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Mongoid::Relations::Bindings::Referenced::In

Binding class for all referenced_in relations.

Public Instance Methods

bind_one() click to toggle source

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

# File lib/mongoid/relations/bindings/referenced/in.rb, line 20
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
        bind_inverse_of_field(base, base.metadata_name)
        if base.referenced_many?
          target.__send__(inverse).push(base) unless Mongoid.using_identity_map?
        else
          target.do_or_do_not(metadata.inverse_setter(target), base)
        end
      end
    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.

game.person.unbind(:continue => true)
game.person = nil

@since 2.0.0.rc.1

# File lib/mongoid/relations/bindings/referenced/in.rb, line 46
def unbind_one
  binding do
    inverse = metadata.inverse(target)
    if !inverse && metadata.inverse_of_field
      inverse = base.__send__(metadata.inverse_of_field)
    end
    bind_foreign_key(base, nil)
    bind_polymorphic_inverse_type(base, nil)
    bind_inverse_of_field(base, nil)
    if inverse
      set_base_metadata
      if base.referenced_many?
        target.__send__(inverse).delete(base)
      else
        target.__send__("#{inverse}=", nil)
      end
    end
  end
end

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