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Class: Rails::Generators::Actions::CreateMigration

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, Thor::Actions::CreateFile
Instance Chain:
self, Thor::Actions::CreateFile
Inherits: Thor::Actions::CreateFile
  • ::Object
Defined in: railties/lib/rails/generators/actions/create_migration.rb

Instance Attribute Summary

Instance Method Summary

Instance Attribute Details

#exists? (readonly)

Alias for #existing_migration.

[ GitHub ] 

  


# File 'railties/lib/rails/generators/actions/create_migration.rb', line 38



alias :exists? :existing_migration


  








  

    #identical?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


# File 'railties/lib/rails/generators/actions/create_migration.rb', line 16



def identical?
  exists? && File.binread(existing_migration) == render
end


  







Instance Method Details



  

    #existing_migration  
    Also known as: #exists?
  

  [ GitHub ]


  

  


# File 'railties/lib/rails/generators/actions/create_migration.rb', line 32



def existing_migration
  @existing_migration ||= begin
    @base.class.migration_exists?(migration_dir, migration_file_name) ||
    File.exist?(@destination) && @destination
  end
end


  








  

    #migration_dir  
  

  [ GitHub ]


  

  


# File 'railties/lib/rails/generators/actions/create_migration.rb', line 8



def migration_dir
  File.dirname(@destination)
end


  








  

    #migration_file_name  
  

  [ GitHub ]


  

  


# File 'railties/lib/rails/generators/actions/create_migration.rb', line 12



def migration_file_name
  @base.migration_file_name
end


  








  

    #relative_existing_migration  
  

  [ GitHub ]


  

  


# File 'railties/lib/rails/generators/actions/create_migration.rb', line 28



def relative_existing_migration
  base.relative_to_original_destination_root(existing_migration)
end


  








  

    #revoke!  
  

  [ GitHub ]


  

  


# File 'railties/lib/rails/generators/actions/create_migration.rb', line 20



def revoke!
  say_destination = exists? ? relative_existing_migration : relative_destination
  say_status :remove, :red, say_destination
  return unless exists?
  ::FileUtils.rm_rf(existing_migration) unless pretend?
  existing_migration
end