method
    
    primary_key_column
 
  
      v4.1.8 - 
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    Class: ActiveRecord::Reflection::AssociationReflection
    
  
  
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primary_key_column()
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# File activerecord/lib/active_record/reflection.rb, line 262 def primary_key_column klass.columns_hash[klass.primary_key] end

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