BuddyPress.org

I believe the above doesn’t work correctly because I am adding the new content as a subnav which by default tried to inherit the parent template (correct me if I’m wrong).

Here is what I came up with (this all goes in functions.php), it still needs fine tuning and testing (for example I broke pagination and commenting):

function my_test_setup_nav() {
        global $bp;
       
        $parent_slug = 'wall';
        $child_slug = 'all';
//name, slug, screen, position, default subnav
        bp_core_new_nav_item( array( 'name' => __( 'test' ), 'slug' => $parent_slug, 'screen_function' => 'my_profile_page_function_to_show_screen', 'position' => 40, 'default_subnav_slug' => 'test_sub' ) );
}

function my_profile_page_function_to_show_screen() {
	//add title and content here - last is to call the members plugin.php template
	add_action( 'bp_template_title', 'my_profile_page_function_to_show_screen_title' );
	add_action( 'bp_template_content', 'my_profile_page_function_to_show_screen_content' );
	bp_core_load_template( apply_filters( 'bp_core_template_plugin', 'members/single/plugins' ) );
}
function my_profile_page_function_to_show_screen_title() {
	echo 'something';
}

function my_profile_page_function_to_show_screen_content() {
	global $activities_template;

	$personal_activites = array();
	$friends_activites = array();
	$group_activites = array();
	
	//Get friends Loop
	do_action( 'bp_before_activity_loop' );
	if ( bp_has_activities( bp_ajax_querystring( 'activity' )."&scope=friends") ) :
		$friends_activites = $activities_template->activities;
	endif;
	do_action( 'bp_after_activity_loop' ); 
	
	//Get personal Loop
	do_action( 'bp_before_activity_loop' );
	if ( bp_has_activities( bp_ajax_querystring( 'activity' )."&scope=just-me") ) :
		$personal_activites = $activities_template->activities; 
	endif;
	do_action( 'bp_after_activity_loop' ); 
	
	//Get groups Loop
	do_action( 'bp_before_activity_loop' );
	if ( bp_has_activities( bp_ajax_querystring( 'activity' )."&scope=groups") ) :
		$group_activites = $activities_template->activities; 
	endif;
	do_action( 'bp_after_activity_loop' ); 
	
	do_action( 'bp_before_member_activity_post_form' );
		bp_get_template_part( 'activity/post-form' );
	do_action( 'bp_after_member_activity_post_form' );	
	
	$activities_template->activities = array_merge($personal_activites,$group_activites,$friends_activites);
	quickSort( $activities_template->activities );

?>
	<?php do_action( 'bp_before_activity_loop' ); ?>

		<?php /* Show pagination if JS is not enabled, since the "Load More" link will do nothing */ ?>
		<noscript>
			<div class="pagination">
				<div class="pag-count"><?php bp_activity_pagination_count(); ?></div>
				<div class="pagination-links"><?php bp_activity_pagination_links(); ?></div>
			</div>
		</noscript>

		<?php if ( empty( $_POST['page'] ) ) : ?>

			<ul id="activity-stream" class="activity-list item-list">

		<?php endif; ?>

		<?php while ( bp_activities() ) : bp_the_activity(); ?>

			<?php bp_get_template_part( 'activity/entry' ); ?>

		<?php endwhile; ?>

		<?php if ( bp_activity_has_more_items() ) : ?>

			<li class="load-more">
				<a href="#more"><?php _e( 'Load More', 'buddypress' ); ?></a>
			</li>

		<?php endif; ?>

		<?php if ( empty( $_POST['page'] ) ) : ?>

			</ul>

		<?php endif; ?>

	<?php do_action( 'bp_after_activity_loop' ); ?>

	<form action="" name="activity-loop-form" id="activity-loop-form" method="post">

		<?php wp_nonce_field( 'activity_filter', '_wpnonce_activity_filter' ); ?>

	</form>
<?php	
}     

add_action( 'bp_setup_nav', 'my_test_setup_nav' );

// Non-recurive Quicksort for an array of Person objects
// adapted from http://www.algorithmist.com/index.php/Quicksort_non-recursive.php
function quickSort( &$array )
{
	$cur = 1;
	$stack[1]['l'] = 0;
	$stack[1]['r'] = count($array)-1;

	do{
		$l = $stack[$cur]['l'];
		$r = $stack[$cur]['r'];
		$cur--;

		do{
			$i = $l;
			$j = $r;
			$tmp = $array[(int)( ($l+$r)/2 )];

			// partion the array in two parts.
			// left from $tmp are with smaller values,
			// right from $tmp are with bigger ones
			do{
				while( strtotime($array[$i]->date_recorded) > strtotime($tmp->date_recorded) )
					$i++;

				while( strtotime($tmp->date_recorded) > strtotime($array[$j]->date_recorded) )
					$j--;

				// swap elements from the two sides
				if( $i <= $j){
					$w = $array[$i];
					$array[$i] = $array[$j];
					$array[$j] = $w;

					$i++;
					$j--;
				}

			}while( $i <= $j );

			if( $i < $r ){
				$cur++;
				$stack[$cur]['l'] = $i;
				$stack[$cur]['r'] = $r;
			}
			$r = $j;

		}while( $l < $r );

	}while( $cur != 0 );

}

I’m sure there is a more elegant and seamless way to do it, and I will try to figure out exactly what that is. I’ll probably end up making templates for this to try and have cleaner code and stop the ajax bugs I created.

But for now, congratulations, you now have an aggregate news feed.