Ability to ignore constructor class map

[georgesjamous]

Adds the ability to ignore classMap when creating object. Object will be returned as an instance of ParseObject if ignoresClassMap is set to true.

My use case is i need to load a Session object from an already exported json object.
Parse.Object.fromJson({ className: '_Session', sessionToken: "r:123..", ...otherStuff })
Currently this will throw an error preventing readonly keys from being edited.

This should be safe since most restrictions are aleady being checked in server side.

[codecov]

Codecov Report

Merging #686 into master will not change coverage.
The diff coverage is 100%.

@@           Coverage Diff           @@
##           master     #686   +/-   ##
=======================================
  Coverage   85.69%   85.69%           
=======================================
  Files          48       48           
  Lines        3880     3880           
  Branches      882      884    +2     
=======================================
  Hits         3325     3325           
  Misses        555      555

Impacted Files	Coverage Δ
src/ParseObject.js	88.48% <100%> (ø)	⬆️

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[flovilmart]

Those features have a purpose I believe and I am not for mutating them not changing them.

I am not sure this is a change we want in the SDK, nor why it is necessary to change.

What alternatives did you consider?
What is the target goal, bigger picture?

[georgesjamous]

Its for something unrelated, I was checking the feasibilty of a readonly hook on _Session class in parse-server repo, it was failing becuase of ParseSession readonly key override, which was throwing error.

Anyway, i might have found another way.
Closing this, will reopen if needed with additional explanation.