removed if DAO in mixin

lib/associations/mixin.js

@@ -10,10 +10,9 @@ Mixin.hasOne = function(associatedDAO, options) {
   // the id is in the foreign table
   var association = new HasOne(this, associatedDAO, Utils._.extend((options||{}), this.options))
   this.associations[association.associationAccessor] = association.injectAttributes()
-  if (this.DAO) {
-    association.injectGetter(this.DAO.prototype);
-    association.injectSetter(this.DAO.prototype);
-  }
+
+  association.injectGetter(this.DAO.prototype);
+  association.injectSetter(this.DAO.prototype);
 
   return this
 }
@@ -22,10 +21,10 @@ Mixin.belongsTo = function(associatedDAO, options) {
   // the id is in this table
   var association = new BelongsTo(this, associatedDAO, Utils._.extend((options||{}), this.options))
   this.associations[association.associationAccessor] = association.injectAttributes()
-  if (this.DAO) {
-    association.injectGetter(this.DAO.prototype);
-    association.injectSetter(this.DAO.prototype);
-  }
+
+  association.injectGetter(this.DAO.prototype);
+  association.injectSetter(this.DAO.prototype);
+  
   return this
 }
 
@@ -33,10 +32,9 @@ Mixin.hasMany = function(associatedDAO, options) {
   // the id is in the foreign table or in a connecting table
   var association = new HasMany(this, associatedDAO, Utils._.extend((options||{}), this.options))
   this.associations[association.associationAccessor] = association.injectAttributes()
-  if (this.DAO) {
-    association.injectGetter(this.DAO.prototype);
-    association.injectSetter(this.DAO.prototype);
-  }
+  
+  association.injectGetter(this.DAO.prototype);
+  association.injectSetter(this.DAO.prototype);
 
   return this
 }

lib/dao.js

@@ -253,7 +253,6 @@ module.exports = (function() {
 
   DAO.prototype.addAttribute = function(attribute, value) {
     this[attribute] = value
-    // this.attributes.push(attribute)
   }
 
   DAO.prototype.setValidators = function(attribute, validators) {