Report printing refactor

[SchrodingersGat]

This PR presents a major refactoring of how we handle report templates. In particular, a lot of model duplication and API endpoint duplication is removed. This is a precursor to supporting reports in the new interface, and potentially expanding the functionality of the reporting framework into the future.

Note that this is a breaking change as we are removing a number of models, and also deleting a number of existing API endpoints

Related Issues

• Closes Report Generation for new interface #5882
• Closes Refactor tables and API for reports and labels #5841
• Related to Possible breaking changes for 1.0 #6417

Features / Updates

• Create new generic ReportTemplate database model
• Migrate all existing report template tables into this new one
• Reduce many report API endpoints to a single generic set

TODO

• Refactor label printing models / API in a similar fashion
• Commonize the "report context" data across labels / reports
• Allow template table(s) to be filtered by "model type"
• Update unit testing
• Add playwright testing for report and label printing via web interface
• Update documentation
• Pull "context" data directly into the documentation from the codebase
• Test that all CUI report printing functionality continues to function correctly
• Test that all CUI label printing functionality continues to function correctly
• Implement report printing in new PUI interface
• Implement label printing in new PUI interface
• refactor template editor in PUI to use new API
• Update python bindings to support new API endpoints - New printing api inventree-python#226
• Update python bindings again now that we have changed the plugin API - Update unit tests inventree-python#229
• Update app to support new API endpoints - Label printing fix inventree-app#489
• Update app again now that we have changed the plugin API - Print label key inventree-app#491
• Refactor "include_installed" option for stock report
• Refactor generate_filename method - ensure it works for reports and labels
• Get label printing working again (label size is not observed)
• Automatically add "default" label templates on launch
• Automatically add "detault" report templates on launch
• Ensure that both builtin "label printing" plugins still work
• Reimplement / refactor API endpoints for "printing" labels and reports with proper serializers
• Ensure backwards compatibility with existing label printer plugins
• Perform full migration run to ensure old labels and templates are migrated correctly
• Move templating db model mixin into report.mixins

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[matmair]

Looks promising! I am still convinced that reports and labels should be the same thing but we have to start somewhere.

[codecov]

Codecov Report

Attention: Patch coverage is 78.76712% with 217 lines in your changes missing coverage. Please review.

Project coverage is 83.21%. Comparing base (921bf91) to head (07ca9a1).
Report is 320 commits behind head on master.

Files	Patch %	Lines
src/backend/InvenTree/report/api.py	76.56%	45 Missing ⚠️
...nTree/report/migrations/0026_auto_20240422_1301.py	50.87%	28 Missing ⚠️
...nTree/report/migrations/0023_auto_20240421_0455.py	44.44%	20 Missing ⚠️
...rontend/src/components/buttons/PrintingActions.tsx	58.69%	18 Missing and 1 partial ⚠️
src/backend/InvenTree/report/models.py	88.81%	16 Missing ⚠️
src/backend/InvenTree/report/apps.py	75.00%	12 Missing ⚠️
...mponents/editors/TemplateEditor/TemplateEditor.tsx	0.00%	11 Missing ⚠️
...s/editors/TemplateEditor/PdfPreview/PdfPreview.tsx	0.00%	8 Missing ⚠️
src/frontend/src/tables/settings/TemplateTable.tsx	63.63%	7 Missing and 1 partial ⚠️
src/backend/InvenTree/stock/models.py	68.42%	6 Missing ⚠️
... and 24 more

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7074      +/-   ##
==========================================
- Coverage   84.07%   83.21%   -0.87%     
==========================================
  Files        1056     1069      +13     
  Lines       46440    46854     +414     
  Branches     1334     1376      +42     
==========================================
- Hits        39046    38989      -57     
- Misses       7055     7508     +453     
- Partials      339      357      +18     

Flag	Coverage Δ
backend	85.18% <82.10%> (-0.25%)	⬇️
pui	65.00% <60.25%> (-0.04%)	⬇️

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[SchrodingersGat]

@wolflu05 @matmair last remaining hurdle is the failing playwright test. The test runs successfully but gets stuck on "teardown". Any ideas? Really struggling on this one.

[SchrodingersGat]

@matmair @wolflu05 thanks for your help on this one. Merging in now, we have some time before 0.16.0 to work out any issues which may rise from such a significant diff.

[matmair]

Should we maybe open a follow up issue with all the future ideas for this area that were voiced here?

[SchrodingersGat]

Should we maybe open a follow up issue with all the future ideas for this area that were voiced here?

Yes I think that's a great idea