module ActiveRecordDescendantAttributeAccessors
Public Class Methods
attr_accessor_instance_variables(obj)
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# File lib/purgatory/active_record_descendant_attribute_accessors.rb, line 3 def self.attr_accessor_instance_variables(obj) include_ancestor_methods = false ancestors_before_active_record_base = obj.class.ancestors.take_while { |klass| klass != ActiveRecord::Base } instance_methods_of_ancestors_before_active_record_base = ancestors_before_active_record_base .map { |klass| klass.instance_methods(include_ancestor_methods) } .flatten setter_methods_of_ancestors_before_active_record_base = instance_methods_of_ancestors_before_active_record_base .select { |meth| meth.to_s.last == '=' } possible_instance_variables_from_setter_methods = setter_methods_of_ancestors_before_active_record_base .map { |meth| meth.to_s.prepend('@').chop.to_sym } obj.instance_variables & possible_instance_variables_from_setter_methods end