}
		}

		return $ret;

	}

	/**
	 * Handle updating custom schema data
	 *
	 * @since 3.17.0
	 * @since 3.30.0 Fixed typo preventing fields specifying a custom callback from working.
	 * @since 3.30.0 Array fields will run field values through `sanitize_text_field()` instead of requiring a custom sanitization callback.
	 *
	 * @param string          $type Model type (lesson, quiz, etc...).
	 * @param LLMS_Post_Model $post LLMS_Post_Model object for the model being updated.
	 * @param array           $post_data Assoc array of raw data to update the model with.
	 * @return void
	 */
	public static function update_custom_schemas( $type, $post, $post_data ) {

		$schemas = self::get_custom_schemas();
		if ( empty( $schemas[ $type ] ) ) {
			return;
		}

		$groups = $schemas[ $type ];

		foreach ( $groups as $name => $group ) {

			// Allow 3rd parties to manage their own custom save methods.
			if ( apply_filters( 'llms_builder_update_custom_fields_group_' . $name, false, $post, $post_data, $groups ) ) {
				continue;
			}

			foreach ( $group['fields'] as $fields ) {

				foreach ( $fields as $field ) {

					$keys = array( $field['attribute'] );
					if ( isset( $field['switch_attribute'] ) ) {
						$keys[] = $field['switch_attribute'];
					}

					foreach ( $keys as $attr ) {

						if ( isset( $post_data[ $attr ] ) ) {