[ckan-changes] [ckan/ckan] e9adf7: Fix resource.url being saved as "___"

[David Read]

  Branch: refs/heads/5031-fix-res-url-after-werkzeug-upgrade
  Home:   https://github.com/ckan/ckan
  Commit: e9adf793e5eb3989e23b9c152d5898bb1adb015d
      https://github.com/ckan/ckan/commit/e9adf793e5eb3989e23b9c152d5898bb1adb015d
  Author: David Read <david.read at hackneyworkshop.com>
  Date:   2019-10-18 (Fri, 18 Oct 2019)

  Changed paths:
    M ckan/lib/uploader.py
    M ckan/tests/controllers/test_package.py
    A ckan/tests/lib/test_uploader.py

  Log Message:
  -----------
  Fix resource.url being saved as "___"

Fixes #5031

werkzeug upgrade 0.14 to 0.15 means that when you submit the resource form with a resource url (not an upload), and the uploader is enabled, then the 'upload' parameter value changes from being u'' to: FileStorage(filename=u''). This half-confused ResourceUpload into thinking that it should upload something and it stored the url as '___' (!). This is fixed by essentially testing bool(resource['upload']) because bool(FileStorage(filename=u'')) == False.

I was unable to test this using webtest - it didn't submit the form like my real browser does. So I just add a test for ResourceUpload that shows the issue and prevents it regressing in future.