# Which Problems Are Solved
As part of https://github.com/zitadel/zitadel/issues/9599 to push to
move to a relational db table model, this is the migration of the
settings
# Additional Changes
I had to add 2 non source code files
`backend/v3/storage/database/events_testing/font.otf` and
`backend/v3/storage/database/events_testing/picture.png`, these are used
as part of the reduce tests, hence why they're sourced inside
`backend/v3/storage/database/events_testing/settings_instance_test.go`
- Closes https://github.com/zitadel/zitadel/issues/10207
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Co-authored-by: adlerhurst <[email protected]>
Co-authored-by: Copilot <[email protected]>
Co-authored-by: Tim Möhlmann <[email protected]>
Co-authored-by: Stefan Benz <[email protected]>
# Which Problems Are Solved
Relational table's primary keys are part of the SQL table definition.
However, by abstraction through the repository interfaces callers
(service layer) have no clear understanding of the primary key definion.
This might lead to confusion during implementation:
- The repository makes a sanity check on required conditions before
query execution and returns an error if the condition was not met.
- When a Get method is executed, an error is returned if not exactly one
row is found. Get replaces the legacy GetXxxByID methods we have on
projections. However, a list of flexible conditions can be passed.
- Operations like UPDATE and DELETE should often only affect a single
row, identified by the primary key. If the primary key conditions are
missing an error is returned.
Because there is no "type safety" enforced here, the errors are returned
during runtime. When all possible combinations of API arguments are not
properly tested such errors are actually bugs in the experience of the
end-user. (The API should do it's own input validation, but a
programmer's error is easily made).
# How the Problems Are Solved
Add `PrimaryKeyColumns` and `PrimaryKeyCondition` to existing repository
intefaces.
# Additional Changes
- Where reducers already used repositories, the PrimaryKeyConditions are
used where possible.
# Additional Context
- Part of
https://github.com/zitadel/zitadel/wiki/Decision-Log#expose-primary-key-definition-in-repository-interfaces
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Co-authored-by: Marco A. <[email protected]>
SilvanandGitHub
