/* Enable Divi Builder on all post types with an editor box */
function myprefix_add_post_types($post_types) {
	foreach(get_post_types() as $pt) {
		if (!in_array($pt, $post_types) and post_type_supports($pt, 'editor')) {
			$post_types[] = $pt;
		}
	} 
	return $post_types;
}
add_filter('et_builder_post_types', 'myprefix_add_post_types');

/* Add Divi Custom Post Settings box */
function myprefix_add_meta_boxes() {
	foreach(get_post_types() as $pt) {
		if (post_type_supports($pt, 'editor') and function_exists('et_single_settings_meta_box')) {
			add_meta_box('et_settings_meta_box', __('Divi Custom Post Settings', 'Divi'), 'et_single_settings_meta_box', $pt, 'side', 'high');
		}
	} 
}
add_action('add_meta_boxes', 'myprefix_add_meta_boxes');

/* Ensure Divi Builder appears in correct location */
function myprefix_admin_js() { 
	$s = get_current_screen();
	if(!empty($s->post_type) and $s->post_type!='page' and $s->post_type!='post') { 
?>
<script>
jQuery(function($){
	$('#et_pb_layout').insertAfter($('#et_pb_main_editor_wrap'));
});
</script>
<style>
#et_pb_layout { margin-top:20px; margin-bottom:0px }
</style>
<?php
	}
}
add_action('admin_head', 'myprefix_admin_js');

// Ensure that Divi Builder framework is loaded - required for some post types when using Divi Builder plugin
add_filter('et_divi_role_editor_page', 'myprefix_load_builder_on_all_page_types');
function myprefix_load_builder_on_all_page_types($page) { 
	return isset($_GET['page'])?$_GET['page']:$page; 
}