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-rw-r--r--activerecord/lib/active_record/reflection.rb71
1 files changed, 18 insertions, 53 deletions
diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb
index 49ddcaecdf..889e24dd1a 100644
--- a/activerecord/lib/active_record/reflection.rb
+++ b/activerecord/lib/active_record/reflection.rb
@@ -138,7 +138,7 @@ module ActiveRecord
# HasAndBelongsToManyReflection
# ThroughReflection
# PolymorphicReflection
- # RuntimeReflection
+ # RuntimeReflection
class AbstractReflection # :nodoc:
def through_reflection?
false
@@ -154,14 +154,6 @@ module ActiveRecord
klass.new(attributes, &block)
end
- def quoted_table_name
- klass.quoted_table_name
- end
-
- def primary_key_type
- klass.type_for_attribute(klass.primary_key)
- end
-
# Returns the class name for the macro.
#
# <tt>composed_of :balance, class_name: 'Money'</tt> returns <tt>'Money'</tt>
@@ -373,6 +365,17 @@ module ActiveRecord
#
# <tt>composed_of :balance, class_name: 'Money'</tt> returns the Money class
# <tt>has_many :clients</tt> returns the Client class
+ #
+ # class Company < ActiveRecord::Base
+ # has_many :clients
+ # end
+ #
+ # Company.reflect_on_association(:clients).klass
+ # # => Client
+ #
+ # <b>Note:</b> Do not call +klass.new+ or +klass.create+ to instantiate
+ # a new association object. Use +build_association+ or +create_association+
+ # instead. This allows plugins to hook into association object creation.
def klass
@klass ||= compute_class(class_name)
end
@@ -413,22 +416,6 @@ module ActiveRecord
# Holds all the metadata about an association as it was specified in the
# Active Record class.
class AssociationReflection < MacroReflection #:nodoc:
- # Returns the target association's class.
- #
- # class Author < ActiveRecord::Base
- # has_many :books
- # end
- #
- # Author.reflect_on_association(:books).klass
- # # => Book
- #
- # <b>Note:</b> Do not call +klass.new+ or +klass.create+ to instantiate
- # a new association object. Use +build_association+ or +create_association+
- # instead. This allows plugins to hook into association object creation.
- def klass
- @klass ||= compute_class(class_name)
- end
-
def compute_class(name)
active_record.send(:compute_type, name)
end
@@ -1029,6 +1016,8 @@ module ActiveRecord
end
class PolymorphicReflection < AbstractReflection # :nodoc:
+ delegate :klass, :scope, :plural_name, :type, :get_join_keys, to: :@reflection
+
def initialize(reflection, previous_reflection)
@reflection = reflection
@previous_reflection = previous_reflection
@@ -1044,30 +1033,10 @@ module ActiveRecord
scopes << @previous_reflection.source_type_scope
end
- def klass
- @reflection.klass
- end
-
- def scope
- @reflection.scope
- end
-
- def plural_name
- @reflection.plural_name
- end
-
- def type
- @reflection.type
- end
-
def constraints
@reflection.constraints + [source_type_info]
end
- def get_join_keys(association_klass)
- @reflection.get_join_keys(association_klass)
- end
-
private
def source_type_info
type = @previous_reflection.foreign_type
@@ -1076,8 +1045,8 @@ module ActiveRecord
end
end
- class RuntimeReflection < PolymorphicReflection # :nodoc:
- attr_accessor :next
+ class RuntimeReflection < AbstractReflection # :nodoc:
+ delegate :scope, :type, :constraints, :get_join_keys, to: :@reflection
def initialize(reflection, association)
@reflection = reflection
@@ -1088,12 +1057,8 @@ module ActiveRecord
@association.klass
end
- def constraints
- @reflection.constraints
- end
-
- def alias_name
- Arel::Table.new(table_name, type_caster: klass.type_caster)
+ def aliased_table
+ @aliased_table ||= Arel::Table.new(table_name, type_caster: klass.type_caster)
end
def all_includes; yield; end