Added files

mongoui/mongoui-master/node_modules/monk/lib/promise.js

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+
+/**
+ * Module dependencies.
+ */
+
+var EventEmitter = require('events').EventEmitter;
+
+/**
+ * Module exports.
+ */
+
+module.exports = Promise;
+
+/**
+ * Promise constructor.
+ *
+ * @param {Collection} collection
+ * @param {String} type
+ * @param {Object} query options
+ * @api public
+ */
+
+function Promise (col, type, opts) {
+  this.col = col;
+  this.type = type;
+  this.completed = false;
+  this.opts = opts || {};
+
+  // complete event
+  var self = this;
+  this.once('error', function (err) {
+    if (self.completed) return;
+    self.emit('complete', err);
+  });
+  this.once('success', function (data) {
+    if (self.completed) return;
+    self.emit('complete', null, data);
+    process.nextTick(function(){
+      // null the query ref
+      delete self.query;
+    });
+  });
+
+  // for practical purposes
+  this.fulfill = this.fulfill.bind(this);
+}
+
+/**
+ * Inherits from EventEmitter.
+ */
+
+Promise.prototype.__proto__ = EventEmitter.prototype;
+
+/**
+ * Map methods to events.
+ */
+
+['each', 'error', 'success', 'complete'].forEach(function (method) {
+  Promise.prototype[method] = function (fn) {
+    if (fn) {
+      this.on(method, fn);
+    }
+    return this;
+  };
+});
+
+/**
+ * Fulfills the promise.
+ *
+ * @api public
+ */
+
+Promise.prototype.fulfill = function (err, data) {
+  this.fulfilled = true;
+  if (err) {
+    this.emit('error', err);
+  } else {
+    this.emit('success', data);
+  }
+};
+
+/**
+ * Destroys the promise.
+ *
+ * @api public
+ */
+
+Promise.prototype.destroy = function(){
+  this.emit('destroy');
+  var self = this;
+  process.nextTick(function(){
+    // null the query ref
+    delete self.query;
+  });
+};