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Informations about the package laravel-route-key-exists
Laravel Route Key Exists
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Laravel validation rule to check if a custom route key exists.
Laravel's exists rule checks a database table for a column with a given value. This validation rule uses the resolveRouteBinding() method on a model to check if a given value exists.
Requirements
- PHP >= 7.0
- Laravel >= 5.5
Installation
Require the package via Composer:
Some Background Info
Laravel's implicit route model binding allows you to automatically resolve a model by type hinting it in a controller. Furthermore, you can change the route key that is used to query the database in your model:
This also works when you are using a custom or computed route key in your model:
But what if you are sending a custom key in a POST request and you want to validate it? Unlike Laravel's exists rule, this validation rule uses the resolveRouteBinding() method to check if the key is valid.
Usage
Let's say you have a model with an ID of 1, but getRouteKey() returns the encoded value of 1234.
In your validation rules, pass your model's class name to \CodeZero\RouteKeyExists\RouteKeyExists:
Here, model_id is the encoded value, which will be resolved using the resolveRouteBinding() method on your model. If it can't be resolved, validation fails.
Possibly, you will need the actual ID to work with when validation passes. Tack on replace() to the rule and model_id will be updated to the actual ID:
If your form uses a different attribute name than your model or database, you can replace the ID and the attribute name in the process.
Or maybe you want to keep the encoded ID in the request, but add the actual ID as well. Just tack on add() and specify an attribute name:
Beware that attributes that are dynamically added to the request will not be included in the array that is returned from request()->validate(). You can access those via request('attribute_name').
Useful Packages
- This rule works perfectly with the
laravel-optimusmodel trait.
Testing
Security
If you discover any security related issues, please e-mail me instead of using the issue tracker.
Changelog
See a list of important changes in the changelog.
License
The MIT License (MIT). Please see License File for more information.
