TYPO3ContentElements/Classes/ViewHelpers/SkillGroupingViewHelper.php

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<?php
declare(strict_types=1);
namespace SkillDisplay\SkilldisplayContent\ViewHelpers;
/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
use Closure;
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use SkillDisplay\PHPToolKit\Entity\Skill;
use SkillDisplay\PHPToolKit\Entity\SkillSet;
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use TYPO3Fluid\Fluid\Core\Rendering\RenderingContextInterface;
use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractViewHelper;
use TYPO3Fluid\Fluid\Core\ViewHelper\Traits\CompileWithRenderStatic;
/**
* Usage:
*
* <sd:skillGrouping skillSet="{skillSet}" as="domainGroup">
* {domainGroup.title}<br />
* <f:for each="{domainGroup.skills}" as="skill">
* {skill.name}<br />
* </f:for>
* </sd:skillGrouping>
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*/
class SkillGroupingViewHelper extends AbstractViewHelper
{
use CompileWithRenderStatic;
protected $escapeOutput = false;
public function initializeArguments(): void
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{
$this->registerArgument('skills', 'array', 'An array of skills to group', false, []);
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$this->registerArgument('skillSet', SkillSet::class, 'The skills of this skill set will be grouped');
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$this->registerArgument('as', 'string', 'The name of the iteration variable', true);
}
public static function renderStatic(
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array $arguments,
Closure $renderChildrenClosure,
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RenderingContextInterface $renderingContext
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) {
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/** @var Skill[] $skills */
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$skills = $arguments['skills'];
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/** @var SkillSet|null $skillSet */
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$skillSet = $arguments['skillSet'];
$as = $arguments['as'];
if ($skillSet) {
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$groups = self::group($skillSet->getSkills());
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} else {
$groups = self::group($skills);
}
$templateVariableContainer = $renderingContext->getVariableProvider();
$output = '';
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foreach ($groups as $group) {
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$templateVariableContainer->add($as, $group);
$output .= $renderChildrenClosure();
$templateVariableContainer->remove($as);
}
return $output;
}
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/**
* @param Skill[] $skills
* @return array
*/
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protected static function group(array $skills): array
{
$domainTags = [];
foreach ($skills as $skill) {
$domainTags[] = isset($skill->toArray()['domainTag']) ? $skill->toArray()['domainTag']['title'] : "none";
}
$domainTags = array_unique($domainTags);
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$result = [];
foreach ($domainTags as $domainTag) {
$result[] = [
'title' => $domainTag,
'skills' => array_filter($skills, function (Skill $skill) use ($domainTag) {
if (!isset($skill->toArray()['domainTag'])) {
return $domainTag === "none";
}
return $skill->toArray()['domainTag']['title'] === $domainTag;
})
];
}
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return $result;
}
}