public async Task <User> AddFriendByName(string friendName)
{
IMongoQueryable <User> query = from user in dataBaseService.UserCollection.AsQueryable()
where user.Name.Equals(friendName)
select user;
if (await query.AnyAsync())
{
User friend = await query.FirstAsync();
Friendship friendship = new Friendship
{
Receiver = friend._id,
Requester = loginService.UserId,
Date = DateTime.Now,
Accepted = false
};
friend.Friendship = friendship;
await SendRequest(friend._id, friendship);
return(friend);
}
return(null);
}
public async Task <ObjectId> GetUserId(string userName)
{
IMongoQueryable <ObjectId> query = from user in UserCollection.AsQueryable()
where user.Name.Equals(userName)
select user._id;
return((await query.AnyAsync()) ? await query.FirstAsync() : ObjectId.Empty);
}
public async Task <T> FirstAsync(Expression <Func <T, bool> > predicate)
{
return(await collectionQueryable.FirstAsync(predicate));
}
public Task <TType> FirstAsync()
{
return(_query.FirstAsync());
}
