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- <?php
- /**
- * @file
- * Menu page callbacks of Synonyms module.
- */
- /**
- * Page callback: Outputs JSON for taxonomy autocomplete suggestions.
- *
- * This callback outputs term name suggestions in response to Ajax requests
- * made by the synonyms autocomplete widget for taxonomy term reference
- * fields. The output is a JSON object of plain-text term suggestions,
- * keyed by the user-entered value with the completed term name appended.
- * Term names containing commas are wrapped in quotes. The search is made
- * with consideration of synonyms.
- *
- * @param string $field_name
- * The name of the term reference field.
- * @param string $entity_type
- * Entity type to which the supplied $field_name is attached to
- * @param string $bundle
- * Bundle name to which the supplied $field_name is attached to
- * @param string $tags_typed
- * (optional) A comma-separated list of term names entered in the
- * autocomplete form element. Only the last term is used for autocompletion.
- * Defaults to '' (an empty string).
- */
- function synonyms_autocomplete($field_name, $entity_type, $bundle, $tags_typed = '') {
- // If the request has a '/' in the search text, then the menu system will have
- // split it into multiple arguments, recover the intended $tags_typed.
- $args = func_get_args();
- // Shift off the $field_name argument.
- array_shift($args);
- // Shift off the $entity_type argument.
- array_shift($args);
- // Shift off the $bundle argument.
- array_shift($args);
- $tags_typed = implode('/', $args);
- // Make sure the field exists and is a taxonomy field.
- if (!($field = field_info_field($field_name)) || $field['type'] != 'taxonomy_term_reference') {
- // Error string. The JavaScript handler will realize this is not JSON and
- // will display it as debugging information.
- print t('Taxonomy field @field_name not found.', array('@field_name' => $field_name));
- exit;
- }
- if (!($instance = field_info_instance($entity_type, $field['field_name'], $bundle))) {
- // Error string. The JavaScript handler will realize this is not JSON and
- // will display it as debugging information.
- print t('There was not found an instance of @field_name in @entity_type.', array(
- '@field_name' => $field_name,
- '@entity_type' => $entity_type,
- ));
- exit;
- }
- $widget = $instance['widget']['type'] == 'synonyms_autocomplete' ? $instance['widget']['settings'] : field_info_widget_settings('synonyms_autocomplete');
- // How many suggestions maximum we are able to output.
- $max_suggestions = $widget['suggestion_size'];
- // Whether we are allowed to suggest more than one entry per term, shall that
- // entry be either term name itself or one of its synonyms.
- $suggest_only_unique = $widget['suggest_only_unique'];
- // The user enters a comma-separated list of tags. We only autocomplete the
- // last tag.
- $tags_typed = drupal_explode_tags($tags_typed);
- $tag_last = drupal_strtolower(array_pop($tags_typed));
- $tags_typed_tids = array();
- if (!empty($tags_typed)) {
- $efq = new EntityFieldQuery();
- $efq->entityCondition('entity_type', 'taxonomy_term');
- $efq->propertyCondition('name', $tags_typed);
- $tags_typed_tids = $efq->execute();
- if (isset($tags_typed_tids['taxonomy_term'])) {
- $tags_typed_tids = array_keys($tags_typed_tids['taxonomy_term']);
- }
- }
- $term_matches = array();
- if ($tag_last != '') {
- // Part of the criteria for the query come from the field's own settings.
- $vocabularies = array();
- $tmp = taxonomy_vocabulary_get_names();
- foreach ($field['settings']['allowed_values'] as $tree) {
- $vocabularies[$tmp[$tree['vocabulary']]->vid] = $tree['vocabulary'];
- }
- $vocabularies = taxonomy_vocabulary_load_multiple(array_keys($vocabularies));
- // Array of found suggestions. Each subarray of this array will represent
- // a single suggestion entry. The sub array must contain the following keys:
- // - tid: (int) tid of the suggested term
- // - name: (string) name of the suggested term
- // - wording: (string) human friendly XSS escaped text of the suggestion
- // entry
- $tags_return = array();
- // Firstly getting a list of tids that match by $term->name.
- $query = db_select('taxonomy_term_data', 't');
- $query->addTag('translatable');
- $query->addTag('term_access');
- // Do not select already entered terms.
- if (!empty($tags_typed_tids)) {
- $query->condition('t.tid', $tags_typed_tids, 'NOT IN');
- }
- // Select rows that match by term name.
- $result = $query
- ->fields('t', array('tid', 'name'))
- ->condition('t.vid', array_keys($vocabularies))
- ->condition('t.name', '%' . db_like($tag_last) . '%', 'LIKE')
- ->range(0, $max_suggestions)
- ->execute();
- foreach ($result as $v) {
- $v = (array) $v;
- $v['wording'] = check_plain($v['name']);
- $tags_return[] = $v;
- }
- // Now we go vocabulary by vocabulary looking through synonym fields.
- foreach ($vocabularies as $vocabulary) {
- // Now we go a synonym field by synonym field gathering suggestions.
- $bundle = field_extract_bundle('taxonomy_term', $vocabulary);
- $behavior_implementations = synonyms_behavior_get('autocomplete', 'taxonomy_term', $bundle, TRUE);
- foreach ($behavior_implementations as $implementation) {
- $condition = db_and();
- $condition->condition(AbstractSynonymsSynonymsBehavior::COLUMN_PLACEHOLDER, '%' . db_like($tag_last) . '%', 'LIKE');
- if (!empty($tags_typed_tids)) {
- $condition->condition('entity_id', $tags_typed_tids, 'NOT IN');
- }
- if ($suggest_only_unique && !empty($tags_return)) {
- $tmp = array();
- foreach ($tags_return as $tag_return) {
- $tmp[] = $tag_return['tid'];
- }
- $condition->condition('entity_id', $tmp, 'NOT IN');
- }
- $new_tids = array();
- foreach (synonyms_synonyms_find_behavior($condition, $implementation) as $synonym) {
- if (!$suggest_only_unique || !in_array($synonym->entity_id, $new_tids)) {
- $tags_return[] = array(
- 'tid' => $synonym->entity_id,
- 'name' => '',
- 'synonym' => $synonym->synonym,
- 'implementation' => $implementation,
- );
- $new_tids[] = $synonym->entity_id;
- }
- }
- }
- }
- $synonym_terms = array();
- foreach ($tags_return as $v) {
- if (isset($v['synonym'])) {
- $synonym_terms[] = $v['tid'];
- }
- }
- if (!empty($synonym_terms)) {
- $synonym_terms = taxonomy_term_load_multiple($synonym_terms);
- foreach ($tags_return as &$v) {
- if (isset($v['synonym'])) {
- $instance = field_info_instance($v['implementation']['entity_type'], $v['implementation']['field_name'], $v['implementation']['bundle']);
- $v['name'] = $synonym_terms[$v['tid']]->name;
- $v['wording'] = format_string(filter_xss($v['implementation']['settings']['wording']), array(
- '@synonym' => $v['synonym'],
- '@term' => $v['name'],
- '@field_name' => drupal_strtolower($instance['label']),
- ));
- }
- }
- }
- $prefix = empty($tags_typed) ? '' : drupal_implode_tags($tags_typed) . ', ';
- if (count($tags_return) > $max_suggestions) {
- $tags_return = array_slice($tags_return, 0, $max_suggestions);
- }
- // Now formatting the results.
- foreach ($tags_return as $info) {
- $n = $info['name'];
- // Term names containing commas or quotes must be wrapped in quotes.
- if (strpos($info['name'], ',') !== FALSE || strpos($info['name'], '"') !== FALSE) {
- $n = '"' . str_replace('"', '""', $info['name']) . '"';
- }
- while (isset($term_matches[$prefix . $n])) {
- $n .= ' ';
- }
- $term_matches[$prefix . $n] = $info['wording'];
- }
- }
- drupal_json_output($term_matches);
- }
- /**
- * Default theme implementation for behavior settings form element.
- */
- function theme_synonyms_behaviors_settings($variables) {
- drupal_add_css(drupal_get_path('module', 'synonyms') . '/synonyms.css');
- $element = &$variables['element'];
- $table = array(
- 'header' => array(t('Field')),
- 'rows' => array(),
- 'empty' => t('Seems like there are no fields for which synonyms functionality is available. Try adding a text field to get started.'),
- );
- $instance_ids = array();
- foreach (element_children($element) as $behavior) {
- $table['header'][] = check_plain($element[$behavior]['#title']);
- $instance_ids = array_unique(array_merge($instance_ids, element_children($element[$behavior])));
- }
- foreach ($instance_ids as $instance_id) {
- $row = array();
- $row_title = '';
- foreach (element_children($element) as $behavior) {
- if (isset($element[$behavior][$instance_id]['#title']) && !$row_title) {
- $row_title = check_plain($element[$behavior][$instance_id]['#title']);
- }
- $row[] = array(
- 'data' => isset($element[$behavior][$instance_id]) ? drupal_render($element[$behavior][$instance_id]) : t('Not implemented'),
- 'class' => array('synonyms-behavior-settings', 'synonyms-behavior-settings-' . $behavior),
- );
- }
- array_unshift($row, $row_title);
- $table['rows'][] = $row;
- }
- return '<div id="' . $element['#id'] . '">' . theme('table', $table) . drupal_render_children($element) . '</div>';
- }
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