The Django admin site
This document is for Django's SVN release, which can be significantly different from previous releases. Get old docs here: 0.96, 0.95.
One of the most powerful parts of Django is the automatic admin interface. It reads metadata in your model to provide a powerful and production-ready interface that content producers can immediately use to start adding content to the site. In this document, we discuss how to activate, use and customize Django’s admin interface.
Note
The admin site has been refactored significantly since Django 0.96. This document describes the newest version of the admin site, which allows for much richer customization. If you follow the development of Django itself, you may have heard this described as “newforms-admin.”
Overview
There are five steps in activating the Django admin site:
- Add django.contrib.admin to your INSTALLED_APPS setting.
- Determine which of your application’s models should be editable in the admin interface.
- For each of those models, optionally create a ModelAdmin class that encapsulates the customized admin functionality and options for that particular model.
- Instantiate an AdminSite and tell it about each of your models and ModelAdmin classes.
- Hook the AdminSite instance into your URLconf.
ModelAdmin objects
The ModelAdmin class is the representation of a model in the admin interface. These are stored in a file named admin.py in your application. Let’s take a look at a very simple example the ModelAdmin:
from django.contrib import admin
from myproject.myapp.models import Author
class AuthorAdmin(admin.ModelAdmin):
pass
admin.site.register(Author, AuthorAdmin)
ModelAdmin Options
The ModelAdmin is very flexible. It has several options for dealing with customizing the interface. All options are defined on the ModelAdmin subclass:
class AuthorAdmin(admin.ModelAdmin):
date_hierarchy = 'pub_date'
date_hierarchy
Set date_hierarchy to the name of a DateField or DateTimeField in your model, and the change list page will include a date-based drilldown navigation by that field.
Example:
date_hierarchy = 'pub_date'
form
By default a ModelForm is dynamically created for your model. It is used to create the form presented on both the add/change pages. You can easily provide your own ModelForm to override any default form behavior on the add/change pages.
For an example see the section Adding custom validation to the admin.
fieldsets
Set fieldsets to control the layout of admin “add” and “change” pages.
fieldsets is a list of two-tuples, in which each two-tuple represents a <fieldset> on the admin form page. (A <fieldset> is a “section” of the form.)
The two-tuples are in the format (name, field_options), where name is a string representing the title of the fieldset and field_options is a dictionary of information about the fieldset, including a list of fields to be displayed in it.
A full example, taken from the django.contrib.flatpages.FlatPage model:
class FlatPageAdmin(admin.ModelAdmin):
fieldsets = (
(None, {
'fields': ('url', 'title', 'content', 'sites')
}),
('Advanced options', {
'classes': ('collapse',),
'fields': ('enable_comments', 'registration_required', 'template_name')
}),
)
This results in an admin page that looks like:
If fieldsets isn’t given, Django will default to displaying each field that isn’t an AutoField and has editable=True, in a single fieldset, in the same order as the fields are defined in the model.
The field_options dictionary can have the following keys:
- fields
A tuple of field names to display in this fieldset. This key is required.
Example:
{ 'fields': ('first_name', 'last_name', 'address', 'city', 'state'), }To display multiple fields on the same line, wrap those fields in their own tuple. In this example, the first_name and last_name fields will display on the same line:
{ 'fields': (('first_name', 'last_name'), 'address', 'city', 'state'), }- classes
A list containing extra CSS classes to apply to the fieldset.
Example:
{ 'classes': ['wide', 'extrapretty'], }Two useful classes defined by the default admin-site stylesheet are collapse and wide. Fieldsets with the collapse style will be initially collapsed in the admin and replaced with a small “click to expand” link. Fieldsets with the wide style will be given extra horizontal space.
- description
A string of optional extra text to be displayed at the top of each fieldset, under the heading of the fieldset.
Note that this value is not HTML-escaped when it’s displayed in the admin interface. This lets you include HTML if you so desire. Alternatively you can use plain text and django.utils.html.escape() to escape any HTML special characters.
fields
Use this option as an alternative to fieldsets if the layout does not matter and if you want to only show a subset of the available fields in the form. For example, you could define a simpler version of the admin form for the django.contrib.flatpages.FlatPage model as follows:
class FlatPageAdmin(admin.ModelAdmin):
fields = ('url', 'title', 'content')
In the above example, only the fields ‘url’, ‘title’ and ‘content’ will be displayed, sequencially, in the form.
Note
This fields option should not be confused with the fields dictionary key that is within the fieldsets option, as described in the previous section.
filter_horizontal
Use a nifty unobtrusive JavaScript “filter” interface instead of the usability-challenged <select multiple> in the admin form. The value is a list of fields that should be displayed as a horizontal filter interface. See filter_vertical to use a vertical interface.
filter_vertical
Same as filter_horizontal, but is a vertical display of the filter interface.
list_display
Set list_display to control which fields are displayed on the change list page of the admin.
Example:
list_display = ('first_name', 'last_name')
If you don’t set list_display, the admin site will display a single column that displays the __unicode__() representation of each object.
You have four possible values that can be used in list_display:
A field of the model. For example:
class PersonAdmin(admin.ModelAdmin): list_display = ('first_name', 'last_name')A callable that accepts one parameter for the model instance. For example:
def upper_case_name(obj): return "%s %s" % (obj.first_name, obj.last_name).upper() upper_case_name.short_description = 'Name' class PersonAdmin(admin.ModelAdmin): list_display = (upper_case_name,)A string representating an attribute on the ModelAdmin. This behaves the same as the callable. For example:
class PersonAdmin(admin.ModelAdmin): list_display = ('upper_case_name',) def upper_case_name(self, obj): return "%s %s" % (obj.first_name, obj.last_name).upper() upper_case_name.short_description = 'Name'A string representating an attribute on the model. This behaves almost the same as the callable, but self in this context is the model instance. Here’s a full model example:
class Person(models.Model): name = models.CharField(max_length=50) birthday = models.DateField() def decade_born_in(self): return self.birthday.strftime('%Y')[:3] + "0's" decade_born_in.short_description = 'Birth decade' class PersonAdmin(admin.ModelAdmin): list_display = ('name', 'decade_born_in')
A few special cases to note about list_display:
If the field is a ForeignKey, Django will display the __unicode__() of the related object.
ManyToManyField fields aren’t supported, because that would entail executing a separate SQL statement for each row in the table. If you want to do this nonetheless, give your model a custom method, and add that method’s name to list_display. (See below for more on custom methods in list_display.)
If the field is a BooleanField or NullBooleanField, Django will display a pretty “on” or “off” icon instead of True or False.
If the string given is a method of the model, ModelAdmin or a callable, Django will HTML-escape the output by default. If you’d rather not escape the output of the method, give the method an allow_tags attribute whose value is True.
Here’s a full example model:
class Person(models.Model): first_name = models.CharField(max_length=50) last_name = models.CharField(max_length=50) color_code = models.CharField(max_length=6) def colored_name(self): return '<span style="color: #%s;">%s %s</span>' % (self.color_code, self.first_name, self.last_name) colored_name.allow_tags = True class PersonAdmin(admin.ModelAdmin): list_display = ('first_name', 'last_name', 'colored_name')If the string given is a method of the model, ModelAdmin or a callable that returns True or False Django will display a pretty “on” or “off” icon if you give the method a boolean attribute whose value is True.
Here’s a full example model:
class Person(models.Model): first_name = models.CharField(max_length=50) birthday = models.DateField() def born_in_fifties(self): return self.birthday.strftime('%Y')[:3] == 5 born_in_fifties.boolean = True class PersonAdmin(admin.ModelAdmin): list_display = ('name', 'born_in_fifties')The __str__() and __unicode__() methods are just as valid in list_display as any other model method, so it’s perfectly OK to do this:
list_display = ('__unicode__', 'some_other_field')Usually, elements of list_display that aren’t actual database fields can’t be used in sorting (because Django does all the sorting at the database level).
However, if an element of list_display represents a certain database field, you can indicate this fact by setting the admin_order_field attribute of the item.
For example:
class Person(models.Model): first_name = models.CharField(max_length=50) color_code = models.CharField(max_length=6) def colored_first_name(self): return '<span style="color: #%s;">%s</span>' % (self.color_code, self.first_name) colored_first_name.allow_tags = True colored_first_name.admin_order_field = 'first_name' class PersonAdmin(admin.ModelAdmin): list_display = ('first_name', 'colored_first_name')The above will tell Django to order by the first_name field when trying to sort by colored_first_name in the admin.
list_display_links
Set list_display_links to control which fields in list_display should be linked to the “change” page for an object.
By default, the change list page will link the first column — the first field specified in list_display — to the change page for each item. But list_display_links lets you change which columns are linked. Set list_display_links to a list or tuple of field names (in the same format as list_display) to link.
list_display_links can specify one or many field names. As long as the field names appear in list_display, Django doesn’t care how many (or how few) fields are linked. The only requirement is: If you want to use list_display_links, you must define list_display.
In this example, the first_name and last_name fields will be linked on the change list page:
class PersonAdmin(admin.ModelAdmin):
list_display = ('first_name', 'last_name', 'birthday')
list_display_links = ('first_name', 'last_name')
Finally, note that in order to use list_display_links, you must define list_display, too.
list_filter
Set list_filter to activate filters in the right sidebar of the change list page of the admin. This should be a list of field names, and each specified field should be either a BooleanField, CharField, DateField, DateTimeField, IntegerField or ForeignKey.
This example, taken from the django.contrib.auth.models.User model, shows how both list_display and list_filter work:
class UserAdmin(admin.ModelAdmin):
list_display = ('username', 'email', 'first_name', 'last_name', 'is_staff')
list_filter = ('is_staff', 'is_superuser')
The above code results in an admin change list page that looks like this:
(This example also has search_fields defined. See below.)
list_per_page
Set list_per_page to control how many items appear on each paginated admin change list page. By default, this is set to 100.
inlines
See InlineModelAdmin objects below.
ordering
Set ordering to specify how objects on the admin change list page should be ordered. This should be a list or tuple in the same format as a model’s ordering parameter.
If this isn’t provided, the Django admin will use the model’s default ordering.
Note
Django will only honor the first element in the list/tuple; any others will be ignored.
prepopulated_fields
Set prepopulated_fields to a dictionary mapping field names to the fields it should prepopulate from:
class ArticleAdmin(admin.ModelAdmin):
prepopulated_fields = {"slug": ("title",)}
When set, the given fields will use a bit of JavaScript to populate from the fields assigned. The main use for this functionality is to automatically generate the value for SlugField fields from one or more other fields. The generated value is produced by concatenating the values of the source fields, and then by transforming that result into a valid slug (e.g. substituting dashes for spaces).
prepopulated_fields doesn’t accept DateTimeField, ForeignKey, nor ManyToManyField fields.
radio_fields
By default, Django’s admin uses a select-box interface (<select>) for fields that are ForeignKey or have choices set. If a field is present in radio_fields, Django will use a radio-button interface instead. Assuming group is a ForeignKey on the Person model:
class PersonAdmin(admin.ModelAdmin):
radio_fields = {"group": admin.VERTICAL}
You have the choice of using HORIZONTAL or VERTICAL from the django.contrib.admin module.
Don’t include a field in radio_fields unless it’s a ForeignKey or has choices set.
raw_id_fields
By default, Django’s admin uses a select-box interface (<select>) for fields that are ForeignKey. Sometimes you don’t want to incur the overhead of having to select all the related instances to display in the drop-down.
raw_id_fields is a list of fields you would like to change into a Input widget for either a ForeignKey or ManyToManyField:
class ArticleAdmin(admin.ModelAdmin):
raw_id_fields = ("newspaper",)
save_as
Set save_as to enable a “save as” feature on admin change forms.
Normally, objects have three save options: “Save”, “Save and continue editing” and “Save and add another”. If save_as is True, “Save and add another” will be replaced by a “Save as” button.
“Save as” means the object will be saved as a new object (with a new ID), rather than the old object.
By default, save_as is set to False.
save_on_top
Set save_on_top to add save buttons across the top of your admin change forms.
Normally, the save buttons appear only at the bottom of the forms. If you set save_on_top, the buttons will appear both on the top and the bottom.
By default, save_on_top is set to False.
search_fields
Set search_fields to enable a search box on the admin change list page. This should be set to a list of field names that will be searched whenever somebody submits a search query in that text box.
These fields should be some kind of text field, such as CharField or TextField. You can also perform a related lookup on a ForeignKey with the lookup API “follow” notation:
search_fields = ['foreign_key__related_fieldname']
When somebody does a search in the admin search box, Django splits the search query into words and returns all objects that contain each of the words, case insensitive, where each word must be in at least one of search_fields. For example, if search_fields is set to ['first_name', 'last_name'] and a user searches for john lennon, Django will do the equivalent of this SQL WHERE clause:
WHERE (first_name ILIKE '%john%' OR last_name ILIKE '%john%') AND (first_name ILIKE '%lennon%' OR last_name ILIKE '%lennon%')
For faster and/or more restrictive searches, prefix the field name with an operator:
- ^
Matches the beginning of the field. For example, if search_fields is set to ['^first_name', '^last_name'] and a user searches for john lennon, Django will do the equivalent of this SQL WHERE clause:
WHERE (first_name ILIKE 'john%' OR last_name ILIKE 'john%') AND (first_name ILIKE 'lennon%' OR last_name ILIKE 'lennon%')
This query is more efficient than the normal '%john%' query, because the database only needs to check the beginning of a column’s data, rather than seeking through the entire column’s data. Plus, if the column has an index on it, some databases may be able to use the index for this query, even though it’s a LIKE query.
- =
Matches exactly, case-insensitive. For example, if search_fields is set to ['=first_name', '=last_name'] and a user searches for john lennon, Django will do the equivalent of this SQL WHERE clause:
WHERE (first_name ILIKE 'john' OR last_name ILIKE 'john') AND (first_name ILIKE 'lennon' OR last_name ILIKE 'lennon')
Note that the query input is split by spaces, so, following this example, it’s currently not possible to search for all records in which first_name is exactly 'john winston' (containing a space).
- @
- Performs a full-text match. This is like the default search method but uses an index. Currently this is only available for MySQL.
ModelAdmin methods
save_model(self, request, obj, form, change)
The save_model method is given the HttpRequest, a model instance, a ModelForm instance and a boolean value based on whether it is adding or changing the object. Here you can do any pre- or post-save operations.
For example to attach request.user to the object prior to saving:
class ArticleAdmin(admin.ModelAdmin):
def save_model(self, request, obj, form, change):
obj.user = request.user
obj.save()
save_formset(self, request, form, formset, change)
The save_formset method is given the HttpRequest, the parent ModelForm instance and a boolean value baesed on whether it is adding or changing the parent object.
For example to attach request.user to each changed formset model instance:
class ArticleAdmin(admin.ModelAdmin):
def save_formset(self, request, form, formset, change):
instances = formset.save(commit=False)
for instance in instances:
instance.user = request.user
instance.save()
formset.save_m2m()
ModelAdmin media definitions
There are times where you would like add a bit of CSS and/or JavaScript to the add/change views. This can be accomplished by using a Media inner class on your ModelAdmin:
class ArticleAdmin(admin.ModelAdmin):
class Media:
css = {
"all": ("my_styles.css",)
}
js = ("my_code.js",)
Keep in mind that this will be prepended with MEDIA_URL. The same rules apply as regular media definitions on forms.
Adding custom validation to the admin
Adding custom validation of data in the admin is quite easy. The automatic admin interfaces reuses the Django forms module. The ModelAdmin class gives you the ability define your own form:
class ArticleAdmin(admin.ModelAdmin):
form = MyArticleAdminForm
MyArticleAdminForm can be defined anywhere as long as you import where needed. Now within your form you can add your own custom validation for any field:
class MyArticleAdminForm(forms.ModelForm):
class Meta:
model = Article
def clean_name(self):
# do something that validates your data
return self.cleaned_data["name"]
It is important you use a ModelForm here otherwise things can break. See the forms documentation on custom validation for more information.
InlineModelAdmin objects
The admin interface has the ability to edit models on the same page as a parent model. These are called inlines. You can add them to a model by specifying them in a ModelAdmin.inlines attribute:
class BookInline(admin.TabularInline):
model = Book
class AuthorAdmin(admin.ModelAdmin):
inlines = [
BookInline,
]
Django provides two subclasses of InlineModelAdmin and they are:
- TabularInline
- StackedInline
The difference between these two is merely the template used to render them.
InlineModelAdmin options
The InlineModelAdmin class is a subclass of ModelAdmin so it inherits all the same functionality as well as some of its own:
model
The model in which the inline is using. This is required.
fk_name
The name of the foreign key on the model. In most cases this will be dealt with automatically, but fk_name must be specified explicitly if there are more than one foreign key to the same parent model.
formset
This defaults to BaseInlineFormSet. Using your own formset can give you many possibilities of customization. Inlines are built around model formsets.
form
The value for form is inherited from ModelAdmin. This is what is passed through to formset_factory when creating the formset for this inline.
extra
This controls the number of extra forms the formset will display in addition to the initial forms. See the formsets documentation for more information.
max_num
This controls the maximum number of forms to show in the inline. This doesn’t directly correlate to the number of objects, but can if the value is small enough. See max_num in formsets for more information.
raw_id_fields
By default, Django’s admin uses a select-box interface (<select>) for fields that are ForeignKey. Sometimes you don’t want to incur the overhead of having to select all the related instances to display in the drop-down.
raw_id_fields is a list of fields you would like to change into a Input widget for either a ForeignKey or ManyToManyField:
class BookInline(admin.TabularInline):
model = Book
raw_id_fields = ("pages",)
template
The template used to render the inline on the page.
verbose_name
An override to the verbose_name found in the model’s inner Meta class.
verbose_name_plural
An override to the verbose_name_plural found in the model’s inner Meta class.
Working with a model with two or more foreign keys to the same parent model
It is sometimes possible to have more than one foreign key to the same model. Take this model for instance:
class Friendship(models.Model):
to_person = models.ForeignKey(Person, related_name="friends")
from_person = models.ForeignKey(Person, related_name="from_friends")
If you wanted to display an inline on the Person admin add/change pages you need to explicitly define the foreign key since it is unable to do so automatically:
class FriendshipInline(admin.TabularInline):
model = Friendship
fk_name = "to_person"
class PersonAdmin(admin.ModelAdmin):
inlines = [
FriendshipInline,
]
Working with Many-to-Many Intermediary Models
By default, admin widgets for many-to-many relations will be displayed inline on whichever model contains the actual reference to the ManyToManyField. However, when you specify an intermediary model using the through argument to a ManyToManyField, the admin will not display a widget by default. This is because each instance of that intermediary model requires more information than could be displayed in a single widget, and the layout required for multiple widgets will vary depending on the intermediate model.
However, we still want to be able to edit that information inline. Fortunately, this is easy to do with inline admin models. Suppose we have the following models:
class Person(models.Model):
name = models.CharField(max_length=128)
class Group(models.Model):
name = models.CharField(max_length=128)
members = models.ManyToManyField(Person, through='Membership')
class Membership(models.Model):
person = models.ForeignKey(Person)
group = models.ForeignKey(Group)
date_joined = models.DateField()
invite_reason = models.CharField(max_length=64)
The first step in displaying this intermediate model in the admin is to define an inline class for the Membership model:
class MembershipInline(admin.TabularInline):
model = Membership
extra = 1
This simple example uses the default InlineModelAdmin values for the Membership model, and limits the extra add forms to one. This could be customized using any of the options available to InlineModelAdmin classes.
Now create admin views for the Person and Group models:
class PersonAdmin(admin.ModelAdmin):
inlines = (MembershipInline,)
class GroupAdmin(admin.ModelAdmin):
inlines = (MembershipInline,)
Finally, register your Person and Group models with the admin site:
admin.site.register(Person, PersonAdmin) admin.site.register(Group, GroupAdmin)
Now your admin site is set up to edit Membership objects inline from either the Person or the Group detail pages.
Using generic relations as an inline
It is possible to use an inline with generically related objects. Let’s say you have the following models:
class Image(models.Model):
image = models.ImageField(upload_to="images")
content_type = models.ForeignKey(ContentType)
object_id = models.PositiveIntegerField()
content_object = generic.GenericForeignKey("content_type", "object_id")
class Product(models.Model):
name = models.CharField(max_length=100)
If you want to allow editing and creating Image instance on the Product add/change views you can simply use GenericInlineModelAdmin provided by django.contrib.contenttypes.generic. In your admin.py for this example app:
from django.contrib import admin
from django.contrib.contenttypes import generic
from myproject.myapp.models import Image, Product
class ImageInline(generic.GenericTabularInline):
model = Image
class ProductAdmin(admin.ModelAdmin):
inlines = [
ImageInline,
]
admin.site.register(Product, ProductAdmin)
django.contrib.contenttypes.generic provides both a GenericTabularInline and GenericStackedInline and behave just like any other inline. See the contenttypes documentation for more specific information.
AdminSite objects
Hooking AdminSite instances into your URLconf
The last step in setting up the Django admin is to hook your AdminSite instance into your URLconf. Do this by pointing a given URL at the AdminSite.root method.
In this example, we register the default AdminSite instance django.contrib.admin.site at the URL /admin/
# urls.py
from django.conf.urls.defaults import *
from django.contrib import admin
admin.autodiscover()
urlpatterns = patterns('',
('^admin/(.*)', admin.site.root),
)
Above we used admin.autodiscover() to automatically load the INSTALLED_APPS admin.py modules.
In this example, we register the AdminSite instance myproject.admin.admin_site at the URL /myadmin/
# urls.py
from django.conf.urls.defaults import *
from myproject.admin import admin_site
urlpatterns = patterns('',
('^myadmin/(.*)', admin_site.root),
)
There is really no need to use autodiscover when using your own AdminSite instance since you will likely be importing all the per-app admin.py modules in your myproject.admin module.
Note that the regular expression in the URLpattern must group everything in the URL that comes after the URL root — hence the (.*) in these examples.
Multiple admin sites in the same URLconf
It’s easy to create multiple instances of the admin site on the same Django-powered Web site. Just create multiple instances of AdminSite and root each one at a different URL.
In this example, the URLs /basic-admin/ and /advanced-admin/ feature separate versions of the admin site — using the AdminSite instances myproject.admin.basic_site and myproject.admin.advanced_site, respectively:
# urls.py
from django.conf.urls.defaults import *
from myproject.admin import basic_site, advanced_site
urlpatterns = patterns('',
('^basic-admin/(.*)', basic_site.root),
('^advanced-admin/(.*)', advanced_site.root),
)
Questions/Feedback
If you notice errors with this documentation, please open a ticket and let us know!
Please only use the ticket tracker for criticisms and improvements on the docs. For tech support, ask in the IRC channel or post to the django-users list.

