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Government of Canada CKAN Extension - Extension à CKAN du Gouvernement du Canada

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ckanext-canada

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Government of Canada CKAN Extension - Extension à CKAN du Gouvernement du Canada

Features:

  • Forms and Validation for GoC Metadata Schema

Installation:

From a clean database you must run:

ckanapi load organizations -I transitional_orgs.jsonl

Once to create the organizations this extension requires before loading any data.

Plugins in this extension

canada_forms dataset forms for Open Canada metadata schema

canada_public base and public facing Open Canada templates (requires canada_forms)

canada_internal templates for internal site and registration (requires canada_forms and canada_public)

canada_datasets package processing between CKAN and Solr (requires Scheming extension, see below)

canada_security extra security processing (requires Security extension, see below)

Related Open Source Repos

Project Github group/repo Our Contribution
CKAN open-data/ckan important contributor
canada extension open-data/ckanext-canada sole maintainer
Scheming extension ckan/ckanext-scheming primary
Fluent extension ckan/ckanext-fluent primary
ckanapi ckan/ckanapi primary
ckanext-googleanalytics ofkn/ckanext-googleanalytics user
Recombinant extension open-data/ckanext-recombinant sole maintainer
Cloudstorage extension open-data/ckanext-cloudstorage original author, user
Security extension open-data/ckanext-security minor contributor
Xloader extension open-data/ckanext-xloader user, minor customizations
Validation extension open-data/ckanext-validation user, minor customization

OD Configuration: development.ini or production.ini

The CKAN ini file needs the following settings for the registry server:

ckan.plugins = dcat dcat_json_interface googleanalytics canada_forms canada_internal
        canada_public datastore recombinant
        canada_datasets scheming_organizations canada_security fluent

For the public server use only:

ckan.plugins = dcat dcat_json_interface googleanalytics canada_forms
        canada_public canada_datasets scheming_organizations canada_security fluent

canada.portal_url = http://myserver.com

adobe_analytics.js = //path to the js file needed to trigger Adobe Analytics

Both servers need:

licenses_group_url = file://<path to this extension>/ckanext/canada/public/static/licenses.json

ckan.auth.create_dataset_if_not_in_organization = false

ckan.activity_streams_email_notifications = false

ckan.datasets_per_page = 10

googleanalytics.id = UA-1010101-1 (your analytics account id)
googleanalytics.account = Account name (i.e. data.gov.uk, see top level item at https://www.google.com/analytics)

# Internationalisation Settings
ckan.locales_offered = en fr

OD Configuration: Adding WET Resource files

For the use of the Portal or Registry sites, the installation of the WET-BOEW theme extension isn't required anymore, because the templates it provides are now included in the canada_public and canada_internal plugins. All what's needed is to add the resource files:

Externally hosted:

Set wet_boew.url (in your .ini file) to the root URL where the WET resources are hosted:

Example:

wet_boew.url = http://domain.com/wet-boew/v4.0.31

Internally Hosted:

  1. Extract the WET 4.0.x core CDN and desired themes cdn package to a folder::

        export WET_VERSION=v4.0.31
        export GCWEB_VERSION=v5.1
        mkdir wet-boew && curl -L https://github.com/wet-boew/wet-boew-cdn/archive/$WET_VERSION.tar.gz | tar -zx --strip-components 1 - -directory=wet-boew
        mkdir GCWeb && curl -L https://github.com/wet-boew/themes-cdn/archive/$GCWEB_VERSION-gcweb.tar.gz | tar -zx --strip-components 1 --directory=GCWeb
  2. Set the extra_public_paths settings to that path where the files are extracted:

    Example:

    extra_public_paths = /home/user/wet-boew/v4.0.31

Additional Configuration:

Set wet_theme.geo_map_type to indicate what style of WET Geomap widget to use. Set this to either 'static' or 'dynamic':

wet_theme.geo_map_type = static

Configuration: Solr

This extension uses a custom Solr schema based on the ckan 2.8 schema. You can find the schema in the root directory of the project. Overwrite the default CKAN Solr schema with this one in order to enable search faceting over custom metadata fields.

You will need to rebuild your search index using:

ckan search-index rebuild

Localization strings

To update strings in the translation files:

python setup.py extract_messages

Extract messages will gather gettext calls in Python, JS, and Jinja2 files. It will also use th custom PD extractor to get specific strings for the Recombinant YAML files.

To update the English and French catalog files:

python setup.py update_catalog

This will update both English and French PO files. You will need to confirm that there are NO fuzzy translations in either of the PO files.

After updating the PO files and ensuring that there are no fuzzies, you may commit the two PO files along with the POT file.

Compiling localization strings

Each time you install or update this extension you need to install the updated translations by running:

python setup.py compile_catalog

Migrating Proactive Disclosure (recombinant) data

First extract the current version of the data from the registry for each table, e.g for contracts migrations we need contracts.csv and contracts-nil.csv:

mkdir migrate-contracts-2020-08-07  # a new working directory
paster --plugin=ckanext-recombinant recombinant combine contracts contracts-nil -d migrate-contracts-2020-07-08 -c $REGISTRY_INI

Remove the old tables from the database so that tables with the new schema can be created when we load the migrated data, deleting contracts will delete both the contracts and contracts-nil tables:

paster --plugin=ckanext-recombinant recombinant delete contracts -c $REGISTRY_INI

Deploy the new version of the code, for our prod registry site that would be:

fab pull registry

Migrate the data with the script deployed as part of the changes. The output csv files need to have the same names as the input files for loading to work in the next step.

cd migrate-contracts-2020-08-07
mkdir new err  # for migrated data and error logs
.../ckanext-canada/bin/migrate/migrate_contracts_2019_11.py <contracts.csv >new/contracts.csv 2>err/contracts.err
.../ckanext-canada/bin/migrate/migrate_contracts_nil_2019_11.py <contracts-nil.csv >new/contracts-nil.csv 2>err/contracts-nil.err
ls -al err

Records removed in the data migration will appear in the error logs. Also check that the migrated data is comparable in size to the original data in just in case something interrupted the migration.

Load the migrated data back into the registry, capturing any validation errors:

paster --plugin=ckanext-recombinant recombinant load-csv new/contracts.csv new/contracts-nil.csv -c $REGISTRY_INI 2>err/load-contracts.err
ls -al err/load-contracts.err

If there are validation errors or records removed during migration, consider revising the migration script to allow more records to be migrated without manual intervention.

Inform the business owner or source departments about all records that were removed as part of the final data migration or due to validation errors so that data can be corrected and re-imported.

Proactive Disclosure Data Flow

data flow diagram

  1. ckanext-canada (this repository)
    • PD yaml files are read by ckanext-recombinant and used to generate most of the pages, tables, triggers and metadata shown.
    • add+edit forms use form snippets from ckanext-scheming and validation enforced by datastore triggers. They are currently part of the ckanext-canada extension but should be moved into ckanext-recombinant or another reusable extension once the trigger-validation pattern becomes standardized
    • datatable preview is part of ckanext-canada because this code predates the datatables view feature that is now part of ckan. It should be removed from here so we can use the ckan datatable view instead
    • filter scripts cover all the business logic required to "clean" PD data before it is released to the public. a Makefile is used to extract raw CSV data, make backups, run these filters and publish CSV data
  2. ckanext-recombinant
    • XLSX data dictionary
    • reference lists
    • API docs
    • schema json
    • delete form
    • XLSX template UL/DL
    • combine command
  3. ckan
    • datastore API
    • datastore triggers
    • datastore tables
    • dataset metadata
  4. CSV files
    • raw CSV data
    • nightly backups
    • published CSV data
  5. deplane
    • data element profile
  6. ogc_search
    • advanced search

Suggest a Dataset Data Flow

data flow diagram

The "Suggest a Dataset" feature integrates CKAN with both Drupal and Django Search.

  1. Submit Suggestion: The process begins with external public users submitting the Suggest a Dataset form on Drupal. As a result of submission, a new node of content type suggested_dataset is created by the webform handler.

  2. Moderate Suggestion: A registered user with role comment_moderator on Drupal updates and/or adds translation to the suggested dataset. The user may also choose to delete the suggestion if it is not relevant or a duplicate. Once translation is added, the user publishes the suggestion.

  3. Nightly Cron: A number of cron jobs are responsible for cross-integration.

  4. Provide status updates: Registry users can view a list of suggested datasets for their organization and can provide an update on progress.

  5. Search suggested datasets: External public users can search a list of suggested datasets. Each suggested dataset has a details page which shows all the status updates for a suggestion. Users can vote on a suggestion or add comments. The votes and comments are stored in Drupal.

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Government of Canada CKAN Extension - Extension à CKAN du Gouvernement du Canada

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