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Final Class Yiisoft\Yii\Gii\Validator\ClassExistsHandler

All Classes | Methods
InheritanceYiisoft\Yii\Gii\Validator\ClassExistsHandler
ImplementsYiisoft\Validator\RuleHandlerInterface

An inline validator that checks if the attribute value refers to an existing class name.

Public Methods

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Method Description Defined By
validate() Yiisoft\Yii\Gii\Validator\ClassExistsHandler

Method Details

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validate() public method

public \Yiisoft\Validator\Result validate ( mixed $value, object $rule, \Yiisoft\Validator\ValidationContext $context )
$value mixed
$rule object
$context \Yiisoft\Validator\ValidationContext 

                public function validate(mixed $value, object $rule, ValidationContext $context): Result
{
    if (!$rule instanceof ClassExistsRule) {
        throw new UnexpectedRuleException(ClassExistsRule::class, $rule);
    }
    $result = new Result();
    if (!is_string($value)) {
        $result->addError(sprintf('Value must be a string, "%s" given.', gettype($value)));
        return $result;
    }
    if (!class_exists($value)) {
        $result->addError("Class '$value' does not exist or has syntax error.");
        return $result;
    }
    if ($rule->parent !== null && !is_subclass_of($value, $rule->parent)) {
        $result->addError("Class '$value' is not a subclass of '$rule->parent'.");
    }
    return $result;
}