Hi,
I have a Modul model and a Role model. Each modul can have many roles. So when the modul is deleted, it should delete the roles also. I have the following in my Modul model:
has_many :roles, :dependent => :destroy
When i run some_object.destroy from the console, i get the following error:
ActiveRecord::StatementInvalid: Mysql::Error: Unknown column 'id' in 'where clause': DELETE FROM `roles` WHERE `id` = NULL from C:/rubyonrails/ruby/lib/ruby/gems/1.8/gems/ activerecord-2.3.3/lib/active_record/connection_adapters/abstract_ada pter.rb:212:in `log' from C:/rubyonrails/ruby/lib/ruby/gems/1.8/gems/ activerecord-2.3.3/lib/active_record/connection_adapters/mysql_adapte r.rb:320:in `execute' from C:/rubyonrails/ruby/lib/ruby/gems/1.8/gems/ activerecord-2.3.3/lib/active_record/connection_adapters/abstract/dat abase_statements.rb:265:in `update_sql' from C:/rubyonrails/ruby/lib/ruby/gems/1.8/gems/ activerecord-2.3.3/lib/active_record/connection_adapters/mysql_adapte r.rb:335:in `update_sql' from C:/rubyonrails/ruby/lib/ruby/gems/1.8/gems/ activerecord-2.3.3/lib/active_record/connection_adapters/abstract/dat
Does anyone have any idea?
Thanks, Pratik