[Grok-dev] Site layout

Sebastian Ware sebastian at urbantalk.se
Tue Feb 24 07:00:46 EST 2009

I am just sending you some pointers in case you find it helpful. I use  
macros for site wide design:


I also use macros in lists such as search results to get content  
specific rendering:

   <tal:block repeat="searchResultItem view/searchResult">
       <tal:block metal:use-macro="searchResultItem/@@searchresult/ 
macros/swedish_template" />

and that searchresult.pt for a simple article could look something  
like this:

class SearchResult(grok.View):

   <tal:block metal:define-macro="swedish_template">
     <a tal:content="searchResultItem/title" tal:attributes="href  
python:view.url(searchResultItem)">menu item</a>
       <span class="author" tal:content="string:(Av ${searchResultItem/ 
         <tal:block replace="searchResultItem/preamble">Content</ 

Note how "searchResultItem" is used to refernce the search result item  
in both places.

I also call views on objects:

   <tal:block condition="view/edit_object" replace="structure view/ 
edit_object/@@subeditform" />

to render an edit form in a typical list/detail view. Here my  
subeditform.pt in turn references macros:

   <div id="inline_edit_form">
     <tal:block tal:condition="python:view.selectedForm == 'edit'">
         <tal:block metal:use-macro="context/@@editformtemplate/macros/ 
form_template" />
     <tal:block tal:condition="python:view.selectedForm == 'history'">
         <tal:block metal:use-macro="context/@@historyformtemplate/ 
macros/form_template" />

Here is an example of a couple of widgets that I have put in  
widgetstemplate.pt. It doesn't require much python:

class WidgetsTemplate(grok.View):
     grok.context(Interface) # works with any object that has an  

<tal:block metal:define-macro="tabs_widget">
     <tal:block repeat="tab view/tabs">
         <a class="tab" tal:condition="not:tab/selected"
             tal:attributes="href string:${tab/contextURL}/${tab/ 
             <div class="inactive_tab" tal:content="tab/viewTitle">Tab  
         <div class="active_tab"  tal:condition="tab/selected"  
tal:content="tab/viewTitle">Tab Label</div>
     <tal:block condition="python:hasattr(view, 'translations')">
         <div id="multilingual_selector" style="float:right; margin:  
             <select size="1" name="language_selector" >
                 <tal:block repeat="item view/translations">
                     <option tal:condition="python:view._selected_obj  
== item[1]"
                             tal:attributes="value python:item[1]"
                             tal:content="python:item[0]"> Name </ 
                     <option tal:condition="python:view._selected_obj ! 
= item[1]"
                             tal:attributes="value python:item[1]"
                             tal:content="python:item[0]"> Name </ 

<tal:block metal:define-macro="object_path_widget">
     <tal:block repeat="obj view/object_path">
         <a tal:condition="python:obj.has_key('objURL')"
            tal:attributes="href obj/objURL"
            tal:content="obj/title">The title</a>
         <tal:block condition="python:not obj.has_key('objURL')"
                    content="obj/title">The title</tal:block>
         <tal:block condition="not:repeat/obj/end"> / </tal:block>

They are called this way (context being any object with an interface):

   <tal:block metal:use-macro="context/@@widgetstemplate/macros/ 
object_path_widget" />

   <tal:block metal:use-macro="context/@@widgetstemplate/macros/ 
tabs_widget" />

Mvh Sebastian

23 feb 2009 kl. 22.51 skrev Brian Wolf:

> All:
> I'm still new to Grok.  Yes, I've read much of the tutorials, but  
> still am not clear on some issues which you may deem basic.  Try not  
> to flame me.
> To maintain a consistent layout throughout the site, most template  
> systems have a concept of breaking the page into parts, and  
> assigning rendering of the part to another (sub-template).  Very  
> easy in Cheetah, for example.  This seems like a more-or-less  
> universal issue; most probably many of you have already tackled it.
> What is the best way to achieve that in Grok?
> Using macros?  If so, how do you set up the macros/templates?
> Thanks.
> Brian
> -- 
> Brian Wolf
> brian at activustech.com
> Activus Technologies
> http://www.activustech.com
> 410.367-2958
> _______________________________________________
> Grok-dev mailing list
> Grok-dev at zope.org
> http://mail.zope.org/mailman/listinfo/grok-dev

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