Wsrtjtyk

When duplicating an object with object_dup = object.dup, all associations are copied.

object_dup.foos == object.foos

I would like to duplicate/clone object without its associations, or delete the associations all after duplication. I would like to destroy all duplicated associations on object_dup. It might be easier to just create a new object, but duplication saves me from property-setting-hell.

Is that possible?

Actually .dup method didn't duplicate associations, it just copy the foreign key (parents).

Examples:

# Original

my_post = Post.first

=> #<Post id: 1, title: 'blabla', category_id: 10>



# Duplicate

my_post.dup

=> #<Post id: nil, title: 'blabla', category_id: 10>



# Have the same category_id (10)

My best way to duplicate without some attributes :

Post.new(my_post.attributes.slice('titles'))

=> #<Post id: nil, title: 'blabla', category_id: nil>

Here we creating a new empty Post, get original post attributes with my_post.attributes and slice only attributes we want with slice('title') (accept multiples attributes, examples: slice('title', 'content', 'tags'))

.dup Documentation

.slice Documentation