It works just the same like a regular textarea with the exception of the data being escaped so when you call for the saved data just make sure to decode the html entities using html_entity_decode here is a very simple demo class, take a look at how the field is created. if (!class_exists(‘wp_editor_meta_box’)){ class wp_editor_meta_box{ … Read more
attachment_fields_to_save is still called. Just tried out this on my wordpress 3.5. installation and the following code killed wordpress when saving an image. add_filter(‘attachment_fields_to_save’, function() { die(‘attachment_fields_to_save’); });
The 10 is the priority (relative to other added actions) and the 2 is simply the number of arguments that my_save_post() will accept. See the codex.
Short of doing some jQuery validation, I think the only option is wp_die(). add_action( ‘save_post’, array( $this, ‘save_custom_items_data’ ), 10, 2 ); public function save_custom_items_data( $post_id, $post ) { if( count( $related_items ) > 5 ) { wp_die( ‘Error, 5 items max.’, ‘Error’, array( ‘response’ => 500, ‘back_link’ => true ) ); } else update_post_meta( … Read more
It comes from wp_insert_post(), where do_action() is called with two additional parameters: do_action(‘save_post’, $post_ID, $post); So it is not you who adds the parameters, it is WordPress. If you register your callback with the fourth parameter set to 2 … add_action( ‘save_post’, ‘mytestfunc’, 10, 2 ); … you will even get the complete $post object: … Read more
Separate the allowed values in a function: function get_allowed_values() { return array(‘one’, ‘two’, ‘three’); } In your metabox: foreach ( get_allowed_values() as $item) {} In your validation handler: if ( isset( $_POST[‘select_meta’] ) and in_array( $_POST[‘select_meta’], get_allowed_values() ) )
I tested your code and this ended up working for me: case ‘multiselect’: echo ‘<select name=”‘.$field[‘id’].'” id=”‘.$field[‘id’].'”>’; foreach ($field[‘options’] as $option) { echo ‘<option’, $meta == $option[‘value’] ? ‘ selected=”selected”‘ : ”, ‘ value=”‘.$option[‘value’].'”>’.$option[‘label’].'</option>’; } echo ‘</select><br /><span class=”description”>’.$field[‘desc’].'</span>’; break; For the Field Array I just added another option with a blank value and a … Read more
I notice a couple of things. First, your callback uses two parameters but you don’t ask for the second parameter when you hook it in. This: add_action( ‘save_post’, ‘kasparibi_left_menu_meta_save’ ); Should be: add_action( ‘save_post’, ‘kasparibi_left_menu_meta_save’ ,1 ,2 ); But, on the other hand, I don’t see where you use that parameter at all. Maybe I … Read more
In the save_post hook, When you are saving your post`s meta, Check initially for the required fields. If it contains no value, You can straight away redirect user to the admin referrer with an appropriate error message. You can also go for HTML5 required validation. That will be more efficient. <input type=”text” required>
The save_post hook is the only one you need, also, your callback function is missing a parameter, check this example: /** * Save post metadata when a post is saved. * * @param int $post_id The ID of the post. */ function save_book_meta( $post_id ) { /* * In production code, $slug should be set … Read more