yii\validators\EachValidator - Yii2 类参考手册

Class yii\validators\EachValidator

Inheritanceyii\validators\EachValidator » yii\validators\Validator » yii\base\Component » yii\base\BaseObject
Implementsyii\base\Configurable
Available since version2.0.4

EachValidator validates an array by checking each of its elements against an embedded validation rule.

class MyModel extends Model
{
    public $categoryIDs = [];

    public function rules()
    {
        return [
            // checks if every category ID is an integer
            ['categoryIDs', 'each', 'rule' => ['integer']],
        ]
    }
}

Note: This validator will not work with inline validation rules in case of usage outside the model scope, e.g. via validate() method.

Note: EachValidator is meant to be used only in basic cases, you should consider usage of tabular input, using several models for the more complex case.

Public Properties

隐藏继承的属性 Hide inherited properties

属性Property类型 Type简介 Description定义在 Defined By
$allowMessageFromRule boolean Whether to use error message composed by validator declared via $rule if its validation fails. yii\validators\EachValidator
$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
$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
$rule array|yii\validators\Validator Definition of the validation rule, which should be used on array values. yii\validators\EachValidator
$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
$stopOnFirstError boolean Whether to stop validation once first error among attribute value elements is detected. yii\validators\EachValidator
$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

隐藏继承的方法 Hide inherited methods

方法 Method简介 Description定义在 Defined By
__call() Calls the named method which is not a class method. yii\base\BaseObject
__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 an object property. yii\base\BaseObject
__isset() Checks if a property is set, i.e. defined and not null. yii\base\BaseObject
__set() Sets value of an object property. yii\base\BaseObject
__unset() Sets an object property to null. yii\base\BaseObject
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\BaseObject
canSetProperty() Returns a value indicating whether a property can be set. yii\base\BaseObject
className() Returns the fully qualified name of this class. yii\base\BaseObject
clientValidateAttribute() Returns the JavaScript needed for performing client-side validation. yii\validators\Validator
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\Validator
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\BaseObject
hasProperty() Returns a value indicating whether a property is defined. yii\base\BaseObject
init() Initializes the object. yii\validators\EachValidator
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\EachValidator
validateAttributes() Validates the specified object. yii\validators\Validator

Protected Methods

隐藏继承的方法 Hide inherited methods

方法 Method简介 Description定义在 Defined 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\EachValidator

属性详情 Property Details

$allowMessageFromRule public property

Whether to use error message composed by validator declared via $rule if its validation fails. If enabled, error message specified for this validator itself will appear only if attribute value is not an array. If disabled, own error message value will be used always.

$rule public property

Definition of the validation rule, which should be used on array values. It should be specified in the same format as at yii\base\Model::rules(), except it should not contain attribute list as the first element. For example:

['integer']
['match', 'pattern' => '/[a-z]/is']

Please refer to yii\base\Model::rules() for more details.

$stopOnFirstError public property (available since version 2.0.11)

Whether to stop validation once first error among attribute value elements is detected. When enabled validation will produce single error message on attribute, when disabled - multiple error messages mya appear: one per each invalid value. Note that this option will affect only validateAttribute() value, while validateValue() will not be affected.

public boolean $stopOnFirstError true

方法详情 Method Details

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 ( )
validateAttribute() public method

Validates a single attribute.

Child classes must implement this method to provide the actual validation logic.

public void validateAttribute ( $model, $attribute )
$model yii\base\Model

The data model to be validated

$attribute string

The name of the attribute to be validated.

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.

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