diff options
Diffstat (limited to 'activerecord/test/cases')
-rw-r--r-- | activerecord/test/cases/adapters/postgresql/composite_test.rb | 101 |
1 files changed, 94 insertions, 7 deletions
diff --git a/activerecord/test/cases/adapters/postgresql/composite_test.rb b/activerecord/test/cases/adapters/postgresql/composite_test.rb index 224b1b770b..68b9e6daf7 100644 --- a/activerecord/test/cases/adapters/postgresql/composite_test.rb +++ b/activerecord/test/cases/adapters/postgresql/composite_test.rb @@ -1,19 +1,19 @@ # -*- coding: utf-8 -*- require "cases/helper" +require 'support/connection_helper' require 'active_record/base' require 'active_record/connection_adapters/postgresql_adapter' -class PostgresqlCompositeTest < ActiveRecord::TestCase +module PostgresqlCompositeBehavior + include ConnectionHelper + class PostgresqlComposite < ActiveRecord::Base self.table_name = "postgresql_composites" end - teardown do - @connection.execute 'DROP TABLE IF EXISTS postgresql_composites' - @connection.execute 'DROP TYPE IF EXISTS full_address' - end - def setup + super + @connection = ActiveRecord::Base.connection @connection.transaction do @connection.execute <<-SQL @@ -29,9 +29,27 @@ class PostgresqlCompositeTest < ActiveRecord::TestCase end end + def teardown + super + + @connection.execute 'DROP TABLE IF EXISTS postgresql_composites' + @connection.execute 'DROP TYPE IF EXISTS full_address' + reset_connection + PostgresqlComposite.reset_column_information + end +end + +# Composites are mapped to `OID::Identity` by default. The user is informed by a warning like: +# "unknown OID 5653508: failed to recognize type of 'address'. It will be treated as String." +# To take full advantage of composite types, we suggest you register your own +OID::Type+. +# See PostgresqlCompositeWithCustomOIDTest +class PostgresqlCompositeTest < ActiveRecord::TestCase + include PostgresqlCompositeBehavior + def test_column + ensure_warning_is_issued + column = PostgresqlComposite.columns_hash["address"] - # TODO: Composite columns should have a type assert_nil column.type assert_equal "full_address", column.sql_type assert_not column.number? @@ -41,6 +59,8 @@ class PostgresqlCompositeTest < ActiveRecord::TestCase end def test_composite_mapping + ensure_warning_is_issued + @connection.execute "INSERT INTO postgresql_composites VALUES (1, ROW('Paris', 'Champs-Élysées'));" composite = PostgresqlComposite.first assert_equal "(Paris,Champs-Élysées)", composite.address @@ -50,4 +70,71 @@ class PostgresqlCompositeTest < ActiveRecord::TestCase assert_equal '(Paris,"Rue Basse")', composite.reload.address end + + private + def ensure_warning_is_issued + warning = capture(:stderr) do + PostgresqlComposite.columns_hash + end + assert_match(/unknown OID \d+: failed to recognize type of 'address'\. It will be treated as String\./, warning) + end +end + +class PostgresqlCompositeWithCustomOIDTest < ActiveRecord::TestCase + include PostgresqlCompositeBehavior + + class FullAddressType + def type; :full_address end + def simplified_type(sql_type); type end + + def type_cast(value) + if value =~ /\("?([^",]*)"?,"?([^",]*)"?\)/ + FullAddress.new($1, $2) + end + end + + def type_cast_for_write(value) + "(#{value.city},#{value.street})" + end + end + + FullAddress = Struct.new(:city, :street) + + def setup + super + + @registration = ActiveRecord::ConnectionAdapters::PostgreSQLAdapter::OID + @registration.register_type "full_address", FullAddressType.new + end + + def teardown + super + + # there is currently no clean way to unregister a OID::Type + @registration::NAMES.delete("full_address") + end + + def test_column + column = PostgresqlComposite.columns_hash["address"] + assert_equal :full_address, column.type + assert_equal "full_address", column.sql_type + assert_not column.number? + assert_not column.text? + assert_not column.binary? + assert_not column.array + end + + def test_composite_mapping + @connection.execute "INSERT INTO postgresql_composites VALUES (1, ROW('Paris', 'Champs-Élysées'));" + composite = PostgresqlComposite.first + assert_equal "Paris", composite.address.city + assert_equal "Champs-Élysées", composite.address.street + + composite.address = FullAddress.new("Paris", "Rue Basse") + skip "Saving with custom OID type is currently not supported." + composite.save! + + assert_equal 'Paris', composite.reload.address.city + assert_equal 'Rue Basse', composite.reload.address.street + end end |