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Post meta is a data set containing additional core as well as custom post information.

4
votes
A quick google search would have directed you to this page: http://codex.wordpress.org/Class_Reference/WP_Query#Custom_Field_Parameters
answered Aug 9 '11 by scribu
3
votes
'meta_query' is what you're looking for: http://scribu.net/wordpress/advanced-metadata-queries.html
answered Apr 20 '11 by scribu
3
votes
This is fixed in WP 3.2-alpha: http://core.trac.wordpress.org/ticket/15292
answered Mar 3 '11 by scribu
2
votes
First of all, you should look into using WP_Query for this: http://scribu.net/wordpress/advanced-metadata-queries.html Secondly, to see the results, just do a var_dump() before the return: echo '<p …
answered May 30 '11 by scribu
3
votes
You only need to define two post types: 'piece' and 'person' and a connection field 'role'. See https://github.com/scribu/wp-posts-to-posts/wiki/Connection-information
answered Oct 26 '11 by scribu
6
votes
Just call p2p_connect( $id_of_post_type_a, $id_of_post_type_b ); in the form handling code.
answered Jul 24 '11 by scribu
4
votes
That's because 'meta_key' and 'meta_value' are not public query vars. In other words, you can't use them in URLs directly, nor should you. Instead, register a specific query var, like so: function r …
answered Jul 7 '11 by scribu
6
votes
The problem is that 'post_parent' is not a public query var, i.e. you can use it only from code. To be able to use it from the URL, you just need to add these lines of code: function make_post_paren …
answered Sep 29 '11 by scribu
2
votes
Lists of items are already implemented in WP core. They're called custom menus. They are stored as a custom post type + taxonomy. UPDATE: I had assumed that your list items would be other posts, but …
answered Jun 26 '11 by scribu
1
vote
It looks like your 'orderby' parameter is completely ignored. Try setting 'suppress_filters' => true to make sure there's no interference.
answered Mar 26 '11 by scribu