Re(2): [Zope] The old dmtl namespace question

[David McCuskey]

try:

<dtml-with folder2>
  <dtml-var method2>
</dtml-with>

then you can also do:
<dtml-with folder2>
  <dtml-var "method2( _.None, _, other=params )">
</dtml-with>

the dtml-with ought to work. you're putting folder2 on the namespace
stack, and all methods contained within the dtml-with will be called on
folder2... which is what you want.

sorry i didn't catch that before. let me know if this helps.


good thing about the pain is that you'll never forget the lesson. :) i've
done this one a lot myself.

david



On 6/6/01, Tom enlightened me with:

>David,
>Thanks for the help, but I am still stuck.
>Since I am calling a method in another folder I am a bit stuck.
>
>If I use
>1. <dtml-var folder2.method2>
>  I get a KeyError error on folder2.method2
>  So I try
>2. <dtml-var "folder2.method2">
>  But it does not render
>  So I try
>3. <dtml-var "folder2.method2()">
>  But it looses the namespace and I get a KeyError on method3
>  So I try
>4. <dtml-var "folder2.method2( _.None, _ )">
>  But it behaves the same as 1.
>  So I knock my head on the table and scream!
>
>How do I call a method in another folder and have access to its namespace?
>
>Tom
>
>
>=> -----Original Message-----
>=> From: David McCuskey [mailto:david.mccuskey@bigfoot.com]
>=> Sent: Wednesday, 6 June 2001 1:17 PM
>=> To: tom@mooball.com; Zope Mailing List
>=> Subject: Re: [Zope] The old dmtl namespace question
>=>
>=>
>=> On 6/6/01, Tom enlightened me with:
>=>
>=> >I am sorry to ask the same question again, but I am still
>=> completely stumped
>=> >after many hours of trying and reading.
>=> >
>=> >I have:-
>=> >
>=> >Folder1
>=> >  - method1
>=> >Folder2
>=> >  - method2  <- this method calls method3
>=> >  - method3
>=> >
>=> >When I call an object like this...
>=> >>From  method1
>=> ><dtml-call "REQUEST.set('variable','value')">  <- I want to set some
>=> >variables too
>=> ><dtml-var "folder2.method2">
>=> >
>=> >The method works perfectly, except that it does not render.
>=> >
>=> >When I call it like this....
>=> >>From method1
>=> ><dtml-call "REQUEST.set('variable','value')">
>=> ><dtml-var "folder2.method2()">
>=> >
>=> >It seems to have no namespace at all and causes an error
>=> (method2 is calling
>=> >method3 and cant find it.)
>=> >
>=>
>=>
>=> here are different ways to call methods:
>=> 1. <dtml-var method>
>=> 2. <dtml-var "method( _.None, _ )">
>=> 3. <dtml-var "method()">
>=> 4. <dtml-var "method">
>=>
>=>
>=> 1 and 2 are the same: if you don't put quotes or parens, zope will pass
>=> _.None and _ for you. 99.99999% of the time you want to use these.
>=>
>=> 3 is calling the method, but drops the namespace stuff because the
>=> namespace variables are not explicitly included in the args. the
>=> parameter list is empty.
>=>
>=> 4 is well, number 4. watch out for number 4. like you said, it calls, but
>=> doesn't render.
>=>
>=>
>=>
>=>
>=> >I have found a few similar posts to the mailing lists and most responses
>=> >point to..
>=> >http://www.dieter.handshake.de/pyprojects/zope/book/chap3.html
>=> >which I have read over and over and still dont understand.
>=> >
>=> >It mentions _.None, and _ but I cant work out how they work.
>=> >
>=> >Basically I want method2 to have access to all the methods in folder2 as
>=> >well as all REQUEST variables.
>=> >
>=> >Can someone please show some examples of how to do this.
>=>
>=> do this:
>=>
>=> <dtml-var "your_method( _.None, _, param='value', param2='value2' )">
>=>
>=>
>=> my previous reply to "passing parameters to DTML methods" has some
>=> discussions and a pointer in the ZDP which i thought were good.
>=>
>=> check this from dieter:
>=>
>=>      <dtml-let param1="value1"
>=>                param2="value2"
>=> 	       ....>
>=>        <dtml-XXX method>
>=>      </dtml-let>
>=>
>=> david
>=>
>=> --
>=> David McCuskey
>=> david.mccuskey@bigfoot.com
>=>
>=>

-- 
David McCuskey
david.mccuskey@bigfoot.com