我对 Sequelize 有疑问。这是我想要做的:
return pointsTransaction.findAndCountAll({
where:{
user_id: userId
},
limit: opts.limit,
offset: opts.offset,
include:[{
model:sequelize.models.pointsPendingtransaction
}]
});
生成的查询如下所示:
SELECT "pointsTransaction".*,
"pointsPendingtransactions"."transaction_ptr_id" AS "pointsPendingtransactions.transactionPtrId",
"pointsPendingtransactions"."is_active" AS "pointsPendingtransactions.isActive",
"pointsPendingtransactions"."transaction_id" AS "pointsPendingtransactions.transaction_id"
FROM (
SELECT "pointsTransaction"."id",
"pointsTransaction"."date_time" AS "dateTime",
"pointsTransaction"."details",
"pointsTransaction"."points",
"pointsTransaction"."user_id"
FROM "points_transaction" AS "pointsTransaction"
WHERE "pointsTransaction"."user_id" = 10002 LIMIT 1000
) AS "pointsTransaction"
LEFT OUTER JOIN "points_pendingtransaction" AS "pointsPendingtransactions"
ON "pointsTransaction"."id" = "pointsPendingtransactions"."transaction_id"
因此,在 SQL 中,我只需在查询末尾添加该行即可使其正常工作:WHERE "pointsPendingtransactions"."transaction_id"IS null
所以我的问题是,我怎样才能用 sequelize 做到这一点?我尝试了许多不同的方法,但没有一种奏效......
最佳答案
如果您使用的是 Sequelize.Op 中的 Sequelize 符号运算符,那么 ...
return pointsTransaction.findAndCountAll({
where:{
user_id: userId
},
limit: opts.limit,
offset: opts.offset,
include:[{
model:sequelize.models.pointsPendingtransaction,
where: {
transaction_id: {
// "$eq" changes to "[Op.eq]"
[Op.eq]: null
}
}
}]
});
关于node.js - Sequelize 关系为空,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/32819524/