douglascamata/Rick-Rocks-Academics — comment on commit 023b59bd3c21e184d1e7653410128054f902877e
File:  line 0
By douglascamata:

```ruby
:collection => Turma.all.map {|t| ["#{t.disciplina.nome} - #{t.cod}", t.id]}.delete_if { |turma| turma.nil? }
```