'; } unset($_GET['destination']); drupal_goto($url); } } // Confirm with the user if the form contains a destructive action. $items = uc_cart_get_contents(); if (variable_get('uc_cart_links_empty', TRUE) && !empty($items)) { $actions = explode('-', urldecode($cart_actions)); foreach ($actions as $action) { $action = drupal_substr($action, 0, 1); if ($action == 'e' || $action == 'E') { return confirm_form(array(), t('The current contents of your shopping cart will be lost. Are you sure you want to continue?'), variable_get('uc_cart_links_invalid_page', '')); } } } // No destructive actions, so process the link immediately. uc_cart_links_process($cart_actions); } /** * Submit handler for uc_cart_links_form(). * * @see uc_cart_links_form() */ function uc_cart_links_form_submit($form, &$form_state) { uc_cart_links_process(arg(2)); } /** * Processes a Cart Link to fiddle with the cart and redirect the user. * * @param $cart_actions * A Cart Link URL is structured like "/cart/add/$cart_actions". */ function uc_cart_links_process($cart_actions) { $actions = explode('-', urldecode($cart_actions)); $rebuild_cart = FALSE; $messages = array(); $id = t('(not specified)'); foreach ($actions as $action) { switch (drupal_substr($action, 0, 1)) { // Set the ID of the Cart Link. case 'i': case 'I': $id = drupal_substr($action, 1); break; // Add a product to the cart. case 'p': case 'P': // Set the default product variables. $p = array('nid' => 0, 'qty' => 1, 'data' => array()); $msg = TRUE; // Parse the product action to adjust the product variables. $parts = explode('_', $action); foreach ($parts as $part) { switch (drupal_substr($part, 0, 1)) { // Set the product node ID: p23 case 'p': case 'P': $p['nid'] = intval(drupal_substr($part, 1)); break; // Set the quantity to add to cart: _q2 case 'q': case 'Q': $p['qty'] = intval(drupal_substr($part, 1)); break; // Set an attribute/option for the product: _a3o6 case 'a': case 'A': $attribute = intval(drupal_substr($part, 1, stripos($part, 'o') - 1)); $option = (string) drupal_substr($part, stripos($part, 'o') + 1); if (!isset($p['attributes'][$attribute])) { $p['attributes'][$attribute] = $option; } else { // Multiple options for this attribute implies checkbox // attribute, which we must store as an array if (is_array($p['attributes'][$attribute])) { // Already an array, just append this new option $p['attributes'][$attribute][$option] = $option; } else { // Set but not an array, means we already have at least one // option, so put that into an array with this new option $p['attributes'][$attribute] = array( $p['attributes'][$attribute] => $p['attributes'][$attribute], $option => $option ); } } break; // Suppress the add to cart message: _s case 's': case 'S': $msg = FALSE; break; } } // Add the item to the cart, suppressing the default redirect. if ($p['nid'] > 0 && $p['qty'] > 0) { // If it's a product kit, we need black magic to make everything work // right. In other words, we have to simulate FAPI's form values. $node = node_load($p['nid']); if ($node->status) { if (isset($node->products) && is_array($node->products)) { foreach ($node->products as $nid => $product) { $p['data']['products'][$nid] = array( 'nid' => $nid, 'qty' => $product->qty, ); } } uc_cart_add_item($p['nid'], $p['qty'], $p['data'] + module_invoke_all('uc_add_to_cart_data', $p), NULL, $msg, FALSE, FALSE); $rebuild_cart = TRUE; } else { watchdog('uc_cart_link', 'Cart Link on %url tried to add an unpublished product to the cart.', array('%url' => $_SERVER['HTTP_REFERER']), WATCHDOG_ERROR); } } break; // Empty the shopping cart. case 'e': case 'E': if (variable_get('uc_cart_links_empty', TRUE)) { uc_cart_empty(); } break; // Display a pre-configured message. case 'm': case 'M': // Load the messages if they haven't been loaded yet. if (empty($messages)) { $data = explode("\n", variable_get('uc_cart_links_messages', '')); foreach ($data as $message) { list($mkey, $mdata) = explode('|', $message, 2); $messages[trim($mkey)] = trim($mdata); } } // Parse the message key and display it if it exists. $mkey = intval(drupal_substr($action, 1)); if (!empty($messages[$mkey])) { drupal_set_message($messages[$mkey]); } break; } // Rebuild the cart cache if necessary. if ($rebuild_cart) { uc_cart_get_contents(NULL, 'rebuild'); } } if (variable_get('uc_cart_links_track', TRUE)) { db_merge('uc_cart_link_clicks') ->key(array('cart_link_id' => (string) $id)) ->fields(array( 'clicks' => 1, 'last_click' => REQUEST_TIME, )) ->expression('clicks', 'clicks + :i', array(':i' => 1)) ->execute(); } $_SESSION['uc_cart_last_url'] = $_SERVER['HTTP_REFERER']; drupal_goto(); }