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NewRecordViewHelper::render()   B

Complexity

Conditions 8
Paths 6

Size

Total Lines 28
Code Lines 17

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
cc 8
eloc 17
nc 6
nop 0
dl 0
loc 28
rs 8.4444
c 0
b 0
f 0
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<?php
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declare(strict_types=1);
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/*
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 * This file is part of the TYPO3 CMS project.
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 *
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 * It is free software; you can redistribute it and/or modify it under
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 * the terms of the GNU General Public License, either version 2
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 * of the License, or any later version.
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 *
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 * For the full copyright and license information, please read the
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 * LICENSE.txt file that was distributed with this source code.
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 *
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 * The TYPO3 project - inspiring people to share!
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 */
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namespace TYPO3\CMS\Backend\ViewHelpers\Link;
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use TYPO3\CMS\Backend\Routing\UriBuilder;
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use TYPO3\CMS\Core\Utility\GeneralUtility;
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use TYPO3Fluid\Fluid\Core\ViewHelper\AbstractTagBasedViewHelper;
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/**
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 * Use this ViewHelper to provide 'create new record' links.
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 * The ViewHelper will pass the command to FormEngine.
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 *
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 * The table argument is mandatory, it decides what record is to be created.
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 *
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 * The pid argument will put the new record on this page, if ``0`` given it will
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 * be placed to the root page.
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 *
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 * The uid argument accepts only negative values. If this is given, the new
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 * record will be placed (by sorting field) behind the record with the uid.
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 * It will end up on the same pid as this given record, so the pid must not
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 * be given explicitly by pid argument.
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 *
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 * An exception will be thrown, if both uid and pid are given.
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 * An exception will be thrown, if the uid argument is not a negative integer.
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 *
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 * To edit records, use the :ref:`<be:link.editRecordViewHelper> <typo3-backend-link-editrecord>`.
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 *
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 * Examples
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 * ========
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 *
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 * Link to create a new record of a_table after record 17 on the same pid::
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 *
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 *    <be:link.newRecord table="a_table" returnUrl="foo/bar" uid="-17"/>
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 *
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 * Output::
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 *
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 *    <a href="/typo3/index.php?route=/record/edit&edit[a_table][-17]=new&returnUrl=foo/bar">
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 *        Edit record
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 *    </a>
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 *
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 * Link to create a new record of a_table on root page::
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 *
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 *    <be:link.newRecord table="a_table" returnUrl="foo/bar""/>
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 *
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 * Output::
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 *
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 *    <a href="/typo3/index.php?route=/record/edit&edit[a_table][]=new&returnUrl=foo/bar">
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 *        Edit record
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 *    </a>
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 *
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 * Link to create a new record of a_table on page 17::
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 *
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 *    <be:link.newRecord table="a_table" returnUrl="foo/bar" pid="17"/>
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 *
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 * Output::
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 *
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 *    <a href="/typo3/index.php?route=/record/edit&edit[a_table][17]=new&returnUrl=foo/bar">
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 *        Edit record
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 *    </a>
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 *
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 * Link to create a new record then return back to the BE module "web_MyextensionList"::
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 *
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 *    <be:link.newRecord table="a_table" returnUrl="{f:be.uri(route: 'web_MyextensionList')}" pid="17">
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 *
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 * Output::
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 *
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 *    <a href="/typo3/index.php?route=/record/edit&edit[a_table][17]=new&returnUrl=/typo3/index.php?route=/module/web/MyextensionList">
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 *        Edit record
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 *    </a>
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 *
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 * Link to create a new record of a_table on page 17 with a default value::
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 *
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 *    <be:link.newRecord table="a_table" returnUrl="foo/bar" pid="17" defaultValues="{a_table: {a_field: 'value'}}">
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 *
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 * Output::
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 *
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 *    <a href="/typo3/index.php?route=/record/edit&edit[a_table][17]=new&returnUrl=foo/bar&defVals[a_table][a_field]=value">
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 *        Edit record
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 *    </a>
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 */
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class NewRecordViewHelper extends AbstractTagBasedViewHelper
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{
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    /**
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     * @var string
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     */
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    protected $tagName = 'a';
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    public function initializeArguments()
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    {
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        parent::initializeArguments();
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        $this->registerUniversalTagAttributes();
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        $this->registerArgument('uid', 'int', 'uid < 0 will insert the record after the given uid', false);
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        $this->registerArgument('pid', 'int', 'the page id where the record will be created', false);
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        $this->registerArgument('table', 'string', 'target database table', true);
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        $this->registerArgument('returnUrl', 'string', 'return to this URL after closing the edit dialog', false, '');
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        $this->registerArgument('defaultValues', 'array', 'default values for fields of the new record', false, []);
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    }
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    /**
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     * @return string
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     * @throws \TYPO3\CMS\Backend\Routing\Exception\RouteNotFoundException
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     */
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    public function render(): string
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    {
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        if ($this->arguments['uid'] && $this->arguments['pid']) {
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            throw new \InvalidArgumentException('Can\'t handle both uid and pid for new records', 1526129969);
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        }
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        if (isset($this->arguments['uid']) && $this->arguments['uid'] >= 0) {
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            throw new \InvalidArgumentException('Uid must be negative integer, ' . $this->arguments['uid'] . ' given', 1526134901);
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        }
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        if (empty($this->arguments['returnUrl'])) {
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            $this->arguments['returnUrl'] = GeneralUtility::getIndpEnv('REQUEST_URI');
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        }
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        $params = [
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            'edit' => [$this->arguments['table'] => [$this->arguments['uid'] ?? $this->arguments['pid'] ?? 0 => 'new']],
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            'returnUrl' => $this->arguments['returnUrl']
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        ];
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        if (is_array($this->arguments['defaultValues']) && $this->arguments['defaultValues'] !== []) {
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            $params['defVals'] = $this->arguments['defaultValues'];
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        }
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        $uriBuilder = GeneralUtility::makeInstance(UriBuilder::class);
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        $uri = (string)$uriBuilder->buildUriFromRoute('record_edit', $params);
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        $this->tag->addAttribute('href', $uri);
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        $this->tag->setContent($this->renderChildren());
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        $this->tag->forceClosingTag(true);
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        return $this->tag->render();
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    }
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}
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