enable single field instead of array

lib/dao.js

@@ -241,6 +241,7 @@ module.exports = (function() {
     var identifier = this.__options.hasPrimaryKeys ? this.primaryKeyValues : this.id,
     var identifier = this.__options.hasPrimaryKeys ? this.primaryKeyValues : this.id,
       values = {}
       values = {}
 
 
+    if (!Utils._.isArray(fields)) fields = [fields];
     if (count === undefined) count = 1;
     if (count === undefined) count = 1;
 
 
     Utils._.each(fields, function (field) {
     Utils._.each(fields, function (field) {

spec/dao.spec.js

@@ -40,7 +40,7 @@ describe(Helpers.getTestDialectTeaser("DAO"), function() {
       this.User.create({ id: 1, aNumber: 0 }).done(done)
       this.User.create({ id: 1, aNumber: 0 }).done(done)
     });
     });
 
 
-    it('', function (done) {
+    it('with array', function (done) {
       var self = this;
       var self = this;
 
 
       // Select something
       // Select something
@@ -55,6 +55,21 @@ describe(Helpers.getTestDialectTeaser("DAO"), function() {
       });
       });
     });
     });
 
 
+    it('with single field', function (done) {
+      var self = this;
+
+      // Select something
+      this.User.find(1).done(function (err, user1) {
+        user1.increment('aNumber', 2).done(function (err, user2) {
+
+          self.User.find(1).done(function (err, user3) {
+            expect(user3.aNumber).toBe(user1.aNumber + 2);
+            done();
+          });
+        });
+      });
+    });
+
     it('should still work right with other concurrent updates', function (done) {
     it('should still work right with other concurrent updates', function (done) {
       var self = this;
       var self = this;
       // Select something
       // Select something
@@ -99,7 +114,7 @@ describe(Helpers.getTestDialectTeaser("DAO"), function() {
       this.User.create({ id: 1, aNumber: 0 }).done(done)
       this.User.create({ id: 1, aNumber: 0 }).done(done)
     });
     });
 
 
-    it('', function (done) {
+    it('with array', function (done) {
       var self = this;
       var self = this;
 
 
       // Select something
       // Select something
@@ -114,6 +129,21 @@ describe(Helpers.getTestDialectTeaser("DAO"), function() {
       });
       });
     });
     });
 
 
+    it('with single field', function (done) {
+      var self = this;
+
+      // Select something
+      this.User.find(1).done(function (err, user1) {
+        user1.decrement('aNumber', 2).done(function (err, user2) {
+
+          self.User.find(1).done(function (err, user3) {
+            expect(user3.aNumber).toBe(user1.aNumber - 2);
+            done();
+          });
+        });
+      });
+    });
+
     it('should still work right with other concurrent updates', function (done) {
     it('should still work right with other concurrent updates', function (done) {
       var self = this;
       var self = this;
       // Select something
       // Select something