Magma August 2006

magma@lists.squeakfoundation.org

12 participants
31 discussions

Magma, Lava, Seaside
by Brent Pinkney 09 Aug '06

09 Aug '06

Hi, This is just to let all know that a) Chris's ;atest Magma release announced on the list seems to be fine. This includes the new #where: query API. Very nice b) I have released a new Lava which uses this API. Once the dust has settled I will modify the optimiser to exploit the new query API. c) I have released a new 'Magma seaside' package which works with the new query API and Seaside's canvas API. For those who need it now: 1. Start with Squeak 3.8.1 (6744) 2. Install Seaside2.6b (lr-68 or higher) 3. Install MagmaServerLoader and load Chris's latest monticellos 4. Install Magma seaside 5. Install the latest seasideSushiStoreWithwMagma.cs.gz from http://minnow.cc.gatech.edu/squeak/5817 If you get this far a workspace should open (WAStore workspace). Just follow the instructions. I appreciate that this may seem confusing - it is just that we have been working on a major enhancement to Magma (complex indexed queries) at the same time Seaside moved to the canvas API. Step 3 above is the tricky one if you do not follow Chris's instructions accurately - I am sure Chris will release a MagmaServerLoader monticello to simplify step 3 shortly. Magma is a great compliment to Seaside - please feel free to email me if you need help. Brent

2 2

[ANN] MagmaServerLoader-cmm.19 - Complex Queries
by Chris Muller 09 Aug '06

09 Aug '06

Brent and I are pleased to announce completion of complex-query functionality for MagmaCollections. Magma users can now simultaneously enjoy the transparency of an object database with high-performance multi-attribute querying similar to relational databases. For specific information: http://minnow.cc.gatech.edu/squeak/5859 For general information about Magma: http://minnow.cc.gatech.edu/squeak/2665 This functionality is now part of the one-click "Loader" install. If anyone has any questions please feel free to ask. Cheers, Chris

4 6

Magma-Seaside Setup/Install Problem
by Dan Shafer 08 Aug '06

08 Aug '06

I have been trying for a couple of days to get Magma to install and play nice with Seaside to no avail. Platform specifics: OS X 10.4.7. Squeak 3.8 full with Seaside installed and confirmed running just fine. I've installed 0Magma8 from SqueakMap. At least I think I have. But though I've nstalled both the server and the client, when I browse their sources, I find almost all packages are completely empty. A friend gave me a link that took me to a page on the Ga Tech server minnow about Magma and Seaside. There, I read: "The Magma repository on SqueakSource includes a package Magma seaside. This package may be installed after installing Magma and Seaside to provide Seaside applications a suggested interface to a Magma repository, and a supplemental panel in Seaside's Configuration utility to point the application to any local or remote Magma repository." Cool! So I go to SqueakSource.com where I have a login, log in and do a search for Magma Seaside. No such animal. I try just Magma and a small list appears. Still no Magma Seaside. Somehow, however, I end up with three .mcz files on my desktop. After a bit of rummaging, I find out these are Monticello packages. OK. Never worked with those before, but I know there's a Monticello browser in the image so I fire it up, point it at those files and load them in order: client, server, seaside. I browse the code and, again, virtually all the packages are empty. Not sure what's going on here, but I proceed anyway. On the Ga Tech Wiki, I read the page on Magma and there I find the following suggested getting-started code: MagmaRepositoryController create: '/Users/dshafer/Desktop/myMagmaFolder' root: Dictionary new I type it in, accept it, get the black window of death that tells me it didn't work, and check my desktop. Sure enough, it didn't work. I'm out of ideas, time and patience. But I'll try to find more of the last two if someone can help me with the first one. Dan

3 3

package list
by Chris Muller 08 Aug '06

08 Aug '06

Just to reiterate, to run Magma beta with queries, start with standard "production" Magma, loading: MagmaServerLoader-cmm.18.mcz Then load these newer versions of these individual packages needed for this beta: Ma base additions-cmm.65 Ma object serialization-cmm.150 Ma special collections-cmm.66 Finally, here are the new updated packages for today's release. If you have already been running the queries beta code you can just load these: Magma server-cmm.175 Magma client-cmm.212

1 0

new queries beta packages
by Chris Muller 08 Aug '06

08 Aug '06

I've posted new versions of individual packages for Magma: - improved query correctness and stability, particularly with respect to local (uncommitted) changes to the underlying MagmaCollection. - Merged improvments from Keith Hodges; create: and delete:, which now permit a local path specification. Thanks! - added MagmaCollection>>#where:distinct:sortBy:descending: and MagmaCollection>>#where:distinct:sortedBy:descending: convenience methods. Thank you to everyone who has been helping test this queries function, this is turning out to be a great and useful feature. We're still in beta, but getting closer, ever closer.. I still need a test cases to cover changing keys and ensuring the querying and sorting works correctly among the changed keys. Please let me know if you find any problems. Cheers, Chris

1 0

PostMaterialization?
by Keith Hodges 07 Aug '06

07 Aug '06

In pier PRKernal keeps a list of its instances. When accessing my Magma repository the instances of PRKernel are probably not in the PRKernel list. Looking around I can see various hooks for handling this kind of situation but I am not sure what to use. many thanks in advance Keith ___________________________________________________________ All New Yahoo! Mail Tired of Vi@gr@! come-ons? Let our SpamGuard protect you. http://uk.docs.yahoo.com/nowyoucan.html

2 1

KeyedSet
by Keith Hodges 07 Aug '06

07 Aug '06

I was thinking to myself that I need a nice easy way of bunging objects into a collection and getting them out again. Kind of like a Dictionary where you can retrieve and object on a key, but kind of like a Set too. I thought I know what a Set which has Keyed behaviour! Lo and behond I found just the ticket. KeyedSet! Fantastic. I popped it into my root object in my brand new database. Copied loads of data over and slept on it. This morning I open a session on my database and discover that when Magma loads the database back in it appears to have lost its keyBlock: chris? best regards Keith ___________________________________________________________ To help you stay safe and secure online, we've developed the all new Yahoo! Security Centre. http://uk.security.yahoo.com

4 5

Fixes for pathname
by Keith Hodges 04 Aug '06

04 Aug '06

Dear Chris, sorry I sent the latest batch from the wrong account. I am trying to open maui on a local session. I cant seem to follow the directions here. I dont have a class MagmaBufferController http://minnow.cc.gatech.edu/squeak/57285728 best regards Keith

1 0

Fixes for pathname
by Keith Hodges 04 Aug '06

04 Aug '06

I am continuing the quest to allow pathnames relative to the image for the repository in order to make things more portable. Fixes attached for repository create/delete. best regards Keith

2 1

queries update
by Chris Muller 02 Aug '06

02 Aug '06

Made some good progress on the queries this weekend. Adventurers willing to risk bugs may download individual packages dated since June 1st on SqueakSource, here is that list: Ma Armored Code-cmm.105 Ma base additions-cmm.65 Ma object serialization-cmm.150 Ma special collections-cmm.65 Magma client-cmm.207 Magma server-cmm.172 Things are really starting to look good, but I still need to do some more testing, thanks for your patience and understanding. Should you happen to download the individual packages, please let me know if you find any problems. - Chris

2 2

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

Magma August 2006