Using Django time/date widgets in custom form

Question

How can I use the nifty JavaScript date and time widgets that the default admin uses with my custom view?

I have looked through the Django forms documentation, and it briefly mentions django.contrib.admin.widgets, but I don't know how to use it?

Here is my template that I want it applied on.

<form action="." method="POST">
    <table>
        {% for f in form %}
           <tr> <td> {{ f.name }}</td> <td>{{ f }}</td> </tr>
        {% endfor %}
    </table>
    <input type="submit" name="submit" value="Add Product">
</form>

Also, I think it should be noted that I haven't really written a view up myself for this form, I am using a generic view. Here is the entry from the url.py:

(r'^admin/products/add/$', create_object, {'model': Product, 'post_save_redirect': ''}),

And I am relevantly new to the whole Django/MVC/MTV thing, so please go easy...

Answer 1

The growing complexity of this answer over time, and the many hacks required, probably ought to caution you against doing this at all. It's relying on undocumented internal implementation details of the admin, is likely to break again in future versions of Django, and is no easier to implement than just finding another JS calendar widget and using that.

That said, here's what you have to do if you're determined to make this work:

1. Define your own ModelForm subclass for your model (best to put it in forms.py in your app), and tell it to use the AdminDateWidget / AdminTimeWidget / AdminSplitDateTime (replace 'mydate' etc with the proper field names from your model):

   from django import forms
   from my_app.models import Product
   from django.contrib.admin import widgets                                       
   
   class ProductForm(forms.ModelForm):
       class Meta:
           model = Product
       def __init__(self, *args, **kwargs):
           super(ProductForm, self).__init__(*args, **kwargs)
           self.fields['mydate'].widget = widgets.AdminDateWidget()
           self.fields['mytime'].widget = widgets.AdminTimeWidget()
           self.fields['mydatetime'].widget = widgets.AdminSplitDateTime()
   

2. Change your URLconf to pass 'form_class': ProductForm instead of 'model': Product to the generic create_object view (that'll mean "from my_app.forms import ProductForm" instead of "from my_app.models import Product", of course).

3. In the head of your template, include {{ form.media }} to output the links to the Javascript files.

4. And the hacky part: the admin date/time widgets presume that the i18n JS stuff has been loaded, and also require core.js, but don't provide either one automatically. So in your template above {{ form.media }} you'll need:

   <script type="text/javascript" src="/my_admin/jsi18n/"></script>
   <script type="text/javascript" src="/media/admin/js/core.js"></script>
   

   You may also wish to use the following admin CSS (thanks Alex for mentioning this):

   <link rel="stylesheet" type="text/css" href="/media/admin/css/forms.css"/>
   <link rel="stylesheet" type="text/css" href="/media/admin/css/base.css"/>
   <link rel="stylesheet" type="text/css" href="/media/admin/css/global.css"/>
   <link rel="stylesheet" type="text/css" href="/media/admin/css/widgets.css"/>
   

This implies that Django's admin media (ADMIN_MEDIA_PREFIX) is at /media/admin/ - you can change that for your setup. Ideally you'd use a context processor to pass this values to your template instead of hardcoding it, but that's beyond the scope of this question.

This also requires that the URL /my_admin/jsi18n/ be manually wired up to the django.views.i18n.javascript_catalog view (or null_javascript_catalog if you aren't using I18N). You have to do this yourself instead of going through the admin application so it's accessible regardless of whether you're logged into the admin (thanks Jeremy for pointing this out). Sample code for your URLconf:

(r'^my_admin/jsi18n', 'django.views.i18n.javascript_catalog'),

Lastly, if you are using Django 1.2 or later, you need some additional code in your template to help the widgets find their media:

{% load adminmedia %} /* At the top of the template. */

/* In the head section of the template. */
<script type="text/javascript">
window.__admin_media_prefix__ = "{% filter escapejs %}{% admin_media_prefix %}{% endfilter %}";
</script>

Thanks lupefiasco for this addition.

Answer 2

As the solution is hackish, I think using your own date/time widget with some JavaScript is more feasible.

Answer 3

Yep, I ended up overriding the /admin/jsi18n/ url.

Here's what I added in my urls.py. Make sure it's above the /admin/ url

    (r'^admin/jsi18n', i18n_javascript),

And here is the i18n_javascript function I created.

from django.contrib import admin
def i18n_javascript(request):
  return admin.site.i18n_javascript(request)

Answer 4

My head code for 1.4 version(some new and some removed)

{% block extrahead %}

<link rel="stylesheet" type="text/css" href="{{ STATIC_URL }}admin/css/forms.css"/>
<link rel="stylesheet" type="text/css" href="{{ STATIC_URL }}admin/css/base.css"/>
<link rel="stylesheet" type="text/css" href="{{ STATIC_URL }}admin/css/global.css"/>
<link rel="stylesheet" type="text/css" href="{{ STATIC_URL }}admin/css/widgets.css"/>

<script type="text/javascript" src="/admin/jsi18n/"></script>
<script type="text/javascript" src="{{ STATIC_URL }}admin/js/core.js"></script>
<script type="text/javascript" src="{{ STATIC_URL }}admin/js/admin/RelatedObjectLookups.js"></script>
<script type="text/javascript" src="{{ STATIC_URL }}admin/js/jquery.js"></script>
<script type="text/javascript" src="{{ STATIC_URL }}admin/js/jquery.init.js"></script>
<script type="text/javascript" src="{{ STATIC_URL }}admin/js/actions.js"></script>
<script type="text/javascript" src="{{ STATIC_URL }}admin/js/calendar.js"></script>
<script type="text/javascript" src="{{ STATIC_URL }}admin/js/admin/DateTimeShortcuts.js"></script>

{% endblock %}

Answer 5

I find myself referencing this post a lot, and found that the documentation defines a slightly less hacky way to override default widgets.

(No need to override the ModelForm's __init__ method)

However, you still need to wire your JS and CSS appropriately as Carl mentions.

forms.py

from django import forms
from my_app.models import Product
from django.contrib.admin import widgets                                       


class ProductForm(forms.ModelForm):
    mydate = forms.DateField(widget=widgets.AdminDateWidget)
    mytime = forms.TimeField(widget=widgets.AdminTimeWidget)
    mydatetime = forms.SplitDateTimeField(widget=widgets.AdminSplitDateTime)

    class Meta:
        model = Product

Reference Field Types to find the default form fields.

Answer 6

Starting in Django 1.2 RC1, if you're using the Django admin date picker widge trick, the following has to be added to your template, or you'll see the calendar icon url being referenced through "/missing-admin-media-prefix/".

{% load adminmedia %} /* At the top of the template. */

/* In the head section of the template. */
<script type="text/javascript">
window.__admin_media_prefix__ = "{% filter escapejs %}{% admin_media_prefix %}{% endfilter %}";
</script>

Answer 7

Complementing the answer by Carl Meyer, I would like to comment that you need to put that header in some valid block (inside the header) within your template.

{% block extra_head %}

<link rel="stylesheet" type="text/css" href="/media/admin/css/forms.css"/>
<link rel="stylesheet" type="text/css" href="/media/admin/css/base.css"/>
<link rel="stylesheet" type="text/css" href="/media/admin/css/global.css"/>
<link rel="stylesheet" type="text/css" href="/media/admin/css/widgets.css"/>

<script type="text/javascript" src="/admin/jsi18n/"></script>
<script type="text/javascript" src="/media/admin/js/core.js"></script>
<script type="text/javascript" src="/media/admin/js/admin/RelatedObjectLookups.js"></script>

{{ form.media }}

{% endblock %}

Answer 8

The below will also work as a last resort if the above failed

class PaymentsForm(forms.ModelForm):
    class Meta:
        model = Payments

    def __init__(self, *args, **kwargs):
        super(PaymentsForm, self).__init__(*args, **kwargs)
        self.fields['date'].widget = SelectDateWidget()

Same as

class PaymentsForm(forms.ModelForm):
    date = forms.DateField(widget=SelectDateWidget())

    class Meta:
        model = Payments

put this in your forms.py from django.forms.extras.widgets import SelectDateWidget

Answer 9

What about just assigning a class to your widget and then binding that class to the JQuery datepicker?

Django forms.py:

class MyForm(forms.ModelForm):

  class Meta:
    model = MyModel

  def __init__(self, *args, **kwargs):
    super(MyForm, self).__init__(*args, **kwargs)
    self.fields['my_date_field'].widget.attrs['class'] = 'datepicker'

And some JavaScript for the template:

  $(".datepicker").datepicker();

Answer 10

For Django >= 2.0

Note: Using admin widgets for date-time fields is not a good idea as admin style-sheets can conflict with your site style-sheets in case you are using bootstrap or any other CSS frameworks. If you are building your site on bootstrap use my bootstrap-datepicker widget django-bootstrap-datepicker-plus.

Step 1: Add javascript-catalog URL to your project's (not app's) urls.py file.

from django.views.i18n import JavaScriptCatalog

urlpatterns = [
    path('jsi18n', JavaScriptCatalog.as_view(), name='javascript-catalog'),
]

Step 2: Add required JavaScript/CSS resources to your template.

<script type="text/javascript" src="{% url 'javascript-catalog' %}"></script>
<script type="text/javascript" src="{% static '/admin/js/core.js' %}"></script>
<link rel="stylesheet" type="text/css" href="{% static '/admin/css/widgets.css' %}">
<style>.calendar>table>caption{caption-side:unset}</style><!--caption fix for bootstrap4-->
{{ form.media }}        {# Form required JS and CSS #}

Step 3: Use admin widgets for date-time input fields in your forms.py.

from django.contrib.admin import widgets
from .models import Product

class ProductCreateForm(forms.ModelForm):
    class Meta:
        model = Product
        fields = ['name', 'publish_date', 'publish_time', 'publish_datetime']
        widgets = {
            'publish_date': widgets.AdminDateWidget,
            'publish_time': widgets.AdminTimeWidget,
            'publish_datetime': widgets.AdminSplitDateTime,
        }

Answer 11

Updated solution and workaround for SplitDateTime with required=False:

forms.py

from django import forms

class SplitDateTimeJSField(forms.SplitDateTimeField):
    def __init__(self, *args, **kwargs):
        super(SplitDateTimeJSField, self).__init__(*args, **kwargs)
        self.widget.widgets[0].attrs = {'class': 'vDateField'}
        self.widget.widgets[1].attrs = {'class': 'vTimeField'}  


class AnyFormOrModelForm(forms.Form):
    date = forms.DateField(widget=forms.TextInput(attrs={'class':'vDateField'}))
    time = forms.TimeField(widget=forms.TextInput(attrs={'class':'vTimeField'}))
    timestamp = SplitDateTimeJSField(required=False,)

form.html

<script type="text/javascript" src="/admin/jsi18n/"></script>
<script type="text/javascript" src="/admin_media/js/core.js"></script>
<script type="text/javascript" src="/admin_media/js/calendar.js"></script>
<script type="text/javascript" src="/admin_media/js/admin/DateTimeShortcuts.js"></script>

urls.py

(r'^admin/jsi18n/', 'django.views.i18n.javascript_catalog'),

Answer 12

I use this, it's great, but I have 2 problems with the template:

1. I see the calendar icons twice for every filed in template.

2. And for TimeField I have 'Enter a valid date.'

   

models.py

from django.db import models
    name=models.CharField(max_length=100)
    create_date=models.DateField(blank=True)
    start_time=models.TimeField(blank=False)
    end_time=models.TimeField(blank=False)

forms.py

from django import forms
from .models import Guide
from django.contrib.admin import widgets

class GuideForm(forms.ModelForm):
    start_time = forms.DateField(widget=widgets.AdminTimeWidget)
    end_time = forms.DateField(widget=widgets.AdminTimeWidget)
    create_date = forms.DateField(widget=widgets.AdminDateWidget)
    class Meta:
        model=Guide
        fields=['name','categorie','thumb']

Answer 13

In Django 10. myproject/urls.py: at the beginning of urlpatterns

  from django.views.i18n import JavaScriptCatalog

urlpatterns = [
    url(r'^jsi18n/$', JavaScriptCatalog.as_view(), name='javascript-catalog'),
.
.
.]

In my template.html:

{% load staticfiles %}

    <script src="{% static "js/jquery-2.2.3.min.js" %}"></script>
    <script src="{% static "js/bootstrap.min.js" %}"></script>
    {# Loading internazionalization for js #}
    {% load i18n admin_modify %}
    <script type="text/javascript" src="{% url 'javascript-catalog' %}"></script>
    <script type="text/javascript" src="{% static "/admin/js/jquery.init.js" %}"></script>

    <link rel="stylesheet" type="text/css" href="{% static "/admin/css/base.css" %}">
    <link rel="stylesheet" type="text/css" href="{% static "/admin/css/forms.css" %}">
    <link rel="stylesheet" type="text/css" href="{% static "/admin/css/login.css" %}">
    <link rel="stylesheet" type="text/css" href="{% static "/admin/css/widgets.css" %}">



    <script type="text/javascript" src="{% static "/admin/js/core.js" %}"></script>
    <script type="text/javascript" src="{% static "/admin/js/SelectFilter2.js" %}"></script>
    <script type="text/javascript" src="{% static "/admin/js/admin/RelatedObjectLookups.js" %}"></script>
    <script type="text/javascript" src="{% static "/admin/js/actions.js" %}"></script>
    <script type="text/javascript" src="{% static "/admin/js/calendar.js" %}"></script>
    <script type="text/javascript" src="{% static "/admin/js/admin/DateTimeShortcuts.js" %}"></script>

Answer 14

My Django Setup : 1.11 Bootstrap: 3.3.7

Since none of the answers are completely clear, I am sharing my template code which presents no errors at all.

Top Half of template:

{% extends 'base.html' %}
{% load static %}
{% load i18n %}

{% block head %}
    <title>Add Interview</title>
{% endblock %}

{% block content %}

<script type="text/javascript" src="{% url 'javascript-catalog' %}"></script>
<script type="text/javascript" src="{% static 'admin/js/core.js' %}"></script>
<link rel="stylesheet" type="text/css" href="{% static 'admin/css/forms.css' %}"/>
<link rel="stylesheet" type="text/css" href="{% static 'admin/css/widgets.css' %}"/>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" >
<script type="text/javascript" src="{% static 'js/jquery.js' %}"></script>

Bottom Half:

<script type="text/javascript" src="/admin/jsi18n/"></script>
<script type="text/javascript" src="{% static 'admin/js/vendor/jquery/jquery.min.js' %}"></script>
<script type="text/javascript" src="{% static 'admin/js/jquery.init.js' %}"></script>
<script type="text/javascript" src="{% static 'admin/js/actions.min.js' %}"></script>
{% endblock %}