[Zope-dev] How does the submit magic work in, eg, ZCatalog manage_addIndex?

[R. David Murray]

On Thu, 18 May 2000, Chris McDonough wrote:
> yourcatalog._catalog.addIndex(id, 'FieldIndex')

Sorry, I started that email when I was about to ask the question
you answered, then figured it out myself and changed the email
body to ask a new question, but forgot to change the email
subject <frown>.
 
> "R. David Murray" wrote:
> > 
> > I was just looking at the ZCatalog code to figure out how to programatically
> > add an index to a Catalog.  I figured out how to do that fairly easily,
> > but the code I was looking at has me a bit mystified.  The method
> > manage_addIndex is defined.  The form that you use through the
> > management interface to add an index has a submit button whose name
> > is manage_addIndex:method.  OK, that all looks like reasonable
> > magic (magic because I don't know exactly what happens when a button
> > gets marshalled as a method).
> > 
> > Here's the part I don't understand: the form's action is set to the
> > Catalog itself.  manage_addIndex expects the index name and type
> > as its first two parameters.  Where does the magic come from that
> > turns the form submission into a correct call to manage_addIndex?
> > 
> > Probably I'm missing something obvious, but I will appreciate any
> > aid in increasing my Zope Zen level here <grin>.
> > 
> > --RDM
> > 
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> -- 
> Chris McDonough
> Digital Creations
> Publishers of Zope - http://www.zope.org
>