Given the following:

• Project has_many collectors
• Collector has_one gs_collector
• GsCollector has_one model
• Model has a field named title

How do I in one query get all the model titles inside any one Project without using map or something similar AND without getting the N + 1 problem?

By using map, I have various solutions that work, but they all query the database more than once:

Project.joins(collectors: { gs_collector: :model }).find(92666).collectors.map{ |coll| coll.gs_collector.model.title }