Contents

module ActiveRecordDescendantAttributeAccessors

  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

end

Version data entries

16 entries across 16 versions & 1 rubygems

Version	Path
purgatory-6.0.3	lib/purgatory/active_record_descendant_attribute_accessors.rb
purgatory-6.0.2	lib/purgatory/active_record_descendant_attribute_accessors.rb
purgatory-6.0.1	lib/purgatory/active_record_descendant_attribute_accessors.rb
purgatory-6.0.0	lib/purgatory/active_record_descendant_attribute_accessors.rb
purgatory-4.0.0	lib/purgatory/active_record_descendant_attribute_accessors.rb
purgatory-3.1.2	lib/purgatory/active_record_descendant_attribute_accessors.rb
purgatory-3.1.1	lib/purgatory/active_record_descendant_attribute_accessors.rb
purgatory-3.1.0	lib/purgatory/active_record_descendant_attribute_accessors.rb
purgatory-3.0.0	lib/purgatory/active_record_descendant_attribute_accessors.rb
purgatory-2.14.0	lib/purgatory/active_record_descendant_attribute_accessors.rb
purgatory-2.13.0	lib/purgatory/active_record_descendant_attribute_accessors.rb
purgatory-2.12.0	lib/purgatory/active_record_descendant_attribute_accessors.rb
purgatory-2.11.0	lib/purgatory/active_record_descendant_attribute_accessors.rb
purgatory-2.10.0	lib/purgatory/active_record_descendant_attribute_accessors.rb
purgatory-2.9.0	lib/purgatory/active_record_descendant_attribute_accessors.rb
purgatory-2.8.0	lib/purgatory/active_record_descendant_attribute_accessors.rb