AttributeError: 'NoneType' object has no attribute 'astimezone' from @@querybuilder_html_results

[zopyx]

Plone 5.2.1

Create a new collection and select a date criteria and switch to a relative date.
This causes an error related to @@querybuilder_html_results:

2020-06-02 14:05:13,628 ERROR   [Zope.SiteErrorLog:251][waitress] 1591099513.62749550.1922243698514261 http://dev2.zopyx.de:20081/plone_portal/@@querybuilder_html_results
Traceback (innermost last):
  Module ZPublisher.WSGIPublisher, line 156, in transaction_pubevents
  Module ZPublisher.WSGIPublisher, line 338, in publish_module
  Module ZPublisher.WSGIPublisher, line 256, in publish
  Module ZPublisher.mapply, line 85, in mapply
  Module ZPublisher.WSGIPublisher, line 62, in call_object
  Module plone.app.querystring.querybuilder, line 107, in html_results
  Module plone.app.querystring.querybuilder, line 98, in __call__
  Module plone.app.querystring.querybuilder, line 170, in _makequery
  Module Products.CMFPlone.CatalogTool, line 457, in searchResults
  Module Products.ZCatalog.ZCatalog, line 611, in searchResults
  Module Products.ZCatalog.Catalog, line 1091, in searchResults
  Module Products.ZCatalog.Catalog, line 634, in search
  Module Products.ZCatalog.Catalog, line 564, in _search_index
  Module Products.PluginIndexes.unindex, line 483, in query_index
  Module Products.DateRecurringIndex.index, line 157, in _convert
  Module plone.event.utils, line 551, in dt2int
  Module plone.event.utils, line 253, in utc
AttributeError: 'NoneType' object has no attribute 'astimezone'

[petschki]

Just got bitten by this too. I fixed it by converting my start query from string to datetime object. Obviously the pytd call in utils here https://github.com/plone/plone.event/blob/master/plone/event/utils.py#L252 gets None if you pass in a date string.

/cc @thet you may have a idea how to fix this?

[gogobd]

Just ran into the same issue today...

[mauritsvanrees]

The PR from @gogobd was merged and I released plone.event 1.4.2 with it. Thanks!

[mauritsvanrees]

This version will be in the Plone 5.2.11 and 6.0.1 releases that I am starting to prepare.