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<?php
class PermissionDbUpdate
{
/**
* Insert all user/role combinations into the role_x_user table.
*
* @param int[] $users userids
* @param int[] $roles roleids
*/
public static function addRoleToUser($users, $roles)
{
if (empty($users) || empty($roles))
return 0;
$arg = array();
foreach ($users AS $userid) {
foreach ($roles AS $roleid) {
$arg[] = compact('userid', 'roleid');
}
}
return Database::exec("INSERT IGNORE INTO role_x_user (userid, roleid) VALUES :arg",
['arg' => $arg]);
}
/**
* Remove all user/role combinations from the role_x_user table.
*
* @param int[] $users userids
* @param int[] $roles roleids
*/
public static function removeRoleFromUser($users, $roles)
{
if (empty($users) || empty($roles))
return 0;
$query = "DELETE FROM role_x_user WHERE userid IN (:users) AND roleid IN (:roles)";
return Database::exec($query, array("users" => $users, "roles" => $roles));
}
/**
* Assign the specified roles to given users, removing any roles from the users
* that are not in the given set.
*
* @param int[] $users list of user ids
* @param int[] $roles list of role ids
*/
public static function setRolesForUser($users, $roles)
{
$count = Database::exec("DELETE FROM role_x_user WHERE userid in (:users) AND roleid NOT IN (:roles)",
compact('users', 'roles'));
return $count + self::addRoleToUser($users, $roles);
}
/**
* Delete role from the role table.
*
* @param string $roleid roleid
*/
public static function deleteRole($roleid)
{
return Database::exec("DELETE FROM role WHERE roleid = :roleid", array("roleid" => $roleid));
}
/**
* Save changes to a role or create a new one.
*
* @param string $rolename rolename
* @param int[] $locations array of locations
* @param string[] $permissions array of permissions
* @param string|null $roleid roleid or null if the role does not exist yet
*/
public static function saveRole($rolename, $locations, $permissions, $roleid = null)
{
foreach ($permissions as &$permission) {
$permission = strtolower($permission);
}
unset($permission);
if ($roleid) {
Database::exec("UPDATE role SET rolename = :rolename WHERE roleid = :roleid",
array("rolename" => $rolename, "roleid" => $roleid));
Database::exec("DELETE FROM role_x_location
WHERE roleid = :roleid AND (locationid NOT IN (:locations) OR locationid IS NULL)",
array("roleid" => $roleid, 'locations' => $locations));
Database::exec("DELETE FROM role_x_permission
WHERE roleid = :roleid AND permissionid NOT IN (:permissions)",
array("roleid" => $roleid, 'permissions' => $permissions));
} else {
Database::exec("INSERT INTO role (rolename) VALUES (:rolename)", array("rolename" => $rolename));
$roleid = Database::lastInsertId();
}
$arg = array_map(function ($loc) use ($roleid) {
return compact('roleid', 'loc');
}, $locations);
Database::exec("INSERT IGNORE INTO role_x_location (roleid, locationid) VALUES :arg", ['arg' => $arg]);
$arg = array_map(function ($perm) use ($roleid) {
return compact('roleid', 'perm');
}, $permissions);
Database::exec("INSERT IGNORE INTO role_x_permission (roleid, permissionid) VALUES :arg", ['arg' => $arg]);
}
}
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