How to sequence correctly with factory_girl in rails development environment?

Question

I want to integrate factory_girl in rails development environment for quickly creating records. However, every time I open rails console and do some actions, the sequence state always begins from zero, which leading to error of violating uniqueness. Such as:

FactoryGirl.define do
  factory :user do
    name 'Jim'
    email
  end

  sequence :email do |n| # every time n begins at 0
    "#{n}@exmaple.com"
  end
end

Do you have some simple solutions to solve this problem? Thank you!

Answer 1

You can set the initial value of n if you wish. you can achieve this by:

FactoryGirl.define do
  factory :user do
    name 'Jim'
    sequence :email, 100 do |n|
      "#{n}@exmaple.com"
    end
  end
end

or

FactoryGirl.define do
      factory :user do
        name 'Jim'
        sequence(:email, 100) { |n| "person#{n}@example.com" }
      end
end

note: n = 100 in this case for more info check out the documentation here