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Editorial Team
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Asked: 2026-06-18T02:31:22+00:00

I have a database which contains comments. In the model file I state that

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I have a database which contains comments. In the model file I state that a comment 

belongs_to :user

And in the database there is a user_id field associated with the user it belongs to. Now when a comment is deleted, rather than actually destroying the entry I want to remove the comment’s values and leave it as “This message has been deleted”. However, it seems I am unable to set the user_id field to nil through rails. I’ve tried 

@comment.user_id = nil
@comment.save

As well as

@comment.user = nil
@comment.save

But neither work. What is the solution?

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1 Answer

  1. Editorial Team

    if you’re using a gem in creating a comment, there will be validations on the gem code. You can always bypass these validations by updating via sql. Either you bypass validations @comment.save(validate: false) or update using sql @comment.update_column :user_id, nil.

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