/// <summary>
/// �ƶ����ѵ���ѡ��
/// </summary>
public string ChangeUserGroup(string userId, string relationshiper, string groupName)
{
UserGroup userGroup = new UserGroup();
string strGroupId = null;
if (groupName == "����")
{
strGroupId = userGroup.GetStrangerGroupId();
}
else if(groupName == "�Լ�")
{
WriteMessage("self");
return null;
}
else
{
strGroupId = userGroup.ExistGroupByName(groupName, userId);
}
if (strGroupId == null || strGroupId == "") // ��������ڸ��飬���ȴ�������
{
string createGroupId = userGroup.CreateGroup(groupName, userId);
if (createGroupId == "")
{
WriteMessage("��������ʧ�ܣ����Ժ����ԣ�");
return null;
}
strGroupId = createGroupId;
}
bool flag = false;
GroupRelation groupRelation = new GroupRelation();
if (groupRelation.ExistGroupRelation(userId, relationshiper))
{// ����Ѿ��ӹ��˺���
bool existGroupRelation = groupRelation.ExistGroupRelation(userId, relationshiper, strGroupId);
if (existGroupRelation == false)
{// �ú��Ѳ��ڸ�����,���ƶ��ú��ѵ�������
flag = groupRelation.UpdateGroupRelation(userId, relationshiper, strGroupId);
}
else
{
flag = true;
}
}
else
{// û�мӹ��˺��ѣ���Ӹú���
flag = groupRelation.InsertGroupRelation(userId, relationshiper, strGroupId);
}
if (flag)
{
return strGroupId;
}
return null;
}
