class Mongoid::Association::Embedded::EmbeddedIn::Binding

The Binding object for embedded_in associations.

Public Instance Methods

bind_one() click to toggle source

Binds the base object to the inverse of the association. This is so we are referenced to the actual objects themselves on both sides.

This case sets the association metadata on the inverse object as well as the document itself.

@example Bind the documents.

name.person.bind(:continue => true)
name.person = Person.new
# File lib/mongoid/association/embedded/embedded_in/binding.rb, line 22
def bind_one
  binding do
    check_polymorphic_inverses!(_target)
    _base._association = _association.inverse_association(_target) unless _base._association
    _base.parentize(_target)
    if _base.embedded_many?
      _target.send(_association.inverse(_target)).push(_base)
    else
      remove_associated(_target)
      try_method(_target, _association.inverse_setter(_target), _base)
    end
  end
end
unbind_one() click to toggle source

Unbinds the base object and the inverse, caused by setting the reference to nil.

@example Unbind the document.

name.person.unbind(:continue => true)
name.person = nil
# File lib/mongoid/association/embedded/embedded_in/binding.rb, line 42
def unbind_one
  binding do
    if _base.embedded_many?
      _target.send(_association.inverse(_target)).delete(_base)
    else
      try_method(_target, _association.inverse_setter(_target), nil)
    end
  end
end

Private Instance Methods

check_polymorphic_inverses!(doc) click to toggle source

Check for problems with multiple inverse definitions.

@api private

@example Check for inverses errors.

binding.check_inverses!(doc)

@param [ Document ] doc The document to check.

# File lib/mongoid/association/embedded/embedded_in/binding.rb, line 62
def check_polymorphic_inverses!(doc)
  if inverses = _association.inverses(doc)
    if inverses.length > 1
      raise Errors::InvalidSetPolymorphicRelation.new(
          _association.name, _base.class.name, _target.class.name
      )
    end
  end
end