forked from s434650/CatOrNot
55 lines
1.5 KiB
Python
55 lines
1.5 KiB
Python
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class UnsetValue(object):
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"""
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An unset value.
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This is used in situations where a blank value like `None` is acceptable
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usually as the default value of a class variable or function parameter
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(iow, usually when `None` is a valid value.)
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"""
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def __str__(self):
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return '<unset value>'
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def __repr__(self):
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return '<unset value>'
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def __bool__(self):
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return False
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def __nonzero__(self):
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return False
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unset_value = UnsetValue()
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class WebobInputWrapper(object):
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"""
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Wrap a webob MultiDict for use as passing as `formdata` to Field.
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Since for consistency, we have decided in WTForms to support as input a
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small subset of the API provided in common between cgi.FieldStorage,
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Django's QueryDict, and Werkzeug's MultiDict, we need to wrap Webob, the
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only supported framework whose multidict does not fit this API, but is
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nevertheless used by a lot of frameworks.
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While we could write a full wrapper to support all the methods, this will
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undoubtedly result in bugs due to some subtle differences between the
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various wrappers. So we will keep it simple.
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"""
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def __init__(self, multidict):
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self._wrapped = multidict
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def __iter__(self):
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return iter(self._wrapped)
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def __len__(self):
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return len(self._wrapped)
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def __contains__(self, name):
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return (name in self._wrapped)
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def getlist(self, name):
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return self._wrapped.getall(name)
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