BuddyPress.org

Nope. The hook does work, because profiler says the function is called later now, but the function still doesn’t seem to exist and throws the undefined function exception.

Also, other plugins do as well including gears which is used by theme authors such as myself for allowing users to easily add elements to a website from buddypress.

Hi Slava,

I tested that code and got no visible effect, but I think we’re in the right territory here.
I explored both of these functions:

bp_group_is_member()
groups_is_user_member()

It helped me realize that the two specific problems I wanted to solve were as follows:
– Users can’t create topics in a BuddyPress group’s forum unless they join the group
– Users can’t reply to topic in a BuddyPress group’s forum unless they join the group

So I started on the page template itself (form-topic.php).
Before displaying the “Create a topic” form, the template does a check to see if the user is allowed to create topics:
if ( bbp_current_user_can_access_create_topic_form() ) : ?
This was coming back as false, so I checked through each possible path through the function.

Here’s the whole function for quick reference:

function bbp_current_user_can_access_create_topic_form() {

	// Users need to earn access
	$retval = false;

	// Always allow keymasters
	if ( bbp_is_user_keymaster() ) {
		$retval = true;

	// Looking at a single forum & forum is open
	} elseif ( ( bbp_is_single_forum() || is_page() || is_single() ) && bbp_is_forum_open() ) {
		$retval = bbp_current_user_can_publish_topics();

	// User can edit this topic
	} elseif ( bbp_is_topic_edit() ) {
		$retval = current_user_can( 'edit_topic', bbp_get_topic_id() );
	}

	// Allow access to be filtered
	return (bool) apply_filters( 'bbp_current_user_can_access_create_topic_form', (bool) $retval );
}

Every single path through that function was returning true.
If I removed the filter and replaced it with a hard-coded true as follows…
return (bool) true;
…then the user would have access to the group’s forum without joining the group.

That told me that something in BuddyPress was filtering the result of this function. It was checking whether the user was a member of the group, and if not, was forcing bbp_current_user_can_access_create_topic_form() to return 0.

I couldn’t find the portion of BuddyPress that was filtering the result, unfortunately.

I have a working solution now, but it’s not elegant. I created a plugin with two filters (one for creating topics, one for replying to topics). The content of those filters is identical to the original bbPress functions. Since the plugin is loaded last, it basically overrides whatever BuddyPress says and goes with the original functions instead.

Here it is:

/**************************************************
Part 1: Allow users to create topics
Allow anyone to create a topic in any forum, even if that forum is inside a group the user hasn't joined.
If the group is hidden (e.g. "Management"), they still won't have access because that check is done first.
***************************************************/
// define the bbp_current_user_can_access_create_topic_form callback
function filter_bbp_current_user_can_access_create_topic_form( $retval ) {
	// Users need to earn access
	$retval = false;

	// Always allow keymasters
	if ( bbp_is_user_keymaster() ) {
		$retval = true;

	// Looking at a single forum & forum is open
	} elseif ( ( bbp_is_single_forum() || is_page() || is_single() ) && bbp_is_forum_open() ) {
		$retval = bbp_current_user_can_publish_topics();

	// User can edit this topic
	} elseif ( bbp_is_topic_edit() ) {
		$retval = current_user_can( 'edit_topic', bbp_get_topic_id() );
	}
return (bool) $retval;
};

// add the filter
add_filter( 'bbp_current_user_can_access_create_topic_form', 'filter_bbp_current_user_can_access_create_topic_form', 999, 1 );

/**************************************************
Part 2: Reply to comments
Allow anyone to reply to a comment in any forum, even if that forum is inside a group the user hasn't joined.
If the group is hidden (e.g. "Management"), they still won't have access because that check is done first.
***************************************************/
function filter_bbp_current_user_can_access_create_reply_form( $retval ) {

	// Users need to earn access
	$retval = false;

	// Always allow keymasters
	if ( bbp_is_user_keymaster() ) {
		$retval = true;

	// Looking at a single topic, topic is open, and forum is open
	} elseif ( ( bbp_is_single_topic() || is_page() || is_single() ) && bbp_is_topic_open() && bbp_is_forum_open() ) {
		$retval = bbp_current_user_can_publish_replies();

	// User can edit this topic
	} elseif ( bbp_is_reply_edit() ) {
		$retval = current_user_can( 'edit_reply', bbp_get_reply_id() );
	}

return (bool) $retval;
};
// add the filter
add_filter( 'bbp_current_user_can_access_create_reply_form', 'filter_bbp_current_user_can_access_create_reply_form', 999, 1 );

If I can find where BuddyPress filters bbp_current_user_can_access_create_topic_form() and bbp_current_user_can_access_create_reply_form(), I’ll write a more elegant plugin.

Could this be the same thing?

https://buddypress.trac.wordpress.org/ticket/7307

Hi @danbp,

Thank you! I’ve applied the fix and still experiencing the same problem.

I’ve only had a few minutes this morning, but is it possible the deprecated 2.1.php file is not loading?

– Placing a die(); statement in the 2.1.php file does nothing.
– In class-buddypress.php if move the
require( $this->plugin_dir . 'bp-core/deprecated/2.1.php' );
outside of the
if ( ! bp_get_option( '_bp_ignore_deprecated_code', ! $this->load_deprecated ) ) { statement the die() works, and removing die() the create site functionality returns

– Also, if I place the called bp_blogs_get_subdomain_base() function into class-buddypress.php it works

Is BuddyPress comfortable with php 7.1?

Yes, but it started as soon as I activated buddypress, before I updated to 2.8 today. Still see the errors. I disabled the learndash integration plugin and now it seems to be working ok. I would like to have the integration though of course.

I get this error:
Fatal error: Uncaught Error: [] operator not supported for strings in /***/**/**/**/chirri.dk/httpd.www/try/wp-content/plugins/buddypress/bp-activity/classes/class-bp-activity-component.php:281 Stack trace: #0 /***/**/**/**/chirri.dk/httpd.www/try/wp-includes/class-wp-hook.php(298): BP_Activity_Component->setup_admin_bar(”) #1 /***/**/**/**/chirri.dk/httpd.www/try/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(NULL, Array) #2 /***/**/**/**/chirri.dk/httpd.www/try/wp-includes/plugin.php(453): WP_Hook->do_action(Array) #3 /***/**/**/**/chirri.dk/httpd.www/try/wp-content/plugins/buddypress/bp-core/bp-core-dependency.php(143): do_action(‘bp_setup_admin_…’) #4 /***/**/**/**/chirri.dk/httpd.www/try/wp-includes/class-wp-hook.php(298): bp_setup_admin_bar(Object(WP_Admin_Bar)) #5 /***/**/**/**/chirri.dk/httpd.www/try/wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(NULL, Array) #6 /***/**/**/**/chirri.dk/httpd.www/try/wp-includes/plugin.php(515): WP_Hook->do_action(Array) #7 /custom in /***/**/**/**/chirri.dk/httpd.www/try/wp-content/plugins/buddypress/bp-activity/classes/class-bp-activity-component.php on line 281

Mod Edit: Server paths obscured – best not to reveal your server paths on a public forum.