Memcache, refactoring, View helpers, #16

git-svn-id: svn+ssh://code.netmonsters.ru/svn/majestic/branches/evo@124 4cb57b5f-5bbd-dd11-951b-001d605cbbc5

app/ErrorAction.php

@@ -13,7 +13,7 @@ class ErrorAction extends ViewAction
 {
     
     /**
-     * @var Exception
+     * @var ErrorException
      */
     protected $exception;
     
@@ -36,12 +36,12 @@ class ErrorAction extends ViewAction
         return '/static/' . $this->template;
     }
     
-    protected function sendHttpCode($code)
+    protected function sendHttpCode()
     {
         if (headers_sent()) {
             return;
         }
-        switch ($code) {
+        switch ($this->template) {
             case 404:
                 header('HTTP/1.0 404 Not Found');
             break;
@@ -50,9 +50,40 @@ class ErrorAction extends ViewAction
         }
     }
     
+    protected function logError()
+    {
+        if ($this->template = 500) {
+            
+            $error = 0;
+            $ex = $this->exception;
+            if ($ex instanceof ErrorException) {
+                $error = $ex->getSeverity();
+            }
+            
+            switch ($error) {
+                case E_NOTICE:
+                    $error = 'Notice';
+                    break;
+                case E_WARNING:
+                    $error = 'Warning';
+                    break;
+                case E_ERROR:
+                    $error = 'Fatal Error';
+                    break;
+                default:
+                    $error = 'Unknown Error';
+                    break;
+            }
+            $message = 'PHP ' . $error .  ':  ' . $ex->getMessage() . ' in ' . $ex->getFile() 
+                     . ' on line ' . $ex->getLine();
+            error_log($message);
+        }
+    }
+    
     public function fetch()
     {
-        $this->sendHTTPCode($this->template);
+        $this->logError();
+        $this->sendHTTPCode();
         return $this->view->fetch($this->getTemplate());
     }
 }

app/FrontController.php

@@ -32,6 +32,9 @@ class FrontController
     private function __construct()
     {
         ErrorHandler::init();
+        if (DEBUG == true) {
+            Profiler::getInstance()->start();
+        }
         $this->router = new Router();
     }
     
@@ -96,7 +99,6 @@ class FrontController
     public function execute()
     {
         try {
-            
             $request = Env::getRequestUri();
             $route = $this->getRouter()->route($request);
             if (!$route) {
@@ -107,14 +109,16 @@ class FrontController
             if (!class_exists($action_class)) {
                 throw new GeneralException('Action class "' . $action_class . '" not found.');
             }
+            
             $action = new $action_class();
             $layout_class = $route->getLayout();
             if (!class_exists($layout_class)) {
                 throw new GeneralException('Layout class "' . $layout_class . '" not found.');
             }
-            $layout = new $layout_class();
-            return $layout->fetch($action);
             
+            $layout = new $layout_class();
+            $html = $layout->fetch($action);
+            return (!DEBUG) ? $html : Profiler::getInstance()->end($html);
         } catch(Exception $e) {
             if (DEBUG == true) {
                 return ErrorHandler::showDebug($e);

app/PagerAction.php

@@ -0,0 +1,66 @@
+<?php
+/**
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage app
+ * @since 2010-03-07
+ * @version SVN: $Id$
+ * @filesource $URL$
+ */
+
+class PagerAction extends ViewAction
+{
+    public $page;
+    public $last_page;
+    
+    //protected $num_rows;
+    
+    protected $offset = 0;
+    protected $count  = 0;
+    protected $limit;
+
+    public function __construct($count, $limit = 20)
+    {
+        $this->count = $count;
+        $this->limit = $limit;
+        parent::__construct();
+    }
+    
+    protected function execute()
+    {
+        $page = (int) Env::Get('p');
+        $this->last_page = ceil($this->count/$this->limit);
+        $this->page = ($page <= $this->last_page && $page > 0) ? $page : 1;
+        $this->offset = $this->limit * ($this->page - 1);
+        //$this->num_rows = ($this->limit + $this->offset) <= $this->count ? ($this->limit + $this->offset) : $this->count;
+    }
+
+    public function getOffset()
+    {
+        return $this->offset;
+    }
+
+    public function getLimit()
+    {
+        return $this->limit;
+    }
+    
+    protected function getTemplate()
+    {
+        $template = ($this->template) ? $this->template : substr(get_class($this), 0, -6/*strlen('Action')*/);
+        return '/actions/' . $template;
+    }
+    
+
+/*    public function setNumRows($num_rows)
+    {
+        $this->num_rows = $num_rows;
+    }
+*/    
+    /*function prepare()
+    {
+        $this->templater->assign('page', $this->page);
+        $this->templater->assign('page_max', $this->max_page_num);
+    }*/
+}

cache/CacheKey.php

@@ -0,0 +1,72 @@
+<?php
+/**
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage Cache
+ * @since 2010-03-10
+ * @version SVN: $Id$
+ * @filesource $URL$
+ */
+
+class CacheKey
+{
+    
+    protected $key;
+    protected $params = '';
+    protected $expire = 0;
+    
+    /**
+     * @param string $key
+     * @param mixed $params
+     * @param iCacheable $cacheable
+     * @return CacheKey
+     */
+    public function __construct($key, $params = array(), $cacheable)
+    {
+        $this->key = $key;
+        if (!$cacheable instanceof iCacheable) {
+            throw new GeneralException('CacheKey depends on iCacheable instance');
+        }
+        $this->cache  = $cacheable->getCache();
+        $this->expire = $cacheable->getKeyExpire($this->key);
+        $this->params = (is_array($params)) ? implode('', $params) : $params;
+    }
+    
+    protected function getCacheKey()
+    {
+        $params = ($this->params) ? ('_' . $this->params) : '';
+        return $this->key . $params;
+    }
+    
+    protected function getExpire()
+    {
+        return $this->expire;
+    }
+    
+    /**
+     * @param int $expire
+     */
+    public function setExpire($expire)
+    {
+        $this->expire = $expire;
+    }
+    
+    public function get()
+    {
+        return $this->cache->get($this->getCacheKey());        
+    }
+    
+    /**
+     * @param mixed $value
+     */
+    public function set($value)
+    {
+        return $this->cache->set($this->getCacheKey(), $value, $this->expire);
+    }
+    
+    public function del()
+    {
+        return $this->cache->del($this->getCacheKey());
+    }
+}

cache/CacheKeySet.php

@@ -0,0 +1,48 @@
+<?php
+/**
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage Cache
+ * @since 2010-03-10
+ * @version SVN: $Id$
+ * @filesource $URL$
+ */
+
+class CacheKeySet extends CacheKey
+{
+    public function get()
+    {
+        $set = $this->cache->get($this->key);
+        $item_key = $this->getCacheKey();
+        
+        if (!is_array($set) || !array_key_exists($item_key, $set)) {
+            return false;
+        }
+        return $this->cache->get($item_key);
+    }
+    
+    /**
+     * @param mixed $value
+     */
+    public function set($value)
+    {
+        $set = $this->cache->get($this->key);
+        if (!is_array($set)) {
+            $set = array();
+        }
+        
+        $item_key = $this->getCacheKey();
+        if (!$this->cache->set($item_key, $value, $this->expire)) {
+            return false;
+        }
+        
+        $set[$item_key] = $this->cache->getExpire($this->expire);
+        return $this->cache->set($this->key, $set, $this->expire);
+    }
+    
+    public function del()
+    {
+        return $this->cache->del($this->key);
+    }
+}

cache/MemcacheCache.php

@@ -17,10 +17,26 @@ class MemcacheCache extends Cache
      */
     protected $connection = null;
     
+    protected $key_salt = null;
+    
+    /**
+     * One hour to live default
+     * 
+     * @var int
+     */
+    protected $expire = 3600;
+    
+    protected $keys = array();
+    
     public function __construct($config)
     {
         $this->connection = new Memcache();
         
+        if (isset($config['key_salt'])) {
+            $this->key_salt = $config['key_salt'];
+            unset($config['key_salt']);
+        }
+        
         $required = array('hostname', 'port');
         foreach ($config as $c) {
             foreach ($required as $option) {
@@ -42,7 +58,7 @@ class MemcacheCache extends Cache
      */
     public function add($key, $value, $expire = 0)
     {
-        return $this->connection->add($key, $value, null, $expire);
+        return $this->connection->add($this->getKey($key), $value, null, $this->getExpire($expire));
     }
     
     /**
@@ -54,7 +70,7 @@ class MemcacheCache extends Cache
      */
     public function decrement($key, $decrement = 1)
     {
-        return $this->connection->decrement($key, $decrement);
+        return $this->connection->decrement($this->getKey($key), $decrement);
     }
     
     /**
@@ -66,7 +82,7 @@ class MemcacheCache extends Cache
      */
     public function del($key)
     {
-        return $this->connection->delete($key);
+        return $this->connection->delete($this->getKey($key));
     }
     
     /**
@@ -82,12 +98,12 @@ class MemcacheCache extends Cache
     /**
      * Retrieve item from the cache
      * 
-     * @param mixed $key
+     * @param string $key
      * @return mixed
      */
     public function get($key)
     {
-        return $this->connection->get($key);
+        return $this->connection->get($this->getKey($key));
     }
     
     /**
@@ -99,7 +115,7 @@ class MemcacheCache extends Cache
      */
     public function increment($key, $increment = 1)
     {
-        return $this->connection->increment($key, $increment);
+        return $this->connection->increment($this->getKey($key), $increment);
     }
     
     /**
@@ -112,7 +128,7 @@ class MemcacheCache extends Cache
      */
     public function replace($key, $value, $expire = 0)
     {
-        return $this->connection->replace($key, $value, null, $expire);
+        return $this->connection->replace($this->getKey($key), $value, null, $this->getExpire($expire));
     }
     
     /**
@@ -125,6 +141,28 @@ class MemcacheCache extends Cache
      */
     public function set($key, $value, $expire = 0)
     {
-        return $this->connection->set($key, $value, null, $expire);
+        return $this->connection->set($this->getKey($key), $value, null, $this->getExpire($expire));
+    }
+    
+    /**
+     * @param string $key
+     * @return string
+     */
+    protected function getKey($key)
+    {
+        if (!isset($this->keys[$key])) {
+            $this->keys[$key] = md5($this->key_salt . $key);
+        }
+        return $this->keys[$key];
+    }
+    
+    public function getExpire($expire)
+    {
+        return ($expire > 0) ? $expire : $this->expire;
+    }
+    
+    public function cleanKeys()
+    {
+        $this->keys = array();
     }
 }

cache/iCacheable.php

@@ -0,0 +1,24 @@
+<?php
+/**
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage cache
+ * @since 2010-03-12
+ * @version SVN: $Id$
+ * @filesource $URL$
+ */
+
+interface iCacheable
+{
+    /**
+     * @return Cache
+     */
+    public function getCache();
+    
+    /**
+     * @param string $key
+     * @return Expiration time in seconds
+     */
+    public function getKeyExpire($key);
+}

classes/Pager.class.php

@@ -1,78 +0,0 @@
-<?php
-/**
- * PagerAction
- *
- * @copyright NetMonsters <team@netmonsters.ru>
- * @link
- * @package Nakon
- * @subpackage face
- * @since 04.02.2008
- * @version SVN$
- * @filesource $URL$
- */
-
-
-class Pager extends Action
-{
-    public $template_dir = '.';
-
-    protected $current_page = 1;
-    protected $max_page_num;
-    protected $num_rows;
-    protected $limit;
-    protected $start_offset = 0;
-    protected $count = 0;
-
-    public function __construct($count, $current_page = 1, $records_limit = 20)
-    {
-        parent::__construct();
-
-        $this->count = $count;
-        $this->limit = $records_limit;
-
-        $this->max_page_num = ceil($this->count/$this->limit);
-        $this->current_page = ((int)$current_page <= $this->max_page_num && (int)$current_page > 0) ? (int)$current_page : 1;
-
-        $this->start_offset = $this->limit * ($this->current_page - 1);
-        $this->num_rows = ($this->limit + $this->start_offset) <= $this->count ? ($this->limit + $this->start_offset) : $this->count;
-    }
-
-    /**
-     * Возвращает текущую страницу
-     *
-     * @return int
-     */
-    public function getPage()
-    {
-        return $this->current_page;
-    }
-
-    public function startOffset()
-    {
-        return $this->start_offset;
-    }
-
-    public function limit()
-    {
-        return $this->limit;
-    }
-
-    public function setNumRows($num_rows)
-    {
-        $this->num_rows = $num_rows;
-    }
-
-    function init()
-    {
-        $this->template = "Pager";
-    }
-
-    function prepare()
-    {
-        $this->templater->assign('page', $this->current_page);
-        $this->templater->assign('page_max', $this->max_page_num);
-        $this->templater->assign('limit', $this->limit);
-        $this->templater->assign('count', $this->count);
-    }
-}
-?>

exception/ErrorHandler.php

@@ -51,6 +51,9 @@ class ErrorHandler
         }
         $text = '<table class="req"><thead><tr><th>Variable</th><th>Value</th></tr></thead><tbody>';
         foreach ($array as $key => $value) {
+            if (is_array($value)) {
+                $value = print_r($value, true);
+            }
             $value = ($value) ? htmlentities($value, ENT_QUOTES, 'UTF-8') : '&nbsp;';
             $text .= '<tr><td>' . $key . '</td><td class="code"><div>' . $value . '</div></td></tr>';
         }
@@ -68,6 +71,7 @@ class ErrorHandler
      */
     static public function showDebug($exception)
     {
+        ob_clean();
         $class = get_class($exception);
         
         $method = Env::Server('REQUEST_METHOD', '');

model/DbDriver.php

@@ -91,9 +91,10 @@ abstract class DbDriver
     /**
      * @param string $table
      * @param mixed $bind
+     * @param mixed $on_duplicate
      * @return int Affected rows count
      */
-    public function insert($table, $bind)
+    public function insert($table, $bind, $on_duplicate = array())
     {
         $columns = array();
         foreach ($bind as $col => $val) {

model/DbStatement.php

@@ -34,31 +34,6 @@ abstract class DbStatement
         $this->sql    = $sql;
     }
     
-    /**
-     * @param mixed $style
-     * @return array
-     */
-    public function fetchAll($style = Db::FETCH_OBJ)
-    {
-        $data = array();
-        while ($row = $this->fetch($style)) {
-            $data[] = $row;
-        }
-        return $data;
-    }
-
-    /**
-     * @param string $field
-     */
-    public function fetchField($field)
-    {
-        $row = $this->fetch(Db::FETCH_ASSOC);
-        if (isset($row[$field])) {
-            return $row[$field];
-        }
-        return false;
-    }
-
     public function bindParam($param, &$value)
     {
         if ($this->map === null) {
@@ -139,6 +114,31 @@ abstract class DbStatement
         $this->close();
     }
 
+    /**
+     * @param mixed $style
+     * @return array
+     */
+    public function fetchAll($style = Db::FETCH_OBJ)
+    {
+        $data = array();
+        while ($row = $this->fetch($style)) {
+            $data[] = $row;
+        }
+        return $data;
+    }
+
+    /**
+     * @param string $field
+     */
+    public function fetchField($field)
+    {
+        $row = $this->fetch(Db::FETCH_ASSOC);
+        if (isset($row[$field])) {
+            return $row[$field];
+        }
+        return false;
+    }
+    
     /* Abstract methods */
     
     abstract public function fetch($style = Db::FETCH_OBJ);

model/Model.php

@@ -12,7 +12,7 @@
  * @filesource $URL$
  */
 
-abstract class Model
+abstract class Model implements iCacheable
 {
 
     /**
@@ -29,13 +29,26 @@ abstract class Model
      */
     protected $cache;
     
+    /**
+     * Custom expiration time for keys
+     * 
+     * @var mixed
+     */
+    protected $cache_keys  = array();
+    
+    /**
+     * Caches to clean.
+     * 
+     * @var mixed
+     */
+    protected $caches_clean = array();
+
     protected $table;
 
     protected $connection = 'default';
 
     protected $key        = 'id';
 
-
     public function __construct()
     {
         $this->db = Db::connect($this->connection);
@@ -73,37 +86,21 @@ abstract class Model
      */
     public function get($id)
     {
-        $sql = 'SELECT * FROM ' . $this->table() . ' WHERE ' . $this->identify($this->key) . '=' . (int) $id;
-        return $this->db->query($sql)->fetch();
-    }
-
-    /**
-     * @param array $data
-     * @return int Affect row or id of inserted field.
-     */
-    public function save($data)
-    {
-        $key = isset($data[$this->key]) ? $data[$this->key] : false;
-        $result = false;
-        if ($key) {
-            unset($data[$this->key]);
-            $result = $this->update($data, $this->identify($this->key) . '=' . (int) $id);
-        } else {
-            $result = $this->insert($data);
-        }
-        return $result;
+        $sql = 'SELECT * FROM ' . $this->table() . ' WHERE ' . $this->identify($this->key) . '=?';
+        return $this->fetch($sql, $id);
     }
 
     /**
      * @param array $data
+     * @param array $on_duplicate
      * @return int Id of inserted row
      */
-    public function insert($data)
+    public function insert($data, $on_duplicate = array())
     {
-        if (!$this->db->insert($this->table(false), $data)) {
+        if (!$res = $this->db->insert($this->table(false), $data, $on_duplicate)) {
             return false;
         }
-        return $this->getInsertId();
+        return ($on_duplicate) ? $res : $this->getInsertId();
     }
 
     /**
@@ -146,11 +143,99 @@ abstract class Model
     /**
      * @return Cache
      */
-    protected function cache()
+    public function getCache()
     {
         if (!$this->cache) {
             $this->cache = Cacher::get(Config::get(__CLASS__, 'MemcacheCache'));
         }
         return $this->cache;
     }
+    
+    /**
+     * @param string $key
+     * @return int
+     */
+    public function getKeyExpire($key)
+    {
+        return (isset($this->cache_keys[$key])) ? ($this->cache_keys[$key] * 60) : 0;
+    }
+    
+    /**
+     * @param string $name
+     * @param array $params
+     * @return CacheKey
+     */
+    protected function cacheKey($name, $params = array())
+    {
+        if (substr(strtolower($name), -3, 3) == 'set') {
+            return new CacheKeySet($name, $params, $this);
+        }
+        return new CacheKey($name, $params, $this);
+    }
+    
+    /**
+     * @param CacheKey | CacheKeySet $cache
+     */
+    protected function addCleanCache($cache)
+    {
+        $this->caches_clean[] = $cache;
+    }
+    
+    protected function cleanCaches()
+    {
+        // cleaning caches
+        foreach ($this->caches_clean as $cache) {
+            $cache->del();
+        }
+        $this->caches_clean = array();
+    }
+    
+    /**
+     * @param string $sql
+     * @param array $params
+     * @param string $field
+     * @param CacheKey | CacheKeySet $cache_key
+     */
+    protected function fetchField($sql, $params = array(), $field, $cache_key = null)
+    {
+        if (!$cache_key || !$result = $cache_key->get()) {
+            $result = $this->db->query($sql, $params)->fetchField($field);
+            if ($cache_key) {
+                $cache_key->set($result);
+            }
+        }
+        return $result;
+    }
+    
+    /**
+     * @param string $sql
+     * @param array $params
+     * @param CacheKey | CacheKeySet $cache_key
+     */
+    protected function fetch($sql, $params = array(), $cache_key = null)
+    {
+        if (!$cache_key || !$result = $cache_key->get()) {
+            $result = $this->db->query($sql, $params)->fetch();
+            if ($cache_key) {
+                $cache_key->set($result);
+            }
+        }
+        return $result;
+    }
+    
+    /**
+     * @param string $sql
+     * @param array $params
+     * @param CacheKey | CacheKeySet $cache_key
+     */
+    protected function fetchAll($sql, $params = array(), $cache_key = null)
+    {
+        if (!$cache_key || !$result = $cache_key->get()) {
+            $result = $this->db->query($sql, $params)->fetchAll();
+            if ($cache_key) {
+                $cache_key->set($result);
+            }
+        }
+        return $result;
+    }
 }

model/MySQLiDriver.php

@@ -15,6 +15,28 @@
 class MySQLiDriver extends DbDriver
 {
     
+    public function insert($table, $bind, $on_duplicate = array())
+    {
+        $columns = array();
+        foreach ($bind as $col => $val) {
+            $columns[] = $this->quoteIdentifier($col);
+        }
+        $values = array_values($bind);
+        
+        if ($on_duplicate) {
+            $update = array();
+            foreach ($on_duplicate as $col => $val) {
+                $update[] = $this->quoteIdentifier($col) . '=' . $this->quote($val);
+            }
+            $on_duplicate = ' ON DUPLICATE KEY UPDATE ' . implode(', ', $update);
+        }
+        
+        $sql = 'INSERT INTO ' . $this->quoteIdentifier($table)
+             . ' (' . implode(', ', $columns) . ') VALUES (' . $this->quote($values) . ')'
+             . (($on_duplicate) ? $on_duplicate : '');
+        return $this->query($sql)->affectedRows();
+    }
+    
     /**
      * @param mixed $sql
      * @return DbStatement
@@ -72,7 +94,6 @@ class MySQLiDriver extends DbDriver
         }
         
         if (is_bool($value)) {
-            var_dump($value);
             return (int) $value;
         }
         

model/MySQLiStatement.php

@@ -16,9 +16,15 @@
 class MySQLiStatement extends DbStatement
 {
     
+    /**
+     * Fetches single row
+     * 
+     * @param mixed $style
+     * @return mixed
+     */
     public function fetch($style = Db::FETCH_OBJ)
     {
-        if (! $this->result) {
+        if (!$this->result) {
             return false;
         }
         
@@ -77,7 +83,13 @@ class MySQLiStatement extends DbStatement
          * @var MySQLi
          */
         $mysqli = $this->driver->getConnection();
+        if (DEBUG) {
+            $profiler = Profiler::getInstance()->profilerQuery($sql);
             $result = $mysqli->query($sql);
+            $profiler->end();
+        } else {
+            $result = $mysqli->query($sql);
+        }
         if ($result === false) {
             throw new Exception($mysqli->error, $mysqli->errno);
         }

util/Profiler.php

@@ -0,0 +1,82 @@
+<?php
+/**
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage util
+ * @since 2010-03-09
+ * @version SVN: $Id$
+ * @filesource $URL$
+ */
+
+class Profiler
+{
+    
+    protected $start = null;
+    protected $end   = null;
+    
+    protected $queries = array();
+    
+    static protected $instance = null;
+    
+    private function __construct()
+    {
+        if (DEBUG == false) {
+            throw new GeneralException('Need to turn on DEBUG before use.');
+        }
+    }
+    
+    /**
+     * Refuse cloning
+     */
+    private function __clone(){}
+    
+    /**
+     * @return Profiler
+     */
+    static public function getInstance()
+    {
+        if (!isset(self::$instance)) {
+            self::$instance = new self();
+        }
+        return self::$instance;
+    }
+    
+    /**
+     * @param string $query
+     * @return QueryProfiler
+     */
+    public function profilerQuery($query)
+    {
+        $profiler = new QueryProfiler($query);
+        $this->queries[] = $profiler;
+        return $profiler;
+    }
+    
+    public function start()
+    {
+        $this->start = microtime(true);
+    }
+    
+    public function end($html)
+    {
+        $this->end = microtime(true);
+        if (stripos($html, '</body>') == False) {
+            return $html;
+        }
+        return str_ireplace('</body>', $this->getOutput() . '</body>', $html);
+    }
+    
+    protected function getOutput()
+    {
+        $html = '<div style="clear:both; font:12px monospace; margin: 5px;">'
+              . 'Elapsed time: ' . round(($this->end- $this->start) * 1000) . 'ms.<br/>'
+              . 'Queries: ' . count($this->queries) . '<br/>';
+        
+        foreach ($this->queries as $query) {
+            $html .= '[' . round($query->getElapsed() * 1000) . 'ms] ' . $query->getQuery() . '<br/>';
+        }
+        $html .= '</div>';
+        return $html;
+    }
+}

util/QueryProfiler.php

@@ -0,0 +1,39 @@
+<?php
+/**
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage util
+ * @since 2010-03-09
+ * @version SVN: $Id$
+ * @filesource $URL$
+ */
+
+class QueryProfiler
+{
+    
+    protected $query = '';
+    protected $start = null;
+    protected $end   = null;
+    
+    public function __construct($query)
+    {
+        $this->query = $query;
+        $this->start = microtime(true);
+    }
+    
+    public function end()
+    {
+        $this->end = microtime(true);
+    }
+    
+    public function getQuery()
+    {
+        return $this->query;
+    }
+    
+    public function getElapsed()
+    {
+        return $this->end - $this->start;
+    }
+}

view/PHPView.php

@@ -9,11 +9,15 @@
  * @filesource $URL$
  */
 
+/**
+ * @method ViewHelperGet get()
+ */
 class PHPView implements iView
 {
     
     protected $path      = '';
     protected $variables = array();
+    protected $helpers   = array();
     protected $extension = '.phtml';
     protected $template  = '';
     
@@ -69,6 +73,31 @@ class PHPView implements iView
         return htmlentities($var, ENT_QUOTES, 'UTF-8');
     }
     
+    /**
+     * Helpers call
+     * 
+     * @param mixed $name
+     * @param mixed $args
+     * @return ViewHelper
+     */
+    public function __call($name, $args)
+    {
+        $helper = $this->getHelper($name);
+        return call_user_func_array(array($helper, $name), $args);
+    }
+    
+    protected function getHelper($name)
+    {
+        if (!isset($this->helpers[$name])) {
+            $class = 'ViewHelper' . ucfirst($name);
+            if (!class_exists($class)) {
+                throw new GeneralException('View helper "' . $class . '" not found.');
+            }
+            $this->helpers[$name] = new $class($this);
+        }
+        return $this->helpers[$name];
+    }
+    
     protected function getTemplatePath($template)
     {
         return $this->path . $template . $this->extension;

view/helpers/ViewHelper.php

@@ -0,0 +1,24 @@
+<?php
+/**
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage View
+ * @since 2010-03-09
+ * @version SVN: $Id$
+ * @filesource $URL$
+ */
+
+abstract class ViewHelper
+{
+    
+    /**
+     * @var PHPView
+     */
+    protected $view = null;
+    
+    public function __construct($view)
+    {
+        $this->view = $view;
+    }
+}

view/helpers/ViewHelperGet.php

@@ -0,0 +1,57 @@
+<?php
+/**
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage View
+ * @since 2010-03-09
+ * @version SVN: $Id$
+ * @filesource $URL$
+ */
+
+class ViewHelperGet extends ViewHelper
+{
+    
+    protected $get;
+    
+    public function get($replace)
+    {
+        $get = $this->getSanitizedRequest();
+        if (!is_array($replace)) {
+            $replace = array($replace);
+        }
+        foreach ($replace as $key => $value) {
+            if (is_int($key)) {
+                unset($get[$value]);
+            } else {
+                $get[$key] = $this->impl($key, $value);
+            }
+        }
+        return '?' . $this->view->escape(implode('&', $get));
+    }
+    
+    protected function getSanitizedRequest()
+    {
+        if ($this->get === null) {
+            $get = Env::Get();
+            foreach ($get as $key => $value) {
+                $this->get[$key] = $this->impl($key, $value);
+            }
+        }
+        return $this->get;
+    }
+    
+    protected function impl($name, $value)
+    {
+        if (is_array($value)){
+            $result = array();
+            foreach ($value as $key => $val) {
+                $result[] = $name . '[' . $key . ']=' . $val;
+            }
+            $result = implode('&', $result);
+        } else {
+            $result = $name . '=' . $value;
+        }
+        return $result;
+    }
+}