I have a problem with adding data to MySQL with Laravel. Let's say that we have a table "Books" with "categories" column, let's also say that there are only 3 categories which can be choose by User. So we have a drop-down list with "Thrillers, Horrors, Actions" and when we want to add a New Book, we have to provide its title and also select from drop-down list a category. I wrote:
create.blade.php
<div class="form-group{{ $errors->has('title') ? ' has-error' : '' }}">
<label>Book title</label>
<input type="text" class="form-control" name="name" placeholder="The title of the book" value="{{ old('title') ? : $books->title }}">
<div class="form-group{{ $errors->has('category_id') ? ' has-error' : '' }}">
<label>Category</label>
<select class="form-control" name="category_id">
<option value="{{ old('name') ? : $books->category_id }}">Horror</option>
<option value="{{ old('name') ? : $books->category_id }}">Action</option>
<option value="{{ old('name') ? : $books->category_id }}">Thriller</option>
</select>
</div>
But i get an error :/
SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'category_id' cannot be null (SQL: insert into `books` (`category_id`, `title`, `updated_at`, `created_at`) values (, , 2018-08-07 19:37:28, 2018-08-07 19:37:28))
Also I'm a newbie in PHP and Laravel so please contain a short description for every solution. Thank you!
BooksRequest.php
<?php
namespace App\Http\Requests;
use Illuminate\Foundation\Http\FormRequest;
class BooksRequest extends FormRequest
{
/**
* Determine if the user is authorized to make this request.
*
* @return bool
*/
public function authorize()
{
return true;
}
/**
* Get the validation rules that apply to the request.
*
* @return array
*/
public function rules()
{
return [
];
}
}
BooksController.php
<?php
namespace App\Http\Controllers\Admin;
use App\Books;
use App\Http\Controllers\Controller;
use App\Services\TranslationService;
use App\Translation;
use Illuminate\Http\Request;
use App\Http\Requests\BooksRequest;
class BooksController extends Controller
{
public function index()
{
$books = books::all();
return view('books.index', compact('books'));
}
public function create()
{
$books = new Books();
return view('books.create', compact('books'));
}
public function store(BooksRequest $request)
{
$books = new Books();
$books ->title = $request->title;
$books ->category_id= $request->category_id;
if($books ->save()) {
return redirect()->route('books.index')->with(['success' => true, 'message_type' => 'success', 'message' => 'Success '.$request->title.'.']);
}
return back()->with(['success' => false, 'message_type' => 'danger', 'message' => 'Bad'.$request->title.'. Try later.']);
}
}
