/usr/lib/python3/dist-packages/sqlobject/converters.py is in python3-sqlobject 3.1.0+dfsg-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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import datetime
from decimal import Decimal
import time
import sys
from .compat import PY2, buffer_type
if PY2:
from types import ClassType, InstanceType, NoneType
else:
# Use suitable aliases for now
ClassType = type
NoneType = type(None)
# This is may not be what we want in all cases, but will do for now
InstanceType = object
try:
from mx.DateTime import DateTimeType, DateTimeDeltaType
except ImportError:
try:
from DateTime import DateTimeType, DateTimeDeltaType
except ImportError:
DateTimeType = None
DateTimeDeltaType = None
try:
import Sybase
NumericType = Sybase.NumericType
except ImportError:
NumericType = None
########################################
# Quoting
########################################
sqlStringReplace = [
("'", "''"),
('\\', '\\\\'),
('\000', '\\0'),
('\b', '\\b'),
('\n', '\\n'),
('\r', '\\r'),
('\t', '\\t'),
]
class ConverterRegistry:
def __init__(self):
self.basic = {}
self.klass = {}
def registerConverter(self, typ, func):
if type(typ) is ClassType:
self.klass[typ] = func
else:
self.basic[typ] = func
if PY2:
def lookupConverter(self, value, default=None):
if type(value) is InstanceType:
# lookup on klasses dict
return self.klass.get(value.__class__, default)
return self.basic.get(type(value), default)
else:
def lookupConverter(self, value, default=None):
# python 3 doesn't have classic classes, so everything's
# in self.klass due to comparison order in registerConvertor
return self.klass.get(value.__class__, default)
converters = ConverterRegistry()
registerConverter = converters.registerConverter
lookupConverter = converters.lookupConverter
def StringLikeConverter(value, db):
if isinstance(value, array):
try:
value = value.tounicode()
except ValueError:
value = value.tostring()
elif isinstance(value, buffer_type):
value = str(value)
if db in ('mysql', 'postgres', 'rdbhost'):
for orig, repl in sqlStringReplace:
value = value.replace(orig, repl)
elif db in ('sqlite', 'firebird', 'sybase', 'maxdb', 'mssql'):
value = value.replace("'", "''")
else:
assert 0, "Database %s unknown" % db
if db in ('postgres', 'rdbhost') and ('\\' in value):
return "E'%s'" % value
return "'%s'" % value
registerConverter(str, StringLikeConverter)
if PY2:
# noqa for flake8 & python3
registerConverter(unicode, StringLikeConverter) # noqa
registerConverter(array, StringLikeConverter)
if PY2:
registerConverter(buffer_type, StringLikeConverter)
else:
registerConverter(memoryview, StringLikeConverter)
def IntConverter(value, db):
return repr(int(value))
registerConverter(int, IntConverter)
def LongConverter(value, db):
return str(value)
if sys.version_info[0] < 3:
# noqa for flake8 & python3
registerConverter(long, LongConverter) # noqa
if NumericType:
registerConverter(NumericType, IntConverter)
def BoolConverter(value, db):
if db in ('postgres', 'rdbhost'):
if value:
return "'t'"
else:
return "'f'"
else:
if value:
return '1'
else:
return '0'
registerConverter(bool, BoolConverter)
def FloatConverter(value, db):
return repr(value)
registerConverter(float, FloatConverter)
if DateTimeType:
def mxDateTimeConverter(value, db):
return "'%s'" % value.strftime("%Y-%m-%d %H:%M:%S")
registerConverter(DateTimeType, mxDateTimeConverter)
def mxTimeConverter(value, db):
return "'%s'" % value.strftime("%H:%M:%S")
registerConverter(DateTimeDeltaType, mxTimeConverter)
def NoneConverter(value, db):
return "NULL"
registerConverter(NoneType, NoneConverter)
def SequenceConverter(value, db):
return "(%s)" % ", ".join([sqlrepr(v, db) for v in value])
registerConverter(tuple, SequenceConverter)
registerConverter(list, SequenceConverter)
registerConverter(dict, SequenceConverter)
registerConverter(set, SequenceConverter)
registerConverter(frozenset, SequenceConverter)
if hasattr(time, 'struct_time'):
def StructTimeConverter(value, db):
return time.strftime("'%Y-%m-%d %H:%M:%S'", value)
registerConverter(time.struct_time, StructTimeConverter)
def DateTimeConverter(value, db):
return "'%04d-%02d-%02d %02d:%02d:%02d'" % (
value.year, value.month, value.day,
value.hour, value.minute, value.second)
def DateTimeConverterMS(value, db):
return "'%04d-%02d-%02d %02d:%02d:%02d.%06d'" % (
value.year, value.month, value.day,
value.hour, value.minute, value.second, value.microsecond)
registerConverter(datetime.datetime, DateTimeConverterMS)
def DateConverter(value, db):
return "'%04d-%02d-%02d'" % (value.year, value.month, value.day)
registerConverter(datetime.date, DateConverter)
def TimeConverter(value, db):
return "'%02d:%02d:%02d'" % (value.hour, value.minute, value.second)
def TimeConverterMS(value, db):
return "'%02d:%02d:%02d.%06d'" % (value.hour, value.minute,
value.second, value.microsecond)
registerConverter(datetime.time, TimeConverterMS)
def DecimalConverter(value, db):
return value.to_eng_string()
registerConverter(Decimal, DecimalConverter)
def TimedeltaConverter(value, db):
return """INTERVAL '%d days %d seconds'""" % \
(value.days, value.seconds)
registerConverter(datetime.timedelta, TimedeltaConverter)
def sqlrepr(obj, db=None):
try:
reprFunc = obj.__sqlrepr__
except AttributeError:
converter = lookupConverter(obj)
if converter is None:
raise ValueError("Unknown SQL builtin type: %s for %s" %
(type(obj), repr(obj)))
return converter(obj, db)
else:
return reprFunc(db)
def quote_str(s, db):
if db in ('postgres', 'rdbhost') and ('\\' in s):
return "E'%s'" % s
return "'%s'" % s
def unquote_str(s):
if s[:2].upper().startswith("E'") and s.endswith("'"):
return s[2:-1]
elif s.startswith("'") and s.endswith("'"):
return s[1:-1]
else:
return s
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