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-rw-r--r--engine/lib/statistics.php121
1 files changed, 121 insertions, 0 deletions
diff --git a/engine/lib/statistics.php b/engine/lib/statistics.php
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+<?php
+/**
+ * Elgg statistics library.
+ *
+ * This file contains a number of functions for obtaining statistics about the running system.
+ * These statistics are mainly used by the administration pages, and is also where the basic
+ * views for statistics are added.
+ *
+ * @package Elgg.Core
+ * @subpackage Statistics
+ */
+
+/**
+ * Return an array reporting the number of various entities in the system.
+ *
+ * @param int $owner_guid Optional owner of the statistics
+ *
+ * @return array
+ */
+function get_entity_statistics($owner_guid = 0) {
+ global $CONFIG;
+
+ $entity_stats = array();
+ $owner_guid = (int)$owner_guid;
+
+ $query = "SELECT distinct e.type,s.subtype,e.subtype as subtype_id
+ from {$CONFIG->dbprefix}entities e left
+ join {$CONFIG->dbprefix}entity_subtypes s on e.subtype=s.id";
+
+ $owner_query = "";
+ if ($owner_guid) {
+ $query .= " where owner_guid=$owner_guid";
+ $owner_query = "and owner_guid=$owner_guid ";
+ }
+
+ // Get a list of major types
+
+ $types = get_data($query);
+ foreach ($types as $type) {
+ // assume there are subtypes for now
+ if (!is_array($entity_stats[$type->type])) {
+ $entity_stats[$type->type] = array();
+ }
+
+ $query = "SELECT count(*) as count
+ from {$CONFIG->dbprefix}entities where type='{$type->type}' $owner_query";
+
+ if ($type->subtype) {
+ $query .= " and subtype={$type->subtype_id}";
+ }
+
+ $subtype_cnt = get_data_row($query);
+
+ if ($type->subtype) {
+ $entity_stats[$type->type][$type->subtype] = $subtype_cnt->count;
+ } else {
+ $entity_stats[$type->type]['__base__'] = $subtype_cnt->count;
+ }
+ }
+
+ return $entity_stats;
+}
+
+/**
+ * Return the number of users registered in the system.
+ *
+ * @param bool $show_deactivated Count not enabled users?
+ *
+ * @return int
+ */
+function get_number_users($show_deactivated = false) {
+ global $CONFIG;
+
+ $access = "";
+
+ if (!$show_deactivated) {
+ $access = "and " . get_access_sql_suffix();
+ }
+
+ $query = "SELECT count(*) as count
+ from {$CONFIG->dbprefix}entities where type='user' $access";
+
+ $result = get_data_row($query);
+
+ if ($result) {
+ return $result->count;
+ }
+
+ return false;
+}
+
+/**
+ * Return a list of how many users are currently online, rendered as a view.
+ *
+ * @return string
+ */
+function get_online_users() {
+ $count = find_active_users(600, 10, 0, true);
+ $objects = find_active_users(600, 10);
+
+ if ($objects) {
+ return elgg_view_entity_list($objects, array(
+ 'count' => $count,
+ 'limit' => 10
+ ));
+ }
+}
+
+/**
+ * Initialise the statistics admin page.
+ *
+ * @return void
+ * @access private
+ */
+function statistics_init() {
+ elgg_extend_view('core/settings/statistics', 'core/settings/statistics/online');
+ elgg_extend_view('core/settings/statistics', 'core/settings/statistics/numentities');
+}
+
+/// Register init function
+elgg_register_event_handler('init', 'system', 'statistics_init');