<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang=""> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Base views — Django 1.8.19 documentation</title> <link rel="stylesheet" href="../../_static/default.css" type="text/css" /> <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" /> <script type="text/javascript"> var DOCUMENTATION_OPTIONS = { URL_ROOT: '../../', VERSION: '1.8.19', COLLAPSE_INDEX: false, FILE_SUFFIX: '.html', HAS_SOURCE: true }; </script> <script type="text/javascript" src="../../_static/jquery.js"></script> <script type="text/javascript" src="../../_static/underscore.js"></script> <script type="text/javascript" src="../../_static/doctools.js"></script> <link rel="index" title="Index" href="../../genindex.html" /> <link rel="search" title="Search" href="../../search.html" /> <link rel="top" title="Django 1.8.19 documentation" href="../../contents.html" /> <link rel="up" title="Built-in class-based views API" href="index.html" /> <link rel="next" title="Generic display views" href="generic-display.html" /> <link rel="prev" title="Built-in class-based views API" href="index.html" /> <script type="text/javascript" src="../../templatebuiltins.js"></script> <script type="text/javascript"> (function($) { if (!django_template_builtins) { // templatebuiltins.js missing, do nothing. return; } $(document).ready(function() { // Hyperlink Django template tags and filters var base = "../templates/builtins.html"; if (base == "#") { // Special case for builtins.html itself base = ""; } // Tags are keywords, class '.k' $("div.highlight\\-html\\+django span.k").each(function(i, elem) { var tagname = $(elem).text(); if ($.inArray(tagname, django_template_builtins.ttags) != -1) { var fragment = tagname.replace(/_/, '-'); $(elem).html("<a href='" + base + "#" + fragment + "'>" + tagname + "</a>"); } }); // Filters are functions, class '.nf' $("div.highlight\\-html\\+django span.nf").each(function(i, elem) { var filtername = $(elem).text(); if ($.inArray(filtername, django_template_builtins.tfilters) != -1) { var fragment = filtername.replace(/_/, '-'); $(elem).html("<a href='" + base + "#" + fragment + "'>" + filtername + "</a>"); } }); }); })(jQuery); </script> </head> <body role="document"> <div class="document"> <div id="custom-doc" class="yui-t6"> <div id="hd"> <h1><a href="../../index.html">Django 1.8.19 documentation</a></h1> <div id="global-nav"> <a title="Home page" href="../../index.html">Home</a> | <a title="Table of contents" href="../../contents.html">Table of contents</a> | <a title="Global index" href="../../genindex.html">Index</a> | <a title="Module index" href="../../py-modindex.html">Modules</a> </div> <div class="nav"> « <a href="index.html" title="Built-in class-based views API">previous</a> | <a href="../index.html" title="API Reference" accesskey="U">up</a> | <a href="generic-display.html" title="Generic display views">next</a> »</div> </div> <div id="bd"> <div id="yui-main"> <div class="yui-b"> <div class="yui-g" id="ref-class-based-views-base"> <div class="section" id="s-base-views"> <span id="base-views"></span><h1>Base views<a class="headerlink" href="#base-views" title="Permalink to this headline">¶</a></h1> <p>The following three classes provide much of the functionality needed to create Django views. You may think of them as <em>parent</em> views, which can be used by themselves or inherited from. They may not provide all the capabilities required for projects, in which case there are Mixins and Generic class-based views.</p> <p>Many of Django’s built-in class-based views inherit from other class-based views or various mixins. Because this inheritance chain is very important, the ancestor classes are documented under the section title of <strong>Ancestors (MRO)</strong>. MRO is an acronym for Method Resolution Order.</p> <div class="section" id="s-view"> <span id="view"></span><h2>View<a class="headerlink" href="#view" title="Permalink to this headline">¶</a></h2> <dl class="class"> <dt id="django.views.generic.base.View"> <em class="property">class </em><code class="descclassname">django.views.generic.base.</code><code class="descname">View</code><a class="headerlink" href="#django.views.generic.base.View" title="Permalink to this definition">¶</a></dt> <dd><p>The master class-based base view. All other class-based views inherit from this base class.</p> <p><strong>Method Flowchart</strong></p> <ol class="arabic simple"> <li><a class="reference internal" href="#django.views.generic.base.View.dispatch" title="django.views.generic.base.View.dispatch"><code class="xref py py-meth docutils literal"><span class="pre">dispatch()</span></code></a></li> <li><a class="reference internal" href="#django.views.generic.base.View.http_method_not_allowed" title="django.views.generic.base.View.http_method_not_allowed"><code class="xref py py-meth docutils literal"><span class="pre">http_method_not_allowed()</span></code></a></li> <li><a class="reference internal" href="#django.views.generic.base.View.options" title="django.views.generic.base.View.options"><code class="xref py py-meth docutils literal"><span class="pre">options()</span></code></a></li> </ol> <p><strong>Example views.py</strong>:</p> <div class="highlight-default"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">django.http</span> <span class="k">import</span> <span class="n">HttpResponse</span> <span class="kn">from</span> <span class="nn">django.views.generic</span> <span class="k">import</span> <span class="n">View</span> <span class="k">class</span> <span class="nc">MyView</span><span class="p">(</span><span class="n">View</span><span class="p">):</span> <span class="k">def</span> <span class="nf">get</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">request</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span> <span class="k">return</span> <span class="n">HttpResponse</span><span class="p">(</span><span class="s1">'Hello, World!'</span><span class="p">)</span> </pre></div> </div> <p><strong>Example urls.py</strong>:</p> <div class="highlight-default"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">django.conf.urls</span> <span class="k">import</span> <span class="n">url</span> <span class="kn">from</span> <span class="nn">myapp.views</span> <span class="k">import</span> <span class="n">MyView</span> <span class="n">urlpatterns</span> <span class="o">=</span> <span class="p">[</span> <span class="n">url</span><span class="p">(</span><span class="s1">r'^mine/$'</span><span class="p">,</span> <span class="n">MyView</span><span class="o">.</span><span class="n">as_view</span><span class="p">(),</span> <span class="n">name</span><span class="o">=</span><span class="s1">'my-view'</span><span class="p">),</span> <span class="p">]</span> </pre></div> </div> <p><strong>Attributes</strong></p> <dl class="attribute"> <dt id="django.views.generic.base.View.http_method_names"> <code class="descname">http_method_names</code><a class="headerlink" href="#django.views.generic.base.View.http_method_names" title="Permalink to this definition">¶</a></dt> <dd><p>The list of HTTP method names that this view will accept.</p> <p>Default:</p> <div class="highlight-default"><div class="highlight"><pre><span></span><span class="p">[</span><span class="s1">'get'</span><span class="p">,</span> <span class="s1">'post'</span><span class="p">,</span> <span class="s1">'put'</span><span class="p">,</span> <span class="s1">'patch'</span><span class="p">,</span> <span class="s1">'delete'</span><span class="p">,</span> <span class="s1">'head'</span><span class="p">,</span> <span class="s1">'options'</span><span class="p">,</span> <span class="s1">'trace'</span><span class="p">]</span> </pre></div> </div> </dd></dl> <p><strong>Methods</strong></p> <dl class="classmethod"> <dt id="django.views.generic.base.View.as_view"> <em class="property">classmethod </em><code class="descname">as_view</code>(<em>**initkwargs</em>)<a class="headerlink" href="#django.views.generic.base.View.as_view" title="Permalink to this definition">¶</a></dt> <dd><p>Returns a callable view that takes a request and returns a response:</p> <div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">response</span> <span class="o">=</span> <span class="n">MyView</span><span class="o">.</span><span class="n">as_view</span><span class="p">()(</span><span class="n">request</span><span class="p">)</span> </pre></div> </div> </dd></dl> <dl class="method"> <dt id="django.views.generic.base.View.dispatch"> <code class="descname">dispatch</code>(<em>request</em>, <em>*args</em>, <em>**kwargs</em>)<a class="headerlink" href="#django.views.generic.base.View.dispatch" title="Permalink to this definition">¶</a></dt> <dd><p>The <code class="docutils literal"><span class="pre">view</span></code> part of the view – the method that accepts a <code class="docutils literal"><span class="pre">request</span></code> argument plus arguments, and returns a HTTP response.</p> <p>The default implementation will inspect the HTTP method and attempt to delegate to a method that matches the HTTP method; a <code class="docutils literal"><span class="pre">GET</span></code> will be delegated to <code class="docutils literal"><span class="pre">get()</span></code>, a <code class="docutils literal"><span class="pre">POST</span></code> to <code class="docutils literal"><span class="pre">post()</span></code>, and so on.</p> <p>By default, a <code class="docutils literal"><span class="pre">HEAD</span></code> request will be delegated to <code class="docutils literal"><span class="pre">get()</span></code>. If you need to handle <code class="docutils literal"><span class="pre">HEAD</span></code> requests in a different way than <code class="docutils literal"><span class="pre">GET</span></code>, you can override the <code class="docutils literal"><span class="pre">head()</span></code> method. See <a class="reference internal" href="../../topics/class-based-views/index.html#supporting-other-http-methods"><span class="std std-ref">Supporting other HTTP methods</span></a> for an example.</p> </dd></dl> <dl class="method"> <dt id="django.views.generic.base.View.http_method_not_allowed"> <code class="descname">http_method_not_allowed</code>(<em>request</em>, <em>*args</em>, <em>**kwargs</em>)<a class="headerlink" href="#django.views.generic.base.View.http_method_not_allowed" title="Permalink to this definition">¶</a></dt> <dd><p>If the view was called with a HTTP method it doesn’t support, this method is called instead.</p> <p>The default implementation returns <code class="docutils literal"><span class="pre">HttpResponseNotAllowed</span></code> with a list of allowed methods in plain text.</p> </dd></dl> <dl class="method"> <dt id="django.views.generic.base.View.options"> <code class="descname">options</code>(<em>request</em>, <em>*args</em>, <em>**kwargs</em>)<a class="headerlink" href="#django.views.generic.base.View.options" title="Permalink to this definition">¶</a></dt> <dd><p>Handles responding to requests for the OPTIONS HTTP verb. Returns a list of the allowed HTTP method names for the view.</p> </dd></dl> </dd></dl> </div> <div class="section" id="s-templateview"> <span id="templateview"></span><h2>TemplateView<a class="headerlink" href="#templateview" title="Permalink to this headline">¶</a></h2> <dl class="class"> <dt id="django.views.generic.base.TemplateView"> <em class="property">class </em><code class="descclassname">django.views.generic.base.</code><code class="descname">TemplateView</code><a class="headerlink" href="#django.views.generic.base.TemplateView" title="Permalink to this definition">¶</a></dt> <dd><p>Renders a given template, with the context containing parameters captured in the URL.</p> <p><strong>Ancestors (MRO)</strong></p> <p>This view inherits methods and attributes from the following views:</p> <ul class="simple"> <li><a class="reference internal" href="mixins-simple.html#django.views.generic.base.TemplateResponseMixin" title="django.views.generic.base.TemplateResponseMixin"><code class="xref py py-class docutils literal"><span class="pre">django.views.generic.base.TemplateResponseMixin</span></code></a></li> <li><a class="reference internal" href="mixins-simple.html#django.views.generic.base.ContextMixin" title="django.views.generic.base.ContextMixin"><code class="xref py py-class docutils literal"><span class="pre">django.views.generic.base.ContextMixin</span></code></a></li> <li><a class="reference internal" href="#django.views.generic.base.View" title="django.views.generic.base.View"><code class="xref py py-class docutils literal"><span class="pre">django.views.generic.base.View</span></code></a></li> </ul> <p><strong>Method Flowchart</strong></p> <ol class="arabic simple"> <li><a class="reference internal" href="#django.views.generic.base.View.dispatch" title="django.views.generic.base.View.dispatch"><code class="xref py py-meth docutils literal"><span class="pre">dispatch()</span></code></a></li> <li><a class="reference internal" href="#django.views.generic.base.View.http_method_not_allowed" title="django.views.generic.base.View.http_method_not_allowed"><code class="xref py py-meth docutils literal"><span class="pre">http_method_not_allowed()</span></code></a></li> <li><a class="reference internal" href="mixins-simple.html#django.views.generic.base.ContextMixin.get_context_data" title="django.views.generic.base.ContextMixin.get_context_data"><code class="xref py py-meth docutils literal"><span class="pre">get_context_data()</span></code></a></li> </ol> <p><strong>Example views.py</strong>:</p> <div class="highlight-default"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">django.views.generic.base</span> <span class="k">import</span> <span class="n">TemplateView</span> <span class="kn">from</span> <span class="nn">articles.models</span> <span class="k">import</span> <span class="n">Article</span> <span class="k">class</span> <span class="nc">HomePageView</span><span class="p">(</span><span class="n">TemplateView</span><span class="p">):</span> <span class="n">template_name</span> <span class="o">=</span> <span class="s2">"home.html"</span> <span class="k">def</span> <span class="nf">get_context_data</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span> <span class="n">context</span> <span class="o">=</span> <span class="nb">super</span><span class="p">(</span><span class="n">HomePageView</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">get_context_data</span><span class="p">(</span><span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> <span class="n">context</span><span class="p">[</span><span class="s1">'latest_articles'</span><span class="p">]</span> <span class="o">=</span> <span class="n">Article</span><span class="o">.</span><span class="n">objects</span><span class="o">.</span><span class="n">all</span><span class="p">()[:</span><span class="mi">5</span><span class="p">]</span> <span class="k">return</span> <span class="n">context</span> </pre></div> </div> <p><strong>Example urls.py</strong>:</p> <div class="highlight-default"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">django.conf.urls</span> <span class="k">import</span> <span class="n">url</span> <span class="kn">from</span> <span class="nn">myapp.views</span> <span class="k">import</span> <span class="n">HomePageView</span> <span class="n">urlpatterns</span> <span class="o">=</span> <span class="p">[</span> <span class="n">url</span><span class="p">(</span><span class="s1">r'^$'</span><span class="p">,</span> <span class="n">HomePageView</span><span class="o">.</span><span class="n">as_view</span><span class="p">(),</span> <span class="n">name</span><span class="o">=</span><span class="s1">'home'</span><span class="p">),</span> <span class="p">]</span> </pre></div> </div> <p><strong>Context</strong></p> <ul class="simple"> <li>Populated (through <a class="reference internal" href="mixins-simple.html#django.views.generic.base.ContextMixin" title="django.views.generic.base.ContextMixin"><code class="xref py py-class docutils literal"><span class="pre">ContextMixin</span></code></a>) with the keyword arguments captured from the URL pattern that served the view.</li> </ul> </dd></dl> </div> <div class="section" id="s-redirectview"> <span id="redirectview"></span><h2>RedirectView<a class="headerlink" href="#redirectview" title="Permalink to this headline">¶</a></h2> <dl class="class"> <dt id="django.views.generic.base.RedirectView"> <em class="property">class </em><code class="descclassname">django.views.generic.base.</code><code class="descname">RedirectView</code><a class="headerlink" href="#django.views.generic.base.RedirectView" title="Permalink to this definition">¶</a></dt> <dd><p>Redirects to a given URL.</p> <p>The given URL may contain dictionary-style string formatting, which will be interpolated against the parameters captured in the URL. Because keyword interpolation is <em>always</em> done (even if no arguments are passed in), any <code class="docutils literal"><span class="pre">"%"</span></code> characters in the URL must be written as <code class="docutils literal"><span class="pre">"%%"</span></code> so that Python will convert them to a single percent sign on output.</p> <p>If the given URL is <code class="docutils literal"><span class="pre">None</span></code>, Django will return an <code class="docutils literal"><span class="pre">HttpResponseGone</span></code> (410).</p> <p><strong>Ancestors (MRO)</strong></p> <p>This view inherits methods and attributes from the following view:</p> <ul class="simple"> <li><a class="reference internal" href="#django.views.generic.base.View" title="django.views.generic.base.View"><code class="xref py py-class docutils literal"><span class="pre">django.views.generic.base.View</span></code></a></li> </ul> <p><strong>Method Flowchart</strong></p> <ol class="arabic simple"> <li><a class="reference internal" href="#django.views.generic.base.View.dispatch" title="django.views.generic.base.View.dispatch"><code class="xref py py-meth docutils literal"><span class="pre">dispatch()</span></code></a></li> <li><a class="reference internal" href="#django.views.generic.base.View.http_method_not_allowed" title="django.views.generic.base.View.http_method_not_allowed"><code class="xref py py-meth docutils literal"><span class="pre">http_method_not_allowed()</span></code></a></li> <li><a class="reference internal" href="#django.views.generic.base.RedirectView.get_redirect_url" title="django.views.generic.base.RedirectView.get_redirect_url"><code class="xref py py-meth docutils literal"><span class="pre">get_redirect_url()</span></code></a></li> </ol> <p><strong>Example views.py</strong>:</p> <div class="highlight-default"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">django.shortcuts</span> <span class="k">import</span> <span class="n">get_object_or_404</span> <span class="kn">from</span> <span class="nn">django.views.generic.base</span> <span class="k">import</span> <span class="n">RedirectView</span> <span class="kn">from</span> <span class="nn">articles.models</span> <span class="k">import</span> <span class="n">Article</span> <span class="k">class</span> <span class="nc">ArticleCounterRedirectView</span><span class="p">(</span><span class="n">RedirectView</span><span class="p">):</span> <span class="n">permanent</span> <span class="o">=</span> <span class="kc">False</span> <span class="n">query_string</span> <span class="o">=</span> <span class="kc">True</span> <span class="n">pattern_name</span> <span class="o">=</span> <span class="s1">'article-detail'</span> <span class="k">def</span> <span class="nf">get_redirect_url</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span> <span class="n">article</span> <span class="o">=</span> <span class="n">get_object_or_404</span><span class="p">(</span><span class="n">Article</span><span class="p">,</span> <span class="n">pk</span><span class="o">=</span><span class="n">kwargs</span><span class="p">[</span><span class="s1">'pk'</span><span class="p">])</span> <span class="n">article</span><span class="o">.</span><span class="n">update_counter</span><span class="p">()</span> <span class="k">return</span> <span class="nb">super</span><span class="p">(</span><span class="n">ArticleCounterRedirectView</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">get_redirect_url</span><span class="p">(</span><span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span> </pre></div> </div> <p><strong>Example urls.py</strong>:</p> <div class="highlight-default"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">django.conf.urls</span> <span class="k">import</span> <span class="n">url</span> <span class="kn">from</span> <span class="nn">django.views.generic.base</span> <span class="k">import</span> <span class="n">RedirectView</span> <span class="kn">from</span> <span class="nn">article.views</span> <span class="k">import</span> <span class="n">ArticleCounterRedirectView</span><span class="p">,</span> <span class="n">ArticleDetail</span> <span class="n">urlpatterns</span> <span class="o">=</span> <span class="p">[</span> <span class="n">url</span><span class="p">(</span><span class="s1">r'^counter/(?P<pk>[0-9]+)/$'</span><span class="p">,</span> <span class="n">ArticleCounterRedirectView</span><span class="o">.</span><span class="n">as_view</span><span class="p">(),</span> <span class="n">name</span><span class="o">=</span><span class="s1">'article-counter'</span><span class="p">),</span> <span class="n">url</span><span class="p">(</span><span class="s1">r'^details/(?P<pk>[0-9]+)/$'</span><span class="p">,</span> <span class="n">ArticleDetail</span><span class="o">.</span><span class="n">as_view</span><span class="p">(),</span> <span class="n">name</span><span class="o">=</span><span class="s1">'article-detail'</span><span class="p">),</span> <span class="n">url</span><span class="p">(</span><span class="s1">r'^go-to-django/$'</span><span class="p">,</span> <span class="n">RedirectView</span><span class="o">.</span><span class="n">as_view</span><span class="p">(</span><span class="n">url</span><span class="o">=</span><span class="s1">'http://djangoproject.com'</span><span class="p">),</span> <span class="n">name</span><span class="o">=</span><span class="s1">'go-to-django'</span><span class="p">),</span> <span class="p">]</span> </pre></div> </div> <p><strong>Attributes</strong></p> <dl class="attribute"> <dt id="django.views.generic.base.RedirectView.url"> <code class="descname">url</code><a class="headerlink" href="#django.views.generic.base.RedirectView.url" title="Permalink to this definition">¶</a></dt> <dd><p>The URL to redirect to, as a string. Or <code class="docutils literal"><span class="pre">None</span></code> to raise a 410 (Gone) HTTP error.</p> </dd></dl> <dl class="attribute"> <dt id="django.views.generic.base.RedirectView.pattern_name"> <code class="descname">pattern_name</code><a class="headerlink" href="#django.views.generic.base.RedirectView.pattern_name" title="Permalink to this definition">¶</a></dt> <dd><p>The name of the URL pattern to redirect to. Reversing will be done using the same args and kwargs as are passed in for this view.</p> </dd></dl> <dl class="attribute"> <dt id="django.views.generic.base.RedirectView.permanent"> <code class="descname">permanent</code><a class="headerlink" href="#django.views.generic.base.RedirectView.permanent" title="Permalink to this definition">¶</a></dt> <dd><p>Whether the redirect should be permanent. The only difference here is the HTTP status code returned. If <code class="docutils literal"><span class="pre">True</span></code>, then the redirect will use status code 301. If <code class="docutils literal"><span class="pre">False</span></code>, then the redirect will use status code 302. By default, <code class="docutils literal"><span class="pre">permanent</span></code> is <code class="docutils literal"><span class="pre">True</span></code>.</p> <div class="deprecated"> <p><span class="versionmodified">Deprecated since version 1.8: </span>The default value of the <code class="docutils literal"><span class="pre">permanent</span></code> attribute will change from <code class="docutils literal"><span class="pre">True</span></code> to <code class="docutils literal"><span class="pre">False</span></code> in Django 1.9.</p> </div> </dd></dl> <dl class="attribute"> <dt id="django.views.generic.base.RedirectView.query_string"> <code class="descname">query_string</code><a class="headerlink" href="#django.views.generic.base.RedirectView.query_string" title="Permalink to this definition">¶</a></dt> <dd><p>Whether to pass along the GET query string to the new location. If <code class="docutils literal"><span class="pre">True</span></code>, then the query string is appended to the URL. If <code class="docutils literal"><span class="pre">False</span></code>, then the query string is discarded. By default, <code class="docutils literal"><span class="pre">query_string</span></code> is <code class="docutils literal"><span class="pre">False</span></code>.</p> </dd></dl> <p><strong>Methods</strong></p> <dl class="method"> <dt id="django.views.generic.base.RedirectView.get_redirect_url"> <code class="descname">get_redirect_url</code>(<em>*args</em>, <em>**kwargs</em>)<a class="headerlink" href="#django.views.generic.base.RedirectView.get_redirect_url" title="Permalink to this definition">¶</a></dt> <dd><p>Constructs the target URL for redirection.</p> <p>The default implementation uses <a class="reference internal" href="#django.views.generic.base.RedirectView.url" title="django.views.generic.base.RedirectView.url"><code class="xref py py-attr docutils literal"><span class="pre">url</span></code></a> as a starting string and performs expansion of <code class="docutils literal"><span class="pre">%</span></code> named parameters in that string using the named groups captured in the URL.</p> <p>If <a class="reference internal" href="#django.views.generic.base.RedirectView.url" title="django.views.generic.base.RedirectView.url"><code class="xref py py-attr docutils literal"><span class="pre">url</span></code></a> is not set, <code class="docutils literal"><span class="pre">get_redirect_url()</span></code> tries to reverse the <a class="reference internal" href="#django.views.generic.base.RedirectView.pattern_name" title="django.views.generic.base.RedirectView.pattern_name"><code class="xref py py-attr docutils literal"><span class="pre">pattern_name</span></code></a> using what was captured in the URL (both named and unnamed groups are used).</p> <p>If requested by <a class="reference internal" href="#django.views.generic.base.RedirectView.query_string" title="django.views.generic.base.RedirectView.query_string"><code class="xref py py-attr docutils literal"><span class="pre">query_string</span></code></a>, it will also append the query string to the generated URL. Subclasses may implement any behavior they wish, as long as the method returns a redirect-ready URL string.</p> </dd></dl> </dd></dl> </div> </div> </div> </div> </div> <div class="yui-b" id="sidebar"> <div class="sphinxsidebar" role="navigation" aria-label="main navigation"> <div class="sphinxsidebarwrapper"> <h3><a href="../../contents.html">Table Of Contents</a></h3> <ul> <li><a class="reference internal" href="#">Base views</a><ul> <li><a class="reference internal" href="#view">View</a></li> <li><a class="reference internal" href="#templateview">TemplateView</a></li> <li><a class="reference internal" href="#redirectview">RedirectView</a></li> </ul> </li> </ul> <h3>Browse</h3> <ul> <li>Prev: <a href="index.html">Built-in class-based views API</a></li> <li>Next: <a href="generic-display.html">Generic display views</a></li> </ul> <h3>You are here:</h3> <ul> <li> <a href="../../index.html">Django 1.8.19 documentation</a> <ul><li><a href="../index.html">API Reference</a> <ul><li><a href="index.html">Built-in class-based views API</a> <ul><li>Base views</li></ul> </li></ul></li></ul> </li> </ul> <div role="note" aria-label="source link"> <h3>This Page</h3> <ul class="this-page-menu"> <li><a href="../../_sources/ref/class-based-views/base.txt" rel="nofollow">Show Source</a></li> </ul> </div> <div id="searchbox" style="display: none" role="search"> <h3>Quick search</h3> <form class="search" action="../../search.html" method="get"> <div><input type="text" name="q" /></div> <div><input type="submit" value="Go" /></div> <input type="hidden" name="check_keywords" value="yes" /> <input type="hidden" name="area" value="default" /> </form> </div> <script type="text/javascript">$('#searchbox').show(0);</script> </div> </div> <h3>Last update:</h3> <p class="topless">Mar 10, 2018</p> </div> </div> <div id="ft"> <div class="nav"> « <a href="index.html" title="Built-in class-based views API">previous</a> | <a href="../index.html" title="API Reference" accesskey="U">up</a> | <a href="generic-display.html" title="Generic display views">next</a> »</div> </div> </div> <div class="clearer"></div> </div> </body> </html>