class Trunc(expression, kind, output_field=None, tzinfo=None, **extra) [source] Truncates

Field.hidden Boolean flag that indicates if a field is used to back another non-hidden field’s functionality (e.g. the

FileField.upload_to This attribute provides a way of setting the upload directory and file name, and can be set in two ways

get_source_expressions() Returns an ordered list of inner expressions. For example:

Field.db_index If True, a database index will be created for this field.

aggregate(*args, **kwargs) Returns a dictionary of aggregate values (averages, sums, etc.) calculated over the QuerySet

desc() Returns the expression ready to be sorted in descending order.

FieldFile.url A read-only property to access the file’s relative URL by calling the

class FloatField(**options) [source] A floating-point number represented in Python by a float

convert_value(self, value, expression, connection, context) A hook allowing the expression to coerce value into