code: func (c *NamedWorkItemsController) Show(ctx *app.ShowNamedWorkItemsContext) error {
  	err := application.Transactional(c.db, func(appl application.Application) error {
  		wiID, _, err := appl.WorkItems().LookupIDByNamedSpaceAndNumber(ctx, ctx.UserName, ctx.SpaceName, ctx.WiNumber)
  		if err != nil {
  			return errs.Wrapf(err, "Fail to load work item with number %v in %s/%s", ctx.WiNumber, ctx.UserName, ctx.SpaceName)
  		}
  		ctx.ResponseData.Header().Set("Location", rest.AbsoluteURL(ctx.Request, app.WorkitemHref(wiID)))
  		return ctx.TemporaryRedirect()
  	})
  	if err != nil {
  		return jsonapi.JSONErrorResponse(ctx, err)
  	}
  	return nil
  }
docs: // Show shows a work item from the given named space (ie, space name along with owner's username) and its number