[BlueBream] Re : zope templating

Mon Jul 5 10:04:57 EDT 2010

Le 05/07/2010 00:31, Tamer Higazi a écrit :
> Thank you Christoph.
>
> Last question about this subject:
>
> let us say....
>
> JS content
>
> <head>
> <script language="text/javascript>
> function MyBlock()
> {
> ....
>
> ....
> }
> </script>
> <head>
>
>
> ....
>
> how would you make the function with ZTPL disappear?!

You can write a content provider (see zope.contentprovider), and since the 
contentprovider is a Python class, you can make it write something or nothing if 
you need.
If you need to include several pieces of js, consider writing a viewlet for each 
one, and create a viewlet manager for all the js viewlets.
Viewlets and content-providers are almost the same thing (they are just 
multi-adapters).

Another option is to use some tools like zc.resourcelibrary or some other z3c 
library for that usage.

>
> and the other question:
> Is there a way to make sub templating with ZTPL?!
>
> let us say one for the base layout
> the next one for the navigation left (menu)
> and the 3rd one for the content....

You do that with METAL macros.
You first write a master template in which you define some macros 
(metal:define-macro="...") and some slots (metal:define-slot="...").
for example on macro for the content, one for the left column, one for the head 
includes (js, css).

Then for a specific view, you'll use a child template, in which you specify a 
macro you want to use (use-macro="..."), and you provide some content for the 
slots in the macro (fill-slot="...").
You should read the docs of METAL macros.
A convenient way to register and use macro is with z3c.macro. It's much simpler 
than registering a view to access macros.

If you're not comfortable with macros, you can do eveything with viewlets and 
viewlet managers. Or even use some other advanced concepts such as z3c.pagelet.

>
>
> Tamer
>
>
>
> Am 01.07.2010 12:25, schrieb Christophe Combelles:
>> You have several ways of doing it:
>> either use the omit-tag Tal attribute, or use tal-replace if you don't
>> want the tag, or use an tag in the tal namespace like<tal:block
>> content=...
>> or use a macro to include something from a child template, or event
>> create a content-provider
>>
>> Christophe
>>
>> ----- Reply message -----
>> De : "Tamer Higazi"<th982a at googlemail.com>
>> Date : mer., juin 30, 2010 23:48
>> Objet : [BlueBream] zope templating
>> Pour :<bluebream at zope.org>
>>
>> Hi people!
>> Question, is there anyway to use the ZTPL to create content on the fly
>> whereever in the document? Or will I ALWAYS have to set the tal
>> attribute in a tag.
>>
>> for me specially usefull to decide generating JS code and take out
>> certain segments of a document if I want to.
>>