Prepopulate relationship field with current post id

Hi,

The frontend form helps you to create new posts on the front end. The post is not created so where we can get the relationship to repopulate? Does that mean you want to set the relationship on the backend and don't allow the user to set the relationship on the frontend?

Hi,

So I think this case is related to the topic https://support.metabox.io/topic/only-showing-certain-custom-fields-on-the-frontend-submission/

You can remove the meta box on the frontend and show it on the backend only.

Hi,

Thanks for the additional information.

So you can use the action rwmb_{$field_id}_after_save_field to update the field value after submitting/updating a post. Refer to this topic
https://support.metabox.io/topic/using-custom-meta-fields-to-create-cpt-title/

And documentations
https://docs.metabox.io/actions/#rwmb_after_save_field
https://docs.metabox.io/rwmb-set-meta/

Hi,

Sorry, it looks like the field post. You can use the public API of Relationships to add the relationship to a post itself after submitting the post. Please read more on the documentation
https://docs.metabox.io/extensions/mb-relationships/#creating-connections-programmatically
https://docs.metabox.io/extensions/mb-frontend-submission/#form-actions

For example:

//Register relationship
add_action( 'mb_relationships_init', function() {
    MB_Relationships_API::register( [
        'id'         => 'posts_to_posts',
        'from'       => 'post',
        'to'         => 'post',
        'reciprocal' => true,
    ] );
} );

//Add a connection to the post itself after submitting the post
add_action( 'rwmb_frontend_after_process', function( $config, $post_id ) {
    MB_Relationships_API::add( $post_id, $post_id, 'posts_to_posts', $order_from = 1, $order_to = 1 );
}, 10, 2 );

Hi,

If you use the frontend hook like the example code, please use the variable $post_id to add the connection to the submitted post.

Add a connection to the post itself after submitting the post

Hi,

The problem is you want to execute the function add() after submitting the frontend form. So we can only use the variable $post_id to point to the post that is created. You can also see that the column from display the post ID created on your screenshot https://pasteimg.com/image/screenshot-2021-08-15-103629-am.c3PIn

The function get_queried_object_id() retrieves the ID of the current post when viewing, the function get_the_ID() retrieves the ID of the post in the loop so we should not use them in this hook.

https://developer.wordpress.org/reference/functions/get_the_id/
https://developer.wordpress.org/reference/functions/get_queried_object_id/

Hi,

I've tried many times to explain that the variable $post_id is pointing to the submitted post ID. So you can just replace $to with $post_id

Please check my code again

add_action( 'rwmb_frontend_after_process', function( $config, $post_id ) {
    MB_Relationships_API::add( $post_id, $post_id, 'posts_to_posts', $order_from = 1, $order_to = 1 );
}, 10, 2 );