Am 2006-01-24 um 20:57 schrieb Paul McNett:
What do you think about that solution? If a field is
designated as a 'list' type, the developer would have to be
responsible for writing method code that would accept the field
name as a parameter, and return a list to be used to populate the
list. We could even specify two types of list: 'list' and
'ddlist', with the former creating a ListBox and the latter
creating a dropdown list.
I've not yet an overview over dabo, so I can't really judge if this
approach is good.
I guess you/we will need some more types, like checkbox for yes/no
fields, radiobuttons or tri-state checkbox for small sets and I don't
know what else.
I guess the form xml file can't handle complicated stuff like e.g. a
picture selector, so there should be some possibility to define some
custom types easily.
I didn't yet look up how you handle the existing field types.
Currently, datanav.form defines three methods that could be of
interest:
getEditClassForField(self, fld) --> class to use on edit page
getSelectControlClassForField(self, fld) --> class to use on select
page
getSelectOptionsForField()(self, fld) --> options for use in the
select options dropdown
I've used getEditClassForField() to return dropdown lists and radio
groups, set with their Choices filled in from a lookup bizobj and
their DataSource and DataField set to the master bizobj. Pick an
item from the dropdown, and the key value propagates to the master
bizobj.
Similarly, I've used getSelectControlClassForField() to put a radio
box of choices to select from in the select page.
This isn't exactly what you are talking about here, but I just
wanted to point out what already exists.
Thank you for these hints!
I guess there's a lot possible with the existing dabo, but I imagined
I could just enhance AppWizard's creation, because it's near to my goal.
But it looks like I must choose another approach.
I didn't find the right access to dabo's code yet. While trying to
help with freeNotes, I reckognized that there's just too much
essential information not in the API docs or the wiki. I guess I'll
have to read and understand dabo's code myself, but at a first glance
it's 'indirect' in a way that I don't understand yet.
Greetlings from Lake Constance!
Hraban
---
http://www.fiee.net
http://www.cacert.org (I'm an assurer)
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