initial commit

rooster.php

@@ -0,0 +1,45 @@
+<?php
+abstract class Rooster {
+    const SEMESTER1_YEAR = 2011;
+    const SEMESTER2_YEAR = 2012;
+    const SEMESTER1_WEEK = 36;
+    const SEMESTER2_WEEK = 36;
+
+    var $iYear;
+    var $iWeek;
+    var $sWeek;
+
+    function __construct() {
+        $this->iYear = (int) date('Y');
+        $this->iWeek = (int) date('W');
+        $this->setWeek($this->iYear, $this->iWeek);
+    }
+
+    function setWeek($iYear, $iWeek) {
+        if ($iYear == self::SEMESTER1_YEAR && $iWeek >= self::SEMESTER1_WEEK && $iWeek <= 52) {
+            $iWeeks = $iWeek - self::SEMESTER1_WEEK + 1;
+        } else if ($iYear == self::SEMESTER2_YEAR && $iWeek >= 1 && $iWeek < self::SEMESTER2_WEEK) {
+            $iWeeks = $iWeek - self::SEMESTER2_WEEK + 52 + 1;
+        } else {
+            throw new Exception('Given week is out of range');
+        }
+        $this->iYear = $iYear;
+        $this->iWeek = $iWeek;
+        $this->sWeek = $iWeeks;        
+    }
+
+    function nextWeek() {
+        if ($this->iWeek == 52) {
+            ++$this->iYear;
+            $this->iWeek = 0;
+        }
+        ++$this->iWeek;
+    }
+
+    function getWeek() {
+        return array($this->iYear, $this->iWeek);
+    }
+
+    abstract function getPage($sObject);
+    abstract function getData($sRooster = null);
+}