Reference Form fields

classIntegerField(**kwargs)[source] : - Default widget: NumberInput when Field.localize is False, else TextInput. - Empty value: None - Normalizes to: A Python integer. - Validates that the given value is an integer.

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Reference Form fields

classRegexField(**kwargs)[source] : - Default widget: TextInput - Empty value: Whatever you’ve given as empty_value. - Normalizes to: A string. - Uses RegexValidator to validate that the given value matches a certain regular expression. - Error message keys: required, invalid

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Reference Form fields

classTypedChoiceField(**kwargs)[source] : Just like a ChoiceField, except TypedChoiceField takes two extra arguments, coerce and empty_value.

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Reference Form fields Built-in Field classes

classCharField(**kwargs)[source] : - Default widget: TextInput - Empty value: Whatever you’ve given as empty_value. - Normalizes to: A string. - Uses MaxLengthValidator and MinLengthValidator if max_length and min_length are provided. Otherwise, all inputs are valid.

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Reference Form fields Built-in Field classes

classIntegerField(**kwargs)[source] : - Default widget: NumberInput when Field.localize is False, else TextInput. - Empty value: None - Normalizes to: A Python integer. - Validates that the given value is an integer.

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Reference Form fields Built-in Field classes

classRegexField(**kwargs)[source] : - Default widget: TextInput - Empty value: Whatever you’ve given as empty_value. - Normalizes to: A string. - Uses RegexValidator to validate that the given value matches a certain regular expression. - Error message keys: required, invalid

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Reference Form fields Built-in Field classes

classTypedChoiceField(**kwargs)[source] : Just like a ChoiceField, except TypedChoiceField takes two extra arguments, coerce and empty_value.

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Reference Form fields

Field.error_messages The error_messages argument lets you override the default messages that the field will raise. Pass in a dictionary with keys matching the error messages you want to override.

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Reference Form fields

classNullBooleanField(**kwargs)[source] : - Default widget: NullBooleanSelect - Empty value: None - Normalizes to: A Python True, False or None value. - Validates nothing (i.e., it never raises a ValidationError).

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Reference Form fields

classComboField(**kwargs)[source] : - Default widget: TextInput - Empty value: '' (an empty string) - Normalizes to: A string. - Validates the given value against each of the fields specified as an argument to the ComboField.

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Reference Form fields Core field arguments

Field.error_messages The error_messages argument lets you override the default messages that the field will raise. Pass in a dictionary with keys matching the error messages you want to override.

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Reference Form fields Slightly complex built-in Field classes

classComboField(**kwargs)[source] : - Default widget: TextInput - Empty value: '' (an empty string) - Normalizes to: A string. - Validates the given value against each of the fields specified as an argument to the ComboField.

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Reference Form fields

classMultiValueField(fields=(),**kwargs)[source] : - Default widget: TextInput - Empty value: '' (an empty string) - Normalizes to: the type returned by the compress method of the subclass.

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Reference Form fields Slightly complex built-in Field classes

classMultiValueField(fields=(),**kwargs)[source] : - Default widget: TextInput - Empty value: '' (an empty string) - Normalizes to: the type returned by the compress method of the subclass.

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Reference Form fields

classJSONField(encoder=None,decoder=None,**kwargs)[source] : A field which accepts JSON encoded data for a JSONField.

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Reference Form fields Built-in Field classes

classJSONField(encoder=None,decoder=None,**kwargs)[source] : A field which accepts JSON encoded data for a JSONField.

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Topic guide Formsets Formset validation

You may have noticed the additional data (form-TOTAL_FORMS, form-INITIAL_FORMS) that was required in the formset’s data above. This data is required for the ManagementForm.

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Topic guide Formsets Formset validation

The error_messages argument lets you override the default messages that the formset will raise. Pass in a dictionary with keys matching the error messages you want to override. Error message keys include 'too_few_forms', 'too_many_forms', and 'missing_management_form'.

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Release notes Django 3.2.19 release notes

Uploading multiple files using one form field has never been supported by forms.FileField or forms.ImageField as only the last uploaded file was validated. Unfortunately, Uploading multiple files topic suggested otherwise.

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Release notes Django 4.1.9 release notes

Uploading multiple files using one form field has never been supported by forms.FileField or forms.ImageField as only the last uploaded file was validated. Unfortunately, Uploading multiple files topic suggested otherwise.

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