This can be useful for creating nested representations, or for fields which require access to the complete object in order to determine the output representation. A list of validator functions which should be applied to the incoming field input, and which either raise a validation error or simply return.Validator functions should typically raise is also supported for compatibility with validators defined in the Django codebase or third party Django packages. A short text string that may be used as the name of the field in HTML form fields or other descriptive elements.Django Forms take a lot of the work out of all these steps, by providing a framework that lets you define forms and their fields programmatically, and then use these objects to both generate the form HTML code and handle much of the validation and user interaction.In this tutorial we're going to show you a few of the ways you can create and work with forms, and in particular, how the generic editing form views can significantly reduce the amount of work you need to do to create forms to manipulate your models.May be set to a function or other callable, in which case the value will be evaluated each time it is used.
This callable must be able to accept two arguments, and return a Unix-style path (with forward slashes) to be passed along to the storage system.
Luckily, Django internally just takes the list of validators you provided, adds that to a list of default validators and then iterates over it.
If an exception is raised, it will be added to a list of errors and then it’s the next validator’s turn: # django.forms.fields.
If set, this gives the default value that will be used for the field if no input value is supplied.
If not set the default behavior is to not populate the attribute at all.