buddypress-biography-sync.php

<?php /*
--------------------------------------------------------------------------------
Plugin Name: BuddyPress Biography Sync
Description: Keeps a BuddyPress xProfile field in sync with the WordPress user description field.
Author: Christian Wach
Version: 0.1
Author URI: http://haystack.co.uk
--------------------------------------------------------------------------------
*/



/**
 * A class that encapsulates sync functionality between a BuddyPress xProfile
 * "Biography" field and the WordPress "Biography" field.
 *
 * @since 0.1
 */
class BuddyPress_Biography_Sync {

	/**
	 * "Biography" xProfile field ID.
	 *
	 * Set this to the ID of the xProfile field you have created for "Biography".
	 *
	 * @since 0.1
	 * @access public
	 * @var array $biography_id The ID of the "Biography" field
	 */
	public $biography_id = 3;

	/**
	 * Constructor.
	 *
	 * @since 0.1
	 */
	public function __construct() {

		// register hooks on BuddyPress loaded
		add_action( 'bp_init', array( $this, 'register_hooks' ) );

	}

	/**
	 * Register hooks on BuddyPress init.
	 *
	 * @since 0.1
	 */
	public function register_hooks() {

		// populate xProfile field on user registration and update by admins
		add_action( 'updated_user_meta', array( $this, 'update_buddypress' ), 30, 4 );

		// sync xProfile content to WordPress when Member Profile is saved
		add_action( 'xprofile_updated_profile', array( $this, 'update_wordpress' ), 9, 3 );
		add_action( 'bp_core_signup_user', array( $this, 'update_wordpress' ), 9, 3 );
		add_action( 'bp_core_activated_user', array( $this, 'update_wordpress' ), 9, 3 );

	}

	/**
	 * Intercept BuddyPress xProfile data on save and update WordPress user meta.
	 *
	 * @since 0.1
	 *
	 * @param int $user_id The WordPress user ID
	 * @param array $posted_field_ids The array of submitted xProfile fields
	 * @param bool $errors Any errors
	 */
	public function update_wordpress( $user_id = 0, $posted_field_ids, $errors ) {

		// make sure we have a user
		if ( empty( $user_id ) ) {
			$user_id = bp_loggedin_user_id();
		}

		// bail if we don't receive a user ID
		if ( empty( $user_id ) ) return;

		// bail if not the "Biography" field ID
		if ( ! in_array( $this->biography_id, $posted_field_ids ) ) return;

		// get the field's content
		$content = xprofile_get_field_data( $this->biography_id, $user_id );

		// prevent recursion
		remove_action( 'updated_user_meta', array( $this, 'update_buddypress' ), 30 );

		// write to user meta
		update_user_meta( $user_id, 'description', $content );

		// re-add hook
		add_action( 'updated_user_meta', array( $this, 'update_buddypress' ), 30, 4 );

	}

	/**
	 * Intercept WordPress biography data updates and sync to an xProfile field.
	 *
	 * @since 0.1
	 *
	 * @param int $meta_id The ID of updated metadata entry.
	 * @param int $user_id The WordPress user ID.
	 * @param string $meta_key The Meta key.
	 * @param mixed $meta_value The Meta value.
	 */
	public function update_buddypress( $meta_id, $user_id, $meta_key, $meta_value ) {

		// bail if not description field
		if ( $meta_key != 'description' ) return;

		// save  content to "about" xProfile field
		xprofile_set_field_data( $this->biography_id, $user_id, $meta_value );

	}

}

global $bp_bio_sync;
$bp_bio_sync = new BuddyPress_Biography_Sync;