raw sketch of ratings category

base.php

@@ -438,6 +438,10 @@ class Page
                 return new PageAllCustoms ($id, $query, $n);
             case Base::PAGE_CUSTOM_DETAIL :
                 return new PageCustomDetail ($id, $query, $n);
+            case Base::PAGE_ALL_RATINGS :
+                return new PageAllRating ($id, $query, $n);
+            case Base::PAGE_RATING_DETAIL :
+                return new PageRatingDetail ($id, $query, $n);
             case Base::PAGE_ALL_SERIES :
                 return new PageAllSeries ($id, $query, $n);
             case Base::PAGE_ALL_BOOKS :
@@ -510,6 +514,10 @@ class Page
                 $tags = Tag::getCount();
                 if (!is_null ($tags)) array_push ($this->entryArray, $tags);
             }
+            if (!in_array (PageQueryResult::SCOPE_RATING, getCurrentOption ('ignored_categories'))) {
+                $rating = Rating::getCount();
+                if (!is_null ($rating)) array_push ($this->entryArray, $rating);
+            }
             if (!in_array ("language", getCurrentOption ('ignored_categories'))) {
                 $languages = Language::getCount();
                 if (!is_null ($languages)) array_push ($this->entryArray, $languages);
@@ -707,6 +715,27 @@ class PageSerieDetail extends Page
     }
 }
 
+class PageAllRating extends Page
+{
+    public function InitializeContent ()
+    {
+        $this->title = localize("rating.title");
+        $this->entryArray = Rating::getAllRatings();
+        $this->idPage = Rating::ALL_RATING_ID;
+    }
+}
+
+class PageRatingDetail extends Page
+{
+    public function InitializeContent ()
+    {
+        $rating = Rating::getRatingById ($this->idGet);
+        $this->idPage = $rating->getEntryId ();
+        $this->title = $rating->name;
+        list ($this->entryArray, $this->totalNumber) = Book::getBooksByRating ($this->idGet, $this->n);
+    }
+}
+
 class PageAllBooks extends Page
 {
     public function InitializeContent ()
@@ -750,6 +779,7 @@ class PageRecentBooks extends Page
 class PageQueryResult extends Page
 {
     const SCOPE_TAG = "tag";
+    const SCOPE_RATING = "rating";
     const SCOPE_SERIES = "series";
     const SCOPE_AUTHOR = "author";
     const SCOPE_BOOK = "book";
@@ -1029,6 +1059,8 @@ abstract class Base
     const PAGE_CUSTOMIZE = "19";
     const PAGE_ALL_PUBLISHERS = "20";
     const PAGE_PUBLISHER_DETAIL = "21";
+    const PAGE_ALL_RATINGS = "22";
+    const PAGE_RATING_DETAIL = "23";
 
     const COMPATIBILITY_XML_ALDIKO = "aldiko";
 

book.php

@@ -9,6 +9,7 @@
 require_once('base.php');
 require_once('serie.php');
 require_once('author.php');
+require_once('rating.php');
 require_once('publisher.php');
 require_once('tag.php');
 require_once('language.php');
@@ -44,6 +45,8 @@ define ('SQL_BOOKS_QUERY', "select {0} from books " . SQL_BOOKS_LEFT_JOIN . "
                                                     title like ?) {1} order by books.sort");
 define ('SQL_BOOKS_RECENT', "select {0} from books " . SQL_BOOKS_LEFT_JOIN . "
                                                     where 1=1 {1} order by timestamp desc limit ");
+define ('SQL_BOOKS_BY_RATING', "select {0} from books " . SQL_BOOKS_LEFT_JOIN . "
+                                                    where books_ratings_link.book = books.id and ratings.id = ? {1} order by sort");												
 
 class Book extends Base {
     const ALL_BOOKS_UUID = "urn:uuid";
@@ -62,6 +65,7 @@ class Book extends Base {
     const SQL_BOOKS_BY_CUSTOM = SQL_BOOKS_BY_CUSTOM;
     const SQL_BOOKS_QUERY = SQL_BOOKS_QUERY;
     const SQL_BOOKS_RECENT = SQL_BOOKS_RECENT;
+    const SQL_BOOKS_BY_RATING = SQL_BOOKS_BY_RATING;
 
     const BAD_SEARCH = "QQQQQ";
 
@@ -447,6 +451,10 @@ class Book extends Base {
         return self::getEntryArray (self::SQL_BOOKS_BY_AUTHOR, array ($authorId), $n);
     }
 
+    public static function getBooksByRating($ratingId, $n) {
+        return self::getEntryArray (self::SQL_BOOKS_BY_RATING, array ($ratingId), $n);
+    }	
+	
     public static function getBooksByPublisher($publisherId, $n) {
         return self::getEntryArray (self::SQL_BOOKS_BY_PUBLISHER, array ($publisherId), $n);
     }

index.php

@@ -10,6 +10,7 @@
     require_once ("config.php");
     require_once ("base.php");
     require_once ("author.php");
+	require_once ("rating.php");
     require_once ("publisher.php");
     require_once ("serie.php");
     require_once ("tag.php");

rating.php

@@ -0,0 +1,65 @@
+<?php
+/**
+ * COPS (Calibre OPDS PHP Server) class file
+ *
+ * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
+ * @author     Michael Pfitzner
+ */
+
+require_once('base.php');
+
+class Rating extends Base {
+    const ALL_RATING_ID = "cops:rating";
+
+    const AUTHOR_COLUMNS = "ratings.id as id, ratings.rating as rating, count(*) as count";
+    const SQL_ALL_RATINGS ="select {0} from ratings, books_ratings_link where books_ratings_link.rating = ratings.id group by ratings.id order by ratings.rating";
+    public $id;
+    public $name;
+    public $sort;
+
+    public function __construct($pid, $pname) {
+        $this->id = $pid;
+        $this->name = $pname;
+    }
+
+    public function getUri () {
+        return "?page=".parent::PAGE_RATING_DETAIL."&id=$this->id";
+    }
+
+    public function getEntryId () {
+        return self::ALL_RATING_ID.":".$this->id;
+    }
+
+    public static function getCount() {
+        $nAuthors = parent::getDb ()->query('select count(*) from ratings')->fetchColumn();
+        $entry = new Entry (localize("rating.title"), self::ALL_RATING_ID,
+            str_format (localize("ratings", $nAuthors), $nAuthors), "text",
+            array ( new LinkNavigation ("?page=".parent::PAGE_ALL_RATINGS)));
+        return $entry;
+    }
+
+    public static function getAllRatings() {
+        return self::getEntryArray (self::SQL_ALL_RATINGS, array ());
+    }
+
+    public static function getEntryArray ($query, $params) {
+        list ($totalNumber, $result) = parent::executeQuery ($query, self::AUTHOR_COLUMNS, "", $params, -1);
+        $entryArray = array();
+        while ($post = $result->fetchObject ())
+        {
+            $rating = new Rating ($post->id, $post->rating);
+            $bewertung=$post->rating/2;
+            $bewertung.=" Sterne";
+            array_push ($entryArray, new Entry ($bewertung, $rating->getEntryId (),
+                str_format (localize("bookword", $post->count), $post->count), "text",
+                array ( new LinkNavigation ($rating->getUri ()))));
+        }
+        return $entryArray;
+    }
+
+    public static function getRatingById ($ratingId) {
+        $result = parent::getDb ()->prepare('select rating from ratings where id = ?');
+        $result->execute (array ($ratingId));
+        return new Author ($ratingId, $result->fetchColumn ());
+    }
+}