Set insertId for non-default auto increment fields

lib/sequelize/model-definition.js

@@ -17,6 +17,7 @@ var ModelDefinition = module.exports = function(name, attributes, options) {
 
 
   this.addDefaultAttributes()
   this.addDefaultAttributes()
   this.addOptionalClassMethods()
   this.addOptionalClassMethods()
+  this.findAutoIncrementField()
 }
 }
 Utils.addEventEmitter(ModelDefinition)
 Utils.addEventEmitter(ModelDefinition)
 
 
@@ -43,6 +44,19 @@ ModelDefinition.prototype.addDefaultAttributes = function() {
   Utils._.map(defaultAttributes, function(value, attr) { self.attributes[attr] = value })
   Utils._.map(defaultAttributes, function(value, attr) { self.attributes[attr] = value })
 }
 }
 
 
+ModelDefinition.prototype.findAutoIncrementField = function() {
+  var self = this;
+  this.autoIncrementField = null;
+  Utils._.map(this.attributes, function(definition, name) {
+    if (definition && definition.indexOf('auto_increment') >= 0) {
+      if (self.autoIncrementField) {
+        throw new Error('Invalid model definition. Only one autoincrement field allowed.')
+      }
+      self.autoIncrementField = name;
+    }
+  })
+}
+
 ModelDefinition.prototype.query = function() {
 ModelDefinition.prototype.query = function() {
   var args = Utils._.map(arguments, function(arg, _) { return arg })
   var args = Utils._.map(arguments, function(arg, _) { return arg })
     , s    = this.modelManager.sequelize
     , s    = this.modelManager.sequelize

lib/sequelize/query.js

@@ -34,8 +34,8 @@ Query.prototype.onSuccess = function(query, results, fields) {
     , self   = this
     , self   = this
   
   
   // add the inserted row id to the instance
   // add the inserted row id to the instance
-  if (this.callee && !this.callee.options.hasPrimaryKeys && (query.indexOf('INSERT INTO') == 0) && (results.hasOwnProperty('insertId')))
-    this.callee.id = results.insertId
+  if (this.callee && (query.indexOf('INSERT INTO') == 0) && (results.hasOwnProperty('insertId')))
+    this.callee[this.callee.definition.autoIncrementField] = results.insertId
 
 
   // transform results into real model instances
   // transform results into real model instances
   // return the first real model instance if options.plain is set (e.g. Model.find)
   // return the first real model instance if options.plain is set (e.g. Model.find)

test/Model/create.js

@@ -37,5 +37,16 @@ module.exports = {
         })
         })
       })
       })
     })
     })
+  },
+  'it should set the auto increment field to the insert id': function(exit) {
+    var User = sequelize.define('User' + config.rand(), {
+      userid: {type: Sequelize.INTEGER, autoIncrement: true, primaryKey: true, allowNull: false}
+    })
+    User.sync({force:true}).on('success', function() {
+      User.create({}).on('success', function(user) {
+        assert.eql(user.userid, 1)
+        exit(function(){})
+      })
+    })
   }
   }
 }
 }
\ No newline at end of file

test/Sequelize/define.js

@@ -75,5 +75,13 @@ module.exports = {
     
     
     assert.isDefined(User.build().makeItSo)
     assert.isDefined(User.build().makeItSo)
     assert.eql(User.build().makeItSo(), 2)
     assert.eql(User.build().makeItSo(), 2)
+  },
+  'it shouldn\'t allow two auto increment fields': function() {
+    assert.throws(function () {
+      var User = sequelize.define('User', {
+        userid: {type: Sequelize.INTEGER, primaryKey: true, autoIncrement: true},
+        userscore: {type: Sequelize.INTEGER, primaryKey: true, autoIncrement: true},
+      })
+    })
   }
   }
 }
 }
\ No newline at end of file

test/config.js

 module.exports = {
 module.exports = {
     username: 'root'
     username: 'root'
-  , password: null
+  , password: 'password'
   , database: 'sequelize_test'
   , database: 'sequelize_test'
   , host: '127.0.0.1'
   , host: '127.0.0.1'
   , rand: function() {
   , rand: function() {