[Newbies] Best practice for very simple objects
m.rueger at acm.org
Tue Jun 26 13:45:26 UTC 2007
Norbert Hartl wrote:
> At first I created a lot of classes like AdminRole,
> MemberRole, CreatePermission, ModifyPermission etc.
> I used the class objects for this. These only carry
> some state like index, label. The role objects also
> carry a set of permissions.
I'm a big fan of instances :-)
Have one Permission class, one for Role etc.
Then you can have instance creation methods (maybe via a cache)
Permission modify, Role admin
Internally you could actually use (symbol) names
^Permission new name: #modify
self cache at: #modify ifAbsentPut: [...]
This would make it easier to extend the role and permission model later
> anAction requires: Modifypermission
anAction requires: Permission modify
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