Started on node.js+socket.io+mongoDB on the backend for more responsivnes

server/node_modules/monk/lib/manager.js

@@ -0,0 +1,130 @@
+/**
+ * Module dependencies.
+ */
+
+var mongoskin = require('mongoskin')
+  , debug = require('debug')('monk:manager')
+  , Collection = require('./collection')
+  , ObjectId = mongoskin.ObjectID
+  , EventEmitter = require('events').EventEmitter
+
+/**
+ * Module exports.
+ */
+
+module.exports = Manager;
+
+/**
+ * Manager constructor.
+ *
+ * @param {Array|String} connection uri. replica sets can be an array or
+ * comma-separated
+ * @param {Object|Function} options or connect callback
+ * @param {Function} connect callback
+ */
+
+function Manager (uri, opts, fn) {
+  if (!uri) {
+    throw Error('No connection URI provided.');
+  }
+  
+  if (!(this instanceof Manager)) {
+    return new Manager(uri, opts, fn);
+  }
+
+  if ('function' == typeof opts) {
+    fn = opts;
+    opts = {};
+  }
+
+  opts = opts || {};
+  opts.safe = true;
+
+  if (Array.isArray(uri)) {
+    if (!opts.database) {
+      for (var i = 0, l = uri.length; i < l; i++) {
+        if (!opts.database) {
+          opts.database = uri[i].replace(/([^\/])+\/?/, '');
+        }
+        uri[i] = uri[i].replace(/\/.*/, '');
+      }
+    }
+    uri = uri.join(",") + "/" + opts.database;
+    debug('repl set connection "%j" to database "%s"', uri, opts.database);
+  }
+
+  if ('string' == typeof uri) {
+    if ( ! /^mongodb\:\/\//.test(uri)) {
+      uri = 'mongodb://' + uri;
+    }
+  }
+
+  this.driver = mongoskin.db(uri, opts);
+  this.helper = mongoskin.helper;
+  this.helper.id = ObjectId;
+  this.driver.open(this.onOpen.bind(this));
+  this.collections = {};
+  this.options = { safe: true };
+
+  if (fn) {
+    this.once('open', fn);
+  }
+}
+
+/**
+ * Inherits from EventEmitter
+ */
+
+Manager.prototype.__proto__ = EventEmitter.prototype;
+
+/**
+ * Open callback.
+ *
+ * @api private
+ */
+
+Manager.prototype.onOpen = function () {
+  this.emit('open');
+};
+
+/**
+ * Closes the connection.
+ *
+ * @return {Manager} for chaining
+ * @api private
+ */
+
+Manager.prototype.close = function (fn) {
+  this.driver.close(fn);
+  return this;
+};
+
+/**
+ * Gets a collection.
+ *
+ * @return {Collection} collection to query against
+ * @api private
+ */
+
+Manager.prototype.col =
+Manager.prototype.get = function (name) {
+  if (!this.collections[name]) {
+    this.collections[name] = new Collection(this, name);
+  }
+
+  return this.collections[name];
+};
+
+/**
+ * Casts to objectid
+ *
+ * @param {Mixed} hex id or ObjectId
+ * @return {ObjectId}
+ * @api public
+ */
+
+Manager.prototype.id =
+Manager.prototype.oid = function (str) {
+  if (null == str) return ObjectId();
+  return 'string' == typeof str ? ObjectId.createFromHexString(str) : str;
+};