1 views_handler_filter_search.inc views_handler_filter_search::query()

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.

Overrides views_handler_filter::query

File

core/modules/search/views/views_handler_filter_search.inc, line 121
Contains a search filter handler.

Class

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

Code

function query() {
  // Since attachment views don't validate the exposed input, parse the search
  // expression if required.
  if (!$this->parsed) {
    $this->query_parse_search_expression($this->value);
  }
  $required = FALSE;
  if (!isset($this->search_query)) {
    $required = TRUE;
  }
  else {
    $words = $this->search_query->words();
    if (empty($words)) {
      $required = TRUE;
    }
  }
  if ($required) {
    if ($this->operator == 'required') {
      $this->query->add_where($this->options['group'], 'FALSE');
    }
  }
  else {
    $search_index = $this->ensure_my_table();

    $search_condition = db_and();

    if (!$this->options['remove_score']) {
      // 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));
    }

    if (empty($this->query->relationships[$this->relationship])) {
      $base_table = $this->query->base_table;
    }
    else {
      $base_table = $this->query->relationships[$this->relationship]['base'];
    }
    $search_condition->condition("$search_index.type", $base_table);
    if (!$this->search_query->simple()) {
      $search_dataset = $this->query->add_table('search_dataset');
      $conditions = $this->search_query->conditions();
      $condition_conditions = &$conditions->conditions();
      foreach ($condition_conditions as $key => &$condition) {
        // Take sure we just look at real conditions.
        if (is_numeric($key)) {
          // Replace the conditions with the table alias of views.
          $this->search_query->condition_replace_string('d.', "$search_dataset.", $condition);
        }
      }
      $search_conditions = &$search_condition->conditions();
      $search_conditions = array_merge($search_conditions, $condition_conditions);
    }
    else {
      // Stores each condition, so and/or on the filter level will still work.
      $or = db_or();
      foreach ($words as $word) {
        $or->condition("$search_index.word", $word);
      }

      $search_condition->condition($or);
    }

    $this->query->add_where($this->options['group'], $search_condition);
    $this->query->add_groupby("$search_index.sid");
    $matches = $this->search_query->matches();
    $placeholder = $this->placeholder();
    $this->query->add_having_expression($this->options['group'], "COUNT(*) >= $placeholder", array($placeholder => $matches));
  }
  // Set to NULL to prevent PDO exception when views object is cached.
  $this->search_query = NULL;
}