Trait ValidatorAwareTrait
A trait that provides methods for building and interacting with Validators.
This trait is useful when building ORM like features where the implementing class wants to build and customize a variety of validator instances.
This trait expects that classes including it define three constants:
DEFAULT_VALIDATOR- The default validator name.VALIDATOR_PROVIDER_NAME- The provider name the including class is assigned in validators.BUILD_VALIDATOR_EVENT- The name of the event to be triggred when validators are built.
If the including class also implements events the Model.buildValidator event
will be triggered when validators are created.
Property Summary
-
$_validatorClass protected
stringValidator class.
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$_validators protected
Cake\Validation\Validator[]A list of validation objects indexed by name
Method Summary
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createValidator() protected
Creates a validator using a custom method inside your class.
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getValidator() public
Returns the validation rules tagged with $name. It is possible to have multiple different named validation sets, this is useful when you need to use varying rules when saving from different routines in your system.
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hasValidator() public
Checks whether or not a validator has been set.
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setValidator() public
This method stores a custom validator under the given name.
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validationDefault() public
Returns the default validator object. Subclasses can override this function to add a default validation set to the validator object.
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validationMethodExists() protected
Checks if validation method exists.
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validator() public deprecated
Returns the validation rules tagged with $name. It is possible to have multiple different named validation sets, this is useful when you need to use varying rules when saving from different routines in your system.
Method Detail
createValidator() ¶ protected
createValidator(string $name): Cake\Validation\ValidatorCreates a validator using a custom method inside your class.
This method is used only to build a new validator and it does not store it in your object. If you want to build and reuse validators, use getValidator() method instead.
Parameters
-
string$name The name of the validation set to create.
Returns
Cake\Validation\ValidatorThrows
RuntimeExceptiongetValidator() ¶ public
getValidator(string|null $name = null): Cake\Validation\ValidatorReturns the validation rules tagged with $name. It is possible to have multiple different named validation sets, this is useful when you need to use varying rules when saving from different routines in your system.
If a validator has not been set earlier, this method will build a valiator using a method inside your class.
For example, if you wish to create a validation set called 'forSubscription', you will need to create a method in your Table subclass as follows:
public function validationForSubscription($validator)
{
return $validator
->add('email', 'valid-email', ['rule' => 'email'])
->add('password', 'valid', ['rule' => 'notBlank'])
->requirePresence('username');
}
$validator = $this->getValidator('forSubscription');You can implement the method in validationDefault in your Table subclass
should you wish to have a validation set that applies in cases where no other
set is specified.
If a $name argument has not been provided, the default validator will be returned.
You can configure your default validator name in a DEFAULT_VALIDATOR
class constant.
Parameters
-
string|null$name optional The name of the validation set to return.
Returns
Cake\Validation\ValidatorhasValidator() ¶ public
hasValidator(string $name): boolChecks whether or not a validator has been set.
Parameters
-
string$name The name of a validator.
Returns
boolsetValidator() ¶ public
setValidator(string $name, Cake\Validation\Validator $validator): $thisThis method stores a custom validator under the given name.
You can build the object by yourself and store it in your object:
$validator = new \Cake\Validation\Validator($table);
$validator
->add('email', 'valid-email', ['rule' => 'email'])
->add('password', 'valid', ['rule' => 'notBlank'])
->allowEmpty('bio');
$this->setValidator('forSubscription', $validator);Parameters
-
string$name The name of a validator to be set.
-
Cake\Validation\Validator$validator Validator object to be set.
Returns
$thisvalidationDefault() ¶ public
validationDefault(Cake\Validation\Validator $validator): Cake\Validation\ValidatorReturns the default validator object. Subclasses can override this function to add a default validation set to the validator object.
Parameters
-
Cake\Validation\Validator$validator The validator that can be modified to add some rules to it.
Returns
Cake\Validation\ValidatorvalidationMethodExists() ¶ protected
validationMethodExists(string $name): boolChecks if validation method exists.
Parameters
-
string$name Validation method name.
Returns
boolvalidator() ¶ public
validator(string|null $name = null, Cake\Validation\Validator|null $validator = null): Cake\Validation\ValidatorReturns the validation rules tagged with $name. It is possible to have multiple different named validation sets, this is useful when you need to use varying rules when saving from different routines in your system.
There are two different ways of creating and naming validation sets: by creating a new method inside your own Table subclass, or by building the validator object yourself and storing it using this method.
For example, if you wish to create a validation set called 'forSubscription', you will need to create a method in your Table subclass as follows:
public function validationForSubscription($validator)
{
return $validator
->add('email', 'valid-email', ['rule' => 'email'])
->add('password', 'valid', ['rule' => 'notBlank'])
->requirePresence('username');
}Otherwise, you can build the object by yourself and store it in the Table object:
$validator = new \Cake\Validation\Validator($table);
$validator
->add('email', 'valid-email', ['rule' => 'email'])
->add('password', 'valid', ['rule' => 'notBlank'])
->allowEmpty('bio');
$table->validator('forSubscription', $validator);You can implement the method in validationDefault in your Table subclass
should you wish to have a validation set that applies in cases where no other
set is specified.
Parameters
-
string|null$name optional the name of the validation set to return
-
Cake\Validation\Validator|null$validator optional The validator instance to store, use null to get a validator.
Returns
Cake\Validation\ValidatorThrows
RuntimeException