diff options
| -rw-r--r-- | activerecord/CHANGELOG.md | 15 | ||||
| -rw-r--r-- | activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb | 28 | ||||
| -rw-r--r-- | activerecord/test/cases/adapters/mysql/datetime_test.rb | 87 | ||||
| -rw-r--r-- | activerecord/test/cases/adapters/mysql2/datetime_test.rb | 87 | ||||
| -rw-r--r-- | activerecord/test/cases/schema_dumper_test.rb | 7 | ||||
| -rw-r--r-- | activerecord/test/schema/schema.rb | 2 |
6 files changed, 225 insertions, 1 deletions
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md index d213d6afcf..88eb65aa4c 100644 --- a/activerecord/CHANGELOG.md +++ b/activerecord/CHANGELOG.md @@ -1,3 +1,18 @@ +* Format the datetime string according to the precision of the datetime field. + + Incompatible to rounding behavior between MySQL 5.6 and earlier. + + In 5.5, when you insert `2014-08-17 12:30:00.999999` the fractional part + is ignored. In 5.6, it's rounded to `2014-08-17 12:30:01`: + + http://bugs.mysql.com/bug.php?id=68760 + + *Ryuta Kamizono* + +* Allow precision option for MySQL datetimes. + + *Ryuta Kamizono* + * Fixed automatic inverse_of for models nested in module. *Andrew McCloud* diff --git a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb index d083e413a5..03d30b5dd0 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb @@ -591,6 +591,13 @@ module ActiveRecord when 0x1000000..0xffffffff; 'longtext' else raise(ActiveRecordError, "No text type has character length #{limit}") end + when 'datetime' + return super unless precision + + case precision + when 0..6; "datetime(#{precision})" + else raise(ActiveRecordError, "No datetime type has precision of #{precision}. The allowed range of precision is from 0 to 6.") + end else super end @@ -679,6 +686,11 @@ module ActiveRecord m.alias_type %r(year)i, 'integer' m.alias_type %r(bit)i, 'binary' + m.register_type(%r(datetime)i) do |sql_type| + precision = extract_precision(sql_type) + MysqlDateTime.new(precision: precision) + end + m.register_type(%r(enum)i) do |sql_type| limit = sql_type[/^enum\((.+)\)/i, 1] .split(',').map{|enum| enum.strip.length - 2}.max @@ -872,6 +884,22 @@ module ActiveRecord TableDefinition.new(native_database_types, name, temporary, options, as) end + class MysqlDateTime < Type::DateTime # :nodoc: + def type_cast_for_database(value) + if value.acts_like?(:time) && value.respond_to?(:usec) + result = super.to_s(:db) + case precision + when 1..6 + "#{result}.#{sprintf("%0#{precision}d", value.usec / 10 ** (6 - precision))}" + else + result + end + else + super + end + end + end + class MysqlString < Type::String # :nodoc: def type_cast_for_database(value) case value diff --git a/activerecord/test/cases/adapters/mysql/datetime_test.rb b/activerecord/test/cases/adapters/mysql/datetime_test.rb new file mode 100644 index 0000000000..ae00f4e131 --- /dev/null +++ b/activerecord/test/cases/adapters/mysql/datetime_test.rb @@ -0,0 +1,87 @@ +require 'cases/helper' + +if mysql_56? + class DateTimeTest < ActiveRecord::TestCase + self.use_transactional_fixtures = false + + class Foo < ActiveRecord::Base; end + + def test_default_datetime_precision + ActiveRecord::Base.connection.create_table(:foos, force: true) + ActiveRecord::Base.connection.add_column :foos, :created_at, :datetime + ActiveRecord::Base.connection.add_column :foos, :updated_at, :datetime + assert_nil activerecord_column_option('foos', 'created_at', 'precision') + end + + def test_datetime_data_type_with_precision + ActiveRecord::Base.connection.create_table(:foos, force: true) + ActiveRecord::Base.connection.add_column :foos, :created_at, :datetime, precision: 1 + ActiveRecord::Base.connection.add_column :foos, :updated_at, :datetime, precision: 5 + assert_equal 1, activerecord_column_option('foos', 'created_at', 'precision') + assert_equal 5, activerecord_column_option('foos', 'updated_at', 'precision') + end + + def test_timestamps_helper_with_custom_precision + ActiveRecord::Base.connection.create_table(:foos, force: true) do |t| + t.timestamps null: true, precision: 4 + end + assert_equal 4, activerecord_column_option('foos', 'created_at', 'precision') + assert_equal 4, activerecord_column_option('foos', 'updated_at', 'precision') + end + + def test_passing_precision_to_datetime_does_not_set_limit + ActiveRecord::Base.connection.create_table(:foos, force: true) do |t| + t.timestamps null: true, precision: 4 + end + assert_nil activerecord_column_option('foos', 'created_at', 'limit') + assert_nil activerecord_column_option('foos', 'updated_at', 'limit') + end + + def test_invalid_datetime_precision_raises_error + assert_raises ActiveRecord::ActiveRecordError do + ActiveRecord::Base.connection.create_table(:foos, force: true) do |t| + t.timestamps null: true, precision: 7 + end + end + end + + def test_mysql_agrees_with_activerecord_about_precision + ActiveRecord::Base.connection.create_table(:foos, force: true) do |t| + t.timestamps null: true, precision: 4 + end + assert_equal 4, mysql_datetime_precision('foos', 'created_at') + assert_equal 4, mysql_datetime_precision('foos', 'updated_at') + end + + def test_formatting_datetime_according_to_precision + ActiveRecord::Base.connection.create_table(:foos, force: true) do |t| + t.datetime :created_at, precision: 0 + t.datetime :updated_at, precision: 4 + end + date = ::Time.utc(2014, 8, 17, 12, 30, 0, 999999) + Foo.create!(created_at: date, updated_at: date) + assert foo = Foo.find_by(created_at: date) + assert_equal date.to_s, foo.created_at.to_s + assert_equal date.to_s, foo.updated_at.to_s + assert_equal 000000, foo.created_at.usec + assert_equal 999900, foo.updated_at.usec + end + + private + + def mysql_datetime_precision(table_name, column_name) + results = ActiveRecord::Base.connection.exec_query("SELECT column_name, datetime_precision FROM information_schema.columns WHERE table_name = '#{table_name}'") + result = results.find do |result_hash| + result_hash["column_name"] == column_name + end + result && result["datetime_precision"] + end + + def activerecord_column_option(tablename, column_name, option) + result = ActiveRecord::Base.connection.columns(tablename).find do |column| + column.name == column_name + end + result && result.send(option) + end + end +end diff --git a/activerecord/test/cases/adapters/mysql2/datetime_test.rb b/activerecord/test/cases/adapters/mysql2/datetime_test.rb new file mode 100644 index 0000000000..ae00f4e131 --- /dev/null +++ b/activerecord/test/cases/adapters/mysql2/datetime_test.rb @@ -0,0 +1,87 @@ +require 'cases/helper' + +if mysql_56? + class DateTimeTest < ActiveRecord::TestCase + self.use_transactional_fixtures = false + + class Foo < ActiveRecord::Base; end + + def test_default_datetime_precision + ActiveRecord::Base.connection.create_table(:foos, force: true) + ActiveRecord::Base.connection.add_column :foos, :created_at, :datetime + ActiveRecord::Base.connection.add_column :foos, :updated_at, :datetime + assert_nil activerecord_column_option('foos', 'created_at', 'precision') + end + + def test_datetime_data_type_with_precision + ActiveRecord::Base.connection.create_table(:foos, force: true) + ActiveRecord::Base.connection.add_column :foos, :created_at, :datetime, precision: 1 + ActiveRecord::Base.connection.add_column :foos, :updated_at, :datetime, precision: 5 + assert_equal 1, activerecord_column_option('foos', 'created_at', 'precision') + assert_equal 5, activerecord_column_option('foos', 'updated_at', 'precision') + end + + def test_timestamps_helper_with_custom_precision + ActiveRecord::Base.connection.create_table(:foos, force: true) do |t| + t.timestamps null: true, precision: 4 + end + assert_equal 4, activerecord_column_option('foos', 'created_at', 'precision') + assert_equal 4, activerecord_column_option('foos', 'updated_at', 'precision') + end + + def test_passing_precision_to_datetime_does_not_set_limit + ActiveRecord::Base.connection.create_table(:foos, force: true) do |t| + t.timestamps null: true, precision: 4 + end + assert_nil activerecord_column_option('foos', 'created_at', 'limit') + assert_nil activerecord_column_option('foos', 'updated_at', 'limit') + end + + def test_invalid_datetime_precision_raises_error + assert_raises ActiveRecord::ActiveRecordError do + ActiveRecord::Base.connection.create_table(:foos, force: true) do |t| + t.timestamps null: true, precision: 7 + end + end + end + + def test_mysql_agrees_with_activerecord_about_precision + ActiveRecord::Base.connection.create_table(:foos, force: true) do |t| + t.timestamps null: true, precision: 4 + end + assert_equal 4, mysql_datetime_precision('foos', 'created_at') + assert_equal 4, mysql_datetime_precision('foos', 'updated_at') + end + + def test_formatting_datetime_according_to_precision + ActiveRecord::Base.connection.create_table(:foos, force: true) do |t| + t.datetime :created_at, precision: 0 + t.datetime :updated_at, precision: 4 + end + date = ::Time.utc(2014, 8, 17, 12, 30, 0, 999999) + Foo.create!(created_at: date, updated_at: date) + assert foo = Foo.find_by(created_at: date) + assert_equal date.to_s, foo.created_at.to_s + assert_equal date.to_s, foo.updated_at.to_s + assert_equal 000000, foo.created_at.usec + assert_equal 999900, foo.updated_at.usec + end + + private + + def mysql_datetime_precision(table_name, column_name) + results = ActiveRecord::Base.connection.exec_query("SELECT column_name, datetime_precision FROM information_schema.columns WHERE table_name = '#{table_name}'") + result = results.find do |result_hash| + result_hash["column_name"] == column_name + end + result && result["datetime_precision"] + end + + def activerecord_column_option(tablename, column_name, option) + result = ActiveRecord::Base.connection.columns(tablename).find do |column| + column.name == column_name + end + result && result.send(option) + end + end +end diff --git a/activerecord/test/cases/schema_dumper_test.rb b/activerecord/test/cases/schema_dumper_test.rb index a094136766..57b7346503 100644 --- a/activerecord/test/cases/schema_dumper_test.rb +++ b/activerecord/test/cases/schema_dumper_test.rb @@ -232,6 +232,13 @@ class SchemaDumperTest < ActiveRecord::TestCase end end + if mysql_56? + def test_schema_dump_includes_datetime_precision + output = standard_dump + assert_match %r{t.datetime\s+"written_on",\s+precision: 6$}, output + end + end + def test_schema_dump_includes_decimal_options output = dump_all_table_schema([/^[^n]/]) assert_match %r{precision: 3,[[:space:]]+scale: 2,[[:space:]]+default: 2.78}, output diff --git a/activerecord/test/schema/schema.rb b/activerecord/test/schema/schema.rb index a9c2b1d112..5907d6ef97 100644 --- a/activerecord/test/schema/schema.rb +++ b/activerecord/test/schema/schema.rb @@ -726,7 +726,7 @@ ActiveRecord::Schema.define do t.string :author_name t.string :author_email_address if mysql_56? - t.datetime :written_on, limit: 6 + t.datetime :written_on, precision: 6 else t.datetime :written_on end |