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<title>Sigma example 2: block iteration</title>
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<h1>Σ<sub>template</sub> example 2: block iteration</h1>
<h2>1. Simple block iteration</h2>
<p>Basic <b>parse()</b> example. Filling a list from an array.</p>
<!-- BEGIN list_block -->
<ul>
<!-- BEGIN list -->
<li>{list_item}</li>
<!-- END list -->
</ul>
<!-- END list_block -->
<h2>2. Nested block iteration</h2>
<p>Let's fill a HTML table from a two-dimensional array.</p>
<table border="1">
<!-- BEGIN table_row -->
<tr>
<!-- BEGIN table_cell -->
<td>{table_item}</td>
<!-- END table_cell -->
</tr>
<!-- END table_row -->
</table>
<h2>3. Menu-like structures</h2>
<p>This is used to output a sequence of elements that may have different presentation, consider things like normal and selected elements in menu. The much more complex example is the ITDynamic renderer of HTML_QuickForm.</p>
<ul>
<!-- BEGIN menu -->
<!-- BEGIN menu_normal -->
<li><a href="#{menu_url}">{menu_title}</a></li>
<!-- END menu_normal -->
<!-- BEGIN menu_selected -->
<li><b>{menu_title} (you are here)</b></li>
<!-- END menu_selected -->
<!-- END menu -->
</ul>
<h2>4. Methods to manually control removal of blocks</h2>
<p><b>touchBlock()</b> is used to show the blocks that would be considered empty and therefore will be removed.</p>
<table border="1">
<!-- BEGIN touch_row -->
<tr>
<!-- BEGIN touch_cell -->
<td>{touch_stuff}</td>
<td>{touch_quantity}</td>
<!-- END touch_cell -->
<!-- BEGIN empty_row -->
<td colspan="2">This row is intentionally left blank (and thus should be removed)</td>
<!-- END empty_row -->
</tr>
<!-- END touch_row -->
</table>
<p><b>hideBlock()</b> is used to hide the blocks that would be shown due to their non-empty status, in this case 'edit' links.</p>
<ul>
<!-- BEGIN hide_item -->
<li>{item_title} <!-- BEGIN edit_link --><a href="?edit={item_id}">edit</a><!-- END edit_link --></li>
<!-- END hide_item -->
</ul>
<h2>5. Using get() to move blocks around</h2>
<p>If you need a copy of a block somewhere else in the template...</p>
<p>This is a copy of the block from section 1:</p>
{duplicate}
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distrib
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Mageia
>
5
>
x86_64
>
media
>
core-release
>
by-pkgid
>
d9faca8851758f10126d599e59ad5368
>
files
>
9
