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How to implement nested comments in a forum application?

Started by Alex Smith2 hours ago

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Alex Smith

Posted 2 hours ago

I'm building a forum application and want to implement nested comments. What are the best practices for structuring the data and UI for this?

I've considered using a tree structure where each comment has a parent_id. However, I'm concerned about performance with deep nesting.

Data Modeling Performance Frontend
MJ

Michael Johnson

Posted 1 hour ago

I recommend using a recursive component structure for nested comments. For data, you can use a JSON tree structure where each comment has:

  • id: unique identifier
  • parentId: to track the parent comment
  • content: the comment text
  • author: author information
  • timestamp: date of creation
JD
John Doe

Posted 45 minutes ago

Great point about the data structure! I've been considering a flat structure with a recursive component tree. What about using a flat database with a JSONB field for comments? That could simplify queries.

EP
Emma Parker

Posted 30 minutes ago

I've implemented a similar structure in React. The key is to use a recursive component that renders children based on the parentId. Performance-wise, I've found that virtualizing the comments list works well for deep trees.

RT

Robert Taylor

Posted 45 minutes ago

For UI implementation, I recommend using a tree view component. There are great libraries like react-treeview or vue-nested. They handle the rendering of nested elements efficiently.

SC

Sarah Connor

Posted 30 minutes ago

I've found that using a flat structure with a recursive component works best for performance. We store each comment as a separate row in the database, and then use a recursive component to render children. This way, we can use virtualization for long comment threads.