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Error 500 in talk detail of talks scheduled multiple times #730

shoetten opened this issue Jun 19, 2019 · 1 comment


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commented Jun 19, 2019

Current Behavior

Pretalx throws a HTTP 500, when trying to view the talk details of a talk, which is scheduled multiple times (via a slot_count >= 2).

See relevant logs
ERROR 2019-06-18 16:50:47,289 django.request log Internal Server Error: /event/talk/UGYTTW/
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/django/core/handlers/", line 34, in inner
    response = get_response(request)
  File "/usr/local/lib/python3.7/site-packages/django/core/handlers/", line 115, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "/usr/local/lib/python3.7/site-packages/django/core/handlers/", line 113, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/usr/local/lib/python3.7/site-packages/django/views/generic/", line 71, in view
    return self.dispatch(request, *args, **kwargs)
  File "/usr/local/lib/python3.7/site-packages/django/contrib/auth/", line 83, in dispatch
    if not self.has_permission():
  File "/pretalx/src/pretalx/common/mixins/", line 174, in has_permission
    result = super().has_permission()
  File "/usr/local/lib/python3.7/site-packages/rules/contrib/", line 47, in has_permission
    obj = self.get_permission_object()
  File "/pretalx/src/pretalx/agenda/views/", line 90, in get_permission_object
    return self.submission
  File "/usr/local/lib/python3.7/site-packages/", line 50, in __get__
    return self.func.__get__(instance, cls) if hasattr(self.func, '__get__') else self.func
  File "/usr/local/lib/python3.7/site-packages/django/utils/", line 80, in __get__
    res = instance.__dict__[] = self.func(instance)
  File "/pretalx/src/pretalx/agenda/views/", line 87, in submission
    return self.get_object()
  File "/pretalx/src/pretalx/agenda/views/", line 74, in get_object
  File "/usr/local/lib/python3.7/site-packages/django/db/models/", line 412, in get
    (self.model._meta.object_name, num)
pretalx.submission.models.submission.Submission.MultipleObjectsReturned: get() returned more than one Submission -- it returned 2!

Expected Behavior

Pretalx shows the talk detail view.

Steps to Reproduce

  1. Create a submission and allow it to be scheduled multiple times.
  2. Schedule it more than once in the schedule and release a version.
  3. Try to access the talk details from the public schedule.


We have multiple talks that happen four days in a row, so we want to show those on 4 different days in the schedule.

Your Environment

  • Version used: 1.0.2

  • Environment name and version:
    python 3.7 inside a Docker Container
    MariaDB 10.3

  • Operating System and version (desktop or mobile):
    Arch Linux on the Client and the python:3.7 docker base image on the server.

  • Link to your instance, if in production:
    Production Instance
    But be aware, we removed the duplicated talks (and replaced them by generic ones), to that the details view works as intended again.

@rixx rixx added the issue:bug 🐛 label Jun 20, 2019

@rixx rixx closed this in 1790ee4 Jun 26, 2019

rixx added a commit that referenced this issue Jun 26, 2019


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commented Jun 26, 2019

This issue is fixed in the 1.0.3 bugfix release.

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