Main page caching (for performance reasons)

.gitmodules

@@ -28,3 +28,6 @@
 [submodule "modules/unittest"]
 	path = modules/unittest
 	url = git@github.com:kohana/unittest.git
+[submodule "modules/cache"]
+	path = modules/cache
+	url = git@github.com:Oreolek/cache.git

application/bootstrap.php

@@ -114,9 +114,8 @@ Kohana::modules(array(
    'debug-toolbar' => MODPATH.'debug-toolbar',     // Debug toolbar
 	 'image'         => MODPATH.'image',             // Image manipulation
 	 'kostache'      => MODPATH.'kostache',          // Logic-less Mustache views
-	 'sphinxql'      => MODPATH.'sphinxql',          // Full-text search via Sphinx
 	 'unittest'      => MODPATH.'unittest',          // Unit testing
-	//  'cache'      => MODPATH.'cache',             // Caching with multiple backends
+	 'cache'         => MODPATH.'cache',             // Caching with multiple backends
 	//  'codebench'  => MODPATH.'codebench',         // Benchmarking tool
 	));
 

application/classes/Controller/Post.php

@@ -50,10 +50,16 @@ class Controller_Post extends Controller_Layout {
   public function action_index()
   {
     $this->template = new View_Index;
+    $page_size = Kohana::$config->load('common.page_size');
     $this->template->items = ORM::factory('Post')
       ->where('is_draft', '=', '0')
       ->order_by('posted_at', 'DESC')
+      ->limit($page_size)
       ->find_all();
+    $this->template->item_count = ORM::factory('Post')
+      ->where('is_draft', '=', '0')
+      ->order_by('posted_at', 'DESC')
+      ->count_all();
   }
   
   /**
@@ -61,13 +67,40 @@ class Controller_Post extends Controller_Layout {
    **/
   public function action_read()
   {
+    $this->auto_render = FALSE;
+    $cache = Cache::instance('apcu');
+    if ($this->request->param('page') == 0)
+    {
+      $body = $cache->get('read_posts_0');
+      if (!empty($body))
+      {
+        $latest_change = Model_Post::get_latest_date();
+        if ($cache->get('latest_post') === $latest_change)
+        {
+          $this->response->body($body);
+          return;
+        }
+      }
+      $cache->delete('read_posts_0');
+      $cache->set('latest_post', $latest_change);
+    }
     $this->template = new View_Read;
     $this->template->title = 'Дневник';
+    $page_size = Kohana::$config->load('common.page_size');
     $this->template->items = ORM::factory('Post')
       ->with_count('comments', 'comment_count')
       ->where('is_draft', '=', '0')
       ->order_by('posted_at', 'DESC')
+      ->limit($page_size)
       ->find_all();
+    $this->template->item_count = ORM::factory('Post')
+      ->where('is_draft', '=', '0')
+      ->order_by('posted_at', 'DESC')
+      ->count_all();
+    $renderer = Kostache_Layout::factory('layout');
+    $body = $renderer->render($this->template, $this->template->_view);
+    $cache->set('read_posts_0', $body, 60*60*24); //cache main page for 1 day
+    $this->response->body($body);
   }
 
   /**
@@ -77,6 +110,7 @@ class Controller_Post extends Controller_Layout {
   {
     $this->template = new View_Index;
     $this->template->title = 'Cвежие записи';
+    $this->template->item_count = 10;
     $this->template->items = ORM::factory('Post')
       ->where('is_draft', '=', '0')
       ->order_by('posted_at', 'DESC')

application/classes/Model/Post.php

@@ -1,6 +1,5 @@
 <?php defined('SYSPATH') OR die('No direct access allowed.');
 class Model_Post extends ORM {
-
   /**
    * @return array validation rules
    **/
@@ -56,4 +55,10 @@ class Model_Post extends ORM {
     $result = $db->query(Database::SELECT, 'SELECT id FROM `'.$table.'` WHERE MATCH('.$db->quote($term).') LIMIT 100');
     return $result->as_array(NULL, 'id');
   }
+
+  public static function get_latest_date()
+  {
+    $query = DB::select(array(DB::expr('MAX(`posted_at`)'), 'max_date'))->from('posts');
+    return $query->execute()->get('max_date');
+  }
 }

application/classes/View/Index.php

@@ -17,6 +17,7 @@ class View_Index extends View_Layout {
    * Items to show
    **/
   public $items = NULL;
+  public $item_count = 0;
   /**
    * Index description
    **/
@@ -30,7 +31,7 @@ class View_Index extends View_Layout {
   public function get_paging()
   {
     $current_page = $this->get_current_page();
-    $item_count = count($this->items);
+    $item_count = $this->item_count;
     $page_size = Kohana::$config->load('common.page_size');
     $page_count = ceil($item_count / $page_size);
     if ($page_count === 1.0)
@@ -57,8 +58,11 @@ class View_Index extends View_Layout {
     {
       return 'Не найдено объектов для отображения.';
     };
-    $items = $this->filter_items();
-    foreach ($items as $item)
+    if ($this->item_count === count($this->items))
+    {
+      $items = $this->filter_items();
+    }
+    foreach ($this->items as $item)
     {
       array_push($result, $this->show_item($item));
     }

application/config/cache.php

@@ -0,0 +1,8 @@
+<?php defined('SYSPATH') or die('No direct script access.');
+return array
+(
+  'apcu' => array(
+		'driver'             => 'apcu',
+		'default_expire'     => 3600,
+  )
+);

modules/cache

@@ -0,0 +1 @@
+Subproject commit 3b384fed3c4896910471895d9ec51dc4893d0e9a

modules/sphinxql

@@ -1 +0,0 @@
-Subproject commit 0d6e016ffae2bd9da4a642bc5e6388efb2979d7b