I want to add custom validation for one field in laravel nova resource file.
I have one field in db which is service_id in the service table and I have nova resource file for the same table. On create service I want to get data using service_id from other table and check data is present or not and if present then I don't want to enter that service_id in table.
So can someone help me how can I write custom validation rules in laravel nova resource file?
Using the following command, you can create a custom rule class:
php artisan make:rule CustomRule
Inside the fields function in your resource:
Text::make('Service ID', 'service_id')->rules(new CustomRule());
Go back to your rule file and inside the passes function:
public function passes($attribute, $value)
{
//You can check inside the database if your record exists
return false; //if the rule should stop the user
return true; //if everything is fine and you want the user to proceed.
}
public function message()
{
return 'Return your custom error message';
}
In Laravel 11.x, this can be done using the built in exists rule:
Text::make('Service ID', 'service_id')->rules('exists:service,service_id')
