laravel，在另一个表的下拉菜单中显示数据

Question

Hello guys I have a table manufacturers (columns 'manufacturer_id' , 'manufacturer' ) and want display a "select" list based by this table dynamically in a different but linked view 'asset.blade.php' .

Model - Asset.php

namespace App;

class Asset extends Model
{
    protected $primaryKey = 'asset_id';

}

Controller - AssetController

namespace App\Http\Controllers;

use App\Asset;
use App\Manufacturer;

use Illuminate\Http\Request;

class AssetController extends Controller
{
    public function asset(){

        $assets = Asset::all();
        return view('viewAsset', ['assets' => $assets]);
    }

    public function getmanufacturerlist() {
        $Manufacturer = Manafacturers::all();
        return view('manufacturer')->with('data', $Manufacturer);
    }

    public function add(Request $request){
        $this->validate($request, [
            'asset_id' => '',
            'asset_category_id' => 'required',
            'manufacturer_id' => 'required',
            'department_id' => 'required',
        ]);
        $assets =  new Asset;
        $assets  ->asset_id  = $request->input('asset_id');
        $assets  ->asset_category_id = $request->input('asset_category_id');
        $assets  ->manufacturer_id = $request->input('manufacturer_id');
        $assets  ->department_id = $request->input('department_id');
        $assets  ->save();
        return redirect('/viewAsset') ->with('info', 'New Asset Saved Successfully!');
    }
}

manufacturer.blade.php

<select name="manufacturer_id">
<option>Select a Manufacturer</option>
@foreach( $manufacturer as $manufacturers )
<option value=" <?php echo $manufacturers->manufacturer_id; ?>" > <?php echo $manufacturer->manufacturer?> </option>
 @endforeach
</select>

when i execute my project - it works just fine, i see the dropdown list. But if I include my manufacturer.blade.php in the form:

 @include('forms.manufacturer')

I get the error

Undefined variable: manufacturer.

How do i fix the error? My Laravel version is 5.4.

Answer 1

You're passing $manufacturer as $data to your view.

Update it to properly pass a variable named $manufacturer .

return view('manufacturer')->with('manufacturer', $Manufacturer);

Or use compact for a cleaner approach:

return view('manufacturer', compact('manufacturer'));