153 lines
2.9 KiB
PHP
153 lines
2.9 KiB
PHP
<?php
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/**
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* MiniMVC
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*
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* Convention-based micro-framework for PHP
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*
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* @package miniMVC
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* @author Timothy J. Warren
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* @copyright Copyright (c) 2011 - 2012
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* @link https://github.com/timw4mail/miniMVC
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* @license http://philsturgeon.co.uk/code/dbad-license
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*/
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// --------------------------------------------------------------------------
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namespace miniMVC;
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/**
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* Class for using JSON as a key->value data store
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*
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* @package miniMVC
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* @subpackage Libraries
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*/
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class Data_Store {
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/**
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* Settings object represented by the currently loaded JSON file
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*/
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private $current;
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/**
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* Singleton instance
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*/
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private static $instance;
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/**
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* Create and/or load json file
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*/
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protected function __construct()
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{
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$path = MM_APP_PATH .'config/data_store.json';
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if ( ! is_file($path))
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{
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touch($path);
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$this->current = (object)[];
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}
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else
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{
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// Load the file
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$json = file_get_contents($path);
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// Load the object into the class
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$this->current = json_decode($json);
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}
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}
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// --------------------------------------------------------------------------
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/**
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* Output the data on destruct
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*/
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public function __destruct()
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{
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$file_string = json_encode($this->current, JSON_PRETTY_PRINT);
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file_put_contents(MM_APP_PATH . 'config/data_store.json', $file_string);
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}
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// --------------------------------------------------------------------------
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/**
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* Magic function called when cloning an object
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*/
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public function __clone()
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{
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trigger_error('Clone is not allowed.', E_USER_ERROR);
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}
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// --------------------------------------------------------------------------
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/**
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* Magic method to simplify isset checking for config options
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*
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* @param string $key
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* @return mixed
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*/
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public function __get($key)
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{
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return (isset($this->current->{$key}))
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? $this->current->{$key}
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: NULL;
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}
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// --------------------------------------------------------------------------
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/**
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* Magic method to simplify setting config options
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*
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* @param string $key
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* @param mixed
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*/
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public function __set($key, $val)
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{
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return $this->current->{$key} = $val;
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}
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// --------------------------------------------------------------------------
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/**
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* Static method to retreive current instance
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* of the singleton
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*
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* @return self
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*/
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public static function &get_instance()
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{
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if( ! isset(self::$instance))
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{
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$name = __CLASS__;
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self::$instance = new $name();
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}
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return self::$instance;
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}
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// --------------------------------------------------------------------------
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/**
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* Removes a key from the data store
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*
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* @param string $key
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* @return void
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*/
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public function del($key)
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{
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unset($this->current->{$key});
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}
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// --------------------------------------------------------------------------
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/**
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* Return the entire data store object
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*
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* @return object
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*/
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public function get_all()
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{
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return $this->current;
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}
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}
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// End of data store.php
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