Question

I have a model in my django project called “change” and it has a field called “change_type”. There are multiple values within the change_type field to include “move”, “new”, “edit” and others with new types being added randomly over any given period of time. I am currently using normal django queries to select groups of entries within the change model.

Is there a quick method to determine what unique entries are in the change_type field? Is there a quick method to return a count of each entry type?

Answer 1

Putting it together:

 occurrences = {}
 change_types = Change.objects.values_list('change_type', flat=True).distinct()

 for type in change_types:
     occurrences[type] = Change.objects.filter(change_type=type).count()