Node.js 蒙古语或蒙古语母语不支持组功能?
伙计们 在node.js中,蒙古语或蒙古语本机不支持组功能 mongo本机代码Node.js 蒙古语或蒙古语母语不支持组功能?,node.js,mongodb,Node.js,Mongodb,伙计们 在node.js中,蒙古语或蒙古语本机不支持组功能 mongo本机代码 var mongodb = require('mongodb'); var Db = mongodb.Db; var Server = mongodb.Server; var db = new Db( "test", new Server( "localhost", 27017 ), { w:0 } ); db.collection( "user" ).group( { key: { },
var mongodb = require('mongodb');
var Db = mongodb.Db;
var Server = mongodb.Server;
var db = new Db( "test", new Server( "localhost", 27017 ), { w:0 } );
db.collection( "user" ).group( {
key: { },
reduce: function ( curr, result ) { },
initial: { }
} );
结果,
/node/ex1/node_modules/mongodb/lib/mongodb/collection.js:1400
if(err != null) return callback(err);
^
TypeError: undefined is not a function
at Collection.group.scope (/node/ex1/node_modules/mongodb/lib/mongodb/collection.js:1400:30)
at Db._executeQueryCommand (/node/ex1/node_modules/mongodb/lib/mongodb/db.js:1812:12)
at Collection.group (/node/ex1/node_modules/mongodb/lib/mongodb/collection.js:1399:13)
at Object.<anonymous> (/node/ex1/repository.js:34:25)
db.collection( "user" ).group( {
^
TypeError: Object Mongolian[mongo://localhost:27017]/assistor.user has no method 'group'
at Object.<anonymous> (/node/ex1/repository.js:77:25)
结果,
/node/ex1/node_modules/mongodb/lib/mongodb/collection.js:1400
if(err != null) return callback(err);
^
TypeError: undefined is not a function
at Collection.group.scope (/node/ex1/node_modules/mongodb/lib/mongodb/collection.js:1400:30)
at Db._executeQueryCommand (/node/ex1/node_modules/mongodb/lib/mongodb/db.js:1812:12)
at Collection.group (/node/ex1/node_modules/mongodb/lib/mongodb/collection.js:1399:13)
at Object.<anonymous> (/node/ex1/repository.js:34:25)
db.collection( "user" ).group( {
^
TypeError: Object Mongolian[mongo://localhost:27017]/assistor.user has no method 'group'
at Object.<anonymous> (/node/ex1/repository.js:77:25)
db.collection(“用户”)组({
^
TypeError:对象蒙古语[mongo://localhost:27017]/assistor.user没有方法“组”
在对象处。(/node/ex1/repository.js:77:25)
如中所示,本机驱动程序支持它,但组
方法将键
、减少
等作为单独的参数,而不是像shell那样的对象中的字段:
db.collection("user").group(
{},
{},
{ sum: 0 },
function (curr, result) { },
function (err, result) {
// Process the result
}
);
npm的蒙古包没有更新,您必须克隆git存储库,然后将其与npm链接 然后文档不完整,你必须这样做,我花了一段时间才让它工作
var Mongolian = require( "mongolian" );
var server = new Mongolian;
var db = server.db( "test" );
db.collection( "user" ).group( {
ns: "user",
key: { },
reduce: function ( curr, result ) { },
initial: { }
},function(error,post){
if(error) console.log(error);
//do something with post.retval
}
);