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<h1><a href="../../index.html">Django 1.8.19 documentation</a></h1>
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<div class="yui-g" id="ref-contrib-redirects">
<div class="section" id="s-module-django.contrib.redirects">
<span id="s-the-redirects-app"></span><span id="module-django.contrib.redirects"></span><span id="the-redirects-app"></span><h1>The redirects app<a class="headerlink" href="#module-django.contrib.redirects" title="Permalink to this headline">¶</a></h1>
<p>Django comes with an optional redirects application. It lets you store simple
redirects in a database and handles the redirecting for you. It uses the HTTP
response status code <code class="docutils literal"><span class="pre">301</span> <span class="pre">Moved</span> <span class="pre">Permanently</span></code> by default.</p>
<div class="section" id="s-installation">
<span id="installation"></span><h2>Installation<a class="headerlink" href="#installation" title="Permalink to this headline">¶</a></h2>
<p>To install the redirects app, follow these steps:</p>
<ol class="arabic simple">
<li>Ensure that the <code class="docutils literal"><span class="pre">django.contrib.sites</span></code> framework
<a class="reference internal" href="sites.html#enabling-the-sites-framework"><span class="std std-ref">is installed</span></a>.</li>
<li>Add <code class="docutils literal"><span class="pre">'django.contrib.redirects'</span></code> to your <a class="reference internal" href="../settings.html#std:setting-INSTALLED_APPS"><code class="xref std std-setting docutils literal"><span class="pre">INSTALLED_APPS</span></code></a> setting.</li>
<li>Add <code class="docutils literal"><span class="pre">'django.contrib.redirects.middleware.RedirectFallbackMiddleware'</span></code>
to your <a class="reference internal" href="../settings.html#std:setting-MIDDLEWARE_CLASSES"><code class="xref std std-setting docutils literal"><span class="pre">MIDDLEWARE_CLASSES</span></code></a> setting.</li>
<li>Run the command <a class="reference internal" href="../django-admin.html#django-admin-migrate"><code class="xref std std-djadmin docutils literal"><span class="pre">manage.py</span> <span class="pre">migrate</span></code></a>.</li>
</ol>
</div>
<div class="section" id="s-how-it-works">
<span id="how-it-works"></span><h2>How it works<a class="headerlink" href="#how-it-works" title="Permalink to this headline">¶</a></h2>
<p><code class="docutils literal"><span class="pre">manage.py</span> <span class="pre">migrate</span></code> creates a <code class="docutils literal"><span class="pre">django_redirect</span></code> table in your database. This
is a simple lookup table with <code class="docutils literal"><span class="pre">site_id</span></code>, <code class="docutils literal"><span class="pre">old_path</span></code> and <code class="docutils literal"><span class="pre">new_path</span></code> fields.</p>
<p>The <a class="reference internal" href="#django.contrib.redirects.middleware.RedirectFallbackMiddleware" title="django.contrib.redirects.middleware.RedirectFallbackMiddleware"><code class="xref py py-class docutils literal"><span class="pre">RedirectFallbackMiddleware</span></code></a>
does all of the work. Each time any Django application raises a 404
error, this middleware checks the redirects database for the requested
URL as a last resort. Specifically, it checks for a redirect with the
given <code class="docutils literal"><span class="pre">old_path</span></code> with a site ID that corresponds to the
<a class="reference internal" href="../settings.html#std:setting-SITE_ID"><code class="xref std std-setting docutils literal"><span class="pre">SITE_ID</span></code></a> setting.</p>
<ul class="simple">
<li>If it finds a match, and <code class="docutils literal"><span class="pre">new_path</span></code> is not empty, it redirects to
<code class="docutils literal"><span class="pre">new_path</span></code> using a 301 (“Moved Permanently”) redirect. You can subclass
<a class="reference internal" href="#django.contrib.redirects.middleware.RedirectFallbackMiddleware" title="django.contrib.redirects.middleware.RedirectFallbackMiddleware"><code class="xref py py-class docutils literal"><span class="pre">RedirectFallbackMiddleware</span></code></a>
and set
<a class="reference internal" href="#django.contrib.redirects.middleware.RedirectFallbackMiddleware.response_redirect_class" title="django.contrib.redirects.middleware.RedirectFallbackMiddleware.response_redirect_class"><code class="xref py py-attr docutils literal"><span class="pre">response_redirect_class</span></code></a>
to <a class="reference internal" href="../request-response.html#django.http.HttpResponseRedirect" title="django.http.HttpResponseRedirect"><code class="xref py py-class docutils literal"><span class="pre">django.http.HttpResponseRedirect</span></code></a> to use a
<code class="docutils literal"><span class="pre">302</span> <span class="pre">Moved</span> <span class="pre">Temporarily</span></code> redirect instead.</li>
<li>If it finds a match, and <code class="docutils literal"><span class="pre">new_path</span></code> is empty, it sends a 410 (“Gone”)
HTTP header and empty (content-less) response.</li>
<li>If it doesn’t find a match, the request continues to be processed as
usual.</li>
</ul>
<p>The middleware only gets activated for 404s – not for 500s or responses of any
other status code.</p>
<p>Note that the order of <a class="reference internal" href="../settings.html#std:setting-MIDDLEWARE_CLASSES"><code class="xref std std-setting docutils literal"><span class="pre">MIDDLEWARE_CLASSES</span></code></a> matters. Generally, you
can put <a class="reference internal" href="#django.contrib.redirects.middleware.RedirectFallbackMiddleware" title="django.contrib.redirects.middleware.RedirectFallbackMiddleware"><code class="xref py py-class docutils literal"><span class="pre">RedirectFallbackMiddleware</span></code></a>
at the end of the list, because it’s a last resort.</p>
<p>For more on middleware, read the <a class="reference internal" href="../../topics/http/middleware.html"><span class="doc">middleware docs</span></a>.</p>
</div>
<div class="section" id="s-how-to-add-change-and-delete-redirects">
<span id="how-to-add-change-and-delete-redirects"></span><h2>How to add, change and delete redirects<a class="headerlink" href="#how-to-add-change-and-delete-redirects" title="Permalink to this headline">¶</a></h2>
<div class="section" id="s-via-the-admin-interface">
<span id="via-the-admin-interface"></span><h3>Via the admin interface<a class="headerlink" href="#via-the-admin-interface" title="Permalink to this headline">¶</a></h3>
<p>If you’ve activated the automatic Django admin interface, you should see a
“Redirects” section on the admin index page. Edit redirects as you edit any
other object in the system.</p>
</div>
<div class="section" id="s-via-the-python-api">
<span id="via-the-python-api"></span><h3>Via the Python API<a class="headerlink" href="#via-the-python-api" title="Permalink to this headline">¶</a></h3>
<dl class="class">
<dt id="django.contrib.redirects.models.Redirect">
<em class="property">class </em><code class="descclassname">models.</code><code class="descname">Redirect</code><a class="headerlink" href="#django.contrib.redirects.models.Redirect" title="Permalink to this definition">¶</a></dt>
<dd><p>Redirects are represented by a standard <a class="reference internal" href="../../topics/db/models.html"><span class="doc">Django model</span></a>,
which lives in <a class="reference external" href="https://github.com/django/django/blob/master/django/contrib/redirects/models.py">django/contrib/redirects/models.py</a>. You can access redirect
objects via the <a class="reference internal" href="../../topics/db/queries.html"><span class="doc">Django database API</span></a>.</p>
</dd></dl>
</div>
</div>
<div class="section" id="s-middleware">
<span id="middleware"></span><h2>Middleware<a class="headerlink" href="#middleware" title="Permalink to this headline">¶</a></h2>
<dl class="class">
<dt id="django.contrib.redirects.middleware.RedirectFallbackMiddleware">
<em class="property">class </em><code class="descclassname">middleware.</code><code class="descname">RedirectFallbackMiddleware</code><a class="headerlink" href="#django.contrib.redirects.middleware.RedirectFallbackMiddleware" title="Permalink to this definition">¶</a></dt>
<dd><p>You can change the <a class="reference internal" href="../request-response.html#django.http.HttpResponse" title="django.http.HttpResponse"><code class="xref py py-class docutils literal"><span class="pre">HttpResponse</span></code></a> classes used
by the middleware by creating a subclass of
<a class="reference internal" href="#django.contrib.redirects.middleware.RedirectFallbackMiddleware" title="django.contrib.redirects.middleware.RedirectFallbackMiddleware"><code class="xref py py-class docutils literal"><span class="pre">RedirectFallbackMiddleware</span></code></a>
and overriding <code class="docutils literal"><span class="pre">response_gone_class</span></code> and/or <code class="docutils literal"><span class="pre">response_redirect_class</span></code>.</p>
<dl class="attribute">
<dt id="django.contrib.redirects.middleware.RedirectFallbackMiddleware.response_gone_class">
<code class="descname">response_gone_class</code><a class="headerlink" href="#django.contrib.redirects.middleware.RedirectFallbackMiddleware.response_gone_class" title="Permalink to this definition">¶</a></dt>
<dd><div class="versionadded">
<span class="title">New in Django 1.7.</span> </div>
<p>The <a class="reference internal" href="../request-response.html#django.http.HttpResponse" title="django.http.HttpResponse"><code class="xref py py-class docutils literal"><span class="pre">HttpResponse</span></code></a> class used when a
<a class="reference internal" href="#django.contrib.redirects.models.Redirect" title="django.contrib.redirects.models.Redirect"><code class="xref py py-class docutils literal"><span class="pre">Redirect</span></code></a> is not
found for the requested path or has a blank <code class="docutils literal"><span class="pre">new_path</span></code>
value.</p>
<p>Defaults to <a class="reference internal" href="../request-response.html#django.http.HttpResponseGone" title="django.http.HttpResponseGone"><code class="xref py py-class docutils literal"><span class="pre">HttpResponseGone</span></code></a>.</p>
</dd></dl>
<dl class="attribute">
<dt id="django.contrib.redirects.middleware.RedirectFallbackMiddleware.response_redirect_class">
<code class="descname">response_redirect_class</code><a class="headerlink" href="#django.contrib.redirects.middleware.RedirectFallbackMiddleware.response_redirect_class" title="Permalink to this definition">¶</a></dt>
<dd><div class="versionadded">
<span class="title">New in Django 1.7.</span> </div>
<p>The <a class="reference internal" href="../request-response.html#django.http.HttpResponse" title="django.http.HttpResponse"><code class="xref py py-class docutils literal"><span class="pre">HttpResponse</span></code></a> class that handles the
redirect.</p>
<p>Defaults to <a class="reference internal" href="../request-response.html#django.http.HttpResponsePermanentRedirect" title="django.http.HttpResponsePermanentRedirect"><code class="xref py py-class docutils literal"><span class="pre">HttpResponsePermanentRedirect</span></code></a>.</p>
</dd></dl>
</dd></dl>
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<h3><a href="../../contents.html">Table Of Contents</a></h3>
<ul>
<li><a class="reference internal" href="#">The redirects app</a><ul>
<li><a class="reference internal" href="#installation">Installation</a></li>
<li><a class="reference internal" href="#how-it-works">How it works</a></li>
<li><a class="reference internal" href="#how-to-add-change-and-delete-redirects">How to add, change and delete redirects</a><ul>
<li><a class="reference internal" href="#via-the-admin-interface">Via the admin interface</a></li>
<li><a class="reference internal" href="#via-the-python-api">Via the Python API</a></li>
</ul>
</li>
<li><a class="reference internal" href="#middleware">Middleware</a></li>
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