refactor(session):remove dup queries,refactorcode

[hweihwang]

📝 Summary

• Resolves: Dirty table reads to check #5325 (comment)

🏁 Checklist

• Remove duplicated query when calling /save endpoint
• Refactor the code (Remove duplicate code, duplicated call to function, more solid)

[github-actions]

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[max-nextcloud]

First of all... I am sorry for taking so long to review this @hweihwang . I needed some quite time that really allowed me to focus on it.

I appreciate your contribution 🎉 .

[max-nextcloud]

This always runs - even if non of the Require... attributes were set.

Before we'd only get the document if any of the attributes was there.
Is this intentional?

I don't think it matters in practice as I assume all ISessionAwareControllers require at least one of them. Just want to point out a change in behavior that i am seeing here.