Rails Upgrade from 3.2 to 4.2 Active Record Update Checklist

To migrate dynamic finders to Rails 4.1+:

• find_all_by_... should become where(...).
• find_last_by_... should become where(...).last.
• scoped_by_... should become where(...).
• find_or_initialize_by_... should become find_or_initialize_by(...).
• find_or_create_by_... should become find_or_create_by(...).

https://github.com/rails/activerecord-deprecated_finders