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The ckanext-qa extension will check each of your dataset resources in CKAN and give them an 'openness score' based Tim Berners-Lee's five stars of openness (http://lab.linkeddata.deri.ie/2010/star-scheme-by-example)
The openness score is displayed as stars on the dataset and resource pages.
.. image:: qa_dataset.png :alt: Stars on the dataset
.. image:: qa_resource.png :alt: Stars spelled out on the resource
It also provides a report that allows you to view the openness (stars ratings) across a publisher or across them all:
.. image:: qa_report.png :alt: Openness report (star ratings) for a publisher
Before installing ckanext-qa, make sure that you have installed the following:
Known issues:
To install ckanext-qa, ensure you have previously installed ckanext-archiver (v2.0+) and ckanext-report and then:
Activate your CKAN virtual environment, for example::
. /usr/lib/ckan/default/bin/activate
Install the ckanext-qa Python package into your virtual environment::
pip install -e git+http://github.com/okfn/ckanext-qa.git#egg=ckanext-qa
Install the qa dependencies::
pip install -r ckanext-qa/requirements.txt
Now create the database tables::
paster --plugin=ckanext-qa qa init --config=production.ini
Add qa
to the ckan.plugins
setting BEFORE archiver
in your CKAN
config file (by default the config file is located at
/etc/ckan/default/production.ini
).
Restart CKAN. For example if you've deployed CKAN with Apache on Ubuntu::
sudo service apache2 reload
NB You should upgrade ckanext-archiver and ckanext-qa from v0.1 to 2.x in one go. Upgrade ckanext-archiver first and then carry out the following:
Activate your CKAN virtual environment, for example::
. /usr/lib/ckan/default/bin/activate
Upgrade the ckanext-qa Python package::
cd ckanext-qa git pull python setup.py develop
Create the new database tables::
paster --plugin=ckanext-qa qa init --config=production.ini
Install the normal and developer dependencies::
pip install -r requirements.txt pip install -r dev-requirements.txt
Migrate your database to the new QA tables::
python ckanext/qa/bin/migrate_task_status.py --write production.ini
(Re)start the paster celeryd2 run
processes described for ckanext-archiver.
You must make sure that the following is set in your CKAN config::
ckan.site_url = <URL to your CKAN instance>
Optionally you can configure a different set of scores to award each resource format::
qa.resource_format_openness_scores_json = <filepath>
The default value is resource_format_openness_scores.json
)
First, make sure that Celery is running for the priority and bulk queues. This is explained in the ckanext-archiver README:
QA is performed when a dataset/resource is archived, or you can run it manually using a paster command::
paster --plugin=ckanext-qa qa update [dataset] --config=production.ini
Here dataset
is a CKAN dataset name or ID, or you can omit it to do the QA on all datasets.
For a full list of manual commands run::
paster --plugin=ckanext-qa qa --help
Once the QA has run for a dataset, you will see the stars displayed on the dataset's web page, and the detected file format available when you call package_show
for it, in the qa
for the dataset and each resource.
You can get an overall picture by generating an Openness report::
paster --plugin=ckanext-report report generate openness --config=production.ini
And view it on your CKAN site at /report/openness
.
To run the tests:
Activate your CKAN virtual environment, for example::
. /usr/lib/ckan/default/bin/activate
If not done already, install the dev requirements::
(pyenv)~/pyenv/src/ckan$ pip install ../ckanext-qa/dev-requirements.txt
From the CKAN root directory (not the extension root) do::
(pyenv)~/pyenv/src/ckan$ nosetests --ckan ../ckanext-qa/ckanext/qa/tests/ --with-pylons=../ckanext-qa/test-core.ini
If you get error "MagicException: None" then it may be due to libmagic needing an update. Try:
sudo apt-get install libmagic1
To translate plugin to a new language (ie. "pl") run python setup.py init_catalog -l pl
.
To update template file with new translation added in the code or templates
run python setup.py extract_messages
in the root plugin directory. Then run
./ckanext/qa/i18n/unique_pot.sh -v
to strip other plugin's translations.
To update translation files for locale "pl" with new template run python setup.py update_catalog -l pl
.
The archiver info shows on the dataset/resource pages but the QA doesn't
You need to ensure that in your ``ckan.plugins`` you have ``qa`` listed BEFORE ``archiver`` or else the template inheritance doesn't work and this happens.