Haystack + Whoosh throwing root:Error updating <appname> using default

[davegri]

Django 1.8.4

django-haystack 2.4.0

Whoosh 2.7.0

python manage.py rebuild_index                                                                                                                                     ⏎ master ✖ ✱ ◼

WARNING: This will irreparably remove EVERYTHING from your search index in connection 'default'.
Your choices after this are to restore from backups or rebuild via the `rebuild_index` command.
Are you sure you wish to continue? [y/N] y
Removing all documents from your index because you said so.
All documents removed.
Indexing 1934 images
ERROR:root:Error updating crawlers using default 
Traceback (most recent call last):
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/haystack/management/commands/update_index.py", line 188, in handle_label
    self.update_backend(label, using)
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/haystack/management/commands/update_index.py", line 233, in update_backend
    do_update(backend, index, qs, start, end, total, verbosity=self.verbosity, commit=self.commit)
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/haystack/management/commands/update_index.py", line 96, in do_update
    backend.update(index, current_qs, commit=commit)
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/haystack/backends/whoosh_backend.py", line 196, in update
    doc = index.full_prepare(obj)
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/haystack/indexes.py", line 212, in full_prepare
    self.prepared_data = self.prepare(obj)
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/haystack/indexes.py", line 203, in prepare
    self.prepared_data[field.index_fieldname] = field.prepare(obj)
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/haystack/fields.py", line 159, in prepare
    return self.convert(super(CharField, self).prepare(obj))
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/haystack/fields.py", line 106, in prepare
    return current_object()
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/django/db/models/fields/related.py", line 888, in __call__
    manager = getattr(self.model, kwargs.pop('manager'))
KeyError: 'manager'
Traceback (most recent call last):
  File "manage.py", line 10, in <module>
    execute_from_command_line(sys.argv)
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/django/core/management/__init__.py", line 338, in execute_from_command_line
    utility.execute()
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/django/core/management/__init__.py", line 330, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/django/core/management/base.py", line 393, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/django/core/management/base.py", line 444, in execute
    output = self.handle(*args, **options)
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/haystack/management/commands/rebuild_index.py", line 26, in handle
    call_command('update_index', **options)
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/django/core/management/__init__.py", line 120, in call_command
    return command.execute(*args, **defaults)
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/django/core/management/base.py", line 444, in execute
    output = self.handle(*args, **options)
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/haystack/management/commands/update_index.py", line 183, in handle
    return super(Command, self).handle(*items, **options)
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/django/core/management/base.py", line 622, in handle
    label_output = self.handle_label(label, **options)
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/haystack/management/commands/update_index.py", line 188, in handle_label
    self.update_backend(label, using)
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/haystack/management/commands/update_index.py", line 233, in update_backend
    do_update(backend, index, qs, start, end, total, verbosity=self.verbosity, commit=self.commit)
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/haystack/management/commands/update_index.py", line 96, in do_update
    backend.update(index, current_qs, commit=commit)
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/haystack/backends/whoosh_backend.py", line 196, in update
    doc = index.full_prepare(obj)
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/haystack/indexes.py", line 212, in full_prepare
    self.prepared_data = self.prepare(obj)
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/haystack/indexes.py", line 203, in prepare
    self.prepared_data[field.index_fieldname] = field.prepare(obj)
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/haystack/fields.py", line 159, in prepare
    return self.convert(super(CharField, self).prepare(obj))
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/haystack/fields.py", line 106, in prepare
    return current_object()
  File "/home/david/.virtualenvs/stocksearch/lib/python3.4/site-packages/django/db/models/fields/related.py", line 888, in __call__
    manager = getattr(self.model, kwargs.pop('manager'))
KeyError: 'manager'

[acdha]

Do you have a reproducible testcase for this? Based on the code in

django-haystack/haystack/fields.py

Lines 82 to 106 in 6b61dc0

	attrs = self.model_attr.split('__')
	current_object = obj
	for attr in attrs:
	if not hasattr(current_object, attr):
	raise SearchFieldError("The model '%s' does not have a model_attr '%s'." % (repr(current_object), attr))
	current_object = getattr(current_object, attr, None)
	if current_object is None:
	if self.has_default():
	current_object = self._default
	# Fall out of the loop, given any further attempts at
	# accesses will fail miserably.
	break
	elif self.null:
	current_object = None
	# Fall out of the loop, given any further attempts at
	# accesses will fail miserably.
	break
	else:
	raise SearchFieldError("The model '%s' combined with model_attr '%s' returned None, but doesn't allow a default or null value." % (repr(obj), self.model_attr))
	if callable(current_object):
	return current_object()

I'm assuming this has something to do with resolving __ references in your model_attr setting.

[20083017]

seems you have a foreignkey in search indexes， remove that is one of the solutions ! just happen to meet the same problem!