Re: "Object is of wrong type" with NamedBlogImage field

Am 16.09.2014 um 11:24 schrieb Andreas Jung:
> Plone 4.3, Dexterity 2.
> 
> I have an image field
> 
>     image = NamedBlobImage(
>        title=_(u'label_special_image'),
>        description=_(u'help_special_image'),
>        required=False,
>     )
> 
> which is updated during a migration using
> 
>                 if new_obj.portal_type == 'Image':
>                     setattr(new_obj, k, namedfile.NamedBlobImage(v,
> filename=filename))
> 
> 
> The image is stored correctly and shown correctly in our own custom
> view. When we @@edit the content-type instance and save then we
> receive an error "Object is of wrong type" (see screenshot).
> The preview of the image is also being displayed correctly.
> 
> Why is this happening?

This usually happens when the attribute object type is not stored
correctly. Everything works, just the form validators complain.

Here is how I usually set a NamedBlobImage in a test:

    self.portal.mi.eb.invokeFactory('grafik', 'text1')
    image_file = os.path.join(os.path.dirname(__file__), u'logo.jpg')
    self.portal.mi.eb.text1.grafik = NamedBlobImage(
        data=open(image_file, 'r').read(),
        contentType='image/jpg',
        filename=u'logo.jpg'
    )

Hope that helps...
Timo

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