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Fixed #29646 -- Doc'd the validators that each model and form field uses.

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Jeff 2018-08-16 17:03:28 -04:00 committed by Tim Graham
parent b523d42561
commit 3fa3de5415
2 changed files with 61 additions and 26 deletions
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47
docs/ref/forms/fields.txt
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@ -367,8 +367,9 @@ For each field, we describe the default widget used if you don't specify
* Default widget: :class:`TextInput` * Default widget: :class:`TextInput`
* Empty value: Whatever you've given as :attr:`empty_value`. * Empty value: Whatever you've given as :attr:`empty_value`.
* Normalizes to: A string. * Normalizes to: A string.
* Validates ``max_length`` or ``min_length``, if they are provided. * Uses :class:`~django.core.validators.MaxLengthValidator` and
Otherwise, all inputs are valid. :class:`~django.core.validators.MinLengthValidator` if ``max_length`` and
``min_length`` are provided. Otherwise, all inputs are valid.
* Error message keys: ``required``, ``max_length``, ``min_length`` * Error message keys: ``required``, ``max_length``, ``min_length``
Has three optional arguments for validation: Has three optional arguments for validation:
@ -528,8 +529,10 @@ For each field, we describe the default widget used if you don't specify
``False``, else :class:`TextInput`. ``False``, else :class:`TextInput`.
* Empty value: ``None`` * Empty value: ``None``
* Normalizes to: A Python ``decimal``. * Normalizes to: A Python ``decimal``.
* Validates that the given value is a decimal. Leading and trailing * Validates that the given value is a decimal. Uses
whitespace is ignored. :class:`~django.core.validators.MaxValueValidator` and
:class:`~django.core.validators.MinValueValidator` if ``max_value`` and
``min_value`` are provided. Leading and trailing whitespace is ignored.
* Error message keys: ``required``, ``invalid``, ``max_value``, * Error message keys: ``required``, ``invalid``, ``max_value``,
``min_value``, ``max_digits``, ``max_decimal_places``, ``min_value``, ``max_digits``, ``max_decimal_places``,
``max_whole_digits`` ``max_whole_digits``
@ -581,8 +584,9 @@ For each field, we describe the default widget used if you don't specify
* Default widget: :class:`EmailInput` * Default widget: :class:`EmailInput`
* Empty value: ``''`` (an empty string) * Empty value: ``''`` (an empty string)
* Normalizes to: A string. * Normalizes to: A string.
* Validates that the given value is a valid email address, using a * Uses :class:`~django.core.validators.EmailValidator` to validate that
moderately complex regular expression. the given value is a valid email address, using a moderately complex
regular expression.
* Error message keys: ``required``, ``invalid`` * Error message keys: ``required``, ``invalid``
Has two optional arguments for validation, ``max_length`` and ``min_length``. Has two optional arguments for validation, ``max_length`` and ``min_length``.
@ -669,8 +673,11 @@ For each field, we describe the default widget used if you don't specify
``False``, else :class:`TextInput`. ``False``, else :class:`TextInput`.
* Empty value: ``None`` * Empty value: ``None``
* Normalizes to: A Python float. * Normalizes to: A Python float.
* Validates that the given value is a float. Leading and trailing * Validates that the given value is a float. Uses
whitespace is allowed, as in Python's ``float()`` function. :class:`~django.core.validators.MaxValueValidator` and
:class:`~django.core.validators.MinValueValidator` if ``max_value`` and
``min_value`` are provided. Leading and trailing whitespace is allowed,
as in Python's ``float()`` function.
* Error message keys: ``required``, ``invalid``, ``max_value``, * Error message keys: ``required``, ``invalid``, ``max_value``,
``min_value`` ``min_value``
@ -686,8 +693,9 @@ For each field, we describe the default widget used if you don't specify
* Empty value: ``None`` * Empty value: ``None``
* Normalizes to: An ``UploadedFile`` object that wraps the file content * Normalizes to: An ``UploadedFile`` object that wraps the file content
and file name into a single object. and file name into a single object.
* Validates that file data has been bound to the form, and that the * Validates that file data has been bound to the form. Also uses
file is of an image format understood by Pillow. :class:`~django.core.validators.FileExtensionValidator` to validate that
the file extension is supported by Pillow.
* Error message keys: ``required``, ``invalid``, ``missing``, ``empty``, * Error message keys: ``required``, ``invalid``, ``missing``, ``empty``,
``invalid_image`` ``invalid_image``
@ -718,8 +726,11 @@ For each field, we describe the default widget used if you don't specify
``False``, else :class:`TextInput`. ``False``, else :class:`TextInput`.
* Empty value: ``None`` * Empty value: ``None``
* Normalizes to: A Python integer. * Normalizes to: A Python integer.
* Validates that the given value is an integer. Leading and trailing * Validates that the given value is an integer. Uses
whitespace is allowed, as in Python's ``int()`` function. :class:`~django.core.validators.MaxValueValidator` and
:class:`~django.core.validators.MinValueValidator` if ``max_value`` and
``min_value`` are provided. Leading and trailing whitespace is allowed,
as in Python's ``int()`` function.
* Error message keys: ``required``, ``invalid``, ``max_value``, * Error message keys: ``required``, ``invalid``, ``max_value``,
``min_value`` ``min_value``
@ -824,8 +835,8 @@ For each field, we describe the default widget used if you don't specify
* Default widget: :class:`TextInput` * Default widget: :class:`TextInput`
* Empty value: ``''`` (an empty string) * Empty value: ``''`` (an empty string)
* Normalizes to: A string. * Normalizes to: A string.
* Validates that the given value matches against a certain regular * Uses :class:`~django.core.validators.RegexValidator` to validate that
expression. the given value matches a certain regular expression.
* Error message keys: ``required``, ``invalid`` * Error message keys: ``required``, ``invalid``
Takes one required argument: Takes one required argument:
@ -851,8 +862,9 @@ For each field, we describe the default widget used if you don't specify
* Default widget: :class:`TextInput` * Default widget: :class:`TextInput`
* Empty value: ``''`` (an empty string) * Empty value: ``''`` (an empty string)
* Normalizes to: A string. * Normalizes to: A string.
* Validates that the given value contains only letters, numbers, * Uses :class:`~django.core.validators.validate_slug` or
underscores, and hyphens. :class:`~django.core.validators.validate_unicode_slug` to validate that
the given value contains only letters, numbers, underscores, and hyphens.
* Error messages: ``required``, ``invalid`` * Error messages: ``required``, ``invalid``
This field is intended for use in representing a model This field is intended for use in representing a model
@ -897,7 +909,8 @@ For each field, we describe the default widget used if you don't specify
* Default widget: :class:`URLInput` * Default widget: :class:`URLInput`
* Empty value: ``''`` (an empty string) * Empty value: ``''`` (an empty string)
* Normalizes to: A string. * Normalizes to: A string.
* Validates that the given value is a valid URL. * Uses :class:`~django.core.validators.URLValidator` to validate that the
given value is a valid URL.
* Error message keys: ``required``, ``invalid`` * Error message keys: ``required``, ``invalid``
Takes the following optional arguments: Takes the following optional arguments:

40
docs/ref/models/fields.txt
View File

@ -414,7 +414,7 @@ guaranteed to fit numbers from ``-9223372036854775808`` to
``BinaryField`` ``BinaryField``
--------------- ---------------
.. class:: BinaryField(**options) .. class:: BinaryField(max_length=None, **options)
A field to store raw binary data. It only supports ``bytes`` assignment. Be A field to store raw binary data. It only supports ``bytes`` assignment. Be
aware that this field has limited functionality. For example, it is not possible aware that this field has limited functionality. For example, it is not possible
@ -427,6 +427,14 @@ case it can't be included in a :class:`~django.forms.ModelForm`.
Older versions don't allow setting ``editable`` to ``True``. Older versions don't allow setting ``editable`` to ``True``.
``BinaryField`` has one extra optional argument:
.. attribute:: BinaryField.max_length
The maximum length (in characters) of the field. The maximum length is
enforced in Django's validation using
:class:`~django.core.validators.MaxLengthValidator`.
.. admonition:: Abusing ``BinaryField`` .. admonition:: Abusing ``BinaryField``
Although you might think about storing files in the database, consider that Although you might think about storing files in the database, consider that
@ -468,7 +476,8 @@ The default form widget for this field is a :class:`~django.forms.TextInput`.
.. attribute:: CharField.max_length .. attribute:: CharField.max_length
The maximum length (in characters) of the field. The max_length is enforced The maximum length (in characters) of the field. The max_length is enforced
at the database level and in Django's validation. at the database level and in Django's validation using
:class:`~django.core.validators.MaxLengthValidator`.
.. note:: .. note::
@ -551,7 +560,10 @@ The default form widget for this field is a single
.. class:: DecimalField(max_digits=None, decimal_places=None, **options) .. class:: DecimalField(max_digits=None, decimal_places=None, **options)
A fixed-precision decimal number, represented in Python by a A fixed-precision decimal number, represented in Python by a
:class:`~decimal.Decimal` instance. Has two **required** arguments: :class:`~decimal.Decimal` instance. It validates the input using
:class:`~django.core.validators.DecimalValidator`.
Has two **required** arguments:
.. attribute:: DecimalField.max_digits .. attribute:: DecimalField.max_digits
@ -603,8 +615,8 @@ SECOND(6)``. Otherwise a ``bigint`` of microseconds is used.
.. class:: EmailField(max_length=254, **options) .. class:: EmailField(max_length=254, **options)
A :class:`CharField` that checks that the value is a valid email address. It A :class:`CharField` that checks that the value is a valid email address using
uses :class:`~django.core.validators.EmailValidator` to validate the input. :class:`~django.core.validators.EmailValidator`.
``FileField`` ``FileField``
------------- -------------
@ -969,9 +981,15 @@ The default form widget for this field is a
.. class:: IntegerField(**options) .. class:: IntegerField(**options)
An integer. Values from ``-2147483648`` to ``2147483647`` are safe in all An integer. Values from ``-2147483648`` to ``2147483647`` are safe in all
databases supported by Django. The default form widget for this field is a databases supported by Django.
:class:`~django.forms.NumberInput` when :attr:`~django.forms.Field.localize`
is ``False`` or :class:`~django.forms.TextInput` otherwise. It uses :class:`~django.core.validators.MinValueValidator` and
:class:`~django.core.validators.MaxValueValidator` to validate the input based
on the values that the default database supports.
The default form widget for this field is a :class:`~django.forms.NumberInput`
when :attr:`~django.forms.Field.localize` is ``False`` or
:class:`~django.forms.TextInput` otherwise.
``GenericIPAddressField`` ``GenericIPAddressField``
------------------------- -------------------------
@ -1050,6 +1068,9 @@ It is often useful to automatically prepopulate a SlugField based on the value
of some other value. You can do this automatically in the admin using of some other value. You can do this automatically in the admin using
:attr:`~django.contrib.admin.ModelAdmin.prepopulated_fields`. :attr:`~django.contrib.admin.ModelAdmin.prepopulated_fields`.
It uses :class:`~django.core.validators.validate_slug` or
:class:`~django.core.validators.validate_unicode_slug` for validation.
.. attribute:: SlugField.allow_unicode .. attribute:: SlugField.allow_unicode
If ``True``, the field accepts Unicode letters in addition to ASCII If ``True``, the field accepts Unicode letters in addition to ASCII
@ -1093,7 +1114,8 @@ The admin adds some JavaScript shortcuts.
.. class:: URLField(max_length=200, **options) .. class:: URLField(max_length=200, **options)
A :class:`CharField` for a URL. A :class:`CharField` for a URL, validated by
:class:`~django.core.validators.URLValidator`.
The default form widget for this field is a :class:`~django.forms.TextInput`. The default form widget for this field is a :class:`~django.forms.TextInput`.