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[Philippe Marschall]

Hi

Magritte has its own (unfortunately named) mailingslist:
https://www.iam.unibe.ch/mailman/listinfo/smallwiki
Please post Magritte questions there with your setup information
(Seaside version, Magritte version, ...) and a descriptive subject.

Cheers
Philippe

2007/4/25, Sau Sheong Chang <cssheong at pacific.net.sg>:
>
> Hi
>
> I was playing around with the Magritte exercises and was going through the
> Magritte solutions. I was trying to use Magritte Reports and I hit some
> problems in Exercise 14 (adding a column to the report). I didn't exactly
> follow the exercises as I instantiated the report object on first call
> instead of doing it on initialization. This is my code:
>
> UserComponent>>report
>  ^ report
>  ifNil: [report := MAReport
>  rows: self class users
>  description: (User description
>  select: [:each | #(#userName #firstName #lastName ) includes: each accessor
> selector]).
>  report addColumn: (MACommandColumn new addCommandOn: self selector: #view:;
>  yourself)]
>
>
> However I get this error:
>
> MessageNotUnderstood: MACommandColumn>>decorationChainDo:
>
>     * MACommandColumn(Object)>>doesNotUnderstand:
> #decorationChainDo:
>
>           self a MACommandColumn
>           temps
>           aMessage decorationChainDo: [] in
> UserComponent(WAPresenter)>>withNextPresentersDo: {[:ea |
> ea withNextPresen...etc...
>           inst vars
>           report a MAReport
>           properties a Dictionary()
>           commands an OrderedCollection(MessageSend(#view:
> -> an UserComponent)->'View')
>
>     * [] in UserComponent(WAComponent)>>nextPresentersDo:
> {[:ea | ea decorationChainDo: aBlock]}
>
>           self an UserComponent
>           temps
>           aBlock [] in
> UserComponent(WAPresenter)>>withNextPresentersDo: {[:ea |
> ea withNextPresentersDo: aBlock]}
>           ea a MACommandColumn
>           inst vars
>           decoration a WAStateHolder(a WAAnswerHandler)
>           report a MAReport
>
>     * [] in UserComponent(WAComponent)>>childrenDo: {[:ea |
> ea ifNotNil: [aBlock value: ea]]}
>
>           self an UserComponent
>           temps
>           aBlock [] in
> UserComponent(WAComponent)>>nextPresentersDo: {[:ea | ea
> decorationChainDo: aBlock]}
>           ea a MACommandColumn
>           inst vars
>           decoration a WAStateHolder(a WAAnswerHandler)
>           report a MAReport
>
>     * OrderedCollection>>do:
>
>           self an OrderedCollection(a MACommandColumn)
>           temps
>           aBlock [] in
> UserComponent(WAComponent)>>childrenDo: {[:ea | ea
> ifNotNil: [aBlock value: ea]]}
>           index 3
>           inst vars
>           array an Array(nil nil a MACommandColumn nil nil nil nil nil nil
> nil)
>           firstIndex 3
>           lastIndex 3
>
>     * UserComponent(WAComponent)>>childrenDo:
>
>           self an UserComponent
>           temps
>           aBlock [] in
> UserComponent(WAComponent)>>nextPresentersDo: {[:ea | ea
> decorationChainDo: aBlock]}
>           ea a MACommandColumn
>           inst vars
>           decoration a WAStateHolder(a WAAnswerHandler)
>           report a MAReport
>
>
> Any help please? Thanks!
>
>
>
> Sau Sheong
>
> http://blog.saush.com - brain dump
>
>
>
>
>
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>