@Nightjar All good.

@dhensby The documentation says: "If you're using the cms module with and dealing with Page objects then for your custom Page Type controllers you would extend ContentController or Page_Controller. You don't need to define the routes value as the cms handles routing." So this sould not be necessary in my case.

So this sould not be necessary in my case.

This is correct.

When trying to load the function directly, the page says, that the page is not public yet and I have to log in as someone else to see the unpublished content.

Did you try to publish the page (again)? And maybe check the settings tab if you excluded the admin user.

@knsqnt Indeed the CMS handles routing, but only if your action is request at the end of the page itself (as opposed to site.com/Page_Controller). The * routing that automatically loads a controller of the request name was removed in... 4.0 (so not yet for stable releases - but check you're using 3.1 rather than master).

@dhensby
https://github.com/silverstripe/silverstripe-framework/blob/3.1/_config/routes.yml#L18

Ok, Nightjar, I don't understand that. What do you mean with "at the end of the page"?

This is my framework/_config/routes.yml:

---
Name: rootroutes
Before: '*'
---
Director:
  rules:
    '': 'Controller'
---
Name: coreroutes
Before: '*'
After:
  - '#rootroutes'
  - '#modelascontrollerroutes'
---
Director:
  rules:
    'Security//$Action/$ID/$OtherID': 'Security'
    '$Controller//$Action/$ID/$OtherID':  '*'
    'dev': 'DevelopmentAdmin'
    'interactive': 'SapphireREPL'
---
Name: adminroutes
Before: '*'
After:
  - '#rootroutes'
  - '#coreroutes'
  - '#modelascontrollerroutes'
---
Director:
  rules:
    'admin': 'AdminRootController'

Looks good?

Another question: How cann I call a controller function via the URL? I installed a clean version of SilverStripe an it doesn't even work with a public function - added to allowed_actions - inside the Page_Controller.

Hm, seems like it just doesn't work locally. Are there any Apache settings I have to worry about?

Heureka! My VirtualHost was not configured correctly!

This changed everything:

<Directory /Users/knsqnt/Sites/usedsoft-newsletter/public/>
    Options Indexes FollowSymLinks MultiViews
    AllowOverride All
    Order allow,deny
    allow from all
</Directory>

Thanks anyway for all you time! Really appreciated it!

Cheers, Mario