Re: Problem with pagination

OzziNL — Wed, 16 Apr 2008 22:06:02 +1200

Case closed!
Don't know how this code became as pasted but this function is not like the function in the Stable.

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Problem with pagination

OzziNL — Wed, 16 Apr 2008 09:09:49 +1200

Hello, I am trying to solve a problem with pagination for two days now! I'll explain:

//on a controller
   function showActivities() {

      isset($_GET['start']) ? $start = $_GET['start'] : $start = 0;

      $list = DataObject::get("ActiviteitPage", "","", "","{$start}," . AANTAL_ITEMS_ACTIVITEITENOVERZICHT );

      return ($list) ? $list : null;
   }

On the template:

<% if showActivities.MoreThanOnePage %>
           <div id="head_itc_file">
           <% control showActivities.Pages %>
              <% if CurrentBool %>
                 <img src="/themes/inventheon/images/file_itc.gif" alt="" />
              <% else %>
                 <a href="$Link"><img src="/themes/inventheon/images/file_off_itc.gif" alt="" /></a>
              <% end_if %>
           <% end_control %>
           </div>
          <% end_if %>
       
//...cut
$ActiviteitenLijst.Count //PRINTS 3
<% include ActiviteitenLijst %> //PRINTS 3 ITEMS

Now the problem: The pagination returns pages for 107 items. Whatever the numer of items per page, it is based on 107 item (1 -> 107 pages, 10 -> 11 pages )

looking in the code I see the problem comes from:

$this->setPageLimits($start, $length, $query->unlimitedRowCount());

The last parameter is 107 and should be 5 (there are 5 ActiviteitPage items)

Now: it gets odd:

in this code in SQLQuery.php:

   function unlimitedRowCount( $column = "*" ) {
      $clone = clone $this;
      $clone->select = array("count($column)");
      $clone->limit = null;
      $clone->orderby = null;
      $clone->groupby = null;
      Debug::show($clone); // THIS DUMP LINE!!!!!!!!!!!!!!!!!!!!!!!!!!!
      $queryContent = singleton('SiteTree')->extendedSQL();
      return $queryContent->execute()->value();
   }

The dump line prints:

SQLQuery::__set_state(array( 'select' => array ( 0 => 'count(*)', ), 'from' => array ( 'SiteTree' => '`SiteTree_Live`', 'InventheonPage' => 'LEFT JOIN `InventheonPage_Live` ON `InventheonPage_Live`.ID = `SiteTree_Live`.ID', 'ActiviteitPage' => 'LEFT JOIN `ActiviteitPage_Live` ON `ActiviteitPage_Live`.ID = `SiteTree_Live`.ID', ), 'where' => array ( 0 => '`SiteTree_Live`.ClassName IN (\'ActiviteitPage\')', ), 'orderby' => NULL, 'groupby' => NULL, 'having' => NULL, 'limit' => NULL, 'distinct' => NULL, 'delete' => NULL, 'extension_instances' => array ( ), 'class' => 'SQLQuery', ))

I translate it myself to sql and that is:

SELECT count(*)
FROM SiteTree_Live
LEFT JOIN `InventheonPage_Live` ON `InventheonPage_Live`.ID = `SiteTree_Live`.ID
LEFT JOIN `ActiviteitPage_Live` ON `ActiviteitPage_Live`.ID = `SiteTree_Live`.ID
WHERE `SiteTree_Live`.ClassName IN ('ActiviteitPage')

And when I run it: 5 !!!!!!

But the function SQLQuery::unlimitedRowCount() returns 107

Please any help!!!
I don't understand this anymore...

Thanks,
Oscar

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