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-rw-r--r--activerecord/CHANGELOG.md23
-rw-r--r--activerecord/lib/active_record/associations/collection_proxy.rb25
-rw-r--r--activerecord/lib/active_record/associations/has_one_association.rb2
-rw-r--r--activerecord/lib/active_record/associations/preloader.rb2
-rw-r--r--activerecord/lib/active_record/autosave_association.rb4
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb3
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract_adapter.rb5
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb39
-rw-r--r--activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb4
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/json.rb27
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb4
-rw-r--r--activerecord/lib/active_record/errors.rb7
-rw-r--r--activerecord/lib/active_record/migration.rb8
-rw-r--r--activerecord/lib/active_record/type.rb2
-rw-r--r--activerecord/lib/active_record/type/internal/abstract_json.rb33
-rw-r--r--activerecord/lib/active_record/validations/uniqueness.rb6
-rw-r--r--activerecord/test/cases/adapters/mysql2/json_test.rb172
-rw-r--r--activerecord/test/cases/associations/eager_test.rb8
-rw-r--r--activerecord/test/cases/associations/has_one_associations_test.rb8
-rw-r--r--activerecord/test/cases/migration_test.rb6
-rw-r--r--activerecord/test/cases/persistence_test.rb1
-rw-r--r--activerecord/test/cases/readonly_test.rb1
-rw-r--r--activerecord/test/cases/validations/uniqueness_validation_test.rb23
-rw-r--r--activerecord/test/models/developer.rb1
-rw-r--r--activerecord/test/models/ship.rb1
-rw-r--r--activerecord/test/schema/schema.rb1
26 files changed, 364 insertions, 52 deletions
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index bd86dfb88e..d880470d97 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,3 +1,26 @@
+* Only try to nullify has_one target association if the record is persisted.
+
+ Fixes #21223.
+
+ *Agis Anastasopoulos*
+
+* Uniqueness validator raises descriptive error when running on a persisted
+ record without primary key.
+
+ Closes #21304.
+
+ *Yves Senn*
+
+* Add a native JSON data type support in MySQL.
+
+ Example:
+
+ create_table :json_data_type do |t|
+ t.json :settings
+ end
+
+ *Ryuta Kamizono*
+
* Descriptive error message when fixtures contain a missing column.
Closes #21201.
diff --git a/activerecord/lib/active_record/associations/collection_proxy.rb b/activerecord/lib/active_record/associations/collection_proxy.rb
index b5a8c81fe4..29c711082a 100644
--- a/activerecord/lib/active_record/associations/collection_proxy.rb
+++ b/activerecord/lib/active_record/associations/collection_proxy.rb
@@ -227,6 +227,31 @@ module ActiveRecord
@association.last(*args)
end
+ # Gives a record (or N records if a parameter is supplied) from the collection
+ # using the same rules as <tt>ActiveRecord::Base.take</tt>.
+ #
+ # class Person < ActiveRecord::Base
+ # has_many :pets
+ # end
+ #
+ # person.pets
+ # # => [
+ # # #<Pet id: 1, name: "Fancy-Fancy", person_id: 1>,
+ # # #<Pet id: 2, name: "Spook", person_id: 1>,
+ # # #<Pet id: 3, name: "Choo-Choo", person_id: 1>
+ # # ]
+ #
+ # person.pets.take # => #<Pet id: 1, name: "Fancy-Fancy", person_id: 1>
+ #
+ # person.pets.take(2)
+ # # => [
+ # # #<Pet id: 1, name: "Fancy-Fancy", person_id: 1>,
+ # # #<Pet id: 2, name: "Spook", person_id: 1>
+ # # ]
+ #
+ # another_person_without.pets # => []
+ # another_person_without.pets.take # => nil
+ # another_person_without.pets.take(2) # => []
def take(n = nil)
@association.take(n)
end
diff --git a/activerecord/lib/active_record/associations/has_one_association.rb b/activerecord/lib/active_record/associations/has_one_association.rb
index 5a92bc5e8a..1829453d73 100644
--- a/activerecord/lib/active_record/associations/has_one_association.rb
+++ b/activerecord/lib/active_record/associations/has_one_association.rb
@@ -65,7 +65,7 @@ module ActiveRecord
when :destroy
target.destroy
when :nullify
- target.update_columns(reflection.foreign_key => nil)
+ target.update_columns(reflection.foreign_key => nil) if target.persisted?
end
end
end
diff --git a/activerecord/lib/active_record/associations/preloader.rb b/activerecord/lib/active_record/associations/preloader.rb
index 6ecc741195..3992a240b9 100644
--- a/activerecord/lib/active_record/associations/preloader.rb
+++ b/activerecord/lib/active_record/associations/preloader.rb
@@ -116,7 +116,7 @@ module ActiveRecord
when String
preloaders_for_one(association.to_sym, records, scope)
else
- raise ArgumentError, "#{association.inspect} was not recognised for preload"
+ raise ArgumentError, "#{association.inspect} was not recognized for preload"
end
end
diff --git a/activerecord/lib/active_record/autosave_association.rb b/activerecord/lib/active_record/autosave_association.rb
index dbb0e2fab2..d0de42d27c 100644
--- a/activerecord/lib/active_record/autosave_association.rb
+++ b/activerecord/lib/active_record/autosave_association.rb
@@ -234,7 +234,7 @@ module ActiveRecord
super
end
- # Marks this record to be destroyed as part of the parents save transaction.
+ # Marks this record to be destroyed as part of the parent's save transaction.
# This does _not_ actually destroy the record instantly, rather child record will be destroyed
# when <tt>parent.save</tt> is called.
#
@@ -243,7 +243,7 @@ module ActiveRecord
@marked_for_destruction = true
end
- # Returns whether or not this record will be destroyed as part of the parents save transaction.
+ # Returns whether or not this record will be destroyed as part of the parent's save transaction.
#
# Only useful if the <tt>:autosave</tt> option on the parent is enabled for this associated model.
def marked_for_destruction?
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb
index d17e272ed1..3115e03ea2 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb
@@ -214,6 +214,7 @@ module ActiveRecord
@name = name
end
+ # Returns an array of ColumnDefinition objects for the columns of the table.
def columns; @columns_hash.values; end
# Returns a ColumnDefinition for the column with name +name+.
@@ -369,6 +370,8 @@ module ActiveRecord
self
end
+ # remove the column +name+ from the table.
+ # remove_column(:account_id)
def remove_column(name)
@columns_hash.delete name.to_s
end
diff --git a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
index 56227ddd80..ed14c781c6 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
@@ -266,6 +266,11 @@ module ActiveRecord
false
end
+ # Does this adapter support json data type?
+ def supports_json?
+ false
+ end
+
# This is meant to be implemented by the adapters that support extensions
def disable_extension(name)
end
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 af156c9c78..b3e55a0b90 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
@@ -10,6 +10,10 @@ module ActiveRecord
options[:auto_increment] = true if type == :bigint
super
end
+
+ def json(*args, **options)
+ args.each { |name| column(name, :json, options) }
+ end
end
class ColumnDefinition < ActiveRecord::ConnectionAdapters::ColumnDefinition
@@ -242,17 +246,19 @@ module ActiveRecord
QUOTED_TRUE, QUOTED_FALSE = '1', '0'
NATIVE_DATABASE_TYPES = {
- :primary_key => "int(11) auto_increment PRIMARY KEY",
- :string => { :name => "varchar", :limit => 255 },
- :text => { :name => "text" },
- :integer => { :name => "int", :limit => 4 },
- :float => { :name => "float" },
- :decimal => { :name => "decimal" },
- :datetime => { :name => "datetime" },
- :time => { :name => "time" },
- :date => { :name => "date" },
- :binary => { :name => "blob" },
- :boolean => { :name => "tinyint", :limit => 1 }
+ primary_key: "int(11) auto_increment PRIMARY KEY",
+ string: { name: "varchar", limit: 255 },
+ text: { name: "text" },
+ integer: { name: "int", limit: 4 },
+ float: { name: "float" },
+ decimal: { name: "decimal" },
+ datetime: { name: "datetime" },
+ time: { name: "time" },
+ date: { name: "date" },
+ binary: { name: "blob" },
+ boolean: { name: "tinyint", limit: 1 },
+ bigint: { name: "bigint" },
+ json: { name: "json" },
}
INDEX_TYPES = [:fulltext, :spatial]
@@ -790,6 +796,7 @@ module ActiveRecord
m.register_type %r(longblob)i, Type::Binary.new(limit: 2**32 - 1)
m.register_type %r(^float)i, Type::Float.new(limit: 24)
m.register_type %r(^double)i, Type::Float.new(limit: 53)
+ m.register_type %r(^json)i, MysqlJson.new
register_integer_type m, %r(^bigint)i, limit: 8
register_integer_type m, %r(^int)i, limit: 4
@@ -1043,6 +1050,14 @@ module ActiveRecord
end
end
+ class MysqlJson < Type::Internal::AbstractJson # :nodoc:
+ def changed_in_place?(raw_old_value, new_value)
+ # Normalization is required because MySQL JSON data format includes
+ # the space between the elements.
+ super(serialize(deserialize(raw_old_value)), new_value)
+ end
+ end
+
class MysqlString < Type::String # :nodoc:
def serialize(value)
case value
@@ -1063,6 +1078,8 @@ module ActiveRecord
end
end
+ ActiveRecord::Type.register(:json, MysqlJson, adapter: :mysql)
+ ActiveRecord::Type.register(:json, MysqlJson, adapter: :mysql2)
ActiveRecord::Type.register(:string, MysqlString, adapter: :mysql)
ActiveRecord::Type.register(:string, MysqlString, adapter: :mysql2)
end
diff --git a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb
index b7db57c9fe..ff43c7ec42 100644
--- a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb
@@ -41,6 +41,10 @@ module ActiveRecord
true
end
+ def supports_json?
+ version >= '5.7.8'
+ end
+
# HELPER METHODS ===========================================
def each_hash(result) # :nodoc:
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/json.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/json.rb
index 8e1256baad..dbc879ffd4 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/json.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/json.rb
@@ -2,32 +2,7 @@ module ActiveRecord
module ConnectionAdapters
module PostgreSQL
module OID # :nodoc:
- class Json < Type::Value # :nodoc:
- include Type::Helpers::Mutable
-
- def type
- :json
- end
-
- def deserialize(value)
- if value.is_a?(::String)
- ::ActiveSupport::JSON.decode(value) rescue nil
- else
- value
- end
- end
-
- def serialize(value)
- if value.is_a?(::Array) || value.is_a?(::Hash)
- ::ActiveSupport::JSON.encode(value)
- else
- value
- end
- end
-
- def accessor
- ActiveRecord::Store::StringKeyedHashAccessor
- end
+ class Json < Type::Internal::AbstractJson
end
end
end
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
index 2c43c46a3d..27291bd2ea 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
@@ -201,6 +201,10 @@ module ActiveRecord
true
end
+ def supports_json?
+ postgresql_version >= 90200
+ end
+
def index_algorithms
{ concurrently: 'CONCURRENTLY' }
end
diff --git a/activerecord/lib/active_record/errors.rb b/activerecord/lib/active_record/errors.rb
index d589620f8a..718f04871d 100644
--- a/activerecord/lib/active_record/errors.rb
+++ b/activerecord/lib/active_record/errors.rb
@@ -218,11 +218,12 @@ module ActiveRecord
class UnknownPrimaryKey < ActiveRecordError
attr_reader :model
- def initialize(model)
- super("Unknown primary key for table #{model.table_name} in model #{model}.")
+ def initialize(model, description = nil)
+ message = "Unknown primary key for table #{model.table_name} in model #{model}."
+ message += "\n#{description}" if description
+ super(message)
@model = model
end
-
end
# Raised when a relation cannot be mutated because it's already loaded.
diff --git a/activerecord/lib/active_record/migration.rb b/activerecord/lib/active_record/migration.rb
index b7b508d853..04c6124eef 100644
--- a/activerecord/lib/active_record/migration.rb
+++ b/activerecord/lib/active_record/migration.rb
@@ -376,6 +376,7 @@ module ActiveRecord
attr_accessor :delegate # :nodoc:
attr_accessor :disable_ddl_transaction # :nodoc:
+ # Raises <tt>ActiveRecord::PendingMigrationError</tt> error if any migrations are pending.
def check_pending!(connection = Base.connection)
raise ActiveRecord::PendingMigrationError if ActiveRecord::Migrator.needs_migration?(connection)
end
@@ -408,7 +409,10 @@ module ActiveRecord
new.migrate direction
end
- # Disable DDL transactions for this migration.
+ # Disable the transaction wrapping this migration.
+ # You can still create your own transactions even after calling #disable_ddl_transaction!
+ #
+ # For more details read the {"Transactional Migrations" section above}[rdoc-ref:Migration].
def disable_ddl_transaction!
@disable_ddl_transaction = true
end
@@ -810,7 +814,7 @@ module ActiveRecord
new(:up, migrations, target_version).migrate
end
- def down(migrations_paths, target_version = nil, &block)
+ def down(migrations_paths, target_version = nil)
migrations = migrations(migrations_paths)
migrations.select! { |m| yield m } if block_given?
diff --git a/activerecord/lib/active_record/type.rb b/activerecord/lib/active_record/type.rb
index 2c0cda69d0..53f3b53bec 100644
--- a/activerecord/lib/active_record/type.rb
+++ b/activerecord/lib/active_record/type.rb
@@ -20,6 +20,8 @@ require 'active_record/type/adapter_specific_registry'
require 'active_record/type/type_map'
require 'active_record/type/hash_lookup_type_map'
+require 'active_record/type/internal/abstract_json'
+
module ActiveRecord
module Type
@registry = AdapterSpecificRegistry.new
diff --git a/activerecord/lib/active_record/type/internal/abstract_json.rb b/activerecord/lib/active_record/type/internal/abstract_json.rb
new file mode 100644
index 0000000000..963a8245d0
--- /dev/null
+++ b/activerecord/lib/active_record/type/internal/abstract_json.rb
@@ -0,0 +1,33 @@
+module ActiveRecord
+ module Type
+ module Internal # :nodoc:
+ class AbstractJson < Type::Value # :nodoc:
+ include Type::Helpers::Mutable
+
+ def type
+ :json
+ end
+
+ def deserialize(value)
+ if value.is_a?(::String)
+ ::ActiveSupport::JSON.decode(value) rescue nil
+ else
+ value
+ end
+ end
+
+ def serialize(value)
+ if value.is_a?(::Array) || value.is_a?(::Hash)
+ ::ActiveSupport::JSON.encode(value)
+ else
+ value
+ end
+ end
+
+ def accessor
+ ActiveRecord::Store::StringKeyedHashAccessor
+ end
+ end
+ end
+ end
+end
diff --git a/activerecord/lib/active_record/validations/uniqueness.rb b/activerecord/lib/active_record/validations/uniqueness.rb
index 32d17a1392..5706bbd903 100644
--- a/activerecord/lib/active_record/validations/uniqueness.rb
+++ b/activerecord/lib/active_record/validations/uniqueness.rb
@@ -18,7 +18,11 @@ module ActiveRecord
relation = build_relation(finder_class, table, attribute, value)
if record.persisted? && finder_class.primary_key.to_s != attribute.to_s
- relation = relation.where.not(finder_class.primary_key => record.id)
+ if finder_class.primary_key
+ relation = relation.where.not(finder_class.primary_key => record.id)
+ else
+ raise UnknownPrimaryKey.new(finder_class, "Can not validate uniqueness for persisted record without primary key.")
+ end
end
relation = scope_relation(record, table, relation)
relation = relation.merge(options[:conditions]) if options[:conditions]
diff --git a/activerecord/test/cases/adapters/mysql2/json_test.rb b/activerecord/test/cases/adapters/mysql2/json_test.rb
new file mode 100644
index 0000000000..c8c933af5e
--- /dev/null
+++ b/activerecord/test/cases/adapters/mysql2/json_test.rb
@@ -0,0 +1,172 @@
+require 'cases/helper'
+require 'support/schema_dumping_helper'
+
+if ActiveRecord::Base.connection.supports_json?
+class Mysql2JSONTest < ActiveRecord::Mysql2TestCase
+ include SchemaDumpingHelper
+ self.use_transactional_tests = false
+
+ class JsonDataType < ActiveRecord::Base
+ self.table_name = 'json_data_type'
+
+ store_accessor :settings, :resolution
+ end
+
+ def setup
+ @connection = ActiveRecord::Base.connection
+ begin
+ @connection.create_table('json_data_type') do |t|
+ t.json 'payload'
+ t.json 'settings'
+ end
+ end
+ end
+
+ def teardown
+ @connection.drop_table :json_data_type, if_exists: true
+ JsonDataType.reset_column_information
+ end
+
+ def test_column
+ column = JsonDataType.columns_hash["payload"]
+ assert_equal :json, column.type
+ assert_equal 'json', column.sql_type
+
+ type = JsonDataType.type_for_attribute("payload")
+ assert_not type.binary?
+ end
+
+ def test_change_table_supports_json
+ @connection.change_table('json_data_type') do |t|
+ t.json 'users'
+ end
+ JsonDataType.reset_column_information
+ column = JsonDataType.columns_hash['users']
+ assert_equal :json, column.type
+ end
+
+ def test_schema_dumping
+ output = dump_table_schema("json_data_type")
+ assert_match(/t\.json\s+"settings"/, output)
+ end
+
+ def test_cast_value_on_write
+ x = JsonDataType.new payload: {"string" => "foo", :symbol => :bar}
+ assert_equal({"string" => "foo", :symbol => :bar}, x.payload_before_type_cast)
+ assert_equal({"string" => "foo", "symbol" => "bar"}, x.payload)
+ x.save
+ assert_equal({"string" => "foo", "symbol" => "bar"}, x.reload.payload)
+ end
+
+ def test_type_cast_json
+ type = JsonDataType.type_for_attribute("payload")
+
+ data = "{\"a_key\":\"a_value\"}"
+ hash = type.deserialize(data)
+ assert_equal({'a_key' => 'a_value'}, hash)
+ assert_equal({'a_key' => 'a_value'}, type.deserialize(data))
+
+ assert_equal({}, type.deserialize("{}"))
+ assert_equal({'key'=>nil}, type.deserialize('{"key": null}'))
+ assert_equal({'c'=>'}','"a"'=>'b "a b'}, type.deserialize(%q({"c":"}", "\"a\"":"b \"a b"})))
+ end
+
+ def test_rewrite
+ @connection.execute "insert into json_data_type (payload) VALUES ('{\"k\":\"v\"}')"
+ x = JsonDataType.first
+ x.payload = { '"a\'' => 'b' }
+ assert x.save!
+ end
+
+ def test_select
+ @connection.execute "insert into json_data_type (payload) VALUES ('{\"k\":\"v\"}')"
+ x = JsonDataType.first
+ assert_equal({'k' => 'v'}, x.payload)
+ end
+
+ def test_select_multikey
+ @connection.execute %q|insert into json_data_type (payload) VALUES ('{"k1":"v1", "k2":"v2", "k3":[1,2,3]}')|
+ x = JsonDataType.first
+ assert_equal({'k1' => 'v1', 'k2' => 'v2', 'k3' => [1,2,3]}, x.payload)
+ end
+
+ def test_null_json
+ @connection.execute %q|insert into json_data_type (payload) VALUES(null)|
+ x = JsonDataType.first
+ assert_equal(nil, x.payload)
+ end
+
+ def test_select_array_json_value
+ @connection.execute %q|insert into json_data_type (payload) VALUES ('["v0",{"k1":"v1"}]')|
+ x = JsonDataType.first
+ assert_equal(['v0', {'k1' => 'v1'}], x.payload)
+ end
+
+ def test_rewrite_array_json_value
+ @connection.execute %q|insert into json_data_type (payload) VALUES ('["v0",{"k1":"v1"}]')|
+ x = JsonDataType.first
+ x.payload = ['v1', {'k2' => 'v2'}, 'v3']
+ assert x.save!
+ end
+
+ def test_with_store_accessors
+ x = JsonDataType.new(resolution: "320×480")
+ assert_equal "320×480", x.resolution
+
+ x.save!
+ x = JsonDataType.first
+ assert_equal "320×480", x.resolution
+
+ x.resolution = "640×1136"
+ x.save!
+
+ x = JsonDataType.first
+ assert_equal "640×1136", x.resolution
+ end
+
+ def test_duplication_with_store_accessors
+ x = JsonDataType.new(resolution: "320×480")
+ assert_equal "320×480", x.resolution
+
+ y = x.dup
+ assert_equal "320×480", y.resolution
+ end
+
+ def test_yaml_round_trip_with_store_accessors
+ x = JsonDataType.new(resolution: "320×480")
+ assert_equal "320×480", x.resolution
+
+ y = YAML.load(YAML.dump(x))
+ assert_equal "320×480", y.resolution
+ end
+
+ def test_changes_in_place
+ json = JsonDataType.new
+ assert_not json.changed?
+
+ json.payload = { 'one' => 'two' }
+ assert json.changed?
+ assert json.payload_changed?
+
+ json.save!
+ assert_not json.changed?
+
+ json.payload['three'] = 'four'
+ assert json.payload_changed?
+
+ json.save!
+ json.reload
+
+ assert_equal({ 'one' => 'two', 'three' => 'four' }, json.payload)
+ assert_not json.changed?
+ end
+
+ def test_assigning_invalid_json
+ json = JsonDataType.new
+
+ json.payload = 'foo'
+
+ assert_nil json.payload
+ end
+end
+end
diff --git a/activerecord/test/cases/associations/eager_test.rb b/activerecord/test/cases/associations/eager_test.rb
index ffbf60e390..8ed7b4e39f 100644
--- a/activerecord/test/cases/associations/eager_test.rb
+++ b/activerecord/test/cases/associations/eager_test.rb
@@ -1325,6 +1325,14 @@ class EagerAssociationTest < ActiveRecord::TestCase
assert_match message, error.message
end
+ test "preload with invalid argument" do
+ exception = assert_raises(ArgumentError) do
+ Author.preload(10).to_a
+ end
+ assert_equal('10 was not recognized for preload', exception.message)
+ end
+
+
test "preloading readonly association" do
# has-one
firm = Firm.where(id: "1").preload(:readonly_account).first!
diff --git a/activerecord/test/cases/associations/has_one_associations_test.rb b/activerecord/test/cases/associations/has_one_associations_test.rb
index 5a8afaf4d2..d46e7ad235 100644
--- a/activerecord/test/cases/associations/has_one_associations_test.rb
+++ b/activerecord/test/cases/associations/has_one_associations_test.rb
@@ -107,6 +107,14 @@ class HasOneAssociationsTest < ActiveRecord::TestCase
assert_nil Account.find(old_account_id).firm_id
end
+ def test_nullification_on_destroyed_association
+ developer = Developer.create!(name: "Someone")
+ ship = Ship.create!(name: "Planet Caravan", developer: developer)
+ ship.destroy
+ assert !ship.persisted?
+ assert !developer.persisted?
+ end
+
def test_natural_assignment_to_nil_after_destroy
firm = companies(:rails_core)
old_account_id = firm.account.id
diff --git a/activerecord/test/cases/migration_test.rb b/activerecord/test/cases/migration_test.rb
index b2f209fe97..11e42f28dc 100644
--- a/activerecord/test/cases/migration_test.rb
+++ b/activerecord/test/cases/migration_test.rb
@@ -132,13 +132,9 @@ class MigrationTest < ActiveRecord::TestCase
Person.connection.drop_table :testings2, if_exists: true
end
- def connection
- ActiveRecord::Base.connection
- end
-
def test_migration_instance_has_connection
migration = Class.new(ActiveRecord::Migration).new
- assert_equal connection, migration.connection
+ assert_equal ActiveRecord::Base.connection, migration.connection
end
def test_method_missing_delegates_to_connection
diff --git a/activerecord/test/cases/persistence_test.rb b/activerecord/test/cases/persistence_test.rb
index 42e7507631..cdf63957f4 100644
--- a/activerecord/test/cases/persistence_test.rb
+++ b/activerecord/test/cases/persistence_test.rb
@@ -17,6 +17,7 @@ require 'models/minivan'
require 'models/owner'
require 'models/person'
require 'models/pet'
+require 'models/ship'
require 'models/toy'
require 'rexml/document'
diff --git a/activerecord/test/cases/readonly_test.rb b/activerecord/test/cases/readonly_test.rb
index 1c919f0b57..5f6eb41240 100644
--- a/activerecord/test/cases/readonly_test.rb
+++ b/activerecord/test/cases/readonly_test.rb
@@ -7,6 +7,7 @@ require 'models/computer'
require 'models/project'
require 'models/reader'
require 'models/person'
+require 'models/ship'
class ReadOnlyTest < ActiveRecord::TestCase
fixtures :authors, :posts, :comments, :developers, :projects, :developers_projects, :people, :readers
diff --git a/activerecord/test/cases/validations/uniqueness_validation_test.rb b/activerecord/test/cases/validations/uniqueness_validation_test.rb
index ceca2c8366..7502a55391 100644
--- a/activerecord/test/cases/validations/uniqueness_validation_test.rb
+++ b/activerecord/test/cases/validations/uniqueness_validation_test.rb
@@ -4,6 +4,7 @@ require 'models/reply'
require 'models/warehouse_thing'
require 'models/guid'
require 'models/event'
+require 'models/dashboard'
class Wizard < ActiveRecord::Base
self.abstract_class = true
@@ -446,4 +447,26 @@ class UniquenessValidationTest < ActiveRecord::TestCase
key2.key_number = 10
assert_not key2.valid?
end
+
+ def test_validate_uniqueness_without_primary_key
+ klass = Class.new(ActiveRecord::Base) do
+ self.table_name = "dashboards"
+
+ validates_uniqueness_of :dashboard_id
+
+ def self.name; "Dashboard" end
+ end
+
+ abc = klass.create!(dashboard_id: "abc")
+ assert klass.new(dashboard_id: "xyz").valid?
+ assert_not klass.new(dashboard_id: "abc").valid?
+
+ abc.dashboard_id = "def"
+
+ e = assert_raises ActiveRecord::UnknownPrimaryKey do
+ abc.save!
+ end
+ assert_match(/\AUnknown primary key for table dashboards in model/, e.message)
+ assert_match(/Can not validate uniqueness for persisted record without primary key.\z/, e.message)
+ end
end
diff --git a/activerecord/test/models/developer.rb b/activerecord/test/models/developer.rb
index d2a5a7fc49..8ac7a9df6a 100644
--- a/activerecord/test/models/developer.rb
+++ b/activerecord/test/models/developer.rb
@@ -50,6 +50,7 @@ class Developer < ActiveRecord::Base
has_many :firms, :through => :contracts, :source => :firm
has_many :comments, ->(developer) { where(body: "I'm #{developer.name}") }
has_many :ratings, through: :comments
+ has_one :ship, dependent: :nullify
scope :jamises, -> { where(:name => 'Jamis') }
diff --git a/activerecord/test/models/ship.rb b/activerecord/test/models/ship.rb
index 95172e4d3e..e333b964ab 100644
--- a/activerecord/test/models/ship.rb
+++ b/activerecord/test/models/ship.rb
@@ -3,6 +3,7 @@ class Ship < ActiveRecord::Base
belongs_to :pirate
belongs_to :update_only_pirate, :class_name => 'Pirate'
+ belongs_to :developer, dependent: :destroy
has_many :parts, :class_name => 'ShipPart'
has_many :treasures
diff --git a/activerecord/test/schema/schema.rb b/activerecord/test/schema/schema.rb
index 6f34115534..994ece9244 100644
--- a/activerecord/test/schema/schema.rb
+++ b/activerecord/test/schema/schema.rb
@@ -673,6 +673,7 @@ ActiveRecord::Schema.define do
create_table :ships, force: true do |t|
t.string :name
t.integer :pirate_id
+ t.belongs_to :developer
t.integer :update_only_pirate_id
# Conventionally named column for counter_cache
t.integer :treasures_count, default: 0