--- a/ur_autocomplete.module 2011-02-25 03:13:11.000000000 +0100 +++ b/ur_autocomplete.module 2011-06-25 18:17:11.760340396 +0200 @@ -1,4 +1,4 @@ - array( 'label' => t('Enhanced Userreference Autocomplete'), - 'field types' => array('userreference'), - 'multiple values' => CONTENT_HANDLE_MODULE, - 'callbacks' => array( - 'default value' => CONTENT_CALLBACK_DEFAULT, + 'field types' => array('user_reference'), + 'behaviors' => array( + 'multiple values' => FIELD_BEHAVIOR_CUSTOM, ), ), ); } -/** - * Implementation of FAPI hook_elements(). - * - * Any FAPI callbacks needed for individual widgets can be declared here, - * and the element will be passed to those callbacks for processing. - * - * Drupal will automatically theme the element using a theme with - * the same name as the hook_elements key. - * - * Autocomplete_path is not used by text_widget but other widgets can use it - * (see nodereference and userreference). - */ -function ur_autocomplete_elements() { - return array( - 'ur_autocomplete' => array( - '#input' => TRUE, - '#columns' => array('name'), - '#delta' => 0, - '#process' => array('ur_autocomplete_process'), - '#autocomplete_path' => FALSE, - ), - ); -} /** - * Implementation of hook_widget_settings(). + * Implementation of hook_field_widget_form(). */ -function ur_autocomplete_widget_settings($op, $widget) { - switch ($op) { - case 'form': - $form = array(); - $match = isset($widget['autocomplete_match']) ? $widget['autocomplete_match'] : 'contains'; - if ($widget['type'] == 'ur_autocomplete') { - $form['autocomplete_match'] = array( - '#type' => 'select', - '#title' => t('Autocomplete matching'), - '#default_value' => $match, - '#options' => array( - 'starts_with' => t('Starts with'), - 'contains' => t('Contains'), - ), - '#description' => t('Select the method used to collect autocomplete suggestions. Note that Contains can cause performance issues on sites with thousands of users.'), - ); - } - else { - $form['autocomplete_match'] = array('#type' => 'hidden', '#value' => $match); - } - return $form; - - case 'save': - return array('autocomplete_match'); - } -} - -/** - * Implementation of hook_widget(). - */ -function ur_autocomplete_widget(&$form, &$form_state, $field, $items, $delta = 0) { - $element = array( - '#type' => $field['widget']['type'], +function ur_autocomplete_field_widget_form(&$form, &$form_state, $field, $instance, $langcode, $items, $delta, $element) { + $element += array( + '#type' => 'textfield', '#default_value' => $items, + '#autocomplete_path' => 'ur_autocomplete/autocomplete/' . $field['field_name'], '#value_callback' => 'ur_autocomplete_value', + '#element_validate' => array('_ur_validate_element'), ); - return $element; + + return array('uid' => $element); } + /** * Value for a userreference autocomplete element. * * Substitute in the user name for the user uid. */ function ur_autocomplete_value($element, $edit = FALSE) { + $names = array(); $field_key = $element['#columns'][0]; foreach ($element['#default_value'] as $delta => $item) { if (!empty($item['uid'])) { - $n = db_result(db_query(db_rewrite_sql('SELECT u.name FROM {users} u WHERE u.uid = %d'), $item['uid'])); + $n = db_query('SELECT u.name FROM {users} u WHERE u.uid = ?', array($item['uid']))->fetchField(); $names[] = ur_autocomplete_encode($n); } } return array($field_key => implode(', ', $names)); } -/** - * Process an individual element. - * - * Build the form element. When creating a form using FAPI #process, - * note that $element['#value'] is already set. - * - */ -function ur_autocomplete_process($element, $edit, $form_state, $form) { - // The userreference autocomplete widget doesn't need to create its own - // element, it can wrap around the text_textfield element and add an autocomplete - // path and some extra processing to it. - // Add a validation step where the value can be unwrapped. - $field_name = $element['#field_name']; - $field = $form['#field_info'][$field_name]; - - if (!$field['multiple']) { - $autocomplete = 'userreference/autocomplete/'; - } - else { - $autocomplete = 'ur_autocomplete/autocomplete/'; - } - $field_key = $element['#columns'][0]; - - $element[$field_key] = array( - '#type' => 'text_textfield', - '#default_value' => isset($element['#value']) ? $element['#value'] : '', - '#autocomplete_path' => $autocomplete . $element['#field_name'], - // The following values were set by the content module and need - // to be passed down to the nested element. - '#title' => $element['#title'], - '#required' => $element['#required'], - '#description' => $element['#description'], - '#field_name' => $element['#field_name'], - '#type_name' => $element['#type_name'], - '#delta' => $element['#delta'], - '#columns' => $element['#columns'], - ); - if (empty($element[$field_key]['#element_validate'])) { - $element[$field_key]['#element_validate'] = array(); - } - array_unshift($element[$field_key]['#element_validate'], 'ur_autocomplete_validate'); - - // Used so that hook_field('validate') knows where to flag an error. - $element['_error_element'] = array( - '#type' => 'value', - // Wrapping the element around a text_textfield element creates a - // nested element, so the final id will look like 'field-name-0-nid-nid'. - '#value' => implode('][', array_merge($element['#parents'], array($field_key, $field_key))), - ); - return $element; -} /** * Validate an autocomplete element. * * Remove the wrapper layer and set the right element's value. - * This will move the nested value at 'field-name-0-nid-nid' - * back to its original location, 'field-name-0-nid'. */ -function ur_autocomplete_validate($element, &$form_state) { +function _ur_validate_element($element, &$form_state) { + $field_name = $element['#field_name']; - $type_name = $element['#type_name']; - $field = content_fields($field_name, $type_name); + $field_key = $element['#columns'][0]; - $value = $element['#value'][$field_key]; + + // TODO: Why is $element['#value'] not set?! + $value = $form_state['input'][$field_name]['und'][$field_key]; + + // Loop through all of the comma-separated values. $values = array(); - $uid = NULL; - $typed_names = ur_autocomplete_parse_input($value); - foreach ($typed_names as $delta => $name) { - if (!empty($name)) { - if (($u = user_load(array('name' => $name))) && ur_autocomplete_encode($name) != $u->name && $name != $u->name) { - form_error($element[$field_key], t('%name: name mismatch. Please check your selection.', array('%name' => t($field['widget']['label'])))); - } - else { + $usernames = ur_autocomplete_parse_input($value); + foreach ($usernames as $delta => $name) { + $uid = db_query('SELECT uid FROM {users} WHERE name = ?', array($name))->fetchField(); + if (!($u = user_load($uid)) || (ur_autocomplete_encode($name) != $u->name && $name != $u->name)) { + form_set_error($field_name, t('%name is not a registered user.', array('%name' => $name))); + } else { $values[] = array('uid' => $u->uid); } - } } + + // Reassign the field's values. $new_parents = array(); foreach ($element['#parents'] as $parent) { $value = $value[$parent]; @@ -219,62 +121,58 @@ } /** - * Implementation of hook_allowed_values(). - */ -function ur_autocomplete_allowed_values($field) { - $references = _userreference_potential_references($field); - - $options = array(); - foreach ($references as $key => $value) { - $options[$key] = $value['rendered']; - } - return $options; -} - -/** * Retrieve a pipe delimited string of autocomplete suggestions * * Unholy union of taxonomy.module's taxonomy_autocomplete() and - * userreference.module's userreference_autocomplete(). + * user_reference.module's user_reference_autocomplete(). */ function ur_autocomplete_autocomplete($field_name, $string = '') { + // The user enters a comma-separated list of users. We only autocomplete the last user. - $array = drupal_explode_tags($string); + + $array = explode(', ', $string); + // Fetch last user. $last_string = trim(array_pop($array)); + if ($last_string != '') { - $fields = content_fields(); - $field = $fields[$field_name]; + + $field = field_info_field($field_name); + $count = count($array); - if ($count && empty($field['multiple'])) { - drupal_json(array()); - return; + if ($field['cardinality'] !== '-1' && $count >= $field['cardinality']) { + drupal_json_output(array()); exit; } $match = isset($field['widget']['autocomplete_match']) ? $field['widget']['autocomplete_match'] : 'contains'; $matches = array(); $prefix = $count ? implode(', ', $array) . ', ' : ''; + // $suffix = $count ? '' : ', '; + $suffix = ', '; + + $options = array( + 'string' => $last_string, + 'match' => 'contains', + 'ids' => false, + 'limit' => 3 + ); + + $references = _user_reference_potential_references_standard($field, $options); - $references = _userreference_potential_references($field, $last_string, $match, array(), 10); foreach ($references as $id => $row) { $u = ur_autocomplete_encode($row['title']); // Add a class wrapper for a few required CSS overrides. - $matches[$prefix . $u] = '
'. $row['rendered'] . '
'; + $matches[$prefix . $u . $suffix] = '
'. $row['rendered'] . '
'; } - drupal_json($matches); + drupal_json_output($matches); exit; } } /** * Escapes commas and quotes in user names. - * - * Based on code found in taxonomy.module * - * @param string $string - * String to encode - * @return string - * Encoded string + * Based on code found in taxonomy.module */ function ur_autocomplete_encode($string) { $n = $string; @@ -285,12 +183,8 @@ } /** - * Returns array containing all of the typed user names. * - * @param string $typed_input - * What the user put into the autocomplete field - * @return array - * Array containing each user name + * Returns array containing all of the typed user names. */ function ur_autocomplete_parse_input($typed_input) { // This regexp allows the following types of user input: