method
    
    new
 
  new(version = nil)
  public
  
    Hide source    
    
      
  
# File activerecord/lib/active_record/migration.rb, line 88 def initialize(version = nil) if version super("Multiple migrations have the version number #{version}.") else super("Duplicate migration version error.") end end

 RSpec
RSpec Ruby on Rails
Ruby on Rails Ruby
Ruby 
   = private
 = private = protected
 = protected
  