e80144e9f2
No change required to upgrade to multiple databases. Aliases are used to describe the database and these can be manually registered or fall through to a default alias using connect. Made get_connection and get_db first class members of the connection class. Old style _get_connection and _get_db still supported. Refs: #84 #87 #93 #215
60 lines
1.7 KiB
Python
60 lines
1.7 KiB
Python
from mongoengine.connection import get_db
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class query_counter(object):
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""" Query_counter contextmanager to get the number of queries. """
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def __init__(self):
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""" Construct the query_counter. """
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self.counter = 0
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self.db = get_db()
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def __enter__(self):
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""" On every with block we need to drop the profile collection. """
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self.db.set_profiling_level(0)
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self.db.system.profile.drop()
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self.db.set_profiling_level(2)
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return self
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def __exit__(self, t, value, traceback):
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""" Reset the profiling level. """
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self.db.set_profiling_level(0)
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def __eq__(self, value):
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""" == Compare querycounter. """
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return value == self._get_count()
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def __ne__(self, value):
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""" != Compare querycounter. """
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return not self.__eq__(value)
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def __lt__(self, value):
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""" < Compare querycounter. """
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return self._get_count() < value
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def __le__(self, value):
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""" <= Compare querycounter. """
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return self._get_count() <= value
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def __gt__(self, value):
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""" > Compare querycounter. """
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return self._get_count() > value
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def __ge__(self, value):
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""" >= Compare querycounter. """
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return self._get_count() >= value
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def __int__(self):
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""" int representation. """
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return self._get_count()
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def __repr__(self):
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""" repr query_counter as the number of queries. """
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return u"%s" % self._get_count()
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def _get_count(self):
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""" Get the number of queries. """
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count = self.db.system.profile.find().count() - self.counter
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self.counter += 1
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return count
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