https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=40850

Martin Renvoize (ashimema) <[email protected]> changed:

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 Attachment #186734|0                           |1
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--- Comment #4 from Martin Renvoize (ashimema) 
<[email protected]> ---
Created attachment 186755
  -->
https://bugs.koha-community.org/bugzilla3/attachment.cgi?id=186755&action=edit
Bug 40850: Add `Koha::ILL::Request->add_or_update_attributes`

Currently, ILL backends and plugins must implement custom logic to update
existing extended attributes on ILL requests, as the core extended_attributes()
method only supports adding new attributes and throws duplicate key errors when
attempting to update existing ones. This has led to code duplication across
multiple ILL plugins (Rapido, INNReach, SLNP) that all implement identical
add_or_update_attributes() methods, and forces the Standard backend to use
error-prone patterns when managing request metadata.

This patch adds add_or_update_attributes() method to Koha::ILL::Request that
provides a safe, efficient way to add new attributes or update existing ones
in a single operation, eliminating duplicate key errors and reducing code
duplication.

The method:
- Accepts a hashref of attribute type => value pairs
- Updates existing attributes only when values actually change
- Creates new attributes when they don't exist
- Skips undefined or empty values to avoid constraint errors
- Uses transactions for atomicity
- Returns the request object for method chaining

Test plan:
1. Apply patch
2. Run:
   $ ktd --shell
  k$ prove t/db_dependent/Koha/ILL/Request.t
=> SUCCESS: Tests pass! New method works correctly
3. Test adding new attributes works
4. Test updating existing attributes works
5. Test mixed add/update operations work
6. Test empty/undefined values are skipped
7. Sign off :-D

Signed-off-by: Martin Renvoize <[email protected]>

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