lib/mongoid/relations/bindings/referenced/in.rb
# encoding: utf-8
module Mongoid
module Relations
module Bindings
module Referenced
# Binding class for all referenced_in relations.
class In < Binding
# Binds the base object to the inverse of the relation. This is so we
# are referenced to the actual objects themselves on both sides.
#
# This case sets the metadata on the inverse object as well as the
# document itself.
#
# @example Bind the documents.
# game.person.bind(:continue => true)
# game.person = Person.new
#
# @since 2.0.0.rc.1
def bind_one
binding do
check_inverses!(target)
bind_foreign_key(base, record_id(target))
bind_polymorphic_inverse_type(base, target.class.name)
if inverse = metadata.inverse(target)
if set_base_metadata
if base.referenced_many?
target.__send__(inverse).push(base)
else
target.set_relation(inverse, base)
end
end
end
end
end
# Unbinds the base object and the inverse, caused by setting the
# reference to nil.
#
# @example Unbind the document.
# game.person.unbind(:continue => true)
# game.person = nil
#
# @since 2.0.0.rc.1
def unbind_one
binding do
inverse = metadata.inverse(target)
bind_foreign_key(base, nil)
bind_polymorphic_inverse_type(base, nil)
if inverse
set_base_metadata
if base.referenced_many?
target.__send__(inverse).delete(base)
else
target.set_relation(inverse, nil)
end
end
end
end
end
end
end
end
end