http://www.newton-inc.com/dev/techinfo/qa/qa.htmRegUnionSoup?newtSoup called MakeSoup which you can override. The MakeSoup method is responsible for calling RegUnionSoup (or otherwise making a soup) and then calling the FillNewSoup method if the soup is new/empty. MakeSoup is called normally as part of initializing the newtSoup object. Here is a sample MakeSoup method that will use a newly defined slot (from the newtSoup based template) for the user name.MakeSoup method. In particular, MakeSoup is used by the newtSoup implementation to initialize the object, so it needs to set up other internal slots. It's vital that the 'appSymbol slot in the message context be set to the passed argument, and that the 'theSoup slot be set to the soup or unionSoup that MakeSoup creates or gets. (Recall that RegUnionSoup returns the union soup, whether it previously existed or not.)GetSoupList method of union soups used in this code snippet returns an array with the member soups. It should be considered documented and supported. A newly created union will have no members, so FillNewSoup should be called. This is an improvement over the default MakeSoup method, which always calls FillNewSoup if the soup on the internal store is empty.'userName slot, which is looked up in the current context. As with soupName, soupDescr, etc, you should set a new userName slot in the frame in the allSoups frame in the newtApplication template. MakeSoup: func(appSymbol)
begin
self.appSymbol := appSymbol; // just do it...
self.theSoup := RegUnionSoup(appSymbol, {
name: soupName,
userName: userName,
ownerApp: appSymbol,
userDescr: soupDescr,
indexes: soupIndices,
});
if Length(theSoup:GetSoupList()) = 0 then
:FillNewSoup();
end;