[Cheetahtemplate-discuss] Re: How do I define a stylesheet when extending Cheetah.Templates.SkeletonPage?

[Paul M. <pf_...@ya...>]

Chris Gahan <ch...@il...> writes:

>> but the attributes are set on the class, and _SkeletonPage overrides
>> them in the __init__().
>> 
>> I tried using #set $self._stylesheets, but that didn't work either (I
>> suspect that, as my template is then implementing writeBody(), the
>> attribute assignments are happening too late, as by the time that
>> writeBody is called, stylesheetTags() has already been called...).
>> 
>> Can anyone explain what is the correct way of doing this?
>
> I'm not sure if there's already a solution for this, but if not, a good way 
> to solve it would be to have the stylesheetTags() function check if the 
> "self" instance is a subclass of SkeletonPage, and if it's a subclass, to 
> merge the two dicts.

I can think of a few ways I could do this if I were writing my own
template like SkeletonPage. What I was really asking was how the
existing SkeletonPage expects subclasses to do this. (AFAICT, the
current code doesn't offer an easy way of doing this).

On a related but more general note, I'm not sure how you'd define
attributes to be set on the *instance* at initialisation time. As far
as I can see, cheetah offers ways of doing the equivalent of setting
class attributes:

    class MyPage:
        attr1 = 'whatever'
        ...

by using

    #attr $attr1 = 'whatever'

and setting instance attributes in a method:

    class MyPage:
        def respond(self):
            self.attr2 = 'another'

by using

    #set $self.attr2 = 'another'

But to get the instance attribute set at creation time, I need to
override __init__() in what feels like a dreadfully low-level way:

    ## There are lots of bits here I don't know how to get right...
    #def __init__(??? *args, **kw ???)
        super(???, self).__init__(??? *args **kw ???)
        #set $self.attr3 = 'yet another'
    #end def

Is there no better way of doing this?

Thanks,
Paul.
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