[Zope] Creating links dynamically

Wed Jun 1 15:26:06 EDT 2005

>>Now, if you're uploading files to Zope, rather than the file system, 
>>it's a little different, in that you have to get the data from an 
>>object, and you'll probably have to split it by newline yourself.

> John Poltorak wrote:

> This is the way I had been thinking of setting it up, but can't find an 
> example of opening and reading such an object.

Here's a "Script (Python)" and a ZPT that does what I think you want. 
Notes:
   - I called the script "parse_file" so if you rename/relocate it
     fix the line in the ZPT to correspond.
   - I used a "File" in the same folder named "urls" hence I used
     "file=context.urls"
   - the CLONE thing is a bit confusing, but I needed it for my uses.

Cheers.

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## Script (Python) "parse_file"
##bind container=container
##bind context=context
##bind namespace=
##bind script=script
##bind subpath=traverse_subpath
##parameters=file, sepr='', clone=False
##title=
##
# Returns a list of the lines of FILE; if SEPR if given the lines
# are split into lists.

# Get the "file" as a single string
filetext = str( file )

# Start with nothing:
alist  = []

# Throw away CR (if any) then split at the NLs:
for line in filetext.replace('\r','').split('\n'):
     if line == "":
         continue
     #
     # Handle one-element-per-line differently:
     #
     if sepr and sepr in line:
         alist.append(line.split(sepr))
     elif clone and sepr:
          alist.append([line,line])
     else:
          alist.append(line)

return alist
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<html>
   <head>
     <title tal:content="template/title">The title</title>
   </head>
   <body>

     <h2><span tal:replace="here/title_or_id">content title or id</span>
         <span tal:condition="template/title"
               tal:replace="template/title">optional template 
title</span></h2>

    This is Page Template <em tal:content="template/id">template id</em>.
     <form name="aForm" method=GET action="/blah/blah">
     <span
tal:define="opts
python:here.parse_file(file=context.urls,sepr=',',clone=1)">
      <select name="url">
       <tal:block repeat="opt opts">
         <option value="optval"
               tal:content="python:opt[1]"
tal:attributes="value python:opt[0]">
               Option Text</option>
       </tal:block>
       <input type=submit>
      </select>
     </span>
    </form>
   </body>
</html>
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http://www.google.com/,Google
http://www.yahoo.com/,Yahoo!
http://www.zope.org/
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