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Module: Mongoid::Association::Referenced::AutoSave

Relationships & Source Files
Extension / Inclusion / Inheritance Descendants
Included In:
::Mongoid::Association, ::Mongoid::Composable, ::Mongoid::Document, ::Mongoid::GlobalDiscriminatorKeyAssignment::InvalidFieldHost
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, ActiveSupport::Concern
Defined in: lib/mongoid/association/referenced/auto_save.rb

Overview

Mixin module included into ::Mongoid::Document which adds the ability to automatically save opposite-side documents in referenced associations when saving the subject document.

Class Method Summary

Instance Attribute Summary

Instance Method Summary

Class Method Details

.define_autosave!(association) ⇒ Class

Define the autosave method on an association’s owning class for an associated object.

Examples:

Define the autosave method:

Association::Referenced::Autosave.define_autosave!(association)

Parameters:

Returns:

  • (Class) —

    The association’s owner class.

[ GitHub ] 

  


# File 'lib/mongoid/association/referenced/auto_save.rb', line 53



def self.define_autosave!(association)
  association.inverse_class.tap do |klass|
    save_method = :"autosave_documents_for_#{association.name}"
    klass.send(:define_method, save_method) do
      if before_callback_halted?
        self.before_callback_halted = false
      else
        __autosaving__ do
          if assoc_value = ivar(association.name)
            Array(assoc_value).each do |doc|
              pc = doc.persistence_context? ? doc.persistence_context : persistence_context.for_child(doc)
              doc.with(pc) do |d|
                d.save
              end
            end
          end
        end
      end
    end
    klass.after_persist_parent save_method, unless: :autosaved?
  end
end


  







Instance Attribute Details



  

    #autosaved?  ⇒ true | false  (readonly)
  



  

    

Used to prevent infinite loops in associated autosaves.


  





    

    
Examples:

        


Is the document autosaved?



      
document.autosaved?

  


Returns:


    
  
  • 
    (true | false)
—    
    

    Has the document already been autosaved?
    

    
  
    • 





  [ GitHub ]


  

  


# File 'lib/mongoid/association/referenced/auto_save.rb', line 20



def autosaved?
  Threaded.autosaved?(self)
end


  







Instance Method Details



  

    #__autosaving__  
  



  

    

Begin the associated autosave.


  





    

    
Examples:

        


Begin autosave.



      
document.__autosaving__

  




  [ GitHub ]


  

  


# File 'lib/mongoid/association/referenced/auto_save.rb', line 28



def __autosaving__
  Threaded.begin_autosave(self)
  yield
ensure
  Threaded.exit_autosave(self)
end


  








  

    #changed_for_autosave?(doc)  ⇒ Boolean 
  



  

    

Check if there is changes for auto-saving



document.changed_for_autosave?


  





    

    
Examples:

        


Return true if there is changes on self or in



      
autosaved associations.

  




  [ GitHub ]


  

  


# File 'lib/mongoid/association/referenced/auto_save.rb', line 40



def changed_for_autosave?(doc)
  doc.new_record? || doc.changed? || doc.marked_for_destruction?
end