Python sqlite3.adapt() Examples
The following are 5
code examples of sqlite3.adapt().
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Example #1
| Source File: schema.py From bioforum with MIT License | 5 votes |
|
def quote_value(self, value):
# The backend "mostly works" without this function and there are use
# cases for compiling Python without the sqlite3 libraries (e.g.
# security hardening).
try:
import sqlite3
value = sqlite3.adapt(value)
except ImportError:
pass
except sqlite3.ProgrammingError:
pass
# Manual emulation of SQLite parameter quoting
if isinstance(value, type(True)):
return str(int(value))
elif isinstance(value, (Decimal, float, int)):
return str(value)
elif isinstance(value, str):
return "'%s'" % value.replace("\'", "\'\'")
elif value is None:
return "NULL"
elif isinstance(value, (bytes, bytearray, 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)))
Example #2
| Source File: schema.py From Hands-On-Application-Development-with-PyCharm with MIT License | 5 votes |
|
def quote_value(self, value):
# The backend "mostly works" without this function and there are use
# cases for compiling Python without the sqlite3 libraries (e.g.
# security hardening).
try:
import sqlite3
value = sqlite3.adapt(value)
except ImportError:
pass
except sqlite3.ProgrammingError:
pass
# Manual emulation of SQLite parameter quoting
if isinstance(value, bool):
return str(int(value))
elif isinstance(value, (Decimal, float, int)):
return str(value)
elif isinstance(value, str):
return "'%s'" % value.replace("\'", "\'\'")
elif value is None:
return "NULL"
elif isinstance(value, (bytes, bytearray, memoryview)):
# Bytes are only allowed for BLOB fields, encoded as string
# literals containing hexadecimal data and preceded by a single "X"
# character.
return "X'%s'" % value.hex()
else:
raise ValueError("Cannot quote parameter value %r of type %s" % (value, type(value)))
Example #3
| Source File: schema.py From python with Apache License 2.0 | 5 votes |
|
def quote_value(self, value):
# The backend "mostly works" without this function and there are use
# cases for compiling Python without the sqlite3 libraries (e.g.
# security hardening).
try:
import sqlite3
value = sqlite3.adapt(value)
except ImportError:
pass
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)))
Example #4
| Source File: schema.py From openhgsenti with Apache License 2.0 | 5 votes |
|
def quote_value(self, value):
# The backend "mostly works" without this function and there are use
# cases for compiling Python without the sqlite3 libraries (e.g.
# security hardening).
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, (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)))
Example #5
| Source File: schema.py From python2017 with MIT License | 5 votes |
|
def quote_value(self, value):
# The backend "mostly works" without this function and there are use
# cases for compiling Python without the sqlite3 libraries (e.g.
# security hardening).
try:
import sqlite3
value = sqlite3.adapt(value)
except ImportError:
pass
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)))
