active_tags_popular.module in Active Tags 6.2

Adds popular terms to Active Tags widget

File

active_tags_popular.module

<?php

/**
 * @file
 * Adds popular terms to Active Tags widget
 */

/**
 * Attaches active_tags widget to fields.
 *
 * @param $field_ids
 *  mixed - Either a single field id or an array of ids.
 */
function active_tags_popular_enable_widget($field_ids) {
  static $set_ids = array();

  // Load id into array if a string is passed in.
  if ($field_ids && !is_array($field_ids)) {
    $field_ids = array(
      $field_ids,
    );
  }

  // Ensure we are only adding each setting once.
  // This is important when previewing a node.
  foreach ($field_ids as $id) {
    if (!in_array($id, $set_ids)) {
      $ids[] = $id;
      $set_ids[] = $id;
    }
  }
  if (!empty($ids)) {
    $callback = url('taxonomy/active-tags-popular');
    drupal_add_js(array(
      'active_tags_popular' => $ids,
      'active_tags_popular_callback' => $callback,
    ), 'setting');
    drupal_add_js(drupal_get_path('module', 'active_tags_popular') . '/active_tags_popular.js', 'module');
  }
}

/**
 * Implementation of hook_menu().
 */
function active_tags_popular_menu() {
  $items['taxonomy/active-tags-popular'] = array(
    'title' => 'Active Tags Popular',
    'page callback' => 'active_tags_popular_callback',
    'access arguments' => array(
      'access content',
    ),
    'type' => MENU_CALLBACK,
  );
  return $items;
}

/**
 * Gets popular terms from the database for AJAX callback.
 *
 * @param $vid
 *  Vocabulary id.
 */
function active_tags_popular_callback($vid) {
  $matches = array();
  $result = db_query_range(db_rewrite_sql("SELECT t.tid, t.name, COUNT(tn.tid) AS term_count FROM {term_data} t INNER JOIN {term_node} tn ON t.tid = tn.tid INNER JOIN {node} n ON tn.vid = n.vid WHERE t.vid = %d GROUP BY t.tid, t.name ORDER BY term_count DESC", 't', 'tid'), $vid, 0, variable_get('active_tags_popular_no_' . $vid, 10));
  while ($tag = db_fetch_object($result)) {
    $matches[] = check_plain($tag->name);
  }
  drupal_json($matches);
}

/**
 * Implementation of hook_form_alter().
 */
function active_tags_popular_form_alter(&$form, $form_state, $form_id) {
  if ($form_id === 'taxonomy_form_vocabulary') {
    unset($form['settings']['active_tags']['#suffix']);
    $form['settings']['active_tags_popular'] = array(
      '#type' => 'checkbox',
      '#title' => t('Active Tags Helper - Popular'),
      '#weight' => -1,
      '#default_value' => isset($form['vid']) ? variable_get('active_tags_popular_' . $form['vid']['#value'], 0) : 0,
      '#description' => t('Adds additional helpers to the active tags widget to assist in adding popular tags to posts'),
    );
    $form['settings']['active_tags_popular_no'] = array(
      '#type' => 'textfield',
      '#title' => t('Number of popular tags to show'),
      '#weight' => 0,
      '#size' => 20,
      '#default_value' => isset($form['vid']) ? variable_get('active_tags_popular_no_' . $form['vid']['#value'], 10) : 10,
      '#suffix' => '</div>',
    );
    $form['#submit'][] = 'active_tags_popular_form_vocabulary_submit';
  }
  if ($form['#id'] === 'node-form' && isset($form['taxonomy']['tags'])) {
    $form['#after_build'][] = 'active_tags_popular_node_form_attach';
  }
}

/**
 * Enables Active Tags Popular for core taxonomy tag vocabularies.
 */
function active_tags_popular_node_form_attach($form, $form_state) {
  $settings = array();
  foreach ($form['taxonomy']['tags'] as $id => $values) {
    if (variable_get('active_tags_popular_' . $id, 0) == 1) {
      $settings[] = "#edit-taxonomy-tags-{$id}-wrapper";
    }
  }

  // Only load files if we found active tags enabled fields.
  if (!empty($settings)) {
    active_tags_popular_enable_widget($settings);
  }
  return $form;
}

/**
 * Saves settings from taxonomy vocabulary form.
 */
function active_tags_popular_form_vocabulary_submit($form, &$form_state) {
  variable_set('active_tags_popular_' . $form_state['values']['vid'], $form_state['values']['active_tags_popular']);
  variable_set('active_tags_popular_no_' . $form_state['values']['vid'], $form_state['values']['active_tags_popular_no']);
  return TRUE;
}

Functions

Name	Description
active_tags_popular_callback	Gets popular terms from the database for AJAX callback.
active_tags_popular_enable_widget	Attaches active_tags widget to fields.
active_tags_popular_form_alter	Implementation of hook_form_alter().
active_tags_popular_form_vocabulary_submit	Saves settings from taxonomy vocabulary form.
active_tags_popular_menu	Implementation of hook_menu().
active_tags_popular_node_form_attach	Enables Active Tags Popular for core taxonomy tag vocabularies.