ZwiiCMS/core/class/jsondb/JsonDb.class.php

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<?php
/**
* Created by PhpStorm.
* User: Andrey Mistulov
* Company: Aristos
* Date: 14.03.2017
* Time: 15:25
*/
namespace Prowebcraft;
/**
* Class Data
* @package Aristos
*/
class JsonDb extends \Prowebcraft\Dot
{
protected $db = '';
protected $data = null;
protected $config = [];
public function __construct($config = [])
{
$this->config = array_merge([
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'name' => 'data.json',
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'backup' => false,
'dir' => getcwd()
], $config);
$this->loadData();
parent::__construct();
}
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/**
* Reload data from file
* @return $this
*/
public function reload()
{
$this->loadData(true);
return $this;
}
/**
* Set value or array of values to path
*
* @param mixed $key Path or array of paths and values
* @param mixed|null $value Value to set if path is not an array
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* @param bool $save Save data to database
* @return $this
*/
public function set($key, $value = null, $save = true)
{
parent::set($key, $value);
if ($save) $this->save();
return $this;
}
/**
* Add value or array of values to path
*
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* @param mixed $key Path or array of paths and values
* @param mixed|null $value Value to set if path is not an array
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* @param boolean $pop Helper to pop out last key if value is an array
* @param bool $save Save data to database
* @return $this
*/
public function add($key, $value = null, $pop = false, $save = true)
{
parent::add($key, $value, $pop);
if ($save) $this->save();
return $this;
}
/**
* Delete path or array of paths
*
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* @param mixed $key Path or array of paths to delete
* @param bool $save Save data to database
* @return $thisurn $this
*/
public function delete($key, $save = true)
{
parent::delete($key);
if ($save) $this->save();
return $this;
}
/**
* Delete all data, data from path or array of paths and
* optionally format path if it doesn't exist
*
* @param mixed|null $key Path or array of paths to clean
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* @param boolean $format Format option
* @param bool $save Save data to database
* @return $this
*/
public function clear($key = null, $format = false, $save = true)
{
parent::clear($key, $format);
if ($save) $this->save();
return $this;
}
/**
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* Local database upload
* @param bool $reload Reboot data?
* @return array|mixed|null
*/
protected function loadData($reload = false) {
if ($this->data === null || $reload) {
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$this->db = $this->config['dir'] . DIRECTORY_SEPARATOR . $this->config['name'];
if (!file_exists($this->db)) {
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return null; // Rebuild database manage by CMS
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} else {
if ($this->config['backup']) {
try {
//todo make backup of database
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copy ($this->config['dir'] . DIRECTORY_SEPARATOR . $this->config['name'], $this->config['dir'] . DIRECTORY_SEPARATOR . $this->config['name'] . '.backup');
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} catch (\Exception $e) {
}
}
}
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$this->data = json_decode(file_get_contents($this->db), true);
if (!$this->data === null) {
throw new \InvalidArgumentException('Database file ' . $this->db
. ' contains invalid json object. Please validate or remove file');
}
}
return $this->data;
}
/**
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* Save database
*/
public function save() {
$lenght = strlen(json_encode($this->data));
$try = 0;
while ($try < 5) {
$written = file_put_contents($this->db, json_encode($this->data), JSON_UNESCAPED_UNICODE|JSON_PRETTY_PRINT|LOCK_EX); // Multi user get a locker
if ($written == $lenght) {
break;
}
$try++;
sleep(1);
}
if ($written !== $lenght) {
exit('Erreur d\'écriture, les données n\'ont pas été sauvegardées');
}
}
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}