0, 'folders' => 0 ); $this->useJemConfig = true; $this->getHeader(); ?>

:

:

".Text::_('COM_JEM_INSTALL_SUCCESS').": ". Text::sprintf('COM_JEM_INSTALL_DIRECTORY_EXISTS_SKIP', $createDirs[0])."

"; } else { echo "

".Text::_('COM_JEM_INSTALL_INFO').": ". Text::sprintf('COM_JEM_INSTALL_DIRECTORY_NOT_EXISTS', $createDirs[0])."

"; echo "

".Text::_('COM_JEM_INSTALL_DIRECTORY_TRY_CREATE').":

"; echo ""; } if($error['folders']) { echo "

".Text::_('COM_JEM_INSTALL_DIRECTORY_CHECK_EXISTANCE')."

"; } echo "

".Text::_('COM_JEM_INSTALL_SETTINGS')."

"; $db = Factory::getContainer()->get('DatabaseDriver'); $query = $db->getQuery(true); $query->select('*')->from('#__jem_config'); $db->setQuery($query); $conf = $db->loadAssocList(); if (count($conf)) { echo "

".Text::_('COM_JEM_INSTALL_SUCCESS').": ". Text::_('COM_JEM_INSTALL_FOUND_SETTINGS')."

"; } echo "

".Text::_('COM_JEM_INSTALL_SUMMARY')."

"; foreach ($error as $k => $v) { if($k != 'summary') { $error['summary'] += $v; } } if($error['summary']) { ?>

"0", "event_comunsolution"=>"0", "event_show_attendeenames"=>"2", "event_show_more_attendeedetails"=>"0", "event_show_author"=>"1", "event_lg"=>"", "event_link_author"=>"1", "event_show_contact"=>"1", "event_link_contact"=>"1", "event_show_description"=>"1", "event_show_detailsadress"=>"1", "event_show_detailstitle"=>"1", "event_show_detlinkvenue"=>"1", "event_show_hits"=>"0", "event_show_locdescription"=>"1", "event_show_mapserv"=>"0", "event_show_print_icon"=>"1", "event_show_email_icon"=>"1", "event_show_ical_icon"=>"1", "event_tld"=>"", "editevent_show_meta_option"=>"0", "editevent_show_attachment_tab"=>"0", "editevent_show_other_tab"=>"0", "global_display"=>"1", "global_regname"=>"1", "global_show_archive_icon"=>"1", "global_show_filter"=>"1", "global_show_email_icon"=>"1", "global_show_ical_icon"=>"1", "global_show_icons"=>"1", "global_show_locdescription"=>"1", "global_show_print_icon"=>"1", "global_show_timedetails"=>"1", "global_show_detailsadress"=>"1", "global_show_detlinkvenue"=>"1", "global_show_listevents"=>"1", "global_show_mapserv"=>"0", "global_tld"=>"", "global_lg"=>"", "global_cleanup_db_on_uninstall"=>"0" ); $this->setGlobalAttribs($param_array); } /** * method to uninstall the component * * @return void */ function uninstall($parent) { $this->getHeader(); ?>

:

useJemConfig = true; // since 2.1.6 $globalParams = $this->getGlobalParams(); $cleanup = $globalParams->get('global_cleanup_db_on_uninstall', 0); if (!empty($cleanup)) { // user decided to fully remove JEM - so do it! $this->removeJemMenuItems(); $this->removeAllJemTables(); $imageDir = JPATH_SITE.'/images/jem'; if (Folder::exists($imageDir)) { Folder::delete($imageDir); } } else { // prevent dead links on frontend $this->disableJemMenuItems(); } } /** * method to update the component * * @return void */ function update($parent) { $this->getHeader(); ?>

:

getManifest()->version); ?>

; newRelease = (string) $parent->manifest->version; if (version_compare(JVERSION, '6.0.0', 'ge') || // J! 6.x NOT supported, but allow alpha/beta !(($current_version >= '4.3' && $devLevel >= '0') || ($current_version >= '4.2' && $devLevel >= '9') || ($current_version == '4.1' && $devLevel >= '5') || ($current_version == '4.0' && $devLevel >= '6') )) { $app->enqueueMessage(Text::_('COM_JEM_PREFLIGHT_WRONG_JOOMLA_VERSION'), 'warning'); return false; } // Minimum required PHP version $minPhpVersion = "8.0.0"; // Abort if PHP release is older than required version if(version_compare(PHP_VERSION, $minPhpVersion, '<')) { $app->enqueueMessage(Text::sprintf('COM_JEM_PREFLIGHT_WRONG_PHP_VERSION', $minPhpVersion, PHP_VERSION), 'warning'); return false; } // abort if the release being installed is not newer than the currently installed version if (strtolower($type) == 'update') { // Installed component version $this->oldRelease = $this->getParam('version'); // Installing component version as per Manifest file // $this->newRelease = $parent->get('manifest')->version; if (version_compare($this->newRelease, $this->oldRelease, 'lt')) { $app->enqueueMessage(Text::sprintf('COM_JEM_PREFLIGHT_INCORRECT_VERSION_SEQUENCE', $this->oldRelease, $this->newRelease), 'warning'); return false; } // Remove obsolete files and folder $this->deleteObsoleteFiles(); // Check columns in database $this->checkColumnsIntoDatabase(); // Verify the data type of 'unregistra_until' in the database if($this->oldRelease < '4.3.1'){ $this->checkUnregistraUntil(); } // Ensure css files are (over)writable $this->makeFilesWritable(); // Initialize schema table if necessary $this->initializeSchema($this->oldRelease); } // $type is the type of change (install, update or discover_install) echo '

' . Text::_('COM_JEM_PREFLIGHT_' . strtoupper($type) . '_TEXT') . '

'; } /** * Method to run after an install/update/uninstall method * (it seams method is not called on uninstall) * * @return void */ function postflight($type, $parent) { // $type is the type of change (install, update or discover_install) echo '

' . Text::_('COM_JEM_POSTFLIGHT_' . strtoupper($type) . '_TEXT') . '

'; if (strtolower($type) == 'update') { // Changes between 2.3.5 -> 4.0 if (version_compare($this->oldRelease, '4.0', 'lt') && version_compare($this->newRelease, '2.3.5', 'gt')) { // change categoriesdetailed view name in menu items $this->updateJem2315(); } } elseif (strtolower($type) == 'install') { $this->fixJemMenuItems(); } } /** * Get a parameter from the manifest file (actually, from the manifest cache). * * @param $name The name of the parameter * * @return The parameter */ public function getParam($name) { $db = Factory::getContainer()->get('DatabaseDriver'); $query = $db->getQuery(true); $query->select('manifest_cache')->from('#__extensions')->where(array("type = 'component'", "element = 'com_jem'")); $db->setQuery($query); $manifest = json_decode($db->loadResult(), true); return $manifest[$name]; } /** * Sets parameter values in the component's row of the extension table * * @param $param_array An array holding the params to store */ private function setParams($param_array) { if (is_array($param_array) && (count($param_array) > 0)) { // read the existing component value(s) $db = Factory::getContainer()->get('DatabaseDriver'); $query = $db->getQuery(true); $query->select('params')->from('#__extensions')->where(array("type = 'component'", "element = 'com_jem'")); $db->setQuery($query); $params = json_decode($db->loadResult(), true); // add the new variable(s) to the existing one(s) foreach ($param_array as $name => $value) { $params[(string) $name] = (string) $value; } // store the combined new and existing values back as a JSON string $paramsString = json_encode($params); $query = $db->getQuery(true); $query->update('#__extensions') ->set('params = '.$db->quote($paramsString)) ->where(array("type = 'component'", "element = 'com_jem'")); $db->setQuery($query); $db->execute(); } } /** * Gets globalattrib values from the settings table * * @return JRegistry object */ private function getGlobalParams() { $registry = new Registry(); try { $db = Factory::getContainer()->get('DatabaseDriver'); $query = $db->getQuery(true); if ($this->useJemConfig) { $query->select('value')->from('#__jem_config') ->where($db->quoteName('keyname') . ' = ' . $db->quote('globalattribs')); } else { $query->select('globalattribs')->from('#__jem_settings')->where('id=1'); } $db->setQuery($query); $registry->loadString($db->loadResult()); } catch (Exception $ex) { } return $registry; } /** * Sets globalattrib values in the settings table * * @param $param_array An array holding the params to store */ private function setGlobalAttribs($param_array) { if (is_array($param_array) && (count($param_array) > 0)) { // read the existing component value(s) $db = Factory::getContainer()->get('DatabaseDriver'); $query = $db->getQuery(true); if ($this->useJemConfig) { $query->select('value')->from('#__jem_config') ->where($db->quoteName('keyname') . ' = ' . $db->quote('globalattribs')); } else { $query->select('globalattribs')->from('#__jem_settings'); } $db->setQuery($query); $params = json_decode($db->loadResult(), true); // add the new variable(s) to the existing one(s) foreach ($param_array as $name => $value) { $params[(string) $name] = (string) $value; } // store the combined new and existing values back as a JSON string $paramsString = json_encode($params); $query = $db->getQuery(true); if ($this->useJemConfig) { $query->update('#__jem_config') ->where($db->quoteName('keyname') . ' = ' . $db->quote('globalattribs')) ->set($db->quoteName('value') . ' = '. $db->quote($paramsString)); } else { $query->update('#__jem_settings') ->set('globalattribs = '.$db->quote($paramsString)); } $db->setQuery($query); $db->execute(); } } /** * Helper method that outputs a short JEM header with logo and text */ private function getHeader() { ?>

get('DatabaseDriver'); // Get extension ID of JEM $query = $db->getQuery(true); $query->select('extension_id')->from('#__extensions')->where(array("type='component'", "element='com_jem'")); $db->setQuery($query); $extensionId = $db->loadResult(); if (!$extensionId) { // This is a fresh installation, return return; } // Check if an entry already exists in schemas table $query = $db->getQuery(true); $query->select('version_id')->from('#__schemas')->where('extension_id = '.$extensionId); $db->setQuery($query); if ($db->loadResult()) { // Entry exists, return return; } // Insert extension ID and old release version number into schemas table $query = $db->getQuery(true); $query->insert('#__schemas') ->columns($db->quoteName(array('extension_id', 'version_id'))) ->values(implode(',', array($extensionId, $db->quote($versionId)))); $db->setQuery($query); $db->execute(); } /** * Remove all JEM menu items. * * @return void */ private function removeJemMenuItems() { // remove all "com_jem..." frontend entries $db = Factory::getContainer()->get('DatabaseDriver'); $query = $db->getQuery(true); $query->delete('#__menu'); $query->where(array('client_id = 0', 'link LIKE "index.php?option=com_jem%"')); $db->setQuery($query); $db->execute(); } /** * Disable all JEM menu items. * (usefull on uninstall to prevent dead links) * * @return void */ private function disableJemMenuItems() { // unpublish all "com_jem..." frontend entries $db = Factory::getContainer()->get('DatabaseDriver'); $query = $db->getQuery(true); $query->update('#__menu'); $query->set('published = 0'); $query->where(array('client_id = 0', 'published > 0', 'link LIKE "index.php?option=com_jem%"')); $db->setQuery($query); $db->execute(); } /** * Fix all JEM menu items by setting new extension id. * (usefull on install to let menu items from older installation refer new extension id) * * @return void */ private function fixJemMenuItems() { // Get (new) extension ID of JEM $db = Factory::getContainer()->get('DatabaseDriver'); $query = $db->getQuery(true); $query->select('extension_id')->from('#__extensions')->where(array("type='component'", "element='com_jem'")); $db->setQuery($query); $newId = $db->loadResult(); if ($newId) { // set compponent id on all "com_jem..." frontend entries $query = $db->getQuery(true); $query->update('#__menu'); $query->set('component_id = ' . $db->quote($newId)); $query->where(array('client_id = 0', 'link LIKE "index.php?option=com_jem%"')); $db->setQuery($query); $db->execute(); } } /** * Remove all obsolete files and folders of previous versions. * * Todo: Enhance the lists on each new version. * * @return void */ private function deleteObsoleteFiles() { $files = array( // obsolete since JEM 4.0.0 '/administrator/components/com_jem/sql/updates/1.9.1.sql', '/administrator/components/com_jem/sql/updates/1.9.2.sql', '/administrator/components/com_jem/sql/updates/1.9.3.sql', '/administrator/components/com_jem/sql/updates/1.9.4.sql', '/administrator/components/com_jem/sql/updates/1.9.5.sql', '/administrator/components/com_jem/sql/updates/1.9.6.sql', '/administrator/components/com_jem/sql/updates/1.9.7.sql', '/administrator/components/com_jem/sql/updates/1.9.8.sql', '/administrator/components/com_jem/sql/updates/1.9.sql', '/administrator/components/com_jem/sql/updates/2.0.0.sql', '/administrator/components/com_jem/sql/updates/2.0.1.sql', '/administrator/components/com_jem/sql/updates/2.0.2.sql', '/administrator/components/com_jem/sql/updates/2.0.3.sql', '/administrator/components/com_jem/sql/updates/2.1.0.sql', '/administrator/components/com_jem/sql/updates/2.1.1.sql', '/administrator/components/com_jem/sql/updates/2.1.2.sql', '/administrator/components/com_jem/sql/updates/2.1.3.sql', '/administrator/components/com_jem/sql/updates/2.1.4.1.sql', '/administrator/components/com_jem/sql/updates/2.1.4.2.sql', '/administrator/components/com_jem/sql/updates/2.1.4.sql', '/administrator/components/com_jem/sql/updates/2.1.5.sql', '/administrator/components/com_jem/sql/updates/2.1.6-dev3.sql', '/administrator/components/com_jem/sql/updates/2.1.6-dev5.sql', '/administrator/components/com_jem/sql/updates/2.1.7-dev1.sql', '/administrator/components/com_jem/sql/updates/2.1.7-dev5.sql', '/administrator/components/com_jem/sql/updates/2.2.0-p1.sql', '/administrator/components/com_jem/sql/updates/2.2.1-dev2.sql', '/administrator/components/com_jem/sql/updates/2.2.3-dev3.sql', '/administrator/components/com_jem/sql/updates/2.3.0-beta2.sql', '/administrator/components/com_jem/sql/updates/2.3.0-dev1.sql', '/administrator/components/com_jem/sql/updates/2.3.1.sql', // remove old langage files with lang prefix '/language/en-GB/en-GB.pkg_jem.sys.ini', '/administrator/components/com_jem/language/en-GB/en-GB.com_jem.ini', '/administrator/components/com_jem/language/en-GB/en-GB.com_jem.sys.ini', '/components/com_jem/language/en-GB/en-GB.com_jem.ini', '/modules/mod_jem_banner/language/en-GB/en-GB.mod_jem_banner.ini', '/modules/mod_jem_banner/language/en-GB/en-GB.mod_jem_banner.sys.ini', '/modules/mod_jem_cal/language/en-GB/en-GB.mod_jem_cal.ini', '/modules/mod_jem_cal/language/en-GB/en-GB.mod_jem_cal.sys.ini', '/modules/mod_jem_jubilee/language/en-GB/en-GB.mod_jem_jubilee.ini', '/modules/mod_jem_jubilee/language/en-GB/en-GB.mod_jem_jubilee.sys.ini', '/modules/mod_jem_teaser/language/en-GB/en-GB.mod_jem_teaser.ini', '/modules/mod_jem_teaser/language/en-GB/en-GB.mod_jem_teaser.sys.ini', '/modules/mod_jem_wide/language/en-GB/en-GB.mod_jem_wide.ini', '/modules/mod_jem_wide/language/en-GB/en-GB.mod_jem_wide.sys.ini', '/modules/mod_jem/language/en-GB/en-GB.mod_jem.ini', '/modules/mod_jem/language/en-GB/en-GB.mod_jem.sys.ini', '/plugins/content/jem/language/en-GB/en-GB.plg_content_jem.ini', '/plugins/content/jem/language/en-GB/en-GB.plg_content_jem.sys.ini', '/plugins/content/jemlistevents/language/en-GB/en-GB.plg_content_jemlistevents.ini', '/plugins/content/jemlistevents/language/en-GB/en-GB.plg_content_jemlistevents.sys.ini', '/plugins/finder/jem/language/en-GB/en-GB.plg_finder_jem.ini', '/plugins/finder/jem/language/en-GB/en-GB.plg_finder_jem.sys.ini', '/plugins/jem/comments/language/en-GB/en-GB.plg_jem_comments.ini', '/plugins/jem/comments/language/en-GB/en-GB.plg_jem_comments.sys.ini', '/plugins/jem/mailer/language/en-GB/en-GB.plg_jem_mailer.ini', '/plugins/jem/mailer/language/en-GB/en-GB.plg_jem_mailer.sys.ini', '/plugins/search/jem/language/en-GB/en-GB.plg_search_jem.ini', '/plugins/search/jem/language/en-GB/en-GB.plg_search_jem.sys.ini', '/administrator/language/en-GB/en-GB.plg_content_jem.ini', '/administrator/language/en-GB/en-GB.plg_content_jem.sys.ini', '/administrator/language/en-GB/en-GB.plg_finder_jem.ini', ); // TODO There is an issue while deleting folders using the ftp mode $folders = array( '/media/com_jem/FontAwesome', '/plugins/quickicon/jemquickicon', ); foreach ($files as $file) { if (File::exists(JPATH_ROOT . $file) && !File::delete(JPATH_ROOT . $file)) { echo Text::sprintf('FILES_JOOMLA_ERROR_FILE_FOLDER', $file).'
'; } } foreach ($folders as $folder) { if (Folder::exists(JPATH_ROOT . $folder) && !Folder::delete(JPATH_ROOT . $folder)) { echo Text::sprintf('FILES_JOOMLA_ERROR_FILE_FOLDER', $folder).'
'; } } } /** * Ensure some columns exist into JEM tables (database) * * @return void */ private function checkColumnsIntoDatabase() { $db = Factory::getContainer()->get('DatabaseDriver'); $query = $db->getQuery(true); // Array the columns to check $columnsToCheck = [ ['table' => '#__jem_categories', 'column' => 'emailacljl', 'definition' => "TINYINT NOT NULL DEFAULT '0' AFTER `email`"], ['table' => '#__jem_register', 'column' => 'places', 'definition' => "INT NOT NULL DEFAULT '1' AFTER `uid`"], ['table' => '#__jem_events', 'column' => 'requestanswer', 'definition' => "TINYINT(1) NOT NULL DEFAULT '0' AFTER `waitinglist`"] ]; // check if the each column exists foreach ($columnsToCheck as $data) { $query = "SHOW COLUMNS FROM " . $data['table'] . " WHERE Field ='" . $data['column'] . "'"; $db->setQuery($query); $result = $db->loadResult(); if (!$result) { // The column does not exist, so add it $alterQuery = "ALTER TABLE " . $data['table'] . " ADD COLUMN " . $data['column'] . " " . $data['definition']; $db->setQuery($alterQuery); $db->execute(); } } } /** * Ensure css files are writable. * (they maybe read-only caused by CSS Manager) * * @return void */ private function makeFilesWritable() { $path = Path::clean(JPATH_ROOT.'/media/com_jem/css'); $files = Folder::files($path, '.*\.css', false, true); // all css files, full path foreach ($files as $fullpath) { if (is_file($fullpath)) { Path::setPermissions($fullpath); } } } /** * Update data items related to datetime format into JEM. * (required when updating/migrating from 2.3.3/5/6 to new version 4.0.0 with support Joomla 4.x or newer) * * @return void */ private function updateJem2315() { // write changed datetime entry '0000-00-00 ...' to null into DB $db = Factory::getContainer()->get('DatabaseDriver'); $query = $db->getQuery(true); //Categories table $query = $db->getQuery(true); $query->update('#__jem_categories'); $query->set("modified_time = null"); $query->where(array("modified_time LIKE '%0000-00-00%'")); $db->setQuery($query); $db->execute(); $query = $db->getQuery(true); $query->update('#__jem_categories'); $query->set("checked_out_time = null"); $query->where(array("checked_out_time LIKE '%0000-00-00%'")); $db->setQuery($query); $db->execute(); $query = $db->getQuery(true); $query->update('#__jem_categories'); $query->set("created_time = now()"); $query->where(array("created_time LIKE '%0000-00-00%'")); $db->setQuery($query); $db->execute(); //Events table $query = $db->getQuery(true); $query->update('#__jem_events'); $query->set("created = now()"); $query->where(array("created LIKE '%0000-00-00%'")); $db->setQuery($query); $db->execute(); $query = $db->getQuery(true); $query->update('#__jem_events'); $query->set("modified = null"); $query->where(array("modified LIKE '%0000-00-00%'")); $db->setQuery($query); $db->execute(); $query = $db->getQuery(true); $query->update('#__jem_events'); $query->set("checked_out_time = null"); $query->where(array("checked_out_time LIKE '%0000-00-00%'")); $db->setQuery($query); $db->execute(); //Groups table $query = $db->getQuery(true); $query->update('#__jem_groups'); $query->set("checked_out_time = null"); $query->where(array("checked_out_time LIKE '%0000-00-00%'")); $db->setQuery($query); $db->execute(); //Venues table $query = $db->getQuery(true); $query->update('#__jem_venues'); $query->set("created = now()"); $query->where(array("created LIKE '%0000-00-00%'")); $db->setQuery($query); $db->execute(); $query = $db->getQuery(true); $query->update('#__jem_venues'); $query->set("modified = null"); $query->where(array("modified LIKE '%0000-00-00%'")); $db->setQuery($query); $db->execute(); $query = $db->getQuery(true); $query->update('#__jem_venues'); $query->set("checked_out_time = null"); $query->where(array("checked_out_time LIKE '%0000-00-00%'")); $db->setQuery($query); $db->execute(); $query = $db->getQuery(true); $query->update('#__jem_venues'); $query->set("publish_up = null"); $query->where(array("publish_up LIKE '%0000-00-00%'")); $db->setQuery($query); $db->execute(); $query = $db->getQuery(true); $query->update('#__jem_venues'); $query->set("publish_down = null"); $query->where(array("publish_down LIKE '%0000-00-00%'")); $db->setQuery($query); $db->execute(); //Attachments table $query = $db->getQuery(true); $query->update('#__jem_attachments'); $query->set("added = null"); $query->where(array("added LIKE '%0000-00-00%'")); $db->setQuery($query); $db->execute(); } /** * Delete JEM update server entry from #__update_sites table. * * @return void */ private function removeUpdateServerEntry() { // Find entry and get id $db = Factory::getContainer()->get('DatabaseDriver'); $query = $db->getQuery(true); $query->select('update_site_id'); $query->from('#__update_sites'); $query->where(array("location LIKE '%joomlaeventmanager.invalid%'")); $db->setQuery($query); $id = $db->loadResult(); if (!empty($id)) { // remove entry $query = $db->getQuery(true); $query->delete('#__update_sites'); $query->where(array('update_site_id = ' . $db->quote($id))); $db->setQuery($query); $db->execute(); // but also from this table $query = $db->getQuery(true); $query->delete('#__update_sites_extensions'); $query->where(array('update_site_id = ' . $db->quote($id))); $db->setQuery($query); $db->execute(); } } /** * Deletes all JEM tables on database if option says so. * * @return void */ private function removeAllJemTables() { $db = Factory::getContainer()->get('DatabaseDriver'); $tables = array('#__jem_attachments', '#__jem_categories', '#__jem_cats_event_relations', '#__jem_countries', '#__jem_events', '#__jem_groupmembers', '#__jem_groups', '#__jem_register', '#__jem_settings', '#__jem_config', '#__jem_venues'); foreach ($tables AS $table) { try { $db->dropTable($table); } catch (Exception $ex) { // simply continue with next table } } } /** * Verify the data type of 'unregistra_until' in the database when JEM version < 4.3.1 * * @return void */ private function checkUnregistraUntil() { $db = Factory::getContainer()->get('DatabaseDriver'); try { $query = "ALTER TABLE `#__jem_events` CHANGE `unregistra_until` `unregistra_until` INT(11) NULL DEFAULT '0'"; $db->setQuery($query); $db->execute(); $query = "UPDATE `#__jem_events` SET `unregistra_until` = NULL WHERE `unregistra_until` = 0"; $db->setQuery($query); $db->execute(); $query = "UPDATE `#__jem_events` SET `unregistra_until` = NULL WHERE `unregistra_until` != 0 AND (times IS NULL OR dates IS NULL)"; $db->setQuery($query); $db->execute(); $query = "ALTER TABLE `#__jem_events` CHANGE `unregistra_until` `unregistra_until` VARCHAR(20) NULL"; $db->setQuery($query); $db->execute(); $query = "UPDATE `#__jem_events` SET `unregistra_until` = DATE_FORMAT(DATE_SUB(CONCAT(`dates`, ' ', `times`), INTERVAL `unregistra_until` HOUR),'%Y-%m-%d %H:%i:%s') WHERE `unregistra_until` != 0 AND `times` IS NOT NULL AND `dates` IS NOT NULL"; $db->setQuery($query); $db->execute(); $query = "ALTER TABLE `#__jem_events` CHANGE `unregistra_until` `unregistra_until` DATETIME DEFAULT NULL"; $db->setQuery($query); $db->execute(); } catch (\Exception $e) { echo "Error updating `unregistra_until`: " . $e->getMessage(); } } }