I have an attachment in a post and I want to attach it to another post without detaching it from the first post, using the WP API.
2 Answers
When inside of the media uploaded in the post edit screen, just search for your previously attached media and embed it in your new post.
The relationship between posts and attachments is preserved in the database. While an attachment can only belong to one post, it can still be embedded in many posts without worry.
