APIActive

Django Forms API

Django's forms API for binding data, validating input, and rendering forms as HTML.

Field note

What it does

Covers bound and unbound Form instances, validation via is_valid() and errors, BoundField output, and HTML rendering styles.

Capabilities

Available capabilities

Widget rendering configuration Structured Error Handling HTML form rendering File Upload Data Validation Custom validation logic Form data validation

Bound and unbound forms

Form instances are either bound to data or unbound; is_bound distinguishes them at runtime.

BoundField

Access form fields and their attributes and methods for granular output control.

Cast ¶

clean()

Implement clean() on a Form to add custom validation for interdependent fields.

Coalesce ¶

Collate ¶

Comparison and conversion functions ¶

Database Functions ¶

Date functions ¶

DateField extracts ¶

DateTimeField extracts ¶

errors

Dictionary of field names to lists of error messages; also supports as_data() and as_json().

Extract ¶

Greatest ¶

is_valid()

Runs validation on a bound form and returns a boolean indicating whether the data is valid.

Least ¶

NullIf ¶

Output styles

Render forms via as_div(), as_p(), as_ul(), and as_table().