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/**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function asignar(Request $request) 
    {
        $valor = $request->valor;
        $user = usuarios::findOrFail($valor);
         $userad = usuarios::find($user->user_id);
         $userad->asignacion = $user->usuario_ad;
          $userad->save();
         return redirect()->route('cuenta.tareas')->with('success','Registro actualizado satisfactoriamente');
      
    }

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