1. drupal
    1. 8
    2. 7
7 – 8 search_expression_insert($expression, $option, $value = NULL)

Adds a module-specific search option to a search expression.

Search options are added using search_expression_insert(), and retrieved using search_expression_extract(). They take the form option:value, and are added to the ordinary keywords in the search expression.


$expression The search expression to add to.

$option The name of the option to add to the search expression.

$value The value to add for the option. If present, it will replace any previous value added for the option. Cannot contain any spaces or | characters, as these are used as delimiters. If you want to add a blank value $option: to the search expression, pass in an empty string or a string that is composed of only spaces. To clear a previously-stored option without adding a replacement, pass in NULL for $value or omit.

Return value

$expression, with any previous value for this option removed, and a new $option:$value pair added if $value was provided.

▾ 3 functions call search_expression_insert()

node_search_validate in modules/node/node.module
Form API callback for the search form. Registered in node_form_alter().
SearchExpressionInsertExtractTestCase::testInsertExtract in modules/search/search.test
Tests search_expression_insert() and search_expression_extract().
SearchQuery::setOption in modules/search/
Applies a search option and removes it from the search query string.


modules/search/search.module, line 900

function search_expression_insert($expression, $option, $value = NULL) {
  // Remove any previous values stored with $option.
  $expression = trim(preg_replace('/(^| )' . $option . ':[^ ]*/i', '', $expression));

  // Set new value, if provided.
  if (isset($value)) {
    $expression .= ' ' . $option . ':' . trim($value);
  return $expression;