[Zope] rendering the contents of ..

[J Cameron Cooper]

David Bear wrote:
> On 8/1/05, J Cameron Cooper <zope-l at jcameroncooper.com> wrote:
> 
>>David Bear wrote:
>>
>>>I am looking at a couple way of producing a qotd solution.
>>>
>>>one way is to put quotes in a folder. Then use objectvalues on the
>>>folder  and randomly select one of the items. I get get the objectid.
>>>but I don't know what I use to get the 'content' of the object.. what
>>>is the method to get the 'rendered' and unrendered content of an
>>>object.
>>>
>>>In this case I'm using objects of type file (setting content type to
>>>text/plain) (ofcourse the content is plain text)
>>>
>>>I may find the using a zpt, html, or stx object will work better. I'm
>>>hoping there is a method to get either a rendered view of the file,
>>>(if zope knows how to render it) or unrendered, and I'll worry about
>>>rendering it elsewhere.
>>
>>The contents of a File object can be gotten at simply by calling it. You
> 
> 
> sorry to be dense here. Its been a long time since I read the zope
> book. I have the following code:
> =============
> from Products.PythonScripts.standard import html_quote
> import random
> request = container.REQUEST
> RESPONSE =  request.RESPONSE
> # Return a string identifying this script.
> q = container.quotes.objectIds()
> print random.choice(q)()
> return printed
> =============
> 
> But this returns an TypeError, str is not callable. How do I get this
> code to return a random object from the quotes container?

Of course it does. What does 'objectIds' return? Answer: a list of ids 
(strings) and not objects. If you want objects, you must ask a different 
way, as another message provides.

Also, there's not particular reason to use the 'print' facility. You may 
simply say::

   return random.choice(q)()

and get the same effect.

		--jcc

>>can also get at the underlying data with the 'data' attribute, which is
>>useful if the contents are large (since it provides a 'Pdata' object
>>rather than a string.) This is just as it says in
>>http://www.zope.org/Documentation/Books/ZopeBook/2_6Edition/AppendixB.stx
>>
>>Other object types, like those that have to do rendering, you can just
>>call for the rendered content. Methods 'document_src' or 'read' will
>>usually work for the source.
>>
>>                --jcc
>>--
>>"Building Websites with Plone"
>>http://plonebook.packtpub.com
>>
> 
> 
>