Elgg / Elgg

mod/groups/views/default/resources/groups/activity.php

<?php

$guid = elgg_extract('guid', $vars);
elgg_entity_gatekeeper($guid, 'group');

elgg_set_page_owner_guid($guid);

elgg_group_gatekeeper();

$group = get_entity($guid);

if (elgg_get_plugin_setting('allow_activity', 'groups') === 'no'
		|| $group->activity_enable !== 'yes') {
	forward($group->getURL(), '404');
}

$title = elgg_echo('groups:activity');

elgg_push_breadcrumb($group->name, $group->getURL());
elgg_push_breadcrumb($title);

$db_prefix = elgg_get_config('dbprefix');

$options = [
	'joins' => [
		"JOIN {$db_prefix}entities e1 ON e1.guid = rv.object_guid",
		"LEFT JOIN {$db_prefix}entities e2 ON e2.guid = rv.target_guid",
	],
	'wheres' => [
		"(e1.container_guid = $group->guid OR e2.container_guid = $group->guid)",
	],
	'no_results' => elgg_echo('groups:activity:none'),
];

$type = preg_replace('[\W]', '', get_input('type', 'all'));
$subtype = preg_replace('[\W]', '', get_input('subtype', ''));
if ($subtype) {
	$selector = "type=$type&subtype=$subtype";
} else {
	$selector = "type=$type";
}

if ($type != 'all') {

This code seems to be duplicated across your project.

	$options['type'] = $type;
	if ($subtype) {
		$options['subtype'] = $subtype;
	}
}

$content = elgg_view('core/river/filter', ['selector' => $selector]);
$content .= elgg_list_river($options);

$body = elgg_view_layout('content', [
	'content' => $content,
	'title' => $title,
	'filter' => '',
	'class' => 'elgg-river-layout',
]);

echo elgg_view_page($title, $body);