How to add relationships between custom post types?

Question

Let's say i have a sample post called "avatar" in "movie", "trailer", "review" and "details" custom post types.

How can i display in the "movie" custom post type the content + links to "trailer", "review" and "details" custom post types ?

Answer 1

Ideally, you'd want to cast your vote into adding the infamous post2post relationship, which is still missing:

http://core.trac.wordpress.org/ticket/14513

In the meanwhile, the workarounds are three:

1. Map your posts to specially crafted taxonomies. (slow)
2. Store relationships in postmeta. (very slow if you ever need to use that in a join statement)
3. Create your own post2post table.

Answer 2

Hi @m3tsys:

First, you might find this trac ticket instructive.

That said, the best solution I've found this far is ZigConnect Plugin:

• http://www.zigpress.com/wordpress/plugins/zigconnect/

Hope this help.

Answer 3

You can create relationships between custom post types with the plugin Sub Posts, price: $ 19.99. With this plugin you're done in minutes, from creating the relationships to displaying them in widgets or shortcodes.