Mutiple calls to define with the same daoName would add duplicate entries into the factory system.

- added test to check factory size

lib/sequelize.js

@@ -145,6 +145,11 @@ module.exports = (function() {
     }
     }
     options.omitNull = globalOptions.omitNull
     options.omitNull = globalOptions.omitNull
 
 
+    // if you call "define" multiple times for the same daoName, do not clutter the factory
+    if(this.isDefined(daoName)) {
+        this.daoFactoryManager.removeDAO(this.daoFactoryManager.getDAO(daoName))
+    }
+
     var factory = new DAOFactory(daoName, attributes, options)
     var factory = new DAOFactory(daoName, attributes, options)
     this.daoFactoryManager.addDAO(factory.init(this.daoFactoryManager))
     this.daoFactoryManager.addDAO(factory.init(this.daoFactoryManager))
     return factory
     return factory

spec/dao-factory.spec.js

@@ -36,6 +36,16 @@ describe(Helpers.getTestDialectTeaser("DAOFactory"), function() {
       expect(User.tableName).toEqual('SuperUsers')
       expect(User.tableName).toEqual('SuperUsers')
     })
     })
 
 
+    it("uses checks to make sure dao factory isnt leaking on multiple define", function() {
+      var User = this.sequelize.define('SuperUser', {}, { freezeTableName: false })
+      var factorySize = this.sequelize.daoFactoryManager.all.length
+
+      var User2 = this.sequelize.define('SuperUser', {}, { freezeTableName: false })   
+      var factorySize2 = this.sequelize.daoFactoryManager.all.length
+
+      expect(factorySize).toEqual(factorySize2)
+    })
+
     it("attaches class and instance methods", function() {
     it("attaches class and instance methods", function() {
       var User = this.sequelize.define('UserWithClassAndInstanceMethods', {}, {
       var User = this.sequelize.define('UserWithClassAndInstanceMethods', {}, {
         classMethods: { doSmth: function(){ return 1 } },
         classMethods: { doSmth: function(){ return 1 } },