Add ability to save filters for authors that have common views

[JayBox325]

For example, a platform that has hundreds of articles spread across a couple of categories, would be good to be able to toggle the list by those category entries without having to configure a filter each time.

[brandonkelly]

You can create custom sources with predefined filters, from your dev environment (where allowAdminChanges is enabled). The caveat is that relations aren’t as easy, since elements are created per environment, not as part of the project config. So instead of choosing the related entry, you must enter its ID – or if the ID is going to be different depending on the environment, you can set it to an environment variable.

Alternatively, you could write a plugin that defines additional sources for each category using craft\base\element::EVENT_REGISTER_SOURCES:

use craft\base\Event;
use craft\elements\Entry;
use craft\events\RegisterElementSourcesEvent;

Event::on(
    Entry::class,
    Entry::EVENT_REGISTER_SOURCES,
    function(RegisterElementSourcesEvent $event) {
        $event->sources[] = ['heading' => 'Categories'];
        $categories = Entry::find()->section('categories')->all();
        foreach ($categories as $category) {
            $event->sources[] = [
                'key' => "category:$category->id",
                'label' => $category->getUiLabel(),
                'criteria' => [
                    'myCategoriesField' => $category->id,
                ],
            ];
        }
    },
);

That’s probably the better way overall, since the sources will always reflect category entry changes.