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275 lines
11 KiB
PHP
275 lines
11 KiB
PHP
<?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\InvalidConfigException;
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use yii\helpers\Html;
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/**
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* CompareValidator compares the specified attribute value with another value.
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*
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* The value being compared with can be another attribute value
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* (specified via [[compareAttribute]]) or a constant (specified via
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* [[compareValue]]). When both are specified, the latter takes
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* precedence. If neither is specified, the attribute will be compared
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* with another attribute whose name is by appending "_repeat" to the source
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* attribute name.
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*
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* CompareValidator supports different comparison operators, specified
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* via the [[operator]] property.
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*
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* The default comparison function is based on string values, which means the values
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* are compared byte by byte. When comparing numbers, make sure to set the [[$type]]
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* to [[TYPE_NUMBER]] to enable numeric comparison.
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @since 2.0
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*/
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class CompareValidator extends Validator
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{
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/**
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* Constant for specifying the comparison [[type]] by numeric values.
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* @since 2.0.11
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* @see type
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*/
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const TYPE_STRING = 'string';
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/**
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* Constant for specifying the comparison [[type]] by numeric values.
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* @since 2.0.11
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* @see type
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*/
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const TYPE_NUMBER = 'number';
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/**
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* @var string the name of the attribute to be compared with. When both this property
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* and [[compareValue]] are set, the latter takes precedence. If neither is set,
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* it assumes the comparison is against another attribute whose name is formed by
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* appending '_repeat' to the attribute being validated. For example, if 'password' is
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* being validated, then the attribute to be compared would be 'password_repeat'.
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* @see compareValue
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*/
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public $compareAttribute;
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/**
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* @var mixed the constant value to be compared with. When both this property
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* and [[compareAttribute]] are set, this property takes precedence.
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* @see compareAttribute
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*/
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public $compareValue;
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/**
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* @var string the type of the values being compared. The follow types are supported:
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*
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* - [[TYPE_STRING|string]]: the values are being compared as strings. No conversion will be done before comparison.
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* - [[TYPE_NUMBER|number]]: the values are being compared as numbers. String values will be converted into numbers before comparison.
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*/
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public $type = self::TYPE_STRING;
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/**
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* @var string the operator for comparison. The following operators are supported:
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*
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* - `==`: check if two values are equal. The comparison is done is non-strict mode.
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* - `===`: check if two values are equal. The comparison is done is strict mode.
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* - `!=`: check if two values are NOT equal. The comparison is done is non-strict mode.
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* - `!==`: check if two values are NOT equal. The comparison is done is strict mode.
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* - `>`: check if value being validated is greater than the value being compared with.
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* - `>=`: check if value being validated is greater than or equal to the value being compared with.
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* - `<`: check if value being validated is less than the value being compared with.
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* - `<=`: check if value being validated is less than or equal to the value being compared with.
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*
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* When you want to compare numbers, make sure to also set [[type]] to `number`.
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*/
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public $operator = '==';
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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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* - `{compareValue}`: the value or the attribute label to be compared with
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* - `{compareAttribute}`: the label of the attribute to be compared with
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* - `{compareValueOrAttribute}`: the value or the attribute label to be compared with
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*/
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public $message;
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/**
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* {@inheritdoc}
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*/
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public function init()
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{
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parent::init();
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if ($this->message === null) {
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switch ($this->operator) {
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case '==':
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case '===':
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$this->message = Yii::t('yii', '{attribute} must be equal to "{compareValueOrAttribute}".');
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break;
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case '!=':
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case '!==':
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$this->message = Yii::t('yii', '{attribute} must not be equal to "{compareValueOrAttribute}".');
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break;
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case '>':
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$this->message = Yii::t('yii', '{attribute} must be greater than "{compareValueOrAttribute}".');
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break;
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case '>=':
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$this->message = Yii::t('yii', '{attribute} must be greater than or equal to "{compareValueOrAttribute}".');
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break;
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case '<':
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$this->message = Yii::t('yii', '{attribute} must be less than "{compareValueOrAttribute}".');
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break;
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case '<=':
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$this->message = Yii::t('yii', '{attribute} must be less than or equal to "{compareValueOrAttribute}".');
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break;
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default:
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throw new InvalidConfigException("Unknown operator: {$this->operator}");
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}
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function validateAttribute($model, $attribute)
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{
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$value = $model->$attribute;
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if (is_array($value)) {
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$this->addError($model, $attribute, Yii::t('yii', '{attribute} is invalid.'));
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return;
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}
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if ($this->compareValue !== null) {
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if ($this->compareValue instanceof \Closure) {
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$this->compareValue = call_user_func($this->compareValue);
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}
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$compareLabel = $compareValue = $compareValueOrAttribute = $this->compareValue;
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} else {
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$compareAttribute = $this->compareAttribute === null ? $attribute . '_repeat' : $this->compareAttribute;
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$compareValue = $model->$compareAttribute;
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$compareLabel = $compareValueOrAttribute = $model->getAttributeLabel($compareAttribute);
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}
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if (!$this->compareValues($this->operator, $this->type, $value, $compareValue)) {
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$this->addError($model, $attribute, $this->message, [
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'compareAttribute' => $compareLabel,
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'compareValue' => $compareValue,
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'compareValueOrAttribute' => $compareValueOrAttribute,
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]);
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}
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}
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/**
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* {@inheritdoc}
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*/
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protected function validateValue($value)
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{
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if ($this->compareValue === null) {
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throw new InvalidConfigException('CompareValidator::compareValue must be set.');
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}
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if ($this->compareValue instanceof \Closure) {
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$this->compareValue = call_user_func($this->compareValue);
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}
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if (!$this->compareValues($this->operator, $this->type, $value, $this->compareValue)) {
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return [$this->message, [
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'compareAttribute' => $this->compareValue,
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'compareValue' => $this->compareValue,
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'compareValueOrAttribute' => $this->compareValue,
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]];
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}
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return null;
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}
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/**
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* Compares two values with the specified operator.
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* @param string $operator the comparison operator
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* @param string $type the type of the values being compared
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* @param mixed $value the value being compared
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* @param mixed $compareValue another value being compared
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* @return bool whether the comparison using the specified operator is true.
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*/
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protected function compareValues($operator, $type, $value, $compareValue)
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{
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if ($type === self::TYPE_NUMBER) {
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$value = (float) $value;
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$compareValue = (float) $compareValue;
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} else {
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$value = (string) $value;
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$compareValue = (string) $compareValue;
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}
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switch ($operator) {
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case '==':
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return $value == $compareValue;
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case '===':
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return $value === $compareValue;
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case '!=':
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return $value != $compareValue;
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case '!==':
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return $value !== $compareValue;
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case '>':
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return $value > $compareValue;
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case '>=':
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return $value >= $compareValue;
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case '<':
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return $value < $compareValue;
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case '<=':
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return $value <= $compareValue;
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default:
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return false;
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function clientValidateAttribute($model, $attribute, $view)
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{
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if ($this->compareValue != null && $this->compareValue instanceof \Closure) {
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$this->compareValue = call_user_func($this->compareValue);
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}
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ValidationAsset::register($view);
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$options = $this->getClientOptions($model, $attribute);
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return 'yii.validation.compare(value, messages, ' . json_encode($options, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE) . ', $form);';
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}
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/**
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* {@inheritdoc}
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*/
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public function getClientOptions($model, $attribute)
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{
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$options = [
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'operator' => $this->operator,
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'type' => $this->type,
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];
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if ($this->compareValue !== null) {
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$options['compareValue'] = $this->compareValue;
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$compareLabel = $compareValue = $compareValueOrAttribute = $this->compareValue;
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} else {
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$compareAttribute = $this->compareAttribute === null ? $attribute . '_repeat' : $this->compareAttribute;
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$compareValue = $model->getAttributeLabel($compareAttribute);
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$options['compareAttribute'] = Html::getInputId($model, $compareAttribute);
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$options['compareAttributeName'] = Html::getInputName($model, $compareAttribute);
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$compareLabel = $compareValueOrAttribute = $model->getAttributeLabel($compareAttribute);
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}
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if ($this->skipOnEmpty) {
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$options['skipOnEmpty'] = 1;
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}
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$options['message'] = $this->formatMessage($this->message, [
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'attribute' => $model->getAttributeLabel($attribute),
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'compareAttribute' => $compareLabel,
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'compareValue' => $compareValue,
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'compareValueOrAttribute' => $compareValueOrAttribute,
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]);
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return $options;
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}
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}
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