[aida] ODBC incompatibility?

Rob Rothwell r.j.rothwell at gmail.com
Tue Oct 28 03:47:51 CET 2008


Hello all...try this ODBC changeset, which works with Swazoo...
Sorry about the delay; I was at a conference without internet all last week!

I don't remember how I fixed it many many months ago; but it had something
to do with the constants that get loaded in the change set.

Hope this helps...

Rob

On Fri, Oct 17, 2008 at 5:46 AM, Bèrto ëd Sèra <berto.d.sera at gmail.com>wrote:

> FYI
>
> something weird really happens: if you search in the image for the class
> Timestamp you get 5 matches:
> TimeStamp
> SQLTimestamp
> SPTimestamp
> TimeStamp
> TimeStampTest
>
> the 1st and the 4th both will get you the to Magnitude subclass. It looks
> as if something badly puzzled the image.
> Berto
>
>
> 2008/10/17 Janko Mivšek <janko.mivsek at eranova.si>
>
> Hi Bèrto,
>>
>> This is really funny. Swazoo strictly uses Sport's SpTimestamp and not
>> any of Squeak versions of Timestamp, so I can't see how ODBC code can
>> override something by accident.
>>
>> Have someone a bit time to reproduce and investigate this case?
>>
>> Janko
>>
>> Bèrto ëd Sèra wrote:
>> > Hi!
>> >
>> > I observed something funny. To use ODBC for squeak I first need to file
>> > in the FFI package (otherwise I miss the ExternalEntity class). But this
>> > seems to break swazoo, which becomes irresponsive. On restarting the
>> > image it says that Timestamp does not understand a number of methods. I
>> > can't seem to find the point in FFI and/or ODBC that redefine anything
>> > in Timestamp, though. I surely find a new:
>> >
>> > Magnitude subclass: #TimeStamp
>> >     instanceVariableNames: 'date time'
>> >     classVariableNames: ''
>> >     poolDictionaries: ''
>> >     category: 'Kernel-Magnitudes'
>> >
>> >
>> > The broken method on SPTimestamp is
>> > ===================================
>> > asRFC1123StringOn: targetStream
>> >     "^self
>> >     Code taken from Swazoo Timestamp extenton with the following
>> > comment: FIXME: Assumes
>> >     server's clock is GMT. Should convert server's clock to GMT if it is
>> > not. Besides that,
>> >     this whole method is really ugly."
>> >     targetStream nextPutAll: (self underlyingTimestamp asDate weekday
>> > copyFrom: 1 to: 3);
>> >         nextPutAll: ', '.
>> >     self underlyingTimestamp *day* < 10 ifTrue: [targetStream nextPut:
>> $0].
>> >     self underlyingTimestamp asDate printOn: targetStream format: #(1 2
>> > 3 $  2 1).
>> >     targetStream space.
>> >     self underlyingTimestamp *printHMSOn:* targetStream.
>> >     targetStream nextPutAll: ' GMT'
>> > ===================================
>> >
>> > Now, how can this happen? The two classes have different names, don't
>> > they? In my visualworks days I cannot remember any such incident. Can
>> > anyone give me a hint?
>> >
>> > To repeat the bug:
>> > 1) Get a fresh once-click image
>> > 2) install FFI
>> > 3) install ODBC for Squeak
>> >
>> > Thanks
>> > Berto
>> >
>> >
>> > ------------------------------------------------------------------------
>> >
>> > _______________________________________________
>> > Aida mailing list
>> > Aida at aidaweb.si
>> > http://lists.aidaweb.si/mailman/listinfo/aida
>>
>> --
>> Janko Mivšek
>> AIDA/Web
>> Smalltalk Web Application Server
>> http://www.aidaweb.si
>> _______________________________________________
>> Aida mailing list
>> Aida at aidaweb.si
>> http://lists.aidaweb.si/mailman/listinfo/aida
>>
>
>
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> Aida mailing list
> Aida at aidaweb.si
> http://lists.aidaweb.si/mailman/listinfo/aida
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>
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