Question

I have Task and Project tables, project has many tasks.

How to get the count of all tasks in each project, order by tasks count descending?

I came up only with Task.group('project_id'), not any further.

Thanks

Answer 1

Just use count after group, like Task.group(:project_id).count, this will give you a hash with project_id as keys and numbers of their tasks as values. Then you may sort them using Enumerable#sort_by.