Bind the constructor's |this| object...
MongoClient.connect('...', function() {...}.bind(this));
On Monday, March 11, 2013, Martin Cooper wrote:
>
>
> On Sun, Mar 10, 2013 at 3:10 PM, Venkatesh U
> <[email protected]<javascript:_e({}, 'cvml', '[email protected]');>
> > wrote:
>
>> Hi,
>> I have defined the following class in a .js file and I am trying to
>> create an object of this class, but it is not working. I am getting
>> undefined instead of the object, when I use the new. I am new to both
>> node.js and JavaScript. It will be great help to me, if somebody can give
>> some insights on how to do simple OOP in node.js. Thanks in advance.
>>
>
> Did you export DBManager from smailer.js?
>
> --
> Martin Cooper
>
>
> Venki
>>
>> function DBManager(port, host, dbname) {
>> // Retrieve
>> var MongoClient = require('mongodb').MongoClient;
>>
>> // Connect to the db
>> MongoClient.connect("mongodb://localhost:" + port + "/" + dbname,
>> function(
>> err, db) {
>> if (!err) {
>> console.log("We are connected");
>> this.db = db;
>> this.domainStore = this.db.collection('domain', function(err,
>> result) {
>> if (err) {
>> console.log("unable to get domain store " + err);
>> }
>> });
>> this.emailStore = this.db.collection('email',
>> function(err, result) {
>> if (err) {
>> console.log("unable to get email store " + err);
>> }
>> });
>> }
>> });
>> };
>>
>>
>> I am creating the object by using the below code.
>>
>> > var z = require('./smailer.js')
>> > var k = new z.DBManager(27017, 'localhost', 'dev')
>> > k
>> {}
>>
>>
>>
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>
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