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
|
<?php
/**
* Elgg activity stream.
* Functions for listening for and generating the rich activity stream from the
* system log.
*
* @package Elgg
* @subpackage Core
* @author Curverider Ltd
* @link http://elgg.org/
*/
/**
* 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 $entity->owner_guid"
* @return array An array of system log entries.
*/
function get_activity_stream_data($limit = 10, $offset = 0, $type = "", $subtype = "", $owner_guid = "", $owner_relationship = "")
{
global $CONFIG;
$limit = (int)$limit;
$offset = (int)$offset;
if ($type) {
if (!is_array($type))
$type = array(sanitise_string($type));
else
foreach ($type as $k => $v)
$type[$k] = sanitise_string($v);
}
if ($subtype) {
if (!is_array($subtype))
$subtype = array(sanitise_string($subtype));
else
foreach ($subtype as $k => $v)
$subtype[$k] = sanitise_string($v);
}
if ($owner_guid) {
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;
}
// Filter result based on parameters
$add = true;
if ($type) {
if (!in_array($f['type'], $type)) $add = false;
}
if (($add) && ($subtype)) {
if (!in_array($f['subtype'], $subtype)) $add = false;
}
if (($add) && ($event)) {
if (!in_array($f['event'], $event)) $add = false;
}
if ($add)
$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);
}
?>
|
