<?php<liu21st@gmail.com>
namespace Think\Db\Driver;
use Think\Db\Driver;
class Sqlite extends Driver {
protected function parseDsn($config){
$dsn = 'sqlite:'.$config['database'];
return $dsn;
}
public function getFields($tableName) {
list($tableName) = explode(' ', $tableName);
$result = $this->query('PRAGMA table_info( '.$tableName.' )');
$info = array();
if($result){
foreach ($result as $key => $val) {
$name = isset($val['field']) ? $val['field'] : $val['name'];
$info[$name] = array(
'name' => $name,
'type' => $val['type'],
'notnull' => (bool)(((isset($val['null'])) && ($val['null'] === '')) || ((isset($val['notnull'])) && ($val['notnull'] === ''))), 'default' => isset($val['default']) ? $val['default'] : (isset($val['dflt_value'])?$val['dflt_value']:""),
'primary' => isset($val['key']) ? strtolower($val['key']) == 'pri' : (isset($val['pk']) ? $val['pk'] : false),
'autoinc' => isset($val['extra']) ? strtolower($val['extra']) == 'auto_increment' : (isset($val['key']) ? $val['key'] : false),
);
}
}
return $info;
}
public function getTables($dbName='') {
$result = $this->query("SELECT name FROM sqlite_master WHERE type='table' "
. "UNION ALL SELECT name FROM sqlite_temp_master "
. "WHERE type='table' ORDER BY name");
$info = array();
foreach ($result as $key => $val) {
$info[$key] = current($val);
}
return $info;
}
public function escapeString($str) {
return str_ireplace("'", "''", $str);
}
public function parseLimit($limit) {
$limitStr = '';
if(!empty($limit)) {
$limit = explode(',',$limit);
if(count($limit)>1) {
$limitStr .= ' LIMIT '.$limit[1].' OFFSET '.$limit[0].' ';
}else{
$limitStr .= ' LIMIT '.$limit[0].' ';
}
}
return $limitStr;
}
}