Name migration

src/RR/Flash.php

@@ -0,0 +1,117 @@
+<?php
+namespace RR;
+
+class Flash{
+
+    private static $_instance;
+
+    // Message types and shortcuts
+    const INFO    = 'i';
+    const SUCCESS = 's';
+    const WARNING = 'w';
+    const ERROR   = 'e';
+
+    const SESSION_NAME   = 'flashes';
+
+    const defaultType = self::INFO;
+
+    protected $msgTypes = [
+        self::ERROR   => 'error',
+        self::WARNING => 'warning',
+        self::SUCCESS => 'success',
+        self::INFO    => 'info',
+    ];
+
+    public $old_messages = Array();
+    public $new_messages = Array();
+    public $_flashes = Array();
+
+    //SINGLETON==============================================
+
+    private function __construct(){
+        if(session_id() == '' || !isset($_SESSION)) {
+            session_start();
+        }
+        if( isset($_SESSION['flashes']) ){
+            $this->old_messages = $_SESSION['flashes'];
+        }
+        unset( $_SESSION[self::SESSION_NAME] );
+    }
+
+    private static function newObj(){
+        if (!isset( self::$_instance )) {
+            self::$_instance = new Flash();
+        }
+        return self::$_instance;
+    }
+
+    public static function getInstance(){
+        if (!isset(self::$_instance)) {
+            return self::newObj();
+        }
+        return self::$_instance;
+    }
+
+    //=======================================================
+
+    public function merge(){
+        $this->_flashes = array_merge_recursive($this->new_messages, $this->old_messages);
+    }
+
+    public function load_to_session(){
+        $_SESSION[self::SESSION_NAME] = $this->new_messages;
+    }
+
+    public static function add_message($type = self::defaultType, $message){
+        $instance = self::getInstance();
+        $instance->new_messages[$type] = $message;
+        $instance->load_to_session();
+    }
+
+    public static function add_info($message){
+        $instance = self::getInstance();
+        $instance->new_messages[self::INFO] = $message;
+        $instance->load_to_session();
+    }
+
+    public static function add_error($message){
+        $instance = self::getInstance();
+        $instance->new_messages[self::ERROR] = $message;
+        $instance->load_to_session();
+    }
+
+    public static function get_errors(){
+        if(!self::has_errors()){
+            return Array();
+        }
+        return self::getInstance()->_flashes[self::ERROR];
+    }
+
+    public static function get_infos(){
+        if(!self::has_info()){
+            return Array();
+        }
+        return self::getInstance()->_flashes[self::INFO];
+    }
+
+    public static function has_errors(){
+        $instance = self::getInstance();
+        $instance->merge();
+        if( array_key_exists(self::ERROR, $instance->_flashes ) ){
+            return true;
+        }else{
+            return false;
+        }
+    }
+
+    public static function has_info(){
+        $instance = self::getInstance();
+        $instance->merge();
+        if( array_key_exists(self::INFO, $instance->_flashes ) ){
+            return true;
+        }else{
+            return false;
+        }
+    }
+
+}