field_layout.install

<?php


/**
 * @file
 * Contains install and update functions for Field Layout.
 */
use Drupal\Core\Cache\Cache;
use Drupal\Core\Entity\Display\EntityDisplayInterface;
use Drupal\Core\Entity\Entity\EntityFormDisplay;
use Drupal\Core\Entity\Entity\EntityViewDisplay;
use Drupal\field_layout\Display\EntityDisplayWithLayoutInterface;

/**
 * Implements hook_install().
 */
function field_layout_install() {
    // Ensure each entity display has a layout.
    $entity_save = function (EntityDisplayInterface $entity) {
        if ($entity instanceof EntityDisplayWithLayoutInterface) {
            $entity->ensureLayout()
                ->save();
        }
    };
    array_map($entity_save, EntityViewDisplay::loadMultiple());
    array_map($entity_save, EntityFormDisplay::loadMultiple());
    // Invalidate the render cache since all content will now have a layout.
    Cache::invalidateTags([
        'rendered',
    ]);
}

/**
 * Implements hook_uninstall().
 */
function field_layout_uninstall() {
    // Reset each entity display to use the one-column layout to best approximate
    // the absence of layouts.
    $entity_save = function (EntityDisplayInterface $entity) {
        if ($entity instanceof EntityDisplayWithLayoutInterface) {
            $entity->setLayoutId('layout_onecol')
                ->save();
        }
    };
    array_map($entity_save, EntityViewDisplay::loadMultiple());
    array_map($entity_save, EntityFormDisplay::loadMultiple());
    // Invalidate the render cache since all content will no longer have a layout.
    Cache::invalidateTags([
        'rendered',
    ]);
}