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<?php |
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/** |
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* @link http://www.yiiframework.com/ |
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* @copyright Copyright (c) 2008 Yii Software LLC |
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* @license http://www.yiiframework.com/license/ |
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*/ |
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namespace yii\validators; |
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use Yii; |
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use yii\base\Component; |
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use yii\base\NotSupportedException; |
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/** |
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* Validator is the base class for all validators. |
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* |
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* Child classes should override the [[validateValue()]] and/or [[validateAttribute()]] methods to provide the actual |
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* logic of performing data validation. Child classes may also override [[clientValidateAttribute()]] |
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* to provide client-side validation support. |
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* |
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* Validator declares a set of [[builtInValidators|built-in validators]] which can |
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* be referenced using short names. They are listed as follows: |
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* |
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* - `boolean`: [[BooleanValidator]] |
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* - `captcha`: [[\yii\captcha\CaptchaValidator]] |
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* - `compare`: [[CompareValidator]] |
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* - `date`: [[DateValidator]] |
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* - `datetime`: [[DateValidator]] |
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* - `time`: [[DateValidator]] |
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* - `default`: [[DefaultValueValidator]] |
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* - `double`: [[NumberValidator]] |
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* - `each`: [[EachValidator]] |
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* - `email`: [[EmailValidator]] |
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* - `exist`: [[ExistValidator]] |
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* - `file`: [[FileValidator]] |
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* - `filter`: [[FilterValidator]] |
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* - `image`: [[ImageValidator]] |
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* - `in`: [[RangeValidator]] |
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* - `integer`: [[NumberValidator]] |
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* - `match`: [[RegularExpressionValidator]] |
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* - `required`: [[RequiredValidator]] |
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* - `safe`: [[SafeValidator]] |
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* - `string`: [[StringValidator]] |
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* - `trim`: [[FilterValidator]] |
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* - `unique`: [[UniqueValidator]] |
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* - `url`: [[UrlValidator]] |
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* - `ip`: [[IpValidator]] |
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* |
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* For more details and usage information on Validator, see the [guide article on validators](guide:input-validation). |
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* |
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* @property array $attributeNames cleaned attribute names without the `!` character at the beginning. This property is read-only. |
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* |
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* @author Qiang Xue <[email protected]> |
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* @since 2.0 |
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*/ |
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class Validator extends Component |
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{ |
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/** |
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* @var array list of built-in validators (name => class or configuration) |
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*/ |
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public static $builtInValidators = [ |
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'boolean' => 'yii\validators\BooleanValidator', |
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'captcha' => 'yii\captcha\CaptchaValidator', |
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'compare' => 'yii\validators\CompareValidator', |
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'date' => 'yii\validators\DateValidator', |
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'datetime' => [ |
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'class' => 'yii\validators\DateValidator', |
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'type' => DateValidator::TYPE_DATETIME, |
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], |
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'time' => [ |
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'class' => 'yii\validators\DateValidator', |
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'type' => DateValidator::TYPE_TIME, |
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], |
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'default' => 'yii\validators\DefaultValueValidator', |
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'double' => 'yii\validators\NumberValidator', |
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'each' => 'yii\validators\EachValidator', |
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'email' => 'yii\validators\EmailValidator', |
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'exist' => 'yii\validators\ExistValidator', |
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'file' => 'yii\validators\FileValidator', |
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'filter' => 'yii\validators\FilterValidator', |
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'image' => 'yii\validators\ImageValidator', |
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'in' => 'yii\validators\RangeValidator', |
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'integer' => [ |
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'class' => 'yii\validators\NumberValidator', |
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'integerOnly' => true, |
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], |
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'match' => 'yii\validators\RegularExpressionValidator', |
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'number' => 'yii\validators\NumberValidator', |
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'required' => 'yii\validators\RequiredValidator', |
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'safe' => 'yii\validators\SafeValidator', |
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'string' => 'yii\validators\StringValidator', |
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'trim' => [ |
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'class' => 'yii\validators\FilterValidator', |
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'filter' => 'trim', |
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'skipOnArray' => true, |
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], |
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'unique' => 'yii\validators\UniqueValidator', |
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'url' => 'yii\validators\UrlValidator', |
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'ip' => 'yii\validators\IpValidator', |
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]; |
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/** |
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* @var array|string attributes to be validated by this validator. For multiple attributes, |
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* please specify them as an array; for single attribute, you may use either a string or an array. |
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*/ |
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public $attributes = []; |
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/** |
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* @var string the user-defined error message. It may contain the following placeholders which |
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* will be replaced accordingly by the validator: |
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* |
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* - `{attribute}`: the label of the attribute being validated |
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* - `{value}`: the value of the attribute being validated |
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* |
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* Note that some validators may introduce other properties for error messages used when specific |
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* validation conditions are not met. Please refer to individual class API documentation for details |
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* about these properties. By convention, this property represents the primary error message |
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* used when the most important validation condition is not met. |
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*/ |
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public $message; |
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/** |
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* @var array|string scenarios that the validator can be applied to. For multiple scenarios, |
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* please specify them as an array; for single scenario, you may use either a string or an array. |
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*/ |
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public $on = []; |
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/** |
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* @var array|string scenarios that the validator should not be applied to. For multiple scenarios, |
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* please specify them as an array; for single scenario, you may use either a string or an array. |
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*/ |
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public $except = []; |
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/** |
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* @var bool whether this validation rule should be skipped if the attribute being validated |
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* already has some validation error according to some previous rules. Defaults to true. |
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*/ |
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public $skipOnError = true; |
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/** |
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* @var bool whether this validation rule should be skipped if the attribute value |
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* is null or an empty string. |
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*/ |
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public $skipOnEmpty = true; |
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/** |
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* @var bool whether to enable client-side validation for this validator. |
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* The actual client-side validation is done via the JavaScript code returned |
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* by [[clientValidateAttribute()]]. If that method returns null, even if this property |
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* is true, no client-side validation will be done by this validator. |
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*/ |
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public $enableClientValidation = true; |
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/** |
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* @var callable a PHP callable that replaces the default implementation of [[isEmpty()]]. |
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* If not set, [[isEmpty()]] will be used to check if a value is empty. The signature |
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* of the callable should be `function ($value)` which returns a boolean indicating |
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* whether the value is empty. |
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*/ |
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public $isEmpty; |
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/** |
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* @var callable a PHP callable whose return value determines whether this validator should be applied. |
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* The signature of the callable should be `function ($model, $attribute)`, where `$model` and `$attribute` |
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* refer to the model and the attribute currently being validated. The callable should return a boolean value. |
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* |
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* This property is mainly provided to support conditional validation on the server-side. |
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* If this property is not set, this validator will be always applied on the server-side. |
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* |
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* The following example will enable the validator only when the country currently selected is USA: |
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* |
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* ```php |
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* function ($model) { |
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* return $model->country == Country::USA; |
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* } |
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* ``` |
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* |
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* @see whenClient |
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*/ |
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public $when; |
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/** |
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* @var string a JavaScript function name whose return value determines whether this validator should be applied |
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* on the client-side. The signature of the function should be `function (attribute, value)`, where |
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* `attribute` is an object describing the attribute being validated (see [[clientValidateAttribute()]]) |
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* and `value` the current value of the attribute. |
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* |
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* This property is mainly provided to support conditional validation on the client-side. |
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* If this property is not set, this validator will be always applied on the client-side. |
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* |
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* The following example will enable the validator only when the country currently selected is USA: |
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* |
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* ```javascript |
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* function (attribute, value) { |
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* return $('#country').val() === 'USA'; |
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* } |
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* ``` |
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* |
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* @see when |
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*/ |
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public $whenClient; |
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/** |
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* Creates a validator object. |
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* @param string|\Closure $type the validator type. This can be either: |
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* * a built-in validator name listed in [[builtInValidators]]; |
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* * a method name of the model class; |
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* * an anonymous function; |
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* * a validator class name. |
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* @param \yii\base\Model $model the data model to be validated. |
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* @param array|string $attributes list of attributes to be validated. This can be either an array of |
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* the attribute names or a string of comma-separated attribute names. |
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* @param array $params initial values to be applied to the validator properties. |
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* @return Validator the validator |
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*/ |
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public static function createValidator($type, $model, $attributes, $params = []) |
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{ |
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$params['attributes'] = $attributes; |
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if ($type instanceof \Closure || $model->hasMethod($type)) { |
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// method-based validator |
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$params['class'] = __NAMESPACE__ . '\InlineValidator'; |
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$params['method'] = $type; |
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} else { |
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if (isset(static::$builtInValidators[$type])) { |
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$type = static::$builtInValidators[$type]; |
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} |
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if (is_array($type)) { |
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$params = array_merge($type, $params); |
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} else { |
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$params['class'] = $type; |
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} |
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} |
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return Yii::createObject($params); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function init() |
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{ |
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parent::init(); |
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$this->attributes = (array) $this->attributes; |
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$this->on = (array) $this->on; |
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$this->except = (array) $this->except; |
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} |
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/** |
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* Validates the specified object. |
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* @param \yii\base\Model $model the data model being validated |
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* @param array|null $attributes the list of attributes to be validated. |
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* Note that if an attribute is not associated with the validator - it will be |
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* ignored. If this parameter is null, every attribute listed in [[attributes]] will be validated. |
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*/ |
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public function validateAttributes($model, $attributes = null) |
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{ |
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if (is_array($attributes)) { |
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$newAttributes = []; |
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foreach ($attributes as $attribute) { |
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if (in_array($attribute, $this->getAttributeNames(), true)) { |
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$newAttributes[] = $attribute; |
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} |
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} |
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$attributes = $newAttributes; |
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} else { |
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$attributes = $this->getAttributeNames(); |
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} |
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foreach ($attributes as $attribute) { |
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$skip = $this->skipOnError && $model->hasErrors($attribute) |
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|| $this->skipOnEmpty && $this->isEmpty($model->$attribute); |
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if (!$skip) { |
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if ($this->when === null || call_user_func($this->when, $model, $attribute)) { |
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$this->validateAttribute($model, $attribute); |
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} |
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} |
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} |
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} |
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/** |
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* Validates a single attribute. |
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* Child classes must implement this method to provide the actual validation logic. |
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* @param \yii\base\Model $model the data model to be validated |
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* @param string $attribute the name of the attribute to be validated. |
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*/ |
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public function validateAttribute($model, $attribute) |
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{ |
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$result = $this->validateValue($model->$attribute); |
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if (!empty($result)) { |
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$this->addError($model, $attribute, $result[0], $result[1]); |
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} |
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} |
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/** |
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* Validates a given value. |
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* You may use this method to validate a value out of the context of a data model. |
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* @param mixed $value the data value to be validated. |
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* @param string $error the error message to be returned, if the validation fails. |
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* @return bool whether the data is valid. |
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*/ |
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public function validate($value, &$error = null) |
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{ |
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$result = $this->validateValue($value); |
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if (empty($result)) { |
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return true; |
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} |
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list($message, $params) = $result; |
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$params['attribute'] = Yii::t('yii', 'the input value'); |
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79 |
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if (is_array($value)) { |
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$params['value'] = 'array()'; |
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} elseif (is_object($value)) { |
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5 |
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$params['value'] = 'object'; |
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} else { |
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69 |
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$params['value'] = $value; |
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} |
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79 |
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$error = $this->formatMessage($message, $params); |
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79 |
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return false; |
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} |
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/** |
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* Validates a value. |
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* A validator class can implement this method to support data validation out of the context of a data model. |
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* @param mixed $value the data value to be validated. |
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* @return array|null the error message and the parameters to be inserted into the error message. |
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* Null should be returned if the data is valid. |
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* @throws NotSupportedException if the validator does not supporting data validation without a model |
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*/ |
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1 |
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protected function validateValue($value) |
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{ |
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1 |
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throw new NotSupportedException(get_class($this) . ' does not support validateValue().'); |
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} |
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/** |
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328
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* Returns the JavaScript needed for performing client-side validation. |
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* |
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* Calls [[getClientOptions()]] to generate options array for client-side validation. |
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* |
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332
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* You may override this method to return the JavaScript validation code if |
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333
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* the validator can support client-side validation. |
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* |
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335
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* The following JavaScript variables are predefined and can be used in the validation code: |
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336
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* |
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337
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* - `attribute`: an object describing the the attribute being validated. |
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338
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* - `value`: the value being validated. |
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339
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* - `messages`: an array used to hold the validation error messages for the attribute. |
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340
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* - `deferred`: an array used to hold deferred objects for asynchronous validation |
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341
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* - `$form`: a jQuery object containing the form element |
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342
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* |
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343
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* The `attribute` object contains the following properties: |
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344
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* - `id`: a unique ID identifying the attribute (e.g. "loginform-username") in the form |
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345
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* - `name`: attribute name or expression (e.g. "[0]content" for tabular input) |
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346
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* - `container`: the jQuery selector of the container of the input field |
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347
|
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* - `input`: the jQuery selector of the input field under the context of the form |
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348
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* - `error`: the jQuery selector of the error tag under the context of the container |
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349
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* - `status`: status of the input field, 0: empty, not entered before, 1: validated, 2: pending validation, 3: validating |
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350
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* |
|
351
|
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* @param \yii\base\Model $model the data model being validated |
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352
|
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* @param string $attribute the name of the attribute to be validated. |
|
353
|
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* @param \yii\web\View $view the view object that is going to be used to render views or view files |
|
354
|
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|
* containing a model form with this validator applied. |
|
355
|
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|
* @return string|null the client-side validation script. Null if the validator does not support |
|
356
|
|
|
* client-side validation. |
|
357
|
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|
* @see getClientOptions() |
|
358
|
|
|
* @see \yii\widgets\ActiveForm::enableClientValidation |
|
359
|
|
|
*/ |
|
360
|
1 |
|
public function clientValidateAttribute($model, $attribute, $view) |
|
361
|
|
|
{ |
|
362
|
1 |
|
return null; |
|
363
|
|
|
} |
|
364
|
|
|
|
|
365
|
|
|
/** |
|
366
|
|
|
* Returns the client-side validation options. |
|
367
|
|
|
* This method is usually called from [[clientValidateAttribute()]]. You may override this method to modify options |
|
368
|
|
|
* that will be passed to the client-side validation. |
|
369
|
|
|
* @param \yii\base\Model $model the model being validated |
|
370
|
|
|
* @param string $attribute the attribute name being validated |
|
371
|
|
|
* @return array the client-side validation options |
|
372
|
|
|
* @since 2.0.11 |
|
373
|
|
|
*/ |
|
374
|
|
|
public function getClientOptions($model, $attribute) |
|
375
|
|
|
{ |
|
376
|
|
|
return []; |
|
377
|
|
|
} |
|
378
|
|
|
|
|
379
|
|
|
/** |
|
380
|
|
|
* Returns a value indicating whether the validator is active for the given scenario and attribute. |
|
381
|
|
|
* |
|
382
|
|
|
* A validator is active if |
|
383
|
|
|
* |
|
384
|
|
|
* - the validator's `on` property is empty, or |
|
385
|
|
|
* - the validator's `on` property contains the specified scenario |
|
386
|
|
|
* |
|
387
|
|
|
* @param string $scenario scenario name |
|
388
|
|
|
* @return bool whether the validator applies to the specified scenario. |
|
389
|
|
|
*/ |
|
390
|
26 |
|
public function isActive($scenario) |
|
391
|
|
|
{ |
|
392
|
26 |
|
return !in_array($scenario, $this->except, true) && (empty($this->on) || in_array($scenario, $this->on, true)); |
|
393
|
|
|
} |
|
394
|
|
|
|
|
395
|
|
|
/** |
|
396
|
|
|
* Adds an error about the specified attribute to the model object. |
|
397
|
|
|
* This is a helper method that performs message selection and internationalization. |
|
398
|
|
|
* @param \yii\base\Model $model the data model being validated |
|
399
|
|
|
* @param string $attribute the attribute being validated |
|
400
|
|
|
* @param string $message the error message |
|
401
|
|
|
* @param array $params values for the placeholders in the error message |
|
402
|
|
|
*/ |
|
403
|
92 |
|
public function addError($model, $attribute, $message, $params = []) |
|
404
|
|
|
{ |
|
405
|
92 |
|
$params['attribute'] = $model->getAttributeLabel($attribute); |
|
406
|
92 |
|
if (!isset($params['value'])) { |
|
407
|
92 |
|
$value = $model->$attribute; |
|
408
|
92 |
|
if (is_array($value)) { |
|
409
|
28 |
|
$params['value'] = 'array()'; |
|
410
|
90 |
|
} elseif (is_object($value) && !method_exists($value, '__toString')) { |
|
411
|
1 |
|
$params['value'] = '(object)'; |
|
412
|
|
|
} else { |
|
413
|
90 |
|
$params['value'] = $value; |
|
414
|
|
|
} |
|
415
|
|
|
} |
|
416
|
92 |
|
$model->addError($attribute, $this->formatMessage($message, $params)); |
|
417
|
92 |
|
} |
|
418
|
|
|
|
|
419
|
|
|
/** |
|
420
|
|
|
* Checks if the given value is empty. |
|
421
|
|
|
* A value is considered empty if it is null, an empty array, or an empty string. |
|
422
|
|
|
* Note that this method is different from PHP empty(). It will return false when the value is 0. |
|
423
|
|
|
* @param mixed $value the value to be checked |
|
424
|
|
|
* @return bool whether the value is empty |
|
425
|
|
|
*/ |
|
426
|
28 |
|
public function isEmpty($value) |
|
427
|
|
|
{ |
|
428
|
28 |
|
if ($this->isEmpty !== null) { |
|
429
|
|
|
return call_user_func($this->isEmpty, $value); |
|
430
|
|
|
} else { |
|
431
|
28 |
|
return $value === null || $value === [] || $value === ''; |
|
432
|
|
|
} |
|
433
|
|
|
} |
|
434
|
|
|
|
|
435
|
|
|
/** |
|
436
|
|
|
* Formats a mesage using the I18N, or simple strtr if `\Yii::$app` is not available. |
|
437
|
|
|
* @param string $message |
|
438
|
|
|
* @param array $params |
|
439
|
|
|
* @since 2.0.12 |
|
440
|
|
|
* @return string |
|
441
|
|
|
*/ |
|
442
|
171 |
|
protected function formatMessage($message, $params) |
|
443
|
|
|
{ |
|
444
|
171 |
|
if (Yii::$app !== null) { |
|
445
|
50 |
|
return \Yii::$app->getI18n()->format($message, $params, Yii::$app->language); |
|
446
|
|
|
} |
|
447
|
|
|
|
|
448
|
121 |
|
$placeholders = []; |
|
449
|
121 |
|
foreach ((array) $params as $name => $value) { |
|
450
|
121 |
|
$placeholders['{' . $name . '}'] = $value; |
|
451
|
|
|
} |
|
452
|
|
|
|
|
453
|
121 |
|
return ($placeholders === []) ? $message : strtr($message, $placeholders); |
|
454
|
|
|
} |
|
455
|
|
|
|
|
456
|
|
|
/** |
|
457
|
|
|
* Returns cleaned attribute names without the `!` character at the beginning |
|
458
|
|
|
* @return array attribute names. |
|
459
|
|
|
* @since 2.0.12 |
|
460
|
|
|
*/ |
|
461
|
|
|
public function getAttributeNames() |
|
462
|
|
|
{ |
|
463
|
30 |
|
return array_map(function($attribute) { |
|
464
|
29 |
|
return ltrim($attribute, '!'); |
|
465
|
30 |
|
}, $this->attributes); |
|
466
|
|
|
} |
|
467
|
|
|
} |
|
468
|
|
|
|
rob006 /
yii2-dev
