Django column wagtailcore_page.draft_title does not exist - django

Question

Django==1.11.3, wagtail==1.11.1
I did a backup of my PostgreSQL on remote server and did a restore on my local server so I can get an exact copy of all the changes. I've done it this way for a long long time and its always worked like a charm. But this time, I did the restore and got the error below:
column wagtailcore_page.draft_title does not exist
LINE 1: ...ore_page"."numchild", "wagtailcore_page"."title", "wagtailco...
I deleted my database and restored fresh but that did nothing. I deleted all migrations, did the --fake migration to try and reset, but nothing; still getting the error. I am at a loss on this one and could use some feedback. Thank you.
Here's my trace file:
Environment:
Request Method: GET
Request URL: http://127.0.0.1:8001/
Django Version: 1.11.3
Python Version: 3.5.0
Installed Applications:
['app',
'home',
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'django.contrib.sites',
'django_summernote',
'rest_framework',
'wagtail.contrib.settings',
'wagtail.contrib.modeladmin',
'wagtail.wagtailcore',
'wagtail.wagtailadmin',
'wagtail.wagtaildocs',
'wagtail.wagtailsnippets',
'wagtail.wagtailusers',
'wagtail.wagtailimages',
'wagtail.wagtailembeds',
'wagtail.wagtailsearch',
'wagtail.wagtailsites',
'wagtail.wagtailredirects',
'wagtail.wagtailforms',
'wagtail.contrib.wagtailsitemaps',
'wagtail.contrib.wagtailroutablepage',
'wagtail.contrib.wagtailstyleguide',
'wagtailmenus',
'compressor',
'taggit',
'modelcluster',
'docs',
'wagtail.contrib.table_block']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
'wagtail.wagtailcore.middleware.SiteMiddleware',
'wagtail.wagtailredirects.middleware.RedirectMiddleware']
Traceback:
File "/Users/rooster/.pyenv/versions/3.5.0/envs/alpha_omega/lib/python3.5/site-packages/django/db/backends/utils.py" in execute
65. return self.cursor.execute(sql, params)
The above exception (column wagtailcore_page.draft_title does not exist
LINE 1: ...ore_page"."numchild", "wagtailcore_page"."title", "wagtailco...
^
) was the direct cause of the following exception:
File "/Users/rooster/.pyenv/versions/3.5.0/envs/alpha_omega/lib/python3.5/site-packages/django/core/handlers/exception.py" in inner
41. response = get_response(request)
File "/Users/rooster/.pyenv/versions/3.5.0/envs/alpha_omega/lib/python3.5/site-packages/django/core/handlers/base.py" in _legacy_get_response
244. response = middleware_method(request)
File "/Users/rooster/.pyenv/versions/3.5.0/envs/alpha_omega/lib/python3.5/site-packages/wagtail/wagtailcore/middleware.py" in process_request
20. request.site = Site.find_for_request(request)
File "/Users/rooster/.pyenv/versions/3.5.0/envs/alpha_omega/lib/python3.5/site-packages/wagtail/wagtailcore/models.py" in find_for_request
129. return get_site_for_hostname(hostname, port)
File "/Users/rooster/.pyenv/versions/3.5.0/envs/alpha_omega/lib/python3.5/site-packages/wagtail/wagtailcore/sites.py" in get_site_for_hostname
38. 'root_page'
File "/Users/rooster/.pyenv/versions/3.5.0/envs/alpha_omega/lib/python3.5/site-packages/django/db/models/query.py" in __iter__
250. self._fetch_all()
File "/Users/rooster/.pyenv/versions/3.5.0/envs/alpha_omega/lib/python3.5/site-packages/django/db/models/query.py" in _fetch_all
1118. self._result_cache = list(self._iterable_class(self))
File "/Users/rooster/.pyenv/versions/3.5.0/envs/alpha_omega/lib/python3.5/site-packages/django/db/models/query.py" in __iter__
53. results = compiler.execute_sql(chunked_fetch=self.chunked_fetch)
File "/Users/rooster/.pyenv/versions/3.5.0/envs/alpha_omega/lib/python3.5/site-packages/django/db/models/sql/compiler.py" in execute_sql
886. raise original_exception
File "/Users/rooster/.pyenv/versions/3.5.0/envs/alpha_omega/lib/python3.5/site-packages/django/db/models/sql/compiler.py" in execute_sql
876. cursor.execute(sql, params)
File "/Users/rooster/.pyenv/versions/3.5.0/envs/alpha_omega/lib/python3.5/site-packages/django/db/backends/utils.py" in execute
80. return super(CursorDebugWrapper, self).execute(sql, params)
File "/Users/rooster/.pyenv/versions/3.5.0/envs/alpha_omega/lib/python3.5/site-packages/django/db/backends/utils.py" in execute
65. return self.cursor.execute(sql, params)
File "/Users/rooster/.pyenv/versions/3.5.0/envs/alpha_omega/lib/python3.5/site-packages/django/db/utils.py" in __exit__
94. six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/Users/rooster/.pyenv/versions/3.5.0/envs/alpha_omega/lib/python3.5/site-packages/django/utils/six.py" in reraise
685. raise value.with_traceback(tb)
File "/Users/rooster/.pyenv/versions/3.5.0/envs/alpha_omega/lib/python3.5/site-packages/django/db/backends/utils.py" in execute
65. return self.cursor.execute(sql, params)
Exception Type: ProgrammingError at /
Exception Value: column wagtailcore_page.draft_title does not exist
LINE 1: ...ore_page"."numchild", "wagtailcore_page"."title", "wagtailco...
^

Answer 1

the error is due to the fact that you have not migrated the newest version of wagtail. just run python manage.py migrate and when you see it running, this will appear:
Running migrations:
Rendering model states ... DONE
Applying
wagtailcore.0040_page_draft_title
... OK
rerun your project and you're done.

Answer 2

After restoring your database backup, you need to run ./manage.py migrate. draft_title was added in Wagtail 1.11, so presumably your backup is from a site running Wagtail 1.10 or earlier.
(Running --fake is the opposite of what you want... it tells Django not to run any of the outstanding migrations, including the one that adds the draft_title column.)