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Another command copying fix

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keith1y

Another command copying fix

I found this fix in my code which is another intended to preserve the
command-context integrity

Keith

---

PRCommand-context: aContext

context: aContext

(self isValidIn: aContext)
ifFalse: [ self error: self name , ' is not useable in the given
context.' ].

^ (aContext command: self new) command

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keith1y

Command cant edit model

I am trying, and failing, to create a command that acts upon a model.

When a command calls asComponent it usually gives itself as a model.

If I do:

asComponent
^ (model description asComponentOn: model)
addValidatedForm: (Array with: #save -> 'Confirm' with: #cancel);
yourself

Instead then everything works fine until the container component answers
the model, and the answer handler is expecting aCommand not an instance
of some other class

Any ideas would be appreciated.

Keith

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keith1y

Re: Command cant edit model

Ok solved it...

I can implement read:Using: etc. on the command to delegate all accesses
to the model.

Keith

> I am trying, and failing, to create a command that acts upon a model.
>
> When a command calls asComponent it usually gives itself as a model.
>
> If I do:
>
> asComponent
> ^ (model description asComponentOn: model)
> addValidatedForm: (Array with: #save -> 'Confirm' with: #cancel);
> yourself
>
> Instead then everything works fine until the container component answers
> the model, and the answer handler is expecting aCommand not an instance
> of some other class
>
> Any ideas would be appreciated.
>
> Keith
>

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Lukas Renggli-2

Re: Another command copying fix

In reply to this post by keith1y

Thank you for reporting this problem.

I removed this accessor from the command all-together. It is used
nowhere in the code and seems to be a legacy thing from earlier
versions of Pier.

Cheers,
Lukas

On 22 Oct 2007, at 17:37, Keith Hodges wrote:

> I found this fix in my code which is another intended to preserve the
> command-context integrity
>
> Keith
>
> ---
>
>
> PRCommand-context: aContext
>
> context: aContext
>
> (self isValidIn: aContext)
> ifFalse: [ self error: self name , ' is not useable in the
> given
> context.' ].
>
> ^ (aContext command: self new) command
>
>
>
>
>
>
> _______________________________________________
> SmallWiki, Magritte, Pier and Related Tools ...
> https://www.iam.unibe.ch/mailman/listinfo/smallwiki

--
Lukas Renggli
http://www.lukas-renggli.ch

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