```ruby
FactoryGirl.define do
  factory :line, class: Line do
    name { Faker::Lorem.words.join(' ') }
    description { Faker::Lorem.paragraph }
    color { ['red', 'green', 'blue'].sample }
    coordinates {
      Array.new(2) {
        Array.new((2..5).to_a.sample) {
          [Faker::Geolocation.lat, Faker::Geolocation.lng]
        }
      }
    }
  end

  factory :map, class: Map do
    name { Faker::Lorem.words.join(' ') }
    zoom_level { (1..4).to_a.sample }
    center { [Faker::Geolocation.lat, Faker::Geolocation.lng] }
  end
end

class Line
  # FactoryGirl expects a #save! method in order use create(:line)
  def save!
    save or raise 'ahhh invalid record!'
  end
end

class Map
  # FactoryGirl expects a #save! method in order use create(:line)
  def save!
    save or raise 'ahhh invalid record!'
  end
end
```

Remove monkey patches since it's handled as a sequel plugin now
user
```ruby
FactoryGirl.define do
  factory :line, class: Line do
    name { Faker::Lorem.words.join(' ') }
    description { Faker::Lorem.paragraph }
    color { ['red', 'green', 'blue'].sample }
    coordinates {
      Array.new(2) {
        Array.new((2..5).to_a.sample) {
          [Faker::Geolocation.lat, Faker::Geolocation.lng]
        }
      }
    }
  end

  factory :map, class: Map do
    name { Faker::Lorem.words.join(' ') }
    zoom_level { (1..4).to_a.sample }
    center { [Faker::Geolocation.lat, Faker::Geolocation.lng] }
  end
end
```
assistant