def prepare(cls, value, type_code=type_codes.CHAR):
pfield = struct.pack('b', type_code)
if value is None:
# length indicator
pfield += struct.pack('B', 255)
else:
if not isinstance(value, string_types):
# Value is provided e.g. as integer, but a string is actually required. Try proper casting into string:
value = text_type(value)
value = value.encode('cesu-8')
length = len(value)
# length indicator
if length <= 245:
pfield += struct.pack('B', length)
elif length <= 32767:
pfield += struct.pack('B', 246)
pfield += struct.pack('H', length)
else:
pfield += struct.pack('B', 247)
pfield += struct.pack('I', length)
pfield += value
return pfield
def prepare(cls, value, type_code=type_codes.CHAR):
pfield = struct.pack('b', type_code)
if value is None:
# length indicator
pfield += struct.pack('B', 255)
else:
if not isinstance(value, string_types):
# Value is provided e.g. as integer, but a string is actually required. Try proper casting into string:
value = text_type(value)
value = value.encode('cesu-8')
length = len(value)
# length indicator
if length <= 245:
pfield += struct.pack('B', length)
elif length <= 32767:
pfield += struct.pack('B', 246)
pfield += struct.pack('H', length)
else:
pfield += struct.pack('B', 247)
pfield += struct.pack('I', length)
pfield += value
return pfield
def to_sql(cls, _):
return text_type("NULL")
def to_sql(cls, value):
return text_type(value)
def to_sql(cls, _):
return text_type("NULL")
def to_sql(cls, value):
return text_type(value)