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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Validator\Context;
use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintViolationListInterface;
use Symfony\Component\Validator\Mapping;
use Symfony\Component\Validator\Mapping\MetadataInterface;
use Symfony\Component\Validator\Validator\ValidatorInterface;
use Symfony\Component\Validator\Violation\ConstraintViolationBuilderInterface;
/**
* The context of a validation run.
*
* The context collects all violations generated during the validation. By
* default, validators execute all validations in a new context:
*
* $violations = $validator->validate($object);
*
* When you make another call to the validator, while the validation is in
* progress, the violations will be isolated from each other:
*
* public function validate($value, Constraint $constraint)
* {
* $validator = $this->context->getValidator();
*
* // The violations are not added to $this->context
* $violations = $validator->validate($value);
* }
*
* However, if you want to add the violations to the current context, use the
* {@link ValidatorInterface::inContext()} method:
*
* public function validate($value, Constraint $constraint)
* {
* $validator = $this->context->getValidator();
*
* // The violations are added to $this->context
* $validator
* ->inContext($this->context)
* ->validate($value)
* ;
* }
*
* Additionally, the context provides information about the current state of
* the validator, such as the currently validated class, the name of the
* currently validated property and more. These values change over time, so you
* cannot store a context and expect that the methods still return the same
* results later on.
*
* @author Bernhard Schussek <bschussek@gmail.com>
*/
interface ExecutionContextInterface
{
/**
* Adds a violation at the current node of the validation graph.
*
* @param string|\Stringable $message The error message as a string or a stringable object
* @param array $params The parameters substituted in the error message
*/
public function addViolation(string $message, array $params = []);
/**
* Returns a builder for adding a violation with extended information.
*
* Call {@link ConstraintViolationBuilderInterface::addViolation()} to
* add the violation when you're done with the configuration:
*
* $context->buildViolation('Please enter a number between %min% and %max%.')
* ->setParameter('%min%', '3')
* ->setParameter('%max%', '10')
* ->setTranslationDomain('number_validation')
* ->addViolation();
*
* @param string|\Stringable $message The error message as a string or a stringable object
* @param array $parameters The parameters substituted in the error message
*
* @return ConstraintViolationBuilderInterface
*/
public function buildViolation(string $message, array $parameters = []);
/**
* Returns the validator.
*
* Useful if you want to validate additional constraints:
*
* public function validate($value, Constraint $constraint)
* {
* $validator = $this->context->getValidator();
*
* $violations = $validator->validate($value, new Length(['min' => 3]));
*
* if (count($violations) > 0) {
* // ...
* }
* }
*
* @return ValidatorInterface
*/
public function getValidator();
/**
* Returns the currently validated object.
*
* If the validator is currently validating a class constraint, the
* object of that class is returned. If it is validating a property or
* getter constraint, the object that the property/getter belongs to is
* returned.
*
* In other cases, null is returned.
*
* @return object|null
*/
public function getObject();
/**
* Sets the currently validated value.
*
* @param mixed $value The validated value
* @param object|null $object The currently validated object
* @param string $propertyPath The property path to the current value
*
* @internal Used by the validator engine. Should not be called by user
* code.
*/
public function setNode($value, ?object $object, MetadataInterface $metadata = null, string $propertyPath);
/**
* Sets the currently validated group.
*
* @param string|null $group The validated group
*
* @internal Used by the validator engine. Should not be called by user
* code.
*/
public function setGroup(?string $group);
/**
* Sets the currently validated constraint.
*
* @internal Used by the validator engine. Should not be called by user
* code.
*/
public function setConstraint(Constraint $constraint);
/**
* Marks an object as validated in a specific validation group.
*
* @param string $cacheKey The hash of the object
* @param string $groupHash The group's name or hash, if it is group
* sequence
*
* @internal Used by the validator engine. Should not be called by user
* code.
*/
public function markGroupAsValidated(string $cacheKey, string $groupHash);
/**
* Returns whether an object was validated in a specific validation group.
*
* @param string $cacheKey The hash of the object
* @param string $groupHash The group's name or hash, if it is group
* sequence
*
* @return bool
*
* @internal Used by the validator engine. Should not be called by user
* code.
*/
public function isGroupValidated(string $cacheKey, string $groupHash);
/**
* Marks a constraint as validated for an object.
*
* @param string $cacheKey The hash of the object
* @param string $constraintHash The hash of the constraint
*
* @internal Used by the validator engine. Should not be called by user
* code.
*/
public function markConstraintAsValidated(string $cacheKey, string $constraintHash);
/**
* Returns whether a constraint was validated for an object.
*
* @param string $cacheKey The hash of the object
* @param string $constraintHash The hash of the constraint
*
* @return bool
*
* @internal Used by the validator engine. Should not be called by user
* code.
*/
public function isConstraintValidated(string $cacheKey, string $constraintHash);
/**
* Marks that an object was initialized.
*
* @param string $cacheKey The hash of the object
*
* @internal Used by the validator engine. Should not be called by user
* code.
*
* @see ObjectInitializerInterface
*/
public function markObjectAsInitialized(string $cacheKey);
/**
* Returns whether an object was initialized.
*
* @param string $cacheKey The hash of the object
*
* @return bool
*
* @internal Used by the validator engine. Should not be called by user
* code.
*
* @see ObjectInitializerInterface
*/
public function isObjectInitialized(string $cacheKey);
/**
* Returns the violations generated by the validator so far.
*
* @return ConstraintViolationListInterface
*/
public function getViolations();
/**
* Returns the value at which validation was started in the object graph.
*
* The validator, when given an object, traverses the properties and
* related objects and their properties. The root of the validation is the
* object from which the traversal started.
*
* The current value is returned by {@link getValue}.
*
* @return mixed
*/
public function getRoot();
/**
* Returns the value that the validator is currently validating.
*
* If you want to retrieve the object that was originally passed to the
* validator, use {@link getRoot}.
*
* @return mixed
*/
public function getValue();
/**
* Returns the metadata for the currently validated value.
*
* With the core implementation, this method returns a
* {@link Mapping\ClassMetadataInterface} instance if the current value is an object,
* a {@link Mapping\PropertyMetadata} instance if the current value is
* the value of a property and a {@link Mapping\GetterMetadata} instance if
* the validated value is the result of a getter method.
*
* If the validated value is neither of these, for example if the validator
* has been called with a plain value and constraint, this method returns
* null.
*
* @return MetadataInterface|null
*/
public function getMetadata();
/**
* Returns the validation group that is currently being validated.
*
* @return string|null
*/
public function getGroup();
/**
* Returns the class name of the current node.
*
* If the metadata of the current node does not implement
* {@link Mapping\ClassMetadataInterface} or if no metadata is available for the
* current node, this method returns null.
*
* @return string|null
*/
public function getClassName();
/**
* Returns the property name of the current node.
*
* If the metadata of the current node does not implement
* {@link PropertyMetadataInterface} or if no metadata is available for the
* current node, this method returns null.
*
* @return string|null
*/
public function getPropertyName();
/**
* Returns the property path to the value that the validator is currently
* validating.
*
* For example, take the following object graph:
*
* <pre>
* (Person)---($address: Address)---($street: string)
* </pre>
*
* When the <tt>Person</tt> instance is passed to the validator, the
* property path is initially empty. When the <tt>$address</tt> property
* of that person is validated, the property path is "address". When
* the <tt>$street</tt> property of the related <tt>Address</tt> instance
* is validated, the property path is "address.street".
*
* Properties of objects are prefixed with a dot in the property path.
* Indices of arrays or objects implementing the {@link \ArrayAccess}
* interface are enclosed in brackets. For example, if the property in
* the previous example is <tt>$addresses</tt> and contains an array
* of <tt>Address</tt> instance, the property path generated for the
* <tt>$street</tt> property of one of these addresses is for example
* "addresses[0].street".
*
* @param string $subPath Optional. The suffix appended to the current
* property path.
*
* @return string The current property path. The result may be an empty
* string if the validator is currently validating the
* root value of the validation graph.
*/
public function getPropertyPath(string $subPath = '');
}