title: django.db.models CharField Example Code

category: page

slug: django-db-models-charfield-examples

sortorder: 50101

toc: False

sidebartitle: django.db.models CharField

meta: Python code examples for the CharField class used in the Django ORM, found within the django.db.models module of the Django project.

[CharField](https://github.com/django/django/blob/master/django/db/models/fields/__init__.py)

is a commonly-defined field used as an attribute to reference a

text-based [database](/databases.html) column when defining

[Model](/django-db-models-model-examples.html) classes with

the [Django ORM](/django-orm.html).

The [Django](/django.html) project has wonderful documentation for

[CharField](https://docs.djangoproject.com/en/dev/ref/models/fields/#django.db.models.CharField)

and all of the other column fields.

Note that `CharField` is defined within the

[django.db.models.fields](https://github.com/django/django/blob/master/django/db/models/fields/__init__.py)

module but is typically referenced from

[django.db.models](https://github.com/django/django/tree/master/django/db/models)

rather than including the `fields` module reference.

[django-smithy](https://github.com/jamiecounsell/django-smithy) is

a code library for [Django](/django.html) that allows users to send

HTTP requests from the Django admin user interface. The code for

the project is open source under the

[MIT license](https://github.com/jamiecounsell/django-smithy/blob/master/LICENSE).

[**django-smithy / smithy / models.py**](https://github.com/jamiecounsell/django-smithy/blob/master/smithy/models.py)

~~from django.db import models

from django.db.models.signals import post_save

from django.dispatch import receiver

from requests import Request as HTTPRequest, Session

from requests.cookies import create_cookie, RequestsCookieJar

from urllib.parse import parse_qs, urlparse, urlencode

from requests_toolbelt.utils import dump

from model_utils.models import TimeStampedModel

from smithy.helpers import render_with_context, parse_dump_result

class NameValueModel(TimeStampedModel):

~~ name = models.CharField(max_length = 200)

value = models.TextField(blank = True)

def __str__(self):

return self.name

class Meta:

abstract = True

class Request(TimeStampedModel):

"""

METHODS = (

('GET', 'GET'),

('POST', 'POST'),

('PUT', 'PUT'),

('DELETE', 'DELETE'),

('OPTIONS', 'OPTIONS'),

('HEAD', 'HEAD'),

)

BODY_TYPES = (

('', 'Other'),

('application/x-www-form-urlencoded', 'x-www-form-urlencoded'),

('application/json', 'JSON'),

('text/plain', 'Text'),

('application/javascript', 'JavaScript'),

('application/xml', 'XML (application/xml)'),

('text/xml', 'XML (text/xml)'),

('text/html', 'HTML'),

)

~~ method = models.CharField(

~~ max_length = 7, choices = METHODS,

~~ blank = False, null = False)

~~ name = models.CharField(max_length = 500, blank = False)

~~ url = models.CharField(max_length = 2083)

body = models.TextField(blank = True)

~~ content_type = models.CharField(

~~ default = BODY_TYPES[0][0],

~~ blank = True, null = True,

~~ max_length = 100, choices = BODY_TYPES)

def __str__(self):

if self.name:

return self.name

return "{} {}".format(

self.method,

self.url,

)

[**django-audit-log / audit-log / models / __init__.py**](https://github.com/vvangelovski/django-audit-log/blob/master/audit_log/models/__init__.py)

[**django-cms / cms / models / permisssionmodels.py**](https://github.com/divio/django-cms/blob/develop/cms/models/pagemodel.py)

~~ can_change_advanced_settings = models.BooleanField(_(\

~~ "can change advanced settings"),

[**dccnconf / wwwdccn / conferences / models.py**](https://github.com/dccnconf/dccnsys/blob/master/wwwdccn/conferences/models.py)

[**mezzanine / mezzanine / core / models.py**](https://github.com/stephenmcd/mezzanine/blob/master/mezzanine/core/models.py)