = apply_filters( 'wpinv_items_labels', $items_labels );
+    $items_labels = apply_filters('wpinv_items_labels', $items_labels);
 
     $cap_type = 'wpi_item';
     $invoice_item_args = array(
         'labels'                => $items_labels,
         'public'                => false,
         'show_ui'               => true,
-        'show_in_menu'          => current_user_can( 'manage_invoicing' ) ? 'wpinv' : false,
-        'supports'              => array( 'title', 'excerpt' ),
+        'show_in_menu'          => current_user_can('manage_invoicing') ? 'wpinv' : false,
+        'supports'              => array('title', 'excerpt'),
         'register_meta_box_cb'  => 'wpinv_register_item_meta_boxes',
         'rewrite'               => false,
         'query_var'             => false,
@@ -123,40 +123,40 @@ 
         ),
         'can_export'            => true,
     );
-    $invoice_item_args = apply_filters( 'wpinv_register_post_type_invoice_item', $invoice_item_args );
+    $invoice_item_args = apply_filters('wpinv_register_post_type_invoice_item', $invoice_item_args);
 
-    register_post_type( 'wpi_item', $invoice_item_args );
+    register_post_type('wpi_item', $invoice_item_args);
     
     $labels = array(
-        'name'               => _x( 'Discounts', 'post type general name', 'invoicing' ),
-        'singular_name'      => _x( 'Discount', 'post type singular name', 'invoicing' ),
-        'menu_name'          => _x( 'Discounts', 'admin menu', 'invoicing' ),
-        'name_admin_bar'     => _x( 'Discount', 'add new on admin bar', 'invoicing' ),
-        'add_new'            => _x( 'Add New', 'book', 'invoicing' ),
-        'add_new_item'       => __( 'Add New Discount', 'invoicing' ),
-        'new_item'           => __( 'New Discount', 'invoicing' ),
-        'edit_item'          => __( 'Edit Discount', 'invoicing' ),
-        'view_item'          => __( 'View Discount', 'invoicing' ),
-        'all_items'          => __( 'Discounts', 'invoicing' ),
-        'search_items'       => __( 'Search Discounts', 'invoicing' ),
-        'parent_item_colon'  => __( 'Parent Discounts:', 'invoicing' ),
-        'not_found'          => __( 'No discounts found.', 'invoicing' ),
-        'not_found_in_trash' => __( 'No discounts found in trash.', 'invoicing' )
+        'name'               => _x('Discounts', 'post type general name', 'invoicing'),
+        'singular_name'      => _x('Discount', 'post type singular name', 'invoicing'),
+        'menu_name'          => _x('Discounts', 'admin menu', 'invoicing'),
+        'name_admin_bar'     => _x('Discount', 'add new on admin bar', 'invoicing'),
+        'add_new'            => _x('Add New', 'book', 'invoicing'),
+        'add_new_item'       => __('Add New Discount', 'invoicing'),
+        'new_item'           => __('New Discount', 'invoicing'),
+        'edit_item'          => __('Edit Discount', 'invoicing'),
+        'view_item'          => __('View Discount', 'invoicing'),
+        'all_items'          => __('Discounts', 'invoicing'),
+        'search_items'       => __('Search Discounts', 'invoicing'),
+        'parent_item_colon'  => __('Parent Discounts:', 'invoicing'),
+        'not_found'          => __('No discounts found.', 'invoicing'),
+        'not_found_in_trash' => __('No discounts found in trash.', 'invoicing')
     );
-    $labels = apply_filters( 'wpinv_discounts_labels', $labels );
+    $labels = apply_filters('wpinv_discounts_labels', $labels);
 
     $cap_type = 'wpi_discount';
     
     $args = array(
         'labels'             => $labels,
-        'description'        => __( 'This is where you can add new discounts that users can use in invoices.', 'invoicing' ),
+        'description'        => __('This is where you can add new discounts that users can use in invoices.', 'invoicing'),
         'public'             => false,
         'can_export'         => true,
         '_builtin'           => false,
         'publicly_queryable' => false,
         'exclude_from_search'=> true,
         'show_ui'            => true,
-        'show_in_menu'       => current_user_can( 'manage_invoicing' ) ? 'wpinv' : false,
+        'show_in_menu'       => current_user_can('manage_invoicing') ? 'wpinv' : false,
         'query_var'          => false,
         'rewrite'            => false,
         'capability_type'    => $cap_type,
@@ -179,7 +179,7 @@ 
         ),
         'has_archive'        => false,
         'hierarchical'       => false,
-        'supports'           => array( 'title', 'excerpt' ),
+        'supports'           => array('title', 'excerpt'),
         'register_meta_box_cb'  => 'wpinv_register_discount_meta_boxes',
         'show_in_nav_menus'  => false,
         'show_in_admin_bar'  => true,
@@ -187,107 +187,107 @@ 
         'menu_position'      => null,
     );
             
-    $args = apply_filters( 'wpinv_register_post_type_discount', $args );
+    $args = apply_filters('wpinv_register_post_type_discount', $args);
     
-    register_post_type( 'wpi_discount', $args );
+    register_post_type('wpi_discount', $args);
 }
 
 function wpinv_get_default_labels() {
     $defaults = array(
-       'singular' => __( 'Invoice', 'invoicing' ),
-       'plural'   => __( 'Invoices', 'invoicing' )
+       'singular' => __('Invoice', 'invoicing'),
+       'plural'   => __('Invoices', 'invoicing')
     );
     
-    return apply_filters( 'wpinv_default_invoices_name', $defaults );
+    return apply_filters('wpinv_default_invoices_name', $defaults);
 }
 
-function wpinv_get_label_singular( $lowercase = false ) {
+function wpinv_get_label_singular($lowercase = false) {
     $defaults = wpinv_get_default_labels();
     
-    return ($lowercase) ? strtolower( $defaults['singular'] ) : $defaults['singular'];
+    return ($lowercase) ? strtolower($defaults['singular']) : $defaults['singular'];
 }
 
-function wpinv_get_label_plural( $lowercase = false ) {
+function wpinv_get_label_plural($lowercase = false) {
     $defaults = wpinv_get_default_labels();
     
-    return ( $lowercase ) ? strtolower( $defaults['plural'] ) : $defaults['plural'];
+    return ($lowercase) ? strtolower($defaults['plural']) : $defaults['plural'];
 }
 
-function wpinv_change_default_title( $title ) {
-     if ( !is_admin() ) {
+function wpinv_change_default_title($title) {
+     if (!is_admin()) {
         $label = wpinv_get_label_singular();
-        $title = sprintf( __( 'Enter %s name here', 'invoicing' ), $label );
+        $title = sprintf(__('Enter %s name here', 'invoicing'), $label);
         return $title;
      }
 
      $screen = get_current_screen();
 
-     if ( 'wpi_invoice' == $screen->post_type ) {
+     if ('wpi_invoice' == $screen->post_type) {
         $label = wpinv_get_label_singular();
-        $title = sprintf( __( 'Enter %s name here', 'invoicing' ), $label );
+        $title = sprintf(__('Enter %s name here', 'invoicing'), $label);
      }
 
      return $title;
 }
-add_filter( 'enter_title_here', 'wpinv_change_default_title' );
+add_filter('enter_title_here', 'wpinv_change_default_title');
 
 function wpinv_register_post_status() {
-    register_post_status( 'wpi-pending', array(
-        'label'                     => _x( 'Pending', 'Invoice status', 'invoicing' ),
+    register_post_status('wpi-pending', array(
+        'label'                     => _x('Pending', 'Invoice status', 'invoicing'),
         'public'                    => true,
         'exclude_from_search'       => true,
         'show_in_admin_all_list'    => true,
         'show_in_admin_status_list' => true,
-        'label_count'               => _n_noop( 'Pending <span class="count">(%s)</span>', 'Pending <span class="count">(%s)</span>', 'invoicing' )
-    ) );
-    register_post_status( 'wpi-processing', array(
-        'label'                     => _x( 'Processing', 'Invoice status', 'invoicing' ),
+        'label_count'               => _n_noop('Pending <span class="count">(%s)</span>', 'Pending <span class="count">(%s)</span>', 'invoicing')
+    ));
+    register_post_status('wpi-processing', array(
+        'label'                     => _x('Processing', 'Invoice status', 'invoicing'),
         'public'                    => true,
         'exclude_from_search'       => true,
         'show_in_admin_all_list'    => true,
         'show_in_admin_status_list' => true,
-        'label_count'               => _n_noop( 'Processing <span class="count">(%s)</span>', 'Processing <span class="count">(%s)</span>', 'invoicing' )
-    ) );
-    register_post_status( 'wpi-onhold', array(
-        'label'                     => _x( 'On Hold', 'Invoice status', 'invoicing' ),
+        'label_count'               => _n_noop('Processing <span class="count">(%s)</span>', 'Processing <span class="count">(%s)</span>', 'invoicing')
+    ));
+    register_post_status('wpi-onhold', array(
+        'label'                     => _x('On Hold', 'Invoice status', 'invoicing'),
         'public'                    => true,
         'exclude_from_search'       => true,
         'show_in_admin_all_list'    => true,
         'show_in_admin_status_list' => true,
-        'label_count'               => _n_noop( 'On Hold <span class="count">(%s)</span>', 'On Hold <span class="count">(%s)</span>', 'invoicing' )
-    ) );
-    register_post_status( 'wpi-cancelled', array(
-        'label'                     => _x( 'Cancelled', 'Invoice status', 'invoicing' ),
+        'label_count'               => _n_noop('On Hold <span class="count">(%s)</span>', 'On Hold <span class="count">(%s)</span>', 'invoicing')
+    ));
+    register_post_status('wpi-cancelled', array(
+        'label'                     => _x('Cancelled', 'Invoice status', 'invoicing'),
         'public'                    => true,
         'exclude_from_search'       => true,
         'show_in_admin_all_list'    => true,
         'show_in_admin_status_list' => true,
-        'label_count'               => _n_noop( 'Cancelled <span class="count">(%s)</span>', 'Cancelled <span class="count">(%s)</span>', 'invoicing' )
-    ) );
-    register_post_status( 'wpi-refunded', array(
-        'label'                     => _x( 'Refunded', 'Invoice status', 'invoicing' ),
+        'label_count'               => _n_noop('Cancelled <span class="count">(%s)</span>', 'Cancelled <span class="count">(%s)</span>', 'invoicing')
+    ));
+    register_post_status('wpi-refunded', array(
+        'label'                     => _x('Refunded', 'Invoice status', 'invoicing'),
         'public'                    => true,
         'exclude_from_search'       => true,
         'show_in_admin_all_list'    => true,
         'show_in_admin_status_list' => true,
-        'label_count'               => _n_noop( 'Refunded <span class="count">(%s)</span>', 'Refunded <span class="count">(%s)</span>', 'invoicing' )
-    ) );
-    register_post_status( 'wpi-failed', array(
-        'label'                     => _x( 'Failed', 'Invoice status', 'invoicing' ),
+        'label_count'               => _n_noop('Refunded <span class="count">(%s)</span>', 'Refunded <span class="count">(%s)</span>', 'invoicing')
+    ));
+    register_post_status('wpi-failed', array(
+        'label'                     => _x('Failed', 'Invoice status', 'invoicing'),
         'public'                    => true,
         'exclude_from_search'       => true,
         'show_in_admin_all_list'    => true,
         'show_in_admin_status_list' => true,
-        'label_count'               => _n_noop( 'Failed <span class="count">(%s)</span>', 'Failed <span class="count">(%s)</span>', 'invoicing' )
-    ) );
-    register_post_status( 'wpi-renewal', array(
-        'label'                     => _x( 'Renewal', 'Invoice status', 'invoicing' ),
+        'label_count'               => _n_noop('Failed <span class="count">(%s)</span>', 'Failed <span class="count">(%s)</span>', 'invoicing')
+    ));
+    register_post_status('wpi-renewal', array(
+        'label'                     => _x('Renewal', 'Invoice status', 'invoicing'),
         'public'                    => true,
         'exclude_from_search'       => true,
         'show_in_admin_all_list'    => true,
         'show_in_admin_status_list' => true,
-        'label_count'               => _n_noop( 'Renewal <span class="count">(%s)</span>', 'Renewal <span class="count">(%s)</span>', 'invoicing' )
-    ) );
+        'label_count'               => _n_noop('Renewal <span class="count">(%s)</span>', 'Renewal <span class="count">(%s)</span>', 'invoicing')
+    ));
 }
-add_action( 'init', 'wpinv_register_post_status', 10 );
+add_action('init', 'wpinv_register_post_status', 10);
 

includes/wpinv-user-functions.php

Spacing +60 added lines, -60 removed lines

@@ -1,21 +1,21 @@ 
 <?php
 // Exit if accessed directly
-if ( ! defined( 'ABSPATH' ) ) exit;
+if (!defined('ABSPATH')) exit;
 
-function wpinv_get_users_invoices( $user = 0, $number = 20, $pagination = false, $status = 'publish' ) {
-    if ( empty( $user ) ) {
+function wpinv_get_users_invoices($user = 0, $number = 20, $pagination = false, $status = 'publish') {
+    if (empty($user)) {
         $user = get_current_user_id();
     }
 
-    if ( 0 === $user ) {
+    if (0 === $user) {
         return false;
     }
 
-    if ( $pagination ) {
-        if ( get_query_var( 'paged' ) )
+    if ($pagination) {
+        if (get_query_var('paged'))
             $paged = get_query_var('paged');
-        else if ( get_query_var( 'page' ) )
-            $paged = get_query_var( 'page' );
+        else if (get_query_var('page'))
+            $paged = get_query_var('page');
         else
             $paged = 1;
     }
@@ -24,21 +24,21 @@ 
         'post_type'      => 'wpi_invoice',
         'posts_per_page' => 20,
         'paged'          => null,
-        'post_status'    => array( 'publish', 'wpi-pending' ),
+        'post_status'    => array('publish', 'wpi-pending'),
         'user'           => $user,
         'order'          => 'date',
     );
 
-    $invoices = get_posts( $args );
+    $invoices = get_posts($args);
 
     // No invoices
-    if ( ! $invoices )
+    if (!$invoices)
         return false;
 
     return $invoices;
 }
 
-function wpinv_dropdown_users( $args = '' ) {
+function wpinv_dropdown_users($args = '') {
     $defaults = array(
         'show_option_all' => '', 'show_option_none' => '', 'hide_if_only_one_author' => '',
         'orderby' => 'display_name', 'order' => 'ASC',
@@ -49,18 +49,18 @@ 
         'option_none_value' => -1
     );
 
-    $defaults['selected'] = is_author() ? get_query_var( 'author' ) : 0;
+    $defaults['selected'] = is_author() ? get_query_var('author') : 0;
 
-    $r = wp_parse_args( $args, $defaults );
+    $r = wp_parse_args($args, $defaults);
 
-    $query_args = wp_array_slice_assoc( $r, array( 'blog_id', 'include', 'exclude', 'orderby', 'order', 'who' ) );
+    $query_args = wp_array_slice_assoc($r, array('blog_id', 'include', 'exclude', 'orderby', 'order', 'who'));
 
-    $fields = array( 'ID', 'user_login', 'user_email' );
+    $fields = array('ID', 'user_login', 'user_email');
 
-    $show = ! empty( $r['show'] ) ? $r['show'] : 'display_name';
-    if ( 'display_name_with_login' === $show ) {
+    $show = !empty($r['show']) ? $r['show'] : 'display_name';
+    if ('display_name_with_login' === $show) {
         $fields[] = 'display_name';
-    } else if ( 'display_name_with_email' === $show ) {
+    } else if ('display_name_with_email' === $show) {
         $fields[] = 'display_name';
     } else {
         $fields[] = $show;
@@ -72,99 +72,99 @@ 
     $show_option_none = $r['show_option_none'];
     $option_none_value = $r['option_none_value'];
 
-    $query_args = apply_filters( 'wpinv_dropdown_users_args', $query_args, $r );
+    $query_args = apply_filters('wpinv_dropdown_users_args', $query_args, $r);
 
-    $users = get_users( $query_args );
+    $users = get_users($query_args);
 
     $output = '';
-    if ( ! empty( $users ) && ( empty( $r['hide_if_only_one_author'] ) || count( $users ) > 1 ) ) {
-        $name = esc_attr( $r['name'] );
-        if ( $r['multi'] && ! $r['id'] ) {
+    if (!empty($users) && (empty($r['hide_if_only_one_author']) || count($users) > 1)) {
+        $name = esc_attr($r['name']);
+        if ($r['multi'] && !$r['id']) {
             $id = '';
         } else {
-            $id = $r['id'] ? " id='" . esc_attr( $r['id'] ) . "'" : " id='$name'";
+            $id = $r['id'] ? " id='" . esc_attr($r['id']) . "'" : " id='$name'";
         }
         $output = "<select name='{$name}'{$id} class='" . $r['class'] . "'>\n";
 
-        if ( $show_option_all ) {
+        if ($show_option_all) {
             $output .= "\t<option value='0'>$show_option_all</option>\n";
         }
 
-        if ( $show_option_none ) {
-            $_selected = selected( $option_none_value, $r['selected'], false );
-            $output .= "\t<option value='" . esc_attr( $option_none_value ) . "'$_selected>$show_option_none</option>\n";
+        if ($show_option_none) {
+            $_selected = selected($option_none_value, $r['selected'], false);
+            $output .= "\t<option value='" . esc_attr($option_none_value) . "'$_selected>$show_option_none</option>\n";
         }
 
-        if ( $r['include_selected'] && ( $r['selected'] > 0 ) ) {
+        if ($r['include_selected'] && ($r['selected'] > 0)) {
             $found_selected = false;
-            $r['selected'] = (int) $r['selected'];
-            foreach ( (array) $users as $user ) {
-                $user->ID = (int) $user->ID;
-                if ( $user->ID === $r['selected'] ) {
+            $r['selected'] = (int)$r['selected'];
+            foreach ((array)$users as $user) {
+                $user->ID = (int)$user->ID;
+                if ($user->ID === $r['selected']) {
                     $found_selected = true;
                 }
             }
 
-            if ( ! $found_selected ) {
-                $users[] = get_userdata( $r['selected'] );
+            if (!$found_selected) {
+                $users[] = get_userdata($r['selected']);
             }
         }
 
-        foreach ( (array) $users as $user ) {
-            if ( 'display_name_with_login' === $show ) {
+        foreach ((array)$users as $user) {
+            if ('display_name_with_login' === $show) {
                 /* translators: 1: display name, 2: user_login */
-                $display = sprintf( _x( '%1$s (%2$s)', 'user dropdown' ), $user->display_name, $user->user_login );
-            } elseif ( 'display_name_with_email' === $show ) {
+                $display = sprintf(_x('%1$s (%2$s)', 'user dropdown'), $user->display_name, $user->user_login);
+            } elseif ('display_name_with_email' === $show) {
                 /* translators: 1: display name, 2: user_email */
-                if ( $user->display_name == $user->user_email ) {
+                if ($user->display_name == $user->user_email) {
                     $display = $user->display_name;
                 } else {
-                    $display = sprintf( _x( '%1$s (%2$s)', 'user dropdown' ), $user->display_name, $user->user_email );
+                    $display = sprintf(_x('%1$s (%2$s)', 'user dropdown'), $user->display_name, $user->user_email);
                 }
-            } elseif ( ! empty( $user->$show ) ) {
+            } elseif (!empty($user->$show)) {
                 $display = $user->$show;
             } else {
                 $display = '(' . $user->user_login . ')';
             }
 
-            $_selected = selected( $user->ID, $r['selected'], false );
-            $output .= "\t<option value='$user->ID'$_selected>" . esc_html( $display ) . "</option>\n";
+            $_selected = selected($user->ID, $r['selected'], false);
+            $output .= "\t<option value='$user->ID'$_selected>" . esc_html($display) . "</option>\n";
         }
 
         $output .= "</select>";
     }
 
-    $html = apply_filters( 'wpinv_dropdown_users', $output );
+    $html = apply_filters('wpinv_dropdown_users', $output);
 
-    if ( $r['echo'] ) {
+    if ($r['echo']) {
         echo $html;
     }
     return $html;
 }
 
-function wpinv_guest_redirect( $redirect_to, $user_id = 0 ) {
-    if ( (int)wpinv_get_option( 'guest_checkout' ) && $user_id > 0 ) {
-        wpinv_login_user( $user_id );
+function wpinv_guest_redirect($redirect_to, $user_id = 0) {
+    if ((int)wpinv_get_option('guest_checkout') && $user_id > 0) {
+        wpinv_login_user($user_id);
     } else {
-        $redirect_to = wp_login_url( $redirect_to );
+        $redirect_to = wp_login_url($redirect_to);
     }
     
-    $redirect_to = apply_filters( 'wpinv_invoice_link_guest_redirect', $redirect_to, $user_id );
+    $redirect_to = apply_filters('wpinv_invoice_link_guest_redirect', $redirect_to, $user_id);
     
-    wp_redirect( $redirect_to );
+    wp_redirect($redirect_to);
 }
 
-function wpinv_login_user( $user_id ) {
-    if ( is_user_logged_in() ) {
+function wpinv_login_user($user_id) {
+    if (is_user_logged_in()) {
         return true;
     }
     
-    $user = get_user_by( 'id', $user_id );
+    $user = get_user_by('id', $user_id);
     
-    if ( !empty( $user ) && !is_wp_error( $user ) && !empty( $user->user_login ) ) {
-        wp_set_current_user( $user_id, $user->user_login );
-        wp_set_auth_cookie( $user_id );
-        do_action( 'wp_login', $user->user_login );
+    if (!empty($user) && !is_wp_error($user) && !empty($user->user_login)) {
+        wp_set_current_user($user_id, $user->user_login);
+        wp_set_auth_cookie($user_id);
+        do_action('wp_login', $user->user_login);
         
         return true;
     }

includes/gateways/bank_transfer.php

Spacing +27 added lines, -27 removed lines

@@ -1,12 +1,12 @@ 
 <?php
 // Exit if accessed directly
-if ( ! defined( 'ABSPATH' ) ) exit;
+if (!defined('ABSPATH')) exit;
 
-add_action( 'wpinv_bank_transfer_cc_form', '__return_false' );
+add_action('wpinv_bank_transfer_cc_form', '__return_false');
 
-function wpinv_process_bank_transfer_payment( $purchase_data ) {
-    if( ! wp_verify_nonce( $purchase_data['gateway_nonce'], 'wpi-gateway' ) ) {
-        wp_die( __( 'Nonce verification has failed', 'invoicing' ), __( 'Error', 'invoicing' ), array( 'response' => 403 ) );
+function wpinv_process_bank_transfer_payment($purchase_data) {
+    if (!wp_verify_nonce($purchase_data['gateway_nonce'], 'wpi-gateway')) {
+        wp_die(__('Nonce verification has failed', 'invoicing'), __('Error', 'invoicing'), array('response' => 403));
     }
 
     // Collect payment data
@@ -24,37 +24,37 @@ 
     );
 
     // Record the pending payment
-    $invoice = wpinv_get_invoice( $purchase_data['invoice_id'] );
+    $invoice = wpinv_get_invoice($purchase_data['invoice_id']);
     
-    if ( !empty( $invoice ) ) {
-        wpinv_set_payment_transaction_id( $invoice->ID, $invoice->generate_key() );
-        wpinv_update_payment_status( $invoice, 'wpi-pending' );
+    if (!empty($invoice)) {
+        wpinv_set_payment_transaction_id($invoice->ID, $invoice->generate_key());
+        wpinv_update_payment_status($invoice, 'wpi-pending');
         
         // Empty the shopping cart
         wpinv_empty_cart();
         
-        wpinv_send_to_success_page( array( 'invoice_key' => $invoice->get_key() ) );
+        wpinv_send_to_success_page(array('invoice_key' => $invoice->get_key()));
     } else {
-        wpinv_record_gateway_error( __( 'Payment Error', 'invoicing' ), sprintf( __( 'Payment creation failed while processing a bank transfer payment. Payment data: %s', 'invoicing' ), json_encode( $payment_data ) ), $invoice );
+        wpinv_record_gateway_error(__('Payment Error', 'invoicing'), sprintf(__('Payment creation failed while processing a bank transfer payment. Payment data: %s', 'invoicing'), json_encode($payment_data)), $invoice);
         // If errors are present, send the user back to the purchase page so they can be corrected
-        wpinv_send_back_to_checkout( '?payment-mode=' . $purchase_data['post_data']['wpi-gateway'] );
+        wpinv_send_back_to_checkout('?payment-mode=' . $purchase_data['post_data']['wpi-gateway']);
     }
 }
-add_action( 'wpinv_gateway_bank_transfer', 'wpinv_process_bank_transfer_payment' );
+add_action('wpinv_gateway_bank_transfer', 'wpinv_process_bank_transfer_payment');
 
-function wpinv_show_bank_info( $invoice ) {
-    if ( !empty( $invoice ) && $invoice->gateway == 'bank_transfer' && $invoice->status == 'wpi-pending' ) {
-        $bank_info = wpinv_get_bank_info( true );
+function wpinv_show_bank_info($invoice) {
+    if (!empty($invoice) && $invoice->gateway == 'bank_transfer' && $invoice->status == 'wpi-pending') {
+        $bank_info = wpinv_get_bank_info(true);
         ?>
         <div class="wpinv-bank-details">
-            <?php if ( $instructions = wpinv_get_bank_instructions() ) { ?>
-            <div class="alert bg-info"><?php echo wpautop( wp_kses_post( $instructions ) ); ?></div>
+            <?php if ($instructions = wpinv_get_bank_instructions()) { ?>
+            <div class="alert bg-info"><?php echo wpautop(wp_kses_post($instructions)); ?></div>
             <?php } ?>
-            <?php if ( !empty( $bank_info ) ) { ?>
-            <h3 class="wpinv-bank-t"><?php echo apply_filters( 'wpinv_receipt_bank_details_title', __( 'Our Bank Details', 'invoicing' ) ); ?></h3>
+            <?php if (!empty($bank_info)) { ?>
+            <h3 class="wpinv-bank-t"><?php echo apply_filters('wpinv_receipt_bank_details_title', __('Our Bank Details', 'invoicing')); ?></h3>
             <table class="table table-bordered table-sm wpi-bank-details">
-                <?php foreach ( $bank_info as $key => $info ) { ?>
-                <tr class="wpi-<?php echo sanitize_html_class( $key );?>"><th class="text-left"><?php echo $info['label'] ;?></th><td><?php echo $info['value'] ;?></td></tr>
+                <?php foreach ($bank_info as $key => $info) { ?>
+                <tr class="wpi-<?php echo sanitize_html_class($key); ?>"><th class="text-left"><?php echo $info['label']; ?></th><td><?php echo $info['value']; ?></td></tr>
                 <?php } ?>
             </table>
             <?php } ?>
@@ -62,15 +62,15 @@ 
         <?php
     }
 }
-add_action( 'wpinv_before_receipt_details', 'wpinv_show_bank_info', 10, 1 );
+add_action('wpinv_before_receipt_details', 'wpinv_show_bank_info', 10, 1);
 
-function wpinv_invoice_print_bank_info( $invoice ) {
-    if ( !empty( $invoice ) && $invoice->gateway == 'bank_transfer' && $invoice->status == 'wpi-pending' ) {
+function wpinv_invoice_print_bank_info($invoice) {
+    if (!empty($invoice) && $invoice->gateway == 'bank_transfer' && $invoice->status == 'wpi-pending') {
         ?>
         <div class="row wpinv-bank-info">
-            <?php echo wpinv_show_bank_info( $invoice ); ?>
+            <?php echo wpinv_show_bank_info($invoice); ?>
         </div>
         <?php
     }
 }
-add_action( 'wpinv_invoice_print_after_top_content', 'wpinv_invoice_print_bank_info', 10, 1 );
\ No newline at end of file
+add_action('wpinv_invoice_print_after_top_content', 'wpinv_invoice_print_bank_info', 10, 1);
\ No newline at end of file

includes/wpinv-discount-functions.php

Spacing +472 added lines, -472 removed lines

@@ -7,90 +7,90 @@ 
  */
  
 // MUST have WordPress.
-if ( !defined( 'WPINC' ) ) {
-    exit( 'Do NOT access this file directly: ' . basename( __FILE__ ) );
+if (!defined('WPINC')) {
+    exit('Do NOT access this file directly: ' . basename(__FILE__));
 }
 
 function wpinv_get_discount_types() {
     $discount_types = array(
-                        'percent'   => __( 'Percentage', 'invoicing' ),
-                        'flat'     => __( 'Flat Amount', 'invoicing' ),
+                        'percent'   => __('Percentage', 'invoicing'),
+                        'flat'     => __('Flat Amount', 'invoicing'),
                     );
-    return (array)apply_filters( 'wpinv_discount_types', $discount_types );
+    return (array)apply_filters('wpinv_discount_types', $discount_types);
 }
 
-function wpinv_get_discount_type_name( $type = '' ) {
+function wpinv_get_discount_type_name($type = '') {
     $types = wpinv_get_discount_types();
-    return isset( $types[ $type ] ) ? $types[ $type ] : '';
+    return isset($types[$type]) ? $types[$type] : '';
 }
 
-function wpinv_delete_discount( $data ) {
-    if ( ! isset( $data['_wpnonce'] ) || ! wp_verify_nonce( $data['_wpnonce'], 'wpinv_discount_nonce' ) ) {
-        wp_die( __( 'Trying to cheat or something?', 'invoicing' ), __( 'Error', 'invoicing' ), array( 'response' => 403 ) );
+function wpinv_delete_discount($data) {
+    if (!isset($data['_wpnonce']) || !wp_verify_nonce($data['_wpnonce'], 'wpinv_discount_nonce')) {
+        wp_die(__('Trying to cheat or something?', 'invoicing'), __('Error', 'invoicing'), array('response' => 403));
     }
 
-    if( ! current_user_can( 'manage_options' ) ) {
-        wp_die( __( 'You do not have permission to delete discount codes', 'invoicing' ), __( 'Error', 'invoicing' ), array( 'response' => 403 ) );
+    if (!current_user_can('manage_options')) {
+        wp_die(__('You do not have permission to delete discount codes', 'invoicing'), __('Error', 'invoicing'), array('response' => 403));
     }
 
     $discount_id = $data['discount'];
-    wpinv_remove_discount( $discount_id );
+    wpinv_remove_discount($discount_id);
 }
-add_action( 'wpinv_delete_discount', 'wpinv_delete_discount' );
+add_action('wpinv_delete_discount', 'wpinv_delete_discount');
 
-function wpinv_activate_discount( $data ) {
-    if ( ! isset( $data['_wpnonce'] ) || ! wp_verify_nonce( $data['_wpnonce'], 'wpinv_discount_nonce' ) ) {
-        wp_die( __( 'Trying to cheat or something?', 'invoicing' ), __( 'Error', 'invoicing' ), array( 'response' => 403 ) );
+function wpinv_activate_discount($data) {
+    if (!isset($data['_wpnonce']) || !wp_verify_nonce($data['_wpnonce'], 'wpinv_discount_nonce')) {
+        wp_die(__('Trying to cheat or something?', 'invoicing'), __('Error', 'invoicing'), array('response' => 403));
     }
 
-    if( ! current_user_can( 'manage_options' ) ) {
-        wp_die( __( 'You do not have permission to edit discount codes', 'invoicing' ), __( 'Error', 'invoicing' ), array( 'response' => 403 ) );
+    if (!current_user_can('manage_options')) {
+        wp_die(__('You do not have permission to edit discount codes', 'invoicing'), __('Error', 'invoicing'), array('response' => 403));
     }
 
-    $id = absint( $data['discount'] );
-    wpinv_update_discount_status( $id, 'publish' );
+    $id = absint($data['discount']);
+    wpinv_update_discount_status($id, 'publish');
 }
-add_action( 'wpinv_activate_discount', 'wpinv_activate_discount' );
+add_action('wpinv_activate_discount', 'wpinv_activate_discount');
 
-function wpinv_deactivate_discount( $data ) {
-    if ( ! isset( $data['_wpnonce'] ) || ! wp_verify_nonce( $data['_wpnonce'], 'wpinv_discount_nonce' ) ) {
-        wp_die( __( 'Trying to cheat or something?', 'invoicing' ), __( 'Error', 'invoicing' ), array( 'response' => 403 ) );
+function wpinv_deactivate_discount($data) {
+    if (!isset($data['_wpnonce']) || !wp_verify_nonce($data['_wpnonce'], 'wpinv_discount_nonce')) {
+        wp_die(__('Trying to cheat or something?', 'invoicing'), __('Error', 'invoicing'), array('response' => 403));
     }
 
-    if( ! current_user_can( 'manage_options' ) ) {
-        wp_die( __( 'You do not have permission to create discount codes', 'invoicing' ), array( 'response' => 403 ) );
+    if (!current_user_can('manage_options')) {
+        wp_die(__('You do not have permission to create discount codes', 'invoicing'), array('response' => 403));
     }
 
-    $id = absint( $data['discount'] );
-    wpinv_update_discount_status( $id, 'pending' );
+    $id = absint($data['discount']);
+    wpinv_update_discount_status($id, 'pending');
 }
-add_action( 'wpinv_deactivate_discount', 'wpinv_deactivate_discount' );
+add_action('wpinv_deactivate_discount', 'wpinv_deactivate_discount');
 
-function wpinv_get_discounts( $args = array() ) {
+function wpinv_get_discounts($args = array()) {
     $defaults = array(
         'post_type'      => 'wpi_discount',
         'posts_per_page' => 20,
         'paged'          => null,
-        'post_status'    => array( 'publish', 'pending', 'draft', 'expired' )
+        'post_status'    => array('publish', 'pending', 'draft', 'expired')
     );
 
-    $args = wp_parse_args( $args, $defaults );
+    $args = wp_parse_args($args, $defaults);
 
-    $discounts = get_posts( $args );
+    $discounts = get_posts($args);
 
-    if ( $discounts ) {
+    if ($discounts) {
         return $discounts;
     }
 
-    if( ! $discounts && ! empty( $args['s'] ) ) {
+    if (!$discounts && !empty($args['s'])) {
         $args['meta_key']     = 'gd_discount_code';
         $args['meta_value']   = $args['s'];
         $args['meta_compare'] = 'LIKE';
-        unset( $args['s'] );
-        $discounts = get_posts( $args );
+        unset($args['s']);
+        $discounts = get_posts($args);
     }
 
-    if( $discounts ) {
+    if ($discounts) {
         return $discounts;
     }
 
@@ -102,9 +102,9 @@ 
 
     $discounts  = wpinv_get_discounts();
 
-    if ( $discounts) {
-        foreach ( $discounts as $discount ) {
-            if ( wpinv_is_discount_active( $discount->ID ) ) {
+    if ($discounts) {
+        foreach ($discounts as $discount) {
+            if (wpinv_is_discount_active($discount->ID)) {
                 $has_active = true;
                 break;
             }
@@ -113,38 +113,38 @@ 
     return $has_active;
 }
 
-function wpinv_get_discount( $discount_id = 0 ) {
-    if( empty( $discount_id ) ) {
+function wpinv_get_discount($discount_id = 0) {
+    if (empty($discount_id)) {
         return false;
     }
     
-    if ( get_post_type( $discount_id ) != 'wpi_discount' ) {
+    if (get_post_type($discount_id) != 'wpi_discount') {
         return false;
     }
 
-    $discount = get_post( $discount_id );
+    $discount = get_post($discount_id);
 
     return $discount;
 }
 
-function wpinv_get_discount_by_code( $code = '' ) {
-    if( empty( $code ) || ! is_string( $code ) ) {
+function wpinv_get_discount_by_code($code = '') {
+    if (empty($code) || !is_string($code)) {
         return false;
     }
 
-    return wpinv_get_discount_by( 'code', $code );
+    return wpinv_get_discount_by('code', $code);
 }
 
-function wpinv_get_discount_by( $field = '', $value = '' ) {
-    if( empty( $field ) || empty( $value ) ) {
+function wpinv_get_discount_by($field = '', $value = '') {
+    if (empty($field) || empty($value)) {
         return false;
     }
 
-    if( ! is_string( $field ) ) {
+    if (!is_string($field)) {
         return false;
     }
 
-    switch( strtolower( $field ) ) {
+    switch (strtolower($field)) {
 
         case 'code':
             $meta_query     = array();
@@ -154,32 +154,32 @@ 
                 'compare' => '='
             );
             
-            $discount = wpinv_get_discounts( array(
+            $discount = wpinv_get_discounts(array(
                 'posts_per_page' => 1,
                 'post_status'    => 'any',
                 'meta_query'     => $meta_query,
-            ) );
+            ));
             
-            if( $discount ) {
+            if ($discount) {
                 $discount = $discount[0];
             }
 
             break;
 
         case 'id':
-            $discount = wpinv_get_discount( $value );
+            $discount = wpinv_get_discount($value);
 
             break;
 
         case 'name':
-            $discount = get_posts( array(
+            $discount = get_posts(array(
                 'post_type'      => 'wpi_discount',
                 'name'           => $value,
                 'posts_per_page' => 1,
                 'post_status'    => 'any'
-            ) );
+            ));
 
-            if( $discount ) {
+            if ($discount) {
                 $discount = $discount[0];
             }
 
@@ -189,99 +189,99 @@ 
             return false;
     }
 
-    if( ! empty( $discount ) ) {
+    if (!empty($discount)) {
         return $discount;
     }
 
     return false;
 }
 
-function wpinv_store_discount( $post_id, $data, $post, $update = false ) {
+function wpinv_store_discount($post_id, $data, $post, $update = false) {
     $meta = array(
-        'code'              => isset( $data['code'] )             ? sanitize_text_field( $data['code'] )              : '',
-        'type'              => isset( $data['type'] )             ? sanitize_text_field( $data['type'] )              : 'percent',
-        'amount'            => isset( $data['amount'] )           ? wpinv_sanitize_amount( $data['amount'] )          : '',
-        'start'             => isset( $data['start'] )            ? sanitize_text_field( $data['start'] )             : '',
-        'expiration'        => isset( $data['expiration'] )       ? sanitize_text_field( $data['expiration'] )        : '',
-        'min_total'         => isset( $data['min_total'] )        ? wpinv_sanitize_amount( $data['min_total'] )       : '',
-        'max_total'         => isset( $data['max_total'] )        ? wpinv_sanitize_amount( $data['max_total'] )       : '',
-        'max_uses'          => isset( $data['max_uses'] )         ? absint( $data['max_uses'] )                       : '',
-        'items'             => isset( $data['items'] )            ? $data['items']                                    : array(),
-        'excluded_items'    => isset( $data['excluded_items'] )   ? $data['excluded_items']                           : array(),
-        'is_recurring'      => isset( $data['recurring'] )        ? (bool)$data['recurring']                          : false,
-        'is_single_use'     => isset( $data['single_use'] )       ? (bool)$data['single_use']                         : false,
-        'uses'              => isset( $data['uses'] )             ? (int)$data['uses']                                : false,
+        'code'              => isset($data['code']) ? sanitize_text_field($data['code']) : '',
+        'type'              => isset($data['type']) ? sanitize_text_field($data['type']) : 'percent',
+        'amount'            => isset($data['amount']) ? wpinv_sanitize_amount($data['amount']) : '',
+        'start'             => isset($data['start']) ? sanitize_text_field($data['start']) : '',
+        'expiration'        => isset($data['expiration']) ? sanitize_text_field($data['expiration']) : '',
+        'min_total'         => isset($data['min_total']) ? wpinv_sanitize_amount($data['min_total']) : '',
+        'max_total'         => isset($data['max_total']) ? wpinv_sanitize_amount($data['max_total']) : '',
+        'max_uses'          => isset($data['max_uses']) ? absint($data['max_uses']) : '',
+        'items'             => isset($data['items']) ? $data['items'] : array(),
+        'excluded_items'    => isset($data['excluded_items']) ? $data['excluded_items'] : array(),
+        'is_recurring'      => isset($data['recurring']) ? (bool)$data['recurring'] : false,
+        'is_single_use'     => isset($data['single_use']) ? (bool)$data['single_use'] : false,
+        'uses'              => isset($data['uses']) ? (int)$data['uses'] : false,
     );
     
-    $start_timestamp        = strtotime( $meta['start'] );
+    $start_timestamp        = strtotime($meta['start']);
 
-    if ( !empty( $meta['start'] ) ) {
-        $meta['start']      = date( 'Y-m-d H:i:s', $start_timestamp );
+    if (!empty($meta['start'])) {
+        $meta['start']      = date('Y-m-d H:i:s', $start_timestamp);
     }
         
-    if ( $meta['type'] == 'percent' && (float)$meta['amount'] > 100 ) {
+    if ($meta['type'] == 'percent' && (float)$meta['amount'] > 100) {
         $meta['amount'] = 100;
     }
 
-    if ( !empty( $meta['expiration'] ) ) {
-        $meta['expiration'] = date( 'Y-m-d H:i:s', strtotime( date( 'Y-m-d', strtotime( $meta['expiration'] ) ) . ' 23:59:59' ) );
-        $end_timestamp      = strtotime( $meta['expiration'] );
+    if (!empty($meta['expiration'])) {
+        $meta['expiration'] = date('Y-m-d H:i:s', strtotime(date('Y-m-d', strtotime($meta['expiration'])) . ' 23:59:59'));
+        $end_timestamp      = strtotime($meta['expiration']);
 
-        if ( !empty( $meta['start'] ) && $start_timestamp > $end_timestamp ) {
+        if (!empty($meta['start']) && $start_timestamp > $end_timestamp) {
             $meta['expiration'] = $meta['start']; // Set the expiration date to the start date if start is later than expiration date.
         }
     }
     
-    if ( $meta['uses'] === false ) {
-        unset( $meta['uses'] );
+    if ($meta['uses'] === false) {
+        unset($meta['uses']);
     }
     
-    if ( ! empty( $meta['items'] ) ) {
-        foreach ( $meta['items'] as $key => $item ) {
-            if ( 0 === intval( $item ) ) {
-                unset( $meta['items'][ $key ] );
+    if (!empty($meta['items'])) {
+        foreach ($meta['items'] as $key => $item) {
+            if (0 === intval($item)) {
+                unset($meta['items'][$key]);
             }
         }
     }
     
-    if ( ! empty( $meta['excluded_items'] ) ) {
-        foreach ( $meta['excluded_items'] as $key => $item ) {
-            if ( 0 === intval( $item ) ) {
-                unset( $meta['excluded_items'][ $key ] );
+    if (!empty($meta['excluded_items'])) {
+        foreach ($meta['excluded_items'] as $key => $item) {
+            if (0 === intval($item)) {
+                unset($meta['excluded_items'][$key]);
             }
         }
     }
     
-    $meta = apply_filters( 'wpinv_update_discount', $meta, $post_id, $post );
+    $meta = apply_filters('wpinv_update_discount', $meta, $post_id, $post);
     
-    do_action( 'wpinv_pre_update_discount', $meta, $post_id, $post );
+    do_action('wpinv_pre_update_discount', $meta, $post_id, $post);
     
-    foreach( $meta as $key => $value ) {
-        update_post_meta( $post_id, '_wpi_discount_' . $key, $value );
+    foreach ($meta as $key => $value) {
+        update_post_meta($post_id, '_wpi_discount_' . $key, $value);
     }
     
-    do_action( 'wpinv_post_update_discount', $meta, $post_id, $post );
+    do_action('wpinv_post_update_discount', $meta, $post_id, $post);
     
     return $post_id;
 }
 
-function wpinv_remove_discount( $discount_id = 0 ) {
-    do_action( 'wpinv_pre_delete_discount', $discount_id );
+function wpinv_remove_discount($discount_id = 0) {
+    do_action('wpinv_pre_delete_discount', $discount_id);
 
-    wp_delete_post( $discount_id, true );
+    wp_delete_post($discount_id, true);
 
-    do_action( 'wpinv_post_delete_discount', $discount_id );
+    do_action('wpinv_post_delete_discount', $discount_id);
 }
 
-function wpinv_update_discount_status( $code_id = 0, $new_status = 'publish' ) {
-    $discount = wpinv_get_discount(  $code_id );
+function wpinv_update_discount_status($code_id = 0, $new_status = 'publish') {
+    $discount = wpinv_get_discount($code_id);
 
-    if ( $discount ) {
-        do_action( 'wpinv_pre_update_discount_status', $code_id, $new_status, $discount->post_status );
+    if ($discount) {
+        do_action('wpinv_pre_update_discount_status', $code_id, $new_status, $discount->post_status);
 
-        wp_update_post( array( 'ID' => $code_id, 'post_status' => $new_status ) );
+        wp_update_post(array('ID' => $code_id, 'post_status' => $new_status));
 
-        do_action( 'wpinv_post_update_discount_status', $code_id, $new_status, $discount->post_status );
+        do_action('wpinv_post_update_discount_status', $code_id, $new_status, $discount->post_status);
 
         return true;
     }
@@ -289,173 +289,173 @@ 
     return false;
 }
 
-function wpinv_discount_exists( $code_id ) {
-    if ( wpinv_get_discount(  $code_id ) ) {
+function wpinv_discount_exists($code_id) {
+    if (wpinv_get_discount($code_id)) {
         return true;
     }
 
     return false;
 }
 
-function wpinv_is_discount_active( $code_id = null ) {
-    $discount = wpinv_get_discount(  $code_id );
+function wpinv_is_discount_active($code_id = null) {
+    $discount = wpinv_get_discount($code_id);
     $return   = false;
 
-    if ( $discount ) {
-        if ( wpinv_is_discount_expired( $code_id ) ) {
-            if( defined( 'DOING_AJAX' ) ) {
-                wpinv_set_error( 'wpinv-discount-error', __( 'This discount is expired.', 'invoicing' ) );
+    if ($discount) {
+        if (wpinv_is_discount_expired($code_id)) {
+            if (defined('DOING_AJAX')) {
+                wpinv_set_error('wpinv-discount-error', __('This discount is expired.', 'invoicing'));
             }
-        } elseif ( $discount->post_status == 'publish' ) {
+        } elseif ($discount->post_status == 'publish') {
             $return = true;
         } else {
-            if( defined( 'DOING_AJAX' ) ) {
-                wpinv_set_error( 'wpinv-discount-error', __( 'This discount is not active.', 'invoicing' ) );
+            if (defined('DOING_AJAX')) {
+                wpinv_set_error('wpinv-discount-error', __('This discount is not active.', 'invoicing'));
             }
         }
     }
 
-    return apply_filters( 'wpinv_is_discount_active', $return, $code_id );
+    return apply_filters('wpinv_is_discount_active', $return, $code_id);
 }
 
-function wpinv_get_discount_code( $code_id = null ) {
-    $code = get_post_meta( $code_id, '_wpi_discount_code', true );
+function wpinv_get_discount_code($code_id = null) {
+    $code = get_post_meta($code_id, '_wpi_discount_code', true);
 
-    return apply_filters( 'wpinv_get_discount_code', $code, $code_id );
+    return apply_filters('wpinv_get_discount_code', $code, $code_id);
 }
 
-function wpinv_get_discount_start_date( $code_id = null ) {
-    $start_date = get_post_meta( $code_id, '_wpi_discount_start', true );
+function wpinv_get_discount_start_date($code_id = null) {
+    $start_date = get_post_meta($code_id, '_wpi_discount_start', true);
 
-    return apply_filters( 'wpinv_get_discount_start_date', $start_date, $code_id );
+    return apply_filters('wpinv_get_discount_start_date', $start_date, $code_id);
 }
 
-function wpinv_get_discount_expiration( $code_id = null ) {
-    $expiration = get_post_meta( $code_id, '_wpi_discount_expiration', true );
+function wpinv_get_discount_expiration($code_id = null) {
+    $expiration = get_post_meta($code_id, '_wpi_discount_expiration', true);
 
-    return apply_filters( 'wpinv_get_discount_expiration', $expiration, $code_id );
+    return apply_filters('wpinv_get_discount_expiration', $expiration, $code_id);
 }
 
-function wpinv_get_discount_max_uses( $code_id = null ) {
-    $max_uses = get_post_meta( $code_id, '_wpi_discount_max_uses', true );
+function wpinv_get_discount_max_uses($code_id = null) {
+    $max_uses = get_post_meta($code_id, '_wpi_discount_max_uses', true);
 
-    return (int) apply_filters( 'wpinv_get_discount_max_uses', $max_uses, $code_id );
+    return (int)apply_filters('wpinv_get_discount_max_uses', $max_uses, $code_id);
 }
 
-function wpinv_get_discount_uses( $code_id = null ) {
-    $uses = get_post_meta( $code_id, '_wpi_discount_uses', true );
+function wpinv_get_discount_uses($code_id = null) {
+    $uses = get_post_meta($code_id, '_wpi_discount_uses', true);
 
-    return (int) apply_filters( 'wpinv_get_discount_uses', $uses, $code_id );
+    return (int)apply_filters('wpinv_get_discount_uses', $uses, $code_id);
 }
 
-function wpinv_get_discount_min_total( $code_id = null ) {
-    $min_total = get_post_meta( $code_id, '_wpi_discount_min_total', true );
+function wpinv_get_discount_min_total($code_id = null) {
+    $min_total = get_post_meta($code_id, '_wpi_discount_min_total', true);
 
-    return (float) apply_filters( 'wpinv_get_discount_min_total', $min_total, $code_id );
+    return (float)apply_filters('wpinv_get_discount_min_total', $min_total, $code_id);
 }
 
-function wpinv_get_discount_max_total( $code_id = null ) {
-    $max_total = get_post_meta( $code_id, '_wpi_discount_max_total', true );
+function wpinv_get_discount_max_total($code_id = null) {
+    $max_total = get_post_meta($code_id, '_wpi_discount_max_total', true);
 
-    return (float) apply_filters( 'wpinv_get_discount_max_total', $max_total, $code_id );
+    return (float)apply_filters('wpinv_get_discount_max_total', $max_total, $code_id);
 }
 
-function wpinv_get_discount_amount( $code_id = null ) {
-    $amount = get_post_meta( $code_id, '_wpi_discount_amount', true );
+function wpinv_get_discount_amount($code_id = null) {
+    $amount = get_post_meta($code_id, '_wpi_discount_amount', true);
 
-    return (float) apply_filters( 'wpinv_get_discount_amount', $amount, $code_id );
+    return (float)apply_filters('wpinv_get_discount_amount', $amount, $code_id);
 }
 
-function wpinv_get_discount_type( $code_id = null, $name = false ) {
-    $type = strtolower( get_post_meta( $code_id, '_wpi_discount_type', true ) );
+function wpinv_get_discount_type($code_id = null, $name = false) {
+    $type = strtolower(get_post_meta($code_id, '_wpi_discount_type', true));
     
-    if ( $name ) {
-        $name = wpinv_get_discount_type_name( $type );
+    if ($name) {
+        $name = wpinv_get_discount_type_name($type);
         
-        return apply_filters( 'wpinv_get_discount_type_name', $name, $code_id );
+        return apply_filters('wpinv_get_discount_type_name', $name, $code_id);
     }
 
-    return apply_filters( 'wpinv_get_discount_type', $type, $code_id );
+    return apply_filters('wpinv_get_discount_type', $type, $code_id);
 }
 
-function wpinv_discount_status( $status ) {
-    switch( $status ){
+function wpinv_discount_status($status) {
+    switch ($status) {
         case 'expired' :
-            $name = __( 'Expired', 'invoicing' );
+            $name = __('Expired', 'invoicing');
             break;
         case 'publish' :
         case 'active' :
-            $name = __( 'Active', 'invoicing' );
+            $name = __('Active', 'invoicing');
             break;
         default :
-            $name = __( 'Inactive', 'invoicing' );
+            $name = __('Inactive', 'invoicing');
             break;
     }
     return $name;
 }
 
-function wpinv_get_discount_excluded_items( $code_id = null ) {
-    $excluded_items = get_post_meta( $code_id, '_wpi_discount_excluded_items', true );
+function wpinv_get_discount_excluded_items($code_id = null) {
+    $excluded_items = get_post_meta($code_id, '_wpi_discount_excluded_items', true);
 
-    if ( empty( $excluded_items ) || ! is_array( $excluded_items ) ) {
+    if (empty($excluded_items) || !is_array($excluded_items)) {
         $excluded_items = array();
     }
 
-    return (array) apply_filters( 'wpinv_get_discount_excluded_items', $excluded_items, $code_id );
+    return (array)apply_filters('wpinv_get_discount_excluded_items', $excluded_items, $code_id);
 }
 
-function wpinv_get_discount_item_reqs( $code_id = null ) {
-    $item_reqs = get_post_meta( $code_id, '_wpi_discount_items', true );
+function wpinv_get_discount_item_reqs($code_id = null) {
+    $item_reqs = get_post_meta($code_id, '_wpi_discount_items', true);
 
-    if ( empty( $item_reqs ) || ! is_array( $item_reqs ) ) {
+    if (empty($item_reqs) || !is_array($item_reqs)) {
         $item_reqs = array();
     }
 
-    return (array) apply_filters( 'wpinv_get_discount_item_reqs', $item_reqs, $code_id );
+    return (array)apply_filters('wpinv_get_discount_item_reqs', $item_reqs, $code_id);
 }
 
-function wpinv_get_discount_item_condition( $code_id = 0 ) {
-    return get_post_meta( $code_id, '_wpi_discount_item_condition', true );
+function wpinv_get_discount_item_condition($code_id = 0) {
+    return get_post_meta($code_id, '_wpi_discount_item_condition', true);
 }
 
-function wpinv_is_discount_not_global( $code_id = 0 ) {
-    return (bool) get_post_meta( $code_id, '_wpi_discount_is_not_global', true );
+function wpinv_is_discount_not_global($code_id = 0) {
+    return (bool)get_post_meta($code_id, '_wpi_discount_is_not_global', true);
 }
 
-function wpinv_is_discount_expired( $code_id = null ) {
-    $discount = wpinv_get_discount(  $code_id );
+function wpinv_is_discount_expired($code_id = null) {
+    $discount = wpinv_get_discount($code_id);
     $return   = false;
 
-    if ( $discount ) {
-        $expiration = wpinv_get_discount_expiration( $code_id );
-        if ( $expiration ) {
-            $expiration = strtotime( $expiration );
-            if ( $expiration < current_time( 'timestamp' ) ) {
+    if ($discount) {
+        $expiration = wpinv_get_discount_expiration($code_id);
+        if ($expiration) {
+            $expiration = strtotime($expiration);
+            if ($expiration < current_time('timestamp')) {
                 // Discount is expired
-                wpinv_update_discount_status( $code_id, 'pending' );
+                wpinv_update_discount_status($code_id, 'pending');
                 $return = true;
             }
         }
     }
 
-    return apply_filters( 'wpinv_is_discount_expired', $return, $code_id );
+    return apply_filters('wpinv_is_discount_expired', $return, $code_id);
 }
 
-function wpinv_is_discount_started( $code_id = null ) {
-    $discount = wpinv_get_discount(  $code_id );
+function wpinv_is_discount_started($code_id = null) {
+    $discount = wpinv_get_discount($code_id);
     $return   = false;
 
-    if ( $discount ) {
-        $start_date = wpinv_get_discount_start_date( $code_id );
+    if ($discount) {
+        $start_date = wpinv_get_discount_start_date($code_id);
 
-        if ( $start_date ) {
-            $start_date = strtotime( $start_date );
+        if ($start_date) {
+            $start_date = strtotime($start_date);
 
-            if ( $start_date < current_time( 'timestamp' ) ) {
+            if ($start_date < current_time('timestamp')) {
                 // Discount has past the start date
                 $return = true;
             } else {
-                wpinv_set_error( 'wpinv-discount-error', __( 'This discount is not active yet.', 'invoicing' ) );
+                wpinv_set_error('wpinv-discount-error', __('This discount is not active yet.', 'invoicing'));
             }
         } else {
             // No start date for this discount, so has to be true
@@ -463,159 +463,159 @@ 
         }
     }
 
-    return apply_filters( 'wpinv_is_discount_started', $return, $code_id );
+    return apply_filters('wpinv_is_discount_started', $return, $code_id);
 }
 
-function wpinv_check_discount_dates( $code_id = null ) {
-    $discount = wpinv_get_discount(  $code_id );
+function wpinv_check_discount_dates($code_id = null) {
+    $discount = wpinv_get_discount($code_id);
     $return   = false;
 
-    if ( $discount ) {
-        $start_date = wpinv_get_discount_start_date( $code_id );
+    if ($discount) {
+        $start_date = wpinv_get_discount_start_date($code_id);
 
-        if ( $start_date ) {
-            $start_date = strtotime( $start_date );
+        if ($start_date) {
+            $start_date = strtotime($start_date);
 
-            if ( $start_date < current_time( 'timestamp' ) ) {
+            if ($start_date < current_time('timestamp')) {
                 // Discount has past the start date
                 $return = true;
             } else {
-                wpinv_set_error( 'wpinv-discount-error', __( 'This discount is not active yet.', 'invoicing' ) );
+                wpinv_set_error('wpinv-discount-error', __('This discount is not active yet.', 'invoicing'));
             }
         } else {
             // No start date for this discount, so has to be true
             $return = true;
         }
         
-        if ( $return ) {
-            $expiration = wpinv_get_discount_expiration( $code_id );
+        if ($return) {
+            $expiration = wpinv_get_discount_expiration($code_id);
             
-            if ( $expiration ) {
-                $expiration = strtotime( $expiration );
-                if ( $expiration < current_time( 'timestamp' ) ) {
+            if ($expiration) {
+                $expiration = strtotime($expiration);
+                if ($expiration < current_time('timestamp')) {
                     // Discount is expired
-                    wpinv_update_discount_status( $code_id, 'pending' );
+                    wpinv_update_discount_status($code_id, 'pending');
                     $return = true;
                 }
             }
         }
     }
     
-    return apply_filters( 'wpinv_check_discount_dates', $return, $code_id );
+    return apply_filters('wpinv_check_discount_dates', $return, $code_id);
 }
 
-function wpinv_is_discount_maxed_out( $code_id = null ) {
-    $discount = wpinv_get_discount(  $code_id );
+function wpinv_is_discount_maxed_out($code_id = null) {
+    $discount = wpinv_get_discount($code_id);
     $return   = false;
 
-    if ( $discount ) {
-        $uses = wpinv_get_discount_uses( $code_id );
+    if ($discount) {
+        $uses = wpinv_get_discount_uses($code_id);
         // Large number that will never be reached
-        $max_uses = wpinv_get_discount_max_uses( $code_id );
+        $max_uses = wpinv_get_discount_max_uses($code_id);
         // Should never be greater than, but just in case
-        if ( $uses >= $max_uses && ! empty( $max_uses ) ) {
+        if ($uses >= $max_uses && !empty($max_uses)) {
             // Discount is maxed out
-            wpinv_set_error( 'wpinv-discount-error', __( 'This discount has reached its maximum usage.', 'invoicing' ) );
+            wpinv_set_error('wpinv-discount-error', __('This discount has reached its maximum usage.', 'invoicing'));
             $return = true;
         }
     }
 
-    return apply_filters( 'wpinv_is_discount_maxed_out', $return, $code_id );
+    return apply_filters('wpinv_is_discount_maxed_out', $return, $code_id);
 }
 
-function wpinv_discount_is_min_met( $code_id = null ) {
-    $discount = wpinv_get_discount( $code_id );
+function wpinv_discount_is_min_met($code_id = null) {
+    $discount = wpinv_get_discount($code_id);
     $return   = false;
 
-    if ( $discount ) {
-        $min         = (float)wpinv_get_discount_min_total( $code_id );
-        $cart_amount = (float)wpinv_get_cart_discountable_subtotal( $code_id );
+    if ($discount) {
+        $min         = (float)wpinv_get_discount_min_total($code_id);
+        $cart_amount = (float)wpinv_get_cart_discountable_subtotal($code_id);
 
-        if ( !$min > 0 || $cart_amount >= $min ) {
+        if (!$min > 0 || $cart_amount >= $min) {
             // Minimum has been met
             $return = true;
         } else {
-            wpinv_set_error( 'wpinv-discount-error', sprintf( __( 'Minimum invoice of %s not met.', 'invoicing' ), wpinv_price( wpinv_format_amount( $min ) ) ) );
+            wpinv_set_error('wpinv-discount-error', sprintf(__('Minimum invoice of %s not met.', 'invoicing'), wpinv_price(wpinv_format_amount($min))));
         }
     }
 
-    return apply_filters( 'wpinv_is_discount_min_met', $return, $code_id );
+    return apply_filters('wpinv_is_discount_min_met', $return, $code_id);
 }
 
-function wpinv_discount_is_max_met( $code_id = null ) {
-    $discount = wpinv_get_discount( $code_id );
+function wpinv_discount_is_max_met($code_id = null) {
+    $discount = wpinv_get_discount($code_id);
     $return   = false;
 
-    if ( $discount ) {
-        $max         = (float)wpinv_get_discount_max_total( $code_id );
-        $cart_amount = (float)wpinv_get_cart_discountable_subtotal( $code_id );
+    if ($discount) {
+        $max         = (float)wpinv_get_discount_max_total($code_id);
+        $cart_amount = (float)wpinv_get_cart_discountable_subtotal($code_id);
 
-        if ( !$max > 0 || $cart_amount <= $max ) {
+        if (!$max > 0 || $cart_amount <= $max) {
             // Minimum has been met
             $return = true;
         } else {
-            wpinv_set_error( 'wpinv-discount-error', sprintf( __( 'Maximum invoice of %s not met.', 'invoicing' ), wpinv_price( wpinv_format_amount( $max ) ) ) );
+            wpinv_set_error('wpinv-discount-error', sprintf(__('Maximum invoice of %s not met.', 'invoicing'), wpinv_price(wpinv_format_amount($max))));
         }
     }
 
-    return apply_filters( 'wpinv_is_discount_max_met', $return, $code_id );
+    return apply_filters('wpinv_is_discount_max_met', $return, $code_id);
 }
 
-function wpinv_discount_is_single_use( $code_id = 0 ) {
-    $single_use = get_post_meta( $code_id, '_wpi_discount_is_single_use', true );
-    return (bool) apply_filters( 'wpinv_is_discount_single_use', $single_use, $code_id );
+function wpinv_discount_is_single_use($code_id = 0) {
+    $single_use = get_post_meta($code_id, '_wpi_discount_is_single_use', true);
+    return (bool)apply_filters('wpinv_is_discount_single_use', $single_use, $code_id);
 }
 
-function wpinv_discount_is_recurring( $code_id = 0, $code = false ) {
-    if ( $code ) {
-        $discount = wpinv_get_discount_by_code( $code_id );
+function wpinv_discount_is_recurring($code_id = 0, $code = false) {
+    if ($code) {
+        $discount = wpinv_get_discount_by_code($code_id);
         
-        if ( !empty( $discount ) ) {
+        if (!empty($discount)) {
             $code_id = $discount->ID;
         }
     }
     
-    $recurring = get_post_meta( $code_id, '_wpi_discount_is_recurring', true );
+    $recurring = get_post_meta($code_id, '_wpi_discount_is_recurring', true);
     
-    return (bool) apply_filters( 'wpinv_is_discount_recurring', $recurring, $code_id, $code );
+    return (bool)apply_filters('wpinv_is_discount_recurring', $recurring, $code_id, $code);
 }
 
-function wpinv_discount_item_reqs_met( $code_id = null ) {
-    $item_reqs    = wpinv_get_discount_item_reqs( $code_id );
-    $condition    = wpinv_get_discount_item_condition( $code_id );
-    $excluded_ps  = wpinv_get_discount_excluded_items( $code_id );
+function wpinv_discount_item_reqs_met($code_id = null) {
+    $item_reqs    = wpinv_get_discount_item_reqs($code_id);
+    $condition    = wpinv_get_discount_item_condition($code_id);
+    $excluded_ps  = wpinv_get_discount_excluded_items($code_id);
     $cart_items   = wpinv_get_cart_contents();
-    $cart_ids     = $cart_items ? wp_list_pluck( $cart_items, 'id' ) : null;
+    $cart_ids     = $cart_items ? wp_list_pluck($cart_items, 'id') : null;
     $ret          = false;
 
-    if ( empty( $item_reqs ) && empty( $excluded_ps ) ) {
+    if (empty($item_reqs) && empty($excluded_ps)) {
         $ret = true;
     }
 
     // Normalize our data for item requirements, exclusions and cart data
     // First absint the items, then sort, and reset the array keys
-    $item_reqs = array_map( 'absint', $item_reqs );
-    asort( $item_reqs );
-    $item_reqs = array_values( $item_reqs );
+    $item_reqs = array_map('absint', $item_reqs);
+    asort($item_reqs);
+    $item_reqs = array_values($item_reqs);
 
-    $excluded_ps  = array_map( 'absint', $excluded_ps );
-    asort( $excluded_ps );
-    $excluded_ps  = array_values( $excluded_ps );
+    $excluded_ps  = array_map('absint', $excluded_ps);
+    asort($excluded_ps);
+    $excluded_ps  = array_values($excluded_ps);
 
-    $cart_ids     = array_map( 'absint', $cart_ids );
-    asort( $cart_ids );
-    $cart_ids     = array_values( $cart_ids );
+    $cart_ids     = array_map('absint', $cart_ids);
+    asort($cart_ids);
+    $cart_ids     = array_values($cart_ids);
 
     // Ensure we have requirements before proceeding
-    if ( !$ret && ! empty( $item_reqs ) ) {
-        switch( $condition ) {
+    if (!$ret && !empty($item_reqs)) {
+        switch ($condition) {
             case 'all' :
                 // Default back to true
                 $ret = true;
 
-                foreach ( $item_reqs as $item_id ) {
-                    if ( !wpinv_item_in_cart( $item_id ) ) {
-                        wpinv_set_error( 'wpinv-discount-error', __( 'The item requirements for this discount are not met.', 'invoicing' ) );
+                foreach ($item_reqs as $item_id) {
+                    if (!wpinv_item_in_cart($item_id)) {
+                        wpinv_set_error('wpinv-discount-error', __('The item requirements for this discount are not met.', 'invoicing'));
                         $ret = false;
                         break;
                     }
@@ -624,15 +624,15 @@ 
                 break;
 
             default : // Any
-                foreach ( $item_reqs as $item_id ) {
-                    if ( wpinv_item_in_cart( $item_id ) ) {
+                foreach ($item_reqs as $item_id) {
+                    if (wpinv_item_in_cart($item_id)) {
                         $ret = true;
                         break;
                     }
                 }
 
-                if( ! $ret ) {
-                    wpinv_set_error( 'wpinv-discount-error', __( 'The item requirements for this discount are not met.', 'invoicing' ) );
+                if (!$ret) {
+                    wpinv_set_error('wpinv-discount-error', __('The item requirements for this discount are not met.', 'invoicing'));
                 }
 
                 break;
@@ -641,70 +641,70 @@ 
         $ret = true;
     }
 
-    if( ! empty( $excluded_ps ) ) {
+    if (!empty($excluded_ps)) {
         // Check that there are items other than excluded ones in the cart
-        if( $cart_ids == $excluded_ps ) {
-            wpinv_set_error( 'wpinv-discount-error', __( 'This discount is not valid for the cart contents.', 'invoicing' ) );
+        if ($cart_ids == $excluded_ps) {
+            wpinv_set_error('wpinv-discount-error', __('This discount is not valid for the cart contents.', 'invoicing'));
             $ret = false;
         }
     }
 
-    return (bool) apply_filters( 'wpinv_is_discount_item_req_met', $ret, $code_id, $condition );
+    return (bool)apply_filters('wpinv_is_discount_item_req_met', $ret, $code_id, $condition);
 }
 
-function wpinv_is_discount_used( $code = null, $user = '', $code_id = 0 ) {
+function wpinv_is_discount_used($code = null, $user = '', $code_id = 0) {
     global $wpi_checkout_id;
     
     $return = false;
 
-    if ( empty( $code_id ) ) {
-        $code_id = wpinv_get_discount_id_by_code( $code );
+    if (empty($code_id)) {
+        $code_id = wpinv_get_discount_id_by_code($code);
         
-        if( empty( $code_id ) ) {
+        if (empty($code_id)) {
             return false; // No discount was found
         }
     }
 
-    if ( wpinv_discount_is_single_use( $code_id ) ) {
+    if (wpinv_discount_is_single_use($code_id)) {
         $payments = array();
 
         $user_id = 0;
-        if ( is_int( $user ) ) {
-            $user_id = absint( $user );
-        } else if ( is_email( $user ) && $user_data = get_user_by( 'email', $user ) ) {
+        if (is_int($user)) {
+            $user_id = absint($user);
+        } else if (is_email($user) && $user_data = get_user_by('email', $user)) {
             $user_id = $user_data->ID;
-        } else if ( $user_data = get_user_by( 'login', $user ) ) {
+        } else if ($user_data = get_user_by('login', $user)) {
             $user_id = $user_data->ID;
-        } else if ( absint( $user ) > 0 ) {
-            $user_id = absint( $user );
+        } else if (absint($user) > 0) {
+            $user_id = absint($user);
         }
 
-        if ( !empty( $user_id ) ) {
-            $query    = array( 'user' => $user_id, 'limit' => false );
-            $payments = wpinv_get_invoices( $query ); // Get all payments with matching user id
+        if (!empty($user_id)) {
+            $query    = array('user' => $user_id, 'limit' => false);
+            $payments = wpinv_get_invoices($query); // Get all payments with matching user id
         }
 
-        if ( $payments ) {
-            foreach ( $payments as $payment ) {
+        if ($payments) {
+            foreach ($payments as $payment) {
                 // Don't count discount used for current invoice chekcout.
-                if ( !empty( $wpi_checkout_id ) && $wpi_checkout_id == $payment->ID ) {
+                if (!empty($wpi_checkout_id) && $wpi_checkout_id == $payment->ID) {
                     continue;
                 }
                 
-                if ( $payment->has_status( array( 'wpi-cancelled', 'wpi-failed' ) ) ) {
+                if ($payment->has_status(array('wpi-cancelled', 'wpi-failed'))) {
                     continue;
                 }
 
-                $discounts = $payment->get_discounts( true );
-                if ( empty( $discounts ) ) {
+                $discounts = $payment->get_discounts(true);
+                if (empty($discounts)) {
                     continue;
                 }
 
-                $discounts = $discounts && !is_array( $discounts ) ? explode( ',', $discounts ) : $discounts;
+                $discounts = $discounts && !is_array($discounts) ? explode(',', $discounts) : $discounts;
 
-                if ( !empty( $discounts ) && is_array( $discounts ) ) {
-                    if ( in_array( strtolower( $code ), array_map( 'strtolower', $discounts ) ) ) {
-                        wpinv_set_error( 'wpinv-discount-error', __( 'This discount has already been redeemed.', 'invoicing' ) );
+                if (!empty($discounts) && is_array($discounts)) {
+                    if (in_array(strtolower($code), array_map('strtolower', $discounts))) {
+                        wpinv_set_error('wpinv-discount-error', __('This discount has already been redeemed.', 'invoicing'));
                         $return = true;
                         break;
                     }
@@ -713,61 +713,61 @@ 
         }
     }
 
-    return apply_filters( 'wpinv_is_discount_used', $return, $code, $user );
+    return apply_filters('wpinv_is_discount_used', $return, $code, $user);
 }
 
-function wpinv_is_discount_valid( $code = '', $user = '', $set_error = true ) {
+function wpinv_is_discount_valid($code = '', $user = '', $set_error = true) {
     $return      = false;
-    $discount_id = wpinv_get_discount_id_by_code( $code );
-    $user        = trim( $user );
+    $discount_id = wpinv_get_discount_id_by_code($code);
+    $user        = trim($user);
 
-    if ( wpinv_get_cart_contents() ) {
-        if ( $discount_id ) {
+    if (wpinv_get_cart_contents()) {
+        if ($discount_id) {
             if (
-                wpinv_is_discount_active( $discount_id ) &&
-                wpinv_check_discount_dates( $discount_id ) &&
-                !wpinv_is_discount_maxed_out( $discount_id ) &&
-                !wpinv_is_discount_used( $code, $user, $discount_id ) &&
-                wpinv_discount_is_min_met( $discount_id ) &&
-                wpinv_discount_is_max_met( $discount_id ) &&
-                wpinv_discount_item_reqs_met( $discount_id )
+                wpinv_is_discount_active($discount_id) &&
+                wpinv_check_discount_dates($discount_id) &&
+                !wpinv_is_discount_maxed_out($discount_id) &&
+                !wpinv_is_discount_used($code, $user, $discount_id) &&
+                wpinv_discount_is_min_met($discount_id) &&
+                wpinv_discount_is_max_met($discount_id) &&
+                wpinv_discount_item_reqs_met($discount_id)
             ) {
                 $return = true;
             }
-        } elseif( $set_error ) {
-            wpinv_set_error( 'wpinv-discount-error', __( 'This discount is invalid.', 'invoicing' ) );
+        } elseif ($set_error) {
+            wpinv_set_error('wpinv-discount-error', __('This discount is invalid.', 'invoicing'));
         }
     }
 
-    return apply_filters( 'wpinv_is_discount_valid', $return, $discount_id, $code, $user );
+    return apply_filters('wpinv_is_discount_valid', $return, $discount_id, $code, $user);
 }
 
-function wpinv_get_discount_id_by_code( $code ) {
-    $discount = wpinv_get_discount_by_code( $code );
-    if( $discount ) {
+function wpinv_get_discount_id_by_code($code) {
+    $discount = wpinv_get_discount_by_code($code);
+    if ($discount) {
         return $discount->ID;
     }
     return false;
 }
 
-function wpinv_get_discounted_amount( $code, $base_price ) {
+function wpinv_get_discounted_amount($code, $base_price) {
     $amount      = $base_price;
-    $discount_id = wpinv_get_discount_id_by_code( $code );
+    $discount_id = wpinv_get_discount_id_by_code($code);
 
-    if( $discount_id ) {
-        $type        = wpinv_get_discount_type( $discount_id );
-        $rate        = wpinv_get_discount_amount( $discount_id );
+    if ($discount_id) {
+        $type        = wpinv_get_discount_type($discount_id);
+        $rate        = wpinv_get_discount_amount($discount_id);
 
-        if ( $type == 'flat' ) {
+        if ($type == 'flat') {
             // Set amount
             $amount = $base_price - $rate;
-            if ( $amount < 0 ) {
+            if ($amount < 0) {
                 $amount = 0;
             }
 
         } else {
             // Percentage discount
-            $amount = $base_price - ( $base_price * ( $rate / 100 ) );
+            $amount = $base_price - ($base_price * ($rate / 100));
         }
 
     } else {
@@ -776,108 +776,108 @@ 
 
     }
 
-    return apply_filters( 'wpinv_discounted_amount', $amount );
+    return apply_filters('wpinv_discounted_amount', $amount);
 }
 
-function wpinv_increase_discount_usage( $code ) {
+function wpinv_increase_discount_usage($code) {
 
-    $id   = wpinv_get_discount_id_by_code( $code );
-    $uses = wpinv_get_discount_uses( $id );
+    $id   = wpinv_get_discount_id_by_code($code);
+    $uses = wpinv_get_discount_uses($id);
 
-    if ( $uses ) {
+    if ($uses) {
         $uses++;
     } else {
         $uses = 1;
     }
 
-    update_post_meta( $id, '_wpi_discount_uses', $uses );
+    update_post_meta($id, '_wpi_discount_uses', $uses);
 
-    do_action( 'wpinv_discount_increase_use_count', $uses, $id, $code );
+    do_action('wpinv_discount_increase_use_count', $uses, $id, $code);
 
     return $uses;
 
 }
 
-function wpinv_decrease_discount_usage( $code ) {
+function wpinv_decrease_discount_usage($code) {
 
-    $id   = wpinv_get_discount_id_by_code( $code );
-    $uses = wpinv_get_discount_uses( $id );
+    $id   = wpinv_get_discount_id_by_code($code);
+    $uses = wpinv_get_discount_uses($id);
 
-    if ( $uses ) {
+    if ($uses) {
         $uses--;
     }
 
-    if ( $uses < 0 ) {
+    if ($uses < 0) {
         $uses = 0;
     }
 
-    update_post_meta( $id, '_wpi_discount_uses', $uses );
+    update_post_meta($id, '_wpi_discount_uses', $uses);
 
-    do_action( 'wpinv_discount_decrease_use_count', $uses, $id, $code );
+    do_action('wpinv_discount_decrease_use_count', $uses, $id, $code);
 
     return $uses;
 
 }
 
-function wpinv_format_discount_rate( $type, $amount ) {
-    if ( $type == 'flat' ) {
-        return wpinv_price( wpinv_format_amount( $amount ) );
+function wpinv_format_discount_rate($type, $amount) {
+    if ($type == 'flat') {
+        return wpinv_price(wpinv_format_amount($amount));
     } else {
         return $amount . '%';
     }
 }
 
-function wpinv_set_cart_discount( $code = '' ) {    
-    if ( wpinv_multiple_discounts_allowed() ) {
+function wpinv_set_cart_discount($code = '') {    
+    if (wpinv_multiple_discounts_allowed()) {
         // Get all active cart discounts
         $discounts = wpinv_get_cart_discounts();
     } else {
         $discounts = false; // Only one discount allowed per purchase, so override any existing
     }
 
-    if ( $discounts ) {
-        $key = array_search( strtolower( $code ), array_map( 'strtolower', $discounts ) );
-        if( false !== $key ) {
-            unset( $discounts[ $key ] ); // Can't set the same discount more than once
+    if ($discounts) {
+        $key = array_search(strtolower($code), array_map('strtolower', $discounts));
+        if (false !== $key) {
+            unset($discounts[$key]); // Can't set the same discount more than once
         }
         $discounts[] = $code;
     } else {
         $discounts = array();
         $discounts[] = $code;
     }
-    $discounts = array_values( $discounts );
+    $discounts = array_values($discounts);
     
     $data = wpinv_get_checkout_session();
-    if ( empty( $data ) ) {
+    if (empty($data)) {
         $data = array();
     } else {
-        if ( !empty( $data['invoice_id'] ) && $payment_meta = wpinv_get_invoice_meta( $data['invoice_id'] ) ) {
-            $payment_meta['user_info']['discount']  = implode( ',', $discounts );
-            update_post_meta( $data['invoice_id'], '_wpinv_payment_meta', $payment_meta );
+        if (!empty($data['invoice_id']) && $payment_meta = wpinv_get_invoice_meta($data['invoice_id'])) {
+            $payment_meta['user_info']['discount'] = implode(',', $discounts);
+            update_post_meta($data['invoice_id'], '_wpinv_payment_meta', $payment_meta);
         }
     }
     $data['cart_discounts'] = $discounts;
     
-    wpinv_set_checkout_session( $data );
+    wpinv_set_checkout_session($data);
     
     return $discounts;
 }
 
-function wpinv_unset_cart_discount( $code = '' ) {    
+function wpinv_unset_cart_discount($code = '') {    
     $discounts = wpinv_get_cart_discounts();
 
-    if ( $code && !empty( $discounts ) && in_array( $code, $discounts ) ) {
-        $key = array_search( $code, $discounts );
-        unset( $discounts[ $key ] );
+    if ($code && !empty($discounts) && in_array($code, $discounts)) {
+        $key = array_search($code, $discounts);
+        unset($discounts[$key]);
             
         $data = wpinv_get_checkout_session();
         $data['cart_discounts'] = $discounts;
-        if ( !empty( $data['invoice_id'] ) && $payment_meta = wpinv_get_invoice_meta( $data['invoice_id'] ) ) {
-            $payment_meta['user_info']['discount']  = !empty( $discounts ) ? implode( ',', $discounts ) : '';
-            update_post_meta( $data['invoice_id'], '_wpinv_payment_meta', $payment_meta );
+        if (!empty($data['invoice_id']) && $payment_meta = wpinv_get_invoice_meta($data['invoice_id'])) {
+            $payment_meta['user_info']['discount'] = !empty($discounts) ? implode(',', $discounts) : '';
+            update_post_meta($data['invoice_id'], '_wpinv_payment_meta', $payment_meta);
         }
         
-        wpinv_set_checkout_session( $data );
+        wpinv_set_checkout_session($data);
     }
 
     return $discounts;
@@ -886,27 +886,27 @@ 
 function wpinv_unset_all_cart_discounts() {
     $data = wpinv_get_checkout_session();
     
-    if ( !empty( $data ) && isset( $data['cart_discounts'] ) ) {
-        unset( $data['cart_discounts'] );
+    if (!empty($data) && isset($data['cart_discounts'])) {
+        unset($data['cart_discounts']);
         
-         wpinv_set_checkout_session( $data );
+         wpinv_set_checkout_session($data);
          return true;
     }
     
     return false;
 }
 
-function wpinv_get_cart_discounts( $items = array() ) {
+function wpinv_get_cart_discounts($items = array()) {
     $session = wpinv_get_checkout_session();
     
-    $discounts = !empty( $session['cart_discounts'] ) ? $session['cart_discounts'] : false;
+    $discounts = !empty($session['cart_discounts']) ? $session['cart_discounts'] : false;
     return $discounts;
 }
 
-function wpinv_cart_has_discounts( $items = array() ) {
+function wpinv_cart_has_discounts($items = array()) {
     $ret = false;
 
-    if ( wpinv_get_cart_discounts( $items ) ) {
+    if (wpinv_get_cart_discounts($items)) {
         $ret = true;
     }
     
@@ -917,131 +917,131 @@ 
     }
     */
 
-    return apply_filters( 'wpinv_cart_has_discounts', $ret );
+    return apply_filters('wpinv_cart_has_discounts', $ret);
 }
 
-function wpinv_get_cart_discounted_amount( $items = array(), $discounts = false ) {
+function wpinv_get_cart_discounted_amount($items = array(), $discounts = false) {
     $amount = 0.00;
-    $items  = !empty( $items ) ? $items : wpinv_get_cart_content_details();
+    $items  = !empty($items) ? $items : wpinv_get_cart_content_details();
 
-    if ( $items ) {
-        $discounts = wp_list_pluck( $items, 'discount' );
+    if ($items) {
+        $discounts = wp_list_pluck($items, 'discount');
 
-        if ( is_array( $discounts ) ) {
-            $discounts = array_map( 'floatval', $discounts );
-            $amount    = array_sum( $discounts );
+        if (is_array($discounts)) {
+            $discounts = array_map('floatval', $discounts);
+            $amount    = array_sum($discounts);
         }
     }
 
-    return apply_filters( 'wpinv_get_cart_discounted_amount', $amount );
+    return apply_filters('wpinv_get_cart_discounted_amount', $amount);
 }
 
-function wpinv_get_cart_items_discount_amount( $items = array(), $discount = false ) {
-    $items  = !empty( $items ) ? $items : wpinv_get_cart_content_details();
+function wpinv_get_cart_items_discount_amount($items = array(), $discount = false) {
+    $items = !empty($items) ? $items : wpinv_get_cart_content_details();
     
-    if ( empty( $discount ) || empty( $items ) ) {
+    if (empty($discount) || empty($items)) {
         return 0;
     }
 
     $amount = 0;
     
-    foreach ( $items as $item ) {
-        $amount += wpinv_get_cart_item_discount_amount( $item, $discount );
+    foreach ($items as $item) {
+        $amount += wpinv_get_cart_item_discount_amount($item, $discount);
     }
     
-    $amount = wpinv_round_amount( $amount );
+    $amount = wpinv_round_amount($amount);
 
     return $amount;
 }
 
-function wpinv_get_cart_item_discount_amount( $item = array(), $discount = false ) {
+function wpinv_get_cart_item_discount_amount($item = array(), $discount = false) {
     global $wpinv_is_last_cart_item, $wpinv_flat_discount_total;
     
     $amount = 0;
 
-    if ( empty( $item ) || empty( $item['id'] ) ) {
+    if (empty($item) || empty($item['id'])) {
         return $amount;
     }
 
-    if ( empty( $item['quantity'] ) ) {
+    if (empty($item['quantity'])) {
         return $amount;
     }
 
-    if ( empty( $item['options'] ) ) {
+    if (empty($item['options'])) {
         $item['options'] = array();
     }
 
-    $price            = wpinv_get_cart_item_price( $item['id'], $item, $item['options'] );
+    $price            = wpinv_get_cart_item_price($item['id'], $item, $item['options']);
     $discounted_price = $price;
 
     $discounts = false === $discount ? wpinv_get_cart_discounts() : $discount;
-    if ( empty( $discounts ) ) {
+    if (empty($discounts)) {
         return $amount;
     }
 
-    if ( $discounts ) {
-        if ( is_array( $discounts ) ) {
-            $discounts = array_values( $discounts );
+    if ($discounts) {
+        if (is_array($discounts)) {
+            $discounts = array_values($discounts);
         } else {
-            $discounts = explode( ',', $discounts );
+            $discounts = explode(',', $discounts);
         }
     }
 
-    if( $discounts ) {
-        foreach ( $discounts as $discount ) {
-            $code_id = wpinv_get_discount_id_by_code( $discount );
+    if ($discounts) {
+        foreach ($discounts as $discount) {
+            $code_id = wpinv_get_discount_id_by_code($discount);
 
             // Check discount exists
-            if( ! $code_id ) {
+            if (!$code_id) {
                 continue;
             }
 
-            $reqs           = wpinv_get_discount_item_reqs( $code_id );
-            $excluded_items = wpinv_get_discount_excluded_items( $code_id );
+            $reqs           = wpinv_get_discount_item_reqs($code_id);
+            $excluded_items = wpinv_get_discount_excluded_items($code_id);
 
             // Make sure requirements are set and that this discount shouldn't apply to the whole cart
-            if ( !empty( $reqs ) && wpinv_is_discount_not_global( $code_id ) ) {
-                foreach ( $reqs as $item_id ) {
-                    if ( $item_id == $item['id'] && ! in_array( $item['id'], $excluded_items ) ) {
-                        $discounted_price -= $price - wpinv_get_discounted_amount( $discount, $price );
+            if (!empty($reqs) && wpinv_is_discount_not_global($code_id)) {
+                foreach ($reqs as $item_id) {
+                    if ($item_id == $item['id'] && !in_array($item['id'], $excluded_items)) {
+                        $discounted_price -= $price - wpinv_get_discounted_amount($discount, $price);
                     }
                 }
             } else {
                 // This is a global cart discount
-                if ( !in_array( $item['id'], $excluded_items ) ) {
-                    if ( 'flat' === wpinv_get_discount_type( $code_id ) ) {
+                if (!in_array($item['id'], $excluded_items)) {
+                    if ('flat' === wpinv_get_discount_type($code_id)) {
                         $items_subtotal    = 0.00;
                         $cart_items        = wpinv_get_cart_contents();
                         
-                        foreach ( $cart_items as $cart_item ) {
-                            if ( ! in_array( $cart_item['id'], $excluded_items ) ) {
-                                $options = !empty( $cart_item['options'] ) ? $cart_item['options'] : array();
-                                $item_price      = wpinv_get_cart_item_price( $cart_item['id'], $cart_item, $options );
+                        foreach ($cart_items as $cart_item) {
+                            if (!in_array($cart_item['id'], $excluded_items)) {
+                                $options = !empty($cart_item['options']) ? $cart_item['options'] : array();
+                                $item_price      = wpinv_get_cart_item_price($cart_item['id'], $cart_item, $options);
                                 $items_subtotal += $item_price * $cart_item['quantity'];
                             }
                         }
 
-                        $subtotal_percent  = ( ( $price * $item['quantity'] ) / $items_subtotal );
-                        $code_amount       = wpinv_get_discount_amount( $code_id );
+                        $subtotal_percent  = (($price * $item['quantity']) / $items_subtotal);
+                        $code_amount       = wpinv_get_discount_amount($code_id);
                         $discounted_amount = $code_amount * $subtotal_percent;
                         $discounted_price -= $discounted_amount;
 
-                        $wpinv_flat_discount_total += round( $discounted_amount, wpinv_currency_decimal_filter() );
+                        $wpinv_flat_discount_total += round($discounted_amount, wpinv_currency_decimal_filter());
 
-                        if ( $wpinv_is_last_cart_item && $wpinv_flat_discount_total < $code_amount ) {
+                        if ($wpinv_is_last_cart_item && $wpinv_flat_discount_total < $code_amount) {
                             $adjustment = $code_amount - $wpinv_flat_discount_total;
                             $discounted_price -= $adjustment;
                         }
                     } else {
-                        $discounted_price -= $price - wpinv_get_discounted_amount( $discount, $price );
+                        $discounted_price -= $price - wpinv_get_discounted_amount($discount, $price);
                     }
                 }
             }
         }
 
-        $amount = ( $price - apply_filters( 'wpinv_get_cart_item_discounted_amount', $discounted_price, $discounts, $item, $price ) );
+        $amount = ($price - apply_filters('wpinv_get_cart_item_discounted_amount', $discounted_price, $discounts, $item, $price));
 
-        if ( 'flat' !== wpinv_get_discount_type( $code_id ) ) {
+        if ('flat' !== wpinv_get_discount_type($code_id)) {
             $amount = $amount * $item['quantity'];
         }
     }
@@ -1049,59 +1049,59 @@ 
     return $amount;
 }
 
-function wpinv_cart_discounts_html( $items = array() ) {
-    echo wpinv_get_cart_discounts_html( $items );
+function wpinv_cart_discounts_html($items = array()) {
+    echo wpinv_get_cart_discounts_html($items);
 }
 
-function wpinv_get_cart_discounts_html( $items = array(), $discounts = false ) {
+function wpinv_get_cart_discounts_html($items = array(), $discounts = false) {
     global $wpi_cart_columns;
     
-    $items  = !empty( $items ) ? $items : wpinv_get_cart_content_details();
+    $items = !empty($items) ? $items : wpinv_get_cart_content_details();
     
-    if ( !$discounts ) {
-        $discounts = wpinv_get_cart_discounts( $items );
+    if (!$discounts) {
+        $discounts = wpinv_get_cart_discounts($items);
     }
 
-    if ( !$discounts ) {
+    if (!$discounts) {
         return;
     }
     
-    $discounts = is_array( $discounts ) ? $discounts : array( $discounts );
+    $discounts = is_array($discounts) ? $discounts : array($discounts);
     
     $html = '';
 
-    foreach ( $discounts as $discount ) {
-        $discount_id    = wpinv_get_discount_id_by_code( $discount );
-        $discount_value = wpinv_get_discount_amount( $discount_id );
-        $rate           = wpinv_format_discount_rate( wpinv_get_discount_type( $discount_id ), $discount_value );
-        $amount         = wpinv_get_cart_items_discount_amount( $items, $discount );
-        $remove_btn     = '<a title="' . esc_attr__( 'Remove discount', 'invoicing' ) . '" data-code="' . $discount . '" data-value="' . $discount_value . '" class="wpi-discount-remove" href="javascript:void(0);">[<i class="fa fa-times" aria-hidden="true"></i>]</a> ';
+    foreach ($discounts as $discount) {
+        $discount_id    = wpinv_get_discount_id_by_code($discount);
+        $discount_value = wpinv_get_discount_amount($discount_id);
+        $rate           = wpinv_format_discount_rate(wpinv_get_discount_type($discount_id), $discount_value);
+        $amount         = wpinv_get_cart_items_discount_amount($items, $discount);
+        $remove_btn     = '<a title="' . esc_attr__('Remove discount', 'invoicing') . '" data-code="' . $discount . '" data-value="' . $discount_value . '" class="wpi-discount-remove" href="javascript:void(0);">[<i class="fa fa-times" aria-hidden="true"></i>]</a> ';
         
         $html .= '<tr class="wpinv_cart_footer_row wpinv_cart_discount_row">';
         ob_start();
-        do_action( 'wpinv_checkout_table_discount_first', $items );
+        do_action('wpinv_checkout_table_discount_first', $items);
         $html .= ob_get_clean();
-        $html .= '<td class="wpinv_cart_discount_label text-right" colspan="' . $wpi_cart_columns . '">' . $remove_btn . '<strong>' . wpinv_cart_discount_label( $discount, $rate, false ) . '</strong></td><td class="wpinv_cart_discount text-right"><span data-discount="' . $amount . '" class="wpinv_cart_discount_amount">&ndash;' . wpinv_price( wpinv_format_amount( $amount ) ) . '</span></td>';
+        $html .= '<td class="wpinv_cart_discount_label text-right" colspan="' . $wpi_cart_columns . '">' . $remove_btn . '<strong>' . wpinv_cart_discount_label($discount, $rate, false) . '</strong></td><td class="wpinv_cart_discount text-right"><span data-discount="' . $amount . '" class="wpinv_cart_discount_amount">&ndash;' . wpinv_price(wpinv_format_amount($amount)) . '</span></td>';
         ob_start();
-        do_action( 'wpinv_checkout_table_discount_last', $items );
+        do_action('wpinv_checkout_table_discount_last', $items);
         $html .= ob_get_clean();
         $html .= '</tr>';
     }
 
-    return apply_filters( 'wpinv_get_cart_discounts_html', $html, $discounts, $rate );
+    return apply_filters('wpinv_get_cart_discounts_html', $html, $discounts, $rate);
 }
 
-function wpinv_display_cart_discount( $formatted = false, $echo = false ) {
+function wpinv_display_cart_discount($formatted = false, $echo = false) {
     $discounts = wpinv_get_cart_discounts();
 
-    if ( empty( $discounts ) ) {
+    if (empty($discounts)) {
         return false;
     }
 
-    $discount_id  = wpinv_get_discount_id_by_code( $discounts[0] );
-    $amount       = wpinv_format_discount_rate( wpinv_get_discount_type( $discount_id ), wpinv_get_discount_amount( $discount_id ) );
+    $discount_id  = wpinv_get_discount_id_by_code($discounts[0]);
+    $amount       = wpinv_format_discount_rate(wpinv_get_discount_type($discount_id), wpinv_get_discount_amount($discount_id));
 
-    if ( $echo ) {
+    if ($echo) {
         echo $amount;
     }
 
@@ -1109,135 +1109,135 @@ 
 }
 
 function wpinv_remove_cart_discount() {
-    if ( !isset( $_GET['discount_id'] ) || ! isset( $_GET['discount_code'] ) ) {
+    if (!isset($_GET['discount_id']) || !isset($_GET['discount_code'])) {
         return;
     }
 
-    do_action( 'wpinv_pre_remove_cart_discount', absint( $_GET['discount_id'] ) );
+    do_action('wpinv_pre_remove_cart_discount', absint($_GET['discount_id']));
 
-    wpinv_unset_cart_discount( urldecode( $_GET['discount_code'] ) );
+    wpinv_unset_cart_discount(urldecode($_GET['discount_code']));
 
-    do_action( 'wpinv_post_remove_cart_discount', absint( $_GET['discount_id'] ) );
+    do_action('wpinv_post_remove_cart_discount', absint($_GET['discount_id']));
 
-    wp_redirect( wpinv_get_checkout_uri() ); wpinv_die();
+    wp_redirect(wpinv_get_checkout_uri()); wpinv_die();
 }
-add_action( 'wpinv_remove_cart_discount', 'wpinv_remove_cart_discount' );
+add_action('wpinv_remove_cart_discount', 'wpinv_remove_cart_discount');
 
-function wpinv_maybe_remove_cart_discount( $cart_key = 0 ) {
+function wpinv_maybe_remove_cart_discount($cart_key = 0) {
     $discounts = wpinv_get_cart_discounts();
 
-    if ( !$discounts ) {
+    if (!$discounts) {
         return;
     }
 
-    foreach ( $discounts as $discount ) {
-        if ( !wpinv_is_discount_valid( $discount ) ) {
-            wpinv_unset_cart_discount( $discount );
+    foreach ($discounts as $discount) {
+        if (!wpinv_is_discount_valid($discount)) {
+            wpinv_unset_cart_discount($discount);
         }
     }
 }
-add_action( 'wpinv_post_remove_from_cart', 'wpinv_maybe_remove_cart_discount' );
+add_action('wpinv_post_remove_from_cart', 'wpinv_maybe_remove_cart_discount');
 
 function wpinv_multiple_discounts_allowed() {
-    $ret = wpinv_get_option( 'allow_multiple_discounts', false );
-    return (bool) apply_filters( 'wpinv_multiple_discounts_allowed', $ret );
+    $ret = wpinv_get_option('allow_multiple_discounts', false);
+    return (bool)apply_filters('wpinv_multiple_discounts_allowed', $ret);
 }
 
 function wpinv_listen_for_cart_discount() {
     global $wpi_session;
     
-    if ( empty( $_REQUEST['discount'] ) || is_array( $_REQUEST['discount'] ) ) {
+    if (empty($_REQUEST['discount']) || is_array($_REQUEST['discount'])) {
         return;
     }
 
-    $code = preg_replace('/[^a-zA-Z0-9-_]+/', '', $_REQUEST['discount'] );
+    $code = preg_replace('/[^a-zA-Z0-9-_]+/', '', $_REQUEST['discount']);
 
-    $wpi_session->set( 'preset_discount', $code );
+    $wpi_session->set('preset_discount', $code);
 }
 //add_action( 'init', 'wpinv_listen_for_cart_discount', 0 );
 
 function wpinv_apply_preset_discount() {
     global $wpi_session;
     
-    $code = $wpi_session->get( 'preset_discount' );
+    $code = $wpi_session->get('preset_discount');
 
-    if ( !$code ) {
+    if (!$code) {
         return;
     }
 
-    if ( !wpinv_is_discount_valid( $code, '', false ) ) {
+    if (!wpinv_is_discount_valid($code, '', false)) {
         return;
     }
     
-    $code = apply_filters( 'wpinv_apply_preset_discount', $code );
+    $code = apply_filters('wpinv_apply_preset_discount', $code);
 
-    wpinv_set_cart_discount( $code );
+    wpinv_set_cart_discount($code);
 
-    $wpi_session->set( 'preset_discount', null );
+    $wpi_session->set('preset_discount', null);
 }
 //add_action( 'init', 'wpinv_apply_preset_discount', 999 );
 
-function wpinv_get_discount_label( $code, $echo = true ) {
-    $label = wp_sprintf( __( 'Discount%1$s', 'invoicing' ), ( $code != '' && $code != 'none' ? ' (<code>' . $code . '</code>)': '' ) );
-    $label = apply_filters( 'wpinv_get_discount_label', $label, $code );
+function wpinv_get_discount_label($code, $echo = true) {
+    $label = wp_sprintf(__('Discount%1$s', 'invoicing'), ($code != '' && $code != 'none' ? ' (<code>' . $code . '</code>)' : ''));
+    $label = apply_filters('wpinv_get_discount_label', $label, $code);
 
-    if ( $echo ) {
+    if ($echo) {
         echo $label;
     } else {
         return $label;
     }
 }
 
-function wpinv_cart_discount_label( $code, $rate, $echo = true ) {
-    $label = wp_sprintf( __( '%1$s Discount: %2$s', 'invoicing' ), $rate, $code );
-    $label = apply_filters( 'wpinv_cart_discount_label', $label, $code, $rate );
+function wpinv_cart_discount_label($code, $rate, $echo = true) {
+    $label = wp_sprintf(__('%1$s Discount: %2$s', 'invoicing'), $rate, $code);
+    $label = apply_filters('wpinv_cart_discount_label', $label, $code, $rate);
 
-    if ( $echo ) {
+    if ($echo) {
         echo $label;
     } else {
         return $label;
     }
 }
 
-function wpinv_check_delete_discount( $check, $post, $force_delete ) {
-    if ( $post->post_type == 'wpi_discount' && wpinv_get_discount_uses( $post->ID ) > 0 ) {
+function wpinv_check_delete_discount($check, $post, $force_delete) {
+    if ($post->post_type == 'wpi_discount' && wpinv_get_discount_uses($post->ID) > 0) {
         return true;
     }
     
     return $check;
 }
-add_filter( 'pre_delete_post', 'wpinv_check_delete_discount', 10, 3 );
+add_filter('pre_delete_post', 'wpinv_check_delete_discount', 10, 3);
 
 function wpinv_checkout_form_validate_discounts() {
     global $wpi_checkout_id;
     
     $discounts = wpinv_get_cart_discounts();
     
-    if ( !empty( $discounts ) ) {
+    if (!empty($discounts)) {
         $invalid = false;
         
-        foreach ( $discounts as $key => $code ) {
-            if ( !wpinv_is_discount_valid( $code, (int)wpinv_get_user_id( $wpi_checkout_id ) ) ) {
+        foreach ($discounts as $key => $code) {
+            if (!wpinv_is_discount_valid($code, (int)wpinv_get_user_id($wpi_checkout_id))) {
                 $invalid = true;
                 
-                wpinv_unset_cart_discount( $code );
+                wpinv_unset_cart_discount($code);
             }
         }
         
-        if ( $invalid ) {
+        if ($invalid) {
             $errors = wpinv_get_errors();
-            $error  = !empty( $errors['wpinv-discount-error'] ) ? $errors['wpinv-discount-error'] . ' ' : '';
-            $error  .= __( 'The discount has been removed from cart.', 'invoicing' );
-            wpinv_set_error( 'wpinv-discount-error', $error );
+            $error  = !empty($errors['wpinv-discount-error']) ? $errors['wpinv-discount-error'] . ' ' : '';
+            $error .= __('The discount has been removed from cart.', 'invoicing');
+            wpinv_set_error('wpinv-discount-error', $error);
             
-            wpinv_recalculate_tax( true );
+            wpinv_recalculate_tax(true);
         }
     }
 }
-add_action( 'wpinv_before_checkout_form', 'wpinv_checkout_form_validate_discounts', -10 );
+add_action('wpinv_before_checkout_form', 'wpinv_checkout_form_validate_discounts', -10);
 
 function wpinv_discount_amount() {
     $output = 0.00;
     
-    return apply_filters( 'wpinv_discount_amount', $output );
+    return apply_filters('wpinv_discount_amount', $output);
 }
\ No newline at end of file

includes/admin/meta-boxes/class-mb-invoice-items.php

Spacing +150 added lines, -150 removed lines

@@ -1,22 +1,22 @@ 
 <?php
 // MUST have WordPress.
-if ( !defined( 'WPINC' ) ) {
-    exit( 'Do NOT access this file directly: ' . basename( __FILE__ ) );
+if (!defined('WPINC')) {
+    exit('Do NOT access this file directly: ' . basename(__FILE__));
 }
 
 class WPInv_Meta_Box_Items {
-    public static function output( $post ) {        
+    public static function output($post) {        
         global $wpinv_euvat, $ajax_cart_details;
         
-        $post_id            = !empty( $post->ID ) ? $post->ID : 0;
-        $invoice            = new WPInv_Invoice( $post_id );
+        $post_id            = !empty($post->ID) ? $post->ID : 0;
+        $invoice            = new WPInv_Invoice($post_id);
         $ajax_cart_details  = $invoice->get_cart_details();
-        $subtotal           = $invoice->get_subtotal( true );
+        $subtotal           = $invoice->get_subtotal(true);
         $discount_raw       = $invoice->get_discount();
-        $discount           = wpinv_price( $discount_raw, $invoice->get_currency() );
+        $discount           = wpinv_price($discount_raw, $invoice->get_currency());
         $discounts          = $discount_raw > 0 ? $invoice->get_discounts() : '';
-        $tax                = $invoice->get_tax( true );
-        $total              = $invoice->get_total( true );
+        $tax                = $invoice->get_tax(true);
+        $total              = $invoice->get_total(true);
         $item_quantities    = wpinv_item_quantities_enabled();
         $use_taxes          = wpinv_use_taxes();
         $item_types         = wpinv_get_item_types();
@@ -29,20 +29,20 @@ 
         }
         
         $cols = 5;
-        if ( $item_quantities ) {
+        if ($item_quantities) {
             $cols++;
         }
-        if ( $use_taxes ) {
+        if ($use_taxes) {
             $cols++;
         }
         $class = '';
-        if ( $invoice->is_paid() ) {
+        if ($invoice->is_paid()) {
             $class .= ' wpinv-paid';
         }
-        if ( $invoice->is_refunded() ) {
+        if ($invoice->is_refunded()) {
             $class .= ' wpinv-refunded';
         }
-        if ( $is_recurring ) {
+        if ($is_recurring) {
             $class .= ' wpi-recurring';
         }
         ?>
@@ -50,21 +50,21 @@ 
             <table id="wpinv_items" class="wpinv-items" cellspacing="0" cellpadding="0">
                 <thead>
                     <tr>
-                        <th class="id"><?php _e( 'ID', 'invoicing' );?></th>
-                        <th class="title"><?php _e( 'Item', 'invoicing' );?></th>
-                        <th class="price"><?php _e( 'Price', 'invoicing' );?></th>
-                        <?php if ( $item_quantities ) { ?>
-                        <th class="qty"><?php _e( 'Qty', 'invoicing' );?></th>
+                        <th class="id"><?php _e('ID', 'invoicing'); ?></th>
+                        <th class="title"><?php _e('Item', 'invoicing'); ?></th>
+                        <th class="price"><?php _e('Price', 'invoicing'); ?></th>
+                        <?php if ($item_quantities) { ?>
+                        <th class="qty"><?php _e('Qty', 'invoicing'); ?></th>
                         <?php } ?>
-                        <th class="total"><?php _e( 'Total', 'invoicing' );?></th>
-                        <?php if ( $use_taxes ) { ?>
-                        <th class="tax"><?php _e( 'Tax (%)', 'invoicing' );?></th>
+                        <th class="total"><?php _e('Total', 'invoicing'); ?></th>
+                        <?php if ($use_taxes) { ?>
+                        <th class="tax"><?php _e('Tax (%)', 'invoicing'); ?></th>
                         <?php } ?>
                         <th class="action"></th>
                     </tr>
                 </thead>
                 <tbody class="wpinv-line-items">
-                    <?php echo wpinv_admin_get_line_items( $invoice ); ?>
+                    <?php echo wpinv_admin_get_line_items($invoice); ?>
                 </tbody>
                 <tfoot class="wpinv-totals">
                     <tr>
@@ -76,44 +76,44 @@ 
                                         </td>
                                         <td class="title">
                                             <input type="text" class="regular-text" placeholder="Item name" value="" name="_wpinv_quick[name]">
-                                            <?php if ( $wpinv_euvat->allow_vat_rules() ) { ?>
+                                            <?php if ($wpinv_euvat->allow_vat_rules()) { ?>
                                             <div class="wp-clearfix">
                                                 <label class="wpi-vat-rule">
-                                                    <span class="title"><?php _e( 'VAT rule type', 'invoicing' );?></span>
+                                                    <span class="title"><?php _e('VAT rule type', 'invoicing'); ?></span>
                                                     <span class="input-text-wrap">
-                                                        <?php echo wpinv_html_select( array(
+                                                        <?php echo wpinv_html_select(array(
                                                             'options'          => $wpinv_euvat->get_rules(),
                                                             'name'             => '_wpinv_quick[vat_rule]',
                                                             'id'               => '_wpinv_quick_vat_rule',
                                                             'show_option_all'  => false,
                                                             'show_option_none' => false,
                                                             'class'            => 'gdmbx2-text-medium wpinv-quick-vat-rule',
-                                                        ) ); ?>
+                                                        )); ?>
                                                     </span>
                                                 </label>
                                             </div>
-                                            <?php } if ( $wpinv_euvat->allow_vat_classes() ) { ?>
+                                            <?php } if ($wpinv_euvat->allow_vat_classes()) { ?>
                                             <div class="wp-clearfix">
                                                 <label class="wpi-vat-class">
-                                                    <span class="title"><?php _e( 'VAT class', 'invoicing' );?></span>
+                                                    <span class="title"><?php _e('VAT class', 'invoicing'); ?></span>
                                                     <span class="input-text-wrap">
-                                                        <?php echo wpinv_html_select( array(
+                                                        <?php echo wpinv_html_select(array(
                                                             'options'          => $wpinv_euvat->get_all_classes(),
                                                             'name'             => '_wpinv_quick[vat_class]',
                                                             'id'               => '_wpinv_quick_vat_class',
                                                             'show_option_all'  => false,
                                                             'show_option_none' => false,
                                                             'class'            => 'gdmbx2-text-medium wpinv-quick-vat-class',
-                                                        ) ); ?>
+                                                        )); ?>
                                                     </span>
                                                 </label>
                                             </div>
                                             <?php } ?>
                                             <div class="wp-clearfix">
                                                 <label class="wpi-item-type">
-                                                    <span class="title"><?php _e( 'Item type', 'invoicing' );?></span>
+                                                    <span class="title"><?php _e('Item type', 'invoicing'); ?></span>
                                                     <span class="input-text-wrap">
-                                                        <?php echo wpinv_html_select( array(
+                                                        <?php echo wpinv_html_select(array(
                                                             'options'          => $item_types,
                                                             'name'             => '_wpinv_quick[type]',
                                                             'id'               => '_wpinv_quick_type',
@@ -121,7 +121,7 @@ 
                                                             'show_option_all'  => false,
                                                             'show_option_none' => false,
                                                             'class'            => 'gdmbx2-text-medium wpinv-quick-type',
-                                                        ) ); ?>
+                                                        )); ?>
                                                     </span>
                                                 </label>
                                             </div>
@@ -134,11 +134,11 @@ 
                                             </div>
                                         </td>
                                         <td class="price"><input type="text" placeholder="0.00" class="wpi-field-price wpi-price" name="_wpinv_quick[price]" /></td>
-                                        <?php if ( $item_quantities ) { ?>
+                                        <?php if ($item_quantities) { ?>
                                         <td class="qty"><input type="number" class="small-text" step="1" min="1" value="1" name="_wpinv_quick[qty]" /></td>
                                         <?php } ?>
                                         <td class="total"></td>
-                                        <?php if ( $use_taxes ) { ?>
+                                        <?php if ($use_taxes) { ?>
                                         <td class="tax"></td>
                                         <?php } ?>
                                         <td class="action"></td>
@@ -151,29 +151,29 @@ 
                         <td colspan="<?php echo $cols; ?>"></td>
                     </tr>
                     <tr class="totals">
-                        <td colspan="<?php echo ( $cols - 4 ); ?>"></td>
+                        <td colspan="<?php echo ($cols - 4); ?>"></td>
                         <td colspan="4">
                             <table cellspacing="0" cellpadding="0">
                                 <tr class="subtotal">
-                                    <td class="name"><?php _e( 'Sub Total:', 'invoicing' );?></td>
-                                    <td class="total"><?php echo $subtotal;?></td>
+                                    <td class="name"><?php _e('Sub Total:', 'invoicing'); ?></td>
+                                    <td class="total"><?php echo $subtotal; ?></td>
                                     <td class="action"></td>
                                 </tr>
                                 <tr class="discount">
-                                    <td class="name"><?php wpinv_get_discount_label( wpinv_discount_code( $invoice->ID ) ); ?>:</td>
-                                    <td class="total"><?php echo wpinv_discount( $invoice->ID, true, true ); ?></td>
+                                    <td class="name"><?php wpinv_get_discount_label(wpinv_discount_code($invoice->ID)); ?>:</td>
+                                    <td class="total"><?php echo wpinv_discount($invoice->ID, true, true); ?></td>
                                     <td class="action"></td>
                                 </tr>
-                                <?php if ( $use_taxes ) { ?>
+                                <?php if ($use_taxes) { ?>
                                 <tr class="tax">
-                                    <td class="name"><?php _e( 'Tax:', 'invoicing' );?></td>
-                                    <td class="total"><?php echo $tax;?></td>
+                                    <td class="name"><?php _e('Tax:', 'invoicing'); ?></td>
+                                    <td class="total"><?php echo $tax; ?></td>
                                     <td class="action"></td>
                                 </tr>
                                 <?php } ?>
                                 <tr class="total">
-                                    <td class="name"><?php echo apply_filters( 'wpinv_invoice_items_total_label', __( 'Invoice Total:', 'invoicing' ), $invoice );?></td>
-                                    <td class="total"><?php echo $total;?></td>
+                                    <td class="name"><?php echo apply_filters('wpinv_invoice_items_total_label', __('Invoice Total:', 'invoicing'), $invoice); ?></td>
+                                    <td class="total"><?php echo $total; ?></td>
                                     <td class="action"></td>
                                 </tr>
                             </table>
@@ -183,89 +183,89 @@ 
             </table>
             <div class="wpinv-actions">
                 <?php
-                    if ( !$invoice->is_paid() && !$invoice->is_refunded() ) {
-                    if ( !$invoice->is_recurring() ) {
-                    echo wpinv_item_dropdown( array(
+                    if (!$invoice->is_paid() && !$invoice->is_refunded()) {
+                    if (!$invoice->is_recurring()) {
+                    echo wpinv_item_dropdown(array(
                         'name'             => 'wpinv_invoice_item',
                         'id'               => 'wpinv_invoice_item',
                         'with_packages'    => false,
                         'show_recurring'   => true,
-                    ) );
+                    ));
                     ?>
-                <input type="button" value="<?php echo sprintf(esc_attr__( 'Add item to %s', 'invoicing'), $type_title); ?>" class="button button-primary" id="wpinv-add-item"><input type="button" value="<?php esc_attr_e( 'Create new item', 'invoicing' );?>" class="button button-primary" id="wpinv-new-item"><?php } ?><input type="button" value="<?php esc_attr_e( 'Recalculate Totals', 'invoicing' );?>" class="button button-primary wpinv-flr" id="wpinv-recalc-totals">
+                <input type="button" value="<?php echo sprintf(esc_attr__('Add item to %s', 'invoicing'), $type_title); ?>" class="button button-primary" id="wpinv-add-item"><input type="button" value="<?php esc_attr_e('Create new item', 'invoicing'); ?>" class="button button-primary" id="wpinv-new-item"><?php } ?><input type="button" value="<?php esc_attr_e('Recalculate Totals', 'invoicing'); ?>" class="button button-primary wpinv-flr" id="wpinv-recalc-totals">
                     <?php } ?>
-                <?php do_action( 'wpinv_invoice_items_actions', $invoice ); ?>
+                <?php do_action('wpinv_invoice_items_actions', $invoice); ?>
             </div>
         </div>
         <?php
     }
     
-    public static function prices( $post ) {        
+    public static function prices($post) {        
         $symbol         = wpinv_currency_symbol();
         $position       = wpinv_currency_position();
-        $item           = new WPInv_Item( $post->ID );
+        $item           = new WPInv_Item($post->ID);
         
         $price          = $item->get_price();
         $is_recurring   = $item->is_recurring();
         $period         = $item->get_recurring_period();
-        $interval       = absint( $item->get_recurring_interval() );
-        $times          = absint( $item->get_recurring_limit() );
+        $interval       = absint($item->get_recurring_interval());
+        $times          = absint($item->get_recurring_limit());
         $free_trial     = $item->has_free_trial();
         $trial_interval = $item->get_trial_interval();
         $trial_period   = $item->get_trial_period();
         
         $intervals      = array();
-        for ( $i = 1; $i <= 90; $i++ ) {
+        for ($i = 1; $i <= 90; $i++) {
             $intervals[$i] = $i;
         }
         
-        $interval       = $interval > 0 ? $interval : 1;
+        $interval = $interval > 0 ? $interval : 1;
         
         $class = $is_recurring ? 'wpinv-recurring-y' : 'wpinv-recurring-n';
         ?>
-        <p class="wpinv-row-prices"><?php echo ( $position != 'right' ? $symbol . '&nbsp;' : '' );?><input type="text" maxlength="12" placeholder="<?php echo wpinv_sanitize_amount( 0 ); ?>" value="<?php echo $price;?>" id="wpinv_item_price" name="wpinv_item_price" class="medium-text wpi-field-price wpi-price" <?php disabled( $item->is_package(), true ); ?> /><?php echo ( $position == 'right' ? '&nbsp;' . $symbol : '' );?><input type="hidden" name="wpinv_vat_meta_box_nonce" value="<?php echo wp_create_nonce( 'wpinv_item_meta_box_save' ) ;?>" />
-        <?php if ( $item->is_package() ) { ?>
-        <span class="description"><?php _e( 'GD package item price can be edited only from GD payment manager.', 'invoicing' ); ?></span>
+        <p class="wpinv-row-prices"><?php echo ($position != 'right' ? $symbol . '&nbsp;' : ''); ?><input type="text" maxlength="12" placeholder="<?php echo wpinv_sanitize_amount(0); ?>" value="<?php echo $price; ?>" id="wpinv_item_price" name="wpinv_item_price" class="medium-text wpi-field-price wpi-price" <?php disabled($item->is_package(), true); ?> /><?php echo ($position == 'right' ? '&nbsp;' . $symbol : ''); ?><input type="hidden" name="wpinv_vat_meta_box_nonce" value="<?php echo wp_create_nonce('wpinv_item_meta_box_save'); ?>" />
+        <?php if ($item->is_package()) { ?>
+        <span class="description"><?php _e('GD package item price can be edited only from GD payment manager.', 'invoicing'); ?></span>
         <?php } ?>
         </p>
         <p class="wpinv-row-is-recurring">
             <label for="wpinv_is_recurring">
-                <input type="checkbox" name="wpinv_is_recurring" id="wpinv_is_recurring" value="1" <?php checked( 1, $is_recurring ); ?> />
-                <?php echo apply_filters( 'wpinv_is_recurring_toggle_text', __( 'Is Recurring Item?', 'invoicing' ) ); ?>
+                <input type="checkbox" name="wpinv_is_recurring" id="wpinv_is_recurring" value="1" <?php checked(1, $is_recurring); ?> />
+                <?php echo apply_filters('wpinv_is_recurring_toggle_text', __('Is Recurring Item?', 'invoicing')); ?>
             </label>
         </p>
-        <p class="wpinv-row-recurring-fields <?php echo $class;?>">
-                <label class="wpinv-period" for="wpinv_recurring_period"><?php _e( 'Recurring', 'invoicing' );?> <select class="wpinv-select " id="wpinv_recurring_period" name="wpinv_recurring_period"><option value="D" data-text="<?php esc_attr_e( 'day(s)', 'invoicing' ); ?>" <?php selected( 'D', $period );?>><?php _e( 'Daily', 'invoicing' ); ?></option><option value="W" data-text="<?php esc_attr_e( 'week(s)', 'invoicing' ); ?>" <?php selected( 'W', $period );?>><?php _e( 'Weekly', 'invoicing' ); ?></option><option value="M" data-text="<?php esc_attr_e( 'month(s)', 'invoicing' ); ?>" <?php selected( 'M', $period );?>><?php _e( 'Monthly', 'invoicing' ); ?></option><option value="Y" data-text="<?php esc_attr_e( 'year(s)', 'invoicing' ); ?>" <?php selected( 'Y', $period );?>><?php _e( 'Yearly', 'invoicing' ); ?></option></select></label>
-                <label class="wpinv-interval" for="wpinv_recurring_interval"> <?php _e( 'at every', 'invoicing' );?> <?php echo wpinv_html_select( array(
+        <p class="wpinv-row-recurring-fields <?php echo $class; ?>">
+                <label class="wpinv-period" for="wpinv_recurring_period"><?php _e('Recurring', 'invoicing'); ?> <select class="wpinv-select " id="wpinv_recurring_period" name="wpinv_recurring_period"><option value="D" data-text="<?php esc_attr_e('day(s)', 'invoicing'); ?>" <?php selected('D', $period); ?>><?php _e('Daily', 'invoicing'); ?></option><option value="W" data-text="<?php esc_attr_e('week(s)', 'invoicing'); ?>" <?php selected('W', $period); ?>><?php _e('Weekly', 'invoicing'); ?></option><option value="M" data-text="<?php esc_attr_e('month(s)', 'invoicing'); ?>" <?php selected('M', $period); ?>><?php _e('Monthly', 'invoicing'); ?></option><option value="Y" data-text="<?php esc_attr_e('year(s)', 'invoicing'); ?>" <?php selected('Y', $period); ?>><?php _e('Yearly', 'invoicing'); ?></option></select></label>
+                <label class="wpinv-interval" for="wpinv_recurring_interval"> <?php _e('at every', 'invoicing'); ?> <?php echo wpinv_html_select(array(
                     'options'          => $intervals,
                     'name'             => 'wpinv_recurring_interval',
                     'id'               => 'wpinv_recurring_interval',
                     'selected'         => $interval,
                     'show_option_all'  => false,
                     'show_option_none' => false
-                ) ); ?> <span id="wpinv_interval_text"><?php _e( 'day(s)', 'invoicing' );?></span></label>
-                <label class="wpinv-times" for="wpinv_recurring_limit"> <?php _e( 'for', 'invoicing' );?> <input class="small-text" type="number" value="<?php echo $times;?>" size="4" id="wpinv_recurring_limit" name="wpinv_recurring_limit" step="1" min="0"> <?php _e( 'time(s) <i>(select 0 for recurring forever until cancelled</i>)', 'invoicing' );?></label>
+                )); ?> <span id="wpinv_interval_text"><?php _e('day(s)', 'invoicing'); ?></span></label>
+                <label class="wpinv-times" for="wpinv_recurring_limit"> <?php _e('for', 'invoicing'); ?> <input class="small-text" type="number" value="<?php echo $times; ?>" size="4" id="wpinv_recurring_limit" name="wpinv_recurring_limit" step="1" min="0"> <?php _e('time(s) <i>(select 0 for recurring forever until cancelled</i>)', 'invoicing'); ?></label>
                 <span class="clear wpi-trial-clr"></span>
                 <label class="wpinv-free-trial" for="wpinv_free_trial">
-                    <input type="checkbox" name="wpinv_free_trial" id="wpinv_free_trial" value="1" <?php checked( true, (bool)$free_trial ); ?> /> 
-                    <?php echo __( 'Offer free trial for', 'invoicing' ); ?>
+                    <input type="checkbox" name="wpinv_free_trial" id="wpinv_free_trial" value="1" <?php checked(true, (bool)$free_trial); ?> /> 
+                    <?php echo __('Offer free trial for', 'invoicing'); ?>
                 </label>
                 <label class="wpinv-trial-interval" for="wpinv_trial_interval">
-                    <input class="small-text" type="number" value="<?php echo $trial_interval;?>" size="4" id="wpinv_trial_interval" name="wpinv_trial_interval" step="1" min="1"> <select class="wpinv-select" id="wpinv_trial_period" name="wpinv_trial_period"><option value="D" <?php selected( 'D', $trial_period );?>><?php _e( 'day(s)', 'invoicing' ); ?></option><option value="W" <?php selected( 'W', $trial_period );?>><?php _e( 'week(s)', 'invoicing' ); ?></option><option value="M" <?php selected( 'M', $trial_period );?>><?php _e( 'month(s)', 'invoicing' ); ?></option><option value="Y" <?php selected( 'Y', $trial_period );?>><?php _e( 'year(s)', 'invoicing' ); ?></option></select>
+                    <input class="small-text" type="number" value="<?php echo $trial_interval; ?>" size="4" id="wpinv_trial_interval" name="wpinv_trial_interval" step="1" min="1"> <select class="wpinv-select" id="wpinv_trial_period" name="wpinv_trial_period"><option value="D" <?php selected('D', $trial_period); ?>><?php _e('day(s)', 'invoicing'); ?></option><option value="W" <?php selected('W', $trial_period); ?>><?php _e('week(s)', 'invoicing'); ?></option><option value="M" <?php selected('M', $trial_period); ?>><?php _e('month(s)', 'invoicing'); ?></option><option value="Y" <?php selected('Y', $trial_period); ?>><?php _e('year(s)', 'invoicing'); ?></option></select>
                 </label>
         </p>
-        <input type="hidden" id="_wpi_current_type" value="<?php echo wpinv_get_item_type( $post->ID ); ?>" />
-        <?php do_action( 'wpinv_item_price_field', $post->ID ); ?>
+        <input type="hidden" id="_wpi_current_type" value="<?php echo wpinv_get_item_type($post->ID); ?>" />
+        <?php do_action('wpinv_item_price_field', $post->ID); ?>
         <?php
     }
     
-    public static function vat_rules( $post ) {
+    public static function vat_rules($post) {
         global $wpinv_euvat;
         
-        $rule_type = $wpinv_euvat->get_item_rule( $post->ID );
+        $rule_type = $wpinv_euvat->get_item_rule($post->ID);
         ?>
-        <p><label for="wpinv_vat_rules"><strong><?php _e( 'Select how VAT rules will be applied:', 'invoicing' );?></strong></label>&nbsp;&nbsp;&nbsp;
-        <?php echo wpinv_html_select( array(
+        <p><label for="wpinv_vat_rules"><strong><?php _e('Select how VAT rules will be applied:', 'invoicing'); ?></strong></label>&nbsp;&nbsp;&nbsp;
+        <?php echo wpinv_html_select(array(
                     'options'          => $wpinv_euvat->get_rules(),
                     'name'             => 'wpinv_vat_rules',
                     'id'               => 'wpinv_vat_rules',
@@ -273,19 +273,19 @@ 
                     'show_option_all'  => false,
                     'show_option_none' => false,
                     'class'            => 'gdmbx2-text-medium wpinv-vat-rules',
-                ) ); ?>
+                )); ?>
         </p>
-        <p class="wpi-m0"><?php _e( 'When you select physical product rules, only consumers and businesses in your country will be charged VAT.  The VAT rate used will be the rate in your country.', 'invoicing' ); ?></p>
-        <p class="wpi-m0"><?php _e( 'If you select Digital product rules, VAT will be charged at the rate that applies in the country of the consumer.  Only businesses in your country will be charged VAT.', 'invoicing' ); ?></p>
+        <p class="wpi-m0"><?php _e('When you select physical product rules, only consumers and businesses in your country will be charged VAT.  The VAT rate used will be the rate in your country.', 'invoicing'); ?></p>
+        <p class="wpi-m0"><?php _e('If you select Digital product rules, VAT will be charged at the rate that applies in the country of the consumer.  Only businesses in your country will be charged VAT.', 'invoicing'); ?></p>
         <?php
     }
     
-    public static function vat_classes( $post ) {
+    public static function vat_classes($post) {
         global $wpinv_euvat;
         
-        $vat_class = $wpinv_euvat->get_item_class( $post->ID );
+        $vat_class = $wpinv_euvat->get_item_class($post->ID);
         ?>
-        <p><?php echo wpinv_html_select( array(
+        <p><?php echo wpinv_html_select(array(
                     'options'          => $wpinv_euvat->get_all_classes(),
                     'name'             => 'wpinv_vat_class',
                     'id'               => 'wpinv_vat_class',
@@ -293,18 +293,18 @@ 
                     'show_option_all'  => false,
                     'show_option_none' => false,
                     'class'            => 'gdmbx2-text-medium wpinv-vat-class',
-                ) ); ?>
+                )); ?>
         </p>
-        <p class="wpi-m0"><?php _e( 'Select the VAT rate class to use for this invoice item.', 'invoicing' ); ?></p>
+        <p class="wpi-m0"><?php _e('Select the VAT rate class to use for this invoice item.', 'invoicing'); ?></p>
         <?php
     }
     
-    public static function item_info( $post ) {
-        $item_type = wpinv_get_item_type( $post->ID );
-        do_action( 'wpinv_item_info_metabox_before', $post );
+    public static function item_info($post) {
+        $item_type = wpinv_get_item_type($post->ID);
+        do_action('wpinv_item_info_metabox_before', $post);
         ?>
-        <p><label for="wpinv_item_type"><strong><?php _e( 'Type:', 'invoicing' );?></strong></label>&nbsp;&nbsp;&nbsp;
-        <?php echo wpinv_html_select( array(
+        <p><label for="wpinv_item_type"><strong><?php _e('Type:', 'invoicing'); ?></strong></label>&nbsp;&nbsp;&nbsp;
+        <?php echo wpinv_html_select(array(
                     'options'          => wpinv_get_item_types(),
                     'name'             => 'wpinv_item_type',
                     'id'               => 'wpinv_item_type',
@@ -313,114 +313,114 @@ 
                     'show_option_none' => false,
                     'class'            => 'gdmbx2-text-medium wpinv-item-type',
                     //'disabled'         => $item_type == 'package' ? true : false,
-                ) ); ?>
+                )); ?>
         </p>
-        <p class="wpi-m0"><?php _e( 'Select item type.', 'invoicing' );?><br><?php _e( '<b>Standard:</b> Standard item type', 'invoicing' );?><br><?php _e( '<b>Fee:</b> Like Registration Fee, Sign up Fee etc.', 'invoicing' );?></p>
+        <p class="wpi-m0"><?php _e('Select item type.', 'invoicing'); ?><br><?php _e('<b>Standard:</b> Standard item type', 'invoicing'); ?><br><?php _e('<b>Fee:</b> Like Registration Fee, Sign up Fee etc.', 'invoicing'); ?></p>
         <?php
-        do_action( 'wpinv_item_info_metabox_after', $post );
+        do_action('wpinv_item_info_metabox_after', $post);
     }
     
-    public static function meta_values( $post ) {
-        $meta_keys = apply_filters( 'wpinv_show_meta_values_for_keys', array(
+    public static function meta_values($post) {
+        $meta_keys = apply_filters('wpinv_show_meta_values_for_keys', array(
             'type',
             'custom_id'
-        ) );
+        ));
         
-        if ( empty( $meta_keys ) ) {
+        if (empty($meta_keys)) {
             return;
         }
         
-        do_action( 'wpinv_meta_values_metabox_before', $post );
+        do_action('wpinv_meta_values_metabox_before', $post);
         
-        foreach ( $meta_keys as $meta_key ) {
+        foreach ($meta_keys as $meta_key) {
             ?>
-            <p class="wpi-mtb05"><label><strong><?php echo $meta_key; ?></strong>: <?php echo get_post_meta( $post->ID, '_wpinv_' . $meta_key, true ); ?></label></p>
+            <p class="wpi-mtb05"><label><strong><?php echo $meta_key; ?></strong>: <?php echo get_post_meta($post->ID, '_wpinv_' . $meta_key, true); ?></label></p>
             <?php 
         }
         
-        do_action( 'wpinv_meta_values_metabox_after', $post );
+        do_action('wpinv_meta_values_metabox_after', $post);
     }
     
-    public static function save( $post_id, $data, $post ) {
-        $invoice        = new WPInv_Invoice( $post_id );
+    public static function save($post_id, $data, $post) {
+        $invoice        = new WPInv_Invoice($post_id);
         
         // Billing
-        $first_name     = sanitize_text_field( $data['wpinv_first_name'] );
-        $last_name      = sanitize_text_field( $data['wpinv_last_name'] );
-        $company        = sanitize_text_field( $data['wpinv_company'] );
-        $vat_number     = sanitize_text_field( $data['wpinv_vat_number'] );
-        $phone          = sanitize_text_field( $data['wpinv_phone'] );
-        $address        = sanitize_text_field( $data['wpinv_address'] );
-        $city           = sanitize_text_field( $data['wpinv_city'] );
-        $zip            = sanitize_text_field( $data['wpinv_zip'] );
-        $country        = sanitize_text_field( $data['wpinv_country'] );
-        $state          = sanitize_text_field( $data['wpinv_state'] );
+        $first_name     = sanitize_text_field($data['wpinv_first_name']);
+        $last_name      = sanitize_text_field($data['wpinv_last_name']);
+        $company        = sanitize_text_field($data['wpinv_company']);
+        $vat_number     = sanitize_text_field($data['wpinv_vat_number']);
+        $phone          = sanitize_text_field($data['wpinv_phone']);
+        $address        = sanitize_text_field($data['wpinv_address']);
+        $city           = sanitize_text_field($data['wpinv_city']);
+        $zip            = sanitize_text_field($data['wpinv_zip']);
+        $country        = sanitize_text_field($data['wpinv_country']);
+        $state          = sanitize_text_field($data['wpinv_state']);
         
         // Details
-        $status         = sanitize_text_field( $data['wpinv_status'] );
-        $old_status     = !empty( $data['original_post_status'] ) ? sanitize_text_field( $data['original_post_status'] ) : $status;
-        $number         = sanitize_text_field( $data['wpinv_number'] );
-        $due_date       = isset( $data['wpinv_due_date'] ) ? sanitize_text_field( $data['wpinv_due_date'] ) : '';
+        $status         = sanitize_text_field($data['wpinv_status']);
+        $old_status     = !empty($data['original_post_status']) ? sanitize_text_field($data['original_post_status']) : $status;
+        $number         = sanitize_text_field($data['wpinv_number']);
+        $due_date       = isset($data['wpinv_due_date']) ? sanitize_text_field($data['wpinv_due_date']) : '';
         //$discounts      = sanitize_text_field( $data['wpinv_discounts'] );
         //$discount       = sanitize_text_field( $data['wpinv_discount'] );
         
-        $ip             = $invoice->get_ip() ? $invoice->get_ip() : wpinv_get_ip();
+        $ip = $invoice->get_ip() ? $invoice->get_ip() : wpinv_get_ip();
         
-        $invoice->set( 'due_date', $due_date );
-        $invoice->set( 'first_name', $first_name );
-        $invoice->set( 'last_name', $last_name );
-        $invoice->set( 'company', $company );
-        $invoice->set( 'vat_number', $vat_number );
-        $invoice->set( 'phone', $phone );
-        $invoice->set( 'address', $address );
-        $invoice->set( 'city', $city );
-        $invoice->set( 'zip', $zip );
-        $invoice->set( 'country', $country );
-        $invoice->set( 'state', $state );
-        $invoice->set( 'status', $status );
+        $invoice->set('due_date', $due_date);
+        $invoice->set('first_name', $first_name);
+        $invoice->set('last_name', $last_name);
+        $invoice->set('company', $company);
+        $invoice->set('vat_number', $vat_number);
+        $invoice->set('phone', $phone);
+        $invoice->set('address', $address);
+        $invoice->set('city', $city);
+        $invoice->set('zip', $zip);
+        $invoice->set('country', $country);
+        $invoice->set('state', $state);
+        $invoice->set('status', $status);
         //$invoice->set( 'number', $number );
         //$invoice->set( 'discounts', $discounts );
         //$invoice->set( 'discount', $discount );
-        $invoice->set( 'ip', $ip );
+        $invoice->set('ip', $ip);
         $invoice->old_status = $_POST['original_post_status'];
         $invoice->currency = wpinv_get_currency();
-        if ( !empty( $data['wpinv_gateway'] ) ) {
-            $invoice->set( 'gateway', sanitize_text_field( $data['wpinv_gateway'] ) );
+        if (!empty($data['wpinv_gateway'])) {
+            $invoice->set('gateway', sanitize_text_field($data['wpinv_gateway']));
         }
         $saved = $invoice->save();
         
         // Check for payment notes
-        if ( !empty( $data['invoice_note'] ) ) {
-            $note               = wp_kses( $data['invoice_note'], array() );
-            $note_type          = sanitize_text_field( $data['invoice_note_type'] );
+        if (!empty($data['invoice_note'])) {
+            $note               = wp_kses($data['invoice_note'], array());
+            $note_type          = sanitize_text_field($data['invoice_note_type']);
             $is_customer_note   = $note_type == 'customer' ? 1 : 0;
         
-            wpinv_insert_payment_note( $invoice->ID, $note, $is_customer_note );
+            wpinv_insert_payment_note($invoice->ID, $note, $is_customer_note);
         }
         
         // Update user address if empty.
-        if ( $saved && !empty( $invoice ) ) {
-            if ( $user_id = $invoice->get_user_id() ) {
-                $user_address = wpinv_get_user_address( $user_id, false );
+        if ($saved && !empty($invoice)) {
+            if ($user_id = $invoice->get_user_id()) {
+                $user_address = wpinv_get_user_address($user_id, false);
                 
                 if (empty($user_address['first_name'])) {
-                    update_user_meta( $user_id, '_wpinv_first_name', $first_name );
-                    update_user_meta( $user_id, '_wpinv_last_name', $last_name );
+                    update_user_meta($user_id, '_wpinv_first_name', $first_name);
+                    update_user_meta($user_id, '_wpinv_last_name', $last_name);
                 } else if (empty($user_address['last_name']) && $user_address['first_name'] == $first_name) {
-                    update_user_meta( $user_id, '_wpinv_last_name', $last_name );
+                    update_user_meta($user_id, '_wpinv_last_name', $last_name);
                 }
                 
                 if (empty($user_address['address']) || empty($user_address['city']) || empty($user_address['state']) || empty($user_address['country'])) {
-                    update_user_meta( $user_id, '_wpinv_address', $address );
-                    update_user_meta( $user_id, '_wpinv_city', $city );
-                    update_user_meta( $user_id, '_wpinv_state', $state );
-                    update_user_meta( $user_id, '_wpinv_country', $country );
-                    update_user_meta( $user_id, '_wpinv_zip', $zip );
-                    update_user_meta( $user_id, '_wpinv_phone', $phone );
+                    update_user_meta($user_id, '_wpinv_address', $address);
+                    update_user_meta($user_id, '_wpinv_city', $city);
+                    update_user_meta($user_id, '_wpinv_state', $state);
+                    update_user_meta($user_id, '_wpinv_country', $country);
+                    update_user_meta($user_id, '_wpinv_zip', $zip);
+                    update_user_meta($user_id, '_wpinv_phone', $phone);
                 }
             }
             
-            do_action( 'wpinv_invoice_metabox_saved', $invoice );
+            do_action('wpinv_invoice_metabox_saved', $invoice);
         }
         
         return $saved;