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Module: ActiveRecord::AttributeMethods::PrimaryKey

Relationships & Source Files
Namespace Children
Modules:
ClassMethods
Extension / Inclusion / Inheritance Descendants
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, ::ActiveSupport::Concern
Defined in: activerecord/lib/active_record/attribute_methods/primary_key.rb

Class Method Summary

::ActiveSupport::Concern - Extended

append_features, class_methods, included

Instance Attribute Summary

Instance Method Summary

Instance Attribute Details

#id (rw)

Returns the primary key value.

[ GitHub ] 

  


# File 'activerecord/lib/active_record/attribute_methods/primary_key.rb', line 18



def id
  sync_with_transaction_state
  primary_key = self.class.primary_key
  _read_attribute(primary_key) if primary_key
end


  








  

    #id=(value)   (rw)
  



  

    

Sets the primary key value.


  



  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/attribute_methods/primary_key.rb', line 25



def id=(value)
  sync_with_transaction_state
  primary_key = self.class.primary_key
  _write_attribute(primary_key, value) if primary_key
end


  








  

    #id?  ⇒ Boolean  (rw)
  



  

    

Queries the primary key value.


  





  


  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/attribute_methods/primary_key.rb', line 32



def id?
  sync_with_transaction_state
  query_attribute(self.class.primary_key)
end


  







Instance Method Details



  

    #id_before_type_cast  
  



  

    

Returns the primary key value before type cast.


  



  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/attribute_methods/primary_key.rb', line 38



def id_before_type_cast
  sync_with_transaction_state
  read_attribute_before_type_cast(self.class.primary_key)
end


  








  

    #id_in_database  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/attribute_methods/primary_key.rb', line 49



def id_in_database
  sync_with_transaction_state
  attribute_in_database(self.class.primary_key)
end


  








  

    #id_was  
  



  

    

Returns the primary key previous value.


  



  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/attribute_methods/primary_key.rb', line 44



def id_was
  sync_with_transaction_state
  attribute_was(self.class.primary_key)
end


  








  

    #to_key  
  



  

    

Returns this record’s primary key value wrapped in an array if one is available.


  



  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/attribute_methods/primary_key.rb', line 12



def to_key
  key = id
  [key] if key
end