tests + fix for saving 0 values. fix #216

lib/dao.js

@@ -101,10 +101,10 @@ module.exports = (function() {
       }
 
       fields.forEach(function(field) {
-        if(self.values[field]) {
+        if(self.values[field] !== undefined) {
           values[field] = self.values[field]
         }
-      });
+      })
     }
 
 

spec/dao.spec.js

@@ -17,7 +17,8 @@ dialects.forEach(function(dialect) {
           self.sequelize = sequelize
           self.User      = sequelize.define('User', {
             username:  { type: DataTypes.STRING },
-            touchedAt: { type: DataTypes.DATE, defaultValue: DataTypes.NOW }
+            touchedAt: { type: DataTypes.DATE, defaultValue: DataTypes.NOW },
+            aNumber:   { type: DataTypes.INTEGER }
           })
         },
         onComplete: function(sequelize) {
@@ -59,5 +60,14 @@ dialects.forEach(function(dialect) {
         })
       })
     })
+
+    describe('save', function() {
+      it('takes zero into account', function(done) {
+        this.User.build({ aNumber: 0 }).save([ 'aNumber' ]).success(function(user) {
+          expect(user.aNumber).toEqual(0)
+          done()
+        })
+      })
+    })
   })
 })