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Run exporters in repeatable read by default (Z#23173095) (#5500)

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* Run exporters in repeatable read by default (Z#23173095)

* Update src/pretix/helpers/database.py

Co-authored-by: Richard Schreiber <schreiber@rami.io>

* Rename parameter, add test

* Do not run during tests

---------

Co-authored-by: Richard Schreiber <schreiber@rami.io>
This commit is contained in:
Raphael Michel
2025-10-06 10:38:19 +02:00
committed by GitHub
parent 42b1010c36
commit 85a9a3caa6
11 changed files with 115 additions and 8 deletions
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12
src/pretix/base/exporter.py
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@@ -105,6 +105,18 @@ class BaseExporter:
"""
return False
@property
def repeatable_read(self) -> bool:
"""
If ``True``, this exporter will be run in a REPEATABLE READ transaction. This ensures consistent results for
all queries performed by the exporter, but creates a performance burden on the database server. We recommend to
disable this for exporters that take very long to run and do not rely on this behavior, such as export of lists
to CSV files.
Defaults to ``True`` for now, but default may change in future versions.
"""
return True
@property
def identifier(self) -> str:
"""