woothemes / sensei

includes/class-sensei.php

Spacing +231 added lines, -231 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly
+if ( ! defined('ABSPATH')) exit; // Exit if accessed directly
 
 /**
  * Responsible for loading Sensei and setting up the Main WordPress hooks.
@@ -147,22 +147,22 @@ 
      * @param  string $file The base file of the plugin.
      * @since  1.0.0
      */
-    public function __construct ( $file ) {
+    public function __construct($file) {
 
         // Setup object data
         $this->file = $file;
-        $this->plugin_url = trailingslashit( plugins_url( '', $plugin = $file ) );
-        $this->plugin_path = trailingslashit( dirname( $file ) );
-        $this->template_url	= apply_filters( 'sensei_template_url', 'sensei/' );
+        $this->plugin_url = trailingslashit(plugins_url('', $plugin = $file));
+        $this->plugin_path = trailingslashit(dirname($file));
+        $this->template_url = apply_filters('sensei_template_url', 'sensei/');
 
         // Initialize the core Sensei functionality
         $this->init();
 
         // Installation
-        if ( is_admin() && ! defined( 'DOING_AJAX' ) ) $this->install();
+        if (is_admin() && ! defined('DOING_AJAX')) $this->install();
 
         // Run this on activation.
-        register_activation_hook( $this->file, array( $this, 'activation' ) );
+        register_activation_hook($this->file, array($this, 'activation'));
 
         // Image Sizes
         $this->init_image_sizes();
@@ -176,11 +176,11 @@ 
      * Load the foundations of Sensei.
      * @since 1.9.0
      */
-    protected function init(){
+    protected function init() {
 
         // Localisation
         $this->load_plugin_textdomain();
-        add_action( 'init', array( $this, 'load_localisation' ), 0 );
+        add_action('init', array($this, 'load_localisation'), 0);
 
         // Setup settings
         $this->settings = new Sensei_Settings();
@@ -203,12 +203,12 @@ 
      */
     public static function instance() {
 
-        if ( is_null( self::$_instance ) ) {
+        if (is_null(self::$_instance)) {
 
             //Sensei requires a reference to the main Sensei plugin file
-            $sensei_main_plugin_file = dirname ( dirname( __FILE__ ) ) . '/woothemes-sensei.php';
+            $sensei_main_plugin_file = dirname(dirname(__FILE__)).'/woothemes-sensei.php';
 
-            self::$_instance = new self( $sensei_main_plugin_file  );
+            self::$_instance = new self($sensei_main_plugin_file);
 
             // load the global class objects needed throughout Sensei
             self::$_instance->initialize_global_objects();
@@ -227,9 +227,9 @@ 
      *
      * @param $plugin
      */
-    public static function activation_flush_rules( $plugin ){
+    public static function activation_flush_rules($plugin) {
 
-        if( strpos( $plugin, '/woothemes-sensei.php' ) > 0  ){
+        if (strpos($plugin, '/woothemes-sensei.php') > 0) {
 
             flush_rewrite_rules(true);
 
@@ -242,7 +242,7 @@ 
      * @since 1.8.0
      */
     public function __clone() {
-        _doing_it_wrong( __FUNCTION__, __( 'Cheatin&#8217; huh?', 'woothemes-sensei' ), '1.8' );
+        _doing_it_wrong(__FUNCTION__, __('Cheatin&#8217; huh?', 'woothemes-sensei'), '1.8');
     }
 
     /**
@@ -250,7 +250,7 @@ 
      * @since 1.8.0
      */
     public function __wakeup() {
-        _doing_it_wrong( __FUNCTION__, __( 'Cheatin&#8217; huh?', 'woothemes-sensei' ), '1.8' );
+        _doing_it_wrong(__FUNCTION__, __('Cheatin&#8217; huh?', 'woothemes-sensei'), '1.8');
     }
 
     /**
@@ -258,13 +258,13 @@ 
      *
      * @since 1.9.0
      */
-    public function initialize_global_objects(){
+    public function initialize_global_objects() {
 
         // Setup post types.
         $this->post_types = new Sensei_PostTypes();
 
         // Lad the updates class
-        $this->updates = new Sensei_Updates( $this );
+        $this->updates = new Sensei_Updates($this);
 
         // Load Course Results Class
         $this->course_results = new Sensei_Course_Results();
@@ -288,19 +288,19 @@ 
 	    $this->load_modules_class();
 
         // Load Learner Management Functionality
-        $this->learners = new Sensei_Learner_Management( $this->file );
+        $this->learners = new Sensei_Learner_Management($this->file);
 
         // Differentiate between administration and frontend logic.
-        if ( is_admin() ) {
+        if (is_admin()) {
 
             // Load Admin Welcome class
             new Sensei_Welcome();
 
             // Load Admin Class
-            $this->admin = new Sensei_Admin( $this->file );
+            $this->admin = new Sensei_Admin($this->file);
 
             // Load Analysis Reports
-            $this->analysis = new Sensei_Analysis( $this->file );
+            $this->analysis = new Sensei_Analysis($this->file);
 
         } else {
 
@@ -317,10 +317,10 @@ 
         }
 
         // Load Grading Functionality
-        $this->grading = new Sensei_Grading( $this->file );
+        $this->grading = new Sensei_Grading($this->file);
 
         // Load Email Class
-        $this->emails = new Sensei_Emails( $this->file );
+        $this->emails = new Sensei_Emails($this->file);
 
         // Load Learner Profiles Class
         $this->learner_profiles = new Sensei_Learner_Profiles();
@@ -332,24 +332,24 @@ 
      *
      * @since 1.9.0
      */
-    public function load_hooks(){
+    public function load_hooks() {
 
-        add_action( 'widgets_init', array( $this, 'register_widgets' ) );
-        add_action( 'after_setup_theme', array( $this, 'ensure_post_thumbnails_support' ) );
+        add_action('widgets_init', array($this, 'register_widgets'));
+        add_action('after_setup_theme', array($this, 'ensure_post_thumbnails_support'));
 
         // Filter comment counts
-        add_filter( 'wp_count_comments', array( $this, 'sensei_count_comments' ), 10, 2 );
+        add_filter('wp_count_comments', array($this, 'sensei_count_comments'), 10, 2);
 
-        add_action( 'body_class', array( $this, 'body_class' ) );
+        add_action('body_class', array($this, 'body_class'));
 
         // Check for and activate JetPack LaTeX support
-        add_action( 'plugins_loaded', array( $this, 'jetpack_latex_support'), 200 ); // Runs after Jetpack has loaded it's modules
+        add_action('plugins_loaded', array($this, 'jetpack_latex_support'), 200); // Runs after Jetpack has loaded it's modules
 
         // check flush the rewrite rules if the option sensei_flush_rewrite_rules option is 1
-        add_action( 'init', array( $this, 'flush_rewrite_rules'), 101 );
+        add_action('init', array($this, 'flush_rewrite_rules'), 101);
 
         // Add plugin action links filter
-        add_filter( 'plugin_action_links_' . plugin_basename( $this->file ), array( $this, 'plugin_action_links' ) );
+        add_filter('plugin_action_links_'.plugin_basename($this->file), array($this, 'plugin_action_links'));
 
     }
 
@@ -361,7 +361,7 @@ 
      */
     public function run_updates() {
         // Run updates if administrator
-        if ( current_user_can( 'manage_options' ) || current_user_can( 'manage_sensei' ) ) {
+        if (current_user_can('manage_options') || current_user_can('manage_sensei')) {
 
             $this->updates->update();
 
@@ -374,21 +374,21 @@ 
      * @since  1.0.0
      * @return void
      */
-    public function register_widgets () {
+    public function register_widgets() {
         // Widget List (key => value is filename => widget class).
-        $widget_list = apply_filters( 'sensei_registered_widgets_list', array( 	'course-component' 	=> 'Course_Component',
+        $widget_list = apply_filters('sensei_registered_widgets_list', array('course-component' 	=> 'Course_Component',
                 'lesson-component' 	=> 'Lesson_Component',
                 'course-categories' => 'Course_Categories',
-                'category-courses' 	=> 'Category_Courses' )
+                'category-courses' 	=> 'Category_Courses')
         );
-        foreach ( $widget_list as $key => $value ) {
-            if ( file_exists( $this->plugin_path . 'widgets/widget-woothemes-sensei-' . $key  . '.php' ) ) {
-                require_once( $this->plugin_path . 'widgets/widget-woothemes-sensei-' . $key  . '.php' );
-                register_widget( 'WooThemes_Sensei_' . $value . '_Widget' );
+        foreach ($widget_list as $key => $value) {
+            if (file_exists($this->plugin_path.'widgets/widget-woothemes-sensei-'.$key.'.php')) {
+                require_once($this->plugin_path.'widgets/widget-woothemes-sensei-'.$key.'.php');
+                register_widget('WooThemes_Sensei_'.$value.'_Widget');
             }
         } // End For Loop
 
-        do_action( 'sensei_register_widgets' );
+        do_action('sensei_register_widgets');
 
     } // End register_widgets()
 
@@ -398,9 +398,9 @@ 
      * @since  1.0.0
      * @return void
      */
-    public function load_localisation () {
+    public function load_localisation() {
 
-        load_plugin_textdomain( 'woothemes-sensei', false, dirname( plugin_basename( $this->file ) ) . '/lang/' );
+        load_plugin_textdomain('woothemes-sensei', false, dirname(plugin_basename($this->file)).'/lang/');
 
     } // End load_localisation()
 
@@ -410,13 +410,13 @@ 
      * @since   1.0.0
      * @return  void
      */
-    public function load_plugin_textdomain () {
+    public function load_plugin_textdomain() {
 
         $domain = 'woothemes-sensei';
         // The "plugin_locale" filter is also used in load_plugin_textdomain()
-        $locale = apply_filters( 'plugin_locale', get_locale(), $domain );
-        load_textdomain( $domain, WP_LANG_DIR . '/' . $domain . '/' . $domain . '-' . $locale . '.mo' );
-        load_plugin_textdomain( $domain, FALSE, dirname( plugin_basename( $this->file ) ) . '/lang/' );
+        $locale = apply_filters('plugin_locale', get_locale(), $domain);
+        load_textdomain($domain, WP_LANG_DIR.'/'.$domain.'/'.$domain.'-'.$locale.'.mo');
+        load_plugin_textdomain($domain, FALSE, dirname(plugin_basename($this->file)).'/lang/');
 
     } // End load_plugin_textdomain()
 
@@ -426,7 +426,7 @@ 
      * @since  1.0.0
      * @return void
      */
-    public function activation () {
+    public function activation() {
 
         $this->register_plugin_version();
 
@@ -439,10 +439,10 @@ 
      * @since  1.0.0
      * @return void
      */
-    public function install () {
+    public function install() {
 
-        register_activation_hook( $this->file, array( $this, 'activate_sensei' ) );
-        register_activation_hook( $this->file, 'flush_rewrite_rules' );
+        register_activation_hook($this->file, array($this, 'activate_sensei'));
+        register_activation_hook($this->file, 'flush_rewrite_rules');
 
     } // End install()
 
@@ -453,10 +453,10 @@ 
      * @since  1.0.0
      * @return void
      */
-    public function activate_sensei () {
+    public function activate_sensei() {
 
-        update_option( 'skip_install_sensei_pages', 0 );
-        update_option( 'sensei_installed', 1 );
+        update_option('skip_install_sensei_pages', 0);
+        update_option('sensei_installed', 1);
 
     } // End activate_sensei()
 
@@ -466,10 +466,10 @@ 
      * @since  1.0.0
      * @return void
      */
-    private function register_plugin_version () {
-        if ( $this->version != '' ) {
+    private function register_plugin_version() {
+        if ($this->version != '') {
 
-            update_option( 'woothemes-sensei-version', $this->version );
+            update_option('woothemes-sensei-version', $this->version);
 
         }
     } // End register_plugin_version()
@@ -480,9 +480,9 @@ 
      * @since   1.0.1
      * @return  void
      */
-    public function ensure_post_thumbnails_support () {
+    public function ensure_post_thumbnails_support() {
 
-        if ( ! current_theme_supports( 'post-thumbnails' ) ) { add_theme_support( 'post-thumbnails' ); }
+        if ( ! current_theme_supports('post-thumbnails')) { add_theme_support('post-thumbnails'); }
 
     } // End ensure_post_thumbnails_support()
 
@@ -494,10 +494,10 @@ 
      * @return void
      * @deprecated
      */
-    public function template_loader ( $template = '' ) {
+    public function template_loader($template = '') {
 
-        _deprecated_function( 'Sensei()->template_loader', '1.9.0', 'Use Sensei_Templates::template_loader( $template ) instead' );
-        Sensei_Templates::template_loader( $template );
+        _deprecated_function('Sensei()->template_loader', '1.9.0', 'Use Sensei_Templates::template_loader( $template ) instead');
+        Sensei_Templates::template_loader($template);
 
     } // End template_loader()
 
@@ -507,15 +507,15 @@ 
      * @since  1.0.0
      * @return string $sensei_plugin_path
      */
-    public function plugin_path () {
+    public function plugin_path() {
 
-        if ( $this->plugin_path ) {
+        if ($this->plugin_path) {
 
-            $sensei_plugin_path =  $this->plugin_path;
+            $sensei_plugin_path = $this->plugin_path;
 
-        }else{
+        } else {
 
-            $sensei_plugin_path = plugin_dir_path( __FILE__ );
+            $sensei_plugin_path = plugin_dir_path(__FILE__);
 
         }
 
@@ -530,9 +530,9 @@ 
      * @param  string $page
      * @return int
      */
-    public function get_page_id ( $page ) {
-        $page = apply_filters( 'sensei_get_' . esc_attr( $page ) . '_page_id', get_option( 'sensei_' . esc_attr( $page ) . '_page_id' ) );
-        return ( $page ) ? $page : -1;
+    public function get_page_id($page) {
+        $page = apply_filters('sensei_get_'.esc_attr($page).'_page_id', get_option('sensei_'.esc_attr($page).'_page_id'));
+        return ($page) ? $page : -1;
     } // End get_page_id()
 
     /**
@@ -543,48 +543,48 @@ 
      *
      * @return bool
      */
-    public function check_user_permissions ( $page = '' ) {
+    public function check_user_permissions($page = '') {
 
         global $current_user, $post;
 
         $user_allowed = false;
 
-        switch ( $page ) {
+        switch ($page) {
 	        case 'course-single':
 		        // check for prerequisite course or lesson,
-		        $course_prerequisite_id = (int) get_post_meta( $post->ID, '_course_prerequisite', true );
-		        $update_course          = Sensei_WC::course_update( $post->ID );
+		        $course_prerequisite_id = (int) get_post_meta($post->ID, '_course_prerequisite', true);
+		        $update_course          = Sensei_WC::course_update($post->ID);
 
 		        // Count completed lessons
-		        if ( 0 < absint( $course_prerequisite_id ) ) {
+		        if (0 < absint($course_prerequisite_id)) {
 
-			        $prerequisite_complete = Sensei_Utils::user_completed_course( $course_prerequisite_id, $current_user->ID );
+			        $prerequisite_complete = Sensei_Utils::user_completed_course($course_prerequisite_id, $current_user->ID);
 
 		        } else {
 			        $prerequisite_complete = true;
 		        } // End If Statement
 
 		        // Handles restrictions on the course
-		        if ( ( ! $prerequisite_complete && 0 < absint( $course_prerequisite_id ) ) ) {
+		        if (( ! $prerequisite_complete && 0 < absint($course_prerequisite_id))) {
 
 			        $user_allowed = false;
-			        $course_link  = '<a href="' . esc_url( get_permalink( $course_prerequisite_id ) ) . '">' . __( 'course', 'woothemes-sensei' ) . '</a>';
-			        $this->notices->add_notice( sprintf( __( 'Please complete the previous %1$s before taking this course.', 'woothemes-sensei' ), $course_link ), 'info' );
+			        $course_link  = '<a href="'.esc_url(get_permalink($course_prerequisite_id)).'">'.__('course', 'woothemes-sensei').'</a>';
+			        $this->notices->add_notice(sprintf(__('Please complete the previous %1$s before taking this course.', 'woothemes-sensei'), $course_link), 'info');
 
-		        } elseif( Sensei_WC::is_woocommerce_active() && Sensei_WC::is_course_purchasable( $post->ID ) && ! Sensei_Utils::user_started_course( $post->ID, $current_user->ID )  ) {
+		        } elseif (Sensei_WC::is_woocommerce_active() && Sensei_WC::is_course_purchasable($post->ID) && ! Sensei_Utils::user_started_course($post->ID, $current_user->ID)) {
 
-			        $message = sprintf( __( 'Or %1$s login %2$s to access your purchased courses', 'woothemes-sensei' ), '<a href="'.sensei_user_login_url().'">', '</a>' );
-			        $this->notices->add_notice( $message, 'info' );
+			        $message = sprintf(__('Or %1$s login %2$s to access your purchased courses', 'woothemes-sensei'), '<a href="'.sensei_user_login_url().'">', '</a>');
+			        $this->notices->add_notice($message, 'info');
 
 
-		        } elseif ( ! Sensei_Utils::user_started_course( $post->ID, $current_user->ID )  ) {
+		        } elseif ( ! Sensei_Utils::user_started_course($post->ID, $current_user->ID)) {
 
 					// users who haven't started the course are allowed to view it
-			        $user_allowed                         = true;
+			        $user_allowed = true;
 
 
 
-		        } else  {
+		        } else {
 
                     $user_allowed = true;
 
@@ -592,60 +592,60 @@ 
                 break;
             case 'lesson-single':
                 // Check for WC purchase
-                $lesson_course_id = get_post_meta( $post->ID, '_lesson_course',true );
+                $lesson_course_id = get_post_meta($post->ID, '_lesson_course', true);
 
-                $update_course = Sensei_WC::course_update( $lesson_course_id );
-                $is_preview = Sensei_Utils::is_preview_lesson( $post->ID );
+                $update_course = Sensei_WC::course_update($lesson_course_id);
+                $is_preview = Sensei_Utils::is_preview_lesson($post->ID);
 
-                if ( $this->access_settings() && Sensei_Utils::user_started_course( $lesson_course_id, $current_user->ID ) ) {
+                if ($this->access_settings() && Sensei_Utils::user_started_course($lesson_course_id, $current_user->ID)) {
                     $user_allowed = true;
-                } elseif( $this->access_settings() && false == $is_preview ) {
+                } elseif ($this->access_settings() && false == $is_preview) {
 
                     $user_allowed = true;
 
                 } else {
-                    $this->permissions_message['title'] = get_the_title( $post->ID ) . ': ' . __('Restricted Access', 'woothemes-sensei' );
-                    $course_link = '<a href="' . esc_url( get_permalink( $lesson_course_id ) ) . '">' . __( 'course', 'woothemes-sensei' ) . '</a>';
-                    $wc_post_id = get_post_meta( $lesson_course_id, '_course_woocommerce_product',true );
-                    if ( Sensei_WC::is_woocommerce_active() && ( 0 < $wc_post_id ) ) {
-                        if ( $is_preview ) {
-                            $this->permissions_message['message'] = sprintf( __('This is a preview lesson. Please purchase the %1$s to access all lessons.', 'woothemes-sensei' ), $course_link );
+                    $this->permissions_message['title'] = get_the_title($post->ID).': '.__('Restricted Access', 'woothemes-sensei');
+                    $course_link = '<a href="'.esc_url(get_permalink($lesson_course_id)).'">'.__('course', 'woothemes-sensei').'</a>';
+                    $wc_post_id = get_post_meta($lesson_course_id, '_course_woocommerce_product', true);
+                    if (Sensei_WC::is_woocommerce_active() && (0 < $wc_post_id)) {
+                        if ($is_preview) {
+                            $this->permissions_message['message'] = sprintf(__('This is a preview lesson. Please purchase the %1$s to access all lessons.', 'woothemes-sensei'), $course_link);
                         } else {
-                            $this->permissions_message['message'] =  sprintf( __('Please purchase the %1$s before starting this Lesson.', 'woothemes-sensei' ), $course_link );
+                            $this->permissions_message['message'] = sprintf(__('Please purchase the %1$s before starting this Lesson.', 'woothemes-sensei'), $course_link);
                         }
                     } else {
-                        if ( $is_preview ) {
-                            $this->permissions_message['message'] = sprintf( __('This is a preview lesson. Please sign up for the %1$s to access all lessons.', 'woothemes-sensei' ), $course_link );
+                        if ($is_preview) {
+                            $this->permissions_message['message'] = sprintf(__('This is a preview lesson. Please sign up for the %1$s to access all lessons.', 'woothemes-sensei'), $course_link);
                         } else {
                             /** This filter is documented in class-woothemes-sensei-frontend.php */
-                            $this->permissions_message['message'] =  sprintf( __( 'Please sign up for the %1$s before starting the lesson.', 'woothemes-sensei' ), $course_link );
+                            $this->permissions_message['message'] = sprintf(__('Please sign up for the %1$s before starting the lesson.', 'woothemes-sensei'), $course_link);
                         }
                     } // End If Statement
                 } // End If Statement
                 break;
             case 'quiz-single':
-                $lesson_id = get_post_meta( $post->ID, '_quiz_lesson',true );
-                $lesson_course_id = get_post_meta( $lesson_id, '_lesson_course',true );
+                $lesson_id = get_post_meta($post->ID, '_quiz_lesson', true);
+                $lesson_course_id = get_post_meta($lesson_id, '_lesson_course', true);
 
-                $update_course = Sensei_WC::course_update( $lesson_course_id );
-                if ( ( $this->access_settings() && Sensei_Utils::user_started_course( $lesson_course_id, $current_user->ID ) ) || sensei_all_access() ) {
+                $update_course = Sensei_WC::course_update($lesson_course_id);
+                if (($this->access_settings() && Sensei_Utils::user_started_course($lesson_course_id, $current_user->ID)) || sensei_all_access()) {
 
                     // Check for prerequisite lesson for this quiz
-                    $lesson_prerequisite_id = (int) get_post_meta( $lesson_id, '_lesson_prerequisite', true);
-                    $user_lesson_prerequisite_complete = Sensei_Utils::user_completed_lesson( $lesson_prerequisite_id, $current_user->ID);
+                    $lesson_prerequisite_id = (int) get_post_meta($lesson_id, '_lesson_prerequisite', true);
+                    $user_lesson_prerequisite_complete = Sensei_Utils::user_completed_lesson($lesson_prerequisite_id, $current_user->ID);
 
                     // Handle restrictions
-                    if( sensei_all_access() ) {
+                    if (sensei_all_access()) {
 
                         $user_allowed = true;
 
                     } else {
 
-                        if ( 0 < absint( $lesson_prerequisite_id ) && ( !$user_lesson_prerequisite_complete ) ) {
+                        if (0 < absint($lesson_prerequisite_id) && ( ! $user_lesson_prerequisite_complete)) {
 
-                            $this->permissions_message['title'] = get_the_title( $post->ID ) . ': ' . __('Restricted Access', 'woothemes-sensei' );
-                            $lesson_link = '<a href="' . esc_url( get_permalink( $lesson_prerequisite_id ) ) . '">' . __( 'lesson', 'woothemes-sensei' ) . '</a>';
-                            $this->permissions_message['message'] = sprintf( __('Please complete the previous %1$s before taking this Quiz.', 'woothemes-sensei' ), $lesson_link );
+                            $this->permissions_message['title'] = get_the_title($post->ID).': '.__('Restricted Access', 'woothemes-sensei');
+                            $lesson_link = '<a href="'.esc_url(get_permalink($lesson_prerequisite_id)).'">'.__('lesson', 'woothemes-sensei').'</a>';
+                            $this->permissions_message['message'] = sprintf(__('Please complete the previous %1$s before taking this Quiz.', 'woothemes-sensei'), $lesson_link);
 
                         } else {
 
@@ -653,27 +653,27 @@ 
 
                         } // End If Statement
                     } // End If Statement
-                } elseif( $this->access_settings() ) {
+                } elseif ($this->access_settings()) {
                     // Check if the user has started the course
 
-                    if ( is_user_logged_in() && ! Sensei_Utils::user_started_course( $lesson_course_id, $current_user->ID ) && ( isset( $this->settings->settings['access_permission'] ) && ( true == $this->settings->settings['access_permission'] ) ) ) {
+                    if (is_user_logged_in() && ! Sensei_Utils::user_started_course($lesson_course_id, $current_user->ID) && (isset($this->settings->settings['access_permission']) && (true == $this->settings->settings['access_permission']))) {
 
                         $user_allowed = false;
-                        $this->permissions_message['title'] = get_the_title( $post->ID ) . ': ' . __('Restricted Access', 'woothemes-sensei' );
-                        $course_link = '<a href="' . esc_url( get_permalink( $lesson_course_id ) ) . '">' . __( 'course', 'woothemes-sensei' ) . '</a>';
-                        $wc_post_id = get_post_meta( $lesson_course_id, '_course_woocommerce_product',true );
-                        if ( Sensei_WC::is_woocommerce_active() && ( 0 < $wc_post_id ) ) {
-                            $this->permissions_message['message'] = sprintf( __('Please purchase the %1$s before starting this Quiz.', 'woothemes-sensei' ), $course_link );
+                        $this->permissions_message['title'] = get_the_title($post->ID).': '.__('Restricted Access', 'woothemes-sensei');
+                        $course_link = '<a href="'.esc_url(get_permalink($lesson_course_id)).'">'.__('course', 'woothemes-sensei').'</a>';
+                        $wc_post_id = get_post_meta($lesson_course_id, '_course_woocommerce_product', true);
+                        if (Sensei_WC::is_woocommerce_active() && (0 < $wc_post_id)) {
+                            $this->permissions_message['message'] = sprintf(__('Please purchase the %1$s before starting this Quiz.', 'woothemes-sensei'), $course_link);
                         } else {
-                            $this->permissions_message['message'] = sprintf( __('Please sign up for the %1$s before starting this Quiz.', 'woothemes-sensei' ), $course_link );
+                            $this->permissions_message['message'] = sprintf(__('Please sign up for the %1$s before starting this Quiz.', 'woothemes-sensei'), $course_link);
                         } // End If Statement
                     } else {
                         $user_allowed = true;
                     } // End If Statement
                 } else {
-                    $this->permissions_message['title'] = get_the_title( $post->ID ) . ': ' . __('Restricted Access', 'woothemes-sensei' );
-                    $course_link = '<a href="' . esc_url( get_permalink( get_post_meta( get_post_meta( $post->ID, '_quiz_lesson', true ), '_lesson_course', true ) ) ) . '">' . __( 'course', 'woothemes-sensei' ) . '</a>';
-                    $this->permissions_message['message'] = sprintf( __('Please sign up for the %1$s before taking this Quiz.', 'woothemes-sensei' ), $course_link );
+                    $this->permissions_message['title'] = get_the_title($post->ID).': '.__('Restricted Access', 'woothemes-sensei');
+                    $course_link = '<a href="'.esc_url(get_permalink(get_post_meta(get_post_meta($post->ID, '_quiz_lesson', true), '_lesson_course', true))).'">'.__('course', 'woothemes-sensei').'</a>';
+                    $this->permissions_message['message'] = sprintf(__('Please sign up for the %1$s before taking this Quiz.', 'woothemes-sensei'), $course_link);
                 } // End If Statement
                 break;
             default:
@@ -695,11 +695,11 @@ 
          * }
          * @param string $post_id
          */
-        $this->permissions_message = apply_filters( 'sensei_permissions_message', $this->permissions_message, $post->ID );
+        $this->permissions_message = apply_filters('sensei_permissions_message', $this->permissions_message, $post->ID);
 
 		// add the permissions message to the stack
 
-        if( sensei_all_access() || Sensei_Utils::is_preview_lesson( $post->ID ) ) {
+        if (sensei_all_access() || Sensei_Utils::is_preview_lesson($post->ID)) {
             $user_allowed = true;
         }
 
@@ -713,7 +713,7 @@ 
          * @param integer $user_id
          *
          */
-        return apply_filters( 'sensei_access_permissions', $user_allowed, $current_user->ID );
+        return apply_filters('sensei_access_permissions', $user_allowed, $current_user->ID);
 
     } // End get_placeholder_image()
 
@@ -724,12 +724,12 @@ 
      * @access public
      * @return bool
      */
-    public function access_settings () {
+    public function access_settings() {
 
-        if( sensei_all_access() ) return true;
+        if (sensei_all_access()) return true;
 
-        if ( isset( $this->settings->settings['access_permission'] ) && ( true == $this->settings->settings['access_permission'] ) ) {
-            if ( is_user_logged_in() ) {
+        if (isset($this->settings->settings['access_permission']) && (true == $this->settings->settings['access_permission'])) {
+            if (is_user_logged_in()) {
                 return true;
             } else {
                 return false;
@@ -745,9 +745,9 @@ 
      * @access  public
      * @return  void
      */
-    public function load_class ( $class_name = '' ) {
-        if ( '' != $class_name && '' != $this->token ) {
-            require_once( 'class-' . esc_attr( $this->token ) . '-' . esc_attr( $class_name ) . '.php' );
+    public function load_class($class_name = '') {
+        if ('' != $class_name && '' != $this->token) {
+            require_once('class-'.esc_attr($this->token).'-'.esc_attr($class_name).'.php');
         } // End If Statement
     } // End load_class()
 
@@ -759,44 +759,44 @@ 
      * @param  integer $post_id
      * @return array
      */
-    public function sensei_count_comments( $comments, $post_id ) {
+    public function sensei_count_comments($comments, $post_id) {
         global $wpdb;
 
         $post_id = (int) $post_id;
 
         $count = wp_cache_get("comments-{$post_id}", 'counts');
 
-        if ( false !== $count ) {
+        if (false !== $count) {
             return $count;
         }
 
-        $statuses = array( '' ); // Default to the WP normal comments
-        $stati = $wpdb->get_results( "SELECT comment_type FROM {$wpdb->comments} GROUP BY comment_type", ARRAY_A );
-        foreach ( (array) $stati AS $status ) {
-            if ( 'sensei_' != substr($status['comment_type'], 0, 7 ) ) {
+        $statuses = array(''); // Default to the WP normal comments
+        $stati = $wpdb->get_results("SELECT comment_type FROM {$wpdb->comments} GROUP BY comment_type", ARRAY_A);
+        foreach ((array) $stati AS $status) {
+            if ('sensei_' != substr($status['comment_type'], 0, 7)) {
                 $statuses[] = $status['comment_type'];
             }
         }
-        $where = "WHERE comment_type IN ('" . join("', '", array_unique( $statuses ) ) . "')";
+        $where = "WHERE comment_type IN ('".join("', '", array_unique($statuses))."')";
 
-        if ( $post_id > 0 )
-            $where .= $wpdb->prepare( " AND comment_post_ID = %d", $post_id );
+        if ($post_id > 0)
+            $where .= $wpdb->prepare(" AND comment_post_ID = %d", $post_id);
 
-        $count = $wpdb->get_results( "SELECT comment_approved, COUNT( * ) AS num_comments FROM {$wpdb->comments} {$where} GROUP BY comment_approved", ARRAY_A );
+        $count = $wpdb->get_results("SELECT comment_approved, COUNT( * ) AS num_comments FROM {$wpdb->comments} {$where} GROUP BY comment_approved", ARRAY_A);
 
         $total = 0;
         $approved = array('0' => 'moderated', '1' => 'approved', 'spam' => 'spam', 'trash' => 'trash', 'post-trashed' => 'post-trashed');
-        foreach ( (array) $count as $row ) {
+        foreach ((array) $count as $row) {
             // Don't count post-trashed toward totals
-            if ( 'post-trashed' != $row['comment_approved'] && 'trash' != $row['comment_approved'] )
+            if ('post-trashed' != $row['comment_approved'] && 'trash' != $row['comment_approved'])
                 $total += $row['num_comments'];
-            if ( isset( $approved[$row['comment_approved']] ) )
+            if (isset($approved[$row['comment_approved']]))
                 $stats[$approved[$row['comment_approved']]] = $row['num_comments'];
         }
 
         $stats['total_comments'] = $total;
-        foreach ( $approved as $key ) {
-            if ( empty($stats[$key]) )
+        foreach ($approved as $key) {
+            if (empty($stats[$key]))
                 $stats[$key] = 0;
         }
 
@@ -814,15 +814,15 @@ 
      * @return void
      */
     public function init_image_sizes() {
-        $course_archive_thumbnail 	= $this->get_image_size( 'course_archive_image' );
-        $course_single_thumbnail	= $this->get_image_size( 'course_single_image' );
-        $lesson_archive_thumbnail 	= $this->get_image_size( 'lesson_archive_image' );
-        $lesson_single_thumbnail	= $this->get_image_size( 'lesson_single_image' );
-
-        add_image_size( 'course_archive_thumbnail', $course_archive_thumbnail['width'], $course_archive_thumbnail['height'], $course_archive_thumbnail['crop'] );
-        add_image_size( 'course_single_thumbnail', $course_single_thumbnail['width'], $course_single_thumbnail['height'], $course_single_thumbnail['crop'] );
-        add_image_size( 'lesson_archive_thumbnail', $lesson_archive_thumbnail['width'], $lesson_archive_thumbnail['height'], $lesson_archive_thumbnail['crop'] );
-        add_image_size( 'lesson_single_thumbnail', $lesson_single_thumbnail['width'], $lesson_single_thumbnail['height'], $lesson_single_thumbnail['crop'] );
+        $course_archive_thumbnail 	= $this->get_image_size('course_archive_image');
+        $course_single_thumbnail	= $this->get_image_size('course_single_image');
+        $lesson_archive_thumbnail 	= $this->get_image_size('lesson_archive_image');
+        $lesson_single_thumbnail	= $this->get_image_size('lesson_single_image');
+
+        add_image_size('course_archive_thumbnail', $course_archive_thumbnail['width'], $course_archive_thumbnail['height'], $course_archive_thumbnail['crop']);
+        add_image_size('course_single_thumbnail', $course_single_thumbnail['width'], $course_single_thumbnail['height'], $course_single_thumbnail['crop']);
+        add_image_size('lesson_archive_thumbnail', $lesson_archive_thumbnail['width'], $lesson_archive_thumbnail['height'], $lesson_archive_thumbnail['crop']);
+        add_image_size('lesson_single_thumbnail', $lesson_single_thumbnail['width'], $lesson_single_thumbnail['height'], $lesson_single_thumbnail['crop']);
     }
 
     /**
@@ -835,37 +835,37 @@ 
      * @param mixed $image_size
      * @return string
      */
-    public function get_image_size( $image_size ) {
+    public function get_image_size($image_size) {
 
         // Only return sizes we define in settings
-        if ( ! in_array( $image_size, array( 'course_archive_image', 'course_single_image', 'lesson_archive_image', 'lesson_single_image' ) ) )
-            return apply_filters( 'sensei_get_image_size_' . $image_size, '' );
+        if ( ! in_array($image_size, array('course_archive_image', 'course_single_image', 'lesson_archive_image', 'lesson_single_image')))
+            return apply_filters('sensei_get_image_size_'.$image_size, '');
 
-        if( ! isset( $this->settings->settings[ $image_size . '_width' ] ) ) {
-            $this->settings->settings[ $image_size . '_width' ] = false;
+        if ( ! isset($this->settings->settings[$image_size.'_width'])) {
+            $this->settings->settings[$image_size.'_width'] = false;
         }
-        if( ! isset( $this->settings->settings[ $image_size . '_height' ] ) ) {
-            $this->settings->settings[ $image_size . '_height' ] = false;
+        if ( ! isset($this->settings->settings[$image_size.'_height'])) {
+            $this->settings->settings[$image_size.'_height'] = false;
         }
-        if( ! isset( $this->settings->settings[ $image_size . '_hard_crop' ] ) ) {
-            $this->settings->settings[ $image_size . '_hard_crop' ] = false;
+        if ( ! isset($this->settings->settings[$image_size.'_hard_crop'])) {
+            $this->settings->settings[$image_size.'_hard_crop'] = false;
         }
 
-        $size = array_filter( array(
-            'width' => $this->settings->settings[ $image_size . '_width' ],
-            'height' => $this->settings->settings[ $image_size . '_height' ],
-            'crop' => $this->settings->settings[ $image_size . '_hard_crop' ]
-        ) );
+        $size = array_filter(array(
+            'width' => $this->settings->settings[$image_size.'_width'],
+            'height' => $this->settings->settings[$image_size.'_height'],
+            'crop' => $this->settings->settings[$image_size.'_hard_crop']
+        ));
 
-        $size['width'] 	= isset( $size['width'] ) ? $size['width'] : '100';
-        $size['height'] = isset( $size['height'] ) ? $size['height'] : '100';
-        $size['crop'] 	= isset( $size['crop'] ) ? $size['crop'] : 0;
+        $size['width'] 	= isset($size['width']) ? $size['width'] : '100';
+        $size['height'] = isset($size['height']) ? $size['height'] : '100';
+        $size['crop'] = isset($size['crop']) ? $size['crop'] : 0;
 
-        return apply_filters( 'sensei_get_image_size_' . $image_size, $size );
+        return apply_filters('sensei_get_image_size_'.$image_size, $size);
     }
 
-    public function body_class( $classes ) {
-        if( is_sensei() ) {
+    public function body_class($classes) {
+        if (is_sensei()) {
             $classes[] = 'sensei';
         }
         return $classes;
@@ -878,9 +878,9 @@ 
      * @since 1.7.0
      */
     public function jetpack_latex_support() {
-        if ( function_exists( 'latex_markup') ) {
-            add_filter( 'sensei_question_title', 'latex_markup' );
-            add_filter( 'sensei_answer_text', 'latex_markup' );
+        if (function_exists('latex_markup')) {
+            add_filter('sensei_question_title', 'latex_markup');
+            add_filter('sensei_answer_text', 'latex_markup');
         }
     }
 
@@ -892,21 +892,21 @@ 
      *
      * @since 1.8.0
      */
-    public function load_modules_class(){
+    public function load_modules_class() {
         global $sensei_modules;
 
-        if( !class_exists( 'Sensei_Modules' )
-            &&  'Sensei_Modules' != get_class( $sensei_modules ) ) {
+        if ( ! class_exists('Sensei_Modules')
+            &&  'Sensei_Modules' != get_class($sensei_modules)) {
 
             //Load the modules class
-            require_once( 'class-sensei-modules.php');
-            Sensei()->modules = new Sensei_Core_Modules( $this->file );
+            require_once('class-sensei-modules.php');
+            Sensei()->modules = new Sensei_Core_Modules($this->file);
 
-        }else{
+        } else {
             // fallback for people still using the modules extension.
             global $sensei_modules;
             Sensei()->modules = $sensei_modules;
-            add_action( 'admin_notices', array( $this, 'disable_sensei_modules_extension'), 30 );
+            add_action('admin_notices', array($this, 'disable_sensei_modules_extension'), 30);
         }
     }
 
@@ -915,12 +915,12 @@ 
      *
      * @since 1.8.0
      */
-    public function disable_sensei_modules_extension(){ ?>
+    public function disable_sensei_modules_extension() { ?>
         <div class="notice updated fade">
             <p>
                 <?php
                 $plugin_manage_url = admin_url().'plugins.php#sensei-modules';
-                $plugin_link_element = '<a href="' . $plugin_manage_url . '" >plugins page</a> ';
+                $plugin_link_element = '<a href="'.$plugin_manage_url.'" >plugins page</a> ';
                 ?>
                 <strong> Modules are now included in Sensei,</strong> so you no longer need the Sensei Modules extension.
                 Please deactivate and delete it from your <?php echo $plugin_link_element; ?>. (This will not affect your existing modules).
@@ -938,18 +938,18 @@ 
      *
      * @since 1.9.0
      */
-    public function flush_rewrite_rules(){
+    public function flush_rewrite_rules() {
 
         // ensures that the rewrite rules are flushed on the second
         // attempt. This ensure that the settings for any other process
         // have been completed and saved to the database before we refresh the
         // rewrite rules.
-        $option =  get_option('sensei_flush_rewrite_rules');
-        if( '1' == $option ) {
+        $option = get_option('sensei_flush_rewrite_rules');
+        if ('1' == $option) {
 
             update_option('sensei_flush_rewrite_rules', '2');
 
-        }elseif( '2' == $option ) {
+        }elseif ('2' == $option) {
 
             flush_rewrite_rules();
             update_option('sensei_flush_rewrite_rules', '0');
@@ -964,7 +964,7 @@ 
      *
      * @since 1.9.0
      */
-    public function initiate_rewrite_rules_flush(){
+    public function initiate_rewrite_rules_flush() {
 
         update_option('sensei_flush_rewrite_rules', '1');
 
@@ -981,9 +981,9 @@ 
      *
      * @return  void
      */
-    public function sensei_woocommerce_email_course_details( $order ) {
+    public function sensei_woocommerce_email_course_details($order) {
 
-        Sensei_WC::email_course_details( $order );
+        Sensei_WC::email_course_details($order);
 
     } // end func email course details
 
@@ -992,9 +992,9 @@ 
      * @param $user_id
      * @param $subscription_key
      */
-    public function sensei_woocommerce_reactivate_subscription( $user_id, $subscription_key ){
+    public function sensei_woocommerce_reactivate_subscription($user_id, $subscription_key) {
 
-        Sensei_WC::reactivate_subscription( $user_id, $subscription_key );
+        Sensei_WC::reactivate_subscription($user_id, $subscription_key);
     }
 
     /**
@@ -1002,9 +1002,9 @@ 
      * @param $user_id
      * @param $subscription_key
      */
-    public function sensei_woocommerce_subscription_ended( $user_id, $subscription_key ){
+    public function sensei_woocommerce_subscription_ended($user_id, $subscription_key) {
 
-        Sensei_WC::end_subscription( $user_id, $subscription_key );
+        Sensei_WC::end_subscription($user_id, $subscription_key);
     }
 
     /**
@@ -1017,9 +1017,9 @@ 
      *
      * @return  void
      */
-    public function sensei_woocommerce_complete_order ( $order_id = 0 ) {
+    public function sensei_woocommerce_complete_order($order_id = 0) {
 
-        Sensei_WC::complete_order( $order_id );
+        Sensei_WC::complete_order($order_id);
 
     } // End sensei_woocommerce_complete_order()
 
@@ -1032,9 +1032,9 @@ 
      * @param   integer $order_id order ID
      * @return  void
      */
-    public function sensei_woocommerce_cancel_order ( $order_id ) {
+    public function sensei_woocommerce_cancel_order($order_id) {
 
-        Sensei_WC::cancel_order( $order_id );
+        Sensei_WC::cancel_order($order_id);
 
     } // End sensei_woocommerce_cancel_order()
 
@@ -1046,9 +1046,9 @@ 
      * @param   integer $order_id order ID
      * @return  void
      */
-    public function sensei_activate_subscription(  $order_id = 0 ) {
+    public function sensei_activate_subscription($order_id = 0) {
 
-        Sensei_WC::activate_subscription( $order_id );
+        Sensei_WC::activate_subscription($order_id);
 
     } // End sensei_activate_subscription()
 
@@ -1060,9 +1060,9 @@ 
      * @param  array/Object $order_user (default: array()) Specific user's data.
      * @return bool|int
      */
-    public function woocommerce_course_update ( $course_id = 0, $order_user = array()  ) {
+    public function woocommerce_course_update($course_id = 0, $order_user = array()) {
 
-        return Sensei_WC::course_update( $course_id, $order_user );
+        return Sensei_WC::course_update($course_id, $order_user);
 
     } // End woocommerce_course_update()
 
@@ -1079,9 +1079,9 @@ 
      *
      * @return   WC_Product $wc_product_object
      */
-    public function sensei_get_woocommerce_product_object ( $wc_product_id = 0, $product_type = '' ) {
+    public function sensei_get_woocommerce_product_object($wc_product_id = 0, $product_type = '') {
 
-        return Sensei_WC::get_product_object( $wc_product_id, $product_type );
+        return Sensei_WC::get_product_object($wc_product_id, $product_type);
 
     } // End sensei_get_woocommerce_product_object()
 
@@ -1103,9 +1103,9 @@ 
      * @param  boolean $guest_checkout Current guest checkout setting
      * @return boolean                 Modified guest checkout setting
      */
-    public function disable_guest_checkout( $guest_checkout ) {
+    public function disable_guest_checkout($guest_checkout) {
 
-        return Sensei_WC::disable_guest_checkout( $guest_checkout );
+        return Sensei_WC::disable_guest_checkout($guest_checkout);
 
     }// end disable_guest_checkout
 
@@ -1119,9 +1119,9 @@ 
      * @param int $order_id
      * @return string
      **/
-    public function virtual_order_payment_complete( $order_status, $order_id ) {
+    public function virtual_order_payment_complete($order_status, $order_id) {
 
-        return  Sensei_WC::virtual_order_payment_complete( $order_status, $order_id );
+        return  Sensei_WC::virtual_order_payment_complete($order_status, $order_id);
     }
 
     /**
@@ -1130,28 +1130,28 @@ 
          * @param   mixed $actions Plugin Actions Links
          * @return  array
          */
-        public function plugin_action_links( $actions ) {
+        public function plugin_action_links($actions) {
 
             $custom_actions = array();
 
             // settings url(s)
-            if ( $this->get_settings_link( $this->get_id() ) ) {
-                $custom_actions['configure'] = $this->get_settings_link( $this->get_id() );
+            if ($this->get_settings_link($this->get_id())) {
+                $custom_actions['configure'] = $this->get_settings_link($this->get_id());
             }
 
             // documentation url if any
-            if ( $this->get_documentation_url() ) {
+            if ($this->get_documentation_url()) {
                 /* translators: Docs as in Documentation */
-                $custom_actions['docs'] = sprintf( '<a href="%s" target="_blank">%s</a>', $this->get_documentation_url(), esc_html__( 'Docs', 'woothemes-sensei' ) );
+                $custom_actions['docs'] = sprintf('<a href="%s" target="_blank">%s</a>', $this->get_documentation_url(), esc_html__('Docs', 'woothemes-sensei'));
             }
 
             // support url if any
-            if ( $this->get_support_url() ) {
-                $custom_actions['support'] = sprintf( '<a href="%s" target="_blank">%s</a>', $this->get_support_url(), esc_html_x( 'Support', 'noun', 'woothemes-sensei' ) );
+            if ($this->get_support_url()) {
+                $custom_actions['support'] = sprintf('<a href="%s" target="_blank">%s</a>', $this->get_support_url(), esc_html_x('Support', 'noun', 'woothemes-sensei'));
             }
 
             // add the links to the front of the actions list   
-            return array_merge( $custom_actions, $actions );
+            return array_merge($custom_actions, $actions);
         }
 
         /**
@@ -1160,10 +1160,10 @@ 
          *
          * @return string plugin configure link
          */
-        public function get_settings_link( $plugin_id = null ) {
-            $settings_url = $this->get_settings_url( $plugin_id );
-            if ( $settings_url ) {
-                return sprintf( '<a href="%s">%s</a>', $settings_url, esc_html_x( 'Configure', 'plugin action link', 'woothemes-sensei' ) );
+        public function get_settings_link($plugin_id = null) {
+            $settings_url = $this->get_settings_url($plugin_id);
+            if ($settings_url) {
+                return sprintf('<a href="%s">%s</a>', $settings_url, esc_html_x('Configure', 'plugin action link', 'woothemes-sensei'));
             }
 
             // no settings
@@ -1175,8 +1175,8 @@ 
          *
          * @return string plugin settings URL
          */
-        public function get_settings_url( $plugin_id = null ) {
-            return admin_url( 'admin.php?page=woothemes-sensei-settings&tab=general' );
+        public function get_settings_url($plugin_id = null) {
+            return admin_url('admin.php?page=woothemes-sensei-settings&tab=general');
         }
 
         /**
@@ -1185,7 +1185,7 @@ 
          * @return string documentation URL
          */
         public function get_documentation_url() {
-            return sprintf( 'https://docs.woothemes.com/documentation/plugins/sensei/' );
+            return sprintf('https://docs.woothemes.com/documentation/plugins/sensei/');
         }
 
         /**
@@ -1212,7 +1212,7 @@ 
          * @return boolean true if the current page is the admin general configuration page
          */
         public function is_general_configuration_page() {
-            return isset( $_GET['page'] ) && 'woothemes-sensei-settings' == $_GET['page'] && ( ! isset( $_GET['tab'] ) || 'general' == $_GET['tab'] );
+            return isset($_GET['page']) && 'woothemes-sensei-settings' == $_GET['page'] && ( ! isset($_GET['tab']) || 'general' == $_GET['tab']);
         }
 
 
@@ -1222,7 +1222,7 @@ 
          * @return string admin configuration url for the admin general configuration page
          */
         public function get_general_configuration_url() {
-            return admin_url( 'admin.php?page=woothemes-sensei-settings&tab=general' );
+            return admin_url('admin.php?page=woothemes-sensei-settings&tab=general');
         }
 
 } // End Class
@@ -1232,4 +1232,4 @@ 
  * @ignore only for backward compatibility
  * @since 1.9.0
  */
-class Woothemes_Sensei extends Sensei_Main{ }
+class Woothemes_Sensei extends Sensei_Main { }