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new django code examples
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‎content/pages/examples/django/django-forms-baseform.markdown‎

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title: django.forms BaseForm Example Code
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category: page
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slug: django-forms-baseform-examples
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sortorder: 500011255
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toc: False
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sidebartitle: django.forms BaseForm
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meta: Python example code for the BaseForm class from the django.forms module of the Django project.
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BaseForm is a class within the django.forms module of the Django project.
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## Example 1 from django-wiki
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[django-wiki](https://github.com/django-wiki/django-wiki)
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([project documentation](https://django-wiki.readthedocs.io/en/master/),
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[demo](https://demo.django-wiki.org/),
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and [PyPI page](https://pypi.org/project/django-wiki/))
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is a wiki system code library for [Django](/django.html)
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projects that makes it easier to create user-editable content.
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The project aims to provide necessary core features and then
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have an easy plugin format for additional features, rather than
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having every exhaustive feature built into the core system.
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django-wiki is a rewrite of an earlier now-defunct project
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named [django-simplewiki](https://code.google.com/p/django-simple-wiki/).
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The code for django-wiki is provided as open source under the
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[GNU General Public License 3.0](https://github.com/django-wiki/django-wiki/blob/master/COPYING).
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[**django-wiki / src/wiki / templatetags / wiki_tags.py**](https://github.com/django-wiki/django-wiki/blob/master/src/wiki/templatetags/wiki_tags.py)
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```python
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# wiki_tags.py
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import re
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from django import template
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from django.apps import apps
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from django.conf import settings as django_settings
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from django.contrib.contenttypes.models import ContentType
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from django.db.models import Model
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~~from django.forms import BaseForm
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from django.template.defaultfilters import striptags
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from django.utils.http import urlquote
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from django.utils.safestring import mark_safe
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from wiki import models
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from wiki.conf import settings
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from wiki.core.plugins import registry as plugin_registry
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register = template.Library()
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_cache = {}
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@register.simple_tag(takes_context=True)
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def article_for_object(context, obj):
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if not isinstance(obj, Model):
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raise TypeError(
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"A Wiki article can only be associated to a Django Model "
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"instance, not %s" % type(obj)
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)
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content_type = ContentType.objects.get_for_model(obj)
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if True or obj not in _cache:
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## ... source file abbreviated to get to BaseForm examples ...
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@register.inclusion_tag("wiki/includes/render.html", takes_context=True)
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def wiki_render(context, article, preview_content=None):
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if preview_content:
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content = article.render(preview_content=preview_content)
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elif article.current_revision:
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content = article.get_cached_content(user=context.get("user"))
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else:
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content = None
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context.update(
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{
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"article": article,
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"content": content,
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"preview": preview_content is not None,
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"plugins": plugin_registry.get_plugins(),
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"STATIC_URL": django_settings.STATIC_URL,
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"CACHE_TIMEOUT": settings.CACHE_TIMEOUT,
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}
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)
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return context
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@register.inclusion_tag("wiki/includes/form.html", takes_context=True)
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def wiki_form(context, form_obj):
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~~ if not isinstance(form_obj, BaseForm):
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raise TypeError(
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"Error including form, it's not a form, it's a %s" % type(form_obj)
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)
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context.update({"form": form_obj})
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return context
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@register.inclusion_tag("wiki/includes/messages.html", takes_context=True)
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def wiki_messages(context):
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messages = context.get("messages", [])
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for message in messages:
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message.css_class = settings.MESSAGE_TAG_CSS_CLASS[message.level]
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context.update({"messages": messages})
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return context
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@register.filter
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def get_content_snippet(content, keyword, max_words=30):
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def clean_text(content):
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content = striptags(content)
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words = content.split()
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## ... source file continues with no further BaseForm examples...
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```
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‎content/pages/examples/django/django-forms-checkboxinput.markdown‎

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title: django.forms CheckboxInput Example Code
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category: page
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slug: django-forms-checkboxinput-examples
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sortorder: 500011258
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toc: False
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sidebartitle: django.forms CheckboxInput
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meta: Python example code for the CheckboxInput class from the django.forms module of the Django project.
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CheckboxInput is a class within the django.forms module of the Django project.
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## Example 1 from django-jet
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[django-jet](https://github.com/geex-arts/django-jet)
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([project documentation](https://jet.readthedocs.io/en/latest/),
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[PyPI project page](https://pypi.org/project/django-jet/) and
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[more information](http://jet.geex-arts.com/))
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is a fancy [Django](/django.html) Admin panel replacement.
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The django-jet project is open source under the
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[GNU Affero General Public License v3.0](https://github.com/geex-arts/django-jet/blob/dev/LICENSE).
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[**django-jet / jet / templatetags / jet_tags.py**](https://github.com/geex-arts/django-jet/blob/dev/jet/templatetags/jet_tags.py)
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```python
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# jet_tags.py
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from __future__ import unicode_literals
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import json
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import os
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from django import template
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try:
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from django.core.urlresolvers import reverse
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except ImportError: # Django 1.11
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from django.urls import reverse
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~~from django.forms import CheckboxInput, ModelChoiceField, Select, ModelMultipleChoiceField, SelectMultiple
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from django.contrib.admin.widgets import RelatedFieldWidgetWrapper
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from django.utils.formats import get_format
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from django.utils.safestring import mark_safe
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from django.utils.encoding import smart_text
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from jet import settings, VERSION
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from jet.models import Bookmark
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from jet.utils import get_model_instance_label, get_model_queryset, get_possible_language_codes, \
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get_admin_site, get_menu_items
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try:
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from urllib.parse import parse_qsl
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except ImportError:
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from urlparse import parse_qsl
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register = template.Library()
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assignment_tag = register.assignment_tag if hasattr(register, 'assignment_tag') else register.simple_tag
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@assignment_tag
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def jet_get_date_format():
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return get_format('DATE_INPUT_FORMATS')[0]
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@assignment_tag
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def jet_get_time_format():
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return get_format('TIME_INPUT_FORMATS')[0]
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@assignment_tag
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def jet_get_datetime_format():
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return get_format('DATETIME_INPUT_FORMATS')[0]
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@assignment_tag(takes_context=True)
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def jet_get_menu(context):
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return get_menu_items(context)
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@assignment_tag
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def jet_get_bookmarks(user):
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if user is None:
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return None
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return Bookmark.objects.filter(user=user.pk)
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@register.filter
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def jet_is_checkbox(field):
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~~ return field.field.widget.__class__.__name__ == CheckboxInput().__class__.__name__
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@register.filter
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def jet_select2_lookups(field):
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if hasattr(field, 'field') and \
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(isinstance(field.field, ModelChoiceField) or isinstance(field.field, ModelMultipleChoiceField)):
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qs = field.field.queryset
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model = qs.model
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if getattr(model, 'autocomplete_search_fields', None) and getattr(field.field, 'autocomplete', True):
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choices = []
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app_label = model._meta.app_label
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model_name = model._meta.object_name
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attrs = {
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'class': 'ajax',
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'data-app-label': app_label,
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'data-model': model_name,
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'data-ajax--url': reverse('jet:model_lookup')
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}
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initial_value = field.value()
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if hasattr(field, 'field') and isinstance(field.field, ModelMultipleChoiceField):
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## ... source file continues with no further CheckboxInput examples...
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```
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‎content/pages/examples/django/django-forms-checkboxselectmultiple.markdown‎

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title: django.forms CheckboxSelectMultiple Example Code
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category: page
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slug: django-forms-checkboxselectmultiple-examples
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sortorder: 500011259
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toc: False
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sidebartitle: django.forms CheckboxSelectMultiple
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meta: Python example code for the CheckboxSelectMultiple class from the django.forms module of the Django project.
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CheckboxSelectMultiple is a class within the django.forms module of the Django project.
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## Example 1 from dccnsys
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[dccnsys](https://github.com/dccnconf/dccnsys) is a conference registration
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system built with [Django](/django.html). The code is open source under the
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[MIT license](https://github.com/dccnconf/dccnsys/blob/master/LICENSE).
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[**dccnsys / wwwdccn / gears / widgets.py**](https://github.com/dccnconf/dccnsys/blob/master/wwwdccn/gears/widgets.py)
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```python
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# widgets.py
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~~from django.forms import FileInput, CheckboxSelectMultiple, Select
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class CustomFileInput(FileInput):
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template_name = 'gears/widgets/file_input.html'
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accept = ''
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show_file_name = True
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~~class CustomCheckboxSelectMultiple(CheckboxSelectMultiple):
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template_name = 'gears/widgets/checkbox_multiple_select.html'
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hide_label = False
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hide_apply_btn = False
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class Media:
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js = ('gears/js/checkbox_multiple_select.js',)
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def __init__(self, *args, **kwargs):
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self.hide_label = kwargs.pop('hide_label', False)
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self.hide_apply_btn = kwargs.pop('hide_apply_btn', False)
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super().__init__(*args, **kwargs)
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def get_context(self, name, value, attrs):
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context = super().get_context(name, value, attrs)
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context['widget'].update({
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'hide_label': self.hide_label,
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'hide_apply_btn': self.hide_apply_btn,
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})
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return context
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class DropdownSelectSubmit(Select):
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template_name = 'gears/widgets/dropdown_select_submit.html'
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empty_label = 'Not selected'
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## ... source file continues with no further CheckboxSelectMultiple examples...
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```
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