32 lines
1.1 KiB
Python
32 lines
1.1 KiB
Python
from sqlalchemy import func, case
|
|
from sqlalchemy.orm import aliased
|
|
from orm.reaction import Reaction, ReactionKind
|
|
|
|
|
|
def add_common_stat_columns(q):
|
|
aliased_reaction = aliased(Reaction)
|
|
|
|
q = q.outerjoin(aliased_reaction).add_columns(
|
|
func.sum(
|
|
aliased_reaction.id
|
|
).label('reacted_stat'),
|
|
func.sum(
|
|
case(
|
|
(aliased_reaction.body.is_not(None), 1),
|
|
else_=0
|
|
)
|
|
).label('commented_stat'),
|
|
func.sum(case(
|
|
(aliased_reaction.kind == ReactionKind.AGREE, 1),
|
|
(aliased_reaction.kind == ReactionKind.DISAGREE, -1),
|
|
(aliased_reaction.kind == ReactionKind.PROOF, 1),
|
|
(aliased_reaction.kind == ReactionKind.DISPROOF, -1),
|
|
(aliased_reaction.kind == ReactionKind.ACCEPT, 1),
|
|
(aliased_reaction.kind == ReactionKind.REJECT, -1),
|
|
(aliased_reaction.kind == ReactionKind.LIKE, 1),
|
|
(aliased_reaction.kind == ReactionKind.DISLIKE, -1),
|
|
else_=0)
|
|
).label('rating_stat'))
|
|
|
|
return q
|