68 lines
2.4 KiB
Python
68 lines
2.4 KiB
Python
#This file is part of Tryton. The COPYRIGHT file at the top level of
|
|
#this repository contains the full copyright notices and license terms.
|
|
import warnings
|
|
|
|
from sql import Query, Expression
|
|
|
|
from ...config import CONFIG
|
|
from .field import Field, FieldTranslate, size_validate, SQLType
|
|
|
|
|
|
class Char(FieldTranslate):
|
|
'''
|
|
Define a char field (``unicode``).
|
|
'''
|
|
_type = 'char'
|
|
|
|
def __init__(self, string='', size=None, help='', required=False,
|
|
readonly=False, domain=None, states=None, translate=False,
|
|
select=False, on_change=None, on_change_with=None, depends=None,
|
|
context=None, loading=None, autocomplete=None):
|
|
'''
|
|
:param translate: A boolean. If ``True`` the field is translatable.
|
|
:param size: A integer. If set defines the maximum size of the values.
|
|
'''
|
|
if loading is None:
|
|
loading = 'lazy' if translate else 'eager'
|
|
super(Char, self).__init__(string=string, help=help, required=required,
|
|
readonly=readonly, domain=domain, states=states, select=select,
|
|
on_change=on_change, on_change_with=on_change_with,
|
|
depends=depends, context=context, loading=loading)
|
|
self.autocomplete = set()
|
|
if autocomplete:
|
|
warnings.warn('autocomplete argument is deprecated, use the '
|
|
'depends decorator', DeprecationWarning, stacklevel=2)
|
|
self.autocomplete |= set(autocomplete)
|
|
self.translate = translate
|
|
self.__size = None
|
|
self.size = size
|
|
__init__.__doc__ += Field.__init__.__doc__
|
|
|
|
def _get_size(self):
|
|
return self.__size
|
|
|
|
def _set_size(self, value):
|
|
size_validate(value)
|
|
self.__size = value
|
|
|
|
size = property(_get_size, _set_size)
|
|
|
|
@staticmethod
|
|
def sql_format(value):
|
|
if isinstance(value, (Query, Expression)):
|
|
return value
|
|
if value is None:
|
|
return None
|
|
elif isinstance(value, str):
|
|
return unicode(value, 'utf-8')
|
|
assert isinstance(value, unicode)
|
|
return value
|
|
|
|
def sql_type(self):
|
|
db_type = CONFIG['db_type']
|
|
if self.size and db_type != 'sqlite':
|
|
return SQLType('VARCHAR', 'VARCHAR(%s)' % self.size)
|
|
elif db_type == 'mysql':
|
|
return SQLType('CHAR', 'VARCHAR(255)')
|
|
return SQLType('VARCHAR', 'VARCHAR')
|