Relationship field performance

Hi, I'll start working on this from tomorrow. I've been busy updating the extensions. Hopefully can get it done next week.

I read the news, too. Thanks for sharing.

Hi,

I almost finish it. You can track the progress here: https://github.com/wpmetabox/meta-box/commits/ajax-post.

What I've done so far:

• Make it possible to use ajax for post field (which is used in relationships plugin) by adding 'ajax' => true to the field.
• Make pagination works in case you don't want to request all posts at once (via posts_per_page param in the query_args)
• Cache the ajax requests

I'm working on clone. If everything goes well, I can give you an example by the end of today.

Hi again,

I've done the relationships for post. Please follow this guide to use it:

• Download the latest dev version of MB Relationships on Github.
• Download the latest dev version of Meta Box for ajax post on Github

Now try it again and you'll see the ajax requests are sent when open the dropdown.

If you want to customize the ajax request, in your code to register relationships, use this code:

add_action( 'mb_relationships_init', function () {
    MB_Relationships_API::register( array(
        'id'   => 'users_to_posts',
        'from' => array(
            'object_type' => 'post',
            'meta_box'    => array(
                'title' => 'Manages',
            ),
            'field' => array(
                'ajax' => true, // Note this
                'query_args' => array(
                    'posts_per_page' => 10, // This is for pagination in Ajax
                ),
                'js_options' => array(
                    'minimumInputLength' => 1, // Send ajax requests when users enter at least 1 character
                ),
            ),
        ),
        'to'   => array(
            'object_type' => 'post',
            'post_type'   => 'page',
            'meta_box'    => array(
                'title'         => 'Managed By',
                'context'       => 'side',
                'empty_message' => 'No users',
            ),
            'field' => array(
                'ajax' => true, // Note this
                'query_args' => array(
                    'posts_per_page' => 10, // This is for pagination in Ajax
                ),
            ),
        ),
    ) );
} );

Some notes:

• Now in the relationship, you'll have an extra field settings, which you can pass full settings array for the field. It's similar to post, taxonomy or user field.
• Enable ajax for the dropdown by adding 'ajax' => true to the field
• If you just want to query only some posts via ajax (not all of posts at once), you can set posts_per_page parameter.

Currently, it works for posts only. I'll make it works for terms and users by tomorrow.