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
|
<?php
/**
* @file
* Business logic for Muamba.
*/
/**
* Request an item.
*
* @param $nid
* Requested item.
*/
function muamba_request($nid) {
global $user;
$nid = (int) $nid;
$node = node_load($nid);
// Access check
if (!$node || $node->type != MUAMBA_NODE_TYPE || !node_access('view', $node)) {
drupal_not_found();
}
// Check if user is blocked by the item owner
if (module_exists('pm_block_user')) {
$owner = user_load($node->uid);
if (pm_block_user_has_blocked($user, $owner)) {
return t('The item owner has blocked you from asking this item.');
}
}
// Check if user already requested the item
if (muamba_check_user_request($nid, $user->uid)) {
return t('You already requested this item.');
}
// Notify item owner
$thread = privatemsg_new_thread(array(user_load($node->uid)), t('Item request'), 'User has requested an item');
$thread_id = $thread['message']->thread_id;
// Issue item request
$request = db_insert('muamba')
->fields(
array(
'nid' => $nid,
'owner' => $node->uid,
'uid' => $user->uid,
'status' => MUAMBA_REQUESTED,
'thread_id' => $thread_id,
)
)
->execute();
// User output
return t('You have requested an item');
}
/**
* Check if user already requested an item.
*
* @param $nid
* Item nid.
*
* @param $uid
* Requester user nid.
*
* @return
* TRUE if user already requested an item, FALSE otherwise.
*/
function muamba_check_user_request($nid, $uid) {
$nid = (int) $nid;
$uid = (int) $uid;
$query = db_select('muamba', 'm');
$query
->condition('m.nid', $nid, '=')
->condition('m.uid', $uid, '=')
->condition('m.status', MUAMBA_REQUESTED, '=');
$result = $query->countQuery()->execute()->fetchField();
if ($result > 0) {
return TRUE;
}
return FALSE;
}
/**
* Get the requests sent or received.
*
* @param $uid
* Requester user uid.
*/
function muamba_get_transactions($uid, $type = 'sent', $status = MUAMBA_REQUESTED) {
$uid = (int) $uid;
$query = db_select('muamba', 'm');
if ($type == 'sent') {
$query
->condition('m.uid', $uid, '=')
->condition('m.status', $status, '=')
->fields('m', array('mid', 'uid', 'owner', 'thread_id'));
}
else {
$query
->condition('m.owner', $uid, '=')
->condition('m.status', $status, '=')
->fields('m', array('mid', 'uid', 'owner', 'thread_id'));
}
$rows = array();
$results = $query->execute()->fetchAll();
// Sanitize the data before handing it off to the theme layer.
foreach ($results as $entry) {
$rows[] = array_map('check_plain', (array) $entry);
}
return $rows;
}
/**
* Transaction management page.
*/
function muamba() {
global $user;
$sent = muamba_get_transactions($user->uid);
$received = muamba_get_transactions($user->uid, 'received');
$output = theme('muamba_transactions', array('transactions' => $sent));
$output .= theme('muamba_transactions', array('transactions' => $received));
return $output;
}
/**
* Accept a transaction request.
*
* @param $mid
* Transaction id.
*
* @todo
*/
function muamba_accept($mid) {
}
/**
* Reject a transaction request.
*
* @param $mid
* Transaction id.
*
* @todo
*/
function muamba_reject($mid) {
}
/**
* Release a transaction.
*
* @param $mid
* Transaction id.
*
* @todo
*/
function muamba_release($mid) {
global $user;
// TODO: load nid from db
$nid = (int) $nid;
$node = node_load($nid);
if (!$node || $node->type != MUAMBA_NODE_TYPE) {
drupal_not_found();
}
if ($node->uid != $user->uid) {
// TODO: not node owner
}
}
/**
* Return an item.
*
* @param $mid
* Transaction id.
*
* @todo
*/
function muamba_return($mid) {
}
|
