Don't update virtual attributes in Model.update. Fixes #2860

changelog.md

 # Next
+- [BUG] Don't update virtual attributes in Model.update. Fixes [#2860](https://github.com/sequelize/sequelize/issues/2860)
 - [BUG] Fix for newlines in hstore [#3383](https://github.com/sequelize/sequelize/issues/3383)
 - [BUG] Fix unique key handling in Model.update [#3474](https://github.com/sequelize/sequelize/issues/3474)
 - [BUG] Fix issue with Model.create() using fields not specifying and non-incremental primary key [#3458](https://github.com/sequelize/sequelize/issues/3458)

lib/model.js

@@ -1617,6 +1617,8 @@ module.exports = (function() {
           delete values[key];
         }
       });
+    } else {
+      options.fields = Object.keys(this.tableAttributes);
     }
 
     if (this._timestampAttributes.updatedAt) {
@@ -1722,14 +1724,8 @@ module.exports = (function() {
         return [results.length, results];
       }
 
-      Object.keys(valuesUse).forEach(function (attr) {
-        if (self.rawAttributes[attr].field && self.rawAttributes[attr].field !== attr) {
-          valuesUse[self.rawAttributes[attr].field] = valuesUse[attr];
-          delete valuesUse[attr];
-        }
-      });
-
-      Utils.mapOptionFieldNames(options, self);
+      valuesUse = Utils.mapValueFieldNames(valuesUse, options.fields, self);
+      options = Utils.mapOptionFieldNames(options, self);
 
       // Run query to update all rows
       return self.QueryInterface.bulkUpdate(self.getTableName(options), valuesUse, options.where, options, self.tableAttributes).then(function(affectedRows) {

test/integration/model.test.js

@@ -944,6 +944,30 @@ describe(Support.getTestDialectTeaser('Model'), function() {
       });
     });
 
+    it('does not update virtual attributes', function () {
+      var User = this.sequelize.define('User', {
+        username: Sequelize.STRING,
+        virtual: Sequelize.VIRTUAL
+      });
+
+      return User.create({
+        username: 'jan'
+      }).then(function () {
+        return User.update({
+          username: 'kurt',
+          virtual: 'test'
+        }, {
+          where: {
+            username: 'jan'
+          }
+        });
+      }).then(function () {
+        return User.findAll();
+      }).spread(function (user) {
+        expect(user.username).to.equal('kurt');
+      });
+    });
+
     it('sets updatedAt to the current timestamp', function() {
       var data = [{ username: 'Peter', secretValue: '42' },
                   { username: 'Paul', secretValue: '42' },