/**
* Given an array of item ids, remove them from all lists
*
* @param array $ids IDs to remove from the list
* @param string $source Type of resource identified by IDs
*
* @return bool True on success, false on error.
* @access public
*/
public function removeResourcesById($ids, $source = 'VuFind')
{
$sqlIDS = array();
foreach ($ids as $id) {
if (!empty($id)) {
$sqlIDS[] = "'" . $this->escape($id) . "'";
}
}
// No work is needed if we have no IDs to delete:
if (empty($sqlIDS)) {
return true;
}
// Get Resource Ids
$sql = 'SELECT "id" from "resource" ' . 'WHERE ("record_id" = ' . implode($sqlIDS, ' OR "record_id" = ') . ") " . "AND \"source\"='" . $this->escape($source) . "'";
$resources = new Resource();
$resources->query($sql);
if ($resources->N) {
while ($resources->fetch()) {
$resourceList[] = "'" . $this->escape($resources->id) . "'";
}
}
// Remove Resource
$sql = 'DELETE FROM "user_resource" ' . "WHERE \"user_id\" = '" . $this->escape($this->id) . "' " . 'AND ("resource_id" =' . implode($resourceList, ' OR "resource_id" =') . ")";
$removeResource = new User_resource();
$removeResource->query($sql);
// Remove Resource Tags
$sql = 'DELETE FROM "resource_tags" ' . "WHERE \"user_id\" = '" . $this->escape($this->id) . "' " . 'AND ("resource_id" =' . implode($resourceList, ' OR "resource_id" =') . ")";
$removeTags = new Resource_tags();
$removeTags->query($sql);
// Update mofidication dates for all lists
$this->updateListModifiedDates();
// If we got this far, there were no fatal DB errors so report success
return true;
}
/**
* Remove all resources and tags and delete a list.
*
* @return bool True on success, false on error.
* @access public
*/
public function emptyList()
{
// Remove Resources
$sql = 'DELETE FROM "user_resource" ' . "WHERE \"user_id\" = '" . $this->escape($this->user_id) . "' " . "AND \"list_id\" = '" . $this->escape($this->id) . "'";
$removeResource = new User_resource();
$removeResource->query($sql);
// Remove Resource Tags
$sql = 'DELETE FROM "resource_tags" ' . "WHERE \"user_id\" = '" . $this->escape($this->user_id) . "' " . "AND \"list_id\" = '" . $this->escape($this->id) . "'";
$removeTags = new Resource_tags();
$removeTags->query($sql);
// Remove the List
$this->delete();
// If we got this far, there were no fatal DB errors so report success
return true;
}
