Steps to reproduce:

1. In Toaster, select a build, go the Configuration page and click on the "BitBake variables" tab

2. Search for something that will return results (for example, "kernel")

3. Click on the "Set in file" filter button and select the "Local configuration variables" option. Click "Apply"

You get this error:

Environment:


Request Method: GET
Request URL: http://localhost:8000/gui/build/65/configvars?filter=vhistory__file_name__regex%3Aconf%2F%28local%7Cbblayers%29.conf&count=100&search=kernel&page=1&orderby=variable_name%3A%2B

Django Version: 1.5
Python Version: 2.7.3
Installed Applications:
('django.contrib.staticfiles',
 'django.contrib.humanize',
 'orm',
 'toastermain',
 'toastergui',
 'bldviewer',
 'south')
Installed Middleware:
('django.middleware.common.CommonMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware')


Traceback:
File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py" in get_response
  115.                         response = callback(request, *callback_args, **callback_kwargs)
File "/home/yocto/poky/bitbake/lib/toaster/toastergui/views.py" in configvars
  787.     queryset = _get_queryset(Variable, queryset, filter_string, search_term, ordering_string)
File "/home/yocto/poky/bitbake/lib/toaster/toastergui/views.py" in _get_queryset
  187.     if ordering_string and queryset:
File "/usr/local/lib/python2.7/dist-packages/django/db/models/query.py" in __nonzero__
  141.         return type(self).__bool__(self)
File "/usr/local/lib/python2.7/dist-packages/django/db/models/query.py" in __bool__
  135.             next(iter(self))
File "/usr/local/lib/python2.7/dist-packages/django/db/models/query.py" in _result_iter
  123.                 self._fill_cache()
File "/usr/local/lib/python2.7/dist-packages/django/db/models/query.py" in _fill_cache
  939.                     self._result_cache.append(next(self._iter))
File "/usr/local/lib/python2.7/dist-packages/django/db/models/query.py" in _safe_iterator
  344.             for item in iterator:
File "/usr/local/lib/python2.7/dist-packages/django/db/models/query.py" in iterator
  301.         for row in compiler.results_iter():
File "/usr/local/lib/python2.7/dist-packages/django/db/models/sql/compiler.py" in results_iter
  775.         for rows in self.execute_sql(MULTI):
File "/usr/local/lib/python2.7/dist-packages/django/db/models/sql/compiler.py" in execute_sql
  840.         cursor.execute(sql, params)
File "/usr/local/lib/python2.7/dist-packages/django/db/backends/util.py" in execute
  41.             return self.cursor.execute(sql, params)
File "/usr/local/lib/python2.7/dist-packages/django/db/backends/sqlite3/base.py" in execute
  366.             six.reraise(utils.DatabaseError, utils.DatabaseError(*tuple(e.args)), sys.exc_info()[2])
File "/usr/local/lib/python2.7/dist-packages/django/db/backends/sqlite3/base.py" in execute
  362.             return Database.Cursor.execute(self, query, params)

Exception Type: DatabaseError at /gui/build/65/configvars
Exception Value: user-defined function raised exception