function execCreateGroup($userID, $groupMember, $groupName)
{
$userDAO = new UserDAO();
$user = $userDAO->getUserByID($userID);
if ($user->getRole()->getRoleID() == "4") {
return "This user was forbidden to do this!";
}
if (gettype($groupMember) != "array") {
return "Wrong type of group member!";
}
if (count($groupMember) === 0) {
return "You must choose at least one group member!";
}
if (count(array_unique($groupMember)) < count($groupMember)) {
return "Group member has duplicate value!";
}
if (in_array($userID, $groupMember)) {
return "Group owner should not be a group member!";
}
if ($groupName === "" || !isValidGroupName($groupName)) {
return "Invalid group name, length should be between 2 to 20 and only accepts a-z, A-Z, single space!";
}
$arr = array();
foreach ($groupMember as $groupUserID) {
$groupUser = $userDAO->getUserByID($groupUserID);
if ($groupUser === null) {
return "Could not find some group members!";
}
$arr[] = $groupUser;
}
$newGroup = new Group($user, $groupName, "1");
$groupDAO = new GroupDAO();
$groupDAO->insertGroup($newGroup);
$gmDAO = new GroupMemberDAO();
$newGM = new GroupMember($newGroup, $user, "1");
$gmDAO->insertGroupMember($newGM);
foreach ($arr as $gmUser) {
$newGM = new GroupMember($newGroup, $gmUser, "2");
$gmDAO->insertGroupMember($newGM);
}
return true;
}
function execAddToGroup($userID, $groupID, $adduserIDs)
{
$userDAO = new UserDAO();
$user = $userDAO->getUserByID($userID);
if (!isValidID($groupID)) {
return "Invalid group ID!";
}
if (gettype($adduserIDs) != "array") {
return "Wrong type of user id!";
}
if (count($adduserIDs) === 0) {
return "You have to choose users to add to this group!";
}
foreach ($adduserIDs as $adduserID) {
if (!isValidID($adduserID)) {
return "Invalid user ID!";
}
}
$groupDAO = new GroupDAO();
$group = $groupDAO->getGroupByID($groupID);
if ($group === null) {
return "Group doesn't exist!";
}
if ($group->getOwner()->getUserID() !== $userID) {
return "You are not the owner of this group!";
}
$gmDAO = new GroupMemberDAO();
foreach ($adduserIDs as $auID) {
$aduser = $userDAO->getUserByID($auID);
if ($aduser === null) {
continue;
}
$gm = $gmDAO->getGroupMember($group, $aduser);
if ($gm !== null) {
continue;
}
$gm = new GroupMember($group, $aduser, "2");
$gmDAO->insertGroupMember($gm);
}
return true;
}
