[Zope3-Users] practical example of migrating from services to utilities

[Duncan McGreggor]

Hey all,

I just wanted to check to make sure I was doing this right, and if so, 
provide a resource that would turn up on subsequent googling. This 
example involves the getting menus items with the getService/getUtility 
functions and is taken from Philip's worldcookery example code.

Here's the pertinent zcml (worldcookery/browser/configure.zcml):

   <browser:menu
       id="alternate_views"
       title="Menu containing a list of alternative views for an object"
       />

   <browser:addMenuItem
       title="[label-recipe] Recipe"
       class="worldcookery.recipe.Recipe"
       permission="worldcookery.EditRecipes"
       view="AddRecipe.html"
       />

Here's the original code (worldcookery/browser/recipe.py):

   def alternateViews(self):
     menu_service = zapi.getService(servicenames.BrowserMenu)
     menu_id = 'alternate_views'
     return menu_service.getMenu(menu_id, self.context, self.request)

Here's the modified example that I'd want to check if I am doing 
correctly:

   def alternateViews(self):
     browser_menu = zapi.getUtility(IBrowserMenu, 'alternate_views')
     return browser_menu.getMenuItems(self.context, self.request)

Am I doing this properly?

Thanks!

d