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id="_modules-django-template-backends-django"> <h1>Source code for django.template.backends.django</h1><div class="highlight"><pre> <span></span><span class="c1"># Since this package contains a "django" module, this is required on Python 2.</span> <span class="kn">from</span> <span class="nn">__future__</span> <span class="k">import</span> <span class="n">absolute_import</span> <span class="kn">import</span> <span class="nn">warnings</span> <span class="kn">from</span> <span class="nn">django.conf</span> <span class="k">import</span> <span class="n">settings</span> <span class="kn">from</span> <span class="nn">django.template.context</span> <span class="k">import</span> <span class="n">Context</span><span class="p">,</span> <span class="n">RequestContext</span><span class="p">,</span> <span class="n">make_context</span> <span class="kn">from</span> <span class="nn">django.template.engine</span> <span class="k">import</span> <span class="n">Engine</span><span class="p">,</span> <span class="n">_dirs_undefined</span> <span class="kn">from</span> <span class="nn">django.utils.deprecation</span> <span class="k">import</span> <span class="n">RemovedInDjango110Warning</span> <span class="kn">from</span> <span class="nn">.base</span> <span class="k">import</span> <span class="n">BaseEngine</span> <div class="viewcode-block" id="DjangoTemplates"><a class="viewcode-back" href="../../../../topics/templates.html#django.template.backends.django.DjangoTemplates">[docs]</a><span class="k">class</span> <span class="nc">DjangoTemplates</span><span class="p">(</span><span class="n">BaseEngine</span><span class="p">):</span> <span class="n">app_dirname</span> <span class="o">=</span> <span class="s1">'templates'</span> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">params</span><span class="p">):</span> <span class="n">params</span> <span class="o">=</span> <span class="n">params</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span> <span class="n">options</span> <span class="o">=</span> <span class="n">params</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="s1">'OPTIONS'</span><span class="p">)</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span> <span class="n">options</span><span class="o">.</span><span class="n">setdefault</span><span class="p">(</span><span class="s1">'debug'</span><span class="p">,</span> <span class="n">settings</span><span class="o">.</span><span class="n">DEBUG</span><span class="p">)</span> <span class="n">options</span><span class="o">.</span><span class="n">setdefault</span><span class="p">(</span><span class="s1">'file_charset'</span><span class="p">,</span> <span class="n">settings</span><span class="o">.</span><span class="n">FILE_CHARSET</span><span class="p">)</span> <span class="nb">super</span><span class="p">(</span><span class="n">DjangoTemplates</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="n">params</span><span class="p">)</span> <span class="bp">self</span><span class="o">.</span><span class="n">engine</span> <span class="o">=</span> <span class="n">Engine</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">dirs</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">app_dirs</span><span class="p">,</span> <span class="o">**</span><span class="n">options</span><span class="p">)</span> <span class="k">def</span> <span class="nf">from_string</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">template_code</span><span class="p">):</span> <span class="k">return</span> <span class="n">Template</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">engine</span><span class="o">.</span><span class="n">from_string</span><span class="p">(</span><span class="n">template_code</span><span class="p">))</span> <span class="k">def</span> <span class="nf">get_template</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">template_name</span><span class="p">,</span> <span class="n">dirs</span><span class="o">=</span><span class="n">_dirs_undefined</span><span class="p">):</span> <span class="k">return</span> <span class="n">Template</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">engine</span><span class="o">.</span><span class="n">get_template</span><span class="p">(</span><span class="n">template_name</span><span class="p">,</span> <span class="n">dirs</span><span class="p">))</span></div> <span class="k">class</span> <span class="nc">Template</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span> <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">template</span><span class="p">):</span> <span class="bp">self</span><span class="o">.</span><span class="n">template</span> <span class="o">=</span> <span class="n">template</span> <span class="nd">@property</span> <span class="k">def</span> <span class="nf">origin</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span> <span class="c1"># TODO: define the Origin API. For now simply forwarding to the</span> <span class="c1"># underlying Template preserves backwards-compatibility.</span> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">template</span><span class="o">.</span><span class="n">origin</span> <span class="k">def</span> <span class="nf">render</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">context</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">request</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span> <span class="c1"># A deprecation path is required here to cover the following usage:</span> <span class="c1"># >>> from django.template import Context</span> <span class="c1"># >>> from django.template.loader import get_template</span> <span class="c1"># >>> template = get_template('hello.html')</span> <span class="c1"># >>> template.render(Context({'name': 'world'}))</span> <span class="c1"># In Django 1.7 get_template() returned a django.template.Template.</span> <span class="c1"># In Django 1.8 it returns a django.template.backends.django.Template.</span> <span class="c1"># In Django 1.10 the isinstance checks should be removed. If passing a</span> <span class="c1"># Context or a RequestContext works by accident, it won't be an issue</span> <span class="c1"># per se, but it won't be officially supported either.</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">context</span><span class="p">,</span> <span class="n">RequestContext</span><span class="p">):</span> <span class="k">if</span> <span class="n">request</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> <span class="ow">and</span> <span class="n">request</span> <span class="ow">is</span> <span class="ow">not</span> <span class="n">context</span><span class="o">.</span><span class="n">request</span><span class="p">:</span> <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span> <span class="s2">"render() was called with a RequestContext and a request "</span> <span class="s2">"argument which refer to different requests. Make sure "</span> <span class="s2">"that the context argument is a dict or at least that "</span> <span class="s2">"the two arguments refer to the same request."</span><span class="p">)</span> <span class="n">warnings</span><span class="o">.</span><span class="n">warn</span><span class="p">(</span> <span class="s2">"render() must be called with a dict, not a RequestContext."</span><span class="p">,</span> <span class="n">RemovedInDjango110Warning</span><span class="p">,</span> <span class="n">stacklevel</span><span class="o">=</span><span class="mi">2</span><span class="p">)</span> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">context</span><span class="p">,</span> <span class="n">Context</span><span class="p">):</span> <span class="n">warnings</span><span class="o">.</span><span class="n">warn</span><span class="p">(</span> <span class="s2">"render() must be called with a dict, not a Context."</span><span class="p">,</span> <span class="n">RemovedInDjango110Warning</span><span class="p">,</span> <span class="n">stacklevel</span><span class="o">=</span><span class="mi">2</span><span class="p">)</span> <span class="k">else</span><span class="p">:</span> <span class="n">context</span> <span class="o">=</span> <span class="n">make_context</span><span class="p">(</span><span class="n">context</span><span class="p">,</span> <span class="n">request</span><span class="p">)</span> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">template</span><span class="o">.</span><span class="n">render</span><span class="p">(</span><span class="n">context</span><span class="p">)</span> </pre></div> </div> </div> </div> <div class="yui-b" id="sidebar"> <div class="sphinxsidebar" role="navigation" aria-label="main navigation"> <div class="sphinxsidebarwrapper"> <h3>Browse</h3> <ul> </ul> <h3>You are here:</h3> <ul> <li> <a href="../../../../index.html">Django 1.8.19 documentation</a> <ul><li><a href="../../../index.html">Module code</a> <ul><li><a href="../../../django.html">django</a> <ul><li>django.template.backends.django</li></ul> </li></ul></li></ul> </li> </ul> <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="Module code" accesskey="U">up</a></div> </div> </div> <div class="clearer"></div> </div> </body> </html>