ruby sort_by twice

Question

Ruby has a sort_by method on Enumerables. Fantastic! So you can do something like

entries.sort_by { |l| l.project.name }

That would sort a bunch of entries by their project names. How could you work it so that within projects that had the same name, entries were sorted by their time?

Answer 1

I would suggest putting the column you want to sort by into an array.

entries.sort_by { |l| [l.project.name, l.project.time] }

This will respect the natural sort order for each type.