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Ruby

Posted by Yash Shah
Yash Shah
Courses Plus Student 1,691 Points

Know if user is blocked

Hi, I have implemented user_friendship model according to the model given in the tutorials. 

has_many :blocked_user_friendships, class_name: 'UserFriendship',
                                    foreign_key: :user_id,
                                    conditions: { state: 'blocked_to'}


has_many :blocked_friends, through: :blocked_user_friendships, source: :friend

I can get whole list by current_user.blocked_friends but i want to query about a particular user.

I am right now doing it by

current_user.blocked_friends.include?(user)

I would like to know what will be right way to know if a user is blocked by current_user?

1 Answer

Alan Johnson
Alan Johnson
7,625 Points
Alan Johnson
Alan Johnson
7,625 Points

So checking with include? is certainly one way to do it, but if a user has a huge set of blocked_friends it'll certainly slow things down for you. My recommendation would be to implement it by adding a blocked? method on User that looks something like this:

def blocked?(friend)
  blocked_users.where(user_id: friend.id).count > 0
end

That method will basically check if there's a user that matches the friend passed as a parameter, but will check it in the database rather than by pulling the complete set.