[Product-Developers] Implementing browser views with customer specific functionalities

[David Glick]

On 3/27/11 8:52 PM, Andreas Jung wrote:
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> Hi there,
>
> in my Produce&Publish application I have a browser view where a
> view I am using the formTabbing feature (<dl
> class="enableFormTabbing"...) for generating a conversion section
>
> Generate PDF | Generate PDF + HTML
>
> In customer projects we often need to extend this tabbed view
> with customer specific options like
>
> Generate PDF | Generate PDF + HTML | My Customer conversion | ....
>
> Is there a straight forward way to inject arbitrary tab titles and tab
> contents snippets here based on something.
>
> Viewlets are not appropriate here. Using actions is not an option (don't
> provide the "tab content").
>
> I am thinking of using named utilities here where the a utility
> could provide tab title and tab contents...not sure if there is a better
> way?
Or possibly use plone.app.registry, which gives you a basic UI and GS 
import/export for free. But, it doesn't do a great job of handling the 
case when you want a collection of items that all provide settings based 
on some schema, which is what you have here.

The named utility approach could work okay though. I recently did 
something like this in a branch of plone.app.dexterity, to look up 
actions associated with particular behaviors: 
http://dev.plone.org/plone/changeset/47668 (this doesn't include an 
analogue of your tab contents, but that's a small change). I might make 
it be a named adapter of the context and request (in essence a view) so 
that I could restrict availability to particular sites using browser 
layers, rather than having to register persistent utilities.  But that 
probably only matters if you have more than one Plone site per Zope 
instance.


----------		
David Glick
 Web Developer
 davidglick at groundwire.org
 206.286.1235x32

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