Jira subtasks causes KeyError

[tjaartvdwalt]

My Jira projects do not return subtasks, which causes the exception pasted below. I can fix this issue by wrapping the return statement on jira.py line 267 in an if condition.

What is the right solution here? Is it a configuration issue on my side, or should I submit a PR?

Traceback (most recent call last):
  File "/usr/bin/bugwarrior-pull", line 33, in <module>
    sys.exit(load_entry_point('bugwarrior==1.8.0', 'console_scripts', 'bugwarrior-pull')())
  File "/usr/lib/python3.9/site-packages/click/core.py", line 1137, in __call__
    return self.main(*args, **kwargs)
  File "/usr/lib/python3.9/site-packages/click/core.py", line 1062, in main
    rv = self.invoke(ctx)
  File "/usr/lib/python3.9/site-packages/click/core.py", line 1404, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/lib/python3.9/site-packages/click/core.py", line 763, in invoke
    return __callback(*args, **kwargs)
  File "/usr/lib/python3.9/site-packages/bugwarrior/command.py", line 73, in pull
    synchronize(issue_generator, config, main_section, dry_run)
  File "/usr/lib/python3.9/site-packages/bugwarrior/db.py", line 360, in synchronize
    issue_dict = dict(issue)
  File "/usr/lib/python3.9/site-packages/bugwarrior/services/__init__.py", line 414, in keys
    return list(self.__iter__())
  File "/usr/lib/python3.9/site-packages/bugwarrior/services/__init__.py", line 409, in __iter__
    record = self.get_taskwarrior_record()
  File "/usr/lib/python3.9/site-packages/bugwarrior/services/__init__.py", line 305, in get_taskwarrior_record
    self._taskwarrior_record = self.to_taskwarrior()
  File "/usr/lib/python3.9/site-packages/bugwarrior/services/jira.py", line 144, in to_taskwarrior
    self.SUBTASKS: self.get_subtasks(),
  File "/usr/lib/python3.9/site-packages/bugwarrior/services/jira.py", line 267, in get_subtasks
    if not self.record['fields']['subtasks']:
KeyError: 'subtasks'

[djmitche]

It sounds like a good choice for a PR!

[ryneeverett]

I'd prefer self.record['fields'].get('subtasks', []) over an if-statement.