/usr/share/pyshared/bitfield/query.py is in python-django-bitfield 1.6.4-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 | class BitQueryLookupWrapper(object):
def __init__(self, alias, column, bit):
self.table_alias = alias
self.column = column
self.bit = bit
def as_sql(self, qn, connection=None):
"""
Create the proper SQL fragment. This inserts something like
"(T0.flags & value) != 0".
This will be called by Where.as_sql()
"""
if self.bit:
return ("(%s.%s | %d)" % (qn(self.table_alias), qn(self.column), self.bit.mask),
[])
return ("(%s.%s & %d)" % (qn(self.table_alias), qn(self.column), self.bit.mask),
[])
class BitQuerySaveWrapper(BitQueryLookupWrapper):
def as_sql(self, qn, connection):
"""
Create the proper SQL fragment. This inserts something like
"(T0.flags & value) != 0".
This will be called by Where.as_sql()
"""
engine = connection.settings_dict['ENGINE'].rsplit('.', -1)[-1]
if engine.startswith('postgres'):
XOR_OPERATOR = '#'
elif engine.startswith('sqlite'):
raise NotImplementedError
else:
XOR_OPERATOR = '^'
if self.bit:
return ("%s.%s | %d" % (qn(self.table_alias), qn(self.column), self.bit.mask),
[])
return ("%s.%s %s %d" % (qn(self.table_alias), qn(self.column), XOR_OPERATOR, self.bit.mask),
[])
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