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Add signal quota_availability

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Raphael Michel
2019-06-18 16:52:01 +02:00
parent 819dd7eee6
commit 26a96f107f
5 changed files with 41 additions and 1 deletions
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17
src/pretix/base/signals.py
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@@ -524,3 +524,20 @@ a ``subevent`` argument which might be none and you are expected to return a lis
``pretix.base.timeline.TimelineEvent``, which is a ``namedtuple`` with the fields ``event``, ``subevent``,
``datetime``, ``description`` and ``edit_url``.
"""
quota_availability = EventPluginSignal(
providing_args=['quota', 'result', 'count_waitinglist']
)
"""
This signal allows you to modify the availability of a quota. You are passed the ``quota`` and an
``availability`` result calculated by pretix code or other plugins. ``availability`` is a tuple
with the first entry being one of the ``Quota.AVAILABILITY_*`` constants and the second entry being
the number of available tickets (or ``None`` for unlimited). You are expected to return a value
of the same time. The parameter ``count_waitinglists`` specifies whether waiting lists should be taken
into account.
**Warning: Use this signal with great caution, it allows you to screw up the performance of the
system really bad.** Also, keep in mind that your response is subject to caching and out-of-date
quotas might be used for display (not for actual order processing).
"""