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"""
This module contains some fake classes and functions to
calm the rest of the code base. Or provide super minimal
implementations.
Currently:
- ObjectId "class": It's a function mostly doing
int(init_arg) to convert string primary keys into
integer primary keys.
- InvalidId exception
- DESCENDING "constant"
"""
DESCENDING = object() # a unique object for this "constant"
class InvalidId(Exception):
pass
def ObjectId(value=None):
if value is None:
return None
try:
return int(value)
except ValueError:
raise InvalidId("%r is an invalid id" % value)
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