class.ext_update.php

<?php

/*
 * This file is part of the Fab/RssDisplay project under GPLv2 or later.
 *
 * For the full copyright and license information, please read the
 * LICENSE.md file that was distributed with this source code.
 */

/**
 * Updater Script for rss_display
 */
class ext_update {

	public function access() {
		return TRUE;
	}

	public function main() {
		$output[] = $this->updateNewIdentity();

		return sprintf('<ul><li>%s</li></ul>', implode('</li><li>', $output));
	}

	/**
	 * Update new identity.
	 *
	 * @return string
	 */
	public function updateNewIdentity() {

		$condition = "list_type='rss_display_pi1'";
		$rows = $this->getDatabaseConnection()->exec_SELECTgetRows('*', 'tt_content', $condition);
		foreach ($rows as $row) {

			$flexForm = sprintf('<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
<T3FlexForms>
    <data>
        <sheet index="sDEF">
            <language index="lDEF">
                <field index="settings.feedUrl">
                    <value index="vDEF">%s</value>
                </field>
                <field index="settings.numberOfItems">
                    <value index="vDEF">%s</value>
                </field>
                <field index="settings.template">
                    <value index="vDEF">%s</value>
                </field>
                <field index="settings.descriptionLength">
                    <value index="vDEF">%s</value>
                </field>
            </language>
        </sheet>
    </data>
</T3FlexForms>',
				$row['tx_rssdisplay_feed'],
				$row['tx_rssdisplay_quantity'],
				$row['tx_rssdisplay_descriptiondisplay'] == 1 ? 'EXT:rss_display/Resources/Private/Templates/Feed/Show.html' : 'EXT:rss_display/Resources/Private/Templates/Feed/ShowWithoutDescription.html',
				$row['tx_rssdisplay_descriptionlength']
			);

			$values = array(
				'list_type' => 'rssdisplay_pi1',
				'pi_flexform' => $flexForm,
			);

			$this->getDatabaseConnection()->exec_UPDATEquery('tt_content', 'uid=' . intval($row['uid']), $values);
		}

		$result = '<strong>Update plugin signature "rssdisplay_pi1"</strong><br/>';
		$result .= count($rows) . ' row(s) have been updated';
		return $result;
	}

	/**
	 * Return a pointer to the database.
	 *
	 * @return \TYPO3\CMS\Core\Database\DatabaseConnection
	 */
	protected function getDatabaseConnection() {
		return $GLOBALS['TYPO3_DB'];
	}

}