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

[Tom Cameron]

David,
Both work, Thanks.
The Bruising is settling down now :)

Tom

=> -----Original Message-----
=> From: David McCuskey [mailto:david.mccuskey@bigfoot.com]
=> Sent: Wednesday, 6 June 2001 1:58 PM
=> To: tom@cameron.to; Zope Mailing List
=> Subject: Re(2): [Zope] The old dmtl namespace question
=>
=>
=> 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
=>
=>