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  1. Why would I create a recursive relationship?
  2. Is it like the above? 
     class a class (models.model): eiffel = model.   
     
     
       
    1.  
       When you use the same model structure, If the father and child want to node, you may need to make a recurring relationship. For example, if you have any comments with text, data and user_id:  
        class comment (models.model): text = models.TextField () create_date_time = models.DateTimeField () parent_comment = Models.ForeignKey ('self')    
    2.  
       I think yes (you can try testing it), but this is not a good form If you change the name of a class, then you have to change the string value in the brackets. If you use 'self' then you do not do this headache.

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