default values for freshly builded objects

lib/sequelize/model-definition.js

@@ -11,6 +11,7 @@ var ModelDefinition = module.exports = function(name, attributes, options) {
   this.name = name
   this.tableName = this.options.freezeTableName ? name : Utils.pluralize(name)
   this.attributes = Utils.simplifyAttributes(attributes)
+  this.rawAttributes = attributes
   this.modelManager = null // defined by model-manager during addModel
   this.associations = {}
 
@@ -106,8 +107,13 @@ ModelDefinition.prototype.build = function(values) {
 
   Utils._.map(this.attributes, function(definition, name) {
     if(typeof instance[name] == 'undefined') {
-      instance[name] = null
-      instance.addAttribute(name, null)
+      var value = null
+
+      if(self.rawAttributes.hasOwnProperty(name))
+        value = self.rawAttributes[name].defaultValue || null
+
+      instance[name] = value
+      instance.addAttribute(name, value)
     }
   })
 

test/Model/build.js

@@ -22,5 +22,17 @@ module.exports = {
         exit(function(){})
       })
     })
+  },
+  'build should fill the object with default values': function() {
+    var Task = sequelize.define('Task' + parseInt(Math.random() * 99999999), {
+      title: {dataType: Sequelize.STRING, defaultValue: 'a task!'},
+      foo: {dataType: Sequelize.INTEGER, defaultValue: 2},
+      bar: {dataType: Sequelize.DATE},
+      foobar: {dataType: Sequelize.TEXT, defaultValue: 'asd'}
+    })
+    assert.eql(Task.build().title, 'a task!')
+    assert.eql(Task.build().foo, 2)
+    assert.eql(Task.build().bar, null)
+    assert.eql(Task.build().foobar, 'asd')
   }
 }
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