270 lines
8.6 KiB
PHP
270 lines
8.6 KiB
PHP
<?php
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/*
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* Sakura MySQL Database Engine
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*/
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namespace Sakura;
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use PDO;
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use PDOException;
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use PDOStatement;
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class Database {
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// Variable that will contain the SQL connection
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// Please refrain from referring to this, unless it's for your personal branch/purpose, despite it being public
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// it sort of defeats the "dynamic database system" I want to go for.
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public static $sql;
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// Constructor
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public static function init() {
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if(!extension_loaded('PDO')) {
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// Return error and die
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trigger_error('<b>SQL Driver</b>: PDO extension not loaded.', E_USER_ERROR);
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}
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// Initialise connection
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self::initConnect(
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(
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Configuration::getLocalConfig('db', 'unixsocket') ?
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self::prepareSock(
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Configuration::getLocalConfig('db', 'host'),
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Configuration::getLocalConfig('db', 'database')
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) :
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self::prepareHost(
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Configuration::getLocalConfig('db', 'host'),
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Configuration::getLocalConfig('db', 'database'),
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(
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Configuration::getLocalConfig('db', 'port') !== null ?
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Configuration::getLocalConfig('db', 'port') :
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3306
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)
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)
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),
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Configuration::getLocalConfig('db', 'username'),
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Configuration::getLocalConfig('db', 'password')
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);
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}
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// Regular IP/Hostname connection method prepare function
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private static function prepareHost($dbHost, $dbName, $dbPort = 3306) {
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$DSN = 'mysql:host=' . $dbHost . ';port=' . $dbPort . ';dbname=' . $dbName;
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return $DSN;
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}
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// Unix Socket connection method prepare function
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private static function prepareSock($dbHost, $dbName) {
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$DSN = 'mysql:unix_socket=' . $dbHost . ';dbname=' . $dbName;
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return $DSN;
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}
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// Initialise connection using default PDO stuff
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private static function initConnect($DSN, $dbUname, $dbPword) {
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try {
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// Connect to SQL server using PDO
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self::$sql = new PDO($DSN, $dbUname, $dbPword);
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} catch(PDOException $e) {
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// Catch connection errors
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trigger_error('SQL Driver: '. $e->getMessage(), E_USER_ERROR);
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}
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return true;
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}
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// Fetch array from database
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public static function fetch($table, $fetchAll = true, $data = null, $order = null, $limit = null, $group = null, $distinct = false, $column = '*') {
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// Begin preparation of the statement
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$prepare = 'SELECT '. ($distinct ? 'DISTINCT ' : '') . ($column == '*' ? '' : '`') . $column . ($column == '*' ? '' : '`') .' FROM `' . Configuration::getLocalConfig('db', 'prefix') . $table . '`';
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// If $data is set and is an array continue
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if(is_array($data)) {
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$prepare .= ' WHERE';
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foreach($data as $key => $value) {
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$prepare .= ' `'. $key .'` '. $value[1] .' :'. $key . ($key == key(array_slice($data, -1, 1, true)) ? '' : ' AND');
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// Unset variables to be safe
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unset($key);
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unset($value);
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}
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}
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// If $order is set and is an array continue
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if(is_array($order)) {
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$prepare .= ' ORDER BY `'. $order[0] .'`'. (!empty($order[1]) && $order[1] ? ' DESC' : '');
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}
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// If $group is set and is an array continue
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if(is_array($group)) {
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$prepare .= ' GROUP BY';
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foreach($group as $key => $value) {
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$prepare .= ' `'. $value .'`'. ($key == key(array_slice($group, -1, 1, true)) ? '' : ',');
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// Unset variables to be safe
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unset($key);
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unset($value);
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}
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}
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// If $limit is set and is an array continue
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if(is_array($limit)) {
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$prepare .= ' LIMIT';
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foreach($limit as $key => $value) {
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$prepare .= ' '. $value . ($key == key(array_slice($limit, -1, 1, true)) ? '' : ',');
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// Unset variables to be safe
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unset($key);
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unset($value);
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}
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}
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// Add the finishing semicolon
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$prepare .= ';';
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// Actually prepare the preration
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$query = self::$sql->prepare($prepare);
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// Bind those parameters if $data is an array that is
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if(is_array($data)) {
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foreach($data as $key => $value) {
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$query->bindParam(':'. $key, $value[0]);
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// Unset variables to be safe
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unset($key);
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unset($value);
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}
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}
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// Execute the prepared statements with parameters bound
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$query->execute();
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// Do fetch or fetchAll
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if($fetchAll)
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$result = $query->fetchAll(PDO::FETCH_BOTH);
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else
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$result = $query->fetch(PDO::FETCH_BOTH);
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// And return the output
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return $result;
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}
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// Insert data to database
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public static function insert($table, $data) {
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// Begin preparation of the statement
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$prepare = 'INSERT INTO `' . Configuration::getLocalConfig('db', 'prefix') . $table . '` ';
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// Run the foreach statement twice for (`stuff`) VALUES (:stuff)
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for($i = 0; $i < 2; $i++) {
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$prepare .= '(';
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// Do more shit, don't feel like describing this so yeah
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foreach($data as $key => $value) {
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if(strlen($value))
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$prepare .= ($i ? ':' : '`') . $key . ($i ? '' : '`') . ($key == key(array_slice($data, -1, 1, true)) ? '' : ', ');
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}
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$prepare .= ')' . ($i ? ';' : ' VALUES ');
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}
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// Actually prepare the preration
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$query = self::$sql->prepare($prepare);
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// Bind those parameters
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foreach($data as $key => $value) {
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if(strlen($value))
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$query->bindParam(':'. $key, $value);
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// Unset variables to be safe
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unset($key);
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unset($value);
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}
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// Execute the prepared statements with parameters bound
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$result = $query->execute();
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// Return whatever can be returned
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return $result;
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}
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// Update data in the database
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public static function update($table, $data) {
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// Begin preparation of the statement
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$prepare = 'UPDATE `' . Configuration::getLocalConfig('db', 'prefix') . $table . '`';
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// Run a foreach on $data and complete the statement
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foreach($data as $key => $values) {
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// Append WHERE or SET depending on where we are
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$prepare .= ' '. ($key ? 'WHERE' : 'SET');
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// Do this complicated shit, I barely know what's going on anymore but it works
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foreach($values as $column => $column_data) {
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$prepare .= ' `'. $column .'` '. ($key ? $column_data[1] : '=') .' :'. ($key ? 'w' : 's') .'_'. $column . ($column == key(array_slice($values, -1, 1, true)) ? ($key ? ';' : '') : ($key ? ' AND' : ','));
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}
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}
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// Actually prepare the preration
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$query = self::$sql->prepare($prepare);
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// Seperate the foreaches for the SET and WHERE clauses because it's fucking it up for some odd reason
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// Bind Set Clauses
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foreach($data[0] as $key => $value) {
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// Do the binding
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$query->bindParam(':s_'. $key, $value);
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// Unset variables to be safe
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unset($key);
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unset($value);
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}
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// Bind Where Clauses
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foreach($data[1] as $key => $values) {
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// Assign the array entry to a variable because fuck strict standards
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$value = $values[0];
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// Binding two electrifying memes
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$query->bindParam(':w_'. $key, $value);
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// Unset variables to be safe
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unset($key);
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unset($value);
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unset($values);
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}
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// Execute the prepared statements with parameters bound
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$result = $query->execute();
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// Return whatever can be returned
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return $result;
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}
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}
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