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<?php |
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/** |
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* This file has all the main functions in it that set up the database connection |
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* and initializes the appropriate adapters. |
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* |
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* @package ElkArte Forum |
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* @copyright ElkArte Forum contributors |
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* @license BSD http://opensource.org/licenses/BSD-3-Clause (see accompanying LICENSE.txt file) |
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* |
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* @version 2.0 dev |
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* |
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*/ |
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use ElkArte\Database\AbstractTable; |
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use ElkArte\Database\QueryInterface; |
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/** |
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* Initialize database classes and connection. |
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* |
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* @param string $db_server server name |
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* @param string $db_name database name like forum |
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* @param string $db_user userid to attempt db connection |
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* @param string $db_passwd password of user to attempt db connection |
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* @param string $db_prefix prefix of the database, like elkarte_ |
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* @param array $db_options |
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* @param string $db_type |
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* |
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* @return QueryInterface |
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*/ |
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function elk_db_initiate($db_server, $db_name, $db_user, $db_passwd, $db_prefix, $db_options = array(), $db_type = 'mysql') |
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{ |
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return database(false); |
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} |
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/** |
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* Retrieve existing instance of the active database class. |
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* |
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* @param bool $fatal - Stop the execution or throw an \Exception |
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* @param bool $force - Force the re-creation of the database instance. |
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* If set to true, from that moment onwards the old |
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* instance will be lost and only the new one returned |
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* |
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* @return QueryInterface |
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* @throws \Exception if fatal is false |
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*/ |
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function database($fatal = true, $force = false) |
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{ |
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static $db = null; |
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if ($db === null || $force === true) |
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{ |
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global $db_persist, $db_server, $db_user, $db_passwd, $db_port; |
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global $db_type, $db_name, $db_prefix, $mysql_set_mode; |
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$db_options = [ |
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'persist' => $db_persist, |
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'select_db' => true, |
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'port' => $db_port, |
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'mysql_set_mode' => (bool) ($mysql_set_mode ?? false) |
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]; |
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$type = strtolower($db_type); |
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$type = $type === 'mysql' ? 'mysqli' : $type; |
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/** @var \ElkArte\Database\Mysqli\Connection $class */ |
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$class = '\\ElkArte\\Database\\' . ucfirst($type) . '\\Connection'; |
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try |
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{ |
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$db = $class::initiate($db_server, $db_name, $db_user, $db_passwd, $db_prefix, $db_options); |
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} |
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catch (\Exception $e) |
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{ |
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if ($fatal === true) |
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{ |
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\ElkArte\Errors\Errors::instance()->display_db_error($e->getMessage()); |
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} |
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else |
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{ |
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throw $e; |
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387 |
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} |
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} |
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} |
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return $db; |
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} |
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/** |
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* This function retrieves an existing instance of \ElkArte\AbstractTable |
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* and returns it. |
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* |
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* @param object|null $db - A database object (e.g. \ElkArte\Mysqli\Query) |
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* @param bool $fatal - Stop the execution or throw an \Exception |
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* |
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* @return AbstractTable |
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*/ |
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function db_table($db = null, $fatal = false) |
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{ |
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global $db_prefix, $db_type; |
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static $db_table = null; |
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if ($db_table === null) |
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{ |
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if ($db === null) |
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{ |
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$db = database(); |
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} |
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$db_type = strtolower($db_type); |
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$db_type = $db_type === 'mysql' ? 'mysqli' : $db_type; |
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$class = '\\ElkArte\\Database\\' . ucfirst($db_type) . '\\Table'; |
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try |
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{ |
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$db_table = new $class($db, $db_prefix); |
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} |
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catch (\Exception $e) |
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{ |
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if ($fatal === true) |
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{ |
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\ElkArte\Errors\Errors::instance()->display_db_error($e->getMessage()); |
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} |
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else |
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{ |
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throw $e; |
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} |
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3 |
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} |
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} |
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return $db_table; |
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} |
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/** |
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* This function returns an instance of \ElkArte\AbstractSearch, |
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* specifically designed for database utilities related to search. |
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* |
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* @return \ElkArte\Database\AbstractSearch |
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*/ |
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function db_search() |
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{ |
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global $db_type; |
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static $db_search = null; |
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if ($db_search === null) |
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{ |
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$db = database(); |
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$db_type = strtolower($db_type); |
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$db_type = $db_type === 'mysql' ? 'mysqli' : $db_type; |
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$class = '\\ElkArte\\Database\\' . ucfirst($db_type) . '\\Search'; |
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try |
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{ |
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$db_search = new $class($db); |
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} |
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catch (\Exception $e) |
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{ |
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\ElkArte\Errors\Errors::instance()->display_db_error($e->getMessage()); |
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} |
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} |
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return $db_search; |
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} |
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elkarte /
Elkarte
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This check looks for parameters that have been defined for a function or method, but which are not used in the method body.