public function getIndex()
 {
     $admin = false;
     if (Auth::user()->type == "admin") {
         $admin = true;
         $installations = Installation::orderBy('created_at', 'desc')->paginate(50);
     } else {
         $installations = Installation::where('source_id', '=', Auth::user()->id)->orderBy('created_at', 'desc')->paginate(50);
     }
     return view('admin.installations.index')->with('admin', $admin)->with('installations', $installations);
 }