def _comparator_func(self, obj):
(value, ) = cmp(self.attr)(obj)
if self.verb:
return self.apply_verb(value)
else:
return value == self.value
def distinct(self, *attrs):
if not attrs:
attrs = self._attrs - {'created', 'updated'}
meta = [(cmp(*attrs)(obj), obj) for obj in self.reverse()]
return type(self)(OrderedDict(meta).values())
def values(self, *attrs):
if not attrs:
attrs = self._attrs
return type(self)(
(dict(zip(attrs, obj)) for obj in map(cmp(*attrs), self)),
model=self.model)
def order_by(self, *fields: Fields):
if not fields:
raise AttributeError
return type(self)(
sorted(self, key=cmp(*fields)),
model=self.model
)
def values(self, *fields: Fields) -> 'QuerySet':
if not fields:
fields = self._attrs
return type(self)(
(
dict(zip(fields, obj))
for obj in map(cmp(*fields), self)
),
model=self.model
)
def values_list(self, *attrs, flat=False):
# TODO: Allow order_by on values_list
if not attrs:
attrs = self._attrs
if len(attrs) > 1 and flat:
raise TypeError(
'/flat/ is not valid when values_list is called with more than '
'one field.')
return type(self)((flatmap if flat else map)(cmp(*attrs), self))
def distinct(self, *fields: Fields) -> 'QuerySet':
if not fields:
fields = self._attrs - {'created', 'updated'}
meta = [
(cmp(*fields)(obj), obj)
for obj in self.reverse()
]
return type(self)(
OrderedDict(meta).values(),
model=self.model
).reverse()
def values_list(self, *fields: Fields, flat: bool=False) -> 'QuerySet':
# TODO: Allow order_by on values_list
if not fields:
fields = self._attrs
if len(fields) > 1 and flat:
raise TypeError(
'/flat/ is not valid when values_list is called with more than '
'one field.'
)
return type(self)(
(flatmap if flat else map)(cmp(*fields), self),
model=self.model
)
def order_by(self, *attrs):
if not attrs:
raise AttributeError
return type(self)(sorted(self, key=cmp(*attrs)))