When adding additional fields to pages and posts, or to their own Custom Post Type ( CTP ), you must record an action to store this new data. The implementation of this procedure is basically always the same, changing only the fields and how to save, the extra data can reside in a 'custom field', or the post meta table, or on one or more tables personal. A skeleton useful is the following:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 | / * Join the hook * / , 'did_post_update' , 10 , 2 ) ; add_action ('save_post', 'did_post_update', 10, 2); $ID , $post ) { did_post_update function ($ id, $ post) { / / Local Variables / / Exclude negative values (and possibly characters) absint ( $ID ) ; $ ID = absint ($ id); / / Post type (CPT) get_post_type ( ) ; $ Post_type = get_post_type (); get_post_type_object ( $post_type ) ; Post_type_object get_post_type_object $ = ($ post_type); '' ; $ Capability =''; / / Exit if autosave defined ( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE === true ) { if ( defined ('DOING_AUTOSAVE') && DOING_AUTOSAVE === true) { return; } / / Exit if the post is not of our type ! in_array ( $post_type , array ( 'post_type_id' ) ) ) { if ( in_array ($ post_type, array ('post_type_id'))) { return; } / / Further control via the nonce WordPress isset ( $_POST [ 'nonce_id' ] ) && ! wp_verify_nonce ( $_POST [ 'nonce_id' ] , 'uniqid' ) ) { if ( isset ($ _POST ['nonce_id']) &&! wp_verify_nonce ($ _POST ['nonce_id'], 'uniqid')) { return; } / / We find the correct capability in relation to our post type isset ( $post_type_object -> cap -> edit_posts ) ) { if ( isset ($ post_type_object -> cap -> edit_posts)) { $post_type_object -> cap -> edit_posts ; $ Capability = $ post_type_object -> cap -> edit_posts; } / / Bye bye if we do not have the permissions ! current_user_can ( $capability ) ) { if (current_user_can ($ capability)) { return; } / ** * If we come here we can save our data * / |
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