lektor-website/docs/api/db/query/request-page/index.html

341 lines
11 KiB
HTML

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<link rel="stylesheet" href="../../../../../static/styles.css?h=dff0aaad">
<link rel="stylesheet" href="../../../../../static/pygments.css">
<link rel="shortcut icon" href="../../../../../static/favicon.png?h=fa09bedd">
<title>request_page | Documentation | Lektor Static Content Management System</title>
</head>
<body class="default">
<nav class="navbar navbar-inverse navbar-static-top">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed"
data-toggle="collapse" data-target="#navbar"
aria-expanded="false" aria-controls="navbar">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="../../../../../">Lektor</a>
</div>
<div id="navbar" class="collapse navbar-collapse">
<ul class="nav navbar-nav">
<li><a href="../../../../../downloads/">Download</a></li>
<li class="active"><a href="../../../../">Documentation</a></li>
<li><a href="../../../../../showcase/">Showcase</a></li>
<li><a href="../../../../../plugins/">Plugins</a></li>
<li><a href="../../../../../community/">Community</a></li>
<li><a href="../../../../../blog/">Blog</a></li>
</ul>
</div>
</div>
</nav>
<div class="body-wrapper">
<div class="container">
<div class="row">
<div class="col-sm-3">
<ul class="tree-nav nocontent">
<li><a href="../../../../">Welcome</a></li>
<li><a href="../../../../what/">What is Lektor</a>
<li><a href="../../../../installation/">Installation</a>
<li><a href="../../../../quickstart/">Quickstart</a>
<li><a href="../../../../project/">Project</a>
<li><a href="../../../../content/">Content</a>
<li><a href="../../../../templates/">Templates</a>
<li><a href="../../../../themes/">Themes</a>
<li><a href="../../../../guides/">Guides</a>
<li><a href="../../../../deployment/">Deployment</a>
<li><a href="../../../../plugins/">Plugins</a>
<li><a href="../../../../models/">Data Modelling</a>
<li><a href="../../../../cli/">Command Line</a>
<li><a href="../../../">API</a>
<ul>
<li><a href="../../../build/">Build System</a>
<li><a href="../../../databags/">Databags</a>
<li><a href="../../">Database</a>
<ul>
<li><a href="../../asset/">Asset</a>
<li><a href="../../types/">Builtin Field Types</a>
<li><a href="../../expression/">Expression</a>
<li><a href="../../f/">F</a>
<li><a href="../../get-alts/">get_alts()</a>
<li><a href="../../pad/">Pad</a>
<li><a href="../">Query</a>
<ul>
<li><a href="../all/">all()</a>
<li><a href="../count/">count()</a>
<li><a href="../distinct/">distinct()</a>
<li><a href="../filter/">filter()</a>
<li><a href="../first/">first()</a>
<li><a href="../get/">get()</a>
<li><a href="../include-hidden/">include_hidden()</a>
<li><a href="../include-undiscoverable/">include_undiscoverable()</a>
<li><a href="../limit/">limit()</a>
<li><a href="../offset/">offset()</a>
<li><a href="../order-by/">order_by()</a>
<li class="active"><a href="./">request_page()</a>
<ul></ul>
<li><a href="../self/">self</a>
</ul>
<li><a href="../../record/">Record</a>
<li><a href="../../obj/">SourceObject</a>
<li><a href="../../system-fields/">System Fields</a>
<li><a href="../../type/">Type</a>
</ul>
<li><a href="../../../environment/">Environment</a>
<li><a href="../../../plugins/">Plugins</a>
<li><a href="../../../project/">Project</a>
<li><a href="../../../publisher/">Publisher</a>
<li><a href="../../../templates/">Template API</a>
<li><a href="../../../utils/">Utilities</a>
</ul>
<li><a href="../../../../search/">Search</a>
</ul>
<div class="visible-md-block visible-lg-block">
<h4>This Page</h4>
<ul class="toc">
<li><a href="#example">Example</a></li>
</ul>
</div>
</div>
<div class="col-sm-9 doc-styling">
<h1><i class="glyphicon glyphicon-cog"></i> <code class="obj">request_page</code>
<span class="sig">(<code>page_num</code>)</span></h1>
<ul class=page-meta>
<li>Method of <a href="../">Query</a></li>
</ul>
<p>When pagination is enabled it's often quite useful to select a specific
page of a record that is paginated. When dealing with child records the
default behavior is to return an unpaginated version of the record. With
this parameter it's possible to change this. The parameter is the number
of the page to access.</p>
<p>Truth be told: this method exists mostly for consistency and less because
there is a good reason to use it.</p>
<h2 id="example">Example</h2><div class="hll"><pre><span></span><span class="p">&lt;</span><span class="nt">ul</span><span class="p">&gt;</span>
<span class="cp">{%</span> <span class="k">for</span> <span class="nv">child</span> <span class="k">in</span> <span class="nv">this.children.request_page</span><span class="o">(</span><span class="m">1</span><span class="o">)</span> <span class="cp">%}</span>
<span class="p">&lt;</span><span class="nt">li</span><span class="p">&gt;</span>
Items on the first page of <span class="cp">{{</span> <span class="nv">child.title</span> <span class="cp">}}</span>:
<span class="cp">{{</span> <span class="nv">child.pagination.items.count</span><span class="o">()</span> <span class="cp">}}</span>
<span class="p">&lt;/</span><span class="nt">li</span><span class="p">&gt;</span>
<span class="cp">{%</span> <span class="k">endfor</span> <span class="cp">%}</span>
<span class="p">&lt;/</span><span class="nt">ul</span><span class="p">&gt;</span>
</pre></div>
<div class="comment-box">
<h2>Comments</h2>
<div id="disqus_thread"></div>
<script>
var disqus_config = function() { this.page.identifier = "/docs/api/db/query/request-page"; this.page.url = "https://www.getlektor.com/docs/api/db/query/request-page/"; };
(function() {
var d = document, s = d.createElement('script');
s.src = '//lektordocumentation.disqus.com/embed.js';
s.setAttribute('data-timestamp', +new Date());
(d.head || d.body).appendChild(s);
})();
</script>
<noscript>
Please enable JavaScript to view the <a href="https://disqus.com/?ref_noscript"
rel="nofollow">comments powered by Disqus.</a>
</noscript>
</div>
</div>
</div>
</div>
</div>
<div class="bottomsummary">
<div class="container">
</div>
</div>
<footer>
<div class="container">
<div class="row">
<div class="col-sm-4 icon-bar">
<a href="https://github.com/lektor/lektor/" title="Lektor on GitHub"
><i class="fa fa-github"></i></a>
<a href="https://github.com/lektor/lektor/issues/" title="Report Issues for Lektor"
><i class="fa fa-bug"></i></a>
<a href="https://twitter.com/getlektor" title="Find Lektor on Twitter"
><i class="fa fa-twitter"></i></a>
<a href="https://gitter.im/lektor/lektor" title="Chat on Gitter"
><i class="fa fa-comment"></i></a>
<a href="https://github.com/lektor/lektor-website/tree/master/content/docs/api/db/query/request-page/contents.lr" title="View source for this page"><i class="fa fa-code"></i></a>
</div>
<div class="col-sm-8">
<a href="../../../../../license/">License & Copyright</a>
<a href="../../../../../contact/">Contact</a>
Made with <i class="fa fa-fw fa-heart" title="Heart"><span hidden>Heart</span></i> in Carinthia
</div>
</div>
</div>
</footer>
<script type=text/javascript src="../../../../../static/app.js?h=8b801996" charset="utf-8"></script>
<script>
((window.gitter = {}).chat = {}).options = {
room: 'lektor/lektor',
activationElement: null
};
document.write('<button class="js-gitter-toggle-chat-button">Toggle Chat</button>');
var dnt = navigator.doNotTrack || window.doNotTrack || navigator.msDoNotTrack;
if (dnt != "1" && dnt != "yes") {
window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)};ga.l=+new Date;
ga('create', 'UA-70822533-1', 'auto');
ga('set', 'anonymizeIp', true);
ga('send', 'pageview');
} else {
console.debug("Respecting Do-Not-Track, not running analytics.");
}
</script>
<script async src='https://www.google-analytics.com/analytics.js'></script>
<script async defer id="github-bjs" src="https://buttons.github.io/buttons.js"></script>
<script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0],p=/^http:/.test(d.location)?'http':'https';if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src=p+'://platform.twitter.com/widgets.js';fjs.parentNode.insertBefore(js,fjs);}}(document, 'script', 'twitter-wjs');</script>
<script src="https://sidecar.gitter.im/dist/sidecar.v1.js" async defer></script>
</body>
</html>