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"""Module to handle features that are not implemented yet."""
_IGNORED_FEATURES = {
'array_filters': False,
'collation': False,
'let': False,
'session': False,
}
def _ensure_ignorable_feature(feature):
if feature not in _IGNORED_FEATURES:
raise KeyError(
'%s is not an error that can be ignored: maybe it has been implemented in Mongomock. '
'Here is the list of features that can be ignored: %s' % (
feature, _IGNORED_FEATURES.keys()))
def ignore_feature(feature):
"""Ignore a feature instead of raising a NotImplementedError."""
_ensure_ignorable_feature(feature)
_IGNORED_FEATURES[feature] = True
def warn_on_feature(feature):
"""Rasie a NotImplementedError the next times a feature is used."""
_ensure_ignorable_feature(feature)
_IGNORED_FEATURES[feature] = False
def raise_for_feature(feature, reason):
_ensure_ignorable_feature(feature)
if _IGNORED_FEATURES[feature]:
return False
raise NotImplementedError(reason)
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