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https://github.com/Poniverse/Pony.fm.git
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263ea48c5b
Shift automatically applies the Laravel coding style - which uses the PSR-2 coding style as a base with some minor additions. You may customize the adopted coding style by adding your own [PHP CS Fixer][1] `.php_cs` config file to your project root. Feel free to use [Shift's Laravel ruleset][2] to help you get started. [1]: https://github.com/FriendsOfPHP/PHP-CS-Fixer [2]: https://gist.github.com/laravel-shift/cab527923ed2a109dda047b97d53c200
112 lines
3.5 KiB
PHP
112 lines
3.5 KiB
PHP
<?php
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/**
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* Pony.fm - A community for pony fan music.
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* Copyright (C) 2015 Feld0.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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namespace App\Commands;
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use App\Contracts\Favouritable;
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use App\Models\Album;
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use App\Models\Favourite;
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use App\Models\Playlist;
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use App\Models\ResourceUser;
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use App\Models\Track;
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use Auth;
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use DB;
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use Notification;
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class ToggleFavouriteCommand extends CommandBase
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{
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private $_resourceType;
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private $_resourceId;
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public function __construct($resourceType, $resourceId)
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{
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$this->_resourceId = $resourceId;
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$this->_resourceType = $resourceType;
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}
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/**
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* @return bool
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*/
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public function authorize()
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{
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$user = Auth::user();
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return $user != null;
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}
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private function getEntityBeingFavourited():Favouritable
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{
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switch ($this->_resourceType) {
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case 'track':
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return Track::find($this->_resourceId);
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case 'album':
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return Album::find($this->_resourceId);
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case 'playlist':
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return Playlist::find($this->_resourceId);
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default:
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throw new \InvalidArgumentException('Unknown resource type given!');
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}
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}
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/**
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* @throws \Exception
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* @return CommandResponse
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*/
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public function execute()
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{
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$typeId = $this->_resourceType.'_id';
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$existing = Favourite::where($typeId, '=', $this->_resourceId)->whereUserId(Auth::user()->id)->first();
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$isFavourited = false;
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if ($existing) {
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$existing->delete();
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} else {
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$fav = new Favourite();
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$fav->$typeId = $this->_resourceId;
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$fav->user_id = Auth::user()->id;
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$fav->save();
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$isFavourited = true;
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Notification::newFavourite($this->getEntityBeingFavourited(), $fav->user);
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}
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$resourceUser = ResourceUser::get(Auth::user()->id, $this->_resourceType, $this->_resourceId);
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$resourceUser->is_favourited = $isFavourited;
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$resourceUser->save();
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$resourceTable = $this->_resourceType.'s';
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// We do this to prevent a race condition. Sure I could simply increment the count columns and re-save back to the db
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// but that would require an additional SELECT and the operation would be non-atomic. If two log items are created
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// for the same resource at the same time, the cached values will still be correct with this method.
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DB::table($resourceTable)->whereId($this->_resourceId)->update([
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'favourite_count' => DB::raw('(
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SELECT
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COUNT(id)
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FROM
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favourites
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WHERE '.
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$typeId.' = '.$this->_resourceId.')'),
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]);
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return CommandResponse::succeed(['is_favourited' => $isFavourited]);
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}
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}
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