Add checks before accessing database

[FredAns]

We need to check if the connection to a DB Server has been initiated before accessing it.

[codecov]

Codecov Report

Merging #1119 (632bd8a) into main (beb9c22) will increase coverage by 3.35%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #1119      +/-   ##
==========================================
+ Coverage   74.62%   77.97%   +3.35%     
==========================================
  Files          43       43              
  Lines        6734     6760      +26     
==========================================
+ Hits         5025     5271     +246     
+ Misses       1709     1489     -220     

[germa89]

I will review it tomorrow.

Btw, you could use a decorator to avoid having to write the same stuff many times.

[FredAns]

I will review it tomorrow.

Btw, you could use a decorator to avoid having to write the same stuff many times.

Thanks German. Don't hesitate to suggest changes in my code. I just want to add some checks before we try to access to the DB Client stub.

[germa89]

LGTM.

I have created a decorator which you can attach to any method/property, and it will check if DB is alive in the DB object or element object.

[germa89]

@FredAns is this still a draft?? Or can we merge?

[akaszynski]

@FredAns is this still a draft?? Or can we merge?

Calling this good. v21.2.1 failed, I've restarted that.

Note: v21.2.1 fails seems to have a higher failure rate relative to v21.1.1 and v22.1.0. Let's keep that in mind is we want to skip over it for testing. I feel that if we can test before and after v21.2.1, we can ensure backwards compatibility while eliminating a flaky test.