Drop the DateFormat view helper class

The view helper class is no longer in use.

refs #6778

application/views/helpers/DateFormat.php

@@ -1,133 +0,0 @@
-<?php
-/* Icinga Web 2 | (c) 2013-2015 Icinga Development Team | GPLv2+ */
-
-use Icinga\Application\Icinga;
-use Icinga\Util\DateTimeFactory;
-
-/**
- * Helper to format date and time. Utilizes DateTimeFactory to ensure time zone awareness
- *
- * @see DateTimeFactory::create()
- */
-class Zend_View_Helper_DateFormat extends Zend_View_Helper_Abstract
-{
-    /**
-     * Current request
-     *
-     * @var Zend_Controller_Request_Abstract
-     */
-    protected $request;
-
-    /**
-     * Constructor
-     *
-     * Retrieves the request from the application's front controller if not given.
-     *
-     * @param Zend_Controller_Request_Abstract  $request    The request to use
-     */
-    public function __construct(Zend_Controller_Request_Abstract $request = null)
-    {
-        if ($request === null) {
-            $this->request = Icinga::app()->getFrontController()->getRequest();
-        } else {
-            $this->request = $request;
-        }
-    }
-
-    /**
-     * Helper entry point
-     *
-     * @return  $this
-     */
-    public function dateFormat()
-    {
-        return $this;
-    }
-
-    /**
-     * Return date formatted according to given format respecting the user's timezone
-     *
-     * @param   int     $timestamp
-     * @param   string  $format
-     *
-     * @return  string
-     */
-    public function format($timestamp, $format)
-    {
-        $dt = DateTimeFactory::create();
-        if (DateTimeFactory::isUnixTimestamp($timestamp)) {
-            $dt->setTimestamp($timestamp);
-        } else {
-            return $timestamp;
-        }
-
-        return $dt->format($format);
-    }
-
-    /**
-     * Format date according to user's format
-     *
-     * @param   int     $timestamp  A unix timestamp
-     *
-     * @return  string  The formatted date string
-     */
-    public function formatDate($timestamp)
-    {
-        return $this->format($timestamp, $this->getDateFormat());
-    }
-
-    /**
-     * Format time according to user's format
-     *
-     * @param   int     $timestamp  A unix timestamp
-     *
-     * @return  string  The formatted time string
-     */
-    public function formatTime($timestamp)
-    {
-        return $this->format($timestamp, $this->getTimeFormat());
-    }
-
-    /**
-     * Format datetime according to user's format
-     *
-     * @param   int     $timestamp  A unix timestamp
-     * @return  string  The formatted datetime string
-     */
-    public function formatDateTime($timestamp)
-    {
-        return $this->format($timestamp, $this->getDateTimeFormat());
-    }
-
-    /**
-     * Retrieve the user's date format string
-     *
-     * @return  string
-     */
-    public function getDateFormat()
-    {
-        // TODO(mh): Missing localized format (#6077)
-        return 'd/m/Y';
-    }
-
-    /**
-     * Retrieve the user's time format string
-     *
-     * @return  string
-     */
-    public function getTimeFormat()
-    {
-        // TODO(mh): Missing localized format (#6077)
-        return 'g:i A';
-    }
-
-    /**
-     * Retrieve the user's datetime format string
-     *
-     * @return  string
-     */
-    public function getDateTimeFormat()
-    {
-        return $this->getDateFormat() . ' ' . $this->getTimeFormat();
-    }
-}