private function install()
 {
     global $wpdb;
     $sql = array();
     $charset_collate = '';
     //check if tables exist,
     //just update one table in that case
     require_once ABSPATH . 'wp-admin/includes/upgrade.php';
     /* BuddyPress component DB schema */
     if (!empty($wpdb->charset)) {
         $charset_collate = "DEFAULT CHARACTER SET {$wpdb->charset}";
     }
     $bp_prefix = bp_core_get_table_prefix();
     $bp_chat = bp_chat();
     //install
     $sql_table_exists_check = "SHOW TABLES LIKE '" . $bp_prefix . "_bp_chat_%'";
     if ($wpdb->get_col($sql_table_exists_check)) {
         ////just update the user table
         $sql[] = "ALTER TABLE {$bp_chat->table_name_users} MODIFY last_active_time DATETIME ";
     } else {
         //if tables do not exist
         $sql[] = "CREATE TABLE {$bp_chat->table_name_users} (\r\n\t\t\t\t\t\tuser_id bigint(20) NOT NULL,\r\n\t\t\t\t\t\tis_online tinyint(4) NOT NULL,\r\n\t\t\t\t\t\tlast_active_time datetime NOT NULL,\r\n\t\t\t\t\t\tstatus_message varchar(255) NOT NULL,\r\n\t\t\t\t\t\tlast_fetch_time datetime NOT NULL ,\r\n\t\t\t\t\t\tfriends_only tinyint(1) NOT NULL DEFAULT '0',\r\n\t\t\t\t\t\tPRIMARY KEY (user_id)\r\n\t\t\t\t\t  ) {$charset_collate};";
         $sql[] = "CREATE TABLE {$bp_chat->table_name_channels} (\r\n\t\t\t\t\t\tid bigint(20) unsigned NOT NULL AUTO_INCREMENT,\r\n\t\t\t\t\t\tlast_message_time timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,\r\n\t\t\t\t\t\ttime_created datetime NOT NULL,\r\n\t\t\t\t\t\tstatus tinyint(3) unsigned NOT NULL,\r\n\t\t\t\t\t\tis_multichat tinyint(3) NOT NULL,\r\n\t\t\t\t\t\tis_open tinyint(4) NOT NULL,\r\n\t\t\t\t\t\tPRIMARY KEY (id)\r\n\t\t\t\t\t ) {$charset_collate};";
         $sql[] = "CREATE TABLE {$bp_chat->table_name_channel_users} (\r\n\t\t\t\t\t\tchannel_id bigint(20) NOT NULL,\r\n\t\t\t\t\t\tuser_id bigint(20) NOT NULL,\r\n\t\t\t\t\t\tstatus varchar(32) NOT NULL,\r\n\t\t\t\t\t\thas_initiated tinyint(4) NOT NULL,\r\n\t\t\t\t\t\tKEY channel_id (channel_id,user_id)\r\n\t\t\t\t   ) {$charset_collate};";
         //meta data
         $sql[] = "CREATE TABLE {$bp_chat->table_name_messages} (\r\n\t\t\t\t\t\t\tid bigint(20) NOT NULL AUTO_INCREMENT,\r\n\t\t\t\t\t\t\tsender_id bigint(20) NOT NULL,\r\n\t\t\t\t\t\t\tchannel_id bigint(20) NOT NULL,\r\n\t\t\t\t\t\t\tmessage text NOT NULL,\r\n\t\t\t\t\t\t\tsent_at timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,\r\n\t\t\t\t\t\t\tPRIMARY KEY (id),\r\n\t\t\t\t\t\t\tKEY channel_id (channel_id)\r\n\t\t\t\t\t ) {$charset_collate};";
     }
     //execute sql
     dbDelta($sql);
     update_site_option('bp-chat-db-version', BP_CHAT_DB_VERSION);
 }

 private function setup_table_names()
 {
     $table_prefix = bp_core_get_table_prefix();
     $this->table_name_users = $table_prefix . 'bp_chat_users';
     $this->table_name_channels = $table_prefix . 'bp_chat_channels';
     $this->table_name_channel_users = $table_prefix . 'bp_chat_channel_users';
     $this->table_name_messages = $table_prefix . 'bp_chat_messages';
 }

 /**
  * Set up component global data.
  *
  * @since BuddyPress (1.9.0)
  *
  * @see BP_Component::setup_globals() for a description of arguments.
  *
  * @param array $args See BP_Component::setup_globals() for a description.
  */
 public function setup_globals($args = array())
 {
     // Define a slug, if necessary
     if (!defined('BP_NOTIFICATIONS_SLUG')) {
         define('BP_NOTIFICATIONS_SLUG', $this->id);
     }
     // Global tables for the notifications component
     $global_tables = array('table_name' => bp_core_get_table_prefix() . 'bp_notifications');
     // All globals for the notifications component.
     // Note that global_tables is included in this array.
     $args = array('slug' => BP_NOTIFICATIONS_SLUG, 'has_directory' => false, 'search_string' => __('Search Notifications...', 'buddypress'), 'global_tables' => $global_tables);
     parent::setup_globals($args);
 }

function mpp_upgrade_legacy_1_0_b1_activity()
{
    if (get_option('mpp_upgraded_1_0_b1')) {
        return;
        //already upgraded
    }
    add_option('mpp_upgraded_1_0_b1', 1);
    if (!get_option('mpp-settings')) {
        return;
        //mediapress was not installed earlier
    }
    if (!function_exists('buddypress')) {
        return;
    }
    global $wpdb;
    $activity_table = bp_core_get_table_prefix() . 'bp_activity_meta';
    //rename _mpp_attached_media_ids key tp _mpp_attached_media_id
    $sql = "UPDATE {$activity_table} SET meta_key = '_mpp_attached_media_id' WHERE meta_key = '_mpp_attached_media_ids'";
    $wpdb->query($sql);
    //add context to all Media comments
    $update_query = "INSERT INTO {$activity_table} (activity_id, meta_key, meta_value) \n\t\t\tSELECT  activity_id, %s as meta_key, %s as meta_value FROM {$activity_table} where meta_key ='_mpp_galery_id'";
    //update the context? should we?
    $wpdb->query($wpdb->prepare($update_query, '_mpp_context', 'gallery'));
    //update type
    $wpdb->query($wpdb->prepare($update_query, '_mpp_activity_type', 'media_upload'));
    //for media comments
    //$entries = $wpdb->get_col( "SELECT activity_id, meta_value FROM {$activity_table} WHERE meta_key = '_mpp_media_id'" );
    $entries = $wpdb->get_results("SELECT activity_id, meta_value FROM {$activity_table} WHERE meta_key = '_mpp_media_id'");
    $media_ids = wp_list_pluck($entries, 'meta_value');
    //comments are there
    if (!empty($media_ids)) {
        _prime_post_caches($media_ids, false, false);
        //add parent gallery id for each of the media
        foreach ($entries as $entry) {
            $media = get_post($entry->meta_value);
            mpp_activity_update_gallery_id($entry->activity_id, $media->post_parent);
        }
        //update context to 'media'
        $update_query = "INSERT INTO {$activity_table} (activity_id, meta_key, meta_value) \n\t\t\tSELECT  activity_id, %s as meta_key, %s as meta_value FROM {$activity_table} WHERE meta_key ='_mpp_media_id'";
        $wpdb->query($wpdb->prepare($update_query, '_mpp_activity_type', 'media_comment'));
        $wpdb->query($wpdb->prepare($update_query, '_mpp_activity_type', 'media'));
    }
}

 /**
  * Set up bp-members global settings.
  *
  * The BP_MEMBERS_SLUG constant is deprecated, and only used here for
  * backwards compatibility.
  *
  * @since 1.5.0
  *
  * @see BP_Component::setup_globals() for description of parameters.
  *
  * @param array $args See {@link BP_Component::setup_globals()}.
  */
 public function setup_globals($args = array())
 {
     global $wpdb;
     $bp = buddypress();
     /** Component Globals ************************************************
      */
     // Define a slug, as a fallback for backpat.
     if (!defined('BP_MEMBERS_SLUG')) {
         define('BP_MEMBERS_SLUG', $this->id);
     }
     // Override any passed args.
     $args = array('slug' => BP_MEMBERS_SLUG, 'root_slug' => isset($bp->pages->members->slug) ? $bp->pages->members->slug : BP_MEMBERS_SLUG, 'has_directory' => true, 'directory_title' => _x('Members', 'component directory title', 'buddypress'), 'search_string' => __('Search Members...', 'buddypress'), 'global_tables' => array('table_name_last_activity' => bp_core_get_table_prefix() . 'bp_activity', 'table_name_signups' => $wpdb->base_prefix . 'signups'));
     parent::setup_globals($args);
     /** Logged in user ***************************************************
      */
     // The core userdata of the user who is currently logged in.
     $bp->loggedin_user->userdata = bp_core_get_core_userdata(bp_loggedin_user_id());
     // Fetch the full name for the logged in user.
     $bp->loggedin_user->fullname = isset($bp->loggedin_user->userdata->display_name) ? $bp->loggedin_user->userdata->display_name : '';
     // Hits the DB on single WP installs so get this separately.
     $bp->loggedin_user->is_super_admin = $bp->loggedin_user->is_site_admin = is_super_admin(bp_loggedin_user_id());
     // The domain for the user currently logged in. eg: http://example.com/members/andy.
     $bp->loggedin_user->domain = bp_core_get_user_domain(bp_loggedin_user_id());
     /** Displayed user ***************************************************
      */
     // The core userdata of the user who is currently being displayed.
     $bp->displayed_user->userdata = bp_core_get_core_userdata(bp_displayed_user_id());
     // Fetch the full name displayed user.
     $bp->displayed_user->fullname = isset($bp->displayed_user->userdata->display_name) ? $bp->displayed_user->userdata->display_name : '';
     // The domain for the user currently being displayed.
     $bp->displayed_user->domain = bp_core_get_user_domain(bp_displayed_user_id());
     /** Signup ***********************************************************
      */
     $bp->signup = new stdClass();
     /** Profiles Fallback ************************************************
      */
     if (!bp_is_active('xprofile')) {
         $bp->profile = new stdClass();
         $bp->profile->slug = 'profile';
         $bp->profile->id = 'profile';
     }
 }

/**
 * Install database tables for the Sites component
 *
 * @since BuddyPress (1.0.0)
 *
 * @uses bp_core_set_charset()
 * @uses bp_core_get_table_prefix()
 * @uses dbDelta()
 */
function bp_core_install_blog_tracking()
{
    $sql = array();
    $charset_collate = bp_core_set_charset();
    $bp_prefix = bp_core_get_table_prefix();
    $sql[] = "CREATE TABLE {$bp_prefix}bp_user_blogs (\n\t\t\t\tid bigint(20) NOT NULL AUTO_INCREMENT PRIMARY KEY,\n\t\t\t\tuser_id bigint(20) NOT NULL,\n\t\t\t\tblog_id bigint(20) NOT NULL,\n\t\t\t\tKEY user_id (user_id),\n\t\t\t\tKEY blog_id (blog_id)\n\t\t\t) {$charset_collate};";
    $sql[] = "CREATE TABLE {$bp_prefix}bp_user_blogs_blogmeta (\n\t\t\t\tid bigint(20) NOT NULL AUTO_INCREMENT PRIMARY KEY,\n\t\t\t\tblog_id bigint(20) NOT NULL,\n\t\t\t\tmeta_key varchar(255) DEFAULT NULL,\n\t\t\t\tmeta_value longtext DEFAULT NULL,\n\t\t\t\tKEY blog_id (blog_id),\n\t\t\t\tKEY meta_key (meta_key(191))\n\t\t\t) {$charset_collate};";
    dbDelta($sql);
}

/**
 * Perform database operations that must take place before the general schema upgrades.
 *
 * `dbDelta()` cannot handle certain operations - like changing indexes - so we do it here instead.
 *
 * @since 2.3.0
 */
function bp_pre_schema_upgrade()
{
    global $wpdb;
    $raw_db_version = (int) bp_get_db_version_raw();
    $bp_prefix = bp_core_get_table_prefix();
    // 2.3.0: Change index lengths to account for utf8mb4.
    if ($raw_db_version < 9695) {
        // table_name => columns.
        $tables = array($bp_prefix . 'bp_activity_meta' => array('meta_key'), $bp_prefix . 'bp_groups_groupmeta' => array('meta_key'), $bp_prefix . 'bp_messages_meta' => array('meta_key'), $bp_prefix . 'bp_notifications_meta' => array('meta_key'), $bp_prefix . 'bp_user_blogs_blogmeta' => array('meta_key'), $bp_prefix . 'bp_xprofile_meta' => array('meta_key'));
        foreach ($tables as $table_name => $indexes) {
            foreach ($indexes as $index) {
                if ($wpdb->query($wpdb->prepare("SHOW TABLES LIKE %s", bp_esc_like($table_name)))) {
                    $wpdb->query("ALTER TABLE {$table_name} DROP INDEX {$index}");
                }
            }
        }
    }
}

 /**
  * Create/update the BuddyPress profile field.
  */
 function set_bp_xprofile_field($field_id, $user_id, $data)
 {
     if (!defined('BP_VERSION')) {
         return true;
     }
     $field_id = (int) $field_id;
     $user_id = (int) $user_id;
     if (!$field_id || !$user_id) {
         return false;
     }
     //if (is_array($data)) $data = $data['name']; // For complex FB fields that return JSON objects
     if (is_array($data) && isset($data['name'])) {
         $data = $data['name'];
     } else {
         if (is_array($data) && isset($data[0]) && isset($data[0]['name'])) {
             $data = join(', ', array_map(create_function('$m', 'return $m["name"];'), $data));
         }
     }
     $data = apply_filters('wdfb-profile_sync-bp-field_value', $data, $field_id, $user_id);
     if (!$data) {
         return false;
     }
     // Don't waste cycles if we don't need to
     $tbl_pfx = function_exists('bp_core_get_table_prefix') ? bp_core_get_table_prefix() : apply_filters('bp_core_get_table_prefix', $this->db->base_prefix);
     $sql = "SELECT id FROM {$tbl_pfx}bp_xprofile_data WHERE field_id={$field_id} AND user_id={$user_id}";
     $id = $this->db->get_var($sql);
     if ($id) {
         $sql = "UPDATE {$tbl_pfx}bp_xprofile_data SET value='" . $data . "' WHERE id={$id}";
     } else {
         $sql = "INSERT INTO {$tbl_pfx}bp_xprofile_data (field_id, user_id, value, last_updated) VALUES (" . (int) $field_id . ', ' . (int) $user_id . ", '" . $data . "', '" . date('Y-m-d H:i:s') . "')";
     }
     return $this->db->query($sql);
 }

function buddypress_f_p_c_notice()
{
    if (is_user_logged_in()) {
        $user_id = wp_get_current_user()->ID;
        $current_url = 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
        $redirect_url = buddypress_get_redirect_url($user_id);
        if (strpos($current_url, $redirect_url) !== false) {
            global $wpdb;
            $bp_prefix = bp_core_get_table_prefix();
            $xprofile_fields = $wpdb->get_results("SELECT `name` FROM {$bp_prefix}bp_xprofile_fields WHERE parent_id = 0 AND is_required = 1 AND id NOT IN (SELECT field_id FROM {$bp_prefix}bp_xprofile_data WHERE user_id = {$user_id} AND `value` IS NOT NULL AND `value` != '')");
            $xprofile_fields_count = count($xprofile_fields);
            if ($xprofile_fields_count > 0) {
                // Assigning notification message in $message variable
                $message = '<div id="buddypress_fpc_message" style="color: white; font-size: 18px;font-variant: small-caps;">' . __('Complete Your Missed Profile Completion', 'Buddypress Force Profile Completion') . ' [' . $xprofile_fields_count . __(' Missing', 'Buddypress Force Profile Completion') . ']</div>';
                $message .= '<ol id="buddypress_fpc_fields" class="msg_class">';
                foreach ($xprofile_fields as $field) {
                    $message .= '<li>' . $field->name . $field->description . '&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span>Required Field !</span></li>';
                }
                $message .= '</ol>';
                echo '<div id="buddypress_fpc_notice" class="notice_msg foot_1"><div id="buddypress_fpc_container" class="red">' . $message . '</div></div>';
            }
        }
    }
}

function bpdd_clear_db()
{
    global $wpdb;
    $prefix = bp_core_get_table_prefix();
    if (bp_is_active('activity')) {
        $sqls[] = "TRUNCATE TABLE {$prefix}bp_activity;";
        $sqls[] = "TRUNCATE TABLE {$prefix}bp_activity_meta;";
    }
    if (bp_is_active('groups')) {
        $sqls[] = "TRUNCATE TABLE {$prefix}bp_groups;";
        $sqls[] = "TRUNCATE TABLE {$prefix}bp_groups_members;";
        $sqls[] = "TRUNCATE TABLE {$prefix}bp_groups_groupmeta;";
    }
    if (bp_is_active('messages')) {
        $sqls[] = "TRUNCATE TABLE {$prefix}bp_messages_recipients;";
        $sqls[] = "TRUNCATE TABLE {$prefix}bp_messages_messages;";
    }
    if (bp_is_active('friends')) {
        $sqls[] = "TRUNCATE TABLE {$prefix}bp_friends;";
    }
    if (bp_is_active('xprofile')) {
        $sqls[] = "DELETE FROM {$prefix}bp_xprofile_data WHERE user_id > 1;";
    }
    if (bp_is_active('forums') && bp_forums_is_installed_correctly()) {
        $sqls[] = "TRUNCATE TABLE {$prefix}bb_posts;";
        $sqls[] = "DELETE FROM {$prefix}bb_forums WHERE forum_id > 1;";
    }
    $sqls[] = "TRUNCATE TABLE {$prefix}bp_notifications;";
    $sqls[] = "DELETE FROM {$wpdb->prefix}users WHERE ID > 1;";
    $sqls[] = "DELETE FROM {$wpdb->prefix}usermeta WHERE user_id > 1;";
    $sqls[] = "DELETE FROM {$wpdb->prefix}usermeta WHERE meta_key = 'total_friend_count';";
    foreach ($sqls as $sql) {
        $wpdb->query($sql);
    }
}

 /**
  * SETUP MENU, ADD NAVIGATION OPTIONS
  *
  * @since	BuddyBoss 2.0
  * @todo: cache the amount of pics
  */
 function setup_bp_menu()
 {
     global $wpdb, $bp;
     if (!isset($bp->displayed_user->id)) {
         return;
     }
     $photos_user_id = $bp->displayed_user->id;
     $activity_table = bp_core_get_table_prefix() . 'bp_activity';
     $activity_meta_table = bp_core_get_table_prefix() . 'bp_activity_meta';
     $groups_table = bp_core_get_table_prefix() . 'bp_groups';
     // Prepare a SQL query to retrieve the activity posts
     // that have pictures associated with them
     $sql = "SELECT COUNT(*) as photo_count FROM {$activity_table} a\n\t\t\t\t\t\t\tINNER JOIN {$activity_meta_table} am ON a.id = am.activity_id\n\t\t\t\t\t\t\tLEFT JOIN (SELECT activity_id, meta_key, meta_value FROM {$activity_meta_table}\n\t\t\t\t\t\t\t           WHERE meta_key = 'activityprivacy') am2 ON a.id = am2.activity_id\n\t  \t\t\t\t\tLEFT JOIN (SELECT id FROM {$groups_table} WHERE status != 'public' ) grp ON a.item_id = grp.id\n\t\t\t\t\t\t\tWHERE a.user_id = %d\n\t\t\t\t\t\t\tAND (am.meta_key = 'buddyboss_pics_aid' OR am.meta_key = 'bboss_pics_aid')\n\t\t\t\t\t\t\tAND (a.component != 'groups' || a.item_id != grp.id)";
     $sql = $wpdb->prepare($sql, $photos_user_id);
     buddyboss_log(' MENU PHOTO COUNT SQL ');
     buddyboss_log($sql);
     $photos_cnt = $wpdb->get_var($sql);
     /* Add 'Photos' to the main user profile navigation */
     bp_core_new_nav_item(array('name' => sprintf(__('Photos <span>%d</span>', 'buddyboss'), $photos_cnt), 'slug' => BUDDYBOSS_PICS_SLUG, 'position' => 80, 'screen_function' => 'buddyboss_pics_screen_picture_grid', 'default_subnav_slug' => 'my-gallery'));
     $buddyboss_pics_link = $bp->displayed_user->domain . BUDDYBOSS_PICS_SLUG . '/';
     bp_core_new_subnav_item(array('name' => __('Photos', 'buddyboss'), 'slug' => 'my-gallery', 'parent_slug' => BUDDYBOSS_PICS_SLUG, 'parent_url' => $buddyboss_pics_link, 'screen_function' => 'buddyboss_pics_screen_picture_grid', 'position' => 10));
 }

 /**
  * Set up bp-core global settings.
  *
  * Sets up a majority of the BuddyPress globals that require a minimal
  * amount of processing, meaning they cannot be set in the BuddyPress class.
  *
  * @since BuddyPress (1.5.0)
  *
  * @see BP_Component::setup_globals() for description of parameters.
  *
  * @param array $args See {@link BP_Component::setup_globals()}.
  */
 public function setup_globals($args = array())
 {
     $bp = buddypress();
     /** Database **********************************************************/
     // Get the base database prefix
     if (empty($bp->table_prefix)) {
         $bp->table_prefix = bp_core_get_table_prefix();
     }
     // The domain for the root of the site where the main blog resides
     if (empty($bp->root_domain)) {
         $bp->root_domain = bp_core_get_root_domain();
     }
     // Fetches all of the core BuddyPress settings in one fell swoop
     if (empty($bp->site_options)) {
         $bp->site_options = bp_core_get_root_options();
     }
     // The names of the core WordPress pages used to display BuddyPress content
     if (empty($bp->pages)) {
         $bp->pages = bp_core_get_directory_pages();
     }
     /** Basic current user data *******************************************/
     // Logged in user is the 'current_user'
     $current_user = wp_get_current_user();
     // The user ID of the user who is currently logged in.
     $bp->loggedin_user = new stdClass();
     $bp->loggedin_user->id = isset($current_user->ID) ? $current_user->ID : 0;
     /** Avatars ***********************************************************/
     // Fetches the default Gravatar image to use if the user/group/blog has no avatar or gravatar
     $bp->grav_default = new stdClass();
     $bp->grav_default->user = apply_filters('bp_user_gravatar_default', $bp->site_options['avatar_default']);
     $bp->grav_default->group = apply_filters('bp_group_gravatar_default', $bp->grav_default->user);
     $bp->grav_default->blog = apply_filters('bp_blog_gravatar_default', $bp->grav_default->user);
     // Notifications table. Included here for legacy purposes. Use
     // bp-notifications instead.
     $bp->core->table_name_notifications = $bp->table_prefix . 'bp_notifications';
     /**
      * Used to determine if user has admin rights on current content. If the
      * logged in user is viewing their own profile and wants to delete
      * something, is_item_admin is used. This is a generic variable so it
      * can be used by other components. It can also be modified, so when
      * viewing a group 'is_item_admin' would be 'true' if they are a group
      * admin, and 'false' if they are not.
      */
     bp_update_is_item_admin(bp_user_has_access(), 'core');
     // Is the logged in user is a mod for the current item?
     bp_update_is_item_mod(false, 'core');
     do_action('bp_core_setup_globals');
 }

 /**
  * Upgrade method for the older BP message thread DB table.
  *
  * @since 1.2.0
  *
  * @todo We should remove this.  No one is going to upgrade from v1.1, right?
  * @return bool
  */
 public static function update_tables()
 {
     global $wpdb;
     $bp_prefix = bp_core_get_table_prefix();
     $errors = false;
     $threads = $wpdb->get_results("SELECT * FROM {$bp_prefix}bp_messages_threads");
     // Nothing to update, just return true to remove the table
     if (empty($threads)) {
         return true;
     }
     $bp = buddypress();
     foreach ((array) $threads as $thread) {
         $message_ids = maybe_unserialize($thread->message_ids);
         if (!empty($message_ids)) {
             $message_ids = implode(',', $message_ids);
             // Add the thread_id to the messages table
             if (!$wpdb->query($wpdb->prepare("UPDATE {$bp->messages->table_name_messages} SET thread_id = %d WHERE id IN ({$message_ids})", $thread->id))) {
                 $errors = true;
             }
         }
     }
     return (bool) (!$errors);
 }

 function activity_privacy($sql, $select_sql, $from_sql, $where_sql, $sort, $pag_sql = '')
 {
     if (is_rt_admin()) {
         return $sql;
     }
     $sql = '';
     $where = '';
     global $bp, $wpdb;
     $rtmedia_model = new RTMediaModel();
     if (is_user_logged_in()) {
         $user = get_current_user_id();
     } else {
         $user = 0;
     }
     // admin has upgraded rtmedia activity so we can use rt_rtm_activity table for rtmedia related activity filters
     if ($this->can_use_rtm_ac_privacy()) {
         $rtmedia_activity_model = new RTMediaActivityModel();
         $where .= " ({$this->rtm_activity_table_alias}.privacy is NULL OR {$this->rtm_activity_table_alias}.privacy <= 0) ";
         if ($user) {
             $where .= "OR (({$this->rtm_activity_table_alias}.privacy=20)";
             $where .= " OR (a.user_id={$user} AND {$this->rtm_activity_table_alias}.privacy >= 40)";
             if (class_exists('BuddyPress')) {
                 if (bp_is_active('friends')) {
                     $friendship = new RTMediaFriends();
                     $friends = $friendship->get_friends_cache($user);
                     if (isset($friends) && !empty($friends)) {
                         $in_str_arr = array_fill(0, count($friends), '%d');
                         $in_str = join(',', $in_str_arr);
                         $where .= $wpdb->prepare(" OR ({$this->rtm_activity_table_alias}.privacy=40 AND a.user_id IN ({$in_str}) )", $friends);
                         // @codingStandardsIgnoreLine
                     }
                 }
             }
             $where .= ')';
         }
         if (strpos($select_sql, 'SELECT DISTINCT') === false) {
             $select_sql = str_replace('SELECT', 'SELECT DISTINCT', $select_sql);
         }
         $select_sql .= " ,{$this->rtm_activity_table_alias}.privacy ";
         $from_sql = $wpdb->prepare(" FROM {$bp->activity->table_name} a LEFT JOIN {$wpdb->users} u ON a.user_id = u.ID LEFT JOIN {$rtmedia_activity_model->table_name} {$this->rtm_activity_table_alias} ON ( a.id = {$this->rtm_activity_table_alias}.activity_id and ra.blog_id = %d ) ", get_current_blog_id());
         // @codingStandardsIgnoreLine
         // removed NOT EXISTS check for `rtmedia_privacy` activty meta value.
         // check git history for more details ;)
         $where_sql = $where_sql . " AND ({$where})";
         $newsql = "{$select_sql} {$from_sql} {$where_sql} ORDER BY a.date_recorded {$sort} {$pag_sql}";
     } else {
         $where .= ' (m.max_privacy is NULL OR m.max_privacy <= 0) ';
         if ($user) {
             $where .= 'OR ((m.max_privacy=20)';
             $where .= " OR (a.user_id={$user} AND m.max_privacy >= 40)";
             if (class_exists('BuddyPress')) {
                 if (bp_is_active('friends')) {
                     $friendship = new RTMediaFriends();
                     $friends = $friendship->get_friends_cache($user);
                     if (isset($friends) && !empty($friends)) {
                         $where .= " OR (m.max_privacy=40 AND a.user_id IN ('" . implode("','", $friends) . "'))";
                     }
                 }
             }
             $where .= ')';
         }
         if (function_exists('bp_core_get_table_prefix')) {
             $bp_prefix = bp_core_get_table_prefix();
         } else {
             $bp_prefix = '';
         }
         if (strpos($select_sql, 'SELECT DISTINCT') === false) {
             $select_sql = str_replace('SELECT', 'SELECT DISTINCT', $select_sql);
         }
         $media_table = "SELECT *, max( privacy ) as max_privacy from {$rtmedia_model->table_name} group by activity_id";
         $from_sql = $wpdb->prepare(" FROM {$bp->activity->table_name} a LEFT JOIN {$wpdb->users} u ON a.user_id = u.ID LEFT JOIN ( {$media_table} ) m ON ( a.id = m.activity_id AND m.blog_id = %d ) ", get_current_blog_id());
         // @codingStandardsIgnoreLine
         $where_sql = $where_sql . " AND (NOT EXISTS (SELECT m.activity_id FROM {$bp_prefix}bp_activity_meta m WHERE m.meta_key='rtmedia_privacy' AND m.activity_id=a.id) OR ( {$where} ) )";
         $newsql = "{$select_sql} {$from_sql} {$where_sql} ORDER BY a.date_recorded {$sort} {$pag_sql}";
     }
     return $newsql;
 }

/**
 * Manages plugin install and upgrade.
 *
 * @since 2.0.2
 * @global object $bp BuddyPress global settings
 * @global nxtdb $nxtdb NXTClass database object
 */
function dpa_install_and_upgrade()
{
    global $bp, $nxtdb;
    $version = get_site_option('achievements-db-version');
    if (false !== $version && ACHIEVEMENTS_DB_VERSION == $version) {
        return;
    }
    if (!$version) {
        $version = 0;
    }
    $charset_collate = !empty($nxtdb->charset) ? "DEFAULT CHARACTER SET {$nxtdb->charset}" : '';
    $table_prefix = bp_core_get_table_prefix();
    if ($version != ACHIEVEMENTS_DB_VERSION) {
        for ($i = $version; $i < ACHIEVEMENTS_DB_VERSION; $i++) {
            switch ($i) {
                case 0:
                    $sql = array();
                    $sql[] = "CREATE TABLE {$table_prefix}achievements (\n\t\t\t\t\t\t\t\t\tid bigint(20) NOT NULL AUTO_INCREMENT PRIMARY KEY,\n\t\t\t\t\t\t\t\t\taction_id bigint(20) NOT NULL,\n\t\t\t\t\t\t\t\t\tpicture_id bigint(20) NOT NULL,\n\t\t\t\t\t\t\t\t\taction_count SMALLINT NOT NULL,\n\t\t\t\t\t\t\t\t\tname VARCHAR(200) NOT NULL,\n\t\t\t\t\t\t\t\t\tdescription text NOT NULL,\n\t\t\t\t\t\t\t\t\tpoints int NOT NULL,\n\t\t\t\t\t\t\t\t\tis_active int(1) NOT NULL,\n\t\t\t\t\t\t\t\t\tslug VARCHAR(200) NOT NULL,\n\t\t\t\t\t\t\t\t\tKEY action_id_is_active (action_id,is_active),\n\t\t\t\t\t\t\t\t\tKEY slug (slug(20))\n\t\t\t\t\t\t\t\t ) {$charset_collate};";
                    $sql[] = "CREATE TABLE {$table_prefix}achievements_unlocked (\n\t\t\t\t\t\t\t\t\tid bigint(20) NOT NULL AUTO_INCREMENT PRIMARY KEY,\n\t\t\t\t\t\t\t\t\tachievement_id bigint(20) NOT NULL,\n\t\t\t\t\t\t\t\t  user_id bigint(20) NOT NULL,\n\t\t\t\t\t\t\t\t\tachieved_at DATETIME NOT NULL,\n\t\t\t\t\t\t\t\t\tKEY user_id (user_id),\n\t\t\t\t\t\t\t\t\tKEY achievement_id (achievement_id),\n\t\t\t\t\t\t\t\t\tKEY user_achievement_ids (user_id,achievement_id)\n\t\t\t\t\t\t\t\t ) {$charset_collate};";
                    $sql[] = "CREATE TABLE {$table_prefix}achievements_actions (\n\t\t\t\t\t\t\t\t\tid bigint(20) NOT NULL AUTO_INCREMENT PRIMARY KEY,\n\t\t\t\t\t\t\t\t\tcategory TINYTEXT NOT NULL,\n\t\t\t\t\t\t\t\t\tname text NOT NULL,\n\t\t\t\t\t\t\t\t\tdescription text NOT NULL\n\t\t\t\t\t\t\t\t ) {$charset_collate};";
                    require_once ABSPATH . 'nxt-admin/includes/upgrade.php';
                    dbDelta($sql);
                    // Insert the default actions
                    $actions = array();
                    $actions[] = array('category' => 'blog', 'name' => 'comment_post', 'description' => __("The user writes a comment on a post or page.", 'dpa'));
                    $actions[] = array('category' => 'blog', 'name' => 'publish_post', 'description' => __("The user publishes a post or page.", 'dpa'));
                    $actions[] = array('category' => 'members', 'name' => 'friends_friendship_requested', 'description' => __("The user sends a friendship request to someone.", 'dpa'));
                    $actions[] = array('category' => 'groups', 'name' => 'groups_invite_user', 'description' => __("The user invites someone to join a group.", 'dpa'));
                    $actions[] = array('category' => 'groups', 'name' => 'groups_join_group', 'description' => __("The user joins a group.", 'dpa'));
                    $actions[] = array('category' => 'groups', 'name' => 'groups_promoted_member', 'description' => __("The user promotes a group member to a moderator or administrator.", 'dpa'));
                    $actions[] = array('category' => 'messaging', 'name' => 'messages_message_sent', 'description' => __("The user sends or replies to a private message.", 'dpa'));
                    $actions[] = array('category' => 'profile', 'name' => 'xprofile_updated_profile', 'description' => __("The user updates their profile.", 'dpa'));
                    $actions[] = array('category' => 'profile', 'name' => 'bp_core_activated_user', 'description' => __("A new user activates their account.", 'dpa'));
                    foreach ($actions as $action) {
                        $nxtdb->insert("{$table_prefix}achievements_actions", $action);
                    }
                    // Per-achievement settings: number of people who have unlocked it.
                    update_site_option('achievements_meta', array());
                    // 0 => array( 'no_of_unlocks' => 0 )
                    break;
                case 1:
                    $nxtdb->query($nxtdb->prepare("ALTER TABLE {$table_prefix}achievements ADD COLUMN site_id bigint(20) NOT NULL"));
                    $nxtdb->update("{$table_prefix}achievements", array('site_id' => BP_ROOT_BLOG), null, '%d');
                    break;
                case 2:
                    $actions = array();
                    $actions[] = array('category' => 'profile', 'name' => 'xprofile_avatar_uploaded', 'description' => __("The user changes their profile's avatar.", 'dpa'));
                    $actions[] = array('category' => 'members', 'name' => 'friends_friendship_accepted', 'description' => __("The user accepts a friendship request from someone.", 'dpa'));
                    $actions[] = array('category' => 'members', 'name' => 'friends_friendship_rejected', 'description' => __("The user rejects a friendship request from someone.", 'dpa'));
                    $actions[] = array('category' => 'blog', 'name' => 'trashed_post', 'description' => __("The user trashes a post or page.", 'dpa'));
                    $actions[] = array('category' => 'messaging', 'name' => 'messages_delete_thread', 'description' => __("The user deletes a private message.", 'dpa'));
                    $actions[] = array('category' => 'members', 'name' => 'friends_friendship_deleted', 'description' => __("The user cancels a friendship.", 'dpa'));
                    $actions[] = array('category' => 'groups', 'name' => 'groups_created_group', 'description' => __("The user creates a group.", 'dpa'));
                    $actions[] = array('category' => 'groups', 'name' => 'groups_leave_group', 'description' => __("The user leaves a group.", 'dpa'));
                    $actions[] = array('category' => 'groups', 'name' => 'groups_delete_group', 'description' => __("The user deletes a group.", 'dpa'));
                    $actions[] = array('category' => 'groups', 'name' => 'groups_new_forum_topic', 'description' => __("The user creates a new group forum topic.", 'dpa'));
                    $actions[] = array('category' => 'groups', 'name' => 'groups_new_forum_topic_post', 'description' => __("The user replies to a group forum topic.", 'dpa'));
                    $actions[] = array('category' => 'groups', 'name' => 'groups_delete_group_forum_post', 'description' => __("The user deletes a group forum post.", 'dpa'));
                    $actions[] = array('category' => 'groups', 'name' => 'groups_delete_group_forum_topic', 'description' => __("The user deletes a group forum topic.", 'dpa'));
                    $actions[] = array('category' => 'groups', 'name' => 'groups_update_group_forum_post', 'description' => __("The user modifies a group forum post.", 'dpa'));
                    $actions[] = array('category' => 'groups', 'name' => 'groups_update_group_forum_topic', 'description' => __("The user modifies a group forum topic.", 'dpa'));
                    $actions[] = array('category' => 'groups', 'name' => 'bp_groups_posted_update', 'description' => __("The user writes a message in a group's activity stream.", 'dpa'));
                    $actions[] = array('category' => 'profile', 'name' => 'bp_activity_posted_update', 'description' => __("The user writes a message in their activity stream.", 'dpa'));
                    foreach ($actions as $action) {
                        $nxtdb->insert("{$table_prefix}achievements_actions", $action);
                    }
                    break;
                case 3:
                    $actions = array();
                    $actions[] = array('category' => 'members', 'name' => 'bp_activity_comment_posted', 'description' => __("The user replies to any item in any activity stream.", 'dpa'));
                    $actions[] = array('category' => 'blog', 'name' => 'signup_finished', 'description' => __("The user creates a new site.", 'dpa'));
                    foreach ($actions as $action) {
                        $nxtdb->insert("{$table_prefix}achievements_actions", $action);
                    }
                    break;
                case 4:
                    $nxtdb->query($nxtdb->prepare("CREATE INDEX name ON {$table_prefix}achievements (name(20))"));
                    $nxtdb->query($nxtdb->prepare("CREATE INDEX action_id ON {$table_prefix}achievements (action_id)"));
                    $nxtdb->query($nxtdb->prepare("CREATE INDEX description ON {$table_prefix}achievements (description(20))"));
                    break;
                case 5:
                    $nxtdb->query($nxtdb->prepare("ALTER TABLE {$table_prefix}achievements ADD COLUMN group_id bigint(20) NOT NULL"));
                    $nxtdb->update("{$table_prefix}achievements", array('group_id' => -1), null, '%d');
                    $nxtdb->query($nxtdb->prepare("CREATE INDEX group_id ON {$table_prefix}achievements (group_id)"));
                    break;
                case 6:
                    $nxtdb->update("{$table_prefix}achievements_actions", array('name' => 'bp_core_activated_user'), array('name' => 'bp_core_account_activated'), '%s');
                    break;
                case 7:
                    $actions = array();
                    $actions[] = array('category' => 'achievements', 'name' => 'dpa_points_incremented', 'description' => __("The user is awarded points by unlocking an Achievement.", 'dpa'));
                    $actions[] = array('category' => 'achievements', 'name' => 'dpa_achievement_unlocked', 'description' => __("The user unlocks an Achievement.", 'dpa'));
                    foreach ($actions as $action) {
//.........这里部分代码省略.........

 function setup_globals()
 {
     global $bp;
     /** Database **********************************************************/
     // Get the base database prefix
     if (empty($bp->table_prefix)) {
         $bp->table_prefix = bp_core_get_table_prefix();
     }
     // The domain for the root of the site where the main blog resides
     if (empty($bp->root_domain)) {
         $bp->root_domain = bp_core_get_root_domain();
     }
     // Fetches all of the core BuddyPress settings in one fell swoop
     if (empty($bp->site_options)) {
         $bp->site_options = bp_core_get_root_options();
     }
     // The names of the core NXTClass pages used to display BuddyPress content
     if (empty($bp->pages)) {
         $bp->pages = bp_core_get_directory_pages();
     }
     /** Admin Bar *********************************************************/
     // Set the 'My Account' global to prevent debug notices
     $bp->my_account_menu_id = false;
     /** Component and Action **********************************************/
     // Used for overriding the 2nd level navigation menu so it can be used to
     // display custom navigation for an item (for example a group)
     $bp->is_single_item = false;
     // Sets up the array container for the component navigation rendered
     // by bp_get_nav()
     $bp->bp_nav = array();
     // Sets up the array container for the component options navigation
     // rendered by bp_get_options_nav()
     $bp->bp_options_nav = array();
     // Contains an array of all the active components. The key is the slug,
     // value the internal ID of the component.
     //$bp->active_components = array();
     /** Basic current user data *******************************************/
     // Logged in user is the 'current_user'
     $current_user = nxt_get_current_user();
     // The user ID of the user who is currently logged in.
     $bp->loggedin_user->id = $current_user->ID;
     /** Avatars ***********************************************************/
     // Fetches the default Gravatar image to use if the user/group/blog has no avatar or gravatar
     $bp->grav_default->user = apply_filters('bp_user_gravatar_default', $bp->site_options['avatar_default']);
     $bp->grav_default->group = apply_filters('bp_group_gravatar_default', $bp->grav_default->user);
     $bp->grav_default->blog = apply_filters('bp_blog_gravatar_default', $bp->grav_default->user);
     // Notifications Table
     $bp->core->table_name_notifications = $bp->table_prefix . 'bp_notifications';
     /**
      * Used to determine if user has admin rights on current content. If the
      * logged in user is viewing their own profile and wants to delete
      * something, is_item_admin is used. This is a generic variable so it
      * can be used by other components. It can also be modified, so when
      * viewing a group 'is_item_admin' would be 'true' if they are a group
      * admin, and 'false' if they are not.
      */
     bp_update_is_item_admin(bp_user_has_access(), 'core');
     // Is the logged in user is a mod for the current item?
     bp_update_is_item_mod(false, 'core');
     do_action('bp_core_setup_globals');
 }