Data Sources

Icinga Web offers even more nice tools. One thing we still want to examine are the so-called DataSources. We integrate the ArrayDatasource and add another function to our library code:

<?php

use Icinga\Data\DataArray\ArrayDatasource;

// ...

    public static function selectFiles($path)
    {
        $ds = new ArrayDatasource(self::listFiles($path));
        return $ds->select();
    }

Then we also make some little change our controller:

<?php
$query = Directory::selectFiles(
    $this->Module()->getBaseDir()
)->order('type')->order('name');

$this->view->files = $query->fetchAll();

Task 1

Rework the list so that you can sort ascending and descending via mouse click.

Additional task

<?php

$editor = Widget::create('filterEditor')->handleRequest($this->getRequest());
$query->applyFilter($editor->getFilter());

Autorefresh

As a monitoring interface, it goes without saying, that Icinga Web provides a reliable and stable autorefresh functionality. This can be conveniently managed in the controllers:

<?php

$this->setAutorefreshInterval(10);

Task 2

Our file list should update automatically, the detail information panel should as well. Show the last modification date of a file ($file->getMtime()) and use the timeSince helper to display the time. Change a file on the hard drive and see what happens. How can that be explained?