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How to query posts which a meta key does not exist or is ...

    Apr 06, 2017 · Because the above method will failed if a post hasn’t meta_key of ‘community_job’. 2. The second way, we just need update the pre_get_posts filter to query all posts which a meta key does not exist or is false. function waytwowp_filter_by_custom_fields($query) {

Query posts with a meta key of post ID ... - WordPress.org

    SELECT SQL_CALC_FOUND_ROWS wp_posts.ID FROM wp_posts LEFT JOIN wp_postmeta AS mt ON ( wp_posts.ID = mt.post_id AND mt.meta_key ='_shop_id' ) LEFT JOIN wp_posts AS p2 ON ( mt.meta_key ='_shop_id' AND mt.meta_value = p2.ID ) WHERE 1=1 AND ( mt.meta_key IS NOT NULL AND p2.ID IS NULL ) AND wp_posts.post_type ='book' AND ((wp_posts.post_status <> 'trash' AND …

WP_Meta_Query's 'compare_key' does not support 'NOT EXISTS ...

    WP_Meta_Query's 'compare_key' does not support 'NOT EXISTS' when used with WP_User_Query. Reported by: gikaragia: Owned by: ... INNER JOIN wp_usermeta AS mt1 ON ( wp_users.ID = mt1.user_id ) WHERE 1=1 AND ( ( wp_usermeta.meta_key ='learner_calculated_version' AND wp_usermeta.meta_value !='3' ) OR NOT EXISTS (SELECT 1 FROM wp_usermeta mt2 ...

mysql - Wordpress if usermeta meta_key exists do this ...

    This parameter has no effect if $key is left blank. Default: false" - codex.wordpress.org/Function_Reference/get_user_meta. If the meta value doesn't exist it will either return an empty string or empty array based on this argument. – claytronicon Mar 14 '18 at 20:24

NOT EXISTS meta query with OR relation - WordPress Trac

    When using meta_query in a WP_Query, passing NOT EXISTS or '' to compare should not require value to be set. The resulting SQL should then produce the appropriate OR clause for existence of non-existence after passing the query to the $key_only_queries stack internally. Adds unit tests. Props chrisguitarguy, for the original patch. Fixes #23268.

WP_Meta_Query Class WordPress Developer Resources

    Possible values are ‘=’, ‘!=’, ‘>’, ‘>=’, ‘<‘, ‘<=’, ‘LIKE’, ‘NOT LIKE’, ‘IN’, ‘NOT IN’, ‘BETWEEN’, ‘NOT BETWEEN’, ‘EXISTS’ (only in WP >= 3.5), and ‘NOT EXISTS’ (also only in WP >= 3.5). Values ‘REGEXP’, ‘NOT REGEXP’ and ‘RLIKE’ were added in WordPress 3.7. Default value is ‘=’. type ( string) – Custom field type.

Ultimate Guide to meta_query of WordPress WP_Query

    NOT EXISTS (WordPress >= 3.5) – if a given meta key doesn’t exist at all REGEXP (WordPress >= 3.7) – it allows you to compare meta values with regular expression, example: $args = array('meta_query' => array(array('key' => 'misha_key', 'value' => '^ [0-9]*$', // "misha_key" …

I am trying to order posts using a few customs meta_key ...

    views (number of views) Both key, may or may not exists but if it doesn’t exists the post still needs to show up. Here is the code : add_action ('pre_get_posts', 'filter_by_popularity'); if (!function_exists ("filter_by_popularity")) { function filter_by_popularity ($query) { if (is_home () && get_option ("pq_filtre_pageaccueil")=="hotandhall") { if ($query->is_main_query ()) { $query->set ('meta_key', "is_featured"); $query->set ('meta_key', "views"); // $query->set ('meta_key', array ...

Working with the WordPress user meta query - Users Insights

    Aug 27, 2018 · ‘IN’ / ‘NOT IN’ – Allows specifying multiple values to match ‘BETWEEN’ / ‘NOT BETWEEN’ – Allows matching based on a range of values. For example, you can search for users with age between 20 and 30 ‘EXISTS’ / ‘NOT EXISTS’ – Just check if the meta value is set at all

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