[Zope] RE: Evaluating dtml from python

[Chuck Burdick (TT)]

A while after I submitted this, I figured it out.

Here's the fix:

return HTML.__call__(self)

This evaluates the string as DTML using the environment that called the
python method.
The example is modified below:

	<<<Example>>>

	from Globals import HTML

	def myproc():
		mystring = "<dtml-in mysqlselect><dtml-var id>, <dtml-var
value></dtml-in>"
		mydtml = HTML(mystring, globals())
		return HTML.__call__(self)

	<<<End of Example>>>



> -----Original Message-----
> From:	Chuck Burdick (TT) 
> Sent:	Monday, December 20, 1999 11:05 AM
> To:	'zope@zope.org'
> Subject:	Evaluating dtml from python
> 
> I have a string that I want to evaluate as dtml from within a python
> method.  How do I send the namespace to the HTML object so that it
> understands the <dtml-var> tags?
> 
> <<<Example>>>
> 
> from Globals import HTML
> 
> def myproc
> 	mystring = "<dtml-in mysqlselect><dtml-var id>, <dtml-var
> value></dtml-in>"
> 	mydtml = HTML(mystring, globals())
> 	return HTML.__call__()
> 
> <<<End of Example>>>
> 
> Right now when I call this from Zope, it will interpret standard HTML tags
> just fine.  Zope appears to parse the dtml tags, but I'm getting a
> KeyError on 'mysqlselect' which leads me to think that the HTML object
> does is not inheriting (or otherwise receiving) the current namespace.
> 
> How do I pass the namespace?  Is there a better way to do what I want?
> 
> Thanks in advance,
> Chuck Burdick
> 
> Web Administrator / Developer
> Trading Technologies, Inc.
> 
> chuck.burdick@tradingtechnologies.com
> (847) 424-8844
>