I already need it badly.

Sure is just a comment Todd. I just refer to the discern at the time when you have a trade of of being creative and being conservative. Creative is risk conservaive is proven. I'm agresively creative when I have the risk reasonably managed and furiously conservative when I need a solid base so it does not inject me risk when I don't want it. So in short I was refering to reinventing a dictionary as risky.

Even if the root collection isn't a MagmaSet - the first collection I want to add is.

Then you put it under any meaning key like:

session begin. session root at: #system put: MySystemModel new; at: #securities put: (MagmaSet equivalenceAttributes: (Array with: #key)); yourself. session commit

So why doesn't that work?

Also, I've found that changing the root doesn't work. The change doesn't save. So I had to throw away the db and start over.

It should work when used like that. Seriously, why use in the root object somethig that is less flexible to design changes than a Dictionary kind of object? Why one will ever need to do that?

Also make sure to make changes in the recently readed object in a beggined transaction to then make changes to it and then commit.

cheers,

Sebastian

On Nov 8, 2007, at 6:17 AM, Sebastian Sastre wrote:

...

...

...

I want the root to act like a dictionary - so I set it up

like this:

...

...

| set | set := (MagmaSet equivalenceAttributes: (Array with: #key)). set addIndex: (MaSearchStringIndex attribute: #key). MagmaRepositoryController create: 'magma' root: set.

But Todd wait a minute, you're contradicting yourself.

Why you want

...

to put in root aSet if you want it to behave like aDictionary?

Frankly I would use a Btree in the root or even a plain Dictionary like:

MagmaRepositoryController create: 'magma' root: BTree

new ...or

...

MagmaRepositoryController create: 'magma' root: Dictionary new

They implements (more efficiently than a set of associations) #at:put: message because is it's nature to do it and in the end you seems to be trying to reivent with the set of associations.

Simple things will allow you to grow. Try not to get

involved with

...

complexities until you really need it badly,

cheers !

Sebastian