revisioning_handler_filter_node_number_of_revisions.inc in Revisioning 7

Views filter override to filter on the number of revisions a node has.

File

views/revisioning_handler_filter_node_number_of_revisions.inc

<?php

/**
 * @file
 * Views filter override to filter on the number of revisions a node has.
 */
class revisioning_handler_filter_node_number_of_revisions extends views_handler_filter_numeric {

  /**
   * Override the query, in particular the WHERE clause.
   */
  public function query() {
    if (empty($this->value)) {
      return;
    }
    $info = $this
      ->operators();
    $operator_symbol = drupal_strtoupper($info[$this->operator]['short']);
    if (!empty($operator_symbol)) {
      $node_table = $this
        ->ensure_my_table();
      $revisions_table = $this->query
        ->ensure_table('node_revision');
      $pseudo_field = "(SELECT COUNT(vid) FROM {$revisions_table} WHERE nid={$node_table}.nid)";

      // Can't use add_where() as it sanitises (destroys) the $where_expression
      // Have to use add_where_expression() and copy what add_where() does.
      if ($operator_symbol == 'BETWEEN' || $operator_symbol == 'NOT BETWEEN') {
        $where_expression = "{$pseudo_field} {$operator_symbol} '" . $this->value['min'] . "' AND '" . $this->value['max'] . "'";
      }
      else {
        $where_expression = "{$pseudo_field} {$operator_symbol} " . $this->value['value'];
      }
      $this->query
        ->add_where_expression($this->options['group'], $where_expression);
    }
  }

}

Classes

Name	Description
revisioning_handler_filter_node_number_of_revisions	@file Views filter override to filter on the number of revisions a node has.