Pointer fields can not be created in beforeSave trigger

[guptasachin25]

For implementation related questions or technical support, please refer to the Stack Overflow and Server Fault communities.

Make sure these boxes are checked before submitting your issue -- thanks for reporting issues back to Parse Server!

• [x ] You've met the prerequisites.
• [ x] You're running the latest version of Parse Server.
• [ x] You've searched through existing issues. Chances are that your issue has been reported or resolved before.

Environment Setup

"express": "~4.11.x",
"kerberos": "~0.0.x",
"parse": "~1.8.0",
"parse-server": "~2.2.0",

Steps to reproduce

1. Create one object TestObject with single value with given beforeSave trigger.
2. beforeSave Trigger creates a pointer field if not available
3. Fetch same object and try to change non_pointer key and save
4. BeforeSave trigger doesn't find old pointer field and recreated new pointer field.

exports.beforeSaveTestObject = request => {
   console.log('before Save test Object');
   var obj = request.object;
   console.log(obj);
   console.log(obj.get('point'));
   if (obj.get('point')) {
     return;
   }
   console.log('point not found');
   var TestObject1 = Parse.Object.extend('TestObject1');
   var newObj = new TestObject1({'key1': 1});

   return newObj.save().then((newObj) => {
     obj.set('point' , newObj);
   });
 }

Logs/Trace

Found a pointer column not in the schema, dropping it. TestObject point
Found a pointer column not in the schema, dropping it. TestObject point
before Save test Object
ParseObject { _objCount: 0, className: 'TestObject', id: 'w93hLKA3VZ' }
undefined
point not found

[guptasachin25]

I did investigated this issue I found that any schema validation is done before beforeSave. For new objects schema is created during this step. If we add any field to beforeSave that is never updated in schema. I verified in mongo database SCHEMA table.

If we add schema validation after beforeSaveTrigger ran this works fine.