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
|
<?php
/**
* @file
* Business logic for Muamba.
*/
/**
* Determine possible actions for a transaction.
*
* @param $type
* Transaction type (sent or received).
*
* @param $status
* Current transaction status.
*
* @return
* Array of available action codes.
*/
function muamba_actions_available($type = 'sent', $status) {
if ($type == 'sent') {
switch ($status) {
case MUAMBA_REQUESTED:
$actions = array(
MUAMBA_CANCELLED,
);
break;
case MUAMBA_ACCEPTED:
$actions = array(
MUAMBA_RETURNED,
);
break;
default:
$actions = array();
}
}
else {
switch ($status) {
case MUAMBA_REQUESTED:
$actions = array(
MUAMBA_ACCEPTED,
MUAMBA_REJECTED,
);
break;
case MUAMBA_ACCEPTED:
$actions = array(
MUAMBA_RELEASED,
);
break;
case MUAMBA_RETURNED:
$actions = array(
MUAMBA_RELEASED,
);
break;
default:
$actions = array();
}
}
return $actions;
}
/**
* Transaction management page.
*/
function muamba() {
global $user;
$sent = muamba_transactions_summary(muamba_get_transactions($user->uid));
$received = muamba_transactions_summary(muamba_get_transactions($user->uid, 'received'));
$output = theme('muamba_transactions', array('transactions' => $sent, 'type' => 'sent'));
$output .= theme('muamba_transactions', array('transactions' => $received, 'type' => 'received'));
return $output;
}
/**
* Request an item.
*
* @param $nid
* Requested item.
*/
function muamba_request($nid) {
global $user;
$nid = (int) $nid;
$node = node_load($nid);
// Access check
if (!muamba_has_request_access($node)) {
drupal_not_found();
}
// Check if user is blocked by the item owner
if (muamba_user_has_blocked($node, $user)) {
return t('The item owner has blocked you from asking this item.');
}
// Check if user already requested the item
if (muamba_check_user_request($nid, $user->uid)) {
return t('You already requested this item.');
}
// Create transaction
$transaction = array(
'nid' => $nid,
'owner' => $node->uid,
'uid' => $user->uid,
'status' => MUAMBA_REQUESTED,
);
// Issue item request
$transaction['mid'] = db_insert('muamba')
->fields($transaction)
->execute();
// Notify item owner
$subject = t('Item request: @title', array('@title' => check_plain($node->title)));
$message = theme('muamba_request_message', array('transaction' => $transaction));
$thread = privatemsg_new_thread(array(user_load($node->uid)), $subject , $message);
$thread_id = $thread['message']->thread_id;
// Update request with thread id
$update = db_update('muamba')
->fields(array(
'thread_id' => $thread_id,
))
->condition('mid', $transaction['mid'], '=')
->execute();
// User output
return t('You have requested an item');
}
/**
* Accept a transaction request.
*
* @param $mid
* Transaction id.
*
* @todo
*/
function muamba_accept($mid) {
global $user;
$mid = (int) $mid;
$transaction = muamba_get_transaction($mid);
$node = node_load($transaction->nid);
// Access check
if (!muamba_has_management_access($node)) {
drupal_not_found();
}
// Status check
if ($transaction->status != MUAMBA_REQUESTED) {
drupal_not_found();
}
// Update database
$update = db_update('muamba')
->fields(array(
'status' => MUAMBA_ACCEPTED,
))
->condition('mid', $mid, '=')
->execute();
// Notify item owner
// TODO
return t('Accepted item request.');
}
/**
* 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) {
}
/**
* Cancel a request.
*
* @param $mid
* Transaction id.
*
* @todo
*/
function muamba_cancel($mid) {
}
|
