[Zope] dtml syntax- check file existence

[Sean Kelley]

Tried this out and it worked perfectly.  Thanks.

Satheesh Babu wrote:

>try this (not tested):
>
><dtml-if "_.hasattr(photos2.aq_explicit, id+'.thumb.jpg')">
>   has the image
><dtml-else>
>   no image
></dtml-if>
>
>see this for more info: http://www.zopelabs.com/cookbook/1001104105
>
>S Babu
>http://vsbabu.org/
>
>On Sun, 2002-12-15 at 12:24, Sean Kelley wrote:
>  
>
>>Hi
>>
>>I need help checking the existence of a file in a sub folder.
>>
>>
>>
>>if file(graphic) in sub folder exists
>>
>>  display graphic
>>
>>else
>>
>>  display message that there is no graphic
>>
>>
>>
>>The tricky part of this for me is that I have an ID for a graphic which 
>>is available in a <dtml-in> loop
>>
>>so the graphic I am testing the existence of is named "id.thumb.jpg" and 
>>is in a sub folder so if I do another dtml-in my ID is not available in 
>>the second in loop.
>>
>>
>>
>>A partial failed example:
>>
>><dtml-in photos2>
>>
>>     <dtml-if <dtml-var id>.thumb.jpg>                                
>>     // I know this is not right
>>
>>          <img src="/photos2/<dtml-var id>.thumb.jpg">        
>>            // and know id is not available at this level but not sure 
>>how to pass it along.
>>
>>     <dtml-else>
>>
>>             no image
>>
>></dtml-in> 
>>
>>
>>
>>
>>
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>
>
>  
>