Hi Yves,
I believe you should do it the other way around.. A region belongs to
one and only one country so it is better to add a country field which
his a mono-select from the list of countries..
What you then need to do is add in the Country page a nice zone where
you list the region belonging to that country and add a nice form field
allowing to add a new region..
Since people will need to create structured data for region they can
choose the country at the same time..
Ludovic
Yves Langisch wrote:
Hi
I'm looking for a way to define some kind of associations between
classes. Let me explain by an example what I mean exactly:
I want to collect structured data for countries and its regions. To
achieve this I define to classes, CountryClass and a RegionClass (incl.
the sheets and templates). Now the user should be able to create new
country objects _and_ he should have the possibility (in the form
itself) to define which regions belong to a country.
I tried to achieve this by adding a database list property to the
country class with an appropriate hibernate query which selects all
region documents. This let the user select one or more regions for a
country. This is fine so far but
- Is there any more general or a better way to achieve this associations
(e.g. without hibernate queries)?
- How can I adapt my ClassSheet so that the selected region associations
are hyperlinked to the appropriate region objects?
Thanks
Yves
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