Heres a snip of DTML that adds a property to the parent if the property doesn't exist. If you create a ZClass with this, it will modify the parent folder when called from within a DTML document, if you do it as a DTML Method, it will modify the parent document.
<dtml-if "hasProperty('z_count')"> <dtml-call "REQUEST.set('z_count', z_count + 1)"> <dtml-call "manage_changeProperties(REQUEST)"> <dtml-else> <dtml-call "manage_addProperty('z_count', 1, 'int' )"> </dtml-if> <<<
Now, if you wanted to Take a variable in a form (or link), and make it a property like in your example, you're method would look like this, Assuming the form had fields to pass the values as 'NewName:string' and 'NewValue:tokens', or your calling link ends with ?NewName:string=foo&NewValue:tokens=mytokens
<dtml-if "hasProperty(NewName)"> <dtml-call "REQUEST.set(NewName, NewValue)"> <dtml-call "manage_changePRoperties(REQUEST)"> <dtml-else> <dtml-call "manage_addProperty(NewName, NewValue)"> </dtml-if> <<<
I hope this helps! Now if only someone could answer why the behaivor changes between having it as a DTML method and a ZClass! (And how to fix it!) Message: 5 From: "Jason Cunliffe" <jasonic@nomadicsltd.com> To: <zope@zope.org> Subject: [Zope] Adding a new property over http Date: Thu, 14 Sep 2000 15:00:41 -0400 charset="iso-8859-1" Hello I asked this in longer form before, but it fell by the way I think.. How to add a property to a containing folder. Looking for DTML or External Method way to do this. We need a Method to to add a new folder property assigning an 'Id' = <somename> adn 'type' = 'tokens'. We need to be able to do this by passing the variable <somename> over http. thanks - Jason