add uuid data type with uuidv1 and uuidv4 as possible default values

lib/data-types.js

@@ -188,6 +188,9 @@ module.exports = {
   FLOAT: FLOAT,
   NOW: 'NOW',
   BLOB: BLOB,
+  UUID: 'CHAR(36)',
+  UUIDV1: 'UUIDV1',
+  UUIDV4: 'UUIDV4',
 
   get ENUM() {
     var result = function() {

lib/utils.js

@@ -3,6 +3,7 @@ var util       = require("util")
   , SqlString  = require("./sql-string")
   , lodash     = require("lodash")
   , _string    = require('underscore.string')
+  , uuid       = require('node-uuid')
 
 var Utils = module.exports = {
   _: (function() {
@@ -375,8 +376,14 @@ var Utils = module.exports = {
   toDefaultValue: function(value) {
     if (lodash.isFunction(value)) {
       return value()
+    } else if (value === DataTypes.UUIDV1) {
+      return uuid.v1()
+    } else if (value === DataTypes.UUIDV4) {
+      return uuid.v4()
+    } else if (value === DataTypes.NOW) {
+      return Utils.now()
     } else {
-      return (value === DataTypes.NOW) ? Utils.now() : value
+      return value
     }
   },
 
@@ -488,7 +495,6 @@ var Utils = module.exports = {
     return stack;
   },
 
-
   now: function(dialect) {
     var now = new Date()
     if(dialect != "postgres") now.setMilliseconds(0)

package.json

@@ -46,7 +46,8 @@
     "toposort-class": "~0.2.0",
     "generic-pool": "2.0.4",
     "promise": "~3.2.0",
-    "sql": "~0.28.0"
+    "sql": "~0.28.0",
+    "node-uuid": "~1.4.1"
   },
   "devDependencies": {
     "sqlite3": "~2.1.12",

test/dao.test.js

@@ -7,6 +7,7 @@ var chai      = require('chai')
   , config    = require(__dirname + "/config/config")
   , sinon     = require('sinon')
   , datetime  = require('chai-datetime')
+  , uuid      = require('node-uuid')
   , _         = require('lodash')
 
 chai.use(datetime)
@@ -16,6 +17,8 @@ describe(Support.getTestDialectTeaser("DAO"), function () {
   beforeEach(function(done) {
     this.User = this.sequelize.define('User', {
       username:  { type: DataTypes.STRING },
+      uuidv1:    { type: DataTypes.UUID, defaultValue: DataTypes.UUIDV1 },
+      uuidv4:    { type: DataTypes.UUID, defaultValue: DataTypes.UUIDV4 },
       touchedAt: { type: DataTypes.DATE, defaultValue: DataTypes.NOW },
       aNumber:   { type: DataTypes.INTEGER },
       bNumber:   { type: DataTypes.INTEGER },
@@ -568,6 +571,26 @@ describe(Support.getTestDialectTeaser("DAO"), function () {
   })
 
   describe('default values', function() {
+    describe('uuid', function() {
+      it('should store a string in uuidv1 and uuidv4', function(done) {
+        var user = this.User.build({ username: 'a user'})
+        expect(user.uuidv1).to.be.a('string')
+        expect(user.uuidv4).to.be.a('string')
+        done()
+      })
+      it('should store a string of length 36 in uuidv1 and uuidv4', function(done) {
+        var user = this.User.build({ username: 'a user'})
+        expect(user.uuidv1).to.have.length(36)
+        expect(user.uuidv4).to.have.length(36)
+        done()
+      })
+      it('should store a valid uuid in uuidv1 and uuidv4 that can be parsed to something of length 16', function(done) {
+        var user = this.User.build({ username: 'a user'})
+        expect(uuid.parse(user.uuidv1)).to.have.length(16)
+        expect(uuid.parse(user.uuidv4)).to.have.length(16)
+        done()
+      })
+    })
     describe('current date', function() {
       it('should store a date in touchedAt', function(done) {
         var user = this.User.build({ username: 'a user'})

test/data-types.test.js

@@ -25,6 +25,7 @@ describe(Support.getTestDialectTeaser('DataTypes'), function() {
     [Sequelize.TEXT, 'TEXT', 'TEXT'],
     [Sequelize.DATE, 'DATE', 'DATETIME'],
     [Sequelize.NOW, 'NOW', 'NOW'],
+    [Sequelize.UUID, 'UUID', 'CHAR(36)'],
     [Sequelize.BOOLEAN, 'BOOLEAN', 'TINYINT(1)'],
 
     [Sequelize.BLOB, 'BLOB', 'BLOB'],