]> git.mxchange.org Git - quix0rs-gnu-social.git/blob - plugins/Favorite/classes/Fave.php
Bad variable reference in Fave class
[quix0rs-gnu-social.git] / plugins / Favorite / classes / Fave.php
1 <?php
2 /**
3  * Table Definition for fave
4  */
5
6 class Fave extends Managed_DataObject
7 {
8     public $__table = 'fave';                            // table name
9     public $notice_id;                       // int(4)  primary_key not_null
10     public $user_id;                         // int(4)  primary_key not_null
11     public $uri;                             // varchar(255)
12     public $created;                         // datetime  multiple_key not_null
13     public $modified;                        // timestamp()   not_null default_CURRENT_TIMESTAMP
14
15     public static function schemaDef()
16     {
17         return array(
18             'fields' => array(
19                 'notice_id' => array('type' => 'int', 'not null' => true, 'description' => 'notice that is the favorite'),
20                 'user_id' => array('type' => 'int', 'not null' => true, 'description' => 'user who likes this notice'),
21                 'uri' => array('type' => 'varchar', 'length' => 255, 'description' => 'universally unique identifier, usually a tag URI'),
22                 'created' => array('type' => 'datetime', 'not null' => true, 'description' => 'date this record was created'),
23                 'modified' => array('type' => 'timestamp', 'not null' => true, 'description' => 'date this record was modified'),
24             ),
25             'primary key' => array('notice_id', 'user_id'),
26             'unique keys' => array(
27                 'fave_uri_key' => array('uri'),
28             ),
29             'foreign keys' => array(
30                 'fave_notice_id_fkey' => array('notice', array('notice_id' => 'id')),
31                 'fave_user_id_fkey' => array('profile', array('user_id' => 'id')), // note: formerly referenced notice.id, but we can now record remote users' favorites
32             ),
33             'indexes' => array(
34                 'fave_notice_id_idx' => array('notice_id'),
35                 'fave_user_id_idx' => array('user_id', 'modified'),
36                 'fave_modified_idx' => array('modified'),
37             ),
38         );
39     }
40
41     /**
42      * Save a favorite record.
43      * @fixme post-author notification should be moved here
44      *
45      * @param Profile $profile the local or remote user who likes
46      * @param Notice $notice the notice that is liked
47      * @return mixed false on failure, or Fave record on success
48      */
49     static function addNew(Profile $profile, Notice $notice) {
50
51         $fave = null;
52
53         if (Event::handle('StartFavorNotice', array($profile, $notice, &$fave))) {
54
55             $fave = new Fave();
56
57             $fave->user_id   = $profile->id;
58             $fave->notice_id = $notice->id;
59             $fave->created   = common_sql_now();
60             $fave->modified  = common_sql_now();
61             $fave->uri       = self::newUri($profile,
62                                             $notice,
63                                             $fave->created);
64
65             try {
66                 $fave->insert();
67             } catch (ServerException $e) {
68                 common_log_db_error($fave, 'INSERT', __FILE__);
69                 return false;
70             }
71             self::blowCacheForProfileId($fave->user_id);
72             self::blowCacheForNoticeId($fave->notice_id);
73             self::blow('popular');
74
75             Event::handle('EndFavorNotice', array($profile, $notice));
76         }
77
78         return $fave;
79     }
80
81     // exception throwing takeover!
82     public function insert()
83     {
84         if (!parent::insert()) {
85             throw new ServerException(sprintf(_m('Could not store new object of type %s'), get_called_class()));
86         }
87         self::blowCacheForProfileId($this->user_id);
88         self::blowCacheForNoticeId($this->notice_id);
89         return $this;
90     }
91
92     public function delete($useWhere=false)
93     {
94         $profile = Profile::getKV('id', $this->user_id);
95         $notice  = Notice::getKV('id', $this->notice_id);
96
97         $result = null;
98
99         if (Event::handle('StartDisfavorNotice', array($profile, $notice, &$result))) {
100
101             $result = parent::delete($useWhere);
102
103             self::blowCacheForProfileId($this->user_id);
104             self::blowCacheForNoticeId($this->notice_id);
105             self::blow('popular');
106
107             if ($result) {
108                 Event::handle('EndDisfavorNotice', array($profile, $notice));
109             }
110         }
111
112         return $result;
113     }
114
115     function stream($user_id, $offset=0, $limit=NOTICES_PER_PAGE, $own=false, $since_id=0, $max_id=0)
116     {
117         $stream = new FaveNoticeStream($user_id, $own);
118
119         return $stream->getNotices($offset, $limit, $since_id, $max_id);
120     }
121
122     function idStream($user_id, $offset=0, $limit=NOTICES_PER_PAGE, $own=false, $since_id=0, $max_id=0)
123     {
124         $stream = new FaveNoticeStream($user_id, $own);
125
126         return $stream->getNoticeIds($offset, $limit, $since_id, $max_id);
127     }
128
129     function asActivity()
130     {
131         $target = $this->getTarget();
132         $actor  = $this->getActor();
133
134         $act = new Activity();
135
136         $act->verb = ActivityVerb::FAVORITE;
137
138         // FIXME: rationalize this with URL below
139
140         $act->id   = $this->getUri();
141
142         $act->time    = strtotime($this->created);
143         // TRANS: Activity title when marking a notice as favorite.
144         $act->title   = _("Favor");
145         $act->content = $target->rendered ?: $target->content;
146
147         $act->actor     = $actor->asActivityObject();
148         $act->target    = $target->asActivityObject();
149         $act->objects   = array(clone($act->target));
150
151         $url = common_local_url('AtomPubShowFavorite',
152                                           array('profile' => $actor->id,
153                                                 'notice'  => $target->id));
154
155         $act->selfLink = $url;
156         $act->editLink = $url;
157
158         return $act;
159     }
160
161     static function existsForProfile($notice, Profile $scoped)
162     {
163         $fave = self::pkeyGet(array('user_id'=>$scoped->id, 'notice_id'=>$notice->id));
164
165         return ($fave instanceof Fave);
166     }
167
168     /**
169      * Fetch a stream of favorites by profile
170      *
171      * @param integer $profileId Profile that faved
172      * @param integer $offset    Offset from last
173      * @param integer $limit     Number to get
174      *
175      * @return mixed stream of faves, use fetch() to iterate
176      *
177      * @todo Cache results
178      * @todo integrate with Fave::stream()
179      */
180
181     static function byProfile($profileId, $offset, $limit)
182     {
183         $fav = new Fave();
184
185         $fav->user_id = $profileId;
186
187         $fav->orderBy('modified DESC');
188
189         $fav->limit($offset, $limit);
190
191         $fav->find();
192
193         return $fav;
194     }
195
196     static function countByProfile(Profile $profile)
197     {
198         $c = Cache::instance();
199         if (!empty($c)) {
200             $cnt = $c->get(Cache::key('fave:count_by_profile:'.$profile->id));
201             if (is_integer($cnt)) {
202                 return $cnt;
203             }
204         }
205
206         $faves = new Fave();
207         $faves->user_id = $profile->id;
208         $cnt = (int) $faves->count('notice_id');
209
210         if (!empty($c)) {
211             $c->set(Cache::key('fave:count_by_profile:'.$profile->id), $cnt);
212         }
213
214         return $cnt;
215     }
216
217     static protected $_faves = array();
218
219     /**
220      * All faves of this notice
221      *
222      * @param Notice $notice A notice we wish to get faves for (may still be ArrayWrapper)
223      *
224      * @return array Array of Fave objects
225      */
226     static public function byNotice($notice)
227     {
228         if (!isset(self::$_faves[$notice->id])) {
229             self::fillFaves(array($notice->id));
230         }
231         return self::$_faves[$notice->id];
232     }
233
234     static public function fillFaves(array $notice_ids)
235     {
236         $faveMap = Fave::listGet('notice_id', $notice_ids);
237         self::$_faves = array_replace(self::$_faves, $faveMap);
238     }
239
240     static public function blowCacheForProfileId($profile_id)
241     {
242         $cache = Cache::instance();
243         if ($cache) {
244             // Faves don't happen chronologically, so we need to blow
245             // ;last cache, too
246             $cache->delete(Cache::key('fave:ids_by_user:'.$profile_id));
247             $cache->delete(Cache::key('fave:ids_by_user:'.$profile_id.';last'));
248             $cache->delete(Cache::key('fave:ids_by_user_own:'.$profile_id));
249             $cache->delete(Cache::key('fave:ids_by_user_own:'.$profile_id.';last'));
250             $cache->delete(Cache::key('fave:count_by_profile:'.$profile_id));
251         }
252     }
253     static public function blowCacheForNoticeId($notice_id)
254     {
255         $cache = Cache::instance();
256         if ($cache) {
257             $cache->delete(Cache::key('fave:list-ids:notice_id:'.$notice_id));
258         }
259     }
260
261     // Remember that we want the _activity_ notice here, not faves applied
262     // to the supplied Notice (as with byNotice)!
263     static public function fromStored(Notice $stored)
264     {
265         $class = get_called_class();
266         $object = new $class;
267         $object->uri = $stored->uri;
268         if (!$object->find(true)) {
269             throw new NoResultException($object);
270         }
271         return $object;
272     }
273
274     static public function getObjectType()
275     {
276         return 'activity';
277     }
278
279     public function asActivityObject(Profile $scoped=null)
280     {
281         $actobj = new ActivityObject();
282         $actobj->id = $this->getUri();
283         $actobj->type = ActivityUtils::resolveUri(self::getObjectType());
284         $actobj->actor = $this->getActorObject();
285         $actobj->target = $this->getTargetObject();
286         $actobj->objects = array(clone($actobj->target));
287         $actobj->verb = ActivityVerb::FAVORITE;
288         $actobj->title = ActivityUtils::verbToTitle($actobj->verb);
289         $actobj->content = $this->getTarget()->rendered ?: $this->getTarget()->content;
290         return $actobj;
291     }
292
293     /**
294      * @param ActivityObject $actobj The _favored_ notice (which we're "in-reply-to")
295      * @param Notice         $stored The _activity_ notice, i.e. the favor itself.
296      */
297     static public function parseActivityObject(ActivityObject $actobj, Notice $stored)
298     {
299         $local = ActivityUtils::findLocalObject($actobj->getIdentifiers());
300         if (!$local instanceof Notice) {
301             // $local always returns something, but this was not what we expected. Something is wrong.
302             throw new Exception('Something other than a Notice was returned from findLocalObject');
303         }
304  
305         $actor = $stored->getProfile();
306         $object = new Fave();
307         $object->user_id = $stored->getProfile()->id;
308         $object->notice_id = $local->id;
309         $object->uri = $stored->uri;
310         $object->created = $stored->created;
311         $object->modified = $stored->modified;
312         return $object;
313     }
314
315     static function saveActivityObject(ActivityObject $actobj, Notice $stored)
316     {
317         $object = self::parseActivityObject($actobj, $stored);
318         $object->insert();  // exception throwing!
319         Event::handle('EndFavorNotice', array($stored->getProfile(), $object->getTarget()));
320         return $object;
321     }
322
323     public function getAttentionArray() {
324         // not all objects can/should carry attentions, so we don't require extending this
325         // the format should be an array with URIs to mentioned profiles
326         return array();
327     }
328
329     public function getTarget()
330     {
331         // throws exception on failure
332         $target = new Notice();
333         $target->id = $this->notice_id;
334         if (!$target->find(true)) {
335             throw new NoResultException($target);
336         }
337
338         return $target;
339     }
340
341     public function getTargetObject()
342     {
343         return $this->getTarget()->asActivityObject();
344     }
345
346     protected $_stored = array();
347
348     public function getStored()
349     {
350         if (!isset($this->_stored[$this->uri])) {
351             $stored = new Notice();
352             $stored->uri = $this->uri;
353             if (!$stored->find(true)) {
354                 throw new NoResultException($stored);
355             }
356             $this->_stored[$this->uri] = $stored;
357         }
358         return $this->_stored[$this->uri];
359     }
360
361     public function getActor()
362     {
363         $profile = new Profile();
364         $profile->id = $this->user_id;
365         if (!$profile->find(true)) {
366             throw new NoResultException($profile);
367         }
368         return $profile;
369     }
370
371     public function getActorObject()
372     {
373         return $this->getActor()->asActivityObject();
374     }
375
376     public function getUri()
377     {
378         if (!empty($this->uri)) {
379             return $this->uri;
380         }
381
382         // We (should've in this case) created it ourselves, so we tag it ourselves
383         return self::newUri($this->getActor(), $this->getTarget(), $this->created);
384     }
385
386     static function newUri(Profile $actor, Managed_DataObject $target, $created=null)
387     {
388         if (is_null($created)) {
389             $created = common_sql_now();
390         }
391         return TagURI::mint(strtolower(get_called_class()).':%d:%s:%d:%s',
392                                         $actor->id,
393                                         ActivityUtils::resolveUri(self::getObjectType(), true),
394                                         $target->id,
395                                         common_date_iso8601($created));
396     }
397 }