BP_XProfile_ProfileData::exists()

	public function exists() {
		global $wpdb;

		// Check cache first.
		$cache_key = "{$this->user_id}:{$this->field_id}";
		$cached    = wp_cache_get( $cache_key, 'bp_xprofile_data' );

		if ( $cached && ! empty( $cached->id ) ) {
			$retval = true;
		} else {
			$bp = buddypress();
			$retval = $wpdb->get_row( $wpdb->prepare( "SELECT id FROM {$bp->profile->table_name_data} WHERE user_id = %d AND field_id = %d", $this->user_id, $this->field_id ) );
		}

		/**
		 * Filters whether or not data already exists for the user.
		 *
		 * @since BuddyPress 1.2.7
		 *
		 * @param bool                    $retval Whether or not data already exists.
		 * @param BP_XProfile_ProfileData $this   Instance of the current BP_XProfile_ProfileData class.
		 */
		return apply_filters_ref_array( 'xprofile_data_exists', array( (bool)$retval, $this ) );
	}