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<div class="section" id="frequently-asked-questions">
<h1>Frequently Asked Questions<a class="headerlink" href="#frequently-asked-questions" title="Permalink to this headline">¶</a></h1>
<p>What is the relationship between <tt class="docutils literal"><span class="pre">Dashboards</span></tt>, <tt class="docutils literal"><span class="pre">Panels</span></tt>, and navigation?</p>
<blockquote>
<div><p>The navigational structure is strongly encouraged to flow from
<tt class="docutils literal"><span class="pre">Dashboard</span></tt> objects as top-level navigation items to <tt class="docutils literal"><span class="pre">Panel</span></tt> objects as
sub-navigation items as in the current implementation. Template tags
are provided to automatically generate this structure.</p>
<p>That said, you are not required to use the provided tools and can write
templates and URLconfs by hand to create any desired structure.</p>
</div></blockquote>
<p>Does a panel have to be an app in <tt class="docutils literal"><span class="pre">INSTALLED_APPS</span></tt>?</p>
<blockquote>
<div>A panel can live in any Python module. It can be a standalone which ties
into an existing dashboard, or it can be contained alongside others within
a larger dashboard “app”. There is no strict enforcement here. Python
is “a language for consenting adults.” A module containing a Panel does
not need to be added to <tt class="docutils literal"><span class="pre">INSTALLED_APPS</span></tt>, but this is a common and
convenient way to load a standalone panel.</div></blockquote>
<p>Could I hook an external service into a panel using, for example, an iFrame?</p>
<blockquote>
<div>Panels are just entry-points to hook views into the larger dashboard
navigational structure and enforce common attributes like RBAC. The
view and corresponding templates can contain anything you would like,
including iFrames.</div></blockquote>
<p>What does this mean for visual design?</p>
<blockquote>
<div>The ability to add an arbitrary number of top-level navigational items
(<tt class="docutils literal"><span class="pre">Dashboard</span></tt> objects) poses a new design challenge. Horizon’s lead
designer has taken on the challenge of providing a reference design
for Horizon which supports this possibility.</div></blockquote>
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