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
|
<?php
/**
* @fils
* Database functions.
*/
/**
* 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.
*
* @param $type
* Transaction perspective (sent or received).
*
* @param $status
* Current transaction status.
*
* @return
* Array of existing transactions.
*/
function muamba_get_transactions($uid, $type = 'sent', $status = NULL) {
$uid = (int) $uid;
$query = db_select('muamba', 'm');
$query->fields('m', array('mid', 'nid', 'uid', 'owner', 'status', 'thread_id'));
if ($type == 'sent') {
$query->condition('m.uid', $uid, '=');
}
else {
$query->condition('m.owner', $uid, '=');
}
if ($status != NULL) {
$query->condition('m.status', $status, '=');
}
$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;
}
/**
* Get a single transaction.
*
* @param $mid
* Transaction id.
*
* @return
* Transaction data.
*/
function muamba_get_transaction($mid) {
$query = db_select('muamba', 'm');
$query->fields('m', array('mid', 'nid', 'uid', 'owner', 'status', 'thread_id'));
$query->condition('m.mid', (int) $mid, '=');
$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) $entry);
}
if (isset($rows[0])) {
return $rows[0];
}
}
/**
* Get current transaction for an item. Note that there might
* be more than one active transaction for a given item if they
* all are in the "requested" state.
*
* @param $data
* Item nid or node object.
*
* @param $uid
* Optional requester user id.
*
* @return
* Data of the ongoing transactions. If $uid is specified,
* then just one transaction is returned.
*/
function muamba_current_transactions($data, $uid = NULL) {
if (is_object($data)) {
$nid = (int) $data->nid;
}
else {
$nid = (int) $data;
}
$query = db_select('muamba', 'm');
$query->fields('m', array('mid', 'nid', 'uid', 'owner', 'status', 'thread_id'));
$query
->condition('m.nid', $nid, '=')
->condition('m.active', '1', '=');
if ($uid != NULL) {
$query->condition('m.uid', (int) $uid, '=');
}
$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) $entry);
}
if ($uid != NULL && isset($rows[0])) {
return $rows[0];
}
return $rows;
}
/**
* Check item availability.
*
* @param $data
* Item nid or node object.
*
* @return
* TRUE if item is borrowed, FALSE otherwise.
*/
function muamba_check_availability($data) {
if (is_object($data)) {
$nid = (int) $data->nid;
}
else {
$nid = (int) $data;
}
$query = db_select('muamba', 'm');
$query->fields('m', array('mid', 'nid', 'uid', 'owner', 'status', 'thread_id'));
$query
->condition('m.nid', $nid, '=')
->condition('m.active', '1', '=')
->condition('m.status', MUAMBA_REQUESTED, '!=');
$current = $query->execute()->fetchAll();
if (empty($current)) {
return TRUE;
}
return FALSE;
}
/**
* Update a transaction status.
*
* @param $mid
* Transaction id.
*
* @param $status
* New status.
*/
function muamba_update_status($mid, $status) {
$update = db_update('muamba')
->fields(array(
'status' => $status,
'changed' => REQUEST_TIME,
))
->condition('mid', $mid, '=')
->execute();
// Close transaction depending on the status.
if (!in_array($status, muamba_ongoing())) {
muamba_finish($mid);
}
}
/**
* Finish a transaction.
*
* @param $mid
* Transaction id.
*/
function muamba_finish($mid) {
$update = db_update('muamba')
->fields(array(
'active' => 0,
))
->condition('mid', $mid, '=')
->execute();
}
|
