Hi, I was trying to create an abstract class and a subclass which inherit that abstract class.
However, seems like I cannot instantiate the subclass too. Below is my code:
//abstractclass2.rb class Abstractclass2 < ActiveRecord::Base self.abstract_class = true end
//subclass.rb class Subclass < Abstractclass2 end
When I test drive it in rails console, I got the following error:
from (irb):1irb(main):002:0> sb = Subclass.new ActiveRecord::StatementInvalid: Could not find table 'subclasses' from /usr/lib/ruby/gems/1.8/gems/activerecord-3.1.3/lib/active_record/connection_adapters/sqlite_adapter.rb:439:in `table_structure' from /usr/lib/ruby/gems/1.8/gems/activerecord-3.1.3/lib/active_record/connection_adapters/sqlite_adapter.rb:322:in `columns'
If I take out "self.abstract_class", everything works fine (subclass object is inserted into abstractclass table but abstractclass can be instantiated --> that's not what I want to...)
Did I miss something here so that I cannot instantiate the subclass?