views_handler_filter_node_tnid.inc

<?php


/**
 * @file
 * Definition of views_handler_filter_node_tnid.
 */

/**
 * Filter by whether the node is the original translation.
 *
 * @ingroup views_filter_handlers
 */
class views_handler_filter_node_tnid extends views_handler_filter {
    
    /**
     * {@inheritdoc}
     */
    public function admin_summary() {
    }
    
    /**
     * {@inheritdoc}
     */
    public function option_definition() {
        $options = parent::option_definition();
        $options['operator']['default'] = 1;
        return $options;
    }
    
    /**
     * Provide simple boolean operator.
     */
    public function operator_form(&$form, &$form_state) {
        $form['operator'] = array(
            '#type' => 'radios',
            '#title' => t('Include untranslated content'),
            '#default_value' => $this->operator,
            '#options' => array(
                1 => t('Yes'),
                0 => t('No'),
            ),
        );
    }
    
    /**
     * {@inheritdoc}
     */
    public function can_expose() {
        return FALSE;
    }
    
    /**
     * {@inheritdoc}
     */
    public function query() {
        $table = $this->ensure_my_table();
        // Select for source translations (tnid = nid). Conditionally, also accept
        // either untranslated nodes (tnid = 0).
        $expression = "{$table}.tnid = {$table}.nid";
        if ($this->operator) {
            $expression .= " OR {$table}.tnid = 0";
        }
        $this->query
            ->add_where_expression($this->options['group'], $expression);
    }

}