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MAOneToManyComponent>>value not getting set

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validation of referenced objects

Chad Nantais

28 Apr 2007 28 Apr '07

1:22 a.m.

When trying to add a new item inside an MAToManyRelationDescription container, I get the error found in the attached file. It says that the MAOneToManyComponent>>value is an undefined object. I reproduced this error in the MADescriptionEditor example as well as in my code. I'm using the latest Magritte-all package. Chad

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examplebrowser.html (text/html — 64.8 KB)

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Lukas Renggli

29 Apr 29 Apr

6:56 p.m.

When trying to add a new item inside an MAToManyRelationDescription container, I get the error found in the attached file. It says that the MAOneToManyComponent>>value is an undefined object. I reproduced this error in the MADescriptionEditor example as well as in my code. I'm using the latest Magritte-all package.

I cannot reproduce. Are you sure to have initialized the collection or set the default value to be #()? Cheers, Lukas -- Lukas Renggli http://www.lukas-renggli.ch

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Chad Nantais

9 May 9 May

7:27 a.m.

Hey Lukas, It's actually the MAOneToManyComponent>>value that is nil, and not the model. This error occurs during the answer back from the model editor to the collection report. It has something to do with the MAOneToManyComponent's memento having a nil value for #cache. Any help is appreciated, as always. Cheers, Chad On 4/29/07, Lukas Renggli <renggli(a)iam.unibe.ch> wrote:

When trying to add a new item inside an MAToManyRelationDescription container, I get the error found in the attached file. It says that the MAOneToManyComponent>>value is an undefined object. I reproduced this error in the MADescriptionEditor example as well as in my code. I'm using the latest Magritte-all package.

I cannot reproduce. Are you sure to have initialized the collection or set the default value to be #()? Cheers, Lukas -- Lukas Renggli http://www.lukas-renggli.ch _______________________________________________ SmallWiki, Magritte, Pier and Related Tools ... https://www.iam.unibe.ch/mailman/listinfo/smallwiki

-- Chad Nantais Buy my album Zero Ground on iTunes: http://tinyurl.com/2sojcn View my artist profile on MySpace Music: http://myspace.com/chadnantais Hear my music on-demand on Last.fm: http://www.last.fm/music/Chad+Nantais

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Lukas Renggli

10 May 10 May

3:45 p.m.

It's actually the MAOneToManyComponent>>value that is nil, and not the model. This error occurs during the answer back from the model editor to the collection report. It has something to do with the MAOneToManyComponent's memento having a nil value for #cache.

And in your object the value is actually a collection? Usually the cache just reads the value from your object. I am confused. How can I reproduce? Cheers, Lukas -- Lukas Renggli http://www.lukas-renggli.ch

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Chad Nantais

4:36 p.m.

Lukas, Sorry to be confusing. But here's more of an explanation. I have a class ImageFolderDescription, which is a subclass of MAToManyRelationDescription. This description is added to my PlantModel through a DescriptionEditor. So, when someone goes to the edit form for PlantModel, the form contains an MAOneToManyComponent for the Plant's ImageFolderDescription. When they click the add button to create a new image in the ImageFolder, it shows them the editor component for the image--no problem. But once they are done editing the image and click the Save button, they get the "UndefinedObject>>copyWith:" error. In fact it doesn't matter which class I add to the ImageFolder, whether its an image or and Object or a credit card, it still throws this error. Chad On 5/10/07, Lukas Renggli <renggli(a)iam.unibe.ch> wrote:

It's actually the MAOneToManyComponent>>value that is nil, and not the model. This error occurs during the answer back from the model editor to the collection report. It has something to do with the MAOneToManyComponent's memento having a nil value for #cache.

And in your object the value is actually a collection? Usually the cache just reads the value from your object. I am confused. How can I reproduce? Cheers, Lukas -- Lukas Renggli http://www.lukas-renggli.ch _______________________________________________ SmallWiki, Magritte, Pier and Related Tools ... https://www.iam.unibe.ch/mailman/listinfo/smallwiki

-- Chad Nantais Buy my album Zero Ground on iTunes: http://tinyurl.com/2sojcn View my artist profile on MySpace Music: http://myspace.com/chadnantais Hear my music on-demand on Last.fm: http://www.last.fm/music/Chad+Nantais

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Lukas Renggli

5:22 p.m.

I have a class ImageFolderDescription, which is a subclass of MAToManyRelationDescription. This description is added to my PlantModel through a DescriptionEditor.

It is a bit hard to see what happens. I attached a file that tries to implement what you like to have: PlantModel with a collection of files. The attached code works for me. Cheers, Lukas -- Lukas Renggli http://www.lukas-renggli.ch

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Chad Nantais

12 May 12 May

11:07 p.m.

Lukas, My Plant model is a subclass of MAAdaptiveModel and the #images description is an MAOneToManyDescription created through a description editor. Therefore, your solution above does not work for me. On 5/10/07, Lukas Renggli <renggli(a)iam.unibe.ch> wrote:

I have a class ImageFolderDescription, which is a subclass of MAToManyRelationDescription. This description is added to my PlantModel through a DescriptionEditor.

It is a bit hard to see what happens. I attached a file that tries to implement what you like to have: PlantModel with a collection of files. The attached code works for me. Cheers, Lukas -- Lukas Renggli http://www.lukas-renggli.ch _______________________________________________ SmallWiki, Magritte, Pier and Related Tools ... https://www.iam.unibe.ch/mailman/listinfo/smallwiki

-- Chad Nantais Buy my album Zero Ground on iTunes: http://tinyurl.com/2sojcn View my artist profile on MySpace Music: http://myspace.com/chadnantais Hear my music on-demand on Last.fm: http://www.last.fm/music/Chad+Nantais

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Chad Nantais
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