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The default is if you are sure your model should always point towards the swapped-in model – for example, if it is a profile model designed specifically for your custom user model.If in doubt, leave it to its default of , but the reverse side of the relation will directly return a single object.
Since some databases don’t support table names above a certain length, these table names will be automatically truncated to 64 characters and a uniqueness hash will be used.The first element in each tuple is the actual value to be set on the model, and the second element is the human-readable name. The default cannot be a mutable object (model instance, list, set, etc.), as a reference to the same instance of that object would be used as the default value in all new model instances., this field is the primary key for the model. Boolean flag that indicates if the field has a database column associated with it.If you don’t specify primary_key=True for any field in your model, Django will automatically add an Auto Field to hold the primary key, so you don’t need to set primary_key=True on any of your fields unless you want to override the default primary-key behavior. Boolean flag that indicates if a field is used to back another non-hidden field’s functionality (e.g.This means you might see table names like option to specify the Django model that represents the intermediate table that you want to use.The most common use for this option is when you want to associate extra data with a many-to-many relationship.
Django will normally determine which fields of the intermediary model to use in order to establish a many-to-many relationship automatically.