[Zope] Newbie: TAL Conditions

[Florent Guillaume]

> This works fine.  However, where there isn't a record (i.e. an empty 
> string), a <TD> will not be defined so that it leaves ugly gaps in the 
> table.  To ensure that a '<TD>&nbsp;</TD>' replaces an empty string '' I 
> added two tal:condition statements.  This works, but is sort of ugly 
> looking as, in my head, it is the equivalent of two 'if' statements when 
> it should be an 'if/else'.  The below code works, however is there a 
> cleaner way to do this?
> 
> ### START CODE ###
> 
> <table border="1">
>   <tr><th>Date</th><th>Server</th></tr>
>   <tr tal:repeat="transfer container/getTransfers">
>     <td tal:content="structure transfer/time_stamp">time_stamp</td>
>     <td tal:condition="python: transfer.server==''">&nbsp;</td> 
>     <td tal:condition="python: transfer.server!=''"
>         tal:content="structure transfer/server">server</td>
>   </tr>
> </table>

You can just do:

<td tal:content="structure python:transfer.server or '&nbsp;'">server</td>

Florent

-- 
Florent Guillaume, Nuxeo (Paris, France)   CTO, Director of R&D
+33 1 40 33 71 59   http://nuxeo.com   fg at nuxeo.com