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<?php
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namespace DBAL;
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use PDO;
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use DBAL\Modifiers\SafeString;
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use DBAL\Modifiers\Operators;
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/**
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* PDO Database connection class
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*
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* @author Adam Binnersley <[email protected]>
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* @version PDO Database Class
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*/
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final class Database implements DBInterface{
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protected $db;
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public $sql;
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private $key;
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protected $logLocation;
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public $logErrors = true;
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public $logQueries = false;
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public $displayErrors = false;
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protected $database;
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protected $cacheEnabled = false;
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protected $cacheObj;
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protected $cacheValue;
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protected $modified = false;
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private $query;
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private $values = [];
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private $prepare = [];
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private static $connectors = array(
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'cubrid' => 'cubrid:host=%s;port=%d;dbname=%s',
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'dblib' => 'dblib:host=%s:%d;dbname=%s',
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'mssql' => 'sqlsrv:Server=%s,%d;Database=%s',
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'mysql' => 'mysql:host=%s;port=%d;dbname=%s',
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'pgsql' => 'pgsql:host=%s;port=%d;dbname=%s',
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'sqlite' => 'sqlite::memory:'
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);
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/**
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* Connect to database using PDO connection
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* @param string $hostname This should be the host of the database e.g. 'localhost'
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* @param string $username This should be the username for the chosen database
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* @param string $password This should be the password for the chosen database
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* @param string $database This should be the database that you wish to connect to
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* @param string|false $backuphost If you have a replication server set up put the hostname or IP address incase the primary server goes down
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* @param object|false $cache If you want to cache the queries with Memcache(d)/Redis/APC/Xcache This should be the object else set to false
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* @param boolean $persistent If you want a persistent database connection set to true
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* @param string $type The type of connection that you wish to make can be 'mysql', 'cubrid', 'dblib', 'mssql', 'odbc', 'pgsql, or 'sqlite'
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* @param int $port This should be the port number of the MySQL database connection
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*/
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public function __construct($hostname, $username, $password, $database, $backuphost = false, $cache = false, $persistent = false, $type = 'mysql', $port = 3306) {
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$this->setLogLocation();
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try{
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$this->connectToServer($username, $password, $database, $hostname, $persistent, $type, $port);
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}
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catch(\Exception $e) {
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if($backuphost !== false) {
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$this->connectToServer($username, $password, $database, $backuphost, $persistent, $type, $port);
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}
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$this->error($e);
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}
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if(is_object($cache)) {
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$this->setCaching($cache);
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}
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}
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/**
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* Closes the PDO database connection when Database object unset
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*/
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public function __destruct() {
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$this->closeDatabase();
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}
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/**
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* Connect to the database using PDO connection
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* @param string $username This should be the username for the chosen database
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* @param string $password This should be the password for the chosen database
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* @param string $database This should be the database that you wish to connect to
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* @param string $hostname The hostname for the database
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* @param boolean $persistent If you want a persistent database connection set to true
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* @param string $type The type of connection that you wish to make can be 'mysql', 'cubrid', 'dblib', 'mssql', 'pgsql, or 'sqlite'
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* @param int $port The port number to connect to the MySQL server
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*/
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protected function connectToServer($username, $password, $database, $hostname, $persistent = false, $type = 'mysql', $port = 3306) {
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if(!$this->db) {
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$this->database = $database;
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$this->db = new PDO(sprintf(self::$connectors[$type], $hostname, $port, $database), $username, $password,
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array_merge(
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($persistent !== false ? array(PDO::ATTR_PERSISTENT => true) : array()),
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($type === 'mysql' ? array(PDO::MYSQL_ATTR_USE_BUFFERED_QUERY => true, PDO::ATTR_EMULATE_PREPARES => true) : array())
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)
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);
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$this->db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
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}
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}
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/**
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* Enables the caching and set the caching object to the one provided
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* @param object $caching This should be class of the type of caching you are using
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*/
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public function setCaching($caching) {
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if(is_object($caching)) {
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$this->cacheObj = $caching;
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$this->cacheEnabled = true;
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}
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return $this;
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}
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/**
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* This query function is used for more advanced SQL queries for which non of the other methods fit
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* @param string $sql This should be the SQL query which you wish to run
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* @param array $variables This should be an array of values to execute as the values in a prepared statement
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* @return array Returns array of results for the query that has just been run
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*/
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public function query($sql, $variables = array(), $cache = true) {
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if(!empty(trim($sql))){
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try{
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$this->sql = $sql;
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$this->query = $this->db->prepare($this->sql);
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$this->query->execute($variables);
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if(strpos($this->sql, 'SELECT') !== false) {
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return $this->query->fetchAll(PDO::FETCH_ASSOC);
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}
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}
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catch(\Exception $e) {
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$this->error($e);
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}
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}
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}
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/**
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* Returns a single record for a select query for the chosen table
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* @param string $table This should be the table you wish to select the values from
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* @param array $where Should be the field names and values you wish to use as the where query e.g. array('fieldname' => 'value', 'fieldname2' => 'value2', etc).
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* @param string|array $fields This should be the records you wis to select from the table. It should be either set as '*' which is the default or set as an array in the following format array('field', 'field2', 'field3', etc).
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* @param array $order This is the order you wish the results to be ordered in should be formatted as follows array('fieldname' => 'ASC') or array("'fieldname', 'fieldname2'" => 'DESC')
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* @param boolean $cache If the query should be cached or loaded from cache set to true else set to false
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* @return array Returns a single table record as the standard array when running SQL queries
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*/
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public function select($table, $where = array(), $fields = '*', $order = array(), $cache = true) {
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return $this->selectAll($table, $where, $fields, $order, 1, $cache);
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}
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/**
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* Returns a multidimensional array of the results from the selected table given the given parameters
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* @param string $table This should be the table you wish to select the values from
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* @param array $where Should be the field names and values you wish to use as the where query e.g. array('fieldname' => 'value', 'fieldname2' => 'value2', etc).
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* @param string|array $fields This should be the records you wis to select from the table. It should be either set as '*' which is the default or set as an array in the following format array('field', 'field2', 'field3', etc).
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* @param array $order This is the order you wish the results to be ordered in should be formatted as follows array('fieldname' => 'ASC') or array("'fieldname', 'fieldname2'" => 'DESC')
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* @param integer|array $limit The number of results you want to return 0 is default and returns all results, else should be formated either as a standard integer or as an array as the start and end values e.g. array(0 => 150)
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* @param boolean $cache If the query should be cached or loaded from cache set to true else set to false
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* @return array Returns a multidimensional array with the chosen fields from the table
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*/
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public function selectAll($table, $where = array(), $fields = '*', $order = array(), $limit = 0, $cache = true) {
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$this->buildSelectQuery(SafeString::makeSafe($table), $where, $fields, $order, $limit);
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$result = $this->executeQuery($cache);
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if(!$result) {
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if($limit === 1) {$result = $this->query->fetch(PDO::FETCH_ASSOC);} // Reduce the memory usage if only one record and increase performance
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else{$result = $this->query->fetchAll(PDO::FETCH_ASSOC);}
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if($cache && $this->cacheEnabled) {$this->setCache($this->key, $result);}
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}
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return $result ? $result : false;
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}
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/**
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* Returns a single column value for a given query
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* @param string $table This should be the table you wish to select the values from
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* @param array $where Should be the field names and values you wish to use as the where query e.g. array('fieldname' => 'value', 'fieldname2' => 'value2', etc).
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* @param array $fields This should be the records you wis to select from the table. It should be either set as '*' which is the default or set as an array in the following format array('field', 'field2', 'field3', etc).
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* @param int $colNum This should be the column number you wish to get (starts at 0)
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* @param array $order This is the order you wish the results to be ordered in should be formatted as follows array('fieldname' => 'ASC') or array("'fieldname', 'fieldname2'" => 'DESC') so it can be done in both directions
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* @param boolean $cache If the query should be cached or loaded from cache set to true else set to false
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* @return mixed If a result is found will return the value of the colum given else will return false
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*/
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public function fetchColumn($table, $where = array(), $fields = '*', $colNum = 0, $order = array(), $cache = true) {
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$this->buildSelectQuery(SafeString::makeSafe($table), $where, $fields, $order, 1);
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$result = $this->executeQuery($cache);
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if(!$result) {
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$column = $this->query->fetchColumn(intval($colNum));
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if($cache && $this->cacheEnabled) {$this->setCache($this->key, $column);}
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return ($column ? $column : false);
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}
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return false;
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}
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/**
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* Inserts into database using the prepared PDO statements
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* @param string $table This should be the table you wish to insert the values into
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* @param array $records This should be the field names and values in the format of array('fieldname' => 'value', 'fieldname2' => 'value2', etc.)
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* @return boolean If data is inserted returns true else returns false
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*/
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2 |
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public function insert($table, $records) {
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197
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unset($this->prepare);
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198
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199
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$this->sql = sprintf("INSERT INTO `%s` (%s) VALUES (%s);", SafeString::makeSafe($table), $this->fields($records, true), implode(', ', $this->prepare));
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2 |
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$this->executeQuery(false);
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2 |
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return $this->numRows() ? true : false;
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202
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}
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203
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204
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/**
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205
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* Updates values in a database using the provide variables
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206
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* @param string $table This should be the table you wish to update the values for
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207
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* @param array $records This should be the field names and new values in the format of array('fieldname' => 'newvalue', 'fieldname2' => 'newvalue2', etc.)
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208
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* @param array $where Should be the field names and values you wish to update in the form of an array e.g. array('fieldname' => 'value', 'fieldname2' => 'value2', etc).
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209
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* @param int $limit The number of results you want to return 0 is default and will update all results that match the query, else should be formated as a standard integer
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210
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* @return boolean Returns true if update is successful else returns false
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211
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*/
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212
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2 |
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public function update($table, $records, $where = array(), $limit = 0) {
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213
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$this->sql = sprintf("UPDATE `%s` SET %s %s%s;", SafeString::makeSafe($table), $this->fields($records), $this->where($where), $this->limit($limit));
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214
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2 |
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$this->executeQuery(false);
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215
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return $this->numRows() ? true : false;
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216
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}
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217
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218
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/**
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219
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* Deletes records from the given table based on the variables given
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220
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* @param string $table This should be the table you wish to delete the records from
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221
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* @param array $where This should be an array of for the where statement
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222
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* @param int $limit The number of results you want to return 0 is default and will delete all results that match the query, else should be formated as a standard integer
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223
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*/
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224
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2 |
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public function delete($table, $where, $limit = 0) {
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225
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2 |
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$this->sql = sprintf("DELETE FROM `%s` %s%s;", SafeString::makeSafe($table), $this->where($where), $this->limit($limit));
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226
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2 |
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$this->executeQuery(false);
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227
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return $this->numRows() ? true : false;
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228
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}
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229
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230
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/**
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231
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* Count the number of return results
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232
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* @param string $table The table you wish to count the result of
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233
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* @param array $where Should be the field names and values you wish to use as the where query e.g. array('fieldname' => 'value', 'fieldname2' => 'value2', etc).
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234
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* @param boolean $cache If the query should be cached or loaded from cache set to true else set to false
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235
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* @return int Returns the number of results
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236
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*/
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237
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1 |
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public function count($table, $where = array(), $cache = true) {
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238
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1 |
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$this->sql = sprintf("SELECT count(*) FROM `%s`%s;", SafeString::makeSafe($table), $this->where($where));
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239
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1 |
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$this->key = md5($this->database.$this->sql.serialize($this->values));
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240
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241
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1 |
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$result = $this->executeQuery($cache);
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242
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1 |
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if(!$result) {
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243
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1 |
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$result = $this->query->fetchColumn();
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244
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1 |
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if($cache && $this->cacheEnabled) {$this->setCache($this->key, $result);}
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245
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}
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246
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1 |
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return $result;
|
|
247
|
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|
}
|
|
248
|
|
|
|
|
249
|
|
|
/**
|
|
250
|
|
|
* Truncates a given table from the selected database so there are no values in the table
|
|
251
|
|
|
* @param string $table This should be the table you wish to truncate
|
|
252
|
|
|
* @return boolean If the table is emptied returns true else returns false
|
|
253
|
|
|
*/
|
|
254
|
1 |
|
public function truncate($table) {
|
|
255
|
|
|
try{
|
|
256
|
1 |
|
$this->sql = sprintf("TRUNCATE TABLE `%s`", SafeString::makeSafe($table));
|
|
257
|
1 |
|
$this->executeQuery(false);
|
|
258
|
|
|
}
|
|
259
|
|
|
catch(\Exception $e) {
|
|
260
|
|
|
$this->error($e);
|
|
261
|
|
|
}
|
|
262
|
1 |
|
return $this->numRows() ? true : false;
|
|
263
|
|
|
}
|
|
264
|
|
|
|
|
265
|
|
|
/**
|
|
266
|
|
|
* Returns the number of rows for the last query sent
|
|
267
|
|
|
* @return int Returns the number of rows for the last query
|
|
268
|
|
|
*/
|
|
269
|
8 |
|
public function numRows() {
|
|
270
|
8 |
|
if(isset($this->query)) {
|
|
271
|
8 |
|
return $this->query->rowCount();
|
|
272
|
|
|
}
|
|
273
|
|
|
return 0;
|
|
274
|
|
|
}
|
|
275
|
|
|
|
|
276
|
|
|
/**
|
|
277
|
|
|
* Returns the number of rows for the last query sent (Looks a the numRows() function just added incase of habbit)
|
|
278
|
|
|
* @return int Returns the number of rows for the last query
|
|
279
|
|
|
*/
|
|
280
|
1 |
|
public function rowCount() {
|
|
281
|
1 |
|
return $this->numRows();
|
|
282
|
|
|
}
|
|
283
|
|
|
|
|
284
|
|
|
/**
|
|
285
|
|
|
* Returns the ID of the last record last inserted
|
|
286
|
|
|
* @param string $name This should be the name of the sequence object you wish to retrieve
|
|
287
|
|
|
* @return int|string Returns the last inserted ID of the last insert item if $name is null else returns string with sequenced object
|
|
288
|
|
|
*/
|
|
289
|
1 |
|
public function lastInsertId($name = null) {
|
|
290
|
1 |
|
return $this->db->lastInsertId($name);
|
|
291
|
|
|
}
|
|
292
|
|
|
|
|
293
|
|
|
/**
|
|
294
|
|
|
* Checks to see if a connection has been made to the server
|
|
295
|
|
|
* @return boolean
|
|
296
|
|
|
*/
|
|
297
|
2 |
|
public function isConnected() {
|
|
298
|
2 |
|
return is_object($this->db) ? true : false;
|
|
299
|
|
|
}
|
|
300
|
|
|
|
|
301
|
|
|
/**
|
|
302
|
|
|
* Returns the server version information
|
|
303
|
|
|
*/
|
|
304
|
1 |
|
public function serverVersion() {
|
|
305
|
1 |
|
return $this->db->getAttribute(PDO::ATTR_SERVER_VERSION);
|
|
306
|
|
|
}
|
|
307
|
|
|
|
|
308
|
|
|
/**
|
|
309
|
|
|
* Sets the location of the log files
|
|
310
|
|
|
* @param string $location This should be where you wish the logs to be stored
|
|
311
|
|
|
* @return $this
|
|
312
|
|
|
*/
|
|
313
|
1 |
|
public function setLogLocation($location = false) {
|
|
314
|
1 |
|
if($location === false) {
|
|
315
|
1 |
|
$location = dirname(__FILE__).DIRECTORY_SEPARATOR.'logs'.DIRECTORY_SEPARATOR;
|
|
316
|
|
|
}
|
|
317
|
1 |
|
$this->logLocation = $location;
|
|
318
|
1 |
|
if (!file_exists($location)) {
|
|
319
|
1 |
|
mkdir($location, 0777, true);
|
|
320
|
|
|
}
|
|
321
|
1 |
|
return $this;
|
|
322
|
|
|
}
|
|
323
|
|
|
|
|
324
|
|
|
/**
|
|
325
|
|
|
* Displays the error massage which occurs
|
|
326
|
|
|
* @param \Exception $error This should be an instance of Exception
|
|
327
|
|
|
*/
|
|
328
|
4 |
|
private function error($error) {
|
|
329
|
4 |
|
if($this->logErrors) {
|
|
330
|
4 |
|
$file = $this->logLocation.'db-errors.txt';
|
|
331
|
4 |
|
$current = file_get_contents($file);
|
|
332
|
4 |
|
$current .= date('d/m/Y H:i:s')." ERROR: ".$error->getMessage()." on ".$this->sql."\n";
|
|
333
|
4 |
|
file_put_contents($file, $current);
|
|
334
|
|
|
}
|
|
335
|
4 |
|
if($this->displayErrors) {
|
|
336
|
|
|
die('ERROR: '.$error->getMessage().' on '.$this->sql);
|
|
337
|
|
|
}
|
|
338
|
4 |
|
}
|
|
339
|
|
|
|
|
340
|
|
|
/**
|
|
341
|
|
|
* Writes all queries to a log file
|
|
342
|
|
|
*/
|
|
343
|
|
|
public function writeQueryToLog() {
|
|
344
|
|
|
$file = $this->logLocation.'queries.txt';
|
|
345
|
|
|
$current = file_get_contents($file);
|
|
346
|
|
|
$current .= "SQL: ".$this->sql.":".serialize($this->values)."\n";
|
|
347
|
|
|
file_put_contents($file, $current);
|
|
348
|
|
|
}
|
|
349
|
|
|
|
|
350
|
|
|
/**
|
|
351
|
|
|
* Closes the PDO database connection by setting the connection to NULL
|
|
352
|
|
|
*/
|
|
353
|
1 |
|
public function closeDatabase() {
|
|
354
|
1 |
|
$this->db = null;
|
|
355
|
1 |
|
}
|
|
356
|
|
|
|
|
357
|
|
|
/**
|
|
358
|
|
|
* Build the SQL query but doesn't execute it
|
|
359
|
|
|
* @param string $table This should be the table you wish to select the values from
|
|
360
|
|
|
* @param array $where Should be the field names and values you wish to use as the where query e.g. array('fieldname' => 'value', 'fieldname2' => 'value2', etc).
|
|
361
|
|
|
* @param string|array $fields This should be the records you wis to select from the table. It should be either set as '*' which is the default or set as an array in the following format array('field', 'field2', 'field3', etc).
|
|
362
|
|
|
* @param array $order This is the order you wish the results to be ordered in should be formatted as follows array('fieldname' => 'ASC') or array("'fieldname', 'fieldname2'" => 'DESC') so it can be done in both directions
|
|
363
|
|
|
* @param integer|array $limit The number of results you want to return 0 is default and returns all results, else should be formated either as a standard integer or as an array as the start and end values e.g. array(0 => 150)
|
|
364
|
|
|
*/
|
|
365
|
5 |
|
protected function buildSelectQuery($table, $where = array(), $fields = '*', $order = array(), $limit = 0) {
|
|
366
|
5 |
|
if(is_array($fields)) {
|
|
367
|
1 |
|
$selectfields = array();
|
|
368
|
1 |
|
foreach($fields as $field => $value) {
|
|
369
|
1 |
|
$selectfields[] = sprintf("`%s`", SafeString::makeSafe($value));
|
|
370
|
|
|
}
|
|
371
|
1 |
|
$fieldList = implode(', ', $selectfields);
|
|
372
|
|
|
}
|
|
373
|
5 |
|
else{$fieldList = '*';}
|
|
374
|
|
|
|
|
375
|
5 |
|
$this->sql = sprintf("SELECT %s FROM `%s`%s%s%s;", $fieldList, SafeString::makeSafe($table), $this->where($where), $this->orderBy($order), $this->limit($limit));
|
|
376
|
5 |
|
$this->key = md5($this->database.$this->sql.serialize($this->values));
|
|
377
|
5 |
|
}
|
|
378
|
|
|
|
|
379
|
|
|
/**
|
|
380
|
|
|
* Execute the current query if no cache value is available
|
|
381
|
|
|
* @param boolean $cache If the cache should be checked for the checked for the values of the query set to true else set to false
|
|
382
|
|
|
* @return mixed If a cached value exists will be returned else if cache is not checked and query is executed will not return anything
|
|
383
|
|
|
*/
|
|
384
|
13 |
|
protected function executeQuery($cache = true) {
|
|
385
|
13 |
|
if($this->logQueries) {$this->writeQueryToLog();}
|
|
386
|
13 |
|
if($cache && $this->cacheEnabled && $this->getCache($this->key)) {
|
|
387
|
|
|
return $this->cacheValue;
|
|
388
|
|
|
}
|
|
389
|
|
|
try{
|
|
390
|
13 |
|
$this->query = $this->db->prepare($this->sql);
|
|
391
|
13 |
|
$this->bindValues($this->values);
|
|
392
|
13 |
|
$this->query->execute();
|
|
393
|
13 |
|
unset($this->values);
|
|
394
|
13 |
|
$this->values = [];
|
|
395
|
|
|
}
|
|
396
|
3 |
|
catch(\Exception $e) {
|
|
397
|
3 |
|
unset($this->values);
|
|
398
|
3 |
|
$this->values = [];
|
|
399
|
3 |
|
$this->error($e);
|
|
400
|
|
|
}
|
|
401
|
13 |
|
}
|
|
402
|
|
|
|
|
403
|
|
|
/**
|
|
404
|
|
|
* This outputs the SQL where query based on a given array
|
|
405
|
|
|
* @param array $where This should be an array that you wish to create the where query for in the for array('field1' => 'test') or array('field1' => array('>=', 0))
|
|
406
|
|
|
* @return string|false If the where query is an array will return the where string and set the values else returns false if no array sent
|
|
407
|
|
|
*/
|
|
408
|
9 |
|
private function where($where) {
|
|
409
|
9 |
|
if(is_array($where) && !empty($where)) {
|
|
410
|
8 |
|
$wherefields = array();
|
|
411
|
8 |
|
foreach($where as $field => $value) {
|
|
412
|
8 |
|
$wherefields[] = $this->formatValues($field, $value);
|
|
413
|
|
|
}
|
|
414
|
8 |
|
if(!empty($wherefields)) {
|
|
415
|
8 |
|
return " WHERE ".implode(' AND ', $wherefields);
|
|
416
|
|
|
}
|
|
417
|
|
|
}
|
|
418
|
2 |
|
return false;
|
|
419
|
|
|
}
|
|
420
|
|
|
|
|
421
|
|
|
/**
|
|
422
|
|
|
* Sets the order sting for the SQL query based on an array or string
|
|
423
|
|
|
* @param array|string $order This should be either set to array('fieldname' => 'ASC/DESC') or RAND()
|
|
424
|
|
|
* @return string|false If the SQL query has an valid order by will return a string else returns false
|
|
425
|
|
|
*/
|
|
426
|
1 |
|
private function orderBy($order) {
|
|
427
|
1 |
|
if(is_array($order) && !empty(array_filter($order))) {
|
|
428
|
1 |
|
$string = array();
|
|
429
|
1 |
|
foreach($order as $fieldorder => $fieldvalue) {
|
|
430
|
1 |
|
if(!empty($fieldorder) && !empty($fieldvalue)) {
|
|
431
|
1 |
|
$string[] = sprintf("`%s` %s", SafeString::makeSafe($fieldorder), strtoupper(SafeString::makeSafe($fieldvalue)));
|
|
432
|
|
|
}
|
|
433
|
|
|
elseif($fieldvalue === 'RAND()') {
|
|
434
|
1 |
|
$string[] = $fieldvalue;
|
|
435
|
|
|
}
|
|
436
|
|
|
}
|
|
437
|
1 |
|
return sprintf(" ORDER BY %s", implode(", ", $string));
|
|
438
|
|
|
}
|
|
439
|
|
|
elseif($order == 'RAND()') {
|
|
440
|
|
|
return " ORDER BY RAND()";
|
|
441
|
|
|
}
|
|
442
|
|
|
return false;
|
|
443
|
|
|
}
|
|
444
|
|
|
|
|
445
|
|
|
/**
|
|
446
|
|
|
* Build the field list for the query
|
|
447
|
|
|
* @param array $records This should be an array listing all of the fields
|
|
448
|
|
|
* @param boolean $insert If this is an insert statement should be set to true to create the correct amount of queries for the prepared statement
|
|
449
|
|
|
* @return string The fields list will be returned as a string to insert into the SQL query
|
|
450
|
|
|
*/
|
|
451
|
4 |
|
private function fields($records, $insert = false) {
|
|
452
|
4 |
|
$fields = array();
|
|
453
|
|
|
|
|
454
|
4 |
|
foreach($records as $field => $value) {
|
|
455
|
4 |
|
if($insert === true) {
|
|
456
|
4 |
|
$fields[] = sprintf("`%s`", SafeString::makeSafe($field));
|
|
457
|
4 |
|
$this->prepare[] = '?';
|
|
458
|
|
|
}
|
|
459
|
|
|
else{
|
|
460
|
2 |
|
$fields[] = sprintf("`%s` = ?", SafeString::makeSafe($field));
|
|
461
|
|
|
}
|
|
462
|
4 |
|
$this->values[] = $value;
|
|
463
|
|
|
}
|
|
464
|
4 |
|
return implode(', ', $fields);
|
|
465
|
|
|
}
|
|
466
|
|
|
|
|
467
|
|
|
/**
|
|
468
|
|
|
* Returns the limit SQL for the current query as a string
|
|
469
|
|
|
* @param integer|array $limit This should either be set as an integer or should be set as an array with a start and end value
|
|
470
|
|
|
* @return string|false Will return the LIMIT string for the current query if it is valid else returns false
|
|
471
|
|
|
*/
|
|
472
|
1 |
|
private function limit($limit = 0) {
|
|
473
|
1 |
|
if(is_array($limit) && !empty(array_filter($limit))) {
|
|
474
|
1 |
|
foreach($limit as $start => $end) {
|
|
475
|
1 |
|
return " LIMIT ".intval($start).", ".intval($end);
|
|
476
|
|
|
}
|
|
477
|
|
|
}
|
|
478
|
1 |
|
elseif((int)$limit > 0) {
|
|
479
|
1 |
|
return " LIMIT ".intval($limit);
|
|
480
|
|
|
}
|
|
481
|
1 |
|
return false;
|
|
482
|
|
|
}
|
|
483
|
|
|
|
|
484
|
|
|
|
|
485
|
|
|
/**
|
|
486
|
|
|
* Set the cache with a key and value
|
|
487
|
|
|
* @param string $key The unique key to store the value against
|
|
488
|
|
|
* @param mixed $value The value of the MYSQL query
|
|
489
|
|
|
*/
|
|
490
|
2 |
|
public function setCache($key, $value) {
|
|
491
|
2 |
|
if($this->cacheEnabled) {
|
|
492
|
2 |
|
$this->cacheObj->save($key, $value);
|
|
493
|
|
|
}
|
|
494
|
2 |
|
}
|
|
495
|
|
|
|
|
496
|
|
|
/**
|
|
497
|
|
|
* Get the results for a given key
|
|
498
|
|
|
* @param string $key The unique key to check for stored variables
|
|
499
|
|
|
* @return mixed Returned the cached results from
|
|
500
|
|
|
*/
|
|
501
|
2 |
|
public function getCache($key) {
|
|
502
|
2 |
|
if($this->modified === true || !$this->cacheEnabled) {return false;}
|
|
503
|
|
|
else{
|
|
504
|
2 |
|
$this->cacheValue = $this->cacheObj->fetch($key);
|
|
505
|
2 |
|
return $this->cacheValue;
|
|
506
|
|
|
}
|
|
507
|
|
|
}
|
|
508
|
|
|
|
|
509
|
|
|
/**
|
|
510
|
|
|
* Clears the cache
|
|
511
|
|
|
*/
|
|
512
|
|
|
public function flushDB() {
|
|
513
|
|
|
$this->cacheObj->deleteAll();
|
|
514
|
|
|
}
|
|
515
|
|
|
|
|
516
|
|
|
/**
|
|
517
|
|
|
* Format the where queries and set the prepared values
|
|
518
|
|
|
* @param string $field This should be the field name in the database
|
|
519
|
|
|
* @param mixed $value This should be the value which should either be a string or an array if it contains an operator
|
|
520
|
|
|
* @return string This should be the string to add to the SQL query
|
|
521
|
|
|
*/
|
|
522
|
8 |
|
protected function formatValues($field, $value) {
|
|
523
|
8 |
|
if(!is_array($value) && Operators::isOperatorValid($value) && !Operators::isOperatorPrepared($value)) {
|
|
524
|
1 |
|
return sprintf("`%s` %s", SafeString::makeSafe($field), Operators::getOperatorFormat($value));
|
|
525
|
|
|
}
|
|
526
|
8 |
|
elseif(is_array($value)) {
|
|
527
|
2 |
|
$keys = [];
|
|
528
|
2 |
|
if(!is_array(array_values($value)[0])) {
|
|
529
|
2 |
|
$this->values[] = (isset($value[1]) ? $value[1] : array_values($value)[0]);
|
|
530
|
2 |
|
$operator = (isset($value[0]) ? $value[0] : key($value));
|
|
531
|
|
|
}
|
|
532
|
|
|
else{
|
|
533
|
1 |
|
foreach(array_values($value)[0] as $op => $array_value) {
|
|
534
|
1 |
|
$this->values[] = $array_value;
|
|
535
|
1 |
|
$keys[] = '?';
|
|
536
|
|
|
}
|
|
537
|
1 |
|
$operator = key($value);
|
|
538
|
|
|
}
|
|
539
|
2 |
|
return sprintf("`%s` %s", SafeString::makeSafe($field), sprintf(Operators::getOperatorFormat($operator), implode($keys, ', ')));
|
|
540
|
|
|
|
|
541
|
|
|
}
|
|
542
|
6 |
|
$this->values[] = $value;
|
|
543
|
6 |
|
return sprintf("`%s` = ?", SafeString::makeSafe($field));
|
|
544
|
|
|
}
|
|
545
|
|
|
|
|
546
|
|
|
/**
|
|
547
|
|
|
* Band values to use in the query
|
|
548
|
|
|
* @param array $values This should be the values being used in the query
|
|
549
|
|
|
*/
|
|
550
|
12 |
|
protected function bindValues($values) {
|
|
551
|
12 |
|
if(is_array($values)) {
|
|
552
|
12 |
|
foreach($values as $i => $value) {
|
|
553
|
12 |
|
if(is_numeric($value) && intval($value) == $value && $value[0] != 0) {$type = PDO::PARAM_INT; $value = intval($value);}
|
|
554
|
12 |
|
elseif(is_null($value) || $value === 'NULL') {$type = PDO::PARAM_NULL; $value = NULL;}
|
|
555
|
12 |
|
elseif(is_bool($value)) {$type = PDO::PARAM_BOOL;}
|
|
556
|
12 |
|
else{$type = PDO::PARAM_STR;}
|
|
557
|
12 |
|
$this->query->bindValue(intval($i + 1), $value, $type);
|
|
558
|
|
|
}
|
|
559
|
|
|
}
|
|
560
|
12 |
|
}
|
|
561
|
|
|
}
|
|
562
|
|
|
|
AdamB7586 /
pdo-dbal
