Integrating Posts 2 Posts

I'm trying to integrate Posts 2 Posts into GravityForms.

I have two registered CPTs, CPT1 and CPT2. I have them set as mutual connections so whenever I add a connection between CPT1 -> CPT2, it's automatically CPT2 -> CPT1.

I have a form built so when a submission is made, it creates a new Post under CPT1.

I'm trying to figure out how to add a connection box, so when I'm submitting a Post by CPT1, I can select a Post under CPT2 so that it's automatically connected between CPT1 <-> CPT2 once the submission is approved and is published.

I tried looking at examples of how to create custom boxes inside the form creator, but couldn't figure it out yet.

Any direction would be GREATLY appreciated :)

Here is the documentation on Posts 2 Posts: https://github.com/scribu/wp-posts-to-posts/wiki

https://github.com/scribu/wp-posts-to-posts/wiki/Custom-admin-boxes

That talks about how to add admin boxes to the Post when editing the CPT post.

Can you provide even examples of building my own field? I may be able to get this done myself, I just couldn't find any good examples of how to create my own field.

I tried the latter as well, gform_field_input and as you described, it's not very flexible. I couldn't get it to work.

I'm a little surprised there's so little documentation around creating a basic custom field..having a heck of a time trying to find a basic example that is straight forward to follow.

Any other docs you can point me to that are a little more thorough, but still basic enough to follow?

But getting back to my point of Posts 2 Posts.

I'm trying to add a custom admin box to an input field. This is the example code they provide to build your own admin box.

Any direction how I would go about implementing this into the code beneath it?

add_action( 'init', 'init_my_connection_type', 100 );
add_action( 'add_meta_boxes', 'register_my_meta_box' );

function init_my_connection_type() {
	p2p_register_connection_type( array(
		'name' => 'posts_to_pages',
		'from' => 'post',
		'to' => 'page',
		'admin_box' => false
	) );
}

function register_my_meta_box() {
	add_meta_box( 'my-box', 'My Connected Pages', 'render_my_meta_box', 'post' );
}

function render_my_meta_box( $post ) {
	echo 'This is my box.';

	$ctype = p2p_type( 'posts_to_pages' )->get_connected( $post );
?>

<ul>
<?php while ( $connected->have_posts() ) : $connected->the_post(); ?>
	<li><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></li>
<?php endwhile; ?>
</ul>
<?php
}

and..

add_action( "gform_field_input" , "wps_tos_field_input", 10, 5 );
function wps_tos_field_input ( $input, $field, $value, $lead_id, $form_id ){

    if ( $field["type"] == "c_cpt" ) {
		$max_chars = "";
		if(!IS_ADMIN && !empty($field["maxLength"]) && is_numeric($field["maxLength"]))
			$max_chars = self::get_counter_script($form_id, $field_id, $field["maxLength"]);

		$input_name = $form_id .'_' . $field["id"];
		$tabindex = GFCommon::get_tabindex();
		$css = isset( $field['cssClass'] ) ? $field['cssClass'] : '';
		return sprintf("<div class='ginput_container'><textarea readonly name='input_%s' id='%s' class='textarea gform_tos %s' $tabindex rows='10' cols='50'>%s</textarea></div>{$max_chars}", $field["id"], 'ccpt-'.$field['id'] , $field["type"] . ' ' . esc_attr( $css ) . ' ' . $field['size'] , esc_html($value));

    }

    return $input;
}

Thanks for the response Sascha.

The way that Posts 2 Posts works though, is it lets you start typing a Post and it will auto-complete, retrieving data from the database via AJAX. I can't pre-populate everything together for Posts 2 Posts to work, as far as I know.