InvalidArgumentException Validation rule unique requires at least 1 parameters

Question

I have a problem with laravel 8 validation please help

1. public function store(TodoRequest $request){
   
   $data=request()->all();
   $todo= new Todo();
   $todo->name=$data['name'];
   $todo->Description=$data['Description'];
   $todo->completed=false;
   $todo->save();
   $validated = $request->validated();
   return redirect('/todos');
   

   }

2. namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;

class TodoRequest 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 [
        'name' => 'required|unique|min:6|max:255',
        'Description' => 'required',
    ];
}

}

Answer 1

you have to make one small change:

public function rules()
{
    return [
        'name' => 'required|unique:table_name, column_name|min:6|max:255',
        'Description' => 'required',
    ];
}

here table_name should be the name of your table and column_name is 'name' in your case.