custom post type search by reference id

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I have a custom content type of tab_content with a relationship to a page.

In my current script I have the id of a page and I want to do a query that will list all the children of type tab_content that have the relationship of a page with the specified id.

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All I have so far is: 

new WP_Query(array('post_type' => 'tab_content'));

How do I tell the query that the custom field parent needs to be something like 80? Thanks

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3 comments

  2. I’m actually using a relation from the custom post type plugin.

    I had to reference a custom field which gave me the whole reference post.

    get_custom_field('tab_content_relationship'); and viola.

  3. The only way to do what you want with WP_Query is to use two queries:

    1. Get the list of IDs of tab_content posts associated with a page.
    2. Query for children of those IDs.

    You could use get_posts() for the first query if you want, but that’s all I can think of.