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<?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 type (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 $data
* Transaction id or node object.
*
* @return
* Transaction data.
*
* @todo
* When a node is provided, duplicate rows might occur.
*/
function muamba_get_transaction($data) {
$query = db_select('muamba', 'm');
$query->fields('m', array('mid', 'nid', 'uid', 'owner', 'status', 'thread_id'));
if (is_object($data)) {
$query->condition('m.nid', $data->nid, '=');
}
else {
$query->condition('m.mid', (int) $data, '=');
}
$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];
}
}
/**
* Check item availability.
*
* @param $nid
* Item nid.
*
* @param $uid
* Requester user nid.
*
* @return
* TRUE if user already requested an item, FALSE otherwise.
*
* @todo
*/
function muamba_check_availability($nid, $uid = NULL) {
}
/**
* Get current transaction for an item.
*
* @param $nid
* Item nid.
*
* @return
* Transaction nid there's an ongoing transaction.
*
* @todo
*/
function muamba_current_transaction($nid) {
$query = db_select('muamba', 'm');
$query->fields('m', array('mid', 'nid', 'uid', 'owner', 'status', 'thread_id'));
$query->condition('m.nid', $nid, '=');
$query->condition(
db_or()
->condition('m.status', MUAMBA_REQUESTED, '=')
->condition('m.status', MUAMBA_ACCEPTED, '=')
->condition('m.status', MUAMBA_RETURNED, '=')
->condition('m.status', MUAMBA_LOST, '=')
);
$results = $query->execute()->fetchAll();
return $results;
}
/**
* Define which status belongs to an ongoing transaction.
*/
function muamba_ongoing() {
return array(
MUAMBA_REQUESTED,
MUAMBA_ACCEPTED,
MUAMBA_RETURNED,
MUAMBA_LOST,
);
}
|
