[baraline]

Problem

GLPI 12.0.1 sends ola_ttr and ola_tto as an empty array, [], on every ticket that has no OLA. Its own v2.3 OpenAPI contract, like GLPI 11, declares a nullable {"id", "name"} object for both fields.

GetTicket types these fields IdNameRef | None, so it refuses the array. Against a GLPI 12 server, get_ticket, and every search that returns such a ticket, raises ValidationError.

Change

• All six SLA and OLA references of GetTicket go through one before-validator that reads an empty list as None: sla_ttr, sla_tto, sla_level_ttr, ola_ttr, ola_tto and ola_level_ttr.
• Other values pass through unchanged, so an object and null read as before.
• The SLA fields are covered too, even though only the OLA fields were seen as []. They share the reference shape, so the same quirk on any of them can't fail a ticket read.
• Write models are untouched.
• Version bumped to 0.6.9, with a CHANGELOG entry.

Evidence

Measured against a GLPI 12.0.1 server:

• Every ticket came back with ola_ttr: [] and ola_tto: [], including tickets that carry an SLA. The SLA fields came back as an object or null.
• The same reads against GLPI 11.0.8 return null for the OLA fields.
• An RSQL filter on ola_ttr.id answers HTTP 500 on 12.0.1, so I couldn't observe what a populated OLA looks like there. This change makes no assumption about it.

Tests

• New tests, parametrised over all six fields:
  • [] reads as None.
  • An object and null read as before.
• A GLPI 12 ticket shape (an SLA, no OLA) reads correctly.
• Mutation check: reverting a single field to plain IdNameRef | None fails exactly that field's [] case.
• A saved GLPI 12 ticket payload validates without any workaround.
• Local checks all pass:
  • pytest -m "not integration" -W error::RuntimeWarning: 2256 passed, coverage 98.07%
  • ruff check, ruff format --check, strict mypy
  • unasync_build.py --check
  • sphinx -W

🤖 Generated with Claude Code

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.06%. Comparing base (af750ee) to head (8e9bd4e).
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Additional details and impacted files

@@           Coverage Diff           @@
##             main      #48   +/-   ##
=======================================
  Coverage   98.06%   98.06%           
=======================================
  Files          94       94           
  Lines        3719     3726    +7     
=======================================
+ Hits         3647     3654    +7     
  Misses         72       72           

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