aboutsummaryrefslogtreecommitdiff
path: root/mod/activity/start.php
blob: 56ba5e69ffcdab16c15b54d496664c97e5aa5b55 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
<?php
	/**
	 * Elgg activity plugin.
	 * 
	 * @package ElggActivity
	 * @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU Public License version 2
	 * @author Curverider Ltd
	 * @copyright Curverider Ltd 2008
	 * @link http://elgg.com/
	 */

	/**
	 * Initialise the activity.
	 *
	 */
	function activity_init()
	{
		global $CONFIG;
		
		// Register and optionally replace the dashboard
		if (get_plugin_setting('useasdashboard', 'activity') == 'yes')
			register_page_handler('dashboard','activity_page_handler');
		
		// Page handler
		register_page_handler('activity','activity_page_handler');
		
		// Add our CSS
		extend_view('css','activity/css');
		
		// Activity main menu
		if (isloggedin())
		{
			add_menu(elgg_echo('activity'), $CONFIG->wwwroot . "pg/activity/{$_SESSION['user']->username}/", array(), 'activity');
		}
	}
	
	/**
	 * Post init gumph.
	 */
	function activity_page_setup()
	{
		global $CONFIG;
		
		if ((get_context()=='activity') || (get_context()=='dashboard'))
		{
			add_submenu_item(elgg_echo('activity:your'), $CONFIG->wwwroot."pg/activity/{$_SESSION['user']->username}/");
			add_submenu_item(elgg_echo('activity:friends'), $CONFIG->wwwroot."pg/activity/{$_SESSION['user']->username}/friends/");
			add_submenu_item(elgg_echo('activity:all'), $CONFIG->wwwroot."pg/activity/");
		}
	}
	
	/**
	 * Page handler for activity.
	 *
	 * @param unknown_type $page
	 */
	function activity_page_handler($page)
	{
		global $CONFIG;
		
		if (($page[0]) && ($page[1]!='uuid')) set_input('username', $page[0]);
		
		if ($page[0]) {
			if ($page[1])
			{
				switch ($page[1])
				{
					case 'friends' :
						include($CONFIG->pluginspath . "activity/friends.php");
					break;
					case 'uuid' : // Endpoint for UUID export of statements
						switch ($page[2])
						{
							case 'metadata' : set_input('metaname', $page[4]);
							case 'statement' : set_input('statement_id', $page[3]);
											  set_input('statement_type', $page[2]);
											  elgg_set_viewtype('opendd');
						}
						
						include($CONFIG->pluginspath . "activity/opendd.php");	
					break;
				}
			}
			else
				include($CONFIG->pluginspath . "activity/index.php");	
		} else
			include($CONFIG->pluginspath . "activity/all.php");
	}
	
	/**
	 * Construct and execute the query required for the activity stream.
	 *
	 * @param int $limit Limit the query.
	 * @param int $offset Execute from the given object
	 * @param mixed $type A type, or array of types to look for. Note: This is how they appear in the SYSTEM LOG.
	 * @param mixed $subtype A subtype, or array of types to look for. Note: This is how they appear in the SYSTEM LOG.
	 * @param mixed $owner_guid The guid or a collection of GUIDs
	 * @param string $owner_relationship If defined, the relationship between $owner_guid and the entity owner_guid - so "is $owner_guid $owner_relationship with $entity->owner_guid"
	 * @return array An array of pre-rendered elgg_views on the data.
	 */
	function activity_get_activity_data($limit = 10, $offset = 0, $type = "", $subtype = "", $owner_guid = "", $owner_relationship = "" )
	{
		global $CONFIG;
		
		$limit = (int)$limit;
		$offset = (int)$offset;
	
		if (!is_array($type))
			$type = array(sanitise_string($type));
		else
			foreach ($type as $k => $v)
				$type[$k] = sanitise_string($v);
		
		if (!is_array($subtype))
			$subtype = array(sanitise_string($subtype));
		else
			foreach ($subtype as $k => $v)
				$subtype[$k] = sanitise_string($v);
		
		if (is_array($owner_guid))
			foreach ($owner_guid as $k => $v)
				$owner_guid[$k] = (int)$v;
		else
			$owner_guid = array((int)$owner_guid);
			
		$owner_relationship = sanitise_string($owner_relationship);
		
		// Get a list of possible views
		$activity_events= array(); 
		$activity_views = array_merge(elgg_view_tree('activity', 'default'), elgg_view_tree('river', 'default')); // Join activity with river

		$done = array();
			
		foreach ($activity_views as $view)
		{
			$fragments = explode('/', $view);
			$tmp = explode('/',$view, 2);
			$tmp = $tmp[1];
			
			if ((isset($fragments[0])) && (($fragments[0] == 'river') || ($fragments[0] == 'activity')) 
				&& (!in_array($tmp, $done)))
			{
				if (isset($fragments[1]))
				{
					$f = array();
					for ($n = 1; $n < count($fragments); $n++)
					{
						$val = sanitise_string($fragments[$n]);
						switch($n)
						{
							case 1: $key = 'type'; break;
							case 2: $key = 'subtype'; break;
							case 3: $key = 'event'; break;
						}
						$f[$key] = $val;
					}
					$activity_events[] = $f; 
				}
				
				$done[] = $tmp; 
			}
			
			
		}

		$n = 0;
		foreach ($activity_events as $details)
		{
			// Get what we're talking about
		
			if ($details['subtype'] == 'default') $details['subtype'] = '';
			
			if (($details['type']) && ($details['event'])) {
				if ($n>0) $obj_query .= " or ";
				
				$access = "";
				if ($details['type']!='relationship')
					$access = " and " . get_access_sql_suffix('sl');
				 
				$obj_query .= "( sl.object_type='{$details['type']}' and sl.object_subtype='{$details['subtype']}' and sl.event='{$details['event']}' $access )";
				
				$n++;
			}
		
		}		
	
		// User
		if ((count($owner_guid)) &&  ($owner_guid[0]!=0)) {
			$user = " and sl.performed_by_guid in (".implode(',', $owner_guid).")";
			
			if ($owner_relationship)
			{
				$friendsarray = "";
				if ($friends = get_entities_from_relationship($owner_relationship,$owner_guid[0],false,"user",$subtype,0,"time_created desc",9999)) {
					$friendsarray = array();
					foreach($friends as $friend) {
						$friendsarray[] = $friend->getGUID();
					}
					
					$user = " and sl.performed_by_guid in (".implode(',', $friendsarray).")";
				}
				
			}
		}
		
		$query = "SELECT sl.* from {$CONFIG->dbprefix}system_log sl  where 1 $user and ($obj_query) order by sl.time_created desc  limit $offset, $limit";
		return get_data($query);
	}
	
	/**
	 * Pull activity from the system log.
	 * 
	 * This works in a similar way to the river code, but looks for activity views instead.
	 *
	 * @param int $limit Limit the query.
	 * @param int $offset Execute from the given object
	 * @param mixed $type A type, or array of types to look for. Note: This is how they appear in the SYSTEM LOG.
	 * @param mixed $subtype A subtype, or array of types to look for. Note: This is how they appear in the SYSTEM LOG.
	 * @param mixed $owner_guid The guid or a collection of GUIDs
	 * @param string $owner_relationship If defined, the relationship between $owner_guid and the entity owner_guid - so "is $owner_guid $owner_relationship with $entity->owner_guid"
	 * @return array An array of pre-rendered elgg_views on the data.
	 */
	function activity_get_activity($limit = 10, $offset = 0, $type = "", $subtype = "", $owner_guid = "", $owner_relationship = "" )
	{
		global $CONFIG;
		
		$log_data = activity_get_activity_data($limit, $offset, $type, $subtype, $owner_guid, $owner_relationship);

		// until count reached, loop through and render
		$activity = array();
		
		if ($log_data)
		{
			foreach ($log_data as $log)
			{
				// See if we have access to the object we're talking about
				$statement = construct_riverstatement_from_log($log);
				
				$event = $log->event;
				$class = $log->object_class;
				$type = $log->object_type;
				$subtype = $log->object_subtype;
				$tmp = new $class();
				$object = $tmp->getObjectFromID($log->object_id);	
				$by_user_obj = get_entity($log->performed_by_guid);
				
				// Belts and braces
				if ($statement)
				{
					$tam = "";
					
					// Now construct and call the appropriate views
					
					if ($subtype == "widget") { // Special case for widgets
						$subtype = "widget/" . $object->handler;
					}
					if ($subtype == '')
						$subtype = 'default';
						
						
					$activity_view = 'activity';	
					if (!elgg_view_exists("$activity_view/$type/$subtype/$event"))
						$activity_view = 'river';
									
					$tam = elgg_view("$activity_view/$type/$subtype/$event", array(
						'statement' => $statement
					));
					
					
					// Giftwrap
					if (!empty($tam)) {
						$tam = elgg_view("activity/wrapper",array(
									'entry' => $tam,
									'time' => $log->time_created,
									'event' => $event,
									'statement' => $statement 
						));
					}
					
					$activity[] = $tam;
				}
			}
		}
		
		return $activity;
		
	}
	
	/**
	 * Export a given field of a statement as a bit of opendd metadata
	 *
	 * @param ElggRiverStatement $statement
	 * @param int $logid The id of the log entry this was generated from
	 * @param string $field The fieldname
	 * @return ODDMetadata object or false if field not available.
	 */
	function activity_export_field_from_statement(ElggRiverStatement $statement, $logid, $field)
	{
		global $CONFIG;
		
		$result = false;
		
		// Convert
		$object_return = $statement->getObject();
		if (is_array($object_return)) {
			
			$object = array();
			foreach ($object_return as $c)
				$object[] = $c;
		}
		else
			$object = $object_return;
			

		switch ($field)
		{
			case 'timestamp' : $value = $statement->getTimestamp(); break;
			case 'event' : $value = $statement->getEvent(); break;
			case 'subject' : $subject = $statement->getSubject();
							$value = guid_to_uuid($subject->guid);		
							break;				
			case 'object' : 
							if ($object instanceof ElggEntity) $value = guid_to_uuid($object->guid);
							if ((is_array($object)) && (isset($object[0]))) {
								if ( ($object[0] instanceof ElggEntity) || ($object[0] instanceof ElggExtender) || ($object[0] instanceof ElggRelationship))
									$value = get_uuid_from_object($object[0]);
								else
									$value = $object[0];
							}
							break;
			case 'object2' :
				 
				if ( (is_array($object)) && (isset($object[1]))) {
					if ( ($object[1] instanceof ElggEntity) || ($object[1] instanceof ElggExtender) || ($object[1] instanceof ElggRelationship))
						$value = get_uuid_from_object($object[1]);
					else
						$value = $object[1];
				}
				
				break;
			case 'object3' :
				 
				if ( (is_array($object)) && (isset($object[2]))) {
					if ( ($object[2] instanceof ElggEntity) || ($object[2] instanceof ElggExtender) || ($object[2] instanceof ElggRelationship))
						$value = get_uuid_from_object($object[2]);
					else
						$value = $object[2];
				}
				
				break;
			
		}
		
		//$md = new ODDMetaData("{$CONFIG->url}pg/activity/export/uuid/metadata/$id/$metaname/", "{$CONFIG->url}pg/activity/export/uuid/metadata/$id/", $metaname, $value);
		if ($value)
			$result = new ODDMetaData("{$CONFIG->url}pg/activity/export/uuid/metadata/$logid/$field/", "{$CONFIG->url}pg/activity/export/uuid/metadata/$logid/", $field, $value);

		return $result;
	}
	
	/**
	 * Export an Elgg river statement as OpenDD
	 *
	 * @param ElggRiverStatement $statement
	 * @param int $logid The id of the log entry this was generated from
	 */
	function activity_export_statement(ElggRiverStatement $statement, $logid)
	{
		global $CONFIG;
		
		$result = array();
		
		// Export activity
		$result[] = new ODDEntity("{$CONFIG->url}pg/activity/export/uuid/statement/$logid/", 'riverstatement');
		
		foreach ( 
				array(
				'timestamp', 
				'subject', 
				'object', 
				'object2', 
				'object3', 
				'event') as $field
		)
			$result[] = activity_export_field_from_statement($statement, $logid, $field);
			
		
		return $result;
	}
	
	/**
	 * Get the activity stream and output it as an opendd feed of data
	 *
	 * @param unknown_type $limit
	 * @param unknown_type $offset
	 * @param unknown_type $type
	 * @param unknown_type $subtype
	 * @param unknown_type $owner_guid
	 * @param unknown_type $owner_relationship
	 */
	function activity_get_activity_opendd($limit = 10, $offset = 0, $type = "", $subtype = "", $owner_guid = "", $owner_relationship = "" )
	{
		global $CONFIG;
		
		$log_data = activity_get_activity_data($limit, $offset, $type, $subtype, $owner_guid, $owner_relationship);

		// until count reached, loop through and render
		$activity = array();
		
		if ($log_data)
		{
			foreach ($log_data as $log)
			{
				// See if we have access to the object we're talking about
				$statement = construct_riverstatement_from_log($log);
				
				$event = $log->event;
				$class = $log->object_class;
				$type = $log->object_type;
				$subtype = $log->object_subtype;
				$tmp = new $class();
				$object = $tmp->getObjectFromID($log->object_id);	
				$by_user_obj = get_entity($log->performed_by_guid);
				
				// Belts and braces
				if ($statement)
				{
					$activity[] = activity_export_statement($statement, $log->id);
				}
			}
		}
		
		return $activity;
	}
	
	
	
	// river index with tabs to drill down
	
	
	
	
	/// BONUS POINTS
	
	// comment on feed items
	
	// comment on search terms/ tags
	
	
	// Initialise plugin
	register_elgg_event_handler('init','system','activity_init');
	register_elgg_event_handler('pagesetup','system','activity_page_setup');
?>