Class yii\validators\BooleanValidator

All Classes | Properties | Methods
Inheritanceyii\validators\BooleanValidator » yii\validators\Validator » yii\base\Component » yii\base\BaseObject
Implementsyii\base\Configurable
Available since version2.0
Source Code https://github.com/yiisoft/yii2/blob/master/framework/validators/BooleanValidator.php

BooleanValidator checks if the attribute value is a boolean value.

Possible boolean values can be configured via the $trueValue and $falseValue properties. And the comparison can be either $strict or not.

Public Properties

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PropertyTypeDescriptionDefined By
$attributeNames array Attribute names. yii\validators\Validator
$attributes array|string Attributes to be validated by this validator. yii\validators\Validator
$behaviors yii\base\Behavior[] List of behaviors attached to this component yii\base\Component
$builtInValidators array List of built-in validators (name => class or configuration) yii\validators\Validator
$enableClientValidation boolean Whether to enable client-side validation for this validator. yii\validators\Validator
$except array|string Scenarios that the validator should not be applied to. yii\validators\Validator
$falseValue mixed The value representing false status. yii\validators\BooleanValidator
$isEmpty callable A PHP callable that replaces the default implementation of isEmpty(). yii\validators\Validator
$message string The user-defined error message. yii\validators\Validator
$on array|string Scenarios that the validator can be applied to. yii\validators\Validator
$skipOnEmpty boolean Whether this validation rule should be skipped if the attribute value is null or an empty string. yii\validators\Validator
$skipOnError boolean Whether this validation rule should be skipped if the attribute being validated already has some validation error according to some previous rules. yii\validators\Validator
$strict boolean Whether the comparison to $trueValue and $falseValue is strict. yii\validators\BooleanValidator
$trueValue mixed The value representing true status. yii\validators\BooleanValidator
$validationAttributes array List of attribute names. yii\validators\Validator
$when callable A PHP callable whose return value determines whether this validator should be applied. yii\validators\Validator
$whenClient string A JavaScript function name whose return value determines whether this validator should be applied on the client-side. yii\validators\Validator

Public Methods

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MethodDescriptionDefined By
__call() Calls the named method which is not a class method. yii\base\Component
__clone() This method is called after the object is created by cloning an existing one. yii\base\Component
__construct() Constructor. yii\base\BaseObject
__get() Returns the value of a component property. yii\base\Component
__isset() Checks if a property is set, i.e. defined and not null. yii\base\Component
__set() Sets the value of a component property. yii\base\Component
__unset() Sets a component property to be null. yii\base\Component
addError() Adds an error about the specified attribute to the model object. yii\validators\Validator
attachBehavior() Attaches a behavior to this component. yii\base\Component
attachBehaviors() Attaches a list of behaviors to the component. yii\base\Component
behaviors() Returns a list of behaviors that this component should behave as. yii\base\Component
canGetProperty() Returns a value indicating whether a property can be read. yii\base\Component
canSetProperty() Returns a value indicating whether a property can be set. yii\base\Component
className() Returns the fully qualified name of this class. yii\base\BaseObject
clientValidateAttribute() Returns the JavaScript needed for performing client-side validation. yii\validators\BooleanValidator
createValidator() Creates a validator object. yii\validators\Validator
detachBehavior() Detaches a behavior from the component. yii\base\Component
detachBehaviors() Detaches all behaviors from the component. yii\base\Component
ensureBehaviors() Makes sure that the behaviors declared in behaviors() are attached to this component. yii\base\Component
getAttributeNames() Returns cleaned attribute names without the ! character at the beginning. yii\validators\Validator
getBehavior() Returns the named behavior object. yii\base\Component
getBehaviors() Returns all behaviors attached to this component. yii\base\Component
getClientOptions() Returns the client-side validation options. yii\validators\BooleanValidator
getValidationAttributes() Returns a list of attributes this validator applies to. yii\validators\Validator
hasEventHandlers() Returns a value indicating whether there is any handler attached to the named event. yii\base\Component
hasMethod() Returns a value indicating whether a method is defined. yii\base\Component
hasProperty() Returns a value indicating whether a property is defined for this component. yii\base\Component
init() Initializes the object. yii\validators\BooleanValidator
isActive() Returns a value indicating whether the validator is active for the given scenario and attribute. yii\validators\Validator
isEmpty() Checks if the given value is empty. yii\validators\Validator
off() Detaches an existing event handler from this component. yii\base\Component
on() Attaches an event handler to an event. yii\base\Component
trigger() Triggers an event. yii\base\Component
validate() Validates a given value. yii\validators\Validator
validateAttribute() Validates a single attribute. yii\validators\Validator
validateAttributes() Validates the specified object. yii\validators\Validator

Protected Methods

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MethodDescriptionDefined By
formatMessage() Formats a mesage using the I18N, or simple strtr if \Yii::$app is not available. yii\validators\Validator
validateValue() Validates a value. yii\validators\BooleanValidator

Property Details

$falseValue public property

The value representing false status. Defaults to '0'.

public mixed $falseValue = '0'
$strict public property

Whether the comparison to $trueValue and $falseValue is strict. When this is true, the attribute value and type must both match those of $trueValue or $falseValue. Defaults to false, meaning only the value needs to be matched.

public boolean $strict = false
$trueValue public property

The value representing true status. Defaults to '1'.

public mixed $trueValue = '1'

Method Details

clientValidateAttribute() public method

Returns the JavaScript needed for performing client-side validation.

Calls getClientOptions() to generate options array for client-side validation.

You may override this method to return the JavaScript validation code if the validator can support client-side validation.

The following JavaScript variables are predefined and can be used in the validation code:

  • attribute: an object describing the the attribute being validated.
  • value: the value being validated.
  • messages: an array used to hold the validation error messages for the attribute.
  • deferred: an array used to hold deferred objects for asynchronous validation
  • $form: a jQuery object containing the form element

The attribute object contains the following properties:

  • id: a unique ID identifying the attribute (e.g. "loginform-username") in the form
  • name: attribute name or expression (e.g. "[0]content" for tabular input)
  • container: the jQuery selector of the container of the input field
  • input: the jQuery selector of the input field under the context of the form
  • error: the jQuery selector of the error tag under the context of the container
  • status: status of the input field, 0: empty, not entered before, 1: validated, 2: pending validation, 3: validating
public string|null clientValidateAttribute ( $model, $attribute, $view )
$model yii\base\Model

The data model being validated
$attribute string

The name of the attribute to be validated.
$view yii\web\View

The view object that is going to be used to render views or view files containing a model form with this validator applied.
return string|null

The client-side validation script. Null if the validator does not support client-side validation.
getClientOptions() public method

Returns the client-side validation options.

This method is usually called from clientValidateAttribute(). You may override this method to modify options that will be passed to the client-side validation.

public array getClientOptions ( $model, $attribute )
$model yii\base\Model

The model being validated
$attribute string

The attribute name being validated
return array

The client-side validation options
init() public method

Initializes the object.

This method is invoked at the end of the constructor after the object is initialized with the given configuration.

public void init ( )
validateValue() protected method

Validates a value.

A validator class can implement this method to support data validation out of the context of a data model.

protected array|null validateValue ( $value )
$value mixed

The data value to be validated.
return array|null

The error message and the array of parameters to be inserted into the error message. `php if (!$valid) {

return [$this->message, [
    'param1' => $this->param1,
    'formattedLimit' => Yii::$app->formatter->asShortSize($this->getSizeLimit()),
    'mimeTypes' => implode(', ', $this->mimeTypes),
    'param4' => 'etc...',
]];

}

return null; ` for this example message template can contain {param1}, {formattedLimit}, {mimeTypes}, {param4}

Null should be returned if the data is valid.
throws yii\base\NotSupportedException

if the validator does not supporting data validation without a model