Hi,
On Sat, Oct 25, 2008 at 2:03 PM, Tobias Schlitt <[EMAIL PROTECTED]> wrote:
>> I especially like the concept of subclassing instead of including.
>
> Looks interesting, indeed. However, a major drawback here is, that one
> does not know, which parts are overwritten in which derived templates.
> That will create a maintanance mess, in larger projects.
It depends on the needs. Although variable overloading should be done
in the controller or possibly view-handling, you might need to let an
inexperienced programmer overload HTML headers per-template which
would be easier for him to do in HTML than source-hacking, depending
on the application.
On the other hand, when there really are 15-20 blocks on a complex page,
the consequences of having as much dynamic includes can be
as catastrophic.
I do agree that template inheritance can be easily abused and cause
drawbacks, as seen on their wiki with the "title" block for example[0].
Anyway, this is trivial to implement with any template language like eZ
Template:
- parse templates from the "children" to "parents" with the Template API,
- the first parsed block contents is used when another block with the same
name is found,
Example:
- render article.ezt which has {block "foo"}bar{/block}
- render layout.ezt which has {block "foo"}oldbar{/block}
- contents of block "foo" will have contents "bar".
This is compatible with MvcTools zone system.
Best regards, James.
[0]http://wiki.dwoo.org/index.php/TemplateInheritance
<?php
class yourTemplateBlocks implements ezcTemplateCustomBlock
{
public static function getCustomBlockDefinition( $name )
{
switch ($name )
{
case "block":
$def = new ezcTemplateCustomBlockDefinition;
$def->class = __CLASS__;
$def->method = $name;
$def->hasCloseTag = true;
$def->startExpressionName = "blockName";
$def->requiredParameters = array("blockName");
$def->optionalParameters = array();
return $def;
}
return false;
}
static public $blocks = array();
static public function block( $parameters, $text )
{
$name = $parameters['blockName'];
if( array_key_exists( $name, self::$blocks ) )
{
return self::$blocks[$name];
}
else
{
self::$blocks[$name] = $text;
return $text;
}
}
}
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