I have a few fixes for DBXTalk: the Magritte descriptions generation (I switched Array output code-generation to the {...} format instead of #( ...) which was not allowing #conditions: to be properly formatted, which may be a problem for other smalltalk environments), and other trivial fixes.

Excellent!!! :)  Thanks. Can you send us the changes or directly commit? 

Band-aide approach...

DBXMagritteWriterVisitor>>writeDescription: aMADescription onClass: aClass
| properties descriptionMethod classes |
properties := ';
'
join:
(aMADescription properties associations
collect: [ :assoc | 
'{1}: {2}'
format:
{(assoc key). "assoc value printString"
((assoc value isKindOf: Array)
ifTrue: ['{', ('. ' join: assoc value  ), '}' ]
ifFalse: [ assoc value printString ])} ]).
...
- <clipped>

Mine is a horrible solution. Given that there are blocks in the conditions loops, the traditional array notation, #( ... ), will not work anyway, so the curly-brace approach is fine. I played around with #respondsTo: and tried to generalize, but hit problems because the value is often a symbol or string. so in the end, to get my classes generated, I just did the above quick-n-dirty patch.

The only other changes I have gone ahead and made were to make certain that more methods of DBXEntity  return the newly created attribute/entity, so that I could say something like the following:

(e hasOne: #DpAddress as: #mailingAddress)
label: 'Mailing Address';
priority: 400.

So all of the #hasOne:as:, #hasMany:as:, etc.  .... Oops... looks like late last night, when I was updating packages to see if i was missing anything, I lost my changes to those methods! There were only 4 or 5 such changes, and they were trivial.

Cheers. I like the DBXTalk approach. And Magritte too. In the two major projects I worked on over the years, and even on a couple of small side projects, I/we ended up using meta-language tools to add runtime behavior; and the starting code for new objects, at least in the one big project, was generated from a short-hand table of the meta-language specs. Very powerful. And lazy people like me are drawn to such things.

Nice work guys!
Cam