From 9f4a3fd7383d1fa5e96030c411a998b89f510476 Mon Sep 17 00:00:00 2001 From: Sean Griffin Date: Fri, 5 Jun 2015 09:02:25 -0600 Subject: Return a `Point` object from the PG Point type This introduces a deprecation cycle to change the behavior of the default point type in the PostgreSQL adapter. The old behavior will continue to be available for the immediate future as `:legacy_point`. The current behavior of returning an `Array` causes several problems, the most significant of which is that we cannot differentiate between an array of points, and a point itself in the case of a column with the `point[]` type. The attributes API gives us a reasonable way to have a proper deprecation cycle for this change, so let's take advantage of it. If we like this change, we can also add proper support for the other geometric types (line, lseg, box, path, polygon, and circle), all of which are just aliases for string today. Fixes #20441 --- .../cases/adapters/postgresql/geometric_test.rb | 119 +++++++++++++++++++-- 1 file changed, 108 insertions(+), 11 deletions(-) (limited to 'activerecord/test') diff --git a/activerecord/test/cases/adapters/postgresql/geometric_test.rb b/activerecord/test/cases/adapters/postgresql/geometric_test.rb index 41e9572907..7057848eb0 100644 --- a/activerecord/test/cases/adapters/postgresql/geometric_test.rb +++ b/activerecord/test/cases/adapters/postgresql/geometric_test.rb @@ -6,7 +6,15 @@ class PostgresqlPointTest < ActiveRecord::TestCase include ConnectionHelper include SchemaDumpingHelper - class PostgresqlPoint < ActiveRecord::Base; end + class PostgresqlPoint < ActiveRecord::Base + attribute :x, :rails_5_1_point + attribute :y, :rails_5_1_point + attribute :z, :rails_5_1_point + attribute :array_of_points, :rails_5_1_point, array: true + attribute :legacy_x, :legacy_point + attribute :legacy_y, :legacy_point + attribute :legacy_z, :legacy_point + end def setup @connection = ActiveRecord::Base.connection @@ -14,11 +22,27 @@ class PostgresqlPointTest < ActiveRecord::TestCase t.point :x t.point :y, default: [12.2, 13.3] t.point :z, default: "(14.4,15.5)" + t.point :array_of_points, array: true + t.point :legacy_x + t.point :legacy_y, default: [12.2, 13.3] + t.point :legacy_z, default: "(14.4,15.5)" + end + @connection.create_table('deprecated_points') do |t| + t.point :x end end teardown do @connection.drop_table 'postgresql_points', if_exists: true + @connection.drop_table 'deprecated_points', if_exists: true + end + + class DeprecatedPoint < ActiveRecord::Base; end + + def test_deprecated_legacy_type + assert_deprecated do + DeprecatedPoint.new + end end def test_column @@ -32,11 +56,11 @@ class PostgresqlPointTest < ActiveRecord::TestCase end def test_default - assert_equal [12.2, 13.3], PostgresqlPoint.column_defaults['y'] - assert_equal [12.2, 13.3], PostgresqlPoint.new.y + assert_equal ActiveRecord::Point.new(12.2, 13.3), PostgresqlPoint.column_defaults['y'] + assert_equal ActiveRecord::Point.new(12.2, 13.3), PostgresqlPoint.new.y - assert_equal [14.4, 15.5], PostgresqlPoint.column_defaults['z'] - assert_equal [14.4, 15.5], PostgresqlPoint.new.z + assert_equal ActiveRecord::Point.new(14.4, 15.5), PostgresqlPoint.column_defaults['z'] + assert_equal ActiveRecord::Point.new(14.4, 15.5), PostgresqlPoint.new.z end def test_schema_dumping @@ -49,22 +73,95 @@ class PostgresqlPointTest < ActiveRecord::TestCase def test_roundtrip PostgresqlPoint.create! x: [10, 25.2] record = PostgresqlPoint.first - assert_equal [10, 25.2], record.x + assert_equal ActiveRecord::Point.new(10, 25.2), record.x - record.x = [1.1, 2.2] + record.x = ActiveRecord::Point.new(1.1, 2.2) record.save! assert record.reload - assert_equal [1.1, 2.2], record.x + assert_equal ActiveRecord::Point.new(1.1, 2.2), record.x end def test_mutation - p = PostgresqlPoint.create! x: [10, 20] + p = PostgresqlPoint.create! x: ActiveRecord::Point.new(10, 20) + + p.x.y = 25 + p.save! + p.reload + + assert_equal ActiveRecord::Point.new(10.0, 25.0), p.x + assert_not p.changed? + end + + def test_array_assignment + p = PostgresqlPoint.new(x: [1, 2]) + + assert_equal ActiveRecord::Point.new(1, 2), p.x + end + + def test_string_assignment + p = PostgresqlPoint.new(x: "(1, 2)") + + assert_equal ActiveRecord::Point.new(1, 2), p.x + end + + def test_array_of_points_round_trip + expected_value = [ + ActiveRecord::Point.new(1, 2), + ActiveRecord::Point.new(2, 3), + ActiveRecord::Point.new(3, 4), + ] + p = PostgresqlPoint.new(array_of_points: expected_value) + + assert_equal expected_value, p.array_of_points + p.save! + p.reload + assert_equal expected_value, p.array_of_points + end + + def test_legacy_column + column = PostgresqlPoint.columns_hash["legacy_x"] + assert_equal :point, column.type + assert_equal "point", column.sql_type + assert_not column.array? + + type = PostgresqlPoint.type_for_attribute("legacy_x") + assert_not type.binary? + end + + def test_legacy_default + assert_equal [12.2, 13.3], PostgresqlPoint.column_defaults['legacy_y'] + assert_equal [12.2, 13.3], PostgresqlPoint.new.legacy_y + + assert_equal [14.4, 15.5], PostgresqlPoint.column_defaults['legacy_z'] + assert_equal [14.4, 15.5], PostgresqlPoint.new.legacy_z + end + + def test_legacy_schema_dumping + output = dump_table_schema("postgresql_points") + assert_match %r{t\.point\s+"legacy_x"$}, output + assert_match %r{t\.point\s+"legacy_y",\s+default: \[12\.2, 13\.3\]$}, output + assert_match %r{t\.point\s+"legacy_z",\s+default: \[14\.4, 15\.5\]$}, output + end + + def test_legacy_roundtrip + PostgresqlPoint.create! legacy_x: [10, 25.2] + record = PostgresqlPoint.first + assert_equal [10, 25.2], record.legacy_x + + record.legacy_x = [1.1, 2.2] + record.save! + assert record.reload + assert_equal [1.1, 2.2], record.legacy_x + end + + def test_legacy_mutation + p = PostgresqlPoint.create! legacy_x: [10, 20] - p.x[1] = 25 + p.legacy_x[1] = 25 p.save! p.reload - assert_equal [10.0, 25.0], p.x + assert_equal [10.0, 25.0], p.legacy_x assert_not p.changed? end end -- cgit v1.2.3