Beginners September 2008

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Re: Integrating Seaside and Flash
by Andy Burnett 06 Sep '08

06 Sep '08

Ramon and Cédrick Thanks to you both for your suggestions. I shall go and try some experiments. Cheers AB

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Arrays within arrays
by Charles Gray 06 Sep '08

06 Sep '08

Why doesn't this work? strength := Array new: 10. strength := #( #(0 0 0 0) #(0 0 0 0) #(0 0 0 0) #(0 0 0 0) #(0 0 0 0) #(0 0 0 0) #(2 1 0 0) #( 8 4 0 1) #(14 6 0 2) #(30 12 1 4)). I read that the contents of an array are objects and the arrays inside of strength are objects but Smalltalk simply refuses to accept this assignment. I didn't want to say a := #(0 0 0 0). b := #(2 1 0 0). c := #(8 4 0 1) ... etc. and then strength := #( a a a a a a b c ... etc but it appears this may be necessary. I suppose a, b, c, etc are temporary variables and will disappear after use but it seems like a terrible waste.

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Pre 1900 Date problems
by Rob Rothwell 06 Sep '08

06 Sep '08

How do I reference dates prior to 1900 in Squeak? When I print, for instance d := Date fromString: '01/01/1800', I get 1 January 3700. 1700 = 3600, etc... Should I be using a different Date/TimeStamp package for this sort of thing? Thanks, Rob

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Integrating Seaside and Flash
by Andy Burnett 05 Sep '08

05 Sep '08

I would like to include a Flash component in a seaside page. The component needs to write data back to the seaside app. I can think of two ways to communicate with the server: 1. define a static URL, that the component can call, and somehow process the returned data 2. have a form embedded on the page (that contains the flash component) and get the component to write its data into the form, and then submit it I was going towards the first option, but Ramon put a comment on my blog that made me realise that I probably don't understand the seaside approach yet. So, could anyone give me a simple example of what they feel is the best approach? cheers Andy

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Continuous Integration
by Anders Janmyr 04 Sep '08

04 Sep '08

Hi, I was wondering if there is a good way to do Continuous Integration. What I am looking for is something like: 1. Start a new basic image. 2. Load in required software packages from Squeak Map, Universe, Monticello, etc. 3. Load latest packages from my Monticello repository. 4. Run all the tests. 5. Produce a test report as a web page or as a mail. Thankful for any help. Anders -- http://anders.janmyr.com/

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how do I get rid of things that pointer finder points to?
by Freeman Mayberry 04 Sep '08

04 Sep '08

I figured out how to find bad reference to obsolete objects using pointer finder, but I still don't really understand how to hunt it down and get rid of it. -- Freeman Mayberry

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Exceptions in Squeak
by Waldemar Schwan 03 Sep '08

03 Sep '08

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 > What I wanted was an exception (try/except) in case any of the reads > failed. Corrupt files are an expected case that should be handled by > the program. So I can't crash while reading (or writing). Does Squeak > have exceptions? Or is there a Smalltalk pattern for this "try to > execute this, do something else if it fails"? That answer should > probably go into another thread. > > David You may take a look at BlockContext, exception protocoll. BlockContext is the class of [ ] . If you are searching for a try catch, try [ self doingThingsThatMayThrowErrors ] on: Error do: [ something ]. example: [ Error new signal] on: Error do: [Transcript show: 'error']. Regards Waldemar -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (Darwin) iEYEARECAAYFAki92ZkACgkQr7Iyerpx99kAXwCdHJNnjyMUr7UjK4HSvJdc4F8P 3TEAniVFQcpH6IdXfF1QDeyBDieEquFq =U60m -----END PGP SIGNATURE-----

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Beginners September 2008