Extending Selfinfo

Selfinfo provides a different types of information about CKAN, but sometimes you need some custom information or manipulate with existing Data that Selfinfo provides.

To extend Selfinfo, you can use CKAN hooks + template overwrite.

CKAN Hooks

There is an interface ISelfinfo that has an method selfinfo_after_prepared, which provides you an ability to extend or modify the data before main Selfinfo action provides you.

Example of how it might look in your plugin.py file:

from ckanext.selfinfo.interfaces import ISelfinfo

class MyPlugin(plugins.SingletonPlugin):
    plugins.implements(ISelfinfo, inherit=True)

    def selfinfo_after_prepared(self, data):
        # Modifications done to data here

        return data

Template overwrite

You can add additional Tabs navigation and Tabs content by overwriting additional_content_tabs.html and additional_navigation_tabs.html templates. Those templates were specifically created to be overwritten.

Example of how it might look for example overwriting additional_navigation_tabs.html:

In your templates folder that structure should be like this:

/templates
    /selfinfo
        /snippets
            /additional_navigation_tabs.html

Content example

<a href="#nav-custom-{{ profile }}" class="nav-link" id="nav-custom-{{ profile }}-tab" data-bs-toggle="tab" data-bs-target="#nav-custom-{{ profile }}" role="tab" aria-controls="nav-custom-{{ profile }}" aria-selected="false">Custom Tab</a>

Why snippets instead of {% block custom_block %}, because of variables transferring after you extend an block, which are missing variables from the original template, while in overwriting snippet you can use the provided variables like profile and data.