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- <div class="section" id="custom-pyams-utilities">
-<span id="utilities"></span><h1>Custom PyAMS utilities<a class="headerlink" href="#custom-pyams-utilities" title="Permalink to this headline">¶</a></h1>
-<p>PyAMS_utils provides a small set of utilities. You can create some of them as global utilities registered in
-the global components registry; other ones can be created manually by a site administrator and
-are then registered automatically.</p>
-<div class="section" id="server-timezone">
-<h2>Server timezone<a class="headerlink" href="#server-timezone" title="Permalink to this headline">¶</a></h2>
-<p>To manage timezones correctly, and display datetimes based on current server timezone, all datetimes should
-be defined and stored in UTC.</p>
-<p>PyAMS_utils provides a <code class="xref py py-class docutils literal"><span class="pre">ServerTimezoneUtility</span></code> which
-allows you to assign a default timezone to your server.</p>
-<p>To display a datetime with correct timezone, you can use the <code class="xref py py-func docutils literal"><span class="pre">tztime</span></code> function,
-which assign server timezone to the given parameter:</p>
-<div class="highlight-python"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">datetime</span> <span class="kn">import</span> <span class="n">datetime</span>
-<span class="kn">from</span> <span class="nn">pyams_utils.timezone</span> <span class="kn">import</span> <span class="n">tztime</span>
-
-<span class="n">now</span> <span class="o">=</span> <span class="n">datetime</span><span class="o">.</span><span class="n">utcnow</span><span class="p">()</span>
-<span class="n">my_date</span> <span class="o">=</span> <span class="n">tztime</span><span class="p">(</span><span class="n">now</span><span class="p">)</span> <span class="c1"># converts *now* to server timezone</span>
-</pre></div>
-</div>
-<p>We could imagine that datetimes could be displayed with current user timezone. But it’s quite impossible to know
-the user timazone from a server request. The only options are:</p>
-<ul class="simple">
-<li>you ask an authenticated user to update a timezone setting in his profile</li>
-<li>you can include Javascript libraries which will try to detect browser timezone from their computer configuration, and
-do an AJAX request to update data in their session.</li>
-</ul>
-<p>That should require an update of <code class="xref py py-func docutils literal"><span class="pre">tzinfo()</span></code> adapter to get timezone info from session, request or user profile.</p>
-</div>
-<div class="section" id="zeo-connection">
-<h2>ZEO connection<a class="headerlink" href="#zeo-connection" title="Permalink to this headline">¶</a></h2>
-<p>Several PyAMS utilities (like the tasks scheduler or the medias converter) are working with dedicated processes,
-are connected to main PyAMS process through ØMQ, and use ZEO connections for their PyAMS database access.</p>
-<p>Clients of these processes have to send settings of the ZEO connections that they should use.</p>
-<p>The ZEOConnection utility can be created by the site manager through the web management interface (ZMI) from the
-<em>Control panel</em>:</p>
-<img alt="_images/zeo-add-menu.png" src="_images/zeo-add-menu.png" />
-<p>ZEO connection creation form allows you to define all settings of a ZEO connection:</p>
-<img alt="_images/zeo-add-form.png" src="_images/zeo-add-form.png" />
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-<li><a class="reference internal" href="#">Custom PyAMS utilities</a><ul>
-<li><a class="reference internal" href="#server-timezone">Server timezone</a></li>
-<li><a class="reference internal" href="#zeo-connection">ZEO connection</a></li>
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