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762 lines
23 KiB
762 lines
23 KiB
<?php
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/* For licensing terms, see /license.txt */
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use Doctrine\Common\Annotations\AnnotationRegistry;
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use Doctrine\DBAL\Connection;
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use Doctrine\DBAL\Driver\Statement;
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use Doctrine\DBAL\Types\Type;
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use Doctrine\ORM\EntityManager;
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/**
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* Class Database
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*/
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class Database
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{
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/**
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* @var EntityManager
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*/
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private static $em;
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private static $connection;
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public static $utcDateTimeClass;
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/**
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* @param EntityManager $em
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*/
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public function setManager($em)
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{
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self::$em = $em;
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}
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/**
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* @param Connection $connection
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*/
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public function setConnection(Connection $connection)
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{
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self::$connection = $connection;
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}
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/**
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* @return Connection
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*/
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public function getConnection()
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{
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return self::$connection;
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}
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/**
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* @return EntityManager
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*/
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public static function getManager()
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{
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return self::$em;
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}
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/**
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* Returns the name of the main database.
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*
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* @return string
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*/
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public static function get_main_database()
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{
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return self::getManager()->getConnection()->getDatabase();
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}
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/**
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* Get main table
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*
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* @param string $table
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*
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* @return string
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*/
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public static function get_main_table($table)
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{
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return $table;
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}
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/**
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* Get course table
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*
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* @param string $table
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*
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* @return string
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*/
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public static function get_course_table($table)
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{
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return DB_COURSE_PREFIX.$table;
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}
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/**
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* Counts the number of rows in a table
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* @param string $table The table of which the rows should be counted
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*
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* @return int The number of rows in the given table.
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* @deprecated
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*/
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public static function count_rows($table)
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{
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$obj = self::fetch_object(self::query("SELECT COUNT(*) AS n FROM $table"));
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return $obj->n;
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}
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/**
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* Returns the number of affected rows in the last database operation.
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* @param Statement $result
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*
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* @return int
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*/
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public static function affected_rows(Statement $result)
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{
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return $result->rowCount();
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}
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/**
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* @return string
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*/
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public static function getUTCDateTimeTypeClass()
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{
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return isset(self::$utcDateTimeClass) ? self::$utcDateTimeClass : 'Application\DoctrineExtensions\DBAL\Types\UTCDateTimeType';
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}
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/**
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* Connect to the database sets the entity manager.
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*
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* @param array $params
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* @param string $sysPath
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* @param string $entityRootPath
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* @param bool $returnConnection
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* @param bool $returnManager
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*
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* @throws \Doctrine\ORM\ORMException
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*
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* @return
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*/
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public function connect(
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$params = array(),
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$sysPath = '',
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$entityRootPath = '',
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$returnConnection = false,
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$returnManager = false
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) {
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$config = self::getDoctrineConfig($entityRootPath);
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$config->setAutoGenerateProxyClasses(true);
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$config->setEntityNamespaces(
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array(
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'ChamiloPageBundle' => 'Chamilo\PageBundle\Entity',
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'ChamiloUserBundle' => 'Chamilo\UserBundle\Entity',
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'ChamiloCoreBundle' => 'Chamilo\CoreBundle\Entity',
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'ChamiloCourseBundle' => 'Chamilo\CourseBundle\Entity',
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'ChamiloSkillBundle' => 'Chamilo\SkillBundle\Entity',
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'ChamiloTicketBundle' => 'Chamilo\TicketBundle\Entity',
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'ChamiloPluginBundle' => 'Chamilo\PluginBundle\Entity'
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)
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);
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$params['charset'] = 'utf8';
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$entityManager = EntityManager::create($params, $config);
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$sysPath = !empty($sysPath) ? $sysPath : api_get_path(SYS_PATH);
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$uniqueEntityPath = $sysPath.'vendor/symfony/symfony/src/Symfony/Bridge/Doctrine/Validator/Constraints/UniqueEntity.php';
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// Folder symfony/symfony/src doesn't exists in chash use the component folder
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if (!file_exists($uniqueEntityPath)) {
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$uniqueEntityPath = $sysPath.'vendor/symfony/doctrine-bridge/Validator/Constraints/UniqueEntity.php';
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AnnotationRegistry::registerLoader(
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function ($class) use ($sysPath) {
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$file = str_replace("\\", DIRECTORY_SEPARATOR, $class).".php";
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$file = str_replace('Symfony/Component/Validator', '', $file);
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$file = $sysPath.'vendor/symfony/validator'.$file;
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if (file_exists($file)) {
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// file exists makes sure that the loader fails silently
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require_once $file;
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return true;
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}
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}
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);
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} else {
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// Registering Constraints
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AnnotationRegistry::registerAutoloadNamespace(
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'Symfony\Component\Validator\Constraint',
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$sysPath.'vendor/symfony/symfony/src'
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);
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}
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AnnotationRegistry::registerFile(
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$uniqueEntityPath
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);
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// Registering gedmo extensions
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AnnotationRegistry::registerAutoloadNamespace(
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'Gedmo\Mapping\Annotation',
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$sysPath."vendor/gedmo/doctrine-extensions/lib"
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);
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Type::overrideType(
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Type::DATETIME,
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self::getUTCDateTimeTypeClass()
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);
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$listener = new \Gedmo\Timestampable\TimestampableListener();
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$entityManager->getEventManager()->addEventSubscriber($listener);
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$listener = new \Gedmo\Tree\TreeListener();
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$entityManager->getEventManager()->addEventSubscriber($listener);
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$listener = new \Gedmo\Sortable\SortableListener();
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$entityManager->getEventManager()->addEventSubscriber($listener);
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$connection = $entityManager->getConnection();
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$connection->executeQuery('SET sql_mode = "";');
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if ($returnConnection) {
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return $connection;
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}
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if ($returnManager) {
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return $entityManager;
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}
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$this->setConnection($connection);
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$this->setManager($entityManager);
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}
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/**
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* Escape MySQL wildchars _ and % in LIKE search
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* @param string $text The string to escape
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*
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* @return string The escaped string
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*/
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public static function escape_sql_wildcards($text)
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{
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$text = api_preg_replace("/_/", "\_", $text);
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$text = api_preg_replace("/%/", "\%", $text);
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return $text;
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}
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/**
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* Escapes a string to insert into the database as text
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*
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* @param string $string
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*
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* @return string
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*/
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public static function escape_string($string)
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{
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$string = self::getManager()->getConnection()->quote($string);
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// The quote method from PDO also adds quotes around the string, which
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// is not how the legacy mysql_real_escape_string() was used in
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// Chamilo, so we need to remove the quotes around. Using trim will
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// remove more than one quote if they are sequenced, generating
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// broken queries and SQL injection risks
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return substr($string, 1, -1);
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}
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/**
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* Gets the array from a SQL result (as returned by Database::query)
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*
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* @param Statement $result
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* @param string $option Optional: "ASSOC","NUM" or "BOTH"
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*
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* @return array|mixed
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*/
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public static function fetch_array(Statement $result, $option = 'BOTH')
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{
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if ($result === false) {
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return array();
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}
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return $result->fetch(self::customOptionToDoctrineOption($option));
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}
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/**
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* Gets an associative array from a SQL result (as returned by Database::query).
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*
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* @param Statement $result
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*
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* @return array
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*/
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public static function fetch_assoc(Statement $result)
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{
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return $result->fetch(PDO::FETCH_ASSOC);
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}
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/**
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* Gets the next row of the result of the SQL query
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* (as returned by Database::query) in an object form
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*
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* @param Statement $result
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*
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* @return mixed
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*/
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public static function fetch_object(Statement $result)
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{
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return $result->fetch(PDO::FETCH_OBJ);
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}
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/**
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* Gets the array from a SQL result (as returned by Database::query)
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* help achieving database independence
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*
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* @param Statement $result
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*
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* @return mixed
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*/
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public static function fetch_row(Statement $result)
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{
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if ($result === false) {
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return array();
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}
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return $result->fetch(PDO::FETCH_NUM);
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}
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/**
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* Frees all the memory associated with the provided result identifier.
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* @return boolean|null Returns TRUE on success or FALSE on failure.
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* Notes: Use this method if you are concerned about how much memory is being used for queries that return large result sets.
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* Anyway, all associated result memory is automatically freed at the end of the script's execution.
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*/
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public static function free_result(Statement $result)
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{
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$result->closeCursor();
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}
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/**
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* Gets the ID of the last item inserted into the database
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*
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* @return string
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*/
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public static function insert_id()
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{
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return self::getManager()->getConnection()->lastInsertId();
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}
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/**
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* @param Statement $result
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*
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* @return int
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*/
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public static function num_rows(Statement $result)
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{
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if ($result === false) {
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return 0;
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}
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return $result->rowCount();
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}
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/**
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* Acts as the relative *_result() function of most DB drivers and fetches a
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* specific line and a field
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*
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* @param Statement $resource
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* @param int $row
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* @param string $field
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*
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* @return mixed
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*/
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public static function result(Statement $resource, $row, $field = '')
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{
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if ($resource->rowCount() > 0) {
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$result = $resource->fetchAll(PDO::FETCH_BOTH);
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return $result[$row][$field];
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}
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}
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/**
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* @param string $query
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*
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* @return Statement
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*
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* @throws \Doctrine\DBAL\DBALException
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*/
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public static function query($query)
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{
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$connection = self::getManager()->getConnection();
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if (api_get_setting('server_type') == 'test') {
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$result = $connection->executeQuery($query);
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} else {
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try {
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$result = $connection->executeQuery($query);
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} catch (Exception $e) {
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error_log($e->getMessage());
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api_not_allowed(false, get_lang('GeneralError'));
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}
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}
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return $result;
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}
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/**
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* @param string $option
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*
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* @return int
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*/
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public static function customOptionToDoctrineOption($option)
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{
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switch ($option) {
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case 'ASSOC':
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return PDO::FETCH_ASSOC;
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break;
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case 'NUM':
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return PDO::FETCH_NUM;
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break;
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case 'BOTH':
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default:
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return PDO::FETCH_BOTH;
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break;
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}
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}
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/**
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* Stores a query result into an array.
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*
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* @author Olivier Brouckaert
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* @param Statement $result - the return value of the query
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* @param string $option BOTH, ASSOC, or NUM
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*
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* @return array - the value returned by the query
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*/
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public static function store_result(Statement $result, $option = 'BOTH')
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{
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return $result->fetchAll(self::customOptionToDoctrineOption($option));
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}
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/**
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* Database insert
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* @param string $table_name
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* @param array $attributes
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* @param bool $show_query
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*
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* @return false|int
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*/
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public static function insert($table_name, $attributes, $show_query = false)
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{
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if (empty($attributes) || empty($table_name)) {
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return false;
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}
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$params = array_keys($attributes);
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if (!empty($params)) {
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$sql = 'INSERT INTO '.$table_name.' ('.implode(',', $params).')
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VALUES (:'.implode(', :', $params).')';
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$statement = self::getManager()->getConnection()->prepare($sql);
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$result = $statement->execute($attributes);
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if ($show_query) {
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var_dump($sql);
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error_log($sql);
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}
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if ($result) {
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return (int) self::getManager()->getConnection()->lastInsertId();
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}
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}
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return false;
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}
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/**
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* @param string $tableName use Database::get_main_table
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* @param array $attributes Values to updates
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* Example: $params['name'] = 'Julio'; $params['lastname'] = 'Montoya';
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* @param array $whereConditions where conditions i.e array('id = ?' =>'4')
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* @param bool $showQuery
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*
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* @return bool|int
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*/
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public static function update(
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$tableName,
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$attributes,
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$whereConditions = array(),
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$showQuery = false
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) {
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if (!empty($tableName) && !empty($attributes)) {
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$updateSql = '';
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$count = 1;
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foreach ($attributes as $key => $value) {
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if ($showQuery) {
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echo $key.': '.$value.PHP_EOL;
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}
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$updateSql .= "$key = :$key ";
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if ($count < count($attributes)) {
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$updateSql .= ', ';
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}
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$count++;
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}
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if (!empty($updateSql)) {
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//Parsing and cleaning the where conditions
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$whereReturn = self::parse_where_conditions($whereConditions);
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$sql = "UPDATE $tableName SET $updateSql $whereReturn ";
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$statement = self::getManager()->getConnection()->prepare($sql);
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$result = $statement->execute($attributes);
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if ($showQuery) {
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var_dump($sql);
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var_dump($attributes);
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var_dump($whereConditions);
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}
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if ($result) {
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return $statement->rowCount();
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}
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}
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}
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return false;
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}
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/**
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* Experimental useful database finder
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* @todo lot of stuff to do here
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* @todo known issues, it doesn't work when using LIKE conditions
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* @example array('where'=> array('course_code LIKE "?%"'))
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* @example array('where'=> array('type = ? AND category = ?' => array('setting', 'Plugins'))
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* @example array('where'=> array('name = "Julio" AND lastname = "montoya"'))
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* @param array $columns
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* @param string $table_name
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* @param array $conditions
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* @param string $type_result
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* @param string $option
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* @param bool $debug
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*
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* @return array
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*/
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public static function select(
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$columns,
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$table_name,
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$conditions = array(),
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$type_result = 'all',
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$option = 'ASSOC',
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$debug = false
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) {
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$conditions = self::parse_conditions($conditions);
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//@todo we could do a describe here to check the columns ...
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if (is_array($columns)) {
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$clean_columns = implode(',', $columns);
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} else {
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if ($columns == '*') {
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$clean_columns = '*';
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} else {
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$clean_columns = (string) $columns;
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}
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}
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$sql = "SELECT $clean_columns FROM $table_name $conditions";
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if ($debug) {
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var_dump($sql);
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}
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$result = self::query($sql);
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$array = array();
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if ($type_result === 'all') {
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while ($row = self::fetch_array($result, $option)) {
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if (isset($row['id'])) {
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$array[$row['id']] = $row;
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} else {
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$array[] = $row;
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}
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}
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} else {
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$array = self::fetch_array($result, $option);
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}
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return $array;
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}
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/**
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* Parses WHERE/ORDER conditions i.e array('where'=>array('id = ?' =>'4'), 'order'=>'id DESC')
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* @todo known issues, it doesn't work when using
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* LIKE conditions example: array('where'=>array('course_code LIKE "?%"'))
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* @param array $conditions
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* @return string Partial SQL string to add to longer query
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*/
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public static function parse_conditions($conditions)
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{
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if (empty($conditions)) {
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return '';
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}
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$return_value = $where_return = '';
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foreach ($conditions as $type_condition => $condition_data) {
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if ($condition_data == false) {
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continue;
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}
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$type_condition = strtolower($type_condition);
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switch ($type_condition) {
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case 'where':
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foreach ($condition_data as $condition => $value_array) {
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if (is_array($value_array)) {
|
|
$clean_values = array();
|
|
foreach ($value_array as $item) {
|
|
$item = self::escape_string($item);
|
|
$clean_values[] = $item;
|
|
}
|
|
} else {
|
|
$value_array = self::escape_string($value_array);
|
|
$clean_values = $value_array;
|
|
}
|
|
|
|
if (!empty($condition) && $clean_values != '') {
|
|
$condition = str_replace('%', "'@percentage@'", $condition); //replace "%"
|
|
$condition = str_replace("'?'", "%s", $condition);
|
|
$condition = str_replace("?", "%s", $condition);
|
|
|
|
$condition = str_replace("@%s@", "@-@", $condition);
|
|
$condition = str_replace("%s", "'%s'", $condition);
|
|
$condition = str_replace("@-@", "@%s@", $condition);
|
|
|
|
// Treat conditions as string
|
|
$condition = vsprintf($condition, $clean_values);
|
|
$condition = str_replace('@percentage@', '%', $condition); //replace "%"
|
|
$where_return .= $condition;
|
|
}
|
|
}
|
|
|
|
if (!empty($where_return)) {
|
|
$return_value = " WHERE $where_return";
|
|
}
|
|
break;
|
|
case 'order':
|
|
$order_array = $condition_data;
|
|
|
|
if (!empty($order_array)) {
|
|
// 'order' => 'id desc, name desc'
|
|
$order_array = self::escape_string($order_array, null, false);
|
|
$new_order_array = explode(',', $order_array);
|
|
$temp_value = array();
|
|
|
|
foreach ($new_order_array as $element) {
|
|
$element = explode(' ', $element);
|
|
$element = array_filter($element);
|
|
$element = array_values($element);
|
|
|
|
if (!empty($element[1])) {
|
|
$element[1] = strtolower($element[1]);
|
|
$order = 'DESC';
|
|
if (in_array($element[1], array('desc', 'asc'))) {
|
|
$order = $element[1];
|
|
}
|
|
$temp_value[] = $element[0].' '.$order.' ';
|
|
} else {
|
|
//by default DESC
|
|
$temp_value[] = $element[0].' DESC ';
|
|
}
|
|
}
|
|
if (!empty($temp_value)) {
|
|
$return_value .= ' ORDER BY '.implode(', ', $temp_value);
|
|
}
|
|
}
|
|
break;
|
|
case 'limit':
|
|
$limit_array = explode(',', $condition_data);
|
|
if (!empty($limit_array)) {
|
|
if (count($limit_array) > 1) {
|
|
$return_value .= ' LIMIT '.intval($limit_array[0]).' , '.intval($limit_array[1]);
|
|
} else {
|
|
$return_value .= ' LIMIT '.intval($limit_array[0]);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
return $return_value;
|
|
}
|
|
|
|
/**
|
|
* @param array $conditions
|
|
*
|
|
* @return string
|
|
*/
|
|
public static function parse_where_conditions($conditions)
|
|
{
|
|
return self::parse_conditions(array('where' => $conditions));
|
|
}
|
|
|
|
/**
|
|
* @param string $table_name
|
|
* @param array $where_conditions
|
|
* @param bool $show_query
|
|
*
|
|
* @return int
|
|
*/
|
|
public static function delete($table_name, $where_conditions, $show_query = false)
|
|
{
|
|
$where_return = self::parse_where_conditions($where_conditions);
|
|
$sql = "DELETE FROM $table_name $where_return ";
|
|
if ($show_query) { echo $sql; echo '<br />'; }
|
|
$result = self::query($sql);
|
|
$affected_rows = self::affected_rows($result);
|
|
//@todo should return affected_rows for
|
|
return $affected_rows;
|
|
}
|
|
|
|
/**
|
|
* Get Doctrine configuration
|
|
* @param string $path
|
|
*
|
|
* @return \Doctrine\ORM\Configuration
|
|
*/
|
|
public static function getDoctrineConfig($path)
|
|
{
|
|
$isDevMode = true; // Forces doctrine to use ArrayCache instead of apc/xcache/memcache/redis
|
|
$isSimpleMode = false; // related to annotations @Entity
|
|
$cache = null;
|
|
$path = !empty($path) ? $path : api_get_path(SYS_PATH);
|
|
|
|
$paths = array(
|
|
//$path.'src/Chamilo/ClassificationBundle/Entity',
|
|
//$path.'src/Chamilo/MediaBundle/Entity',
|
|
$path.'src/PageBundle/Entity',
|
|
$path.'src/CoreBundle/Entity',
|
|
$path.'src/UserBundle/Entity',
|
|
$path.'src/CourseBundle/Entity',
|
|
$path.'src/TicketBundle/Entity',
|
|
$path.'src/SkillBundle/Entity',
|
|
$path.'src/PluginBundle/Entity',
|
|
//$path.'vendor/sonata-project/user-bundle/Entity',
|
|
//$path.'vendor/sonata-project/user-bundle/Model',
|
|
//$path.'vendor/friendsofsymfony/user-bundle/FOS/UserBundle/Entity',
|
|
);
|
|
|
|
$proxyDir = $path.'var/cache/';
|
|
|
|
$config = \Doctrine\ORM\Tools\Setup::createAnnotationMetadataConfiguration(
|
|
$paths,
|
|
$isDevMode,
|
|
$proxyDir,
|
|
$cache,
|
|
$isSimpleMode
|
|
);
|
|
|
|
return $config;
|
|
}
|
|
|
|
/**
|
|
* @param string $table
|
|
*
|
|
* @return bool
|
|
*/
|
|
public static function tableExists($table)
|
|
{
|
|
return self::getManager()->getConnection()->getSchemaManager()->tablesExist($table);
|
|
}
|
|
|
|
/**
|
|
* @param string $table
|
|
* @return \Doctrine\DBAL\Schema\Column[]
|
|
*/
|
|
public static function listTableColumns($table)
|
|
{
|
|
return self::getManager()->getConnection()->getSchemaManager()->listTableColumns($table);
|
|
}
|
|
}
|
|
|