Method: Mongoid::Relations::Accessors::ClassMethods#setter

Defined in:
lib/mongoid/relations/accessors.rb

#setter(name, metadata) ⇒ Class

Defines the setter for the relation. This does a few things based on some conditions. If there is an existing association, a target substitution will take place, otherwise a new relation will be created with the supplied target.

Examples:

Set up the setter for the relation.

Person.setter("addresses", metadata)

Since:

  • 2.0.0.rc.1



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# File 'lib/mongoid/relations/accessors.rb', line 261

def setter(name, metadata)
  re_define_method("#{name}=") do |object|
    without_autobuild do
      if metadata.many?
        set_relation(name, get_relation(name, metadata).substitute(object.substitutable))
      elsif value = get_relation_for_set(name, metadata, object)
        set_relation(name, value.substitute(object.substitutable))
      else
        __build__(name, object.substitutable, metadata)
      end
    end
  end
  self
end