/ Ruby on Rails
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method

primary_key

rails latest stable - Class: ActiveRecord::Reflection::AssociationReflection

Method deprecated or moved

This method is deprecated or moved on the latest stable version. The last existing version (v5.1.7) is shown here.

primary_key(klass)
private

No documentation available.

# File activerecord/lib/active_record/reflection.rb, line 684
        def primary_key(klass)
          klass.primary_key || raise(UnknownPrimaryKey.new(klass))
        end