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我怎么能够把储存的 j子从 no子中解救出来。 j)
原标题:How can I save a stored javascript into mongodb from node.js

下列法典:

var mongo = require( mongodb );

var db = new mongo.Db( test , new mongo.Server( 127.0.0.1 , 27017, {}));

var callback = function (e, result) {
if (e) {
    console.log(e);
    process.exit(1);
}

console.log(result);
process.exit(0);
}

db.open(function (e) {
if (e)  callback(e);

db.collection( system.js , function (e, coll) {
    if (e)  callback(e);

    coll.save({
        "_id" : "myFunction",
        "value" : "function myFunction() { return 123; }"
    }, function (e) {
        if (e)  callback(e);

        db.eval("myFunction()", [], function (e, result) {
            if (e)  callback(e);

            callback(undefined, result);
        });

    });
});

});

产出:

[Error: eval failed: invoke failed: JS Error: TypeError: myFunction is not a function nofile_a:0]

我发现,这个问题与“”总结职能定义的引语有关。

On mongo-cli:

> db.system.js.find()
{ "_id" : "myFunction", "value" : "function myFunction() { return 123; }" }

但之后:

> db.system.js.save({_id : "myFunction", value : function myFunction() { return 123; }});

以及

> db.system.js.find()
{ "_id" : "myFunction", "value" : function cf__5__f_myFunction() {  
return 123;  
} }

db.eval(“我的功能”),工作!

因此,我的问题是:我怎么能避免仓储程序。 j 使用de-mongodb-native司机?

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