In your Controller's #new and #create methods, scope the post to be owned by the current_user (or whatever other scheme you may be using for your logged-in-user management).
@post = current_user.posts.build
@post = current_user.posts.create(post_params)
Now your relationship will take care of getting the correct user in there automatically, whether it's in-memory or in persistence.
NB: If this doesn't appear to work, then you haven't built your relationships correctly, and you need to fix that before proceeding.
> On Mar 2, 2020, at 12:59 AM, fugee ohu <fuge...@gmail.com> wrote:
> How do i add user_id to a new record without placing it in a form as a hidden field? I tried adding in the controller's create action just before `if @post.save?` but that didn't cause new records created to have a value for user_id Maybe it was because I'm using a nested form and this record is a child record
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