Load all Models and iterate to see if user_id column exists

load_all_models_look_for_user.rb

# Applies to Rails 2.3
# Since Rails doesn't load classes unless it needs them, you must read the models from the folder. Here is the code
    Dir[Rails.root.to_s + '/app/models/**/*.rb'].each do |file|
      begin
        require file
      rescue
      end
    end

    Object.subclasses_of(ActiveRecord::Base).each do |model|
      if model.columns.map(&:name).include?("user_id")
        puts "#{model.name} has User Assoc"
        model.all.each do |obj|
          delete_obj(obj)
        end
      end
    end