modules/search/views_handler_filter_search.inc

   1 <?php
   2
   3 /**
   4  * Field handler to provide simple renderer that allows linking to a node.
   5  */
   6 class views_handler_filter_search extends views_handler_filter {
   7   var $no_single = TRUE;
   8   function option_definition() {
   9     $options = parent::option_definition();
  10
  11     $options['operator']['default'] = 'optional';
  12
  13     return $options;
  14   }
  15
  16   /**
  17    * Provide simple equality operator
  18    */
  19   function operator_form(&$form, &$form_state) {
  20     $form['operator'] = array(
  21       '#type' => 'radios',
  22       '#title' => t('On empty input'),
  23       '#default_value' => $this->operator,
  24       '#options' => array(
  25         'optional' => t('Show All'),
  26         'required' => t('Show None'),
  27       ),
  28     );
  29   }
  30
  31   /**
  32    * Provide a simple textfield for equality
  33    */
  34   function exposed_form(&$form, &$form_state) {
  35     if (isset($this->options['expose']['identifier'])) {
  36       $key = $this->options['expose']['identifier'];
  37       $form[$key] = array(
  38         '#type' => 'textfield',
  39         '#size' => 15,
  40         '#default_value' => $this->value,
  41         '#attributes' => array('title' => t('Enter the terms you wish to search for.')),
  42       );
  43     }
  44   }
  45
  46   /**
  47    * Validate the options form.
  48    */
  49   function exposed_validate($form, &$form_state) {
  50     if (!isset($this->options['expose']['identifier'])) {
  51       return;
  52     }
  53
  54     $key = $this->options['expose']['identifier'];
  55     if (!empty($form_state['values'][$key])) {
  56       $this->search_query = search_parse_query($form_state['values'][$key]);
  57
  58       if ($this->search_query[2] == '') {
  59         form_set_error($key, t('You must include at least one positive keyword with @count characters or more.', array('@count' => variable_get('minimum_word_size', 3))));
  60       }
  61       if ($this->search_query[6]) {
  62         if ($this->search_query[6] == 'or') {
  63           drupal_set_message(t('Search for either of the two terms with uppercase <strong>OR</strong>. For example, <strong>cats OR dogs</strong>.'));
  64         }
  65       }
  66     }
  67   }
  68
  69   /**
  70    * Add this filter to the query.
  71    *
  72    * Due to the nature of fapi, the value and the operator have an unintended
  73    * level of indirection. You will find them in $this->operator
  74    * and $this->value respectively.
  75    */
  76   function query() {
  77     if (!isset($this->search_query) || empty($this->search_query[3])) {
  78       if ($this->operator == 'required') {
  79         $this->query->add_where($this->options['group'], '0');
  80       }
  81     }
  82     else {
  83       $search_index = $this->ensure_my_table();
  84       $this->search_query[2] = str_replace('i.', "$search_index.", $this->search_query[2]);
  85
  86       // Create a new join to relate the 'serach_total' table to our current 'search_index' table.
  87       $join = new views_join;
  88       $join->construct('search_total', $search_index, 'word', 'word');
  89       $search_total = $this->query->add_relationship('search_total', $join, $search_index);
  90
  91       $this->search_score = $this->query->add_field('', "SUM($search_index.score * $search_total.count)", 'score', array('aggregate' => TRUE));
  92
  93       $this->query->add_where($this->options['group'], $this->search_query[2], $this->search_query[3]);
  94
  95       if (empty($this->query->relationships[$this->relationship])) {
  96         $base_table = $this->query->base_table;
  97       }
  98       else {
  99         $base_table = $this->query->relationships[$this->relationship]['base'];
 100       }
 101       $this->query->add_where($this->options['group'], "$search_index.type = '%s'", $base_table);
 102       if (!$this->search_query[5]) {
 103         $search_dataset = $this->query->add_table('search_dataset');
 104         $this->search_query[0] = str_replace('d.', "$search_dataset.", $this->search_query[0]);
 105         $this->query->add_where($this->options['group'], $this->search_query[0], $this->search_query[1]);
 106       }
 107
 108       $this->query->add_groupby("$search_index.sid");
 109       $this->query->add_having($this->options['group'], 'COUNT(*) >= %d', $this->search_query[4]);
 110     }
 111   }
 112 }