[#2570] Add multi-backend support to ZGW iotypes importer

[swrichards]

No description provided.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 7.95455% with 81 lines in your changes missing coverage. Please review.

Project coverage is 44.23%. Comparing base (b6ffbed) to head (a113ac1).
Report is 4 commits behind head on develop.

Files	Patch %	Lines
...inwoner/openzaak/tests/test_zgw_imports_iotypes.py	5.45%	52 Missing ⚠️
...inwoner/openzaak/tests/test_zgw_imports_command.py	5.55%	17 Missing ⚠️
src/open_inwoner/openzaak/models.py	27.27%	8 Missing ⚠️
src/open_inwoner/openzaak/zgw_imports.py	0.00%	3 Missing ⚠️
src/open_inwoner/openzaak/admin.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1284      +/-   ##
===========================================
- Coverage    44.24%   44.23%   -0.01%     
===========================================
  Files          972      973       +1     
  Lines        35577    35594      +17     
===========================================
+ Hits         15740    15746       +6     
- Misses       19837    19848      +11     

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[pi-sigma]

Looking good. One small question/suggestion about the messages, though not sure if it's feasible.

[pi-sigma]

Can we distinguish between these configs as in the case of the catalogi messages above (e.g. by displaying the netloc of the service api root or something else)?. It's quite useful in the catalogus case.

[swrichards]

Fair point, added the catalogus base url across the objects: see what you think.