1 views.module views_query_views_alter(QueryAlterableInterface $query)

Implements hook_query_TAG_alter().

This is the hook_query_alter() for queries tagged by Views and is used to add in substitutions from hook_views_query_substitutions().


core/modules/views/views.module, line 1849
Primarily Backdrop hooks and global API functions to manipulate views.


function views_query_views_alter(QueryAlterableInterface $query) {
  $substitutions = $query->getMetaData('views_substitutions');
  $tables = &$query->getTables();
  $where = &$query->conditions();

  // Replaces substitions in tables.
  foreach ($tables as $table_name => $table_metadata) {
    foreach ($table_metadata['arguments'] as $replacement_key => $value) {
      if (isset($substitutions[$value])) {
        $tables[$table_name]['arguments'][$replacement_key] = $substitutions[$value];

  // Replaces substitions in filter criterias.
  _views_query_tag_alter_condition($query, $where, $substitutions);