public function setup_globals() {

		/** Forum Section *****************************************************/

		// Old forum id (Stored in postmeta)
		$this->field_map[] = array(
			'from_tablename' => 'kunena_categories',
			'from_fieldname' => 'id',
			'to_type'        => 'forum',
			'to_fieldname'   => '_bbp_old_forum_id'
		);

		// Forum parent id (If no parent, then 0, Stored in postmeta)
		$this->field_map[] = array(
			'from_tablename' => 'kunena_categories',
			'from_fieldname' => 'parent',
			'to_type'        => 'forum',
			'to_fieldname'   => '_bbp_old_forum_parent_id'
		);

		// Forum topic count (Stored in postmeta)
		$this->field_map[] = array(
			'from_tablename' => 'kunena_categories',
			'from_fieldname' => 'numTopics',
			'to_type'        => 'forum',
			'to_fieldname'   => '_bbp_topic_count'
		);

		// Forum reply count (Stored in postmeta)
		$this->field_map[] = array(
			'from_tablename' => 'kunena_categories',
			'from_fieldname' => 'numPosts',
			'to_type'        => 'forum',
			'to_fieldname'   => '_bbp_reply_count'
		);

		// Forum total topic count (Includes unpublished topics, Stored in postmeta)
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_categories',
			'from_fieldname'  => 'numTopics',
			'to_type'         => 'forum',
			'to_fieldname'    => '_bbp_total_topic_count'
		);

		// Forum total reply count (Includes unpublished replies, Stored in postmeta)
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_categories',
			'from_fieldname'  => 'numPosts',
			'to_type'         => 'forum',
			'to_fieldname'    => '_bbp_total_reply_count'
		);

		// Forum title.
		$this->field_map[] = array(
			'from_tablename' => 'kunena_categories',
			'from_fieldname' => 'name',
			'to_type'        => 'forum',
			'to_fieldname'   => 'post_title'
		);

		// Forum slug (Clean name to avoid conflicts)
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_categories',
			'from_fieldname'  => 'name',
			'to_type'         => 'forum',
			'to_fieldname'    => 'post_name',
			'callback_method' => 'callback_slug'
		);

		// Forum description.
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_categories',
			'from_fieldname'  => 'description',
			'to_type'         => 'forum',
			'to_fieldname'    => 'post_content',
			'callback_method' => 'callback_null'
		);

		// Forum display order (Starts from 1)
		$this->field_map[] = array(
			'from_tablename' => 'kunena_categories',
			'from_fieldname' => 'ordering',
			'to_type'        => 'forum',
			'to_fieldname'   => 'menu_order'
		);

		// Forum type (Category = 0 or Forum > 0, Stored in postmeta)
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_categories',
			'from_fieldname'  => 'parent',
			'to_type'         => 'forum',
			'to_fieldname'    => '_bbp_forum_type',
			'callback_method' => 'callback_forum_type'
		);

		// Forum status (Open = 0 or Closed = 1, Stored in postmeta)
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_categories',
			'from_fieldname'  => 'locked',
			'to_type'         => 'forum',
			'to_fieldname'    => '_bbp_status',
			'callback_method' => 'callback_forum_status'
		);

		// Forum dates.
		$this->field_map[] = array(
			'to_type'      => 'forum',
			'to_fieldname' => 'post_date',
			'default'      => date('Y-m-d H:i:s')
		);
		$this->field_map[] = array(
			'to_type'      => 'forum',
			'to_fieldname' => 'post_date_gmt',
			'default'      => date('Y-m-d H:i:s')
		);
		$this->field_map[] = array(
			'to_type'      => 'forum',
			'to_fieldname' => 'post_modified',
			'default'      => date('Y-m-d H:i:s')
		);
		$this->field_map[] = array(
			'to_type'      => 'forum',
			'to_fieldname' => 'post_modified_gmt',
			'default'      => date('Y-m-d H:i:s')
		);

		/** Topic Section *****************************************************/

		// Old topic id (Stored in postmeta)
		$this->field_map[] = array(
			'from_tablename' => 'kunena_messages',
			'from_fieldname' => 'thread',
			'to_type'        => 'topic',
			'to_fieldname'   => '_bbp_old_topic_id'
		);

		// Topic parent forum id (If no parent, then 0. Stored in postmeta)
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_messages',
			'from_fieldname'  => 'catid',
			'to_type'         => 'topic',
			'to_fieldname'    => '_bbp_forum_id',
			'callback_method' => 'callback_forumid'
		);

		// Topic author.
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_messages',
			'from_fieldname'  => 'userid',
			'to_type'         => 'topic',
			'to_fieldname'    => 'post_author',
			'callback_method' => 'callback_userid'
		);

		// Topic Author ip (Stored in postmeta)
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_messages',
			'from_fieldname'  => 'ip',
			'to_type'         => 'topic',
			'to_fieldname'    => '_bbp_author_ip'
		);

		// Topic content.
		// Note: We join the 'kunena_messages_text' table because 'kunena_messages' table does not include topic content.
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_messages_text',
			'from_fieldname'  => 'message',
			'join_tablename'  => 'kunena_messages',
			'join_type'       => 'INNER',
			'join_expression' => 'ON kunena_messages_text.mesid = kunena_messages.id WHERE kunena_messages.parent = 0',
			'to_type'         => 'topic',
			'to_fieldname'    => 'post_content',
			'callback_method' => 'callback_html'
		);

		// Topic title.
		$this->field_map[] = array(
			'from_tablename' => 'kunena_messages',
			'from_fieldname' => 'subject',
			'to_type'        => 'topic',
			'to_fieldname'   => 'post_title'
		);

		// Topic slug (Clean name to avoid conflicts)
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_messages',
			'from_fieldname'  => 'subject',
			'to_type'         => 'topic',
			'to_fieldname'    => 'post_name',
			'callback_method' => 'callback_slug'
		);

		// Topic parent forum id (If no parent, then 0)
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_messages',
			'from_fieldname'  => 'catid',
			'to_type'         => 'topic',
			'to_fieldname'    => 'post_parent',
			'callback_method' => 'callback_forumid'
		);

		// Topic dates.
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_messages',
			'from_fieldname'  => 'time',
			'to_type'         => 'topic',
			'to_fieldname'    => 'post_date',
			'callback_method' => 'callback_datetime'
		);
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_messages',
			'from_fieldname'  => 'time',
			'to_type'         => 'topic',
			'to_fieldname'    => 'post_date_gmt',
			'callback_method' => 'callback_datetime'
		);
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_messages',
			'from_fieldname'  => 'time',
			'to_type'         => 'topic',
			'to_fieldname'    => 'post_modified',
			'callback_method' => 'callback_datetime'
		);
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_messages',
			'from_fieldname'  => 'time',
			'to_type'         => 'topic',
			'to_fieldname'    => 'post_modified_gmt',
			'callback_method' => 'callback_datetime'
		);
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_messages',
			'from_fieldname'  => 'time',
			'to_type'         => 'topic',
			'to_fieldname'    => '_bbp_last_active_time',
			'callback_method' => 'callback_datetime'
		);

		// Topic status (Open or Closed, Kunena v3.x 0=open & 1=closed)
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_messages',
			'from_fieldname'  => 'locked',
			'to_type'         => 'topic',
			'to_fieldname'    => '_bbp_old_closed_status_id',
			'callback_method' => 'callback_topic_status'
		);

		/** Tags Section ******************************************************/

		/**
		 * Kunena v1.x Forums do not support topic tags out of the box
		 */

		/** Reply Section *****************************************************/

		// Old reply id (Stored in postmeta)
		$this->field_map[] = array(
			'from_tablename' => 'kunena_messages',
			'from_fieldname' => 'id',
			'to_type'        => 'reply',
			'to_fieldname'   => '_bbp_old_reply_id'
		);

		// Reply parent forum id (If no parent, then 0. Stored in postmeta)
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_messages',
			'from_fieldname'  => 'catid',
			'to_type'         => 'reply',
			'to_fieldname'    => '_bbp_forum_id',
			'callback_method' => 'callback_topicid_to_forumid'
		);

		// Reply parent topic id (If no parent, then 0. Stored in postmeta)
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_messages',
			'from_fieldname'  => 'thread',
			'to_type'         => 'reply',
			'to_fieldname'    => '_bbp_topic_id',
			'callback_method' => 'callback_topicid'
		);

		// Reply author ip (Stored in postmeta)
		$this->field_map[] = array(
			'from_tablename' => 'kunena_messages',
			'from_fieldname' => 'ip',
			'to_type'        => 'reply',
			'to_fieldname'   => '_bbp_author_ip'
		);

		// Reply author.
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_messages',
			'from_fieldname'  => 'userid',
			'to_type'         => 'reply',
			'to_fieldname'    => 'post_author',
			'callback_method' => 'callback_userid'
		);

		// Reply content.
		// Note: We join the 'kunena_messages_text' table because 'kunena_messages' table does not include reply content.
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_messages_text',
			'from_fieldname'  => 'message',
			'join_tablename'  => 'kunena_messages',
			'join_type'       => 'INNER',
			'join_expression' => 'ON kunena_messages.id = kunena_messages_text.mesid WHERE kunena_messages.parent != 0',
			'to_type'         => 'reply',
			'to_fieldname'    => 'post_content',
			'callback_method' => 'callback_html'
		);

		// Reply parent topic id (If no parent, then 0)
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_messages',
			'from_fieldname'  => 'thread',
			'to_type'         => 'reply',
			'to_fieldname'    => 'post_parent',
			'callback_method' => 'callback_topicid'
		);

		// Reply dates.
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_messages',
			'from_fieldname'  => 'time',
			'to_type'         => 'reply',
			'to_fieldname'    => 'post_date',
			'callback_method' => 'callback_datetime'
		);
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_messages',
			'from_fieldname'  => 'time',
			'to_type'         => 'reply',
			'to_fieldname'    => 'post_date_gmt',
			'callback_method' => 'callback_datetime'
		);
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_messages',
			'from_fieldname'  => 'time',
			'to_type'         => 'reply',
			'to_fieldname'    => 'post_modified',
			'callback_method' => 'callback_datetime'
		);
		$this->field_map[] = array(
			'from_tablename'  => 'kunena_messages',
			'from_fieldname'  => 'time',
			'to_type'         => 'reply',
			'to_fieldname'    => 'post_modified_gmt',
			'callback_method' => 'callback_datetime'
		);

		/** User Section ******************************************************/

		//Note: We are importing the Joomla User details and the Kunena v1.x user profile details.

		// Store old user id (Stored in usermeta)
		$this->field_map[] = array(
			'from_tablename' => 'users',
			'from_fieldname' => 'id',
			'to_type'        => 'user',
			'to_fieldname'   => '_bbp_old_user_id'
		);

		// Store old user password (Stored in usermeta serialized with salt)
		$this->field_map[] = array(
			'from_tablename'  => 'users',
			'from_fieldname'  => 'password',
			'to_type'         => 'user',
			'to_fieldname'    => '_bbp_password',
			'callback_method' => 'callback_savepass'
		);

		// Store old user salt (This is only used for the SELECT row info for the above password save)
//		$this->field_map[] = array(
//			'from_tablename' => 'user',
//			'from_fieldname' => 'salt',
//			'to_type'        => 'user',
//			'to_fieldname'   => ''
//		);

		// User password verify class (Stored in usermeta for verifying password)
//		$this->field_map[] = array(
//			'to_type'      => 'user',
//			'to_fieldname' => '_bbp_class',
//			'default'      => 'Kunena1'
//		);

		// User name.
		$this->field_map[] = array(
			'from_tablename' => 'users',
			'from_fieldname' => 'username',
			'to_type'        => 'user',
			'to_fieldname'   => 'user_login'
		);

		// User email.
		$this->field_map[] = array(
			'from_tablename' => 'users',
			'from_fieldname' => 'email',
			'to_type'        => 'user',
			'to_fieldname'   => 'user_email'
		);

		// User registered.
		$this->field_map[] = array(
			'from_tablename'  => 'users',
			'from_fieldname'  => 'registerDate',
			'to_type'         => 'user',
			'to_fieldname'    => 'user_registered',
			'callback_method' => 'callback_datetime'
		);
	}