Laravel 5.2 Custom validation message with custom validation function - validation

Question

I want to create custom validation rule with custom validation error message. For this I created a rule:
$rule => [
'app_id' => 'isValidTag'
]
And for custom message:
$message => [
app_id.isValidTag => 'Not a Valid id'
];
After that I created Service Provider:
class CustomValidationServiceProvider extends ServiceProvider
{
public function boot() {
//parent::boot();
$this->app->validator->resolver(function($transator,$data,$rules,$messages){
return new CustomValidator($transator,$data,$rules,$messages);
});
}
}
And my Custom validation class is:
class CustomValidator extends Validator {
if(empty($parameters)) {
return true;
}
$conext = $parameters[0];
$tag = Tag::where('id', $value)->where('context', $conext)->get();
$flag = false;
if($tag->count() > 0) {
$flag = true;
}
return $flag;
}
All is working fine but the issue is my custom message for app_id.isValidTag is not working even all other message are working fine.
Please suggest me what I missing here or in Laravel 5.2 there is some change to display message. Any idea will be appreciated.

Answer 1

Here is a great tutorial for this: http://itsolutionstuff.com/post/laravel-5-create-custom-validation-rule-exampleexample.html
I think you did it Laravel 4.* way. This is how it is done in Laravel 5.2
in my example where i was making registration authorisation form so files like AuthController.php was premade:
AuthController.php
Validator::make($data, [
...
// add your field for validation
'name_of_the_field' => 'validation_tag', // validation tag from validation.php
...
CustomAuthProvider.php
// if you didn't make a custom provider use Providers/AppServiceProvider.php
public function boot() {
...
Validator::extend('validation_tag', function($attribute, $value, $parameters, $validator) {
// handle here your validation
if ( your_query ) {
return true;
}
return false;
});
validation.php
...
// add your validation tag and message to be displayed
'validation_tag' => 'The field :attribute isn't good',
...
file.blade.php
// to add at the end of the page all your errors add
#if (count($errors) > 0)
<div class="alert alert-danger">
<ul>
#foreach ($errors->all() as $error)
<li>{{ $error }}</li>
#endforeach
</ul>
</div>
#endif