function hook_views_query_substitutions in Drupal 8

Same name and namespace in other branches

1. 9 core/modules/views/views.api.php \hook_views_query_substitutions()

Replace special strings in the query before it is executed.

The idea is that certain dynamic values can be placed in a query when it is built, and substituted at run-time, allowing the query to be cached and still work correctly when executed.

Parameters

\Drupal\views\ViewExecutable $view: The View being executed.

Return value

array An associative array where each key is a string to be replaced, and the corresponding value is its replacement. The strings to replace are often surrounded with '***', as illustrated in the example implementation, to avoid collisions with other values in the query.

Related topics

6 functions implement hook_views_query_substitutions()

Note: this list is generated by pattern matching, so it may include some functions that are not actually implementations of this hook.

content_moderation_views_query_substitutions in core/modules/content_moderation/content_moderation.views_execution.inc

Implements hook_views_query_substitutions().

media_views_query_substitutions in core/modules/media/media.module

Implements hook_views_query_substitutions().

node_views_query_substitutions in core/modules/node/node.views_execution.inc

Implements hook_views_query_substitutions().

user_views_query_substitutions in core/modules/user/user.views_execution.inc

Implements hook_views_query_substitutions().

views_test_data_views_query_substitutions in core/modules/views/tests/modules/views_test_data/views_test_data.views_execution.inc

Implements hook_views_query_substitutions().

... See full list

2 invocations of hook_views_query_substitutions()

Sql::execute in core/modules/views/src/Plugin/views/query/Sql.php

Executes the query and fills the associated view object with according values.

Sql::query in core/modules/views/src/Plugin/views/query/Sql.php

Generate a query and a countquery from all of the information supplied to the object.

File

core/modules/views/views.api.php, line 660

Describes hooks and plugins provided by the Views module.

Code

function hook_views_query_substitutions(ViewExecutable $view) {

  // Example from views_views_query_substitutions().
  return [
    '***CURRENT_VERSION***' => \Drupal::VERSION,
    '***CURRENT_TIME***' => REQUEST_TIME,
    '***LANGUAGE_language_content***' => \Drupal::languageManager()
      ->getCurrentLanguage(LanguageInterface::TYPE_CONTENT)
      ->getId(),
    PluginBase::VIEWS_QUERY_LANGUAGE_SITE_DEFAULT => \Drupal::languageManager()
      ->getDefaultLanguage()
      ->getId(),
  ];
}