120 lines
2.3 KiB
PHP
120 lines
2.3 KiB
PHP
<?php
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class Database
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{
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protected static $pdo = null;
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protected static $queries = [];
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public static function connect($driver, $location, $user, $pass)
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{
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if (self::connected())
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throw new Exception('Database is already connected');
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$dsn = $driver . ':' . $location;
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try
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{
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self::$pdo = new PDO($dsn, $user, $pass);
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self::$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
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self::$pdo->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
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self::$pdo->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);
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}
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catch (Exception $e)
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{
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self::$pdo = null;
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throw $e;
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}
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}
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protected static function convertStatement(SqlStatement $stmt)
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{
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try
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{
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$stmtText = $stmt->getAsString();
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$stmtPdo = self::$pdo->prepare($stmtText);
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foreach ($stmt->getBindings() as $key => $value)
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if (strpos($stmtText, $key) !== false)
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$stmtPdo->bindValue($key, $value);
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}
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catch (Exception $e)
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{
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throw new Exception('Problem with ' . $stmt->getAsString() . ' creation (' . $e->getMessage() . ')');
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}
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return $stmtPdo;
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}
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public static function disconnect()
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{
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self::$pdo = null;
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}
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public static function connected()
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{
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return self::$pdo !== null;
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}
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public static function exec(SqlStatement $stmt)
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{
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if (!self::connected())
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throw new Exception('Database is not connected');
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$stmtPdo = self::convertStatement($stmt);
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try
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{
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$stmtPdo->execute();
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}
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catch (Exception $e)
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{
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throw new Exception('Problem with ' . $stmt->getAsString() . ' execution (' . $e->getMessage() . ')');
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}
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self::$queries []= $stmt;
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return $stmtPdo;
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}
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public static function fetchOne(SqlStatement $stmt)
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{
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$stmtPdo = self::exec($stmt);
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return $stmtPdo->fetch();
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}
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public static function fetchAll(SqlStatement $stmt)
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{
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$stmtPdo = self::exec($stmt);
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return $stmtPdo->fetchAll();
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}
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public static function getLogs()
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{
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return self::$queries;
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}
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public static function inTransaction()
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{
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return self::$pdo->inTransaction();
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}
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public static function lastInsertId()
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{
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return self::$pdo->lastInsertId();
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}
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public static function transaction($func)
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{
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if (self::inTransaction())
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{
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return $func();
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}
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else
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{
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try
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{
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self::$pdo->beginTransaction();
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$ret = $func();
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self::$pdo->commit();
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return $ret;
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}
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catch (Exception $e)
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{
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self::$pdo->rollBack();
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throw $e;
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}
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}
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}
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}
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