[Twisted-Python] IResource and http.Site()

Jon Parise jon at csh.rit.edu
Mon Aug 14 22:48:24 EDT 2006


Jon Parise wrote:
> Jon Parise wrote:
>> I'm relatively new to Twisted, so apologies if I'm missing something
>> obvious.  I'm using Twisted 2.4, and I'm trying to use twisted.web 
>> with my own resource implementation.
>>
>> It looks like my options are to either derive from http.Resource or 
>> implement the http.IResource interface directly.  I've decided to 
>> start with the latter.
>>
>> The IResource interface declares three methods:
>>
>>     getChildWithDefault(self, name, request)
>>     putChild(self, path, child)
>>     render(self, request)
>>
>> However, parts of http.Site() (such as getResourceFor()) expect my 
>> object to offer additional methods (such as getChildForRequest()) 
>> which are not part of the interface.
>>
>> My question is therefore: Is http.Site() only compatible with Resource 
>> (and not IResource), or should the IResource interface include some 
>> additional methods, such as getChildForRequest()?
> 
> Or perhaps Door Number 3:
> 
> Should http.Site() be updated to use the module-level 
> http.getChildForRequest() instead of Resource.getChildForRequest(), as 
> suggested by this code in Resource.getChildForRequest():
> 
>      def getChildForRequest(self, request):
>          import warnings
>          warnings.warn("Please use module level getChildForRequest.", 
> DeprecationWarning, 2)
>          return getChildForRequest(self, request)
> 

... which is what it's actually doing.  I'm so sorry - I misread 
resource.getChildForRequest() for Resource.getChildForRequest().  My 
code is causing a different but related error, and I went down the wrong 
path.

Apologies for jumping the gun on this one!  It must be the heat. =)

-- 
Jon Parise (jon of csh.rit.edu)  ::  http://www.csh.rit.edu/~jon/




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