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<?php
/**
* @file
* Business logic handling functions 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,
'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;
}
/**
* Release an item requested by a given user.
*
* @param $nid
* Item nid.
*
* @param $uid
* Requester user uid.
*
* @todo
*/
function muamba_release($nid, $uid) {
global $user;
$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
}
}
/**
* Get the requests sent or received.
*
* @param $uid
* Requester user uid.
*
* @todo
*/
function muamba_get_requests($nid, $type = 'sent') {
}
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