def quote_value(self, value):
try:
value = _sqlite3.adapt(value)
except _sqlite3.ProgrammingError:
pass
# Manual emulation of SQLite parameter quoting
if isinstance(value, type(True)):
return str(int(value))
elif isinstance(value, (Decimal, float)):
return str(value)
elif isinstance(value, six.integer_types):
return str(value)
elif isinstance(value, six.string_types):
return "'%s'" % six.text_type(value).replace("\'", "\'\'")
elif value is None:
return "NULL"
elif isinstance(value, (bytes, bytearray, six.memoryview)):
# Bytes are only allowed for BLOB fields, encoded as string
# literals containing hexadecimal data and preceded by a single "X"
# character:
# value = b'\x01\x02' => value_hex = b'0102' => return X'0102'
value = bytes(value)
hex_encoder = codecs.getencoder('hex_codec')
value_hex, _length = hex_encoder(value)
# Use 'ascii' encoding for b'01' => '01', no need to use force_text here.
return "X'%s'" % value_hex.decode('ascii')
else:
raise ValueError("Cannot quote parameter value %r of type %s" % (value, type(value)))
def quote_value(self, value):
# Inner import to allow nice failure for backend if not present
import _sqlite3
try:
value = _sqlite3.adapt(value)
except _sqlite3.ProgrammingError:
pass
# Manual emulation of SQLite parameter quoting
if isinstance(value, type(True)):
return str(int(value))
elif isinstance(value, six.integer_types):
return str(value)
elif isinstance(value, six.string_types):
return '"%s"' % six.text_type(value)
elif value is None:
return "NULL"
else:
raise ValueError("Cannot quote parameter value %r" % value)
def quote_parameter(self, value):
# Inner import to allow nice failure for backend if not present
import _sqlite3
try:
value = _sqlite3.adapt(value)
except _sqlite3.ProgrammingError:
pass
# Manual emulation of SQLite parameter quoting
if isinstance(value, type(True)):
return str(int(value))
elif isinstance(value, six.integer_types):
return str(value)
elif isinstance(value, six.string_types):
return '"%s"' % six.text_type(value)
elif value is None:
return "NULL"
else:
raise ValueError("Cannot quote parameter value %r" % value)