A 'Multifile' field

Plone Support Add-on Development
1

Would it be possible to make a 'multi-file/images' field for dexterity.

... so one for example could upload one, or two or three images to a content type.

PS: I know that it is possible to 'use folders items with images', but this is not useful when you want to have two or more 'multi-file'-fields. (?)

2

I recall there is/was already one, but it was considered a bad idea, because need for maintain separate download views and everything in addition to the default file field attribute.

3

"dexterity" builds on zope.schema and there you have List and Tuple fields with a way to specify the component field. I have never used a List/Tuple of Images but a List with Object as component field and the result (with zope.formlib, not z3c.form) was acceptable: there is a button to add a further list element which can then be "filled" with data.

4

With Tuple, I am quite sure it does not work (see below) (I have tried to add objects and Image fields, basically the 'Image' is lost on save or Edit.

With List I have tried with DataGridField with more or less the same problem.

Also : It would be nice to have an UI similar to the 'Upload files'(Plone 5 or wildcard.foldercontents).

images = schema.Tuple(
         title = _(u"images", 
             default=u"Photos"),
        value_type= namedfile.NamedBlobImage(
        title=_(u"Photo"),
        description=u"",
        required=False,
    ))

(or value_type= DictRow(schema=IPhotoObject)

5

I probably found it:
plone.formwidget.multifile

This add on looks very promising

From my view templates, I get the 'Blobfiles', :
<plone.namedfile.file.NamedBlobImage object at 0x1099f3cf8>

I can also get the filename, (some image.jpg)... not sure if that is of any use, maybe a src-url can be constructed?

.... or it might be possible to use' _data' or '_getData and src="data:

... suggestions are appreciated