search for: class_of_active_record_descend

I have a polymorphic thingy called fields and I need to on each and every model, so I''d like to do the has_many from the base class, like this... ActiveRecord::Base.class_eval do has_many :fields, :as => :model, :dependent => true end It fails with this no method error (class_of_active_record_descendant) /usr/lib/ruby/gems/1.8/gems/activerecord-1.15.6/lib/active_record/ base.rb:1369:in `class_of_active_record_descendant'':NoMethodError: undefined method `abstract_class?'' for Object:Class Is there a better way to do this??? --~--~---------~--~----~------------~-------~--~---...

...utomaically add these to EVERY model ? I tried the following but it fails with an error... ActiveRecord::Base.class_eval do has_many :notes, :as => :model_with_notes, :dependent => true end fails with.... /usr/lib/ruby/gems/1.8/gems/activerecord-1.15.6/lib/active_record/ base.rb:1369:in `class_of_active_record_descendant'':NoMethodError: undefined method `abstract_class?'' for Object:Class --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyon...

...lizer/active_record_patch.rb: class ActiveRecord::Base def inactive update_attribute(:available, false) end default_scope :available => true end Getting following error when add the default_scope */gems/ruby-1.9.2-p290/gems/activerecord-3.0.9/lib/active_record/base.rb:1212:in class_of_active_record_descendant'': undefined methodabstract_class?'' for Object:Class (NoMethodError)* -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@pu...

Hi! I got a class named EinsatzFilter which I serialized to session. Before saving to session it works afterwards I keep getting the message: "undefined method `to_s'' for #<Person:0x38c6ab8>". "Person" is a from ActiveRecord::Base inherited class. Code: class EinsatzFilter include ApplicationHelper attr_reader :personen, :monat, :projekte, :kunde

I want to create an internal admin view to display the output of "show variables" from mysql. What''s the best approach do this? For example, I''m doing something like this: @variables = ActiveRecord::Base.find_by_sql "show variables;" Then, I get stuff like this back (227 elements in @variables) in script/console: >> @variables[0] =>