No error with Fail Save and show 302 post error... How To solve it? - laravel

Question

<div class="row">
<div class="col-md-6">
<h3>Create New Expenses</h3>
#if ($errors->any())
<div class="alert alert-danger">
<ul>
#foreach ($errors->all() as $error)
<li>{{ $error }}</li>
#endforeach
</ul>
</div>
#endif
<form class="form" method="POST" action="{{ route('exp.store') }}" autocomplete="off">
<div class="form-group">
<label>Seller :</label>
<input type="text" name="seller_name" class="form-control" value="{{ old('seller_name',isset($exp) ? $exp->seller_name : '') }}" placeholder="Seller">
</div>
<div class="form-group">
<label>Date :</label>
<input type="date" name="date" class="form-control" value="{{ old('date',isset($exp) ? $exp->date : '') }}">
</div>
<div class="form-group">
<label>Select Type :</label>
<select class="form-control" name="category" value="">
<option value=""> Select Type </option>
<option value="1"{{ isset($exp) ? ($exp->category == 1 ? 'selected' : '') : '' }}> Communication </option>
<option value="2"{{ isset($exp) ? ($exp->category == 2 ? 'selected' : '') : '' }}> Transport </option>
<option value="3"{{ isset($exp) ? ($exp->category == 3 ? 'selected' : '') : '' }}> Tools </option>
<option value="4"{{ isset($exp) ? ($exp->category == 4 ? 'selected' : '') : '' }}> Raw Material </option>
</select>
</div>
<div class="form-group">
<label>Amount(RM) :</label>
<input type="number" name="amount" class="form-control" value="{{ old('amount',isset($exp) ? $exp->amount : '') }}" placeholder="0.00">
</div>
<br>
<button type="submit" class="btn btn-primary btn-sm">Save</button>
<a class="btn btn-danger btn-sm" href="{{ route('exp.index') }}">Cancel</a>
</form>
</div>
</div>
This is my saving data function
public function store(Request $request){
$this->validate($request, [
'seller_name' => 'required|max:50',
'date' => 'required',
'category' => 'required',
'amount' => 'required'
]);
DB::beginTransaction();
try{
$exp = new Exp();
$this->saveData($exp, $request);
DB::commit();
return redirect()->route('exp.index');
} catch (\Exception $ex){
DB::rollback();
return back()->withInput()->withErrors('Fail to save.');
}
}
private function saveData($exp, Request $request){
$exp->seller_name = $request->input('seller_name');
$exp->date = $request->input('date');
$exp->category = $request->input('category');
$exp->amount = $request->input('amount');
$exp->save();
}
This is my Model
namespace App;
use Illuminate\Database\Eloquent\Model;
class Exp extends Model
{
protected $table = 'exp';
public $primaryKey = 'exp_id';
}
I'm new using this MVC .... i don't know why cant't saving but all my code look no error.
I try to find it but i find nothing ..
I need some help...
i already provide my view, controller and model
and below is my web.php
Route::get('/exp/create', 'ExpController#create')->name('exp.create');
Route::post('/exp/store', 'ExpController#store')->name('exp.store');
TQ.

Answer 1

Seems like you forgot to add mass assignment fields to your Exp model, hence the fields are not saved in your database. Add all the fields you want to be mass assigned to your model, and it should be working as expected:
protected $fillable = ['field_1', 'field_2', .... 'etc'];
Read more about this on official documentation