launchpad-dev team mailing list archive

[Aaron Bentley <aaron@xxxxxxxxxxxxx>]

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On 11-09-06 08:32 AM, Brad Crittenden wrote:
> To remove the hard-coded names and facilitate this pattern of
> forwarding via lookup I created a new base class called
> ForwardedAuthorization.

This sounds a lot like the DerivedAuthorization class.  Have you seen
that?  The difference is that DerivedAuthorization can consider
multiple sub-objects to determine authorization.  It is used by
ViewSourcePackageRecipe, for example:

class ViewSourcePackageRecipe(DerivedAuthorization):

    permission = "launchpad.View"
    usedfor = ISourcePackageRecipe

    def iter_objects(self):
        return self.obj.getReferencedBranches()

Aaron
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