BP_XProfile_User_Admin::user_admin_load( string $doaction = '', int $user_id, array $request = array(), string $redirect_to = '' )

	public function user_admin_load( $doaction = '', $user_id = 0, $request = array(), $redirect_to = '' ) {

		// Eventually delete avatar.
		if ( 'delete_avatar' === $doaction ) {

			check_admin_referer( 'delete_avatar' );

			$redirect_to = remove_query_arg( '_wpnonce', $redirect_to );

			if ( bp_core_delete_existing_avatar( array( 'item_id' => $user_id ) ) ) {
				$redirect_to = add_query_arg( 'updated', 'avatar', $redirect_to );
			} else {
				$redirect_to = add_query_arg( 'error', 'avatar', $redirect_to );
			}

			bp_core_redirect( $redirect_to );

		} elseif ( isset( $_POST['field_ids'] ) ) {
			// Update profile fields.
			// Check the nonce.
			check_admin_referer( 'edit-bp-profile_' . $user_id );

			// Check we have field ID's.
			if ( empty( $_POST['field_ids'] ) ) {
				$redirect_to = add_query_arg( 'error', '1', $redirect_to );
				bp_core_redirect( $redirect_to );
			}

			/**
			 * Unlike front-end edit-fields screens, the wp-admin/profile
			 * displays all groups of fields on a single page, so the list of
			 * field ids is an array gathering for each group of fields a
			 * distinct comma separated list of ids.
			 *
			 * As a result, before using the wp_parse_id_list() function, we
			 * must ensure that these ids are "merged" into a single comma
			 * separated list.
			 */
			$merge_ids = join( ',', $_POST['field_ids'] );

			// Explode the posted field IDs into an array so we know which fields have been submitted.
			$posted_field_ids = wp_parse_id_list( $merge_ids );
			$is_required      = array();

			// Loop through the posted fields formatting any datebox values then validate the field.
			foreach ( (array) $posted_field_ids as $field_id ) {
				bp_xprofile_maybe_format_datebox_post_data( $field_id );

				$is_required[ $field_id ] = xprofile_check_is_required_field( $field_id ) && ! bp_current_user_can( 'bp_moderate' );
				if ( $is_required[ $field_id ] && empty( $_POST['field_' . $field_id ] ) ) {
					$redirect_to = add_query_arg( 'error', '2', $redirect_to );
					bp_core_redirect( $redirect_to );
				}

				// Validate xprofile
				if ( $message = xprofile_validate_field( $field_id, $_POST[ 'field_' . $field_id ], $user_id ) ) {
					$redirect_to = add_query_arg( [
						'error' => '4',
						'message' => urlencode($message)
					], $redirect_to );

					bp_core_redirect( $redirect_to );
				}
			}

			// Set the errors var.
			$errors = false;

			// Now we've checked for required fields, let's save the values.
			$old_values = $new_values = array();
			foreach ( (array) $posted_field_ids as $field_id ) {

				/*
				 * Certain types of fields (checkboxes, multiselects) may come
				 * through empty. Save them as an empty array so that they don't
				 * get overwritten by the default on the next edit.
				 */
				$value = isset( $_POST['field_' . $field_id] ) ? $_POST['field_' . $field_id] : '';

				$visibility_level = ! empty( $_POST['field_' . $field_id . '_visibility'] ) ? $_POST['field_' . $field_id . '_visibility'] : 'public';
				/*
				 * Save the old and new values. They will be
				 * passed to the filter and used to determine
				 * whether an activity item should be posted.
				 */
				$old_values[ $field_id ] = array(
					'value'      => xprofile_get_field_data( $field_id, $user_id ),
					'visibility' => xprofile_get_field_visibility_level( $field_id, $user_id ),
				);

				// Update the field data and visibility level.
				xprofile_set_field_visibility_level( $field_id, $user_id, $visibility_level );
				$field_updated = xprofile_set_field_data( $field_id, $user_id, $value, $is_required[ $field_id ] );
				$value         = xprofile_get_field_data( $field_id, $user_id );

				$new_values[ $field_id ] = array(
					'value'      => $value,
					'visibility' => xprofile_get_field_visibility_level( $field_id, $user_id ),
				);

				if ( ! $field_updated ) {
					$errors = true;
				} else {

					/**
					 * Fires after the saving of each profile field, if successful.
					 *
					 * @since BuddyPress 1.1.0
					 *
					 * @param int    $field_id ID of the field being updated.
					 * @param string $value    Value that was saved to the field.
					 */
					do_action( 'xprofile_profile_field_data_updated', $field_id, $value );
				}
			}

			/**
			 * Fires after all XProfile fields have been saved for the current profile.
			 *
			 * @since BuddyPress 1.0.0
			 * @since BuddyPress 2.6.0 Added $old_values and $new_values parameters.
			 *
			 * @param int   $user_id          ID for the user whose profile is being saved.
			 * @param array $posted_field_ids Array of field IDs that were edited.
			 * @param bool  $errors           Whether or not any errors occurred.
			 * @param array $old_values       Array of original values before update.
			 * @param array $new_values       Array of newly saved values after update.
			 */
			do_action( 'xprofile_updated_profile', $user_id, $posted_field_ids, $errors, $old_values, $new_values );

			// Set the feedback messages.
			if ( ! empty( $errors ) ) {
				$redirect_to = add_query_arg( 'error',   '3', $redirect_to );
			} else {
				$redirect_to = add_query_arg( 'updated', '1', $redirect_to );
			}

			bp_core_redirect( $redirect_to );
		}
	}