Create helpers function for displaying validation errors - laravel

Question

To display validation errors after input field I using:
<div class="form-group">
{!! Html::decode(Form::label('first_name','First Name:<span class="required">*</span>',['class'=>'control-label col-sm-3'])) !!}
<div class="col-sm-6">
{!! Form::text('first_name',null,['class'=>'form-control']) !!}
#if ($errors->has('first_name'))
<span class="help-block">
<strong>{{ $errors->first('first_name') }}</strong>
</span>
#endif
</div>
</div>
<div class="form-group">
{!! Html::decode(Form::label('last_name','Last Name:<span class="required">*</span>',['class'=>'control-label col-sm-3'])) !!}
<div class="col-sm-6">
{!! Form::text('last_name',null,['class'=>'form-control']) !!}
#if ($errors->has('last_name'))
<span class="help-block">
<strong>{{ $errors->first('last_name') }}</strong>
</span>
#endif
</div>
</div>
// and so on......
This code works perfectly. But I have to write almost same code in every single input box. So, I planned to make a global function to display errors. To achieve this I did the following.
Create a helpers.php inside app folder
Write the following code:
function isError($name){
if($errors->has($name)){
return '<span class="help-block"><strong>'.$errors->first($name).'</strong></span>';
}
}
run composer dump-autoload
Used it in blade file this way:
<div class="form-group">
{!! Html::decode(Form::label('first_name','First Name:<span class="required">*</span>',['class'=>'control-label col-sm-3'])) !!}
<div class="col-sm-6">
{!! Form::text('first_name',null,['class'=>'form-control']) !!}
{{ isError('first_name') }}
</div>
</div>
<div class="form-group">
{!! Html::decode(Form::label('last_name','Last Name:<span class="required">*</span>',['class'=>'control-label col-sm-3'])) !!}
<div class="col-sm-6">
{!! Form::text('last_name',null,['class'=>'form-control']) !!}
{{ isError('last_name') }}
</div>
</div>
Now, when I go to create.blade.php I have an error
Undefined variable: errors (View: D:\xampp\htdocs\hms\resources\views\guest\create.blade.php)
I know the problem is in helpers.php because I didn't defined the $errors, I just paste that code from blade file.

Answer 1

The problem is that the $errors variable is undefined within the scope of your helper method.
This can be easily solved by passing the $errors object to the isError() helper method.
Helper
function isError($errors, $name){
if($errors->has($name)){
return '<span class="help-block"><strong>'.$errors->first($name).'</strong></span>';
}
}
Blade Template
{!! isError($errors, 'first_name') !!}