activerecord - Rails: Belongs_to Polymorphic Association + conditions -

activerecord - Rails: Belongs_to Polymorphic Association + conditions -

so have model:

class model < activerecord::base attr_accessible :to_id, :to_type belongs_to :to, polymorphic: true end

i wondering if add together relationship when belongs_to on specific type:

class model < activerecord::base attr_accessible :to_id, :to_type belongs_to :to, polymorphic: true belongs_to :to_user, :foreign_key => :to_id, :conditions => ['to_type = ?', 'user'] # doesn't work # or maybe belongs_to :to_user, :foreign_key => :to_id, :foreign_class => 'user' # doesn't check on model's to_type... end

so my_model.to_user homecoming user if exists, , nil if unset or of different class.

using rails 3.2

thanks!

you can utilize status within

belongs_to :to_user,-> {where(:to_type=> 'user')}, :foreign_key => :to_id

form more have on association callbacks

ruby-on-rails-3 activerecord relationships