public async Task <IActionResult> FollowUser(string id)
{
FollowedUser u = new FollowedUser();
u.UserToFollow = id;
u.FollowingUser = User.FindFirst(ClaimTypes.NameIdentifier).Value;
_context.FollowedUsers.Add(u);
await _context.SaveChangesAsync();
return(RedirectToAction("Index"));
}
public Task AddFollowerToUser(string user, string userToFollow)
{
if (!this.FollowedUsers.Any(_ => _.Followed == userToFollow && _.User == user))
{
var follower = new FollowedUser
{
User = user,
Followed = userToFollow
};
this.FollowedUsers.Add(follower);
}
return(Task.CompletedTask);
}
public FollowedUser FollowUser([FromBody] UserIds userIds)
{
string userId = userIds.userId;
string followedUserId = userIds.followedUserId;
GraphClientConnection graphClient = new GraphClientConnection();
FollowedUser followedUser = new FollowedUser();
if (graphClient == null)
{
StatusCode(500);
return(null);
}
string matchQuery = "(user:User{id:'" + userId + "'})-[follow:FOLLOW]->(followedUser:User{id:'" + followedUserId + "'})";
var followedUserQuery = graphClient.client.Cypher
.Match(matchQuery)
.Return((followedUser) => new {
FollowedUser = followedUser.As <FollowedUser>(),
})
.Results;
if (followedUserQuery.Count() == 1) // relation between nodes exist already, so, you need to delete that relation
{
graphClient.client.Cypher
.Match(matchQuery)
.Delete("follow")
.ExecuteWithoutResults();
//204
return(null);
}
var newFollowerQuery = graphClient.client.Cypher
.Match("(user:User{id:'" + userId + "'}),(followedUser:User{id:'" + followedUserId + "'})")
.Create("(user)-[:FOLLOW]->(followedUser)")
.Return((followedUser) => new {
FollowedUser = followedUser.As <FollowedUser>(),
})
.Results;
followedUser.id = newFollowerQuery.ToList()[0].FollowedUser.id;
followedUser.name = newFollowerQuery.ToList()[0].FollowedUser.name;
followedUser.age = newFollowerQuery.ToList()[0].FollowedUser.age;
followedUser.gender = newFollowerQuery.ToList()[0].FollowedUser.gender;
return(followedUser);
}
