I coded a plugin just for that and never got around to publish it : Usage: In the dropdown you have a list of all custom fields, so just select the field you want to filter by and click filter. if you want to filter to a specific value of a custom field then select … Read more
You can define the meta key for orderby parameter using the old method (I tested on WP 3.1.1)… query_posts( array( ‘post_type’ => ‘services’, ‘order’ => ‘ASC’, ‘meta_key’ => ‘some_key’, ‘orderby’ => ‘meta_value’, //or ‘meta_value_num’ ‘meta_query’ => array( array(‘key’ => ‘order_in_archive’, ‘value’ => ‘some_value’ ) ) ) );
This will add a custom field to the menu item edit. However, you will not see the custom field until you have saved the menu for the newly added menu item. When you first add an item, you will only see the standard fields. After save, the new field will be available also for edit. … Read more
I solved filtering the query by adding the join on the postmeta table and changing the where clause. tips on filtering the WHERE clause (often require regular expression search&replace) are here on codex: add_filter( ‘posts_join’, ‘segnalazioni_search_join’ ); function segnalazioni_search_join ( $join ) { global $pagenow, $wpdb; // I want the filter only when performing a … Read more
One possible approach would be to use one of the helper methods in the WPDB class to do a more refined meta based query. The caveat to using some of these functions however, is that you don’t usually get back a simple array of data and usually have to make needless references to object properties, … Read more
Simple to do, first create the dropdown with just the meta values you want and then catch the submit of the filter, just change POST_TYPE to the name of your post type and META_KEY to the name of your meta key: <?php /* Plugin Name: Admin Filter BY Custom Fields Plugin URI: http://en.bainternet.info Description: answer … Read more
For anyone who wants to know more about file uploading, here’s a quick primer covering the major topics and pain points. This is written with WordPress 3.0 on a Linux box in mind, and the code is just a basic overview to teach the concepts. I’m sure some folks here could offer advice for improvement … Read more
orderby should be meta_value_num, or meta_value, not the name of the key. See WP_Query orderby parameters.
You can see in the docs that you get the values by get_field(), so do something like this: $values = get_field( ‘field_name’ ); if ( $values ) { echo ‘A value is set’; } else { echo ‘A value is not set’; } Change field_name to your wanted field.