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35 lines
1.4 KiB
Python
35 lines
1.4 KiB
Python
"""Mixin classes that provide a determine_method(request) function to determine the HTTP
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method that a given request should be treated as. We use this more generic behaviour to
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allow for overloaded methods in POST forms.
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See Richardson & Ruby's RESTful Web Services for justification.
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"""
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class MethodMixin(object):
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"""Base class for all MethodMixin classes, which simply defines the interface they provide."""
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def determine_method(self, request):
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"""Simply return GET, POST etc... as appropriate."""
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raise NotImplementedError()
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class StandardMethodMixin(MethodMixin):
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"""Provide for standard HTTP behaviour, with no overloaded POST."""
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def determine_method(self, request):
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"""Simply return GET, POST etc... as appropriate."""
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return request.method.upper()
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class OverloadedPOSTMethodMixin(MethodMixin):
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"""Provide for overloaded POST behaviour."""
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"""The name to use for the method override field in the POST form."""
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METHOD_PARAM = '_method'
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def determine_method(self, request):
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"""Simply return GET, POST etc... as appropriate, allowing for POST overloading
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by setting a form field with the requested method name."""
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method = request.method.upper()
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if method == 'POST' and self.METHOD_PARAM and request.POST.has_key(self.METHOD_PARAM):
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method = request.POST[self.METHOD_PARAM].upper()
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return method |