/// <summary>
/// Добавление указанного пользователя в группу
/// </summary>
/// <param name="userId">идентификатор пользователя</param>
/// <param name="groupId">идентификатор группы</param>
/// <returns>экземпляр участника группы</returns>
public GroupMember AddMember(Guid userId, Guid groupId, bool saveChanges = true)
{
var group = DataService.PerThread.GroupSet.SingleOrDefault(g => g.Id == groupId);
if (group == null)
{
throw new BusinessLogicException("Не найдена группа с указанным идентификатором");
}
var gm = DataService.PerThread.GroupMemberSet.SingleOrDefault(m => m.GroupId == groupId && m.UserId == userId);
if (gm == null)
{
gm = new GroupMember
{
EntryDate = DateTime.Now,
GroupId = groupId,
State = (byte)GroupMemberState.NotApproved,
UserId = userId
};
if (!group.PrivacyEnum.HasFlag(GroupPrivacy.MemberModeration) && group.State != (byte)GroupState.Blank || group.State == (byte)GroupState.Archive)
{
gm.State = (byte)GroupMemberState.Approved;
}
DataService.PerThread.GroupMemberSet.AddObject(gm);
DataService.PerThread.SaveChanges();
if (group.GroupMembers.Count(x => x.State == (byte)GroupMemberState.Moderator) == 0)
{
GroupService.ChangeMemberStatus(userId, group.Id, GroupMemberState.Moderator);
}
SubscriptionService.SubscribeToGroup(group.Url, gm.UserId);
}
else if (gm.State != (byte)GroupMemberState.Approved && gm.State != (byte)GroupMemberState.Moderator)
{
if (gm.State == (byte)GroupMemberState.Banned && DateTime.Now < gm.ExitDate.Value.AddMonths(2))
{
throw new BusinessLogicException("Вы не можете вступать в эту группу еще " + (gm.ExitDate.Value.AddMonths(2) - DateTime.Now).Days + ", так как были заблокированы");
}
if (group.GroupMembers.Count(x => x.State == (byte)GroupMemberState.Moderator) == 0)
{
GroupService.ChangeMemberStatus(userId, group.Id, GroupMemberState.Moderator);
}
else if (!group.PrivacyEnum.HasFlag(GroupPrivacy.MemberModeration) && group.State != (byte)GroupState.Blank)
{
gm.State = (byte)GroupMemberState.Approved;
}
else
{
gm.State = (byte)GroupMemberState.NotApproved;
}
}
UpdateGroupState(group.Id);
return(gm);
}