die*_*lar 8 mongodb node.js mongodb-query sails.js waterline
我试着:
我正在使用a,Bulk.unOrderedOperation因为我也在执行单个插入.而且我想在一次操作中再做一切DB.
然而,正在为更新/ upsert操作插入一些不会导致任何问题.
这是插入文档:
var lineUpPointsRoundRecord = {
lineupId: lineup.id, // String
totalPoints: roundPoints, // Number
teamId: lineup.team, // String
teamName: home.team.name, // String
userId: home.iduser, // String
userName: home.user.name, // String
round: lineup.matchDate.round, // Number
date: new Date()
}
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这是upsert文档:
var lineUpPointsGeneralRecord = {
teamId: lineup.team, // String
teamName: home.team.name, // String
userId: home.iduser, // String
userName: home.user.name, // String
round: 0,
signupPoints: home.signupPoints, // String
lfPoints: roundPoints+home.signupPoints, // Number
roundPoints: [roundPoints] // Number
};
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这就是我尝试upsert/update的方式:
var batch = collection.initializeUnorderedBulkOp();
batch.insert(lineUpPointsRoundRecord);
batch.find({team: lineUpPointsRoundRecord.teamId, round: 0}).
upsert().
update({
$setOnInsert: lineUpPointsGeneralRecord,
$inc: {lfPoints: roundPoints},
$push: {roundPoints: roundPoints}
});
batch.execute(function (err, result) {
return cb(err,result);
});
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为什么不进行上传/更新?
这是使用水线ORM的JS代码,它也使用mongodb本机驱动程序.
Bla*_*ven 11
这里的语法基本上是正确的,但是你的一般执行是错误的,你应该从其他修改中"分离""upsert"动作.否则,当发生"upsert"时,这些将"冲突"并产生错误:
LineupPointsRecord.native(function (err,collection) {
var bulk = collection.initializeOrderedBulkOp();
// Match and update only. Do not attempt upsert
bulk.find({
"teamId": lineUpPointsGeneralRecord.teamId,
"round": 0
}).updateOne({
"$inc": { "lfPoints": roundPoints },
"$push": { "roundPoints": roundPoints }
});
// Attempt upsert with $setOnInsert only
bulk.find({
"teamId": lineUpPointsGeneralRecord.teamId,
"round": 0
}).upsert().updateOne({
"$setOnInsert": lineUpPointsGeneralRecord
});
bulk.execute(function (err,updateResult) {
sails.log.debug(err,updateResult);
});
});
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确保您的sails-mongo是支持批量操作的最新版本,包括最近的节点本机驱动程序.最新的支持v2驱动程序,这很好.
Dan*_*iel 10
我建议在许多文档中使用bulkWrite示例代码:bulk upsert
在这种情况下,您将创建具有唯一md5. 如果文档存在,则将被更新,但不会像经典中那样创建新文档insertMany。
const collection = context.services.get("mongodb-atlas").db("master").collection("fb_posts");
return collection.bulkWrite(
posts.map(p => {
return { updateOne:
{
filter: { md5: p.md5 },
update: {$set: p},
upsert : true
}
}
}
),
{ ordered : false }
);
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https://docs.mongodb.com/manual/reference/method/db.collection.bulkWrite/
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