method

validate_file_name!

rails latest stable - Class: ActiveRecord::Generators::MigrationGenerator

validate_file_name!()

private

A migration file name can only contain underscores (_), lowercase characters, and numbers 0-9. Any other file name will raise an IllegalMigrationNameError.

# File activerecord/lib/rails/generators/active_record/migration/migration_generator.rb, line 65
        def validate_file_name!
          unless /^[_a-z0-9]+$/.match?(file_name)
            raise IllegalMigrationNameError.new(file_name)
          end
        end

validate_file_name!

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