[Zope] Using DTMLFile or PageTemplateFile in methods

Mon, 23 Jul 2001 12:26:03 +0200

Still not working!

It was::
 index_html = PageTemplateFile('index', globals())
 which was working fine

I tried::
 def index_html(self):
      " "
      return "<html>hello</html>"
which also worked.

Then I tried::
  def index_html(self):
        " "
        # 'simple' only contains "<html>hello</html>"
        return PageTemplateFile('simple', globals())
which caused a NotFound supposedly meaning that the index_html was "broken".

I also tried your advice::
  def index_html(self):
        " "
        # 'simple' only contains "<html>hello</html>"
        # call, call the PageTemplateFile() so that it returns HTML, not
object
        return PageTemplateFile('simple', globals()) ()
which gives me this error:
Error Type: AttributeError
Error Value: 'string' object has no attribute 'other'

  File C:\Program Files\zope\lib\python\Shared\DC\Scripts\Bindings.py, line
351, in _bindAndExec
    (Object: simple)
  File <string>, line 1, in ?
  File C:\Program Files\zope\lib\python\Shared\DC\Scripts\Bindings.py, line
304, in _getTraverseSubpath
    (Object: simple)
AttributeError: (see above)

Bare in mind that 'simple.zpt' contains only <html>hello</html> and works
fine the static way.

If this is a bug or can't be done easily, I'm going to have to use my .zpt
files to create ZPT instances in Zope instead.

> Peter Bengtsson writes:
>  > I use ZPT files for my templates for my Python product development.
>  > This is what I do:
>  >
>  > def manage_addInstance(self,id):
>  >      self._setObject(id, Instance(id))
>  >
>  > class Instance(SimpleItem):
>  >       def __init__(self,id):
>  >              self.id = id
>  >       # in the products folder there is a file called index.zpt
>  >       index_html = PageTemplateFile('index', globals())
>  >
>  > Now, this works, but consider the following extension to the class.
>  >
>  > class Instance(SimpleItem):
>  >       def __init__(self,id):
>  >              self.id = id
>  >       def which_index_html(self):
>  >              return PageTemplateFile('index', globals())
>  >
>  >       index_html = which_index_html
>  >
>  > That does NOT work! It looks like a small change, but I might be wrong.
>  > How to do this anyone?
> The second approach need an additional "call".
>
> ZPublisher is ready to call the "index_html" once.
>
>   In the first case, this calles in fact the PageTemplate
>   and back comes the rendered template.
>
>   In the second case, ZPublisher again calls "index_html"
>   but the result is the PageTemplate itself, and not
>   the rendered result.
>
> Use:
>
> def which_index_html(self):
>     return PageTemplateFile('index', globals())()
>
> i.e. "call" the PageTemplate!
>
>
>
> Dieter