woothemes / sensei

includes/class-sensei-wc.php

Spacing +298 added lines, -298 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) exit; // security check, don't load file outside WP
+if ( ! defined('ABSPATH')) exit; // security check, don't load file outside WP
 
 /**
  * Sensei WooCommerce class
@@ -11,16 +11,16 @@ 
  * @since 1.9.0
  */
 
-Class Sensei_WC{
+Class Sensei_WC {
     /**
      * Load the files needed for the woocommerce integration.
      *
      * @since 1.9.0
      */
-    public static function load_woocommerce_integration_hooks(){
+    public static function load_woocommerce_integration_hooks() {
 
-	    $woocommerce_hooks_file_path = Sensei()->plugin_path() . 'includes/hooks/woocommerce.php';
-        require_once( $woocommerce_hooks_file_path );
+	    $woocommerce_hooks_file_path = Sensei()->plugin_path().'includes/hooks/woocommerce.php';
+        require_once($woocommerce_hooks_file_path);
 
     }
     /**
@@ -29,9 +29,9 @@ 
      * @since 1.9.0
      * @return bool
      */
-    public static function is_woocommerce_active(){
+    public static function is_woocommerce_active() {
 
-        $is_woocommerce_enabled_in_settings = isset( Sensei()->settings->settings['woocommerce_enabled'] ) && Sensei()->settings->settings['woocommerce_enabled'];
+        $is_woocommerce_enabled_in_settings = isset(Sensei()->settings->settings['woocommerce_enabled']) && Sensei()->settings->settings['woocommerce_enabled'];
         return self::is_woocommerce_present() && $is_woocommerce_enabled_in_settings;
 
     } // end is_woocommerce_active
@@ -46,19 +46,19 @@ 
      *
      * @return bool
      */
-    public static function is_woocommerce_present(){
+    public static function is_woocommerce_present() {
 
-        $active_plugins = (array) get_option( 'active_plugins', array() );
+        $active_plugins = (array) get_option('active_plugins', array());
 
-        if ( is_multisite() ){
+        if (is_multisite()) {
 
-            $active_plugins = array_merge( $active_plugins, get_site_option( 'active_sitewide_plugins', array() ) );
+            $active_plugins = array_merge($active_plugins, get_site_option('active_sitewide_plugins', array()));
 
         }
 
-        $is_woocommerce_plugin_present_and_activated = in_array( 'woocommerce/woocommerce.php', $active_plugins ) || array_key_exists( 'woocommerce/woocommerce.php', $active_plugins );
+        $is_woocommerce_plugin_present_and_activated = in_array('woocommerce/woocommerce.php', $active_plugins) || array_key_exists('woocommerce/woocommerce.php', $active_plugins);
 
-        return class_exists( 'Woocommerce' ) || $is_woocommerce_plugin_present_and_activated;
+        return class_exists('Woocommerce') || $is_woocommerce_plugin_present_and_activated;
 
     }// end is_woocommerce_present
 
@@ -71,48 +71,48 @@ 
      * @param $course_id
      * @return array $user_course_orders
      */
-    public static function get_learner_course_active_order_id( $user_id, $course_id ){
+    public static function get_learner_course_active_order_id($user_id, $course_id) {
 
-        $course_product_id = get_post_meta( $course_id, '_course_woocommerce_product', true );
+        $course_product_id = get_post_meta($course_id, '_course_woocommerce_product', true);
 
-        $orders_query = new WP_Query( array(
+        $orders_query = new WP_Query(array(
             'post_type'   => 'shop_order',
             'posts_per_page' => -1,
-            'post_status' => array( 'wc-processing', 'wc-completed' ),
+            'post_status' => array('wc-processing', 'wc-completed'),
             'meta_key'=> '_customer_user',
             'meta_value'=> $user_id,
-        ) );
+        ));
 
-        if( $orders_query->post_count == 0 ){
+        if ($orders_query->post_count == 0) {
 
             return false;
 
         }
 
-        foreach( $orders_query->get_posts() as $order ){
+        foreach ($orders_query->get_posts() as $order) {
 
-            $order = new WC_Order( $order->ID );
+            $order = new WC_Order($order->ID);
             $items = $order->get_items();
 
-            $user_orders =  array();
+            $user_orders = array();
 
-            foreach( $items as $item ){
+            foreach ($items as $item) {
 
                 // if the product id on the order and the one given to this function
                 // this order has been placed by the given user on the given course.
-                $product = wc_get_product( $item['product_id'] );
+                $product = wc_get_product($item['product_id']);
 
-                if ( is_object( $product ) && $product->is_type( 'variable' )) {
+                if (is_object($product) && $product->is_type('variable')) {
 
                     $item_product_id = $item['variation_id'];
 
                 } else {
 
-                    $item_product_id =  $item['product_id'];
+                    $item_product_id = $item['product_id'];
 
                 }
 
-                if( $course_product_id == $item_product_id ){
+                if ($course_product_id == $item_product_id) {
 
                     return $order->id;
 
@@ -136,12 +136,12 @@ 
      * @param $filter_links
      * @return mixed
      */
-    public static function add_course_archive_wc_filter_links( $filter_links ){
+    public static function add_course_archive_wc_filter_links($filter_links) {
 
         $free_courses = self::get_free_courses();
         $paid_courses = self::get_paid_courses();
 
-        if ( empty( $free_courses ) || empty( $paid_courses )  ){
+        if (empty($free_courses) || empty($paid_courses)) {
             // do not show any WooCommerce filters if all courses are
             // free or if all courses are paid
             return $filter_links;
@@ -149,15 +149,15 @@ 
         }
 
         $filter_links[] = array(
-            'id'=>'paid' ,
-            'url'=> add_query_arg( array( 'course_filter'=>'paid'), Sensei_Course::get_courses_page_url() ),
-            'title'=>__( 'Paid', 'woothemes-sensei' )
+            'id'=>'paid',
+            'url'=> add_query_arg(array('course_filter'=>'paid'), Sensei_Course::get_courses_page_url()),
+            'title'=>__('Paid', 'woothemes-sensei')
         );
 
         $filter_links[] = array(
             'id'=>'free',
-            'url'=> add_query_arg( array( 'course_filter'=>'free'), Sensei_Course::get_courses_page_url() ),
-            'title'=>__( 'Free', 'woothemes-sensei' )
+            'url'=> add_query_arg(array('course_filter'=>'free'), Sensei_Course::get_courses_page_url()),
+            'title'=>__('Free', 'woothemes-sensei')
         );
 
         return $filter_links;
@@ -174,24 +174,24 @@ 
      * @param WP_Query $query
      * @return WP_Query $query
      */
-    public static function course_archive_wc_filter_free( $query ){
+    public static function course_archive_wc_filter_free($query) {
 
-        if( isset( $_GET['course_filter'] ) && 'free' == $_GET['course_filter']
-            && 'course' == $query->get( 'post_type') && $query->is_main_query()  ){
+        if (isset($_GET['course_filter']) && 'free' == $_GET['course_filter']
+            && 'course' == $query->get('post_type') && $query->is_main_query()) {
 
             // setup the course meta query
             $meta_query = self::get_free_courses_meta_query_args();
 
             // manipulate the query to return free courses
-            $query->set('meta_query', $meta_query );
+            $query->set('meta_query', $meta_query);
 
             // don't show any paid courses
             $courses = self::get_paid_courses();
             $ids = array();
-            foreach( $courses as $course ){
+            foreach ($courses as $course) {
                 $ids[] = $course->ID;
             }
-            $query->set( 'post__not_in', $ids );
+            $query->set('post__not_in', $ids);
 
         }// end if course_filter
 
@@ -210,16 +210,16 @@ 
      * @param WP_Query $query
      * @return WP_Query $query
      */
-    public static function course_archive_wc_filter_paid( $query ){
+    public static function course_archive_wc_filter_paid($query) {
 
-        if( isset( $_GET['course_filter'] ) && 'paid' == $_GET['course_filter']
-            && 'course' == $query->get( 'post_type') && $query->is_main_query() ){
+        if (isset($_GET['course_filter']) && 'paid' == $_GET['course_filter']
+            && 'course' == $query->get('post_type') && $query->is_main_query()) {
 
             // setup the course meta query
             $meta_query = self::get_paid_courses_meta_query_args();
 
             // manipulate the query to return free courses
-            $query->set('meta_query', $meta_query );
+            $query->set('meta_query', $meta_query);
 
         }
 
@@ -232,14 +232,14 @@ 
      * single courses if woocommerce is active allowing purchase
      * information and actions to be hooked from WooCommerce.
      */
-    public static function do_single_course_wc_single_product_action(){
+    public static function do_single_course_wc_single_product_action() {
 
         /**
          * this hooks is documented within the WooCommerce plugin.
          */
-        if ( Sensei_WC::is_woocommerce_active() ) {
+        if (Sensei_WC::is_woocommerce_active()) {
 
-            do_action( 'woocommerce_before_single_product' );
+            do_action('woocommerce_before_single_product');
 
         } // End If Statement
 
@@ -260,12 +260,12 @@ 
      * @param $user_id
      * @return bool
      */
-    public static function alter_can_user_view_lesson ( $can_user_view_lesson, $lesson_id, $user_id  ){
+    public static function alter_can_user_view_lesson($can_user_view_lesson, $lesson_id, $user_id) {
 
 	    // do not override access to admins
-	    $course_id = Sensei()->lesson->get_course_id( $lesson_id );
-	    if ( sensei_all_access() || Sensei_Utils::is_preview_lesson( $lesson_id )
-	         || Sensei_Utils::user_started_course( $course_id, $user_id )  ){
+	    $course_id = Sensei()->lesson->get_course_id($lesson_id);
+	    if (sensei_all_access() || Sensei_Utils::is_preview_lesson($lesson_id)
+	         || Sensei_Utils::user_started_course($course_id, $user_id)) {
 
 			return true;
 
@@ -274,18 +274,18 @@ 
         // check if the course has a valid product attached to it
         // which the user should have purchased if they want to access
         // the current lesson
-        $course_id = get_post_meta( $lesson_id , '_lesson_course', true);
-        $wc_post_id = get_post_meta( $course_id, '_course_woocommerce_product', true );
+        $course_id = get_post_meta($lesson_id, '_lesson_course', true);
+        $wc_post_id = get_post_meta($course_id, '_course_woocommerce_product', true);
         $product = Sensei()->sensei_get_woocommerce_product_object($wc_post_id);
-        if( isset ($product) && is_object($product) ){
+        if (isset ($product) && is_object($product)) {
 
             // valid product found
-            $order_id = self::get_learner_course_active_order_id( $user_id, $course_id );
+            $order_id = self::get_learner_course_active_order_id($user_id, $course_id);
 
             // product has a successful order so this user may access the content
             // this function may only return false or the default
             // returning true may override other negatives which we don't want
-            if( ! $order_id ){
+            if ( ! $order_id) {
 
                 return false;
 
@@ -308,23 +308,23 @@ 
      */
     public static function course_link_from_order( ) {
 
-        if( ! is_order_received_page() ){
+        if ( ! is_order_received_page()) {
             return;
         }
 
-        $order_id = get_query_var( 'order-received' );
-		$order = new WC_Order( $order_id );
+        $order_id = get_query_var('order-received');
+		$order = new WC_Order($order_id);
 
 		// exit early if not wc-completed or wc-processing
-		if( 'wc-completed' != $order->post_status
-            && 'wc-processing' != $order->post_status  ) {
+		if ('wc-completed' != $order->post_status
+            && 'wc-processing' != $order->post_status) {
             return;
         }
 
         $course_links = array(); // store the for links for courses purchased
-		foreach ( $order->get_items() as $item ) {
+		foreach ($order->get_items() as $item) {
 
-            if ( isset( $item['variation_id'] ) && ( 0 < $item['variation_id'] ) ) {
+            if (isset($item['variation_id']) && (0 < $item['variation_id'])) {
 
                 // If item has variation_id then its a variation of the product
                 $item_id = $item['variation_id'];
@@ -336,28 +336,28 @@ 
 
             } // End If Statement
 
-            $user_id = get_post_meta( $order->id, '_customer_user', true );
+            $user_id = get_post_meta($order->id, '_customer_user', true);
 
-            if( $user_id ) {
+            if ($user_id) {
 
                 // Get all courses for product
                 $args = Sensei_Course::get_default_query_args();
-                $args['meta_query'] = array( array(
+                $args['meta_query'] = array(array(
                             'key' => '_course_woocommerce_product',
                             'value' => $item_id
-                        ) );
+                        ));
                 $args['orderby'] = 'menu_order date';
                 $args['order'] = 'ASC';
 
                 // loop through courses
-                $courses = get_posts( $args );
-                if( $courses && count( $courses ) > 0 ) {
+                $courses = get_posts($args);
+                if ($courses && count($courses) > 0) {
 
-                    foreach( $courses as $course ) {
+                    foreach ($courses as $course) {
 
                         $title = $course->post_title;
-                        $permalink = get_permalink( $course->ID );
-                        $course_links[] .= '<a href="' . esc_url( $permalink ) . '" >' . $title . '</a> ';
+                        $permalink = get_permalink($course->ID);
+                        $course_links[] .= '<a href="'.esc_url($permalink).'" >'.$title.'</a> ';
 
                     } // end for each
 
@@ -368,24 +368,24 @@ 
         }// end loop through orders
 
         // add the courses to the WooCommerce notice
-        if( ! empty( $course_links) ){
+        if ( ! empty($course_links)) {
 
             $courses_html = _nx(
                 'You have purchased the following course:',
                 'You have purchased the following courses:',
-                count( $course_links ),
+                count($course_links),
                 'Purchase thank you note on Checkout page. The course link(s) will be show', 'woothemes-sensei'
             );
 
-            foreach( $course_links as $link ){
+            foreach ($course_links as $link) {
 
-                $courses_html .= '<li>' . $link . '</li>';
+                $courses_html .= '<li>'.$link.'</li>';
 
             }
 
             $courses_html .= ' </ul>';
 
-            wc_add_notice( $courses_html, 'success' );
+            wc_add_notice($courses_html, 'success');
         }
 
 	} // end course_link_order_form
@@ -398,20 +398,20 @@ 
      *
      * @since 1.9.0
      */
-    public static function course_in_cart_message(){
+    public static function course_in_cart_message() {
 
         global $post;
 
-        if( self::is_course_in_cart( $post->ID ) ){ ?>
+        if (self::is_course_in_cart($post->ID)) { ?>
 
             <div class="sensei-message info">
                 <?php
 
-                $cart_link =  '<a class="cart-complete" href="' . WC()->cart->get_checkout_url()
-                              . '" title="' . __('complete purchase', 'woothemes-sensei') . '">'
-                              . __('complete the purchase', 'woothemes-sensei') . '</a>';
+                $cart_link = '<a class="cart-complete" href="'.WC()->cart->get_checkout_url()
+                              . '" title="'.__('complete purchase', 'woothemes-sensei').'">'
+                              . __('complete the purchase', 'woothemes-sensei').'</a>';
 
-                echo sprintf(  __('You have already added this Course to your cart. Please %1$s to access the course.', 'woothemes-sensei'), $cart_link );
+                echo sprintf(__('You have already added this Course to your cart. Please %1$s to access the course.', 'woothemes-sensei'), $cart_link);
 
                 ?>
             </div>
@@ -425,14 +425,14 @@ 
      * @param $course_id
      * @return bool
      */
-    public static function is_course_in_cart( $course_id ){
+    public static function is_course_in_cart($course_id) {
 
-        $wc_post_id = absint( get_post_meta( $course_id, '_course_woocommerce_product', true ) );
-        $user_course_status_id = Sensei_Utils::user_started_course( $course_id , get_current_user_id() );
+        $wc_post_id = absint(get_post_meta($course_id, '_course_woocommerce_product', true));
+        $user_course_status_id = Sensei_Utils::user_started_course($course_id, get_current_user_id());
 
-        if ( 0 < intval( $wc_post_id ) && ! $user_course_status_id ) {
+        if (0 < intval($wc_post_id) && ! $user_course_status_id) {
 
-            if ( self::is_product_in_cart( $wc_post_id ) ) {
+            if (self::is_product_in_cart($wc_post_id)) {
 
                 return true;
 
@@ -450,20 +450,20 @@ 
      * @param $product_id
      * @return bool
      */
-    public static function is_product_in_cart( $product_id ){
+    public static function is_product_in_cart($product_id) {
 
-        if ( 0 < $product_id ) {
+        if (0 < $product_id) {
 
-            $product = wc_get_product( $product_id );
+            $product = wc_get_product($product_id);
 
             $parent_id = '';
-            if( isset( $product->variation_id ) && 0 < intval( $product->variation_id ) ) {
+            if (isset($product->variation_id) && 0 < intval($product->variation_id)) {
                 $wc_product_id = $product->parent->id;
             }
-            foreach( WC()->cart->get_cart() as $cart_item_key => $values ) {
+            foreach (WC()->cart->get_cart() as $cart_item_key => $values) {
 
                 $cart_product = $values['data'];
-                if( $product_id == $cart_product->id ) {
+                if ($product_id == $cart_product->id) {
 
                     return true;
 
@@ -485,9 +485,9 @@ 
      *  @type int $wp_post_id
      * }
      */
-    public static function get_free_product_ids(){
+    public static function get_free_product_ids() {
 
-        return  get_posts( array(
+        return  get_posts(array(
             'post_type' => 'product',
             'posts_per_page' => '1000',
             'fields' => 'ids',
@@ -512,7 +512,7 @@ 
      * @since 1.9.0
      * @return array $wp_meta_query_param
      */
-    public static function get_free_courses_meta_query_args(){
+    public static function get_free_courses_meta_query_args() {
 
         return array(
             'relation' => 'OR',
@@ -536,7 +536,7 @@ 
      * @since 1.9.0
      * @return array $wp_query_meta_query_args_param
      */
-    public static function get_paid_courses_meta_query_args(){
+    public static function get_paid_courses_meta_query_args() {
 
         $paid_product_ids = self::get_paid_product_ids();
 
@@ -545,7 +545,7 @@ 
                 'key'     => '_course_woocommerce_product',
                 // when empty we give a false post_id to ensure the caller doesn't get any courses for their
                 // query
-                'value' => empty( $paid_product_ids  )? '-1000' : $paid_product_ids,
+                'value' => empty($paid_product_ids) ? '-1000' : $paid_product_ids,
                 'compare' => 'IN',
             ),
         );
@@ -559,7 +559,7 @@ 
      * @since 1.9.0
      * @return array $product_query_args
      */
-    public static function get_paid_products_on_sale_query_args(){
+    public static function get_paid_products_on_sale_query_args() {
 
         $args = array(
                    'post_type' 		=> 'product',
@@ -569,9 +569,9 @@ 
                    'suppress_filters' 	=> 0
         );
 
-        $args[ 'fields' ]     = 'ids';
+        $args['fields']     = 'ids';
 
-        $args[ 'meta_query' ] = array(
+        $args['meta_query'] = array(
             'relation' => 'AND',
             array(
                 'key'=> '_regular_price',
@@ -598,7 +598,7 @@ 
      *
      * @return array
      */
-    public static function get_paid_products_not_on_sale_query_args(){
+    public static function get_paid_products_not_on_sale_query_args() {
 
         $args = array(
             'post_type' 		=> 'product',
@@ -608,8 +608,8 @@ 
             'suppress_filters' 	=> 0
         );
 
-        $args[ 'fields' ]     = 'ids';
-        $args[ 'meta_query' ] = array(
+        $args['fields']     = 'ids';
+        $args['meta_query'] = array(
             'relation' => 'AND',
             array(
                 'key'=> '_regular_price',
@@ -635,24 +635,24 @@ 
      *
      * @return array $woocommerce_paid_product_ids
      */
-    public static function get_paid_product_ids(){
+    public static function get_paid_product_ids() {
 
         // get all the paid WooCommerce products that has regular
         // and sale price greater than 0
         // will be used later to check for course with the id as meta
-        $paid_product_ids_with_sale =  get_posts( self::get_paid_products_on_sale_query_args() );
+        $paid_product_ids_with_sale = get_posts(self::get_paid_products_on_sale_query_args());
 
         // get all the paid WooCommerce products that has regular price
         // greater than 0 without a sale price
         // will be used later to check for course with the id as meta
-        $paid_product_ids_without_sale = get_posts( self::get_paid_products_not_on_sale_query_args() );
+        $paid_product_ids_without_sale = get_posts(self::get_paid_products_not_on_sale_query_args());
 
         // combine products ID's with regular and sale price grater than zero and those without
         // sale but regular price greater than zero
-        $woocommerce_paid_product_ids = array_merge( $paid_product_ids_with_sale, $paid_product_ids_without_sale );
+        $woocommerce_paid_product_ids = array_merge($paid_product_ids_with_sale, $paid_product_ids_without_sale);
 
         // if
-        if( empty($woocommerce_paid_product_ids) ){
+        if (empty($woocommerce_paid_product_ids)) {
             return array( );
         }
         return $woocommerce_paid_product_ids;
@@ -671,20 +671,20 @@ 
      *
      * @return array
      */
-    public static function get_free_courses(){
+    public static function get_free_courses() {
 
         $free_course_query_args = Sensei_Course::get_default_query_args();
-        $free_course_query_args[ 'meta_query' ] = self::get_free_courses_meta_query_args();
+        $free_course_query_args['meta_query'] = self::get_free_courses_meta_query_args();
 
         // don't show any paid courses
         $courses = self::get_paid_courses();
         $ids = array();
-        foreach( $courses as $course ){
+        foreach ($courses as $course) {
             $ids[] = $course->ID;
         }
-        $free_course_query_args[ 'post__not_in' ] =  $ids;
+        $free_course_query_args['post__not_in'] = $ids;
 
-        return get_posts( $free_course_query_args );
+        return get_posts($free_course_query_args);
 
     }
 
@@ -694,13 +694,13 @@ 
      * @since 1.9.0
      * @return array
      */
-    public static function get_paid_courses(){
+    public static function get_paid_courses() {
 
         $paid_course_query_args = Sensei_Course::get_default_query_args();
 
-        $paid_course_query_args[ 'meta_query' ] = self::get_paid_courses_meta_query_args();
+        $paid_course_query_args['meta_query'] = self::get_paid_courses_meta_query_args();
 
-        return get_posts(  $paid_course_query_args );
+        return get_posts($paid_course_query_args);
     }
 
     /**
@@ -715,17 +715,17 @@ 
      * @param int $course_id
      * @return string $html markup for the button or nothing if user not allowed to buy
      */
-    public static function the_add_to_cart_button_html( $course_id ){
+    public static function the_add_to_cart_button_html($course_id) {
 
-        if ( ! Sensei_Course::is_prerequisite_complete( $course_id )) {
+        if ( ! Sensei_Course::is_prerequisite_complete($course_id)) {
             return '';
         }
 
-        $wc_post_id = self::get_course_product_id( $course_id );
+        $wc_post_id = self::get_course_product_id($course_id);
 
         // Check if customer purchased the product
-        if ( self::has_customer_bought_product(  get_current_user_id(), $wc_post_id )
-            || empty( $wc_post_id ) ) {
+        if (self::has_customer_bought_product(get_current_user_id(), $wc_post_id)
+            || empty($wc_post_id)) {
 
             return '';
 
@@ -733,15 +733,15 @@ 
 
         // based on simple.php in WC templates/single-product/add-to-cart/
         // Get the product
-        $product = self::get_product_object( $wc_post_id );
+        $product = self::get_product_object($wc_post_id);
 
         // do not show the button for invalid products, non purchasable products, out
         // of stock product or if course is already in cart
-        if ( ! isset ( $product )
-            || ! is_object( $product )
+        if ( ! isset ($product)
+            || ! is_object($product)
             || ! $product->is_purchasable()
             || ! $product->is_in_stock()
-            || self::is_course_in_cart( $wc_post_id ) ) {
+            || self::is_course_in_cart($wc_post_id)) {
 
             return '';
 
@@ -752,23 +752,23 @@ 
         //
         ?>
 
-        <form action="<?php echo esc_url( $product->add_to_cart_url() ); ?>"
+        <form action="<?php echo esc_url($product->add_to_cart_url()); ?>"
               class="cart"
               method="post"
               enctype="multipart/form-data">
 
-            <input type="hidden" name="product_id" value="<?php echo esc_attr( $product->id ); ?>" />
+            <input type="hidden" name="product_id" value="<?php echo esc_attr($product->id); ?>" />
 
             <input type="hidden" name="quantity" value="1" />
 
-            <?php if ( isset( $product->variation_id ) && 0 < intval( $product->variation_id ) ) { ?>
+            <?php if (isset($product->variation_id) && 0 < intval($product->variation_id)) { ?>
 
                 <input type="hidden" name="variation_id" value="<?php echo $product->variation_id; ?>" />
-                <?php if( isset( $product->variation_data ) && is_array( $product->variation_data ) && count( $product->variation_data ) > 0 ) { ?>
+                <?php if (isset($product->variation_data) && is_array($product->variation_data) && count($product->variation_data) > 0) { ?>
 
-                    <?php foreach( $product->variation_data as $att => $val ) { ?>
+                    <?php foreach ($product->variation_data as $att => $val) { ?>
 
-                        <input type="hidden" name="<?php echo esc_attr( $att ); ?>" id="<?php echo esc_attr( str_replace( 'attribute_', '', $att ) ); ?>" value="<?php echo esc_attr( $val ); ?>" />
+                        <input type="hidden" name="<?php echo esc_attr($att); ?>" id="<?php echo esc_attr(str_replace('attribute_', '', $att)); ?>" value="<?php echo esc_attr($val); ?>" />
 
                     <?php } ?>
 
@@ -777,7 +777,7 @@ 
             <?php } ?>
 
             <button type="submit" class="single_add_to_cart_button button alt">
-                <?php $button_text = $product->get_price_html() . ' - ' . __( 'Purchase this Course', 'woothemes-sensei' ); ?>
+                <?php $button_text = $product->get_price_html().' - '.__('Purchase this Course', 'woothemes-sensei'); ?>
                 <?php
                 /**
                  * Filter Add to Cart button text
@@ -786,7 +786,7 @@ 
                  *
                  * @param string $button_text
                  */
-                echo apply_filters( 'sensei_wc_single_add_to_cart_button_text', $button_text );
+                echo apply_filters('sensei_wc_single_add_to_cart_button_text', $button_text);
                 ?>
             </button>
 
@@ -806,26 +806,26 @@ 
      *
      * @return string $message
      */
-    public static function alter_no_permissions_message( $message, $post_id ){
+    public static function alter_no_permissions_message($message, $post_id) {
 
-        if( empty( $post_id ) || 'course'!=get_post_type( $post_id ) ){
+        if (empty($post_id) || 'course' != get_post_type($post_id)) {
             return  $message;
         }
 
-        $product_id = self::get_course_product_id( $post_id );
+        $product_id = self::get_course_product_id($post_id);
 
-        if( ! $product_id
-            || ! self::has_customer_bought_product( get_current_user_id(),$product_id ) ){
+        if ( ! $product_id
+            || ! self::has_customer_bought_product(get_current_user_id(), $product_id)) {
 
             return $message;
 
         }
 
         ob_start();
-        self::the_course_no_permissions_message( $post_id );
+        self::the_course_no_permissions_message($post_id);
         $woocommerce_course_no_permissions_message = ob_get_clean();
 
-        return $woocommerce_course_no_permissions_message ;
+        return $woocommerce_course_no_permissions_message;
 
     }
     /**
@@ -834,18 +834,18 @@ 
      *
      * @since 1.9.0
      */
-    public static function the_course_no_permissions_message( $course_id ){
+    public static function the_course_no_permissions_message($course_id) {
 
         // login link
-        $my_courses_page_id = intval( Sensei()->settings->settings[ 'my_course_page' ] );
-	    $login_link =  '<a href="' . esc_url( get_permalink( $my_courses_page_id ) ) . '">' . __( 'log in', 'woothemes-sensei' ) . '</a>';
-	    $wc_product_id =  self::get_course_product_id( $course_id );
+        $my_courses_page_id = intval(Sensei()->settings->settings['my_course_page']);
+	    $login_link = '<a href="'.esc_url(get_permalink($my_courses_page_id)).'">'.__('log in', 'woothemes-sensei').'</a>';
+	    $wc_product_id = self::get_course_product_id($course_id);
 
-	    if ( self::is_product_in_cart( $wc_product_id ) ) {
+	    if (self::is_product_in_cart($wc_product_id)) {
 
-		    $cart_link = '<a href="' . wc_get_checkout_url() . '" title="' . __( 'Checkout','woocommerce' ) . '">' . __( 'checkout', 'woocommerce' ) . '</a>';
+		    $cart_link = '<a href="'.wc_get_checkout_url().'" title="'.__('Checkout', 'woocommerce').'">'.__('checkout', 'woocommerce').'</a>';
 
-		    $message = sprintf( __( 'This course is already in your cart, please proceed to %1$s, to gain access.', 'woothemes-sensei' ), $cart_link );
+		    $message = sprintf(__('This course is already in your cart, please proceed to %1$s, to gain access.', 'woothemes-sensei'), $cart_link);
 		    ?>
 		    <span class="add-to-cart-login">
 		            <?php echo $message; ?>
@@ -853,7 +853,7 @@ 
 
 		    <?php
 
-	    } elseif ( is_user_logged_in() ) {
+	    } elseif (is_user_logged_in()) {
 
 		    ?>
 		    <style>
@@ -866,7 +866,7 @@ 
 
 	    } else {
 
-		    $message = sprintf( __( 'Or %1$s to access your purchased courses', 'woothemes-sensei' ), $login_link );
+		    $message = sprintf(__('Or %1$s to access your purchased courses', 'woothemes-sensei'), $login_link);
 	        ?>
 		        <span class="add-to-cart-login">
 		            <?php echo $message; ?>
@@ -886,34 +886,34 @@ 
      *
      * @return bool
      */
-    public static function has_customer_bought_product ( $user_id, $product_id ){
+    public static function has_customer_bought_product($user_id, $product_id) {
 
-        $orders = self::get_user_product_orders( $user_id, $product_id );
+        $orders = self::get_user_product_orders($user_id, $product_id);
 
-        foreach ( $orders as $order_id ) {
+        foreach ($orders as $order_id) {
 
-            $order = new WC_Order( $order_id->ID );
+            $order = new WC_Order($order_id->ID);
 
             // wc-active is the subscriptions complete status
-            if ( ! in_array( $order->post_status, array( 'wc-processing', 'wc-completed' ) )
-                || ! ( 0 < sizeof( $order->get_items() ) )  ){
+            if ( ! in_array($order->post_status, array('wc-processing', 'wc-completed'))
+                || ! (0 < sizeof($order->get_items()))) {
 
                 continue;
 
             }
 
-            foreach( $order->get_items() as $item ) {
+            foreach ($order->get_items() as $item) {
 
                 // Check if user has bought product
-                if ( $item['product_id'] == $product_id || $item['variation_id'] == $product_id ) {
+                if ($item['product_id'] == $product_id || $item['variation_id'] == $product_id) {
 
                     // Check if user has an active subscription for product
-                    if( class_exists( 'WC_Subscriptions_Manager' ) ) {
-                        $sub_key = wcs_get_subscription( $order );
-                        if( $sub_key ) {
-                            $sub = wcs_get_subscription( $sub_key );
-                            if( $sub && isset( $sub['status'] ) ) {
-                                if( 'active' == $sub['status'] ) {
+                    if (class_exists('WC_Subscriptions_Manager')) {
+                        $sub_key = wcs_get_subscription($order);
+                        if ($sub_key) {
+                            $sub = wcs_get_subscription($sub_key);
+                            if ($sub && isset($sub['status'])) {
+                                if ('active' == $sub['status']) {
                                     return true;
                                 } else {
                                     return false;
@@ -945,11 +945,11 @@ 
      * @return string $woocommerce_product_id or false if none exist
      *
      */
-    public static function get_course_product_id( $course_id ){
+    public static function get_course_product_id($course_id) {
 
-        $product_id =  get_post_meta( $course_id, '_course_woocommerce_product', true );
+        $product_id = get_post_meta($course_id, '_course_woocommerce_product', true);
 
-        if( empty( $product_id ) || 'product' != get_post_type( $product_id ) ){
+        if (empty($product_id) || 'product' != get_post_type($product_id)) {
             return false;
         }
 
@@ -965,11 +965,11 @@ 
      * @param array $classes
      * @return array
      */
-    public static function add_woocommerce_body_class( $classes ){
+    public static function add_woocommerce_body_class($classes) {
 
-        if( ! in_array( 'woocommerce', $classes ) && defined( 'SENSEI_NO_PERMISSION' ) && SENSEI_NO_PERMISSION ){
+        if ( ! in_array('woocommerce', $classes) && defined('SENSEI_NO_PERMISSION') && SENSEI_NO_PERMISSION) {
 
-            $classes[] ='woocommerce';
+            $classes[] = 'woocommerce';
 
         }
 
@@ -987,7 +987,7 @@ 
      *
      * @return  void
      */
-    public static function activate_subscription(  $order ) {
+    public static function activate_subscription($order) {
 
         $order_user = get_user_by('id', $order->user_id);
         $user['ID'] = $order_user->ID;
@@ -996,13 +996,13 @@ 
         $user['user_url'] = $order_user->user_url;
 
         // Run through each product ordered
-        if ( ! sizeof($order->get_items() )>0 ) {
+        if ( ! sizeof($order->get_items()) > 0) {
 
             return;
 
         }
 
-        foreach($order->get_items() as $item) {
+        foreach ($order->get_items() as $item) {
 
             $product_type = '';
 
@@ -1017,21 +1017,21 @@ 
 
             } // End If Statement
 
-            $_product = self::get_product_object( $item_id, $product_type );
+            $_product = self::get_product_object($item_id, $product_type);
 
             // Get courses that use the WC product
             $courses = array();
 
-            if ( ! in_array( $product_type, self::get_subscription_types() ) ) {
+            if ( ! in_array($product_type, self::get_subscription_types())) {
 
-                $courses = Sensei()->course->get_product_courses( $item_id );
+                $courses = Sensei()->course->get_product_courses($item_id);
 
             } // End If Statement
 
             // Loop and add the user to the course.
-            foreach ( $courses as $course_item ){
+            foreach ($courses as $course_item) {
 
-                Sensei_Utils::user_start_course( intval( $user['ID'] ), $course_item->ID  );
+                Sensei_Utils::user_start_course(intval($user['ID']), $course_item->ID);
 
             } // End For Loop
 
@@ -1049,13 +1049,13 @@ 
      *
      * @return  void
      */
-    public static function email_course_details(  $order ){
+    public static function email_course_details($order) {
 
         global $woocommerce;
 
         // exit early if not wc-completed or wc-processing
-        if( 'wc-completed' != $order->post_status
-            && 'wc-processing' != $order->post_status  ) {
+        if ('wc-completed' != $order->post_status
+            && 'wc-processing' != $order->post_status) {
             return;
         }
 
@@ -1063,16 +1063,16 @@ 
         $order_id = $order->id;
 
         //If object have items go through them all to find course
-        if ( 0 < sizeof( $order_items ) ) {
+        if (0 < sizeof($order_items)) {
 
-            $course_details_html =  '<h2>' . __( 'Course details', 'woothemes-sensei' ) . '</h2>';
+            $course_details_html = '<h2>'.__('Course details', 'woothemes-sensei').'</h2>';
             $order_contains_courses = false;
 
 
-            foreach ( $order_items as $item ) {
+            foreach ($order_items as $item) {
 
                 $product_type = '';
-                if ( isset( $item['variation_id'] ) && ( 0 < $item['variation_id'] ) ) {
+                if (isset($item['variation_id']) && (0 < $item['variation_id'])) {
                     // If item has variation_id then its from variation
                     $item_id = $item['variation_id'];
                     $product_type = 'variation';
@@ -1081,9 +1081,9 @@ 
                     $item_id = $item['product_id'];
                 } // End If Statement
 
-                $user_id = get_post_meta( $order_id, '_customer_user', true );
+                $user_id = get_post_meta($order_id, '_customer_user', true);
 
-                if( $user_id ) {
+                if ($user_id) {
 
                     // Get all courses for product
                     $args = array(
@@ -1098,16 +1098,16 @@ 
                         'orderby' => 'menu_order date',
                         'order' => 'ASC',
                     );
-                    $courses = get_posts( $args );
+                    $courses = get_posts($args);
 
-                    if( $courses && count( $courses ) > 0 ) {
+                    if ($courses && count($courses) > 0) {
 
-                        foreach( $courses as $course ) {
+                        foreach ($courses as $course) {
 
                             $title = $course->post_title;
-                            $permalink = get_permalink( $course->ID );
+                            $permalink = get_permalink($course->ID);
                             $order_contains_courses = true;
-                            $course_details_html .=  '<p><strong>' . sprintf( __( 'View course: %1$s', 'woothemes-sensei' ), '</strong><a href="' . esc_url( $permalink ) . '">' . $title . '</a>' ) . '</p>';
+                            $course_details_html .= '<p><strong>'.sprintf(__('View course: %1$s', 'woothemes-sensei'), '</strong><a href="'.esc_url($permalink).'">'.$title.'</a>').'</p>';
                         }
 
 
@@ -1118,7 +1118,7 @@ 
             } // end for each order item
 
             // Output Course details
-            if( $order_contains_courses ){
+            if ($order_contains_courses) {
 
                 echo $course_details_html;
 
@@ -1136,33 +1136,33 @@ 
      * @param   int $order_id WC order ID
      * @return  void
      */
-    public static function complete_order ( $order_id = 0 ) {
+    public static function complete_order($order_id = 0) {
 
         $order_user = array();
 
         // Check for WooCommerce
-        if ( Sensei_WC::is_woocommerce_active() && ( 0 < $order_id ) ) {
+        if (Sensei_WC::is_woocommerce_active() && (0 < $order_id)) {
             // Get order object
-            $order = new WC_Order( $order_id );
+            $order = new WC_Order($order_id);
 
-	        if ( ! in_array( $order->get_status(), array( 'complete', 'processing' ) ) ) {
+	        if ( ! in_array($order->get_status(), array('complete', 'processing'))) {
 
 		        return;
 
 	        }
 
-            $user = get_user_by( 'id', $order->get_user_id() );
+            $user = get_user_by('id', $order->get_user_id());
             $order_user['ID'] = $user->ID;
             $order_user['user_login'] = $user->user_login;
             $order_user['user_email'] = $user->user_email;
             $order_user['user_url'] = $user->user_url;
             // Run through each product ordered
-            if ( 0 < sizeof( $order->get_items() ) ) {
+            if (0 < sizeof($order->get_items())) {
 
-                foreach( $order->get_items() as $item ) {
+                foreach ($order->get_items() as $item) {
 
                     $product_type = '';
-                    if ( isset( $item['variation_id'] ) && ( 0 < $item['variation_id'] ) ) {
+                    if (isset($item['variation_id']) && (0 < $item['variation_id'])) {
 
                         $item_id = $item['variation_id'];
                         $product_type = 'variation';
@@ -1173,15 +1173,15 @@ 
 
                     } // End If Statement
 
-                    $_product = Sensei_WC::get_product_object( $item_id, $product_type );
+                    $_product = Sensei_WC::get_product_object($item_id, $product_type);
 
                     // Get courses that use the WC product
-                    $courses = Sensei()->course->get_product_courses( $_product->id );
+                    $courses = Sensei()->course->get_product_courses($_product->id);
 
                     // Loop and update those courses
-                    foreach ( $courses as $course_item ) {
+                    foreach ($courses as $course_item) {
 
-                        $update_course = self::course_update( $course_item->ID, $order_user );
+                        $update_course = self::course_update($course_item->ID, $order_user);
 
                     } // End For Loop
 
@@ -1189,7 +1189,7 @@ 
 
             } // End If Statement
             // Add meta to indicate that payment has been completed successfully
-            update_post_meta( $order_id, 'sensei_payment_complete', '1' );
+            update_post_meta($order_id, 'sensei_payment_complete', '1');
 
         } // End If Statement
 
@@ -1203,34 +1203,34 @@ 
      * @param   integer| WC_Order $order_id order ID
      * @return  void
      */
-    public static function cancel_order ( $order_id ) {
+    public static function cancel_order($order_id) {
 
 		// Get order object
-		if( is_object( $order_id ) ){
+		if (is_object($order_id)) {
 
 			$order = $order_id;
 
-		}else{
+		} else {
 
-			$order = new WC_Order( $order_id );
+			$order = new WC_Order($order_id);
 		}
 
-		if ( ! in_array( $order->get_status(), array( 'cancelled', 'refunded' ) ) ) {
+		if ( ! in_array($order->get_status(), array('cancelled', 'refunded'))) {
 
 			return;
 
 		}
 
         // Run through each product ordered
-        if ( 0 < sizeof( $order->get_items() ) ) {
+        if (0 < sizeof($order->get_items())) {
 
             // Get order user
-            $user_id = $order->__get( 'user_id' );
+            $user_id = $order->__get('user_id');
 
-            foreach( $order->get_items() as $item ) {
+            foreach ($order->get_items() as $item) {
 
                 $product_type = '';
-                if ( isset( $item['variation_id'] ) && ( 0 < $item['variation_id'] ) ) {
+                if (isset($item['variation_id']) && (0 < $item['variation_id'])) {
 
                     $item_id = $item['variation_id'];
                     $product_type = 'variation';
@@ -1241,20 +1241,20 @@ 
 
                 } // End If Statement
 
-                $_product = Sensei_WC::get_product_object( $item_id, $product_type );
+                $_product = Sensei_WC::get_product_object($item_id, $product_type);
 
                 // Get courses that use the WC product
                 $courses = array();
-                $courses = Sensei()->course->get_product_courses( $item_id );
+                $courses = Sensei()->course->get_product_courses($item_id);
 
                 // Loop and update those courses
-                foreach ($courses as $course_item){
+                foreach ($courses as $course_item) {
 
-	                if( self::has_customer_bought_product( $user_id, $course_item->ID ) ){
+	                if (self::has_customer_bought_product($user_id, $course_item->ID)) {
 		                continue;
 	                }
                     // Check and Remove course from courses user meta
-                    $dataset_changes = Sensei_Utils::sensei_remove_user_from_course( $course_item->ID, $user_id );
+                    $dataset_changes = Sensei_Utils::sensei_remove_user_from_course($course_item->ID, $user_id);
 
                 } // End For Loop
 
@@ -1275,30 +1275,30 @@ 
      * @param   string  $product_type  '' or 'variation'
      * @return   WC_Product $wc_product_object
      */
-    public static function get_product_object ( $wc_product_id = 0, $product_type = '' ) {
+    public static function get_product_object($wc_product_id = 0, $product_type = '') {
 
         $wc_product_object = false;
-        if ( 0 < intval( $wc_product_id ) ) {
+        if (0 < intval($wc_product_id)) {
 
             // Get the product
-            if ( function_exists( 'wc_get_product' ) ) {
+            if (function_exists('wc_get_product')) {
 
-                $wc_product_object = wc_get_product( $wc_product_id ); // Post WC 2.3
+                $wc_product_object = wc_get_product($wc_product_id); // Post WC 2.3
 
-            } elseif ( function_exists( 'get_product' ) ) {
+            } elseif (function_exists('get_product')) {
 
-                $wc_product_object = get_product( $wc_product_id ); // Post WC 2.0
+                $wc_product_object = get_product($wc_product_id); // Post WC 2.0
 
             } else {
 
                 // Pre WC 2.0
-                if ( 'variation' == $product_type || 'subscription_variation' == $product_type ) {
+                if ('variation' == $product_type || 'subscription_variation' == $product_type) {
 
-                    $wc_product_object = new WC_Product_Variation( $wc_product_id );
+                    $wc_product_object = new WC_Product_Variation($wc_product_id);
 
                 } else {
 
-                    $wc_product_object = new WC_Product( $wc_product_id );
+                    $wc_product_object = new WC_Product($wc_product_id);
 
                 } // End If Statement
 
@@ -1321,19 +1321,19 @@ 
      *
      * @return bool|int
      */
-    public static function course_update ( $course_id = 0, $order_user = array()  ) {
+    public static function course_update($course_id = 0, $order_user = array()) {
 
         global $current_user;
 
-        if ( ! isset( $current_user ) || !$current_user->ID > 0 ) return false;
+        if ( ! isset($current_user) || ! $current_user->ID > 0) return false;
 
         $data_update = false;
 
         // Get the product ID
-        $wc_post_id = get_post_meta( intval( $course_id ), '_course_woocommerce_product', true );
+        $wc_post_id = get_post_meta(intval($course_id), '_course_woocommerce_product', true);
 
         // Check if in the admin
-        if ( is_admin() ) {
+        if (is_admin()) {
 
             $user_login = $order_user['user_login'];
             $user_email = $order_user['user_email'];
@@ -1350,28 +1350,28 @@ 
         } // End If Statement
 
         // This doesn't appear to be purely WooCommerce related. Should it be in a separate function?
-        $course_prerequisite_id = (int) get_post_meta( $course_id, '_course_prerequisite', true );
-        if( 0 < absint( $course_prerequisite_id ) ) {
+        $course_prerequisite_id = (int) get_post_meta($course_id, '_course_prerequisite', true);
+        if (0 < absint($course_prerequisite_id)) {
 
-            $prereq_course_complete = Sensei_Utils::user_completed_course( $course_prerequisite_id, intval( $user_id ) );
-            if ( ! $prereq_course_complete ) {
+            $prereq_course_complete = Sensei_Utils::user_completed_course($course_prerequisite_id, intval($user_id));
+            if ( ! $prereq_course_complete) {
 
                 // Remove all course user meta
-                return Sensei_Utils::sensei_remove_user_from_course( $course_id, $user_id );
+                return Sensei_Utils::sensei_remove_user_from_course($course_id, $user_id);
 
             }
         }
 
-        $is_user_taking_course = Sensei_Utils::user_started_course( intval( $course_id ), intval( $user_id ) );
+        $is_user_taking_course = Sensei_Utils::user_started_course(intval($course_id), intval($user_id));
 
         if ( ! $is_user_taking_course
             && Sensei_WC::is_woocommerce_active()
             && 0 < $wc_post_id
-            && Sensei_WC::has_customer_bought_product( $user_id, $wc_post_id ) ) {
+            && Sensei_WC::has_customer_bought_product($user_id, $wc_post_id)) {
 
-	            $activity_logged = Sensei_Utils::user_start_course( intval( $user_id ), intval( $course_id ) );
+	            $activity_logged = Sensei_Utils::user_start_course(intval($user_id), intval($course_id));
 
-	            if ( true == $activity_logged ) {
+	            if (true == $activity_logged) {
 
 		            $is_user_taking_course = true;
 
@@ -1393,14 +1393,14 @@ 
      *
      * @return boolean                 Modified guest checkout setting
      */
-    public static function disable_guest_checkout( $guest_checkout ) {
+    public static function disable_guest_checkout($guest_checkout) {
 
-        if( ! is_admin() || ( defined( 'DOING_AJAX' ) && DOING_AJAX ) ) {
+        if ( ! is_admin() || (defined('DOING_AJAX') && DOING_AJAX)) {
 
-            if( isset( WC()->cart->cart_contents ) && count( WC()->cart->cart_contents ) > 0 ) {
+            if (isset(WC()->cart->cart_contents) && count(WC()->cart->cart_contents) > 0) {
 
-                foreach( WC()->cart->cart_contents as $cart_key => $product ) {
-                    if( isset( $product['product_id'] ) ) {
+                foreach (WC()->cart->cart_contents as $cart_key => $product) {
+                    if (isset($product['product_id'])) {
 
                         $args = array(
                             'posts_per_page' => -1,
@@ -1413,11 +1413,11 @@ 
                             )
                         );
 
-                        $posts = get_posts( $args );
+                        $posts = get_posts($args);
 
-                        if( $posts && count( $posts ) > 0 ) {
+                        if ($posts && count($posts) > 0) {
 
-                            foreach( $posts as $course ) {
+                            foreach ($posts as $course) {
                                 $guest_checkout = '';
                                 break;
 
@@ -1446,23 +1446,23 @@ 
      *
      * @return string
      **/
-    public static function virtual_order_payment_complete( $order_status, $order_id ) {
+    public static function virtual_order_payment_complete($order_status, $order_id) {
 
-        $order = new WC_Order( $order_id );
+        $order = new WC_Order($order_id);
 
-        if ( ! isset ( $order ) ) return '';
+        if ( ! isset ($order)) return '';
 
-        if ( $order_status == 'wc-processing' && ( $order->post_status == 'wc-on-hold' || $order->post_status == 'wc-pending' || $order->post_status == 'wc-failed' ) ) {
+        if ($order_status == 'wc-processing' && ($order->post_status == 'wc-on-hold' || $order->post_status == 'wc-pending' || $order->post_status == 'wc-failed')) {
 
             $virtual_order = true;
 
-            if ( count( $order->get_items() ) > 0 ) {
+            if (count($order->get_items()) > 0) {
 
-                foreach( $order->get_items() as $item ) {
+                foreach ($order->get_items() as $item) {
 
-                    if ( $item['product_id'] > 0 ) {
-                        $_product = $order->get_product_from_item( $item );
-                        if ( ! $_product->is_virtual() ) {
+                    if ($item['product_id'] > 0) {
+                        $_product = $order->get_product_from_item($item);
+                        if ( ! $_product->is_virtual()) {
 
                             $virtual_order = false;
                             break;
@@ -1476,7 +1476,7 @@ 
             } // End If Statement
 
             // virtual order, mark as completed
-            if ( $virtual_order ) {
+            if ($virtual_order) {
 
                 return 'completed';
 
@@ -1499,14 +1499,14 @@ 
      * @param  integer $user_id
      * @return boolean $user_access_permission
      */
-    public static function get_subscription_permission( $user_access_permission, $user_id ){
+    public static function get_subscription_permission($user_access_permission, $user_id) {
 
         global $post;
 
         // ignore the current case if the following conditions are met
-        if ( ! class_exists( 'WC_Subscriptions' ) || empty( $user_id )
-            || ! in_array( $post->post_type, array( 'course','lesson','quiz' ) )
-            || ! wcs_user_has_subscription( $user_id) ){
+        if ( ! class_exists('WC_Subscriptions') || empty($user_id)
+            || ! in_array($post->post_type, array('course', 'lesson', 'quiz'))
+            || ! wcs_user_has_subscription($user_id)) {
 
             return $user_access_permission;
 
@@ -1516,25 +1516,25 @@ 
         // is the subscription on the the current course?
 
         $course_id = 0;
-        if ( 'course' == $post->post_type ){
+        if ('course' == $post->post_type) {
 
             $course_id = $post->ID;
 
-        } elseif ( 'lesson' == $post->post_type ) {
+        } elseif ('lesson' == $post->post_type) {
 
-            $course_id = Sensei()->lesson->get_course_id( $post->ID );
+            $course_id = Sensei()->lesson->get_course_id($post->ID);
 
         } else {
 
-            $lesson_id =  Sensei()->quiz->get_lesson_id( $post->ID );
-            $course_id = Sensei()->lesson->get_course_id( $lesson_id );
+            $lesson_id = Sensei()->quiz->get_lesson_id($post->ID);
+            $course_id = Sensei()->lesson->get_course_id($lesson_id);
 
         }
 
         // if the course has no subscription WooCommerce product attached to return the permissions as is
-        $product_id = Sensei_WC::get_course_product_id( $course_id );
-        $product = wc_get_product( $product_id );
-        if( ! in_array( $product->get_type(), self::get_subscription_types() ) ){
+        $product_id = Sensei_WC::get_course_product_id($course_id);
+        $product = wc_get_product($product_id);
+        if ( ! in_array($product->get_type(), self::get_subscription_types())) {
 
             return $user_access_permission;
 
@@ -1542,19 +1542,19 @@ 
 
         // give access if user has active subscription on the product otherwise restrict it.
         // also check if the user was added to the course directly after the subscription started.
-        if( wcs_user_has_subscription( $user_id, $product_id, 'active'  )
-            || wcs_user_has_subscription( $user_id, $product_id, 'pending-cancel'  )
-            || self::was_user_added_without_subscription( $user_id, $product_id, $course_id  ) ){
+        if (wcs_user_has_subscription($user_id, $product_id, 'active')
+            || wcs_user_has_subscription($user_id, $product_id, 'pending-cancel')
+            || self::was_user_added_without_subscription($user_id, $product_id, $course_id)) {
 
             $user_access_permission = true;
 
-        }else{
+        } else {
 
             $user_access_permission = false;
             // do not show the WC permissions message
-            remove_filter( 'sensei_the_no_permissions_message', array( 'Sensei_WC', 'alter_no_permissions_message' ), 20, 2 );
-            Sensei()->permissions_message['title'] = __( 'No active subscription', 'woothemes-sensei' );
-            Sensei()->permissions_message['message'] = __( 'Sorry, you do not have an access to this content without an active subscription.', 'woothemes-sensei' );
+            remove_filter('sensei_the_no_permissions_message', array('Sensei_WC', 'alter_no_permissions_message'), 20, 2);
+            Sensei()->permissions_message['title'] = __('No active subscription', 'woothemes-sensei');
+            Sensei()->permissions_message['message'] = __('Sorry, you do not have an access to this content without an active subscription.', 'woothemes-sensei');
         }
 
         return $user_access_permission;
@@ -1567,9 +1567,9 @@ 
      * @since 1.9.0
      * @return array
      */
-    public static function get_subscription_types(){
+    public static function get_subscription_types() {
 
-        return array( 'subscription','subscription_variation','variable-subscription' );
+        return array('subscription', 'subscription_variation', 'variable-subscription');
 
     }
 
@@ -1589,15 +1589,15 @@ 
      *
      * @return bool
      */
-    public static function was_user_added_without_subscription($user_id, $product_id, $course_id ){
+    public static function was_user_added_without_subscription($user_id, $product_id, $course_id) {
 
         $course_start_date = '';
         $subscription_start_date = '';
-        $is_a_subscription ='';
+        $is_a_subscription = '';
         $was_user_added_without_subscription = true;
 
         // if user is not on the course they were not added
-        if( ! Sensei_Utils::user_started_course( $course_id, $user_id ) ){
+        if ( ! Sensei_Utils::user_started_course($course_id, $user_id)) {
 
             return false;
 
@@ -1606,34 +1606,34 @@ 
         // if user doesn't have a subscription and is taking the course
         // they were added manually
         if ( ! wcs_user_has_subscription($user_id, $product_id)
-            && Sensei_Utils::user_started_course( $course_id, get_current_user_id() )  ){
+            && Sensei_Utils::user_started_course($course_id, get_current_user_id())) {
 
             return true;
 
         }
 
-        $course_status =  Sensei_Utils::user_course_status( $course_id, $user_id );
+        $course_status = Sensei_Utils::user_course_status($course_id, $user_id);
 
         // comparing dates setup data
-        $course_start_date = date_create( $course_status->comment_date );
-        $subscriptions = wcs_get_users_subscriptions( $user_id );
+        $course_start_date = date_create($course_status->comment_date);
+        $subscriptions = wcs_get_users_subscriptions($user_id);
 
         // comparing every subscription
-        foreach( $subscriptions as $subscription ){
+        foreach ($subscriptions as $subscription) {
 
             // for the following statuses we know the user was not added
             // manually
             $status = $subscription->get_status();
-            if ( in_array( $status, array( 'pending-canceled', 'active', 'on-hold', 'pending' ) ) ) {
+            if (in_array($status, array('pending-canceled', 'active', 'on-hold', 'pending'))) {
 
                 continue;
 
             }
 
-            $current_subscription_start_date = date_create( $subscription->modified_date );
+            $current_subscription_start_date = date_create($subscription->modified_date);
 
             // is the last updated subscription date newer than course start date
-            if (  $current_subscription_start_date > $course_start_date   ) {
+            if ($current_subscription_start_date > $course_start_date) {
 
                 return false;
 
@@ -1652,15 +1652,15 @@ 
 	 *
 	 * @return array $orders
 	 */
-	public static function get_user_product_orders( $user_id =  0, $product_id ) {
+	public static function get_user_product_orders($user_id = 0, $product_id) {
 
-		return get_posts( array(
+		return get_posts(array(
 			'numberposts' => -1,
 			'post_type' => 'shop_order',
 			'meta_key'    => '_customer_user',
-			'meta_value'  => intval( $user_id ),
-			'post_status' => array( 'wc-processing', 'wc-completed' ),
-		) );
+			'meta_value'  => intval($user_id),
+			'post_status' => array('wc-processing', 'wc-completed'),
+		));
 
 	}