' . t('This module also provides user-defined mass URL aliasing capabilities, which is useful if you wish to uniformly use URLs different from the default. For example, you may want to have your URLs presented in a different language. Access to the Drupal source code on the web server is required to set up mass URL aliasing.') . '
'; $output .= '' . t('For more information, see the online handbook entry for Path module.', array('@path' => 'http://drupal.org/handbook/modules/path/')) . '
'; return $output; + case 'admin/config/search/path': return '' . t("An alias defines a different name for an existing URL path - for example, the alias 'about' for the URL path 'node/1'. A URL path can have multiple aliases.") . '
'; + case 'admin/config/search/path/add': return '' . t('Enter the path you wish to create the alias for, followed by the name of the new alias.') . '
'; } } /** + * Implement hook_permission(). + */ +function path_permission() { + return array( + 'administer url aliases' => array( + 'title' => t('Administer URL aliases'), + 'description' => t('Manage URL aliases across the entire website.'), + ), + 'create url aliases' => array( + 'title' => t('Create URL aliases'), + 'description' => t('Manage URL aliases on content.'), + ), + ); +} + +/** * Implement hook_menu(). */ function path_menu() { @@ -83,10 +101,10 @@ function path_load($criteria) { if (is_numeric($criteria)) { $criteria = array('pid' => $criteria); } - else if (is_string($criteria)) { + elseif (is_string($criteria)) { $criteria = array('source' => $criteria); } - else if (!is_array($criteria)) { + elseif (!is_array($criteria)) { return FALSE; } $select = db_select('url_alias'); @@ -94,7 +112,7 @@ function path_load($criteria) { $select->condition($field, $value); } return $select - ->fields('url_alias', array('source', 'alias', 'language', 'pid')) + ->fields('url_alias') ->execute() ->fetchAssoc(); } @@ -103,38 +121,28 @@ function path_load($criteria) { * Save a path alias to the database. * * @param $path - * A path array containing the following keys: - * - source: the initial path. - * - alias: the aliased path. - * - language: the language of the alias. - * - pid: unique path alias identifier (optional). - */ -function path_save($path) { - $path += array('language' => '', 'pid' => 0); - $pid = empty($path['pid']) ? 0 : $path['pid']; - $new = (bool) $pid; - unset($path['pid']); - // Make sure that this combination of source, alias, language wasn't save before. - $loaded_path = path_load($path); - if ($loaded_path) { - return $loaded_path; - } - if ($pid) { - db_update('url_alias') - ->fields($path) - ->condition('pid', $pid) - ->execute(); - } - else { - $pid = db_insert('url_alias') - ->fields($path) - ->execute(); + * An associative array containing the following keys: + * - source: The internal system path. + * - alias: The URL alias. + * - pid: (optional) Unique path alias identifier. + * - language: (optional) The language of the alias. + */ +function path_save(&$path) { + $path += array('pid' => NULL, 'language' => ''); + + // Insert or update the alias. + $status = drupal_write_record('url_alias', $path, (!empty($path['pid']) ? 'pid' : NULL)); + + // Verify that a record as written. + if (isset($status) && $status) { + if ($status === SAVED_NEW) { + module_invoke_all('path_insert', $path); + } + else { + module_invoke_all('path_update', $path); + } + drupal_clear_path_cache(); } - $path['pid'] = $pid; - module_invoke_all('path_' . ($new ? 'insert' : 'update'), $path); - - drupal_clear_path_cache(); - return $path; } /** @@ -158,30 +166,6 @@ function path_delete($criteria) { } /** - * Implement hook_node_validate(). - */ -function path_node_validate($node, $form) { - if (user_access('create url aliases') || user_access('administer url aliases')) { - if (isset($node->path)) { - if (!is_array($node->path)) { - $node->path = array('alias' => $node->path); - } - $select = db_select('url_alias')->condition('alias', trim($node->path['alias'])); - $select->addExpression('COUNT(alias)'); - if ($node->nid) { - $select->condition('source', 'node/' . $node->nid, '<>'); - } - if (isset($node->language)) { - $select->condition('language', $node->language); - } - if ($select->execute()->fetchField()) { - form_set_error('path', t('The path is already in use.')); - } - } - } -} - -/** * Implement hook_node_load(). */ function path_node_load($nodes, $types) { @@ -198,191 +182,203 @@ function path_node_load($nodes, $types) } /** - * Implement hook_node_insert(). - */ -function path_node_insert($node) { - if ((user_access('create url aliases') || user_access('administer url aliases')) && isset($node->path)) { - if (!is_array($node->path)) { - $node->path = array('alias' => $node->path); - } - - $node->path += array( - 'source' => 'node/' . $node->nid, - 'language' => isset($node->language) ? $node->language : '', - ); - $node->path = path_save($node->path); - } -} - -/** - * Implement hook_node_update(). - */ -function path_node_update($node) { - if ((user_access('create url aliases') || user_access('administer url aliases')) && isset($node->path)) { - if (!is_array($node->path)) { - $node->path = array('alias' => $node->path); - } - if (isset($node->pid)) { - $node->path['pid'] = $node->pid; - } - $node->path += array( - 'source' => 'node/' . $node->nid, - 'language' => isset($node->language) ? $node->language : '', - ); - path_save($node->path); - } -} - -/** - * Implement hook_node_delete(). - */ -function path_node_delete($node) { - if (isset($node->path)) { - if (!is_array($node->path)) { - $node->path = path_load(array('alias' => $node->path)); - } - path_delete($node->path['pid']); - unset($node->path); - } -} - -/** - * Implement hook_taxonomy_term_delete(). - */ -function path_taxonomy_term_delete($term) { - path_delete(path_load('taxonomy/term/' . $term->tid)); -} - -/** * Implement hook_form_alter(). */ function path_form_alter(&$form, $form_state, $form_id) { if (!empty($form['#node_edit_form'])) { - $path = NULL; - if (isset($form['#node']->path)) { - if (is_array($form['#node']->path)) { - $path = $form['#node']->path['alias']; - } - else { - $path = $form['#node']->path; - } - } + $path = (isset($form['#node']->path) ? $form['#node']->path : array()); + $path += array( + 'pid' => NULL, + 'source' => isset($form['#node']->nid) ? 'node/' . $form['#node']->nid : NULL, + 'alias' => '', + 'language' => isset($form['#node']->language) ? $form['#node']->language : '', + ); $form['path'] = array( '#type' => 'fieldset', '#title' => t('URL path settings'), '#collapsible' => TRUE, - '#collapsed' => empty($path), + '#collapsed' => empty($path['alias']), '#group' => 'additional_settings', '#attached' => array( 'js' => array(drupal_get_path('module', 'path') . '/path.js'), ), - '#access' => user_access('create url aliases'), + '#access' => user_access('create url aliases') || user_access('administer url aliases'), '#weight' => 30, + '#tree' => TRUE, + '#element_validate' => array('path_form_element_validate'), ); - $form['path']['path'] = array( + $form['path']['alias'] = array( '#type' => 'textfield', '#title' => t('URL alias'), - '#default_value' => $path, + '#default_value' => $path['alias'], '#maxlength' => 255, '#collapsible' => TRUE, '#collapsed' => TRUE, '#description' => t('Optionally specify an alternative URL by which this node can be accessed. For example, type "about" when writing an about page. Use a relative path and don\'t add a trailing slash or the URL alias won\'t work.'), ); - if ($path) { - $form['path']['pid'] = array( - '#type' => 'value', - '#value' => $form['#node']->path['pid'], + $form['path']['pid'] = array('#type' => 'value', '#value' => $path['pid']); + $form['path']['source'] = array('#type' => 'value', '#value' => $path['source']); + $form['path']['language'] = array('#type' => 'value', '#value' => $path['language']); + } +} + +/** + * Form element validation handler for URL alias form element. + */ +function path_form_element_validate($element, &$form_state, $complete_form) { + if (!empty($form_state['values']['path']['alias'])) { + // Trim the submitted value. + $alias = trim($form_state['values']['path']['alias']); + form_set_value($element['alias'], $alias, $form_state); + $path = $form_state['values']['path']; + + // Ensure that the submitted alias does not exist yet. + $query = db_select('url_alias') + ->condition('alias', $path['alias']) + ->condition('language', $path['language']); + if (!empty($path['source'])) { + $query->condition('source', $path['source'], '<>'); + } + $query->addExpression('COUNT(1)'); + $query->range(0, 1); + if ($query->execute()->fetchField()) { + form_set_error('alias', t('The alias is already in use.')); + } + } +} + +/** + * Implement hook_node_insert(). + */ +function path_node_insert($node) { + if (isset($node->path)) { + $path = $node->path; + $path['alias'] = trim($path['alias']); + // Only save a non-empty alias. + if (!empty($path['alias'])) { + // Ensure fields for programmatic executions. + $path += array( + 'source' => 'node/' . $node->nid, + 'language' => isset($node->language) ? $node->language : '', ); + path_save($path); } } } /** + * Implement hook_node_update(). + */ +function path_node_update($node) { + if (isset($node->path)) { + $path = $node->path; + $path['alias'] = trim($path['alias']); + // Delete old alias if user erased it. + if (!empty($path['pid']) && empty($path['alias'])) { + path_delete($path['pid']); + } + // Only save a non-empty alias. + if (!empty($path['alias'])) { + // Ensure fields for programmatic executions. + $path += array( + 'source' => 'node/' . $node->nid, + 'language' => isset($node->language) ? $node->language : '', + ); + path_save($path); + } + } +} + +/** + * Implement hook_node_delete(). + */ +function path_node_delete($node) { + // Delete all aliases associated with this node. + path_delete(array('source' => 'node/' . $node->nid)); +} + +/** * Implement hook_form_FORM_ID_alter(). */ function path_form_taxonomy_form_term_alter(&$form, $form_state) { // Make sure this does not show up on the delete confirmation form. if (empty($form_state['confirm_delete'])) { - // After a new term is added, populate the path field if it was set. - if (!empty($form['#term']['path'])) { - $path = $form['#term']['path']; - if (!is_array($path)) { - $path = path_load(array('alias' => $path)); - } - } - else { - $alias = path_load('taxonomy/term/' . $form['#term']['tid']); - // Since drupal_get_path_alias() can return the default path, check if we really have an alias. - if ($alias['alias'] != 'taxonomy/term/' . $form['#term']['tid']) { - $path = $alias; - } - else { - $path = NULL; - } - } - $form['#validate'][] = 'path_taxonomy_term_validate'; - $form['#submit'][] = 'path_taxonomy_term_submit'; + $path = (isset($form['#term']['tid']) ? path_load('taxonomy/term/' . $form['#term']['tid']) : array()); + if ($path === FALSE) { + $path = array(); + } + $path += array( + 'pid' => NULL, + 'source' => isset($form['#term']['tid']) ? 'taxonomy/term/' . $form['#term']['tid'] : NULL, + 'alias' => '', + 'language' => '', + ); $form['identification']['path'] = array( + '#access' => user_access('create url aliases') || user_access('administer url aliases'), + '#tree' => TRUE, + '#element_validate' => array('path_form_element_validate'), + ); + $form['identification']['path']['alias'] = array( '#type' => 'textfield', '#title' => t('URL alias'), '#default_value' => $path['alias'], '#maxlength' => 255, '#weight' => 0, - '#access' => (user_access('create url aliases') || user_access('administer url aliases')), '#description' => t("Optionally specify an alternative URL by which this term can be accessed. Use a relative path and don't add a trailing slash or the URL alias won't work."), ); - if ($path) { - // Populate with pid so we can update existing path entry instead of creating a new one. - $form['identification']['path']['pid'] = array( - '#type' => 'value', - '#access' => (user_access('create url aliases') || user_access('administer url aliases')), - '#value' => db_query("SELECT pid FROM {url_alias} WHERE alias = :alias", array(':alias' => $path['alias']))->fetchField(), - ); - } + $form['identification']['path']['pid'] = array('#type' => 'value', '#value' => $path['pid']); + $form['identification']['path']['source'] = array('#type' => 'value', '#value' => $path['source']); + $form['identification']['path']['language'] = array('#type' => 'value', '#value' => $path['language']); } } /** - * Path validation callback for taxonomy_form_term. + * Implement hook_taxonomy_term_insert(). */ -function path_taxonomy_term_validate($form, &$form_state) { - $path = path_load(array('alias' => $form_state['values']['path'])); - if ($path) { - // If the pid matches the one in use for this term then we are fine. - if (isset($form_state['values']['pid']) && $path['pid'] == $form_state['values']['pid']) { - return; +function path_taxonomy_term_insert($term) { + if (isset($term->path)) { + $path = $term->path; + $path['alias'] = trim($path['alias']); + // Only save a non-empty alias. + if (!empty($path['alias'])) { + // Ensure fields for programmatic executions. + $path += array( + 'source' => 'taxonomy/term/' . $term->tid, + 'language' => '', + ); + path_save($path); } - form_set_error('path', t('The URL alias is already in use.')); } } /** - * Path submission callback for taxonomy_form_term. + * Implement hook_taxonomy_term_update(). */ -function path_taxonomy_term_submit($form, &$form_state) { - // Make sure this is not triggered on the delete confirmation form. - if (empty($form_state['confirm_delete'])) { - $path = array( - 'source' => 'taxonomy/term/' . $form_state['tid'], - 'alias' => isset($form_state['values']['path']) ? $form_state['values']['path'] : NULL, - 'pid' => isset($form_state['values']['pid']) ? $form_state['values']['pid'] : NULL, - ); - path_save($path); +function path_taxonomy_term_update($term) { + if (isset($term->path)) { + $path = $term->path; + $path['alias'] = trim($path['alias']); + // Delete old alias if user erased it. + if (!empty($path['pid']) && empty($path['alias'])) { + path_delete($path['pid']); + } + // Only save a non-empty alias. + if (!empty($path['alias'])) { + // Ensure fields for programmatic executions. + $path += array( + 'source' => 'taxonomy/term/' . $term->tid, + 'language' => '', + ); + path_save($path); + } } } /** - * Implement hook_permission(). + * Implement hook_taxonomy_term_delete(). */ -function path_permission() { - return array( - 'administer url aliases' => array( - 'title' => t('Administer URL aliases'), - 'description' => t('Manage URL aliases across the entire website.'), - ), - 'create url aliases' => array( - 'title' => t('Create URL aliases'), - 'description' => t('Manage URL aliases on content.'), - ), - ); +function path_taxonomy_term_delete($term) { + // Delete all aliases associated with this term. + path_delete(array('source' => 'taxonomy/term/' . $term->tid)); } +