Issue initializing database for ckanext-validation on CKAN 2.11.3

Hi,

I’m using CKAN 2.11.3 and tried to add the ckanext-validation plugin, but I encountered an error when initializing the database.

if not tables_exist():
File "/home/ubuntu/ckan/lib/default/lib/python3.10/site-packages/ckanext/validation/model.py", line 53, in tables_exist
return Validation.__table__.exists()
File "", line 2, in exists
File "/usr/lib/ckan/default/lib/python3.10/site-packages/sqlalchemy/util/deprecations.py", line 468, in warned
return fn(*args, **kwargs)
File "/usr/lib/ckan/default/lib/python3.10/site-packages/sqlalchemy/sql/schema.py", line 941, in exists
bind = _bind_or_error(self)
File "/usr/lib/ckan/default/lib/python3.10/site-packages/sqlalchemy/sql/base.py", line 1659, in _bind_or_error
raise exc.UnboundExecutionError(msg)
sqlalchemy.exc.UnboundExecutionError: Table object 'validation' is not bound to an Engine or Connection. Execution can not proceed without a database to execute against.

Steps I followed:

1.
git clone https://github.com/ckan/ckanext-validation.git
cd ckanext-validation
pip install -r requirements.txt
python setup.py develop

2. Added validation to the ckan.plugins section of /etc/ckan/default/ckan.ini

3. Ran:

ckan -c /etc/ckan/default/ckan.ini validation init-db

At step 3, I got the above error.

Could you please advise if there’s something I’m missing or if this is a compatibility issue with CKAN 2.11.3?

Thanks,
Jun

Reproduce the failure with CKAN 2.11.3 using the documented installation steps and `ckan validation init-db`. Start at `ckanext/validation/model.py` line 53, where `Validation.__table__.exists()` raises the unbound-execution error. Done means the extension database initialization completes successfully or the compatibility limitation is clearly documented.

Written by the indexing model from the issue text.