can't have an empty field

[Josh-Woodcock]

I am working on a project that has start and end date fields. Ideally the end date field would be optional.

However PartialDate won't accept an empty string, or None despite what it says in the documentation; or null=True.

These are the kind of errors I have received -

["'' is not a valid date string (YYYY, YYYY-MM, YYYY-MM-DD)"]

[lorinkoz]

Empty string should not be valid.

For empty dates None should be used. Is the partial date field null=True?

[Josh-Woodcock]

Tried again but still get an error, reproduced below with identifiying information taken out. It appears the error lies in the pareDate function when it receives a blank field.

  ValidationError at /admin/pages/23/edit/
  ["'' is not a valid date string (YYYY, YYYY-MM, YYYY-MM-DD)"]
  Request Method: GET
  Request URL:    http://localhost:8000/admin/pages/23/edit/?next=/admin/dialectics/journal/
  Django Version: 3.1.7
  Exception Type: ValidationError
  Exception Value:    
  ["'' is not a valid date string (YYYY, YYYY-MM, YYYY-MM-DD)"]
  Exception Location: /wagtail-env/lib/python3.8/site-packages/partial_date/fields.py, line 105, in parseDate
  Python Executable:  /wagtail-env/bin/python
  Python Version: 3.8.10

The field is written as ->

  active_end = PartialDateField(
          blank=True,
          null=True,
      )

If it makes any difference we are using Wagtail not pure Django.

[lorinkoz]

Please make sure that your forms or any other interface to the useris properly converting the "empty user input" to None instead of "".

[xjlin0]

I encounter the same thing and this is default Django admin page, I have to add blank=True to make the admin page saving work, and convert empty string to None in model's save() method. It maybe more convenient if django_partial_date can ignore the empty string.

https://stackoverflow.com/a/6993885/4257237