Ben Schroeder wrote:
Hi Larry,
I've got GOODS installed and am tinkering with it. I have a usage
question. I've created a root as a Dictionary. With values as Ordered
Collections. Each Ordered Collection corresponds to a table in an
RDBMS, that I'm converting to Squeak.
Each item in the Collection is an array representing a tuple or row from
the table. My question is: how would I update an array item in the
Ordered Collection. Is there a better way, than
1) retrieving the entire collection: db root at: 'foo'
2) changing on of the items. someCollection at: x put: y
3) writing the collection back to the dictionary. db root at: 'foo'
put: someCollection
This is how I would do it, but step (3) shouldn't be necessary. You can say
someCollection := db root at: 'foo'.
someCollection at: x put: y.
db commit.
and the commit should pick up the new contents of the collection.
This implies that the database connection should remain open during
the session, correct?. and NOT closed after every read like I was
doing. -Larry
Also, the GOODS client uses proxies that only load objects when needed, so
step (1) should not be too expensive: it would probably load the
collection's list of the objects that were in it, but not all of the objects
themselves.
Hope this helps,
Ben Schroeder
_______________________________________________
Seaside mailing list
Seaside@xxxxxxxxxxxxxxxxxxxxxxxxxx
http://lists.squeakfoundation.org/listinfo/seaside
|
Try Searching:
servers, voip, java, networking, microsoft ...
|
|
|
| 
