relation.rb in rom-sql-2.0.0.beta2

- old
+ new

@@ -1,9 +1,10 @@
 require 'rom/sql/types'
 require 'rom/sql/schema'
 require 'rom/sql/attribute'
 require 'rom/sql/wrap'
+require 'rom/sql/transaction'
 
 require 'rom/sql/relation/reading'
 require 'rom/sql/relation/writing'
 require 'rom/sql/relation/sequel_api'
 
@@ -22,10 +23,11 @@
       extend Notifications::Listener
 
       schema_class SQL::Schema
       schema_attr_class SQL::Attribute
       schema_inferrer ROM::SQL::Schema::Inferrer.new.freeze
+      schema_dsl SQL::Schema::DSL
       wrap_class SQL::Wrap
 
       subscribe('configuration.relations.schema.set', adapter: :sql) do |event|
         schema = event[:schema]
         relation = event[:relation]
@@ -109,9 +111,14 @@
       # @return [Relation]
       #
       # @api public
       def assoc(name)
         associations[name].()
+      end
+
+      # @api public
+      def transaction(opts = EMPTY_HASH, &block)
+        Transaction.new(dataset.db).run(opts, &block)
       end
 
       # Return raw column names
       #
       # @return [Array<Symbol>]