views_handler_filter_search.inc in Views (for Drupal 7) 6.3

File

modules/search/views_handler_filter_search.inc

<?php

/**
 * Field handler to provide simple renderer that allows linking to a node.
 *
 * @ingroup views_filter_handlers
 */
class views_handler_filter_search extends views_handler_filter {
  var $no_single = TRUE;
  function option_definition() {
    $options = parent::option_definition();
    $options['operator']['default'] = 'optional';
    return $options;
  }
  function operator_options() {
    return array(
      'optional' => t('Show All'),
      'required' => t('Show None'),
    );
  }

  /**
   * Provide simple equality operator
   */
  function operator_form(&$form, &$form_state) {
    parent::operator_form($form, $form_state);
    $form['operator']['#title'] = t('On empty input');
  }

  /**
   * Provide a simple textfield for equality
   */
  function exposed_form(&$form, &$form_state) {
    if (isset($this->options['expose']['identifier'])) {
      $key = $this->options['expose']['identifier'];
      $form[$key] = array(
        '#type' => 'textfield',
        '#size' => 15,
        '#default_value' => $this->value,
        '#attributes' => array(
          'title' => t('Enter the terms you wish to search for.'),
        ),
      );
    }
  }

  /**
   * Validate the options form.
   */
  function exposed_validate($form, &$form_state) {
    if (!isset($this->options['expose']['identifier'])) {
      return;
    }
    $key = $this->options['expose']['identifier'];
    if (!empty($form_state['values'][$key])) {
      $this->search_query = search_parse_query($form_state['values'][$key]);
      if ($this->search_query[2] == '') {
        form_set_error($key, t('You must include at least one positive keyword with @count characters or more.', array(
          '@count' => variable_get('minimum_word_size', 3),
        )));
      }
      if ($this->search_query[6]) {
        if ($this->search_query[6] == 'or') {
          drupal_set_message(t('Search for either of the two terms with uppercase <strong>OR</strong>. For example, <strong>cats OR dogs</strong>.'));
        }
      }
    }
  }

  /**
   * Add this filter to the query.
   *
   * Due to the nature of fapi, the value and the operator have an unintended
   * level of indirection. You will find them in $this->operator
   * and $this->value respectively.
   */
  function query() {
    if (!isset($this->search_query) || empty($this->search_query[3])) {
      if ($this->operator == 'required') {
        $this->query
          ->add_where($this->options['group'], 'FALSE');
      }
    }
    else {
      $search_index = $this
        ->ensure_my_table();
      $this->search_query[2] = str_replace('i.', "{$search_index}.", $this->search_query[2]);

      // Create a new join to relate the 'serach_total' table to our current 'search_index' table.
      $join = new views_join();
      $join
        ->construct('search_total', $search_index, 'word', 'word');
      $search_total = $this->query
        ->add_relationship('search_total', $join, $search_index);
      $this->search_score = $this->query
        ->add_field('', "SUM({$search_index}.score * {$search_total}.count)", 'score', array(
        'aggregate' => TRUE,
      ));
      $this->query
        ->add_where($this->options['group'], $this->search_query[2], $this->search_query[3]);
      if (empty($this->query->relationships[$this->relationship])) {
        $base_table = $this->query->base_table;
      }
      else {
        $base_table = $this->query->relationships[$this->relationship]['base'];
      }
      $this->query
        ->add_where($this->options['group'], "{$search_index}.type = '%s'", $base_table);
      if (!$this->search_query[5]) {
        $search_dataset = $this->query
          ->add_table('search_dataset');
        $this->search_query[0] = str_replace('d.', "{$search_dataset}.", $this->search_query[0]);
        $this->query
          ->add_where($this->options['group'], $this->search_query[0], $this->search_query[1]);
      }
      $this->query
        ->add_groupby("{$search_index}.sid");
      $this->query
        ->add_having($this->options['group'], 'COUNT(*) >= %d', $this->search_query[4]);
    }
  }

}

Classes

Name	Description
views_handler_filter_search	Field handler to provide simple renderer that allows linking to a node.