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<reinhard> good morning
<ayers> reinhard: good morning! :-)
<ayers> I've got my application partially running.
<ayers> But I have a few questions/issues.
<reinhard> shoot :)
<ayers> OK.. first off...
<ayers> I have a "Customer"
<ayers> I have a "Mailing" that refers to a "Customer"
<ayers> In the layout file of the customer I have a search position for tha customers 'code'.
<ayers> When I edit a mailing I therefor have a lookup for customer code to assign the customer... everthing is fine.
<reinhard> ok
<ayers> But now I have a mailingentry (mailing to mailing entry is a to many relationship)
<ayers> The Mailing also has a 'code' but I also want to add the customer 'code' as search field for the mailing entry.
<ayers> I can add the "customer" field, but that lookup will show me the internal gnue_id.
<ayers> (i.e. I can add the 'customer' search field to the 'mailing' layout.)
<ayers> So I suppose I need to actually add a 'customercode' field to the mailing that gets syncronized with the 'customer' attribute.
<reinhard> mailingentry : mailing is 1:n ?
<reinhard> no
<reinhard> mailingentry : mailing = n:1 ?
<ayers> the later, yes
<reinhard> and mailing : customer = n:1, too?
<ayers> ACK
<reinhard> ok, I see
<reinhard> I think I'd have to take a closer look at this
<ayers> I can send you the code... if you like?
<reinhard> I think that would help
<reinhard> thank
<reinhard> thanks
<ayers> sure
<ayers> it's on its way... I'll see if I can setup a svn repository for it...
<ayers> the active folders are ./etc ./classes ./layouts ./processes
<ayers> the ./barcode is an unrelated tool... ./form just conains experiments and ./schema was an attempt to load data into the tables defined by classes (but haven't got it to work yet)
<reinhard> oka
<reinhard> y
<reinhard> will look at it later
<ayers> Thanks!
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<ayers> how can one traverse realtionships (i.e. attributes referencing other classes) in OnChange code?
<ayers> I'm trying something like:
<ayers>     <procedure name="OnChange">
<ayers>       <![CDATA[
<ayers>         if propertyName == 'ADM_customer':
<ayers>           self.customercode = newValue.code
<ayers>       ]]>
<ayers>     </procedure>
<ayers> where I thought newValue would contain the object... but it seems to be a unicode string.
<reinhard> I think you might need something like
<reinhard> mycustomer = find('ADM_customer', conditions={'gnue_id': newValue})[0]
<reinhard> to find the object
<reinhard> or rather
<reinhard> mycustomer = session.get('ADM_customer', newValue)
<ayers> This may do the trick... but now I've got an acception because the code is trying to modify  read-only attribute.
<ayers> I thought read-only would only apply to the UI and not to code... Let my try to change that for now...
<reinhard> let me add that I consider it very unlikely that you really end up needing a redundant customer id in that class
<ayers> OK... :-)
<reinhard> but of course a learning effect is there when trying how it *would* be done if you needed it :)
<ayers> Well I will need it later anyway for presetting values.
<ayers> But actually I'd like them to be preset immdieatly (as in form like triggers) rather than on commit.
<ayers> But I suppose I would need a read form (as opposed to a .gld) to do that.
<reinhard> you mean preset for new records?
<reinhard> you would do that in OnInit
<ayers> Well preset depending on assigned values
<ayers> ie: Customers define prefered character sets.
<ayers> so when I create a new mailing and I assign the customer the character set of the mailing should be set to the same value as the customer.
<ayers> s/customer./customer's./
<ayers> During OnInit the customer hasn't been set naturally so I can't determine the character set for the mail at that time.
<ayers> To work around that, I could create three attributes:
<ayers> 1st: a calculated attribute from the customer's character set
<ayers> 2nd: a real property for the mailing's characterset which will remain empty by default
<ayers> 3rd: