def add_date_select(self, field_name, lookup_type, order='ASC'):
"""
Converts the query into a date extraction query.
"""
try:
result = self.setup_joins(field_name.split(LOOKUP_SEP),
self.get_meta(),
self.get_initial_alias(), False)
except FieldError:
raise FieldDoesNotExist("%s has no field named '%s'" %
(self.model._meta.object_name, field_name))
field = result[0]
assert isinstance(field, DateField), "%r isn't a DateField." \
% field.name
alias = result[3][-1]
select = Date((alias, field.column), lookup_type)
self.select = [select]
self.select_fields = [None]
self.select_related = False # See #7097.
self.set_extra_mask([])
self.distinct = True
self.order_by = order == 'ASC' and [1] or [-1]
if field.null:
self.add_filter(("%s__isnull" % field_name, False))
def add_date_select(self, field, lookup_type, order='ASC'):
"""
Converts the query into a date extraction query.
"""
result = self.setup_joins([field.name], self.get_meta(),
self.get_initial_alias(), False)
alias = result[3][-1]
select = Date((alias, field.column), lookup_type,
self.connection.ops.date_trunc_sql)
self.select = [select]
self.select_fields = [None]
self.select_related = False # See #7097.
self.distinct = True
self.order_by = order == 'ASC' and [1] or [-1]
def _get_select(self, col, lookup_type):
return Date(col, lookup_type)