oms-Tasks/Theme/Backend/task-single.tpl.php

<?php
/**
 * Orange Management
 *
 * PHP Version 7.1
 *
 * @category   TBD
 * @package    TBD
 * @author     OMS Development Team <dev@oms.com>
 * @copyright  Dennis Eichhorn
 * @license    OMS License 1.0
 * @version    1.0.0
 * @link       http://orange-management.com
 */
/**
 * @var \phpOMS\Views\View         $this
 * @var \Modules\Tasks\Models\Task $task
 */
$task      = $this->getData('task');
$elements  = $task->getTaskElements();
$cElements = count($elements);

if($task->getStatus() === \Modules\Tasks\Models\TaskStatus::OPEN) { $color = 'darkblue'; }
elseif($task->getStatus() === \Modules\Tasks\Models\TaskStatus::WORKING) { $color = 'purple'; }
elseif($task->getStatus() === \Modules\Tasks\Models\TaskStatus::CANCELED) { $color = 'red'; }
elseif($task->getStatus() === \Modules\Tasks\Models\TaskStatus::SUSPENDED) { $color = 'yellow'; }

echo $this->getData('nav')->render(); ?>

<div class="row">
    <div class="col-xs-12">
        <section class="box wf-100">
            <header><h1><?= $task->getTitle(); ?></h1></header>
            <div class="inner">
                <div class="floatRight">Due <?= $task->getDue()->format('Y-m-d H:i'); ?></div>
                <div>Created <?= $task->getCreatedAt()->format('Y-m-d H:i'); ?></div>
            </div>
            <div class="inner">
                <blockquote>
                    <?= $task->getDescription(); ?>
                </blockquote>
            </div>
            <div class="inner">
                <div class="pAlignTable">
                    <div class="vCenterTable wf-100">Created <?= $task->getCreatedBy()->getName1(); ?></div>
                    <span class="vCenterTable nobreak tag <?= $color; ?>"><?= $this->getText('S' . $task->getStatus()); ?></span>
                </div>
            </div>
        </section>

        <?php $c = 0;
        foreach ($elements as $key => $element) : $c++;
            if($element->getStatus() === \Modules\Tasks\Models\TaskStatus::DONE) { $color = 'green'; }
            elseif($element->getStatus() === \Modules\Tasks\Models\TaskStatus::OPEN) { $color = 'darkblue'; }
            elseif($element->getStatus() === \Modules\Tasks\Models\TaskStatus::WORKING) { $color = 'purple'; }
            elseif($element->getStatus() === \Modules\Tasks\Models\TaskStatus::CANCELED) { $color = 'red'; }
            elseif($element->getStatus() === \Modules\Tasks\Models\TaskStatus::SUSPENDED) { $color = 'yellow'; } ?>
            <section class="box wf-100">
                <div class="inner pAlignTable">
                    <div class="vCenterTable wf-100"><?= $element->getCreatedBy()->getName1(); ?> - <?= $element->getCreatedAt()->format('Y-m-d H:i'); ?></div>
                    <span class="vCenterTable tag <?= $color; ?>"><?= $this->getText('S' . $element->getStatus()); ?></span>
                </div>

            <?php if ($element->getDescription() !== '') : ?>
                    <div class="inner">
                        <blockquote>
                            <?= $element->getDescription(); ?>
                        </blockquote>
                    </div>
            <?php endif; ?>

                <div class="inner pAlignTable">
                <?php if ($element->getForwarded() !== 0) : ?>
                    <div class="vCenterTable wf-100">Forwarded <?= $element->getForwarded()->getName1(); ?></div>
                <?php endif; ?>
                <?php if ($element->getStatus() !== \Modules\Tasks\Models\TaskStatus::CANCELED ||
                    $element->getStatus() !== \Modules\Tasks\Models\TaskStatus::DONE ||
                    $element->getStatus() !== \Modules\Tasks\Models\TaskStatus::SUSPENDED || $c != $cElements
                ) : ?>
                    <div class="vCenterTable nobreak">Due <?= $element->getDue()->format('Y-m-d H:i'); ?></div>
                <?php endif; ?>
            </section>
        <?php endforeach; ?>

        <section class="box wf-100">
            <div class="inner">
                <form id="taskElementCreate" method="POST" action="<?= \phpOMS\Uri\UriFactory::build('{/base}/{/lang}/api/task/element?{?}&csrf={$CSRF}'); ?>">
                    <table class="layout wf-100">
                        <tr><td><label for="iMessage"><?= $this->getText('Message'); ?></label>
                        <tr><td><textarea id="iMessage" name="description"></textarea>
                        <tr><td><label for="iDue"><?= $this->getText('Due'); ?></label>
                        <tr><td><input type="datetime-local" id="iDue" name="due" value="<?= !empty($elements) ? end($elements)->getDue()->format('Y-m-d\TH:i:s') : $task->getDue()->format('Y-m-d\TH:i:s'); ?>">
                        <tr><td><label for="iStatus"><?= $this->getText('Status'); ?></label>
                        <tr><td><select id="iStatus" name="status">
                                    <option value="<?= \Modules\Tasks\Models\TaskStatus::OPEN; ?>" selected>Open
                                    <option value="<?= \Modules\Tasks\Models\TaskStatus::WORKING; ?>">Working
                                    <option value="<?= \Modules\Tasks\Models\TaskStatus::SUSPENDED; ?>">Suspended
                                    <option value="<?= \Modules\Tasks\Models\TaskStatus::CANCELED; ?>">Canceled
                                    <option value="<?= \Modules\Tasks\Models\TaskStatus::DONE; ?>">Done
                                </select>
                        <tr><td><label for="iReceiver"><?= $this->getText('To'); ?></label>
                        <tr><td><input type="text" id="iReceiver" name="forward" value="<?= $this->request->getAccount(); ?>" placeholder="&#xf007; Guest">
                        <tr><td colspan="2"><label for="iMedia"><?= $this->getText('Media'); ?></label>
                        <tr><td><input type="text" id="iMedia" placeholder="&#xf15b; File"><td><button><?= $this->getText('Select'); ?></button>
                        <tr><td colspan="2"><label for="iUpload"><?= $this->getText('Upload'); ?></label>
                        <tr><td><input type="file" id="iUpload" form="fTask"><input form="fTask" type="hidden" name="type"><td>
                        <tr><td><input type="submit" value="<?= $this->getText('Create', 0, 0); ?>"><input type="hidden" name="task" value="<?= $this->request->getData('id') ?>"><input type="hidden" name="type" value="1">
                    </table>
                </form>
            </div>
        </section>
    </div>
</div>