Laravel custom validation message for multiple fields with the same name - laravel

Question

I have the following validation in the controller's action:
foreach ($request['qtys'] as $key => $val){
if (!$this->_validateMinQty($key, $job, $val)){
$customerTitle = $job->customers()->where('customer_id',$key)->first()->title;
return redirect()->back()->withErrors(['qtys' => __('The qty of the customer :customerTitle is less than allowed qty',['customerTitle' => $customerTitle])]);
}
}
This check multiple form's input named qtys in the view:
#foreach($job->customers as $customer)
<div class="form-group {{$errors->first('qtys has-error')}}">
{!! Form::label('qtys-'.$customer->id, __('Qty').' '.$customer->title) !!}
<div class="row">
<div class="col-md-9">
{!! Form::text('qtys['.$customer->id.']',$customer->pivot->e_production,['class' =>'form-control qtys', "data-sumequal"=>"qty",'required' => 'required','title' => $customer->pivot->aid,'id' => 'qtys-'.$customer->id]) !!}
<div class="help-block with-errors"></div>
#php ($eleE = $errors->first('qtys'))
#include('layouts.form-ele-error')
</div>
<div class="col-md-3">
<i class="fox-add"></i>{{__('Add Storage')}}
</div>
</div>
</div>
#endforeach
The above code works, but with the following limitation:
The error message is rendered under every input named qtys[x] where x is an integer and the first input only Testana has the invalid qty, like the following screen shot:
In the controller's action return message, I have tried to use indexed name for the input like the following:
return redirect()->back()->withErrors(['qtys.10' => ....
However, it prevents rendering the error message under any qtys field. Is there any solution?

Answer 1

The solution that I have found starts from the definition of first method found in the view :
#php ($eleE = $errors->first('qtys'))
This, in my code, should be changed to:
#php ($eleE = $errors->first('qtys.'.$customer->id))
Because the multiple fields have gotten keys equals to the customer id. This is a technique I usually use, when I want to send double piece of data in single post or in single form element.
Then in the controller, I keep the first try,
return redirect()->back()->withErrors(['qtys.'.$key => __('The qty of the customer :customerTitle is less than allowed qty',['customerTitle' => $customerTitle])]);
Where $key is an integer.