/**
* Gets default constraints for the given data definition.
*
* This generates default constraint definitions based on the data definition;
* e.g. a NotNull constraint is generated if the data is defined as required.
* Besides that any constraints defined for the data type, i.e. below the
* 'constraint' key of the type's plugin definition, are taken into account.
*
* @param \Drupal\Core\TypedData\DataDefinitionInterface $definition
* A data definition.
*
* @return array
* An array of validation constraint definitions, keyed by constraint name.
* Each constraint definition can be used for instantiating
* \Symfony\Component\Validator\Constraint objects.
*/
public function getDefaultConstraints(DataDefinitionInterface $definition)
{
$constraints = array();
$type_definition = $this->getDefinition($definition->getDataType());
// Auto-generate a constraint for data types implementing a primitive
// interface.
if (is_subclass_of($type_definition['class'], '\\Drupal\\Core\\TypedData\\PrimitiveInterface')) {
$constraints['PrimitiveType'] = array();
}
// Add in constraints specified by the data type.
if (isset($type_definition['constraints'])) {
$constraints += $type_definition['constraints'];
}
// Add the NotNull constraint for required data.
if ($definition->isRequired()) {
$constraints['NotNull'] = array();
}
// Check if the class provides allowed values.
if (is_subclass_of($definition->getClass(), 'Drupal\\Core\\TypedData\\OptionsProviderInterface')) {
$constraints['AllowedValues'] = array();
}
// Add any constraints about referenced data.
if ($definition instanceof DataReferenceDefinitionInterface) {
$constraints += $definition->getTargetDefinition()->getConstraints();
}
return $constraints;
}
/**
* {@inheritdoc}
*/
public function canFilter(DataDefinitionInterface $definition)
{
return is_subclass_of($definition->getClass(), DateTimeInterface::class);
}
/**
* Checks that the data type of a mapped variable matches the expectation.
*
* @param \Drupal\Core\Plugin\Context\ContextDefinitionInterface $context_definition
* The context definition of the context on the plugin.
* @param \Drupal\Core\TypedData\DataDefinitionInterface $provided
* The data definition of the mapped variable to the context.
* @param string $context_name
* The name of the context on the plugin.
* @param \Drupal\rules\Engine\IntegrityViolationList $violation_list
* The list of violations where new ones will be added.
*/
protected function checkDataTypeCompatible(ContextDefinitionInterface $context_definition, DataDefinitionInterface $provided, $context_name, IntegrityViolationList $violation_list)
{
$expected_class = $context_definition->getDataDefinition()->getClass();
$provided_class = $provided->getClass();
$expected_type_problem = NULL;
if (is_subclass_of($expected_class, PrimitiveInterface::class) && !is_subclass_of($provided_class, PrimitiveInterface::class)) {
$expected_type_problem = $this->t('primitive');
} elseif (is_subclass_of($expected_class, ListInterface::class) && !is_subclass_of($provided_class, ListInterface::class)) {
$expected_type_problem = $this->t('list');
} elseif (is_subclass_of($expected_class, ComplexDataInterface::class) && !is_subclass_of($provided_class, ComplexDataInterface::class)) {
$expected_type_problem = $this->t('complex');
}
if ($expected_type_problem) {
$violation = new IntegrityViolation();
$violation->setMessage($this->t('Expected a @expected_type data type for context %context_name but got a @provided_type data type instead.', ['@expected_type' => $expected_type_problem, '%context_name' => $context_definition->getLabel(), '@provided_type' => $provided->getDataType()]));
$violation->setContextName($context_name);
$violation_list->add($violation);
}
}
/**
* {@inheritdoc}
*/
public function getClass() {
return $this->wrappedProperty->getClass();
}
