crm.fsf.org/20131203/files/sites/all/modules-old/views/modules/translation/views_handler_relationship_translation.inc

   1 <?php
   2
   3 /**
   4  * @file
   5  * Definition of views_handler_relationship_translation.
   6  */
   7
   8 /**
   9  * Handles relationships for content translation sets and provides multiple
  10  * options.
  11  *
  12  * @ingroup views_relationship_handlers
  13  */
  14 class views_handler_relationship_translation extends views_handler_relationship {
  15   function option_definition() {
  16     $options = parent::option_definition();
  17     $options['language'] = array('default' => 'current');
  18
  19     return $options;
  20   }
  21
  22   /**
  23    * Add a translation selector.
  24    */
  25   function options_form(&$form, &$form_state) {
  26     parent::options_form($form, $form_state);
  27
  28     $options = array(
  29       'all' => t('All'),
  30       'current' => t('Current language'),
  31       'default' => t('Default language'),
  32     );
  33     $options = array_merge($options, locale_language_list());
  34     $form['language'] = array(
  35       '#type' => 'select',
  36       '#options' => $options,
  37       '#default_value' => $this->options['language'],
  38       '#title' => t('Translation option'),
  39       '#description' => t('The translation options allows you to select which translation or translations in a translation set join on. Select "Current language" or "Default language" to join on the translation in the current or default language respectively. Select a specific language to join on a translation in that language. If you select "All", each translation will create a new row, which may appear to cause duplicates.'),
  40     );
  41   }
  42
  43   /**
  44    * Called to implement a relationship in a query.
  45    */
  46   function query() {
  47     // Figure out what base table this relationship brings to the party.
  48     $table_data = views_fetch_data($this->definition['base']);
  49     $base_field = empty($this->definition['base field']) ? $table_data['table']['base']['field'] : $this->definition['base field'];
  50
  51     $this->ensure_my_table();
  52
  53     $def = $this->definition;
  54     $def['table'] = $this->definition['base'];
  55     $def['field'] = $base_field;
  56     $def['left_table'] = $this->table_alias;
  57     $def['left_field'] = $this->field;
  58     if (!empty($this->options['required'])) {
  59       $def['type'] = 'INNER';
  60     }
  61
  62     $def['extra'] = array();
  63     if ($this->options['language'] != 'all') {
  64       switch ($this->options['language']) {
  65         case 'current':
  66           $def['extra'][] = array(
  67             'field' => 'language',
  68             'value' => '***CURRENT_LANGUAGE***',
  69           );
  70           break;
  71         case 'default':
  72           $def['extra'][] = array(
  73             'field' => 'language',
  74             'value' => '***DEFAULT_LANGUAGE***',
  75           );
  76           break;
  77         // Other values will be the language codes.
  78         default:
  79           $def['extra'][] = array(
  80             'field' => 'language',
  81             'value' => $this->options['language'],
  82           );
  83           break;
  84       }
  85     }
  86
  87     if (!empty($def['join_handler']) && class_exists($def['join_handler'])) {
  88       $join = new $def['join_handler'];
  89     }
  90     else {
  91       $join = new views_join();
  92     }
  93
  94     $join->definition = $def;
  95     $join->construct();
  96     $join->adjusted = TRUE;
  97
  98     // use a short alias for this:
  99     $alias = $def['table'] . '_' . $this->table;
 100
 101     $this->alias = $this->query->add_relationship($alias, $join, $this->definition['base'], $this->relationship);
 102   }
 103 }