diff options
Diffstat (limited to 'railties/lib/rails/generators/migration.rb')
| -rw-r--r-- | railties/lib/rails/generators/migration.rb | 51 |
1 files changed, 25 insertions, 26 deletions
diff --git a/railties/lib/rails/generators/migration.rb b/railties/lib/rails/generators/migration.rb index 0a9151ecdf..7975326c52 100644 --- a/railties/lib/rails/generators/migration.rb +++ b/railties/lib/rails/generators/migration.rb @@ -5,10 +5,30 @@ module Rails # just by implementing the next migration number method. # module Migration + attr_reader :migration_number, :migration_file_name, :migration_class_name + def self.included(base) #:nodoc: - base.send :attr_reader, :migration_number, - :migration_file_name, - :migration_class_name + base.extend ClassMethods + end + + module ClassMethods + def migration_lookup_at(dirname) #:nodoc: + Dir.glob("#{dirname}/[0-9]*_*.rb") + end + + def migration_exists?(dirname, file_name) #:nodoc: + migration_lookup_at(dirname).grep(/\d+_#{file_name}.rb$/).first + end + + def current_migration_number(dirname) #:nodoc: + migration_lookup_at(dirname).collect do |file| + File.basename(file).split("_").first.to_i + end.max.to_i + end + + def next_migration_number(dirname) #:nodoc: + raise NotImplementedError + end end # Creates a migration template at the given destination. The difference @@ -26,11 +46,11 @@ module Rails destination = File.expand_path(destination || source, self.destination_root) migration_dir = File.dirname(destination) - @migration_number = next_migration_number(migration_dir) + @migration_number = self.class.next_migration_number(migration_dir) @migration_file_name = File.basename(destination).sub(/\.rb$/, '') @migration_class_name = @migration_file_name.camelize - destination = migration_exists?(migration_dir, @migration_file_name) + destination = self.class.migration_exists?(migration_dir, @migration_file_name) if behavior == :invoke raise Error, "Another migration is already named #{@migration_file_name}: #{destination}" if destination @@ -39,27 +59,6 @@ module Rails template(source, destination, config) end - - protected - - def migration_lookup_at(dirname) #:nodoc: - Dir.glob("#{dirname}/[0-9]*_*.rb") - end - - def migration_exists?(dirname, file_name) #:nodoc: - migration_lookup_at(dirname).grep(/\d+_#{file_name}.rb$/).first - end - - def current_migration_number(dirname) #:nodoc: - migration_lookup_at(dirname).collect do |file| - File.basename(file).split("_").first.to_i - end.max.to_i - end - - def next_migration_number(dirname) #:nodoc: - raise NotImplementError - end - end end end |