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@ -7,6 +7,8 @@
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namespace yii\validators; |
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use Yii; |
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/** |
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* StringValidator validates that the attribute value is of certain length. |
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* |
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@ -46,19 +48,22 @@ class StringValidator extends Validator
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*/ |
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public $notEqual; |
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/** |
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* @var boolean whether the attribute value can be null or empty. Defaults to true, |
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* meaning that if the attribute is empty, it is considered valid. |
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* @var string the encoding of the string value to be validated (e.g. 'UTF-8'). |
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* If this property is not set, [[\yii\base\Application::charset]] will be used. |
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*/ |
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public $allowEmpty = true; |
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public $encoding; |
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/** |
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* @var mixed the encoding of the string value to be validated (e.g. 'UTF-8'). |
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* This property is used only when mbstring PHP extension is enabled. |
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* The value of this property will be used as the 2nd parameter of the |
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* mb_strlen() function. If this property is not set, the application charset |
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* will be used. If this property is set false, then strlen() will be used even |
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* if mbstring is enabled. |
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* Initializes the validator. |
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*/ |
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public $encoding; |
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public function init() |
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{ |
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parent::init(); |
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if ($this->encoding === null) { |
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$this->encoding = Yii::$app->charset; |
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} |
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} |
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/** |
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* Validates the attribute of the object. |
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@ -69,37 +74,46 @@ class StringValidator extends Validator
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public function validateAttribute($object, $attribute) |
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{ |
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$value = $object->$attribute; |
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if ($this->allowEmpty && $this->isEmpty($value)) { |
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return; |
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} |
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if (!is_string($value)) { |
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$message = ($this->message !== null) ? $this->message : \Yii::t('yii|{attribute} must be a string.'); |
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$message = ($this->message !== null) ? $this->message : Yii::t('yii|{attribute} must be a string.'); |
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$this->addError($object, $attribute, $message); |
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return; |
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} |
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if (function_exists('mb_strlen') && $this->encoding !== false) { |
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$length = mb_strlen($value, $this->encoding ? $this->encoding : \Yii::$app->charset); |
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} else { |
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$length = strlen($value); |
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} |
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$length = mb_strlen($value, $this->encoding); |
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if ($this->min !== null && $length < $this->min) { |
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$message = ($this->tooShort !== null) ? $this->tooShort : \Yii::t('yii|{attribute} is too short (minimum is {min} characters).'); |
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$message = ($this->tooShort !== null) ? $this->tooShort : Yii::t('yii|{attribute} should contain at least {min} characters.'); |
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$this->addError($object, $attribute, $message, array('{min}' => $this->min)); |
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} |
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if ($this->max !== null && $length > $this->max) { |
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$message = ($this->tooLong !== null) ? $this->tooLong : \Yii::t('yii|{attribute} is too long (maximum is {max} characters).'); |
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$message = ($this->tooLong !== null) ? $this->tooLong : Yii::t('yii|{attribute} should contain at most {max} characters.'); |
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$this->addError($object, $attribute, $message, array('{max}' => $this->max)); |
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} |
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if ($this->is !== null && $length !== $this->is) { |
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$message = ($this->notEqual !== null) ? $this->notEqual : \Yii::t('yii|{attribute} is of the wrong length (should be {length} characters).'); |
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$message = ($this->notEqual !== null) ? $this->notEqual : Yii::t('yii|{attribute} should contain {length} characters.'); |
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$this->addError($object, $attribute, $message, array('{length}' => $this->is)); |
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} |
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} |
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/** |
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* Validates the given value. |
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* @param mixed $value the value to be validated. |
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* @return boolean whether the value is valid. |
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*/ |
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public function validateValue($value) |
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{ |
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if (!is_string($value)) { |
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return false; |
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} |
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$length = mb_strlen($value, $this->encoding); |
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return ($this->min === null || $length >= $this->min) |
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&& ($this->max === null || $length <= $this->max) |
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&& ($this->is === null || $length === $this->is); |
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} |
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/** |
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* Returns the JavaScript needed for performing client-side validation. |
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* @param \yii\base\Model $object the data object being validated |
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* @param string $attribute the name of the attribute to be validated. |
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@ -111,7 +125,7 @@ class StringValidator extends Validator
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$value = $object->$attribute; |
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if (($notEqual = $this->notEqual) === null) { |
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$notEqual = \Yii::t('yii|{attribute} is of the wrong length (should be {length} characters).'); |
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$notEqual = Yii::t('yii|{attribute} should contain {length} characters.'); |
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} |
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$notEqual = strtr($notEqual, array( |
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'{attribute}' => $label, |
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@ -120,7 +134,7 @@ class StringValidator extends Validator
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)); |
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if (($tooShort = $this->tooShort) === null) { |
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$tooShort = \Yii::t('yii|{attribute} is too short (minimum is {min} characters).'); |
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$tooShort = Yii::t('yii|{attribute} should contain at least {min} characters.'); |
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} |
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$tooShort = strtr($tooShort, array( |
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'{attribute}' => $label, |
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@ -129,7 +143,7 @@ class StringValidator extends Validator
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)); |
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if (($tooLong = $this->tooLong) === null) { |
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$tooLong = \Yii::t('yii|{attribute} is too long (maximum is {max} characters).'); |
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$tooLong = Yii::t('yii|{attribute} should contain at most {max} characters.'); |
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} |
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$tooLong = strtr($tooLong, array( |
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'{attribute}' => $label, |
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Qiang Xue
12 years ago