[Zope] Problem converting PIL-generated Image objects to Photo
1.2.3 objects
Jonathan Cyr
cyrj at cyr.info
Fri Jun 11 22:41:38 EDT 2004
Hello,
I am having a problem converting Image objects generated by PIL to
Photo objects (rbickers' Photo & Photo Folder 1.23) in Zope 2.7.0.
The error I get is:
Error Type: AttributeError
Error Value: 'str' object has no attribute 'read'
I am uploading an image into Zope, I am using an External Method & PIL
to standardize the dimensions & format of the image. The method is
extremely similar to the example the the Zope Book example of External
Methods & PIL Thumbnail script. At this point, I'd like to take these
homegenous image objects and convert them to Photo objects inside a
PhotoFolder and take advantage of the render-on-the-fly sizes. I'm
using RBickers' script image2photo python script, and I get the above
error.
Here's the code for the thumbnails, works fine, Images seem fine, work
fine, but wont convert to Photo...
> def makeThumbnail (self, original_id, original_title, size=150):
> """
> Makes a thumbnail image given an image ID when called on a Zope folder.
> Modified for WeddingWeblog from code in the Zope Book, Ch10
>
> The thumbnail is a Zope image object that is a small JPG representation
> of the original image
>
> """
>
> from PIL import Image
> from StringIO import StringIO
> import os.path
>
> #create a thumbnail image file
> original_image=getattr(self, original_id)
> original_file=StringIO(str(original_image.data))
> image=Image.open(original_file)
> image=image.convert('RGB')
> image.thumbnail((size,size))
> thumbnail_file=StringIO()
> image.save(thumbnail_file, "JPEG")
> thumbnail_file.seek(0)
>
> #create an ID for thumbnail
> path, ext=os.path.splitext(original_id)
> thumbnail_id=path + '_' +str(size)
>
> # if there's an existing thumbnail delete it.
> if thumbnail_id in self.objectIds():
> self.manage_delObjects([thumbnail_id])
>
> # create the Zope Image Object
> self.manage_addProduct['OFSP'].manage_addImage(thumbnail_id, thumbnail_file, title=original_title)
> thumbnail_image=getattr(self, thumbnail_id)
>
I'm using the Image2Photo script in the Photo/PhotoFolder support,
pythonscript:
> for image in context.objectValues(['Image']):
> context.manage_delObjects([image.getId(),], REQUEST=context.REQUEST)
> context.manage_addProduct['Photo'].manage_addPhoto(image.getId(), image.title, image.data, REQUEST=context.REQUEST)
I'm not well versed in the object types here...
any ideas?
-Jon Cyr
cyrj at cyr.info
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