Deserialization improvements

[jamalex]

Summary

Some records at times fail to deserialize on KDP (due to missing data, specifically foreign key referents). Added some tests that uncovered a potential cause, and fixed that, and then also added a column called deserialization_error on the Store model to track issues with deserialization, to support debugging and to be able to skip them for a "lighter weight" deserialization as desired.

TODO

• Have tests been written for the new code?
• Has documentation been written/updated?
• New dependencies (if any) added to requirements file

Issues addressed

Addresses issues with bulk deserialization seen on KDP.

[codecov-commenter]

Codecov Report

Merging #84 into master will decrease coverage by 0.61%.
The diff coverage is 83.33%.

@@            Coverage Diff             @@
##           master      #84      +/-   ##
==========================================
- Coverage   83.46%   82.85%   -0.62%     
==========================================
  Files          31       37       +6     
  Lines        2316     2385      +69     
  Branches      297      301       +4     
==========================================
+ Hits         1933     1976      +43     
- Misses        286      309      +23     
- Partials       97      100       +3     

[bjester]

The only thing that confused me initially was that _deserialize_store_model catches and re-raises the error.

[jamalex]

The only thing that confused me initially was that _deserialize_store_model catches and re-raises the error.

Yeah, not immediately obvious from looking at the code what's going on there. I'll add a couple more comments to that section.