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-rw-r--r--activerecord/lib/active_record/associations/has_many_association.rb2
-rw-r--r--activerecord/lib/active_record/associations/join_dependency/join_association.rb11
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb51
-rw-r--r--activerecord/lib/active_record/counter_cache.rb2
-rw-r--r--activerecord/lib/active_record/migration.rb10
-rw-r--r--activerecord/lib/active_record/railties/databases.rake5
-rw-r--r--activerecord/lib/active_record/reflection.rb63
-rw-r--r--activerecord/lib/active_record/tasks/database_tasks.rb10
-rw-r--r--activerecord/test/cases/tasks/database_tasks_test.rb13
9 files changed, 103 insertions, 64 deletions
diff --git a/activerecord/lib/active_record/associations/has_many_association.rb b/activerecord/lib/active_record/associations/has_many_association.rb
index 2a97d0ed31..79c3d2b0f5 100644
--- a/activerecord/lib/active_record/associations/has_many_association.rb
+++ b/activerecord/lib/active_record/associations/has_many_association.rb
@@ -124,7 +124,7 @@ module ActiveRecord
def inverse_updates_counter_named?(counter_name, reflection = reflection())
reflection.klass._reflections.values.any? { |inverse_reflection|
- :belongs_to == inverse_reflection.macro &&
+ inverse_reflection.belongs_to? &&
inverse_reflection.counter_cache_column == counter_name
}
end
diff --git a/activerecord/lib/active_record/associations/join_dependency/join_association.rb b/activerecord/lib/active_record/associations/join_dependency/join_association.rb
index 719eff9acc..a9d1099871 100644
--- a/activerecord/lib/active_record/associations/join_dependency/join_association.rb
+++ b/activerecord/lib/active_record/associations/join_dependency/join_association.rb
@@ -37,14 +37,9 @@ module ActiveRecord
table = tables.shift
klass = reflection.klass
- case reflection.source_macro
- when :belongs_to
- key = reflection.association_primary_key
- foreign_key = reflection.foreign_key
- else
- key = reflection.foreign_key
- foreign_key = reflection.active_record_primary_key
- end
+ join_keys = reflection.join_keys(klass)
+ key = join_keys.key
+ foreign_key = join_keys.foreign_key
constraint = build_constraint(klass, table, key, foreign_table, foreign_key)
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb
index cb75070e3a..a5fa9d6adc 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb
@@ -462,23 +462,44 @@ module ActiveRecord
#
# For example, suppose that you have 5 models, with the following hierarchy:
#
- # |
- # +-- Book
- # | |
- # | +-- ScaryBook
- # | +-- GoodBook
- # +-- Author
- # +-- BankAccount
+ # class Author < ActiveRecord::Base
+ # end
#
- # Suppose that Book is to connect to a separate database (i.e. one other
- # than the default database). Then Book, ScaryBook and GoodBook will all use
- # the same connection pool. Likewise, Author and BankAccount will use the
- # same connection pool. However, the connection pool used by Author/BankAccount
- # is not the same as the one used by Book/ScaryBook/GoodBook.
+ # class BankAccount < ActiveRecord::Base
+ # end
#
- # Normally there is only a single ConnectionHandler instance, accessible via
- # ActiveRecord::Base.connection_handler. Active Record models use this to
- # determine the connection pool that they should use.
+ # class Book < ActiveRecord::Base
+ # establish_connection "library_db"
+ # end
+ #
+ # class ScaryBook < Book
+ # end
+ #
+ # class GoodBook < Book
+ # end
+ #
+ # And a database.yml that looked like this:
+ #
+ # development:
+ # database: my_application
+ # host: localhost
+ #
+ # library_db:
+ # database: library
+ # host: some.library.org
+ #
+ # Your primary database in the development environment is "my_application"
+ # but the Book model connects to a separate database called "library_db"
+ # (this can even be a database on a different machine).
+ #
+ # Book, ScaryBook and GoodBook will all use the same connection pool to
+ # "library_db" while Author, BankAccount, and any other models you create
+ # will use the default connection pool to "my_application".
+ #
+ # The various connection pools are managed by a single instance of
+ # ConnectionHandler accessible via ActiveRecord::Base.connection_handler.
+ # All Active Record models use this handler to determine the connection pool that they
+ # should use.
class ConnectionHandler
def initialize
# These caches are keyed by klass.name, NOT klass. Keying them by klass
diff --git a/activerecord/lib/active_record/counter_cache.rb b/activerecord/lib/active_record/counter_cache.rb
index a33c7c64a7..f0b6afc4b4 100644
--- a/activerecord/lib/active_record/counter_cache.rb
+++ b/activerecord/lib/active_record/counter_cache.rb
@@ -34,7 +34,7 @@ module ActiveRecord
foreign_key = has_many_association.foreign_key.to_s
child_class = has_many_association.klass
- reflection = child_class._reflections.values.find { |e| :belongs_to == e.macro && e.foreign_key.to_s == foreign_key && e.options[:counter_cache].present? }
+ reflection = child_class._reflections.values.find { |e| e.belongs_to? && e.foreign_key.to_s == foreign_key && e.options[:counter_cache].present? }
counter_name = reflection.counter_cache_column
stmt = unscoped.where(arel_table[primary_key].eq(object.id)).arel.compile_update({
diff --git a/activerecord/lib/active_record/migration.rb b/activerecord/lib/active_record/migration.rb
index e94b6ae9eb..7c4dad21a0 100644
--- a/activerecord/lib/active_record/migration.rb
+++ b/activerecord/lib/active_record/migration.rb
@@ -814,22 +814,22 @@ module ActiveRecord
migrations = migrations(migrations_paths)
migrations.select! { |m| yield m } if block_given?
- self.new(:up, migrations, target_version).migrate
+ new(:up, migrations, target_version).migrate
end
def down(migrations_paths, target_version = nil, &block)
migrations = migrations(migrations_paths)
migrations.select! { |m| yield m } if block_given?
- self.new(:down, migrations, target_version).migrate
+ new(:down, migrations, target_version).migrate
end
def run(direction, migrations_paths, target_version)
- self.new(direction, migrations(migrations_paths), target_version).run
+ new(direction, migrations(migrations_paths), target_version).run
end
def open(migrations_paths)
- self.new(:up, migrations(migrations_paths), nil)
+ new(:up, migrations(migrations_paths), nil)
end
def schema_migrations_table_name
@@ -892,7 +892,7 @@ module ActiveRecord
private
def move(direction, migrations_paths, steps)
- migrator = self.new(direction, migrations(migrations_paths))
+ migrator = new(direction, migrations(migrations_paths))
start_index = migrator.migrations.index(migrator.current_migration)
if start_index
diff --git a/activerecord/lib/active_record/railties/databases.rake b/activerecord/lib/active_record/railties/databases.rake
index fa94df7a52..ac385817e4 100644
--- a/activerecord/lib/active_record/railties/databases.rake
+++ b/activerecord/lib/active_record/railties/databases.rake
@@ -41,10 +41,7 @@ db_namespace = namespace :db do
desc "Migrate the database (options: VERSION=x, VERBOSE=false, SCOPE=blog)."
task :migrate => [:environment, :load_config] do
- ActiveRecord::Migration.verbose = ENV["VERBOSE"] ? ENV["VERBOSE"] == "true" : true
- ActiveRecord::Migrator.migrate(ActiveRecord::Migrator.migrations_paths, ENV["VERSION"] ? ENV["VERSION"].to_i : nil) do |migration|
- ENV["SCOPE"].blank? || (ENV["SCOPE"] == migration.scope)
- end
+ ActiveRecord::Tasks::DatabaseTasks.migrate
db_namespace['_dump'].invoke if ActiveRecord::Base.dump_schema_after_migration
end
diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb
index 1672128aa3..575e588f35 100644
--- a/activerecord/lib/active_record/reflection.rb
+++ b/activerecord/lib/active_record/reflection.rb
@@ -149,19 +149,10 @@ module ActiveRecord
JoinKeys = Struct.new(:key, :foreign_key) # :nodoc:
def join_keys(assoc_klass)
- if source_macro == :belongs_to
- if polymorphic?
- reflection_key = association_primary_key(assoc_klass)
- else
- reflection_key = association_primary_key
- end
- reflection_foreign_key = foreign_key
- else
- reflection_foreign_key = active_record_primary_key
- reflection_key = foreign_key
- end
- JoinKeys.new(reflection_key, reflection_foreign_key)
+ JoinKeys.new(foreign_key, active_record_primary_key)
end
+
+ def source_macro; macro; end
end
# Base class for AggregateReflection and AssociationReflection. Objects of
# AggregateReflection and AssociationReflection are returned by the Reflection::ClassMethods.
@@ -354,9 +345,8 @@ Joining, Preloading and eager loading of these associations is deprecated and wi
end
alias :check_eager_loadable! :check_preloadable!
- def join_id_for(owner) #:nodoc:
- key = (source_macro == :belongs_to) ? foreign_key : active_record_primary_key
- owner[key]
+ def join_id_for(owner) # :nodoc:
+ owner[active_record_primary_key]
end
def through_reflection
@@ -383,8 +373,6 @@ Joining, Preloading and eager loading of these associations is deprecated and wi
scope ? [[scope]] : [[]]
end
- def source_macro; macro; end
-
def has_inverse?
inverse_name
end
@@ -431,14 +419,10 @@ Joining, Preloading and eager loading of these associations is deprecated and wi
end
# Returns +true+ if +self+ is a +belongs_to+ reflection.
- def belongs_to?
- macro == :belongs_to
- end
+ def belongs_to?; false; end
# Returns +true+ if +self+ is a +has_one+ reflection.
- def has_one?
- macro == :has_one
- end
+ def has_one?; false; end
def association_class
case macro
@@ -578,35 +562,46 @@ Joining, Preloading and eager loading of these associations is deprecated and wi
end
end
- class HasManyReflection < AssociationReflection #:nodoc:
+ class HasManyReflection < AssociationReflection # :nodoc:
def initialize(name, scope, options, active_record)
super(name, scope, options, active_record)
end
def macro; :has_many; end
- def collection?
- true
- end
+ def collection?; true; end
end
- class HasOneReflection < AssociationReflection #:nodoc:
+ class HasOneReflection < AssociationReflection # :nodoc:
def initialize(name, scope, options, active_record)
super(name, scope, options, active_record)
end
def macro; :has_one; end
+
+ def has_one?; true; end
end
- class BelongsToReflection < AssociationReflection #:nodoc:
+ class BelongsToReflection < AssociationReflection # :nodoc:
def initialize(name, scope, options, active_record)
super(name, scope, options, active_record)
end
def macro; :belongs_to; end
+
+ def belongs_to?; true; end
+
+ def join_keys(assoc_klass)
+ key = polymorphic? ? association_primary_key(assoc_klass) : association_primary_key
+ JoinKeys.new(key, foreign_key)
+ end
+
+ def join_id_for(owner) # :nodoc:
+ owner[foreign_key]
+ end
end
- class HasAndBelongsToManyReflection < AssociationReflection #:nodoc:
+ class HasAndBelongsToManyReflection < AssociationReflection # :nodoc:
def initialize(name, scope, options, active_record)
super
end
@@ -737,6 +732,10 @@ Joining, Preloading and eager loading of these associations is deprecated and wi
end
end
+ def join_keys(assoc_klass)
+ source_reflection.join_keys(assoc_klass)
+ end
+
# The macro used by the source association
def source_macro
source_reflection.source_macro
@@ -804,6 +803,10 @@ directive on your declaration like:
through_reflection.options
end
+ def join_id_for(owner) # :nodoc:
+ source_reflection.join_id_for(owner)
+ end
+
def check_validity!
if through_reflection.nil?
raise HasManyThroughAssociationNotFoundError.new(active_record.name, self)
diff --git a/activerecord/lib/active_record/tasks/database_tasks.rb b/activerecord/lib/active_record/tasks/database_tasks.rb
index b7315ed4b3..72e0cf3723 100644
--- a/activerecord/lib/active_record/tasks/database_tasks.rb
+++ b/activerecord/lib/active_record/tasks/database_tasks.rb
@@ -127,6 +127,16 @@ module ActiveRecord
}
end
+ def migrate
+ verbose = ENV["VERBOSE"] ? ENV["VERBOSE"] == "true" : true
+ version = ENV["VERSION"] ? ENV["VERSION"].to_i : nil
+ scope = ENV['SCOPE']
+ Migration.verbose = verbose
+ Migrator.migrate(Migrator.migrations_paths, version) do |migration|
+ scope.blank? || scope == migration.scope
+ end
+ end
+
def charset_current(environment = env)
charset ActiveRecord::Base.configurations[environment]
end
diff --git a/activerecord/test/cases/tasks/database_tasks_test.rb b/activerecord/test/cases/tasks/database_tasks_test.rb
index 0f48c8d5fc..01d373b691 100644
--- a/activerecord/test/cases/tasks/database_tasks_test.rb
+++ b/activerecord/test/cases/tasks/database_tasks_test.rb
@@ -273,6 +273,19 @@ module ActiveRecord
end
end
+ class DatabaseTasksMigrateTest < ActiveRecord::TestCase
+ def test_migrate_receives_correct_env_vars
+ verbose, version = ENV['VERBOSE'], ENV['VERSION']
+
+ ENV['VERBOSE'] = 'false'
+ ENV['VERSION'] = '4'
+
+ ActiveRecord::Migrator.expects(:migrate).with(ActiveRecord::Migrator.migrations_paths, 4)
+ ActiveRecord::Tasks::DatabaseTasks.migrate
+ ensure
+ ENV['VERBOSE'], ENV['VERSION'] = verbose, version
+ end
+ end
class DatabaseTasksPurgeTest < ActiveRecord::TestCase
include DatabaseTasksSetupper