Validating input data in flash

28-Feb-2020 19:46

The last thing we'll handle in form validation for Laravel today is to create custom error messages.

Sometimes the default ones just aren't fun enough for our flare and pizazz.

This is also how we will be able to test to make sure that our new duck/user has a unique email in the database.

Create the model at and we'll use Laravel's Blade to handle our views.

Each request has it own The Play message look-up just returns the message key if there is no message defined for the key, which means you can also just use a literal message instead of the message key if you prefer.

Using the same examples as above, for manual validation: But in a real application you want to redisplay the original form.

If the validation rules pass, your code will keep executing normally; however, if validation fails, an exception will be thrown and the proper error response will automatically be sent back to the user.

In the case of a traditional HTTP request, a redirect response will be generated, while a JSON response will be sent for AJAX requests. Again, if the validation fails, the proper response will automatically be generated.

We have to add something to our form validation on the backend side of things and then we'll add the information to our view file.Note: The field template helper function makes writing templates that use the validation error framework a little more convenient.The template can be simplified if error messages are collected in a single place (e.g.In this case you need a special trick to keep your errors during the redirect.Use the You can also use the validation annotations to easily add constraints to your model object’s properties, and then in the controller specify that all properties must be valid.

We have to add something to our form validation on the backend side of things and then we'll add the information to our view file.

Note: The field template helper function makes writing templates that use the validation error framework a little more convenient.

The template can be simplified if error messages are collected in a single place (e.g.

In this case you need a special trick to keep your errors during the redirect.

Use the You can also use the validation annotations to easily add constraints to your model object’s properties, and then in the controller specify that all properties must be valid.

You can also write your own annotation validations, which is more complex but makes your model code cleaner and allows you to introduce validator parameters.