Re: [Cheetahtemplate-discuss] inverting name search order

[Brian B. <Bri...@se...>]

I had a similar problem a while ago. Error Catchers can be used, but I
found some bugs in them at the time (I think they were fixed). However,
error catchers are relatively slow, and also only meant for debugging
(apparently).

You can write $!foo in certain cases which is equivalent to
$getVar('foo','') which is what I ended up doing.

However, this syntax can't be used inside expressions, so I can't write:
$myFunction($!foo)
which is a shame. It might be nice if this worked because then $getVar
would only be needed if you wanted to explicitly specify a default value
other than ''. See this thread:
http://sourceforge.net/mailarchive/message.php?msg_id=3D15484950


Brian

> -----Original Message-----
> From: che...@li...
> [mailto:che...@li...] On
Behalf
> Of Alejandro Dubrovsky
> Sent: 29 November 2006 05:36
> To: cheetah
> Subject: [Cheetahtemplate-discuss] inverting name search order
>=20
> Hi,
>=20
> Like probably quite a few people, I'm passing a derivative of a
> dictionary to Cheetah so that variables not found are deemed as None
so
> that I can write $foo instead of $getVar('foo',None).
>=20
> (ie something like this
> 	def __getitem__(self, key):
> 		if key in self:
> 			return self.get(key)
> 		else:
> 			return None
> )
>=20
> The problem is that when I tried to #import some module in the
template,
> Cheetah can't find anything under the imported module because it
> (sensibly IMO) searches the catchall defaulted dictionary that I'm
> passing in first, and since that satisfies the search, it never hits
the
> imported module.
> (eg
> #from time import asctime
> $asctime()
> raises an exception saying that None is not callable
> )
>=20
> My question then is, can something be configured to override the
default
> namespace order so that when doing the variable search the dictionary
> passed in to Cheetah is searched last?  or is the correct way of
> handling this not to use the default dictionary and instead use an
> ErrorCatcher?
>=20
> Thanks,
> alejandro
>=20
>=20
>=20
>
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