101 lines
2.7 KiB
PHP
101 lines
2.7 KiB
PHP
<?php
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class Db{
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private static $join;
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private static $commandDatabase = array (
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PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
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PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES utf8",
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PDO::ATTR_EMULATE_PREPARES => false
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);
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public static function connect ($host, $user, $password, $database) {
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if (!isset (self::$join)) {
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self::$join = @new PDO(
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"mysql:host=$host;dbname=$database;charset=utf8",
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$user,
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$password,
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self::$commandDatabase
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);
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self::$join->exec ("set names utf8");
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}
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}
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public static function disconect(){
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self::$join = null;
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}
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public static function loadOne ($sql, $values = array (), $numberKey = false) {
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$answer = self::$join->prepare ($sql);
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$answer->execute ($values);
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if (!$numberKey) {
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return $answer->fetch (PDO::FETCH_ASSOC);
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} else {
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return $answer->fetch (PDO::FETCH_NUM);
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}
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}
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public static function command ($sql, $values = array()) {
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$answer = self::$join->prepare ($sql);
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return $answer->execute ($values);
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}
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public static function loadAll ($sql, $values = array(), $numberKey = false) {
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$answer = self::$join->prepare ($sql);
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$answer->execute ($values);
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if (!$numberKey) {
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return $answer->fetchALL (PDO::FETCH_ASSOC);
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} else {
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return $answer->fetchALL (PDO::FETCH_NUM);
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}
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}
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public static function loadAlone ($sql, $values = array()) {
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$answer = self::$join->prepare ($sql);
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$answer->execute ($values);
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return $answer->fetch (PDO::FETCH_NUM)[0];
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}
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public static function add ($table, $values = array()) {
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return self::command (
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"INSERT INTO `$table` (`" .
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implode('`, `', array_keys($values)) .
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"`) VALUES (" .
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str_repeat('?,', (count($values) > 0 ? count($values)-1 : 0)) .
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"?)"
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, array_values ($values));
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}
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// TODO: pokud vlozim prazdne pole tak chyba ??
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public static function addAll ($table, $values = array ()) {
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try {
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foreach ($values as $value) {
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self::add ($table, $value);
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}
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} catch (PDOException $ex) {
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throw new PDOException ($ex->getMessage());
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}
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}
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public static function edit (
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$table,
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$values = array(),
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$conditions,
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$values2 = array()
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) {
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return self::command (
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"UPDATE `$table` SET `" .
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implode('` =?, `', array_keys($values)) .
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"` =? " .
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$conditions
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, array_merge (array_values ($values), $values2));
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}
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public static function insertId () {
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return self::$join->lastInsertId ();
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}
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public static function addId ($lastTable, $lastIdName) {
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$answer = self::$join->prepare ("SELECT `$lastIdName` FROM `$lastTable` ORDER BY `$lastIdName` DESC");
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$answer->execute ();
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return $answer->fetch (PDO::FETCH_NUM)[0];
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}
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}
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