[Chandler-dev] Re: Defining a sort order for schema.Enumerations

[Phillip J. Eby]

At 03:58 PM 6/19/2006 -0700, Bryan Stearns wrote:
>class EnumerationClass(Activator):
>    def __init__(cls,name,bases,cdict):
>        [...]
>        cls.ordering = dict((v, i) for (i, v) in enumerate(cls.values))
>
>Or can you suggest a better way to accomplish this?

Actually, this seems fine to me.  In your shoes I probably would've just 
changed the enumeration names to "01 now", "02 later", "03 done", which is 
a cheap hack of course but very easy to do.  :)

However, the above seems like a perfectly fine way of doing it.  If you'd 
like to add it officially, though, you need to update 
application/parcel-schema-guide.txt to explain the feature by example in 
the section on enumerations, which will as a side effect provide a test for 
the feature.  Make sure that you put an error in your example to verify 
that the example is in fact run when you run the tests.  (The corresponding 
test .py file is application/tests/TestSchema.py.)