def visit_order(self, node):
# if there is no specific ordering, then order by id
if not node.value:
return [
qlast.SortExpr(
path=qlast.Path(
steps=[qlast.Ptr(ptr=qlast.ObjectRef(name='id'))],
partial=True,
),
direction=qlast.SortAsc,
)
]
# Ordering is handled by specifying a list of special Ordering objects.
# Validation is already handled by this point.
orderby = []
for enum in node.value:
name, direction, nulls = self._visit_order_item(enum)
orderby.append(
qlast.SortExpr(
path=qlast.Path(
steps=[qlast.Ptr(ptr=qlast.ObjectRef(name=name))],
partial=True,
),
direction=direction,
nones_order=nulls,
))
return orderby
def visit_SortExpr(self, node):
result = qlast.SortExpr(
path=self.visit(node.expr),
direction=node.direction,
nones_order=node.nones_order
)
return result
def reduce_Expr_OptDirection_OptNonesOrder(self, *kids):
self.val = qlast.SortExpr(path=kids[0].val,
direction=kids[1].val,
nones_order=kids[2].val)