Method App\Http\Controllers\todocontroller::validate does not exist error in laravel - laravel

Question

I am using Laravel 5.7 and while validating my form fields I am getting this error:
"Method App\Http\Controllers\todocontroller::validate does not exist error."
Here is my controller:
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\todo;
class todocontroller extends Controller
{
/**
* Display a listing of the resource.
*
* #return \Illuminate\Http\Response
*/
public function index()
{
$todos= todo::all();
return view('todo.home',compact('todos'));
}
/**
* Show the form for creating a new resource.
*
* #return \Illuminate\Http\Response
*/
public function create()
{
return view('todo.create');
}
/**
* Store a newly created resource in storage.
*
* #param \Illuminate\Http\Request $request
* #return \Illuminate\Http\Response
*/
public function store(Request $request)
{
$todo = new todo;
$this->validate($request,[
'body'=>'required',
'title'=>'required|unique:todos',
]);
$todo->body = $request->body;
$todo->title = $request->title;
$todo->save();
return redirect('/todo');
}
/**
* Display the specified resource.
*
* #param int $id
* #return \Illuminate\Http\Response
*/
public function show($id)
{
$todo=todo::find($id);
return view('todo.show',compact('todo'));
}
/**
* Show the form for editing the specified resource.
*
* #param int $id
* #return \Illuminate\Http\Response
*/
public function edit($id)
{
$todo=todo::find($id);
return view('todo.edit',compact('todo'));
}
/**
* Update the specified resource in storage.
*
* #param \Illuminate\Http\Request $request
* #param int $id
* #return \Illuminate\Http\Response
*/
public function update(Request $request, $id)
{
$todo = todo::find($id);
$this->validate($request,[
'body'=>'required',
'title'=>'required',
]);
$todo->body = $request->body;
$todo->title = $request->title;
$todo->updated_at = now();
$todo->save();
session()->flash('message','Updated Successfully!');
return redirect('/todo');
}
/**
* Remove the specified resource from storage.
*
* #param int $id
* #return \Illuminate\Http\Response
*/
public function destroy($id)
{
$todo = todo::find($id);
$todo -> delete();
session()->flash('message','Deleted Successfully!');
return redirect('/todo');
}
}
error is in this code
$this->validate($request,[
'body'=>'required',
'title'=>'required|unique:todos',
]);
but as per laravel documentation my validate method is right.
Please let me know what I am doing wrong in my controller.
I have also googled for this error but no success.
I have also tried using these lines :
use Illuminate\Foundation\Validation\ValidatesRequests;
use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
use Validator;
But no success. Please help me since i am getting this error for last 10 days. I don't understand what to do now. Your help will be appreciated. thanks.

Answer 1

Although other answers might contain valid alternative way, $this->validate(...) should work without any problem in your controller. But you should make sure you haven't changed anything from standard Laravel base controller.
Default controller located here looks like this:
<?php
namespace App\Http\Controllers;
use Illuminate\Foundation\Bus\DispatchesJobs;
use Illuminate\Routing\Controller as BaseController;
use Illuminate\Foundation\Validation\ValidatesRequests;
use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
class Controller extends BaseController
{
use AuthorizesRequests, DispatchesJobs, ValidatesRequests;
}
As you see it contains ValidatesRequests trait and this trait provides validate method. So take a look at your app/Http/Controllers/Controller.php file and make sure it looks like this above.

Answer 2

$validatedData = $request->validate([
'body'=>'required',
'title'=>'required|unique:todos',
]);
$todo = new todo;
$todo->body = $request->body;
$todo->title = $request->title;
$todo->save();
return redirect('/todo');
If the validation fails, the proper response will automatically be generated. If the validation passes, our controller will continue executing normally.
Check Writing The Validation Logic in docs again.

Answer 3

Try this :
use Validator;
....
....
Validator::make($request->all(), [
'title' => 'required|unique:posts|max:255',
'body' => 'required',
])->validate();
link : https://laravel.com/docs/5.7/validation#automatic-redirection

Answer 4

I was getting an issue as I was trying to use it like this
$this->validate(request(), [
"title" => "required",
]);
Made a silly mistake there.
make sure you use your controller from right place.
use App\Http\Controllers\Controller;