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By: MBt
Date: 2008-05-17
Time: 12:55
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ondata function not called in subtemplate
Hi,
I continue the problem I posted here http://www.tinybutstrong.com/forum.php?msg_id=8922 in a new thread to treat it as a global issue not as specific to hierarchical structure.
For new readers, here is the problem. I created a menu hierarchy script. it works fine in standalone mode but not when called as sub template. I found out that 'ondata' function is not called when it's in subtpl an I wonder what I did wrong.
Without any error nor success I tried :
1/ to declare the function in main script
2/ to declare the function in sub script
3/ to use ObjectRef and ~functionName (as in the example hereunder)
4/ to use a not existing function name (no error displayed when used as subtpl)
Main Data Class : menu.class.php
<?php
define('ROOT_IDX', 1);
$data_from_db = array(
array ( 'idx' => 1, 'parent' =>0, 'title' => 'Menu 1'),
array ( 'idx' => 2, 'parent' =>0, 'title' => 'Menu 2'),
array ( 'idx' => 3, 'parent' =>0, 'title' => 'Menu 3'),
array ( 'idx' => 4, 'parent' =>0, 'title' => 'Menu 4'),
array ( 'idx' => 5, 'parent' =>1, 'title' => 'Item 1.1'),
array ( 'idx' => 6, 'parent' =>1, 'title' => 'Item 1.2'),
array ( 'idx' => 7, 'parent' =>1, 'title' => 'Item 1.3'),
array ( 'idx' => 8, 'parent' =>2, 'title' => 'Item 2.1'),
array ( 'idx' => 9, 'parent' =>2, 'title' => 'Item 2.2'),
array ( 'idx' => 10, 'parent' =>2, 'title' => 'Item 2.3'),
array ( 'idx' => 11, 'parent' =>3, 'title' => 'Item 3.1'),
array ( 'idx' => 12, 'parent' =>3, 'title' => 'Item 3.2'),
array ( 'idx' => 13, 'parent' =>3, 'title' => 'Item 3.3'),
array ( 'idx' => 14, 'parent' =>4, 'title' => 'Item 4.1'),
array ( 'idx' => 15, 'parent' =>4, 'title' => 'Item 4.2'),
array ( 'idx' => 16, 'parent' =>4, 'title' => 'Item 4.3'),
array ( 'idx' => 17, 'parent' =>5, 'title' => 'Item 1.1.1'),
array ( 'idx' => 18, 'parent' =>5, 'title' => 'Item 1.1.2'),
array ( 'idx' => 19, 'parent' =>6, 'title' => 'Item 1.2.1'),
array ( 'idx' => 20, 'parent' =>6, 'title' => 'Item 1.2.2'),
array ( 'idx' => 21, 'parent' =>8, 'title' => 'Item 2.1.1'),
array ( 'idx' => 22, 'parent' =>8, 'title' => 'Item 2.1.2'),
array ( 'idx' => 23, 'parent' =>9, 'title' => 'Item 2.2.1'),
array ( 'idx' => 24, 'parent' =>11, 'title' => 'Item 3.3.1'),
array ( 'idx' => 25, 'parent' =>15, 'title' => 'Item 4.2.1'),
array ( 'idx' => 26, 'parent' =>21, 'title' => 'Item 2.1.1.1')
);
class Menu {
// ------------------- Properties -------------------
var $menus;
var $currParent;
// ------------------- Constructor -------------------
function Menu ($rootParent = 0){
$this->tags = array();
$this->currParent = $rootParent;
}
// ------------------- Methods -------------------
function fetchData() {
global $data_from_db;
foreach ($data_from_db as $idx => $menuItem) {
//group menuItems with parent ID
$this->menus[$menuItem['parent']][] = $menuItem;
}
//returns the root list of menuItems
return $this->menus[$this->currParent];
}
// ------------------- TBS data plugin -------------------
function Menu_open(&$source,&$query) {
$this->currParent = ($query) ; //query is %p1% where %p1% is ParentId
return $this ;
}
function Menu_fetch(&$db,$num) {
if (is_array($this->menus[$this->currParent]) && $num <= count($this->menus[$this->currParent])) {
return $this->menus[$this->currParent][$num-1] ;
} else {
return false ;
}
}
function Menu_close(&$db) {
$this->currParent = 0 ;
}
function on_load_data($BlockName,&$CurrRec,$RecNum) {
global $SrcSub;
// Add the source of the Subitem tables as a new field of the current row.
$CurrRec['subitems'] = str_replace('[root.idx]',$CurrRec['idx'],$SrcSub);
}
}
?>
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PHP source of subScript : menuTree.php
<?php
//Init TBS
if (isset($this)) {
//Called as subtemplate of TBS
$TBS =& $this;
global $menuTree; //in subtpl mode data MUST be in main tpl
} else {
//Standalone call
require_once("menu.class.php");
require_once("Tbs.class.php");
$TBS = new clsTinyButStrong;
$menuTree = new Menu();
}
$TBS->ObjectRef =& $menuTree;
//Load data
$rootMenus =& $menuTree->fetchData();
//Load template
$TBS->LoadTemplate('menuTree.html') ;
//logic can be found here : http://www.tinybutstrong.com/forum.php?msg_id=7900
// Save the source of the parentTree table
$SrcSub = $TBS->GetBlockSource('parentTree',false,false);
// Delete TBS tags in the template
$TBS->MergeField('parentTree','');
$TBS->MergeBlock('root',$rootMenus);
$TBS->MergeBlock('sub','~Menu','%p1%');
$TBS->Show() ;
?>
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HTML source of subScript : menuTree.html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>MenuTree sub-script</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
</head>
<body>
<ul >
<li >[root.title;block=li]
<ul >
[parentTree;block=ul]
<li >
[sub.title;block=li;bmagnet=ul;p1=[root.idx];ondata=~on_load_data]
<!-- whatever you type as ondata value, it will not raise an error when called as subtpl -->
[sub.subitems;protect=no;htmlconv=no;comm]
</li>
</ul>
</li>
</ul>
</body>
</html>
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PHP source of Main template : index.php
<?php
require_once("Tbs.class.php");
require_once("menu.class.php");
//called scripts
$scripts['menuTree'] = "menuTree.php";
//Data MUST be created in main script else it's not displayed
$menuTree = new Menu();
$TBS = new clsTinyButStrong ;
//Load template
$TBS->LoadTemplate('main.html') ;
$TBS->Show() ;
?>
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HTML source of Main template : main.html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>MenuTree main script</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
</head>
<body>
[var.scripts.menuTree;script=[val];subtpl;getbody]
</body>
</html>
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Thanks for your help.
MBt
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