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Following web standards, the modern _evergreen_ browsers are all supported. This applies equally to mobile platforms. Assuming current trends continue, this should be a sustainable policy. Microsoft deprecated all versions of Internet Explorer. IE 11, the last version, is described as a "compatibility solution" rather than a web browser. Whilst it will receive security updates for the lifetime of Windows 10 it's use is actively discouraged. The IE 11 downloads page makes it clear: "We recommend you use the new Microsoft Edge".
112 lines
5.8 KiB
Plaintext
112 lines
5.8 KiB
Plaintext
==============
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FAQ: The admin
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==============
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I can't log in. When I enter a valid username and password, it just brings up the login page again, with no error messages.
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===========================================================================================================================
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The login cookie isn't being set correctly, because the domain of the cookie
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sent out by Django doesn't match the domain in your browser. Try setting the
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:setting:`SESSION_COOKIE_DOMAIN` setting to match your domain. For example, if
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you're going to "https://www.example.com/admin/" in your browser, set
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``SESSION_COOKIE_DOMAIN = 'www.example.com'``.
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I can't log in. When I enter a valid username and password, it brings up the login page again, with a "Please enter a correct username and password" error.
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===========================================================================================================================================================
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If you're sure your username and password are correct, make sure your user
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account has :attr:`~django.contrib.auth.models.User.is_active` and
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:attr:`~django.contrib.auth.models.User.is_staff` set to True. The admin site
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only allows access to users with those two fields both set to True.
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How do I automatically set a field's value to the user who last edited the object in the admin?
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===============================================================================================
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The :class:`~django.contrib.admin.ModelAdmin` class provides customization hooks
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that allow you to transform an object as it saved, using details from the
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request. By extracting the current user from the request, and customizing the
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:meth:`~django.contrib.admin.ModelAdmin.save_model` hook, you can update an
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object to reflect the user that edited it. See :ref:`the documentation on
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ModelAdmin methods <model-admin-methods>` for an example.
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How do I limit admin access so that objects can only be edited by the users who created them?
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=============================================================================================
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The :class:`~django.contrib.admin.ModelAdmin` class also provides customization
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hooks that allow you to control the visibility and editability of objects in the
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admin. Using the same trick of extracting the user from the request, the
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:meth:`~django.contrib.admin.ModelAdmin.get_queryset` and
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:meth:`~django.contrib.admin.ModelAdmin.has_change_permission` can be used to
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control the visibility and editability of objects in the admin.
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My admin-site CSS and images showed up fine using the development server, but they're not displaying when using mod_wsgi.
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=========================================================================================================================
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See :ref:`serving the admin files <serving-the-admin-files>`
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in the "How to use Django with mod_wsgi" documentation.
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My "list_filter" contains a ManyToManyField, but the filter doesn't display.
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============================================================================
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Django won't bother displaying the filter for a ``ManyToManyField`` if there
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are fewer than two related objects.
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For example, if your :attr:`~django.contrib.admin.ModelAdmin.list_filter`
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includes :doc:`sites </ref/contrib/sites>`, and there's only one site in your
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database, it won't display a "Site" filter. In that case, filtering by site
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would be meaningless.
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Some objects aren't appearing in the admin.
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===========================================
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Inconsistent row counts may be caused by missing foreign key values or a
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foreign key field incorrectly set to :attr:`null=False
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<django.db.models.Field.null>`. If you have a record with a
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:class:`~django.db.models.ForeignKey` pointing to a nonexistent object and
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that foreign key is included is
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:attr:`~django.contrib.admin.ModelAdmin.list_display`, the record will not be
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shown in the admin changelist because the Django model is declaring an
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integrity constraint that is not implemented at the database level.
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How can I customize the functionality of the admin interface?
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=============================================================
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You've got several options. If you want to piggyback on top of an add/change
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form that Django automatically generates, you can attach arbitrary JavaScript
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modules to the page via the model's class Admin :ref:`js parameter
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<modeladmin-asset-definitions>`. That parameter is a list of URLs, as strings,
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pointing to JavaScript modules that will be included within the admin form via
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a ``<script>`` tag.
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If you want more flexibility than is feasible by tweaking the auto-generated
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forms, feel free to write custom views for the admin. The admin is powered by
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Django itself, and you can write custom views that hook into the authentication
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system, check permissions and do whatever else they need to do.
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If you want to customize the look-and-feel of the admin interface, read the
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next question.
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The dynamically-generated admin site is ugly! How can I change it?
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==================================================================
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We like it, but if you don't agree, you can modify the admin site's
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presentation by editing the CSS stylesheet and/or associated image files. The
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site is built using semantic HTML and plenty of CSS hooks, so any changes you'd
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like to make should be possible by editing the stylesheet.
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.. _admin-browser-support:
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What browsers are supported for using the admin?
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================================================
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The admin provides a fully-functional experience to the recent versions of
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modern, web standards compliant browsers. On desktop this means Chrome, Edge,
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Firefox, Opera, Safari, and others.
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On mobile and tablet devices, the admin provides a responsive experience for
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web standards compliant browsers. This includes the major browsers on both
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Android and iOS.
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Depending on feature support, there *may* be minor stylistic differences
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between browsers. These are considered acceptable variations in rendering.
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