Custom SQL query multiple taxonomies
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I have a site with custom roles, and custom taxonomies. I’m making the advanced search, where custom posts can be filtered by roles and taxonomies.
To accomplish this, I’m using my own custom SQL query, which works fine with the roles, and one taxonomy, but I’m having a hard time getting it to work with a second taxonomy (I get no results). Here’s the code I’m generating (with some sample values coming in from the form):
SELECT DISTINCT p.* FROM wp_posts p LEFT JOIN wp_usermeta um ON p.post_author = um.user_id LEFT JOIN wp_term_relationships txr ON p.ID = txr.object_id LEFT JOIN wp_term_taxonomy tx ON txr.term_taxonomy_id = tx.term_taxonomy_id LEFT JOIN wp_terms trm ON tx.term_id = trm.term_id LEFT JOIN wp_terms trk ON tx.term_id = trk.term_id WHERE (um.meta_key = 'wp_capabilities' AND (um.meta_value LIKE '%student%' OR um.meta_value LIKE '%instructor%' )) AND (tx.taxonomy= 'mediums' AND ( trm.name LIKE '%acrylic%' OR trm.name LIKE '%oil%' )) AND ( tx.taxonomy= 'keywords' AND ( trk.name LIKE '%landscape%' OR trk.name LIKE '%test%')) AND p.post_status = 'publish' AND p.post_type = 'gallery' GROUP BY p.ID ORDER BY p.post_date DESC
When I input this directly into PHPMyAdmin, I get no errors, but the thing just hangs (“Loading” message).
What am I doing wrong?
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