If you’re not already, you’ll want to hop on the Glorp mailing list and search the archives to see lot’s of examples of similar mappings. Glorp is far more capable than the simple inferred mappings can handle.

descriptionImage
^MAFileDescription new selectorAccessor: #image;
kind: MAExternalFileModel;
label: ‘Image’;
priority: 150;
yourself

The idea is to have the image on the disk and the informations (path, filename, type, size, …) on the database. With only this description and no modification, the generated form work to upload the file, but it try to save the MAExternalFileModel object as a byteArray directly on the database using “do:” method which is not implemented.
I’m new to squeak and have some problem to see how to solve this properly. Any idea ?

I’m going to tear the Magritte stuff out of it and use the package for Glorp and Seaside integration. I’ve come to prefer simple pragmas for meta data rather than Magritte. I put up that last version because it has some nifty schema migration automation in the Glorp descriptor class, even though I pretty much disabled the Magritte auto mappings.

Thanks a ton for this most helpful site! Have you thought about doing an “Intro to Seaside” book, including basics of Magritte persistence? Squeak By Example such a book would be a tremendous pair!

MTDescriptors createSchema

My database log file tells me that tables ‘mtuser’, ‘mtgroup’ and ‘association_object’ are created, and have no rows when I select * from them.

When I run the tests, my DB log shows:
Could not receive data from client: Connection reset by peer
unexpectedEOF on client connection
(followed by DELETE statements which I guess come from the cleanup method)

This assert line doesn’t pass:
self assert: testUser associations notEmpty.
(in MTAssociationTest >> testGroup )

Tables ‘association_object’ and ‘mtgroup’ are untouched, while ‘mtuser’ gets a blank user added (mtuserid is filled out, all other entries are blank).

As for getting Postgres up and running, I just do that standard install using the latest version from the webiste, and then change the authentication from md5 to password to avoid the complexity of getting cryptography working in Squeak. I’ve never has any trouble installing it or starting it up under XP, it just works.

With Gemstone’s release of it’s Seaside port in a GemstoneS/64 image, I’m likely to abandon Glorp and relational databases in general. I’d rather work with a Smalltalk image that just saves my objects directly and can scale to any level I need. If you’re doing anything new, I’d look into that.
Glorp is an object relational mapping layer, neither Magma nor OmniBase would have any use it of, they save objects directly.

I’m downloading your devImage now, is this Glorp “framework” specific to only Postgres? … or is there any config parameters that will let me use it with other DB’s (Odbc, Mysql, Magma, OmniBase) ?

I’ve tried to get PostGres running on my XP box without success.
(priviliged/non user being the stumbling block to even start the sever)

Are you running Postgres on an XP box by any chance? .. If so any links / pointers to how to get it running / working versions would be great.

Mike

(self registerAsApplication: #yourAppName)
    preferenceAt: #sessionClass put: YourSessionClass

I’ll try and keep squeak source up to date with my changes, I just uploaded current version with its dependencies. I’m still working with the old version of Glorp but hope to move to the new port when Todd has it working well enough.

This is of course a work in progress, so expect bugs and changes in design as I figure out the cleanest easiest way to do things. I’ll add features as I run into the need for them in my current projects, and hopefully integrate with Todds schema migration code soon removing the need to drop and recreate your schema when you change your model.

Of course, I’m always interested in any comments or discussion on the package.

#dynamicallyRefreshed is a good idea. You should put it in Magritte directly.