[Twisted-web] Nevow upgrading trouble 2.0 ->4.1

[Matt Goodall]

Yun Mao wrote:
> Wonderful, problem solved! Thanks!!
> 
> Yun
> 
> BTW1, I just realized that I messed up with the versions -- they are 0.2
> and 0.4.1 respectively. But it seems to have caused no confusion yet. :)
> 
> BTW2, is it a "feature" of 0.2 or a bug of 0.4.1?

It's ok to have a pattern and a render attribute on an element - it's
something you'll use when rendering sequence items quite often, i.e.

  <ul nevow:data="numbers" nevow:render="sequence">
    <li nevow:pattern="item" nevow:render="data">NUMBER GOES HERE</li>
  </ul>

The difference between 0.2 and 0.4.1 (I think it changed in 0.3
actually) is that patterned elements are automatically removed from the
page; unless they're found and used by a renderer, of course.

Cheers, Matt


> 
> On Sat, 28 May 2005, Dave Cook wrote:
> 
>> On 5/28/05, Yun Mao <maoy+twisted at cis.upenn.edu> wrote:
>>
>>> nevow:render="status">running</a></td>
>>>      <td class="blue"><a nevow:pattern="messageItem"
>>> nevow:render="message"
>>
>>
>> I don't know if having both a pattern and a render method defined
>> causes a problem, but since you don't use this as a pattern, I'd just
>> leave that out and only include nevow:render="message".
>>
>> Dave Cook
>>
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>>
> 
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