lib/rom/sql/migration/writer.rb in rom-sql-3.6.4 vs lib/rom/sql/migration/writer.rb in rom-sql-4.0.0.alpha1

@@ -1,16 +1,16 @@
 # frozen_string_literal: true
 
-require 'rom/sql/migration/recorder'
+require "rom/sql/migration/recorder"
 
 module ROM
   module SQL
     module Migration
       # @api private
       class Writer
-        MIGRATION_BEGIN = "ROM::SQL.migration do\n  change do".freeze
-        MIGRATION_END = "\n  end\nend\n".freeze
+        MIGRATION_BEGIN = "ROM::SQL.migration do\n  change do"
+        MIGRATION_END = "\n  end\nend\n"
 
         attr_reader :yield_migration
 
         def initialize(&block)
           @yield_migration = block
@@ -31,38 +31,38 @@
         end
 
         def write(operations, buffer, indent)
           operations.each do |operation|
             op, args, nested = operation
-            buffer << indent << op.to_s << ' '
+            buffer << indent << op.to_s << " "
             write_arguments(buffer, args)
 
-            if !nested.empty?
-              buffer << ' do'
-              write(nested, buffer, indent + '  ')
-              buffer << indent << 'end'
-            end
+            next if nested.empty?
+
+            buffer << " do"
+            write(nested, buffer, indent + "  ")
+            buffer << indent << "end"
           end
         end
 
         def write_arguments(buffer, args)
           if args.last.is_a?(::Hash)
             args, options = args[0...-1], args.last
           else
             options = EMPTY_HASH
           end
 
-          buffer << args.map(&:inspect).join(', ')
+          buffer << args.map(&:inspect).join(", ")
           options.each do |key, value|
-            buffer << ', ' << key.to_s << ': ' << value.inspect
+            buffer << ", " << key.to_s << ": " << value.inspect
           end
         end
 
         def migration_name(op)
           create_or_alter, args = op
           table_name = args[0]
 
-          "#{create_or_alter.to_s.sub('_table', '')}_#{table_name}"
+          "#{create_or_alter.to_s.sub("_table", "")}_#{table_name}"
         end
       end
     end
   end
 end