laravel Undefined offset: 0 - laravel

Question

I am trying to diplay an error mesasge in case the field selected is duplicated in db.For this I am using laravel validation required unique. I am having problem with redirect
Here is store controller
public function store() {
$rules = array(
'car' => array('required', 'unique:insur_docs,car_id'),
);
$validation = Validator::make(Input::all(), $rules);
if ($validation->fails()) {
// Validation has failed.
return Redirect::to('insur_docs/create')->with_input()->with_errors($validation);
} else {
$data = new InsurDoc();
$data->ownership_cert = Input::get('ownership_cert');
$data->authoriz = Input::get('authoriz');
$data->drive_permis = Input::get('drive_permis');
$data->sgs = Input::get('sgs');
$data->tpl = Input::get('tpl');
$data->kasko = Input::get('kasko');
$data->inter_permis = Input::get('inter_permis');
$data->car_id = Input::get('car');
$data->save();
// redirect
return Redirect::to('/');
}
}
Here is the route
Route::get('insur_docs/create', array('as' => 'insur_docs.create','uses' => 'Insur_DocController#create'));
create controller
public function create() {
$cars = DB::table('cars')->orderBy('Description', 'asc')->distinct()->lists('Description', 'id');
return View::make('pages.insur_docs_create', array(
'cars' => $cars
));
}
insur_docs_create.blade.php
<div id="div-1" class="body">
{{ Form::open(array('url' => 'insur_docs/store', 'class'=>'form-horizontal','id'=>'inline-validate')) }}
<div class="form-group">
{{ Form::label('ownership_cert', 'Ownership Certificate', array('class'=>'control-label col-lg-4')) }}
<div class="col-lg-8">
{{ Form::select('ownership_cert', array('' => '', '1' => 'Yes', '0' => 'No'), '', array(
'data-validation' => 'required',
'data-validation-error-msg' => 'You did not enter a valid ownership certificate',
'class' => 'form-control'))
}}
</div>
</div>
<div class="form-group">
{{ Form::label('authoriz', 'Authorization', array('class'=>'control-label col-lg-4')) }}
<div class="col-lg-8">
{{ Helpers\Helper::date('authoriz', '' , array(
'data-validation' => 'required',
'data-validation-error-msg' => 'You did not enter a valid authorization date',
'class' => 'form-control'))
}}
</div>
</div>
<div class="form-group">
{{ Form::label('drive_permis', 'Drive Permission', array('class'=>'control-label col-lg-4')) }}
<div class="col-lg-8">
{{ Form::select('drive_permis', array('' => '', '1' => 'Active', '0' => 'Not active'), '', array(
'data-validation' => 'required',
'data-validation-error-msg' => 'You did not enter a valid drive permission',
'class' => 'form-control'))
}}
</div>
</div>
<div class="form-group">
{{ Form::label('sgs', 'SGS', array('class'=>'control-label col-lg-4')) }}
<div class="col-lg-8">
{{ Helpers\Helper::date('sgs', '' , array(
'data-validation' => 'required',
'data-validation-error-msg' => 'You did not enter a valid sgs date',
'class' => 'form-control'))
}}
</div>
</div>
<div class="form-group">
{{ Form::label('tpl', 'TPL', array('class'=>'control-label col-lg-4')) }}
<div class="col-lg-8">
{{ Helpers\Helper::date('tpl', isset($v->sgs) ? $v->sgs : '' , array(
'data-validation' => 'required',
'data-validation-error-msg' => 'You did not enter a valid tpl date',
'class' => 'form-control'))
}}
</div>
</div>
<div class="form-group">
{{ Form::label('kasko', 'Kasko', array('class'=>'control-label col-lg-4')) }}
<div class="col-lg-8">
{{ Helpers\Helper::date('kasko', isset($v->kasko) ? $v->kasko : '' , array(
'data-validation' => 'required',
'data-validation-error-msg' => 'You did not enter a valid kasko date',
'class' => 'form-control'))
}}
</div>
</div>
<div class="form-group">
{{ Form::label('inter_permis', 'International Permission', array('class'=>'control-label col-lg-4')) }}
<div class="col-lg-8">
{{ Helpers\Helper::date('inter_permis', '' , array(
'data-validation' => 'required',
'data-validation-error-msg' => 'You did not enter a valid international permission date',
'class' => 'form-control'))
}}
</div>
</div>
<div class="form-group">
{{ Form::label('car', 'Car', array('class'=>'control-label col-lg-4')) }}
<div class="col-lg-8">
{{ Form::select('car', $cars, Input::old('class'), array(
'data-validation' => 'required',
'data-validation-error-msg' => 'You did not enter a valid car',
'class' => 'form-control'))
}}
{{ $errors->first('car') }}
</div>
</div>
{{ Form::submit('Save', array('class' => 'btn btn-success btn-line')) }}
<input type="button" value="Back" class="btn btn-danger btn-line" onClick="history.go(-1);
return true;">
<div>
#foreach($errors as $error)
<li>{{$error}}</li>
#endforeach
</div>
{{ Form::close() }}
I t displays this error :
Undefined offset: 0

Answer 1

It might be that you are using a get, using post might help. Other than that you are mixing model and controller code. It's always a good idea to seperate these. For instance your redirects should be done inside the controller and not in the model.
http://laravel.com/docs/validation
http://laravelbook.com/laravel-input-validation/
http://culttt.com/2013/07/29/creating-laravel-4-validation-services/
It's also better to do stuff on $validator->passes() and then else return with errors.
Controller
public function store() {
$data = [
"errors" => null
];
$rules = array(
'car' => array('required', 'unique:insur_docs,car_id')
);
$validation = Validator::make(Input::all(), $rules);
if($validation->passes()) {
$data = new InsurDoc();
$data->ownership_cert = Input::get('ownership_cert');
$data->authoriz = Input::get('authoriz');
$data->drive_permis = Input::get('drive_permis');
$data->sgs = Input::get('sgs');
$data->tpl = Input::get('tpl');
$data->kasko = Input::get('kasko');
$data->inter_permis = Input::get('inter_permis');
$data->car_id = Input::get('car');
$data->save();
return Redirect::to('/');
} else {
$data['errors'] = $validation->errors();
return View::make('pages.insur_docs_create', $data);
}
}
Your errors will be available in your view under $errors. Just do a {{var_dump($errors)}} in your blade template to verify that they are there.
View
#if($errors->count() > 0)
<p>The following errors have occurred:</p>
<ul>
#foreach($errors->all() as $message)
<li>{{$message}}</li>
#endforeach
</ul>
#endif

Answer 2

I Think this is a really better answer from this refrenece
Laravel 4, ->withInput(); = Undefined offset: 0
withInput() doesn't work the way you think it does. It's only a function of Redirect, not View.
Calling withInput($data) on View has a completely different effect; it passes the following key value pair to your view: 'input' => $data (you get an error because you're not passing any data to the function)
To get the effect that you want, call Input::flash() before making your view, instead of calling withInput(). This should allow you to use the Input::old() function in your view to access the data.
Alternatively, you could simply pass Input::all() to your view, and use the input[] array in your view:
View::make(...)->withInput(Input::all());
which is translated to
View::make(...)->with('input', Input::all());
As for your comment, I recommend doing it like so:
$position_options = DB::table('jposition')->lists('friendly','id');
$category_options = DB::table('jcategory')->lists('friendly','id');
$location_options = DB::table('jlocation')->lists('friendly','id');
$category = Input::get('category');
$location = Input::get('location');
$type = Input:: get('type');
$data = compact('position_options', 'category_options', 'location_options', 'category', 'type', 'location');
return View::make('jobsearch.search', $data);

Answer 3

also thinks about laravel resource controller. because when we call no parameter get method, it redirects to the show method with ignoring our function name.
eg:-Route::get('hasith', 'Order\OrderController#hasith');----->
this parameter rederect to this function
public function show($id, Request $request) {
//code
}