285 lines
7.6 KiB
PHP
285 lines
7.6 KiB
PHP
<?php
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/**
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* Contains the main functions for WooCommerce, stores variables, and handles error messages
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*
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* @class woocommerce
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* @package WooCommerce
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* @category Class
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* @author WooThemes
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*/
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class woocommerce {
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private static $_instance;
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private static $_cache;
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public static $errors = array(); // Stores store errors
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public static $messages = array(); // Stores store messages
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public static $attribute_taxonomies; // Stores the attribute taxonomies used in the store
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public static $plugin_url;
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public static $plugin_path;
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/** constructor */
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private function __construct () {
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// Vars
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if (isset($_SESSION['errors'])) self::$errors = $_SESSION['errors'];
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if (isset($_SESSION['messages'])) self::$messages = $_SESSION['messages'];
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unset($_SESSION['messages']);
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unset($_SESSION['errors']);
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// Hooks
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add_filter('wp_redirect', array(&$this, 'redirect'), 1, 2);
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}
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/** get */
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public static function get() {
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if (!isset(self::$_instance)) {
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$c = __CLASS__;
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self::$_instance = new $c;
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}
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return self::$_instance;
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}
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/**
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* Get attribute taxonomies
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*/
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public static function get_attribute_taxonomies() {
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global $wpdb;
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if (!self::$attribute_taxonomies) :
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self::$attribute_taxonomies = $wpdb->get_results("SELECT * FROM ".$wpdb->prefix."woocommerce_attribute_taxonomies;");
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endif;
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return self::$attribute_taxonomies;
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}
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/**
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* Get a product attributes name
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*/
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public static function attribute_name( $name ) {
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return 'pa_'.sanitize_title($name);
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}
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/**
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* Get a product attributes label
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*/
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public static function attribute_label( $name ) {
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global $wpdb;
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$name = $wpdb->prepare(sanitize_title($name));
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$label = $wpdb->get_var("SELECT attribute_label FROM ".$wpdb->prefix."woocommerce_attribute_taxonomies WHERE attribute_name = '$name';");
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if ($label) return $label; else return ucfirst($name);
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}
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/**
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* Get the plugin url
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*
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* @return string url
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*/
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public static function plugin_url() {
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if(self::$plugin_url) return self::$plugin_url;
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if (is_ssl()) :
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return self::$plugin_url = str_replace('http://', 'https://', WP_PLUGIN_URL) . "/" . plugin_basename( dirname(dirname(__FILE__)));
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else :
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return self::$plugin_url = WP_PLUGIN_URL . "/" . plugin_basename( dirname(dirname(__FILE__)));
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endif;
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}
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/**
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* Get the plugin path
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*
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* @return string url
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*/
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public static function plugin_path() {
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if(self::$plugin_path) return self::$plugin_path;
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return self::$plugin_path = WP_PLUGIN_DIR . "/" . plugin_basename( dirname(dirname(__FILE__)));
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}
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/**
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* Return the URL with https if SSL is on
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*
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* @return string url
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*/
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public static function force_ssl( $url ) {
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if (is_ssl()) $url = str_replace('http:', 'https:', $url);
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return $url;
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}
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/**
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* Get a var
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*
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* Variable is filtered by woocommerce_get_var_{var name}
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*
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* @param string var
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* @return string variable
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*/
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public static function get_var($var) {
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$return = '';
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switch ($var) :
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case "version" : $return = WOOCOMMERCE_VERSION; break;
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case "shop_thumbnail_image_width" : $return = get_option('woocommerce_thumbnail_image_width'); break;
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case "shop_thumbnail_image_height" : $return = get_option('woocommerce_thumbnail_image_height'); break;
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case "shop_catalog_image_width" : $return = get_option('woocommerce_catalog_image_width'); break;
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case "shop_catalog_image_height" : $return = get_option('woocommerce_catalog_image_height'); break;
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case "shop_single_image_width" : $return = get_option('woocommerce_single_image_width'); break;
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case "shop_single_image_height" : $return = get_option('woocommerce_single_image_height'); break;
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endswitch;
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return apply_filters( 'woocommerce_get_var_'.$var, $return );
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}
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/**
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* Add an error
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*
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* @param string error
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*/
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function add_error( $error ) { self::$errors[] = $error; }
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/**
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* Add a message
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*
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* @param string message
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*/
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function add_message( $message ) { self::$messages[] = $message; }
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/** Clear messages and errors from the session data */
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function clear_messages() {
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self::$errors = self::$messages = array();
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unset($_SESSION['messages']);
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unset($_SESSION['errors']);
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}
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/**
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* Get error count
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*
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* @return int
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*/
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function error_count() { return sizeof(self::$errors); }
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/**
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* Get message count
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*
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* @return int
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*/
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function message_count() { return sizeof(self::$messages); }
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/**
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* Output the errors and messages
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*
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* @return bool
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*/
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public static function show_messages() {
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if (isset(self::$errors) && sizeof(self::$errors)>0) :
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echo '<div class="woocommerce_error">'.self::$errors[0].'</div>';
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self::clear_messages();
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return true;
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elseif (isset(self::$messages) && sizeof(self::$messages)>0) :
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echo '<div class="woocommerce_message">'.self::$messages[0].'</div>';
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self::clear_messages();
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return true;
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else :
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return false;
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endif;
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}
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public static function nonce_field ($action, $referer = true , $echo = true) {
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$name = '_n';
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$action = 'woocommerce-' . $action;
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return wp_nonce_field($action, $name, $referer, $echo);
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}
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public static function nonce_url ($action, $url = '') {
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$name = '_n';
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$action = 'woocommerce-' . $action;
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$url = add_query_arg( $name, wp_create_nonce( $action ), $url);
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return $url;
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}
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/**
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* Check a nonce and sets woocommerce error in case it is invalid
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* To fail silently, set the error_message to an empty string
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*
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* @param string $name the nonce name
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* @param string $action then nonce action
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* @param string $method the http request method _POST, _GET or _REQUEST
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* @param string $error_message custom error message, or false for default message, or an empty string to fail silently
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*
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* @return bool
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*/
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public static function verify_nonce($action, $method='_POST', $error_message = false) {
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$name = '_n';
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$action = 'woocommerce-' . $action;
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if( $error_message === false ) $error_message = __('Action failed. Please refresh the page and retry.', 'woothemes');
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if(!in_array($method, array('_GET', '_POST', '_REQUEST'))) $method = '_POST';
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/*
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$request = $GLOBALS[$method];
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if ( isset($request[$name]) && wp_verify_nonce($request[$name], $action) ) return true;
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*/
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if ( isset($_REQUEST[$name]) && wp_verify_nonce($_REQUEST[$name], $action) ) return true;
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if( $error_message ) woocommerce::add_error( $error_message );
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return false;
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}
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/**
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* Redirection hook which stores messages into session data
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*
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* @param location
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* @param status
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* @return location
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*/
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function redirect( $location, $status ) {
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$_SESSION['errors'] = self::$errors;
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$_SESSION['messages'] = self::$messages;
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return $location;
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}
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static public function shortcode_wrapper ($function, $atts=array()) {
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if( $content = woocommerce::cache_get( $function . '-shortcode', $atts ) ) return $content;
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ob_start();
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call_user_func($function, $atts);
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return woocommerce::cache( $function . '-shortcode', ob_get_clean(), $atts);
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}
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/**
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* Cache API
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*/
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public static function cache ( $id, $data, $args=array() ) {
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if( ! isset(self::$_cache[ $id ]) ) self::$_cache[ $id ] = array();
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if( empty($args) ) self::$_cache[ $id ][0] = $data;
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else self::$_cache[ $id ][ serialize($args) ] = $data;
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return $data;
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}
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public static function cache_get ( $id, $args=array() ) {
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if( ! isset(self::$_cache[ $id ]) ) return null;
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if( empty($args) && isset(self::$_cache[ $id ][0]) ) return self::$_cache[ $id ][0];
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elseif ( isset(self::$_cache[ $id ][ serialize($args) ] ) ) return self::$_cache[ $id ][ serialize($args) ];
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}
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} |