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Module: ActiveRecord::AttributeMethods::Write

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

Class Method Summary

::ActiveSupport::Concern - Extended

class_methods

Define class methods from given block.
included

Evaluate given block in context of base class, so that you can write class macros here.
prepended

Evaluate given block in context of base class, so that you can write class macros here.
append_features, prepend_features

Instance Method Summary

DSL Calls

included

[ GitHub ] 


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# File 'activerecord/lib/active_record/attribute_methods/write.rb', line 9

included do
  attribute_method_suffix "=", parameters: "value"
end

Instance Method Details

#_write_attribute(attr_name, value) Also known as: #attribute=

This method is for internal use only.

This method exists to avoid the expensive primary_key check internally, without breaking compatibility with the write_attribute API

[ GitHub ] 

  


# File 'activerecord/lib/active_record/attribute_methods/write.rb', line 41



def _write_attribute(attr_name, value) # :nodoc:
  @attributes.write_from_user(attr_name, value)
end


  








  

    #attribute=(attr_name, value)   (private)
  



  

    

Alias for #_write_attribute.


  



  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/attribute_methods/write.rb', line 45



alias :attribute= :_write_attribute


  








  

    #write_attribute(attr_name, value)  
  



  

    

Updates the attribute identified by attr_name using the specified value. The attribute value will be type cast upon being read.


  



  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/attribute_methods/write.rb', line 31



def write_attribute(attr_name, value)
  name = attr_name.to_s
  name = self.class.attribute_aliases[name] || name

  name = @primary_key if name == "id" && @primary_key
  @attributes.write_from_user(name, value)
end