trait RefreshVariablesTrait

Same name and namespace in other branches
  1. 9 core/lib/Drupal/Core/Test/RefreshVariablesTrait.php \Drupal\Core\Test\RefreshVariablesTrait
  2. 10 core/lib/Drupal/Core/Test/RefreshVariablesTrait.php \Drupal\Core\Test\RefreshVariablesTrait
  3. 11.x core/lib/Drupal/Core/Test/RefreshVariablesTrait.php \Drupal\Core\Test\RefreshVariablesTrait

Provides a method to refresh in-memory configuration and state information.

Hierarchy

1 file declares its use of RefreshVariablesTrait
UiHelperTrait.php in core/tests/Drupal/Tests/UiHelperTrait.php

File

core/lib/Drupal/Core/Test/RefreshVariablesTrait.php, line 10

Namespace

Drupal\Core\Test
View source 
trait RefreshVariablesTrait {
    
    /**
     * Refreshes in-memory configuration and state information.
     *
     * Useful after a page request is made that changes configuration or state in
     * a different thread.
     *
     * In other words calling a settings page with $this->drupalPostForm() with a
     * changed value would update configuration to reflect that change, but in the
     * thread that made the call (thread running the test) the changed values
     * would not be picked up.
     *
     * This method clears the cache and loads a fresh copy.
     */
    protected function refreshVariables() {
        // Clear the tag cache.
        \Drupal::service('cache_tags.invalidator')->resetChecksums();
        foreach (Cache::getBins() as $backend) {
            if (is_callable([
                $backend,
                'reset',
            ])) {
                $backend->reset();
            }
        }
        \Drupal::service('config.factory')->reset();
        \Drupal::service('state')->resetCache();
    }

}

Members

Title Modifiers Object type Summary Overrides
RefreshVariablesTrait::refreshVariables protected function Refreshes in-memory configuration and state information. 3

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.