public function uploadImage(Request $request)
 {
     // file was uploaded successfully
     if ($request->hasFile('photo') && $request->file('photo')->isValid()) {
         // get file object
         $file = $request->file('photo');
         // separate extension and name
         $temp = explode('.', $file->getClientOriginalName());
         $ext = array_pop($temp);
         $name = implode('.', $temp);
         // slugify the name and lowercase the ext
         $fileName = Self::slugify($name) . '.' . strtolower($ext);
         $destinationPath = public_path('images/uploaded/');
         if (file_exists($destinationPath . DIRECTORY_SEPARATOR . $fileName)) {
             $fileName = Self::slugify($name) . '-' . Self::generateRandomString(5) . '.' . strtolower($ext);
         }
         // move to correct folder
         $file->move($destinationPath, $fileName);
         $i = new File();
         $i->title = $request->input('title');
         $i->file = $fileName;
         $i->save();
     }
     return redirect('/dashboard/images');
 }