No free space in set
by Keith Hodges
(sorry wrong thread)
Error: There is no free space in this set!
I got this error when attempting to add a page
any ideas?
Keith
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16 years, 2 months
users/groups UI
by Keith Hodges
a first attempt
Name: Pier-Security-kph.33
Author: kph
Time: 22 June 2006, 2:03:14 am
UUID: 4efb7bda-2fd7-b04d-8858-41ae19a61f37
Ancestors: Pier-Security-lr.32
Added Pier Widget for User/group management
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16 years, 9 months
Re: Porting Magritte over to VisualWorks..
by Lukas Renggli
> > This is a subclass of the Squeak to VisualWorks code exporter
> > (implemented by Avi) adapted to properly export all the Magritte and
> > Pier packages and to get the namespaces right. Running the exporter
> > makes it possible to load all the code into VisualWorks, but I never
> > had the time to make it actually run in there ... so that is what
> > requires the next steps ...
> >
> Lukas,
>
> Just wondering if I wanted to go down this path, where can I find this
> code exporter tool -- is
> it on the Squeak side or the Visual Works side? I'd like to give it a
> shot even though I'm somewhat
> green behind the ears!
First of all you need PackageInfo-Exporters from SqueakMap. Then you
need the package "Magritte-VisualWorks" from
<http://mc.lukas-renggli.ch/magritte>. Evaluating "MADistribution
fileOutForVisualWorks" should produce you a couple of files that can
be loaded into VisualWorks, however I never actually tried to do it
;-)
Cheers,
Lukas
--
Lukas Renggli
http://www.lukas-renggli.ch
16 years, 9 months
[Pier] State of persistency ?
by Damien Cassou
Hi,
what is the state of the persistency layer in Pier ? What is implemented
and what is not ?
Thank you
Damien
16 years, 10 months
[Pier] Simplest persistency layer
by Damien Cassou
Hi,
since the current persistency models do not work (at least for me), I
have created my own which saves the image on each modification:
PRPersistency suclass: #PRSaveImagePersistency
...
PRSaveImagePersistency>>snapshot
[SmalltalkImage current snapshot: true andQuit: false]
forkAt: Processor userBackgroundPriority
PRSaveImagePersistency>>log: aContext
self snapshot
PRSaveImagePersistency>>do: aBlock
Nothing more
16 years, 10 months
Re: Trouble Following Pier Example in Master Thesis
by Bill Sun
!-- DIV {margin:0px;}-->Yes the PRForms work perfectly in the newest Pier. The main cause was indeed the missing readUsing: and write:using: methods.
Here's my attempt at understanding what went wrong:
In my case, the missing readUsing: method caused the readUsing: method in Object to respond instead, which read the description of a PREditFormCommand instance rather than the description from the metamodel of the PRForm instance, which was missing a bunch of descriptions.
I'm not quite sure how does Pier knows what descriptions it needs to look for when I fed it the wrong descriptions. Can anyone shed some light?
Thanks,
-Bill
----- Original Message ----
From: Damien Cassou <damien.cassou(a)laposte.net>
To: Bill Sun <billksun(a)yahoo.com>
Sent: Tuesday, July 25, 2006 11:02:46 AM
Subject: Re: Trouble Following Pier Example in Master Thesis
Bill Sun wrote:
> Damien,
>
> Ah, I see, the example from the thesis was integrated into the latest
> Pier. That's probably why you already have it.
>
> The main difference that I see from the newest Pier and the code that I
> entered manually is that the PREditFormCommand class has both readUsing:
> and write:using: methods in the latest Pier while the code that I
> entered from the master thesis did not.
Does it work on the new version ? Do you understand why it doesn't on
the old one ? More questions ?
Bye
16 years, 10 months
Re: Trouble Following Pier Example in Master Thesis
by Bill Sun
Damien,
Ah, I see, the example from the thesis was integrated into the latest Pier. That's probably why you already have it.
The main difference that I see from the newest Pier and the code that I entered manually is that the PREditFormCommand class has both readUsing: and write:using: methods in the latest Pier while the code that I entered from the master thesis did not.
-Bill
----- Original Message ----
From: Damien Cassou <damien.cassou(a)laposte.net>
To: Bill Sun <billksun(a)yahoo.com>
Sent: Tuesday, July 25, 2006 12:28:25 AM
Subject: Re: Trouble Following Pier Example in Master Thesis
Bill Sun wrote:
> Hi Damien,
Hi Bill,
> Thanks for your response! Here's the file-out.
>
> I'll try out the latest version of Magritte and Pier from
> Monticello later today.
Your class is already present in my image so you may find your answer
into the last Magritte and Pier versions on monticello (repository:
http://mc.lukas-renggli.ch/magritte or /pier)
If this is still not clear, ask here.
16 years, 10 months
Trouble Following Pier Example in Master Thesis
by Bill Sun
Hi all,
I've been having trouble with the Pier Adaptive Forms example in the thesis titled "Magritte — Meta-Described Web Application Development".
In particular, I've typed all the necessary code in my browser, prefixing "PR" and "MA" where I think should be appropriate. I can add the Form, but the "Edit Form" command that I created will not work. I get the following output when clicking on the "Edit Form" link:
(In HTML format)
PREditFormCommand(Object)>>doesNotUnderstand: #labelselfa PREditFormCommandtempsaMessagelabelinst varspropertiesnilcontexta PRContext stucture: 'Test Form' command: 'Edit Form'answernilmetamodela MAContainer label: '' comment: nilMASelectorAccessor>>read:self(MASelectorAccessor read: #label write: #label:)tempsaModela PREditFormCommandinst varspropertiesnilreadSelector#labelwriteSelector#label:PREditFormCommand(Object)>>readUsing:selfa PREditFormCommandtempsaDescriptiona MAStringDescription label: 'Label' comment: nilinst varspropertiesnilcontexta PRContext stucture: 'Test Form' command: 'Edit Form'answernilmetamodela MAContainer label: '' comment: nil[] in MACheckedMemento(MAMemento)>>pullRaw {[:each | result at: each put: (self model readUsing: each)]}selfa MACheckedMemento model: a PREditFormCommandtempsresulta Dictionary(a MAStringDescription label: 'Kind' comment: nil->'Edit Form' )eacha MAStringDescription label: 'Label' comment: nilinst varspropertiesnilmodela
PREditFormCommanddescriptiona MAPriorityContainer label: 'Container' comment: nilcacheniloriginalnil(snipped)
Also, there seems to be a missing closing parenthesis on page 41 in the Form>>description method definition.
The Pier setup is obtained by installing the Pier Unix Security 1.0.3-alpha from SqueakMap Package Loader. In this version of Pier, clicking on the "Environment" command link will also crash Pier, is this expected?
Note: I am new to Smalltalk and Squeak.
Thanks,
-Bill
16 years, 10 months
Re: isAbstract ?
by Lukas Renggli
>>> How would you calculate dynamically #isAbstract for a PRCommand
>>> for example ? If I remember correctly, for the project I've done
>>> using Magritte/Pier/MySQL, I implemented #doExecute for an
>>> abstract command.
>> Something along the lines ...
>> Behavior>>isAbstract
>> ^ self allSelectors anySatisfy: [ :each |
>> (self lookupSelector: each)
>> hasLiteral: #subclassResponsibility ] ]
>
>
> I think this works for real abstract classes. But it doesn't work
> when the developer expect subclasses to send super and not override
> particular methods.
True. Object is an example, but can't think of any other core class
that does this.
Lukas
--
Lukas Renggli
http://www.lukas-renggli.ch
16 years, 10 months
Re: isAbstract ?
by Lukas Renggli
> How would you calculate dynamically #isAbstract for a PRCommand for
> example ? If I remember correctly, for the project I've done using
> Magritte/Pier/MySQL, I implemented #doExecute for an abstract command.
Something along the lines ...
Behavior>>isAbstract
^ self allSelectors anySatisfy: [ :each |
(self lookupSelector: each)
hasLiteral: #subclassResponsibility ] ]
Cheers,
Lukas
--
Lukas Renggli
http://www.lukas-renggli.ch
16 years, 10 months
