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   <div id="projectname">Grantlee<span id="projectnumber">&#160;5.3.0</span>
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  <div class="headertitle"><div class="title">Builtin tags and filters. </div></div>
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<div class="textblock"><h1><a class="anchor" id="django_builtins"></a>
Tags and filters ported from Django</h1>
<p >See the <a href="https://docs.djangoproject.com/en/1.9/ref/templates/builtins/">Builtins documentation for Django 1.9</a> for an overview of the builtin tags and filters available in Grantlee. Almost all tags and filter in django are available in Grantlee. Exceptions are <a href="https://docs.djangoproject.com/en/1.9/ref/templates/builtins/#url">the <code>url tag</code></a>, because Grantlee does not have a views system. Additionally the <code>ssi</code> tag is disabled because of potential security risks. The <code>dictdort</code>, <code>dictsortreversed</code>, <code>filesizeformat</code>, <code>iriencode</code>, <code>phone2numeric</code>, <code>pluralize</code>, <code>pprint</code>, <code>title</code>, <code>truncatewords_html</code>, <code>urlencode</code>, <code>urlize</code> and <code>urlizetrunc</code> filters have not yet been ported due to time constraints.</p>
<h1><a class="anchor" id="grantlee_extras"></a>
Additional tags available in Grantlee</h1>
<p >Grantlee also provides some extra tags not available in Django.</p>
<h2><a class="anchor" id="media_finder_tag"></a>
media_finder</h2>
<p >Queries Grantlee for a complete URL, given a target name.</p>
<p >This tag can typically be used to insert a URL for an image, external script or CSS file, or other external media.</p>
<div class="fragment"><div class="line">&lt;img src=<span class="stringliteral">&quot;{% media_finder &quot;</span>someimage.png<span class="stringliteral">&quot; %}&quot;</span> /&gt;</div>
</div><!-- fragment --><p >The <code>media_finder</code> tag retrieves the result through <a class="el" href="classGrantlee_1_1Engine.html#aaef46aa64aa7d5b0fac995998c0e501b">Engine::mediaUri</a>, which in turn queries the TemplateLoaders for the URL to return via the <a class="el" href="classGrantlee_1_1AbstractTemplateLoader.html#a740626bf11c87c075370df13c84a6998">AbstractTemplateLoader::getMediaUri</a> interface.</p>
<p >It is possible to configure whether absolute or relative urls are created by using the <a class="el" href="classGrantlee_1_1Context.html#a6de6e0d43c3ba595c9d96494692a944c">Context::setUrlType</a> method. If the path to external media is not the same as the path to the template, the <a class="el" href="classGrantlee_1_1Context.html#a283ede44a1f7329a9dd9822d39551a98">Context::setRelativeMediaPath</a> method can be used to specify a relative base path. For example, if creating a template <code>/home/user/myoutput.html</code> which references <code>someimage.png</code>, the path <code>"myoutput_media/"</code> can be set so that the <code>{%&#160;media_finder&#160;%}</code> puts the path <code>myoutput_media/someimage.png</code> into the template. This way the output and the media it references are portable together.</p>
<p >It is the responsibility of the caller to copy the media to the <code>/home/user/myoutput_media/</code> directory.</p>
<p >with <code>media_prefix</code> defined to nothing when creating output with absolute urls, and something like <code>"media/"</code> if creating output with relative urls and external media should be available in the <code>media/</code> subdirectory.</p>
<h2><a class="anchor" id="range_tag"></a>
range</h2>
<p >Loops over a range in a manner similar to the <a href="http://docs.python.org/library/functions.html#range">python builtin of the same name</a>.</p>
<p >Create a list from 0 to 5: </p><div class="fragment"><div class="line">&lt;ul&gt;</div>
<div class="line">{% range 5 as num %}</div>
<div class="line">  &lt;li&gt;{{ num }}</div>
<div class="line">{% endrange %}</div>
<div class="line">&lt;/ul&gt;</div>
</div><!-- fragment --><p >Create a list from 5 to 10: </p><div class="fragment"><div class="line">&lt;ul&gt;</div>
<div class="line">{% range 5 10 as num %}</div>
<div class="line">  &lt;li&gt;{{ num }}</div>
<div class="line">{% endrange %}</div>
<div class="line">&lt;/ul&gt;</div>
</div><!-- fragment --><p >Create a list from 5 to 50 with a step of 5: </p><div class="fragment"><div class="line">&lt;ul&gt;</div>
<div class="line">{% range 5 50 5 as num %}</div>
<div class="line">  &lt;li&gt;{{ num }}</div>
<div class="line">{% endrange %}</div>
<div class="line">&lt;/ul&gt;</div>
</div><!-- fragment --><p >The range tag can also be used without arguments:</p>
<div class="fragment"><div class="line">{% range rating %}</div>
<div class="line">  &lt;img src=<span class="stringliteral">&quot;{% media_finder &quot;</span>star.png<span class="stringliteral">&quot; %}&quot;</span> /&gt;</div>
<div class="line">{% endrange %}</div>
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