Aftermath of Crap Contractor - Can I hang from this?

[Elaine E.]

We hired a contractor that patched our recessed light box in order to have a flush ceiling a few weeks ago. I know this patch job looks like crap, and we seriously regret doing this project in the first place.

But moving forward, we went to hang a 4lb fixture today, but discovered there's no stud or support under where they patched it and where they pulled the wires through. Is this a code violation? 

It possible to hang this into just drywall? Or do I need to tear it back open and install proper supports?

[Jillian Kemmerer]

Hi Elaine - 
I would probably find someone who could add some sort of connecting post for support with as little damage as possible. It's hard to find good workers at decent rates right now, but if you hang something and it starts falling and causing damage, you're going to have to pay anyway. Might as well pay to have it done right at the beginning, and have one less thing to worry about...