def on_duplicate_key_update(self, *args, **kwds):
backend = get_backend()
if backend.supports_on_duplicate_key_update:
self._on_duplicate_key_update.set(*args, **kwds)
if backend.supports_on_conflict_do_update:
self._on_conflict_do_update.set(*args, **kwds)
if backend.supports_replace_into:
if args or kwds:
raise Exception(
'No argument for on_duplicate_key_update for backend {} is supported'.format(
backend.name
)
)
self._queryparts['keyword'].replace()
return self
def full_join(self, arg):
backend = get_backend()
if not backend.supports_full_join:
raise InvalidQueryException('Backend {} does not support FULL JOIN.'.format(backend.name))
self.last_table().join(arg, FULL_JOIN)
return self
def _string(self):
# Sometimes, e.g. in subselect, is needed reference to column instead of self.value.
if get_backend().is_reference(self.value):
return self._reference()
return six.u("'%s'") % _escape_value(force_text(self.value))
def _reference(self):
return get_backend().reference(self.value)
def _boolean(self):
return get_backend().boolean(self.value)
def _boolean(self):
return get_backend().boolean(self.value)
def _string(self):
# Sometimes, e.g. in subselect, is needed reference to column instead of self.value.
if get_backend().is_reference(self.value):
return self._reference()
return "'{}'".format(_escape_value(force_text(self.value)))
def _reference(self):
return get_backend().reference(self.value)
def _bytes(self):
return get_backend().bytes(self.value)
def full_join(self, arg):
backend = get_backend()
if not backend.supports_full_join:
raise InvalidQueryException('Backend {} does not support FULL JOIN.'.format(backend.name))
self.last_table().join(arg, FULL_JOIN)
return self
