| Module | Sequel::Plugins::AssociationDependencies::ClassMethods | 
| In: | lib/sequel/plugins/association_dependencies.rb | 
| association_dependencies | [R] | A hash specifying the association dependencies for each model. The keys are symbols indicating the type of action and when it should be executed (e.g. :before_delete). Values are an array of method symbols. For before_nullify, the symbols are remove_all_association methods. For other types, the symbols are association_dataset methods, on which delete or destroy is called. | 
Add association dependencies to this model. The hash should have association name symbol keys and dependency action symbol values (e.g. :albums=>:destroy).
    # File lib/sequel/plugins/association_dependencies.rb, line 52
52:         def add_association_dependencies(hash)
53:           hash.each do |association, action|
54:             raise(Error, "Nonexistent association: #{association}") unless r = association_reflection(association)
55:             raise(Error, "Invalid dependence action type: association: #{association}, dependence action: #{action}") unless DEPENDENCE_ACTIONS.include?(action)
56:             raise(Error, "Invalid association type: association: #{association}, type: #{r[:type]}") unless time = ASSOCIATION_MAPPING[r[:type]]
57:             association_dependencies["#{time}_#{action}""#{time}_#{action}"] << if action == :nullify
58:               raise(Error, "Can't nullify many_to_one associated objects: association: #{association}") if r[:type] == :many_to_one
59:               r.remove_all_method
60:             else
61:               raise(Error, "Can only nullify many_to_many associations: association: #{association}") if r[:type] == :many_to_many
62:               r.dataset_method
63:             end
64:           end
65:         end
          Copy the current model object‘s association_dependencies into the subclass.
    # File lib/sequel/plugins/association_dependencies.rb, line 68
68:         def inherited(subclass)
69:           super
70:           ad = association_dependencies.dup
71:           ad.keys.each{|k| ad[k] = ad[k].dup}
72:           subclass.instance_variable_set(:@association_dependencies, ad)
73:         end