bbPress.org

a topic’s forum is simply its post_parent

so your topic has a post_id and your forum has a post_id

so

// Update topic (post) 1234  forum (post) 321
  $my_post = array(
      'ID'           => 1234,
      'post_parent'   => 321,
       );

// Update the post into the database
  wp_update_post( $my_post );

the plugin says that you can

◾Assign parent post for generated post (Drop Down field only)

I haven’t used this plugin, so can’t comment further !!

Forums and Topics are totally separate custom post types, correct?

Yes.

I am reticent to start delving into this plugin – there are hundreds of thousand of plugins in wordpress and I only go into those that are specifically bbpress and then only a few of those – it can take a day easily to look at and understand a plugins code 🙂

There is a hook in topic creation that you could use

The following code is untested, but you could put this in your functions file. You must be able to edit that file outside of wordpress (ie NOT using dashboard>appearance>editor) in case it errors so you can amend it.

add_action( 'bbp_new_topic_pre_extras', 'new_topic_id', 10, 1 );

function new_topic_id ($forum_id=0) {
	if (empty ($forum_id)) $forum_id  = 31086 ;
	return $forum_id ;
}

This will put any topic that doesn’t have a forum into that forum.

it may well be that my code needs debugging, but I have stacks of work os – so very limited in helping you 🙂

did you try the gravity hook ?

ok, I can’t see any reason why that should not work

Can you contact me via my website

http://www.rewweb.co.uk

ok, just posting for anyone searching in future

THIS IS A WORKING VERSION

This code allows a standard gravity form lets it be saved as a gravity forum, but on saving also creates a new topic form for a specific forum

add_action( 'gform_after_submission', 'set_post_content', 10, 2 );

function set_post_content( $entry, $form ) {
	//set the forum ID that the topic will be saved to
	$forum_ID = '31086' ;
	
	if (!function_exists('bbp_insert_topic')) {
            require_once '/includes/topics/functions.php';
        }
		
		//getting post
		$post_form = get_post($entry['post_id']) ;
		$title = $post_form->post_title;
		$content = $post_form->post_content;

        // The topic data.
        $topic_data = array(
        'post_parent'       => $forum_ID, // forum ID of Projects  hard coded
        'post_status'       => bbp_get_public_status_id(),   // Subscribed users can see this
        'post_content'      => $content,
        'post_title'        => $title,
        'comment_status'    => 'open',
        'menu_order'        => 0
        );

        // The topic meta.
        $topic_meta = array(
        'forum_id'    =>  $forum_ID,
        'reply_count' => 0
		);

        $post_id = bbp_insert_topic($topic_data, $topic_meta);
           
}

to only have it for a specified form, you add the form id

eg

add_action( 'gform_after_submission_5', 'set_post_content', 10, 2 );

will make it fire only for gravity form ID 5

yes, it makes a gravity post and a topic post.

You could code to remove the latter as part of this function by adding further code, but in all honesty I wouldn’t worry, you’d need to be creating thousands of topics a month to make an impact on performance

Here is an image of what I’m talking about.

It’s leaving the post that isn’t attached to a forum there.

https://ibb.co/hzOsVH

Does anyone know how to

1. Take the forum list (not the topics) and have them put into a drop down or filtered by one thing or another?
2. To connect what is selected in the drop down and post the topic in that forum?

Thanks in advance!