-class StringProperty(object):
- def __init__(self, cls, stringclass, colname):
- self.cls = cls
- self.colname = colname
- self.stringclass = stringclass
-
- def __get__(self, instance, cls):
- if instance:
- return dict(
- (l, getattr(t, self.colname))
- for l, t
- in getattr(instance, self.stringclass._attrname).items()
- )
- else:
- return self
-
- def __getitem__(self, lang):
- return StringExpression(self, lang)
-
- def __str__(self):
- return '<StringDict %s.%s>' % (self.cls, self.colname)
-
-class StringExpression(ColumnOperators):
- def __init__(self, prop, lang):
- self.prop = prop
- self.column = getattr(prop.stringclass, prop.colname)
- self.lang_column = prop.stringclass._language_identifier
- if isinstance(lang, basestring):
- self.lang = lang
- else:
- self.lang = lang.identifier
-
- def operate(self, op, *values, **kwargs):
- return getattr(self.prop.cls, self.prop.stringclass._attrname).any(and_(
- self.lang_column == self.lang,
- op(self.column, *values, **kwargs),
- ))