3.3 Database Index Setup
From the Firestore Database, Click on the Indexes tab and click on the Add Index. You have to create five indexes for the database.
Enter reviews as Collection ID, course_author_id into the first field and set Ascending, Enter created_at in the second field and set Descending, Enter __name__ in the third field and set Descending and then select Collection as query scope and save it.
Enter courses as Collection ID, cat_id into the first field and set Ascending, Enter id in the second field and set Ascending, Enter __name__ in the third field and set Ascending and then select Collection as query scope and save it.
Enter courses as Collection ID, status into the first field and set Ascending, Enter created_at in the second field and set Descending, Enter __name__ in the third field and set Descending and then select Collection as query scope and save it.
Enter reviews as Collection ID, course_id into the first field and set Ascending, Enter created_at in the second field and set Descending, Enter __name__ in the third field and set Descending and then select Collection as query scope and save it.
Enter courses as Collection ID, cat_id into the first field and set Ascending, Enter status in the second field and set Ascending, Enter id in the third field and set Ascending, Enter __name__ in the fourth field and set Ascending and then select Collection as query scope and save it.
This may take 3-5 minutes to activate. After completing this, your index page should look like this:
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