ruby-on-rails - 带有 FactoryGirl 序列的自定义范围

Question

在旧版本中，这样的事情是可能的( more examples ):

Factory.sequence(:email, 50..60) do |n|
  "user_#{n}@example.com"
end

在新的 FactoryGirl 版本中使用它会创建一个 NoMethodError: undefined method 'next' for 0..10:Range .

特别是我有一个模型 user其中有多个 time_entries .我想创建默认值。为简单起见，每个用户应创建 n时间条目。条目是这样创建的:

FactoryGirl.define do
  factory :time_entry do
    start_time { generate(:time_entry_begin) }
    end_time { generate(:time_entry_end) }
  end
end

FactoryGirl.define do
  sequence(:time_entry_begin, 0..10) do |n|
    DateTime.now - n.hours
  end
end

FactoryGirl.define do 
  sequence(:time_entry_end, 0..10) do |n|
    DateTime.now - n.hours + (1 + n).minutes
  end
end

Answer 1

您必须传递一个响应 next 的对象，例如枚举器:

FactoryGirl.define do
  factory :user do
    sequence(:email, (50..60).cycle) { |n| "user_#{n}@example.com" }
  end
end

FactoryGirl.build(:user) #=> <#User @email="user_50@example.com">
FactoryGirl.build(:user) #=> <#User @email="user_51@example.com">
FactoryGirl.build(:user) #=> <#User @email="user_52@example.com">
# ...
FactoryGirl.build(:user) #=> <#User @email="user_59@example.com">
FactoryGirl.build(:user) #=> <#User @email="user_60@example.com">
# `cycle` will start over:
FactoryGirl.build(:user) #=> <#User @email="user_50@example.com">