ios - Likes and comments in Parse -

I am creating an app where I am following classes during the time of user, items and comments.

User: displayName: string

Item: Like: Relation

Comments: Text: String Items: Pointer

What do I need All of which show the collection view, like items and counting (and check whether the current user likes the image or not) with the count of comments.

I am thinking that this is the best solution for this, because I have read that

what is the best class architecture to create such a scene is?

< Item class = "text">

I suggested that with the structure you can go
you find the application very simple, just reuse what was parsed, They did it smart
Re-use their code implementation and smart solutions

Models
User - Original user information (name, email, id, etc.)
Items - Your item has been displayed in the archive. (Photos, ownership, name, etc.)
Activity - (from, type, content) - likes, comments

On the other hand, "make different models for comment" and "2 comments" Will separate.
You should make different classes and institutions while doing programming in general.