Wiki source code of UpdateRatings

Last modified by Holger Dick on 2010/08/20 15:48
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<%
ratdoc = xwiki.getDocument("XWiki.RatStats")
rat2doc = xwiki.getDocument("XWiki.RatingStats")
userList = xwiki.getArrayList()
topUsers = xwiki.getHashMap()
pageList = xwiki.getArrayList()
pageRatings = xwiki.getHashMap()
existingUsersIndex = xwiki.getHashMap()
existingPagesIndex = xwiki.getHashMap()
Comparator comparator = Collections.reverseOrder();
allRatings = ratdoc.getObjects("XWiki.RatingClass")
allPerUserRatings = rat2doc.getObjects('XWiki.PerUserRatingsClass')
allPerPageRatings = rat2doc.getObjects('XWiki.PerPageRatingsClass')

/* Create a hashtable with all users and the count of their ratings */
for(rating in allRatings)
  {   
     /* --- first the top-rater statistics --- */
     user = ratdoc.display("user", rating)
     page = ratdoc.display("page", rating)
     stars = ratdoc.display("rating", rating).toInteger()
      
     if (userList.contains(user))
     {
         currentCount = topUsers.get(user, rating)
         currentCount ++
         topUsers.put(user, currentCount)
      }
     else
     {
         userList.add(user)
         topUsers.put(user, 1)
      }
     
     /* --- And now the ratings per page statistics --- */
     if (pageList.contains(page))
     {
         upAndDown = pageRatings.get(page)
         if(stars > 3)
         {
             upAndDown[0]++
         }else{
             upAndDown[1]++
         }
         pageRatings.put(page, upAndDown)
     }else{
         int[] upAndDown = new int[2]
         if(stars > 3)
          {
              upAndDown[0] = 1
              upAndDown[1] = 0
           }else{
              upAndDown[0] = 0
              upAndDown[1] = 1
          }
          pageRatings.put(page, upAndDown)
          pageList.add(page)
     }
  
 }

/* now we want to save the results as objects in another page so that they can
be easily retrieved. First, we check what users already have entries. */
int i = 0
for(user in allPerUserRatings)
  {
    username = rat2doc.display("username", user)
    existingUsersIndex.put(username, i)
    i++
}

/* save the count of ratings given for each user as an object of the class
'XWiki.PerUserRatingsClass'. If the user already has an object, we will change
this. Otherwise, a new one gets created. */
for(user in userList)
  {
     count = topUsers.get(user).toInteger()
    if(existingUsersIndex.containsKey(user))
    {
        currentIndex = existingUsersIndex.get(user)
        perUserObject = rat2doc.getObject('XWiki.PerUserRatingsClass', currentIndex)
        perUserObject.set('numberOfRatings', count)
    }else{
        perUserObject = rat2doc.newObject('XWiki.PerUserRatingsClass')
        perUserObject.set('username', user)
        perUserObject.set('numberOfRatings', count)
    }
  }

/* Now, let's save the statistics per page - similar to per user*/
i = 0
for(page in allPerPageRatings)
   {
     pagename = rat2doc.display("pagename", page)
     existingPagesIndex.put(pagename, i)
     i++
 }
for(page in pageList)
   {
     upAndDowns = pageRatings.get(page)
     if(existingPagesIndex.containsKey(page))
     {
        currentIndex = existingPagesIndex.get(page)
        perPageObject = rat2doc.getObject('XWiki.PerPageRatingsClass', currentIndex)
        perPageObject.set('upratings', upAndDowns[0].toInteger())
        perPageObject.set('downratings', upAndDowns[1].toInteger())
     }else{
         perPageObject = rat2doc.newObject('XWiki.PerPageRatingsClass')
         perPageObject.set('pagename', page)
         perPageObject.set('upratings', upAndDowns[0].toInteger())
         perPageObject.set('downratings', upAndDowns[1].toInteger())
     }
   }

/* Finally, we save the changes to the objects */
rat2doc.save('Updated Stats', true)
  
 /* Print the (up to) 5 users with the most rating
!< currently it sorts by users names, not their contributions
 sortedList = userList.sort(comparator)
 if(sortedList.size() > 5)
 {
     sortedList.removeRange(5, sortedList.size())
 }
 */
  
%>
Wiki source code of UpdateRatings

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