def cdate(input_, doquote=True, isfunction=False):
"""
Returns a formatted string safe for use in SQL. If None or an empty
string is passed, it will return 'NULL' so as to insert a NULL value
into the database.
B{Todo:}
I{This function needs to be able to receive datetime.datetime types too.}
@param input_: Date to be cleaned
@type input_: String
@return: String, or 'NULL'
>>> print 'SET updated = %s;' % cdate('1/1/2005')
SET updated = '1/1/2005';
>>> print 'SET updated = %s;' % cdate('now()', isfunction=True)
SET updated = now();
"""
if input_ in [None, '', 'NULL']:
return 'NULL'
elif isfunction:
return input_
else:
input_ = str(input_)
if data.isdate(input_):
if doquote:
input_ = data.wrap(input_, "'")
else:
raise error.TypeConversionError(input_, 'sql date')
return input_
def cdate(string, doquote=True, isfunction=False):
"""
Returns a formatted string safe for use in SQL. If :class:`None` or an empty
string is passed, it will return ``NULL`` so as to insert a NULL value
into the database.
.. note::
Todo: This function needs to be able to receive
datetime.datetime types too.
:param string: Date to be cleaned
:type string: :class:`str`
:rtype: :class:`str`, or ``NULL``
>>> from chula.db import functions
>>> print 'SET updated = %s;' % functions.cdate('1/1/2005')
SET updated = '1/1/2005';
>>> print 'SET updated = %s;' % functions.cdate('now()', isfunction=True)
SET updated = now();
"""
if string in [None, '', 'NULL']:
return 'NULL'
elif isfunction:
return string
else:
string = str(string)
if data.isdate(string):
if doquote:
string = data.wrap(string, "'")
else:
raise error.TypeConversionError(string, 'sql date')
return string
def test_isdate(self):
self.assertEqual(data.isdate('1/1/2005'), True)
self.assertEqual(data.isdate('1-1-2005'), True)
self.assertEqual(data.isdate('2005-01-01'), True)
self.assertEqual(data.isdate('1/1/2005 10:45'), True)
self.assertEqual(data.isdate('1/1/2005 10:45:00'), True)
self.assertEqual(data.isdate('1/1/20050'), False)
self.assertEqual(data.isdate(None), False)
self.assertEqual(data.isdate('a'), False)
self.assertEqual(data.isdate(1), False)
self.assertEqual(data.isdate(''), False)
self.assertEqual(data.isdate("'"), False)
def test_isdate(self):
self.assertEqual(data.isdate("1/1/2005"), True)
self.assertEqual(data.isdate("1-1-2005"), True)
self.assertEqual(data.isdate("2005-01-01"), True)
self.assertEqual(data.isdate("1/1/2005 10:45"), True)
self.assertEqual(data.isdate("1/1/2005 10:45:00"), True)
self.assertEqual(data.isdate("1/1/20050"), False)
self.assertEqual(data.isdate(None), False)
self.assertEqual(data.isdate("a"), False)
self.assertEqual(data.isdate(1), False)
self.assertEqual(data.isdate(""), False)
self.assertEqual(data.isdate("'"), False)
