Assert array Values [Symfony] [Api-platform]-CodePudding

I need to validate an array. And I also have to validate the values in this array.

For example I want to validate each of these entries and only this one. If I have anything else I want an error. But I can send only one entry if I want. How can I validate that?

"workDaysInput": [
    "full-week",
    "partial-week-3-4",
    "partial-week-1-2",
    "night-and-weekend"
],

CodePudding user response：

This depends on the context and where the array is used. But you can use the validation component. For more details see https://symfony.com/doc/current/validation.html

Here is a quick easy example if you are using an entity. if you need to do this validation in alot of places I recommend creating your own validation constraint. see here for the details https://symfony.com/doc/current/validation/custom_constraint.html

For this example we will use a callback constraint see https://symfony.com/doc/current/reference/constraints/Callback.html.

Add the following to your php file. When this class gets run through the validator it will read the annotation and run the validate function. Using a validation callback You will need to check each property individually and set the error for each constraint, in this example we are checking workDaysInput.

You will need to include the following use statements at the top of your class.

use Symfony\Component\Validator\Context\ExecutionContextInterface;
use Symfony\Component\Validator\Constraints as Assert;

/**
* @Assert\Callback
*/
public function validate(ExecutionContextInterface $context, $payload){
    $workDays = $this->getWorkDaysInput();
    $allowedDays = [
        "full-week",
        "partial-week-3-4",
        "partial-week-1-2",
        "night-and-weekend"
    ];

    if(count($workDays) < 1 && count($workDays) > 4) {
        return $context->buildViolation('Incorrect amount of options selected')
        ->atPath('workDays')
        ->addViolation();
    }

    forEach($workDays as $day){
        if(in_array($day, $allowedDays)) return $context->buildViolation(sprintf('Day selection %s not allowed', $day))
        ->atPath('workDays')
        ->addViolation();
    }
}