Elgg\Database\Plugins::generateEntities PHP Method

    function generateEntities()
    {
        $mod_dir = elgg_get_plugins_path();
        $db_prefix = elgg_get_config('dbprefix');
        // ignore access in case this is called with no admin logged in - needed for creating plugins perhaps?
        $old_ia = elgg_set_ignore_access(true);
        // show hidden entities so that we can enable them if appropriate
        $old_access = access_get_show_hidden_status();
        access_show_hidden_entities(true);
        $options = array('type' => 'object', 'subtype' => 'plugin', 'selects' => array('plugin_oe.*'), 'joins' => array("JOIN {$db_prefix}objects_entity plugin_oe on plugin_oe.guid = e.guid"), 'limit' => ELGG_ENTITIES_NO_VALUE);
        $known_plugins = elgg_get_entities_from_relationship($options);
        /* @var \ElggPlugin[] $known_plugins */
        if (!$known_plugins) {
            $known_plugins = array();
        }
        // map paths to indexes
        $id_map = array();
        foreach ($known_plugins as $i => $plugin) {
            // if the ID is wrong, delete the plugin because we can never load it.
            $id = $plugin->getID();
            if (!$id) {
                $plugin->delete();
                unset($known_plugins[$i]);
                continue;
            }
            $id_map[$plugin->getID()] = $i;
        }
        $physical_plugins = $this->getDirsInDir($mod_dir);
        if (!$physical_plugins) {
            return false;
        }
        // check real plugins against known ones
        foreach ($physical_plugins as $plugin_id) {
            // is this already in the db?
            if (array_key_exists($plugin_id, $id_map)) {
                $index = $id_map[$plugin_id];
                $plugin = $known_plugins[$index];
                // was this plugin deleted and its entity disabled?
                if (!$plugin->isEnabled()) {
                    $plugin->enable();
                    $plugin->deactivate();
                    $plugin->setPriority('last');
                }
                // remove from the list of plugins to disable
                unset($known_plugins[$index]);
            } else {
                // create new plugin
                // priority is forced to last in save() if not set.
                $plugin = new \ElggPlugin($mod_dir . $plugin_id);
                $plugin->save();
            }
        }
        // everything remaining in $known_plugins needs to be disabled
        // because they are entities, but their dirs were removed.
        // don't delete the entities because they hold settings.
        foreach ($known_plugins as $plugin) {
            if ($plugin->isActive()) {
                $plugin->deactivate();
            }
            // remove the priority.
            $name = $this->namespacePrivateSetting('internal', 'priority');
            remove_private_setting($plugin->guid, $name);
            if ($plugin->isEnabled()) {
                $plugin->disable();
            }
        }
        access_show_hidden_entities($old_access);
        elgg_set_ignore_access($old_ia);
        $this->reindexPriorities();
        return true;
    }