custom-field

Query to sort a list by meta key first (if it exists), and show remaining posts without meta key ordered by title

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I’m working on a custom taxonomy term page template where we want the items that are connected to the term sorted by a publication date (custom date field) – and if there are multiple items on the same day (formatted like YYYY-MM-DD) to then sort those by title, and finally sort by title if the … Read more

Add validation and error handling when saving custom fields?

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I have a function that defines a custom field on a post type. Say the field is “subhead”. When the post is saved, I want to do some validation on the input, and display an error message on the post edit screen if necessary. Something like: // Handle post updating function wpse_update_post_custom_values($post_id, $post) { // … Read more

How to update custom fields using the wp_insert_post() function?

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The WordPress function is used for submitting data programatically. Standard fields to submit to incude the content, excerpt, title, date and many more. What there is no documentation for is how to submit to a custom field. I know it is possible with the add_post_meta($post_id, $meta_key, $meta_value, $unique); function. But, how to include that into … Read more

Advanced search form with filters for custom taxonomies and custom fields

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I’d like to build an advanced search form for a specific custom post type, having filters for the custom post types custom fields, custom taxonomies, and for a separate custom post types properties (fields and taxonomies) which will be links to the first post type using a custom relationship field. I’ve recently started off with … Read more

Can I exclude a post by meta key using pre_get_posts function?

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I see many people prefer to use pre_get_posts hook instead of query_posts. The code below works and shows all posts which have meta key “featured” function show_featured_posts ( $query ) { if ( $query->is_main_query() ) { $query->set( ‘meta_key’, ‘featured’ ); $query->set( ‘meta_value’, ‘yes’ ); } } add_action( ‘pre_get_posts’, ‘show_featured_posts’ ); But I want the posts … Read more

Using meta query (‘meta_query’) with a search query (‘s’)

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Trying to build a search that not only searches the defaults (title, content etc) but also a specific custom field. My current query: $args = array( ‘post_type’ => ‘post’, ‘s’ => $query, ‘meta_query’ => array( array( ‘key’ => ‘speel’, ‘value’ => $query, ‘compare’ => ‘LIKE’ ) ) ); $search = new WP_Query( $args ) … … Read more

what is the correct way to compare dates in a WP query_posts meta_query

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I have a query_posts call in a WP template. Through the use of the More Fields Plugin I can give the site admin the ability to create an event (custom post type) and then enter a date which is formatted: YYYY/mm/dd. The main question is; what value should I pass to the value option in … Read more

Adding Fields to the Category, Tag and Custom Taxonomy Edit Screen in the WordPress Admin?

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The question is “How do I add one or more fields to the Category, Tag and Custom Taxonomy Edit Screen in the WordPress Admin?” This question was asked on the wp-hackers list August 1st 2010 and I offered a solution later that day. The original asker discussed the issue again today (Aug 21) which reminded … Read more

How to filter post listing (in WP dashboard posts listing) using a custom field (search functionality)?

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Despite the fact I googled a lot, I’ve not found the answer to a very simple question : I have some posts with a custom field (i.e. supplier_name). I would like to be able to search and filter my posts according to this custom field. In other words, in the admin posts listing, I would … Read more