Remove object from has_many but don't delete the original record in Rails?

Question

I have this:

Post.paragraphs << new_paragraph

And I need to remove paragraph by id = 3, so the following deletes the record completel

Answer 1

You should not use the delete method on the Paragraphobject, but instead use the delete method of paragraphs relation, like this:

post.paragraphs.delete(Paragraph.find(paragraph_id))