Added node-modules

node_modules/mongoose-pureautoinc/lib/pureautoinc.js

@@ -0,0 +1,105 @@
+/**
+ * @author Dmitry Ilin @ MyLove Company, LLC <dmitry@mylovecompany.com>
+ */
+
+module.exports = new (function () {
+
+	var	db,
+		Counter,
+		mongoose,
+		counterName;
+
+	this.plugin = function(schema, options) {
+
+		if (!options.model)
+			throw new Error('Missing required parameter: model');
+
+		options.model = options.model.toLowerCase();
+		options.field = options.field || 'sequenceNumber';
+		options.start = (!isNaN(options.start)) ? options.start : 0;
+		
+		var fields = {},
+			ready  = false;
+		
+		// Adding new field into schema
+		fields[options.field] = {
+			type:    Number,
+			unique:  true,
+			require: true
+		};
+		schema.add(fields);
+
+		// Initializing of plugin
+		Counter.findOne({
+			model: options.model,
+			field: options.field
+		}, function (err, res) {
+			if (!res)
+				(new Counter({
+					model: options.model,
+					field: options.field,
+					c:     options.start
+				})).save(function () {
+					ready = true;
+				});
+			else
+				ready = true;
+		});
+
+		schema.pre('save', function (next) {
+
+			var doc = this;
+
+			// Delay before plugin will be sucessfully initialized
+			function save () {
+
+				if (ready)
+					Counter.collection.findAndModify({
+						model: options.model,
+						field: options.field
+					}, [], {
+						$inc: {
+							c: 1
+						}
+					}, {
+						'new':  true,
+						upsert: true
+					}, function (err, res) {
+
+						if (!err)
+							doc[options.field] = res.c - 1;
+						next(err);
+					});
+				else
+					setTimeout(save, 5);
+			}
+			save();
+		});
+	};
+
+	this.init = function (database, counter) {
+
+		db          = database;
+		mongoose    = require('mongoose');
+		counterName = counter || 'counter';
+
+		var schema = new mongoose.Schema({
+			model: {
+				type:    String,
+				require: true
+			},
+			field: {
+				type:    String,
+				require: true
+			},
+			c: {
+				type:      Number,
+				'default': 0
+			}
+		});
+		schema.index({ field: 1, model: 1 }, { unique: true, required: true, index: -1 });
+
+		Counter = db.model(counterName, schema);
+	};
+
+})();