Returns full modifications on PUT

spec/ParseAPI.spec.js

@@ -868,6 +868,50 @@ describe('miscellaneous', function() {
     });
   });
 
+  it('should return the updated fields on PUT', (done) => {
+    let obj = new Parse.Object('GameScore');
+    obj.save({a:'hello', c: 1, d: ['1'], e:['1'], f:['1','2']}).then(( ) => {
+      var headers = {
+        'Content-Type': 'application/json',
+        'X-Parse-Application-Id': 'test',
+        'X-Parse-REST-API-Key': 'rest',
+        'X-Parse-Installation-Id': 'yolo'
+      };
+      request.put({
+        headers: headers,
+        url: 'http://localhost:8378/1/classes/GameScore/'+obj.id,
+        body: JSON.stringify({
+          a: 'b',
+          c: {"__op":"Increment","amount":2},
+          d: {"__op":"Add", objects: ['2']},
+          e: {"__op":"AddUnique", objects: ['1', '2']},
+          f: {"__op":"Remove", objects: ['2']},
+          selfThing: {"__type":"Pointer","className":"GameScore","objectId":obj.id},
+        })
+      }, (error, response, body) => {
+        body = JSON.parse(body);
+        expect(body.a).toBeUndefined();
+        expect(body.c).toEqual(3); // 2+1
+        expect(body.d.length).toBe(2);
+        expect(body.d.indexOf('1') > -1).toBe(true);
+        expect(body.d.indexOf('2') > -1).toBe(true);
+        expect(body.e.length).toBe(2);
+        expect(body.e.indexOf('1') > -1).toBe(true);
+        expect(body.e.indexOf('2') > -1).toBe(true);
+        expect(body.f.length).toBe(1);
+        expect(body.f.indexOf('1') > -1).toBe(true);
+        // return nothing on other self
+        expect(body.selfThing).toBeUndefined();
+        // updatedAt is always set
+        expect(body.updatedAt).not.toBeUndefined();
+        done();
+      });
+    }).fail((err) => {
+      fail('Should not fail');
+      done();
+    })
+  })
+
   it('test cloud function error handling', (done) => {
     // Register a function which will fail
     Parse.Cloud.define('willFail', (req, res) => {

src/Controllers/DatabaseController.js

@@ -139,6 +139,8 @@ DatabaseController.prototype.untransformObject = function(
 //         one of the provided strings must provide the caller with
 //         write permissions.
 DatabaseController.prototype.update = function(className, query, update, options) {
+
+  const originalUpdate = update;
   // Make a copy of the object, so we don't mutate the incoming data.
   update = deepcopy(update);
 
@@ -179,12 +181,15 @@ DatabaseController.prototype.update = function(className, query, update, options
       }
 
       let response = {};
-      let inc = mongoUpdate['$inc'];
-      if (inc) {
-        Object.keys(inc).forEach(key => {
+      Object.keys(originalUpdate).forEach(key => {
+        let keyUpdate = originalUpdate[key];
+        // determine if that was an op
+        if (keyUpdate && typeof keyUpdate === 'object' && keyUpdate.__op
+          && ['Add', 'AddUnique', 'Remove', 'Increment'].indexOf(keyUpdate.__op) > -1) {
+          // only valid ops that produce an actionable result
           response[key] = result[key];
-        });
-      }
+        }
+      });
       return response;
     });
 };
@@ -474,7 +479,7 @@ DatabaseController.prototype.reduceRelationKeys = function(className, query) {
 
 DatabaseController.prototype.addInObjectIdsIds = function(ids, query) {
   if (typeof query.objectId == 'string') {
-    // Add equality op as we are sure 
+    // Add equality op as we are sure
     // we had a constraint on that one
     query.objectId = {'$eq': query.objectId};
   }