Mongo db crud example

CRUD-nodejs-mongodb.coffee

#Examples of crud operations on node.js using node-mongodb-native (in coffeescript)

mongo = require("mongodb")
host = 'localhost'
port = mongo.Connection.DEFAULT_PORT

this.ObjectID = mongo.ObjectID
this.db = new mongo.Db 'mydb', new mongo.Server(host, port, {}), {}


this.methods =
  create : (args, req, res) ->
    db.collection args.type, (err, collection) ->
      if err
        res.send "bro"
      else
        collection.insert args.obj, (err, docs) ->
          res.send docs
   request : (args, req, res) ->
    db.collection args.type, (err, collection) ->
      if err
        res.send "brokep"
      else
        if "_id" of args.wh
          args.wh._id = ObjectID.createFromHexString(args.wh._id)
        collection.find args.wh, (err, cursor) ->
          cursor.toArray (err, docs) ->
            res.send docs

  update : (args, req, res) ->
    db.collection args.type, (err, collection) ->
      if err
        res.send "broke"
      else
        if "_id" of args.wh
          args.wh._id = ObjectID.createFromHexString(args.wh._id)
        collection.update args.wh, args.va, {upsert: args.upsert, multi: args.multi}, (err, wha) ->
          
          res.send wha
          
  delete: (args, req, res) ->
     db.collection args.type, (err, collection) ->
      if err
        res.send "broke"
      else
        if "_id" of args.wh
          args.wh._id = ObjectID.createFromHexString(args.wh._id)
        collection.remove args.wh, (err, collection) ->
          res.send "done"

this.db.open () -> 
  app.post "/methods/:method/:args", (req, res) ->
    args = req.param("args")
    args = decodeURIComponent(args);
    methods[req.param("method")] JSON.parse(args), req, res