public ModuleUninstallValidatorInterface::validate($module)
Determines the reasons a module can not be uninstalled.
Example implementation:
public function validate($module) { $entity_types = $this->entityManager->getDefinitions(); $reasons = array(); foreach ($entity_types as $entity_type) { if ($module == $entity_type->getProvider() && $entity_type instanceof ContentEntityTypeInterface && $this->entityManager->getStorage($entity_type->id())->hasData()) { $reasons[] = $this->t('There is content for the entity type: @entity_type', array('@entity_type' => $entity_type->getLabel())); } } return $reasons; }
string $module: A module name.
string[] An array of reasons the module can not be uninstalled, empty if it can. Each reason should not end with any punctuation since multiple reasons can be displayed together.
template_preprocess_system_modules_uninstall()
public function validate($module);
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https://api.drupal.org/api/drupal/core!lib!Drupal!Core!Extension!ModuleUninstallValidatorInterface.php/function/ModuleUninstallValidatorInterface::validate/8.1.x