You could maybe call the "action" rotate "after the object is created.
There is also a product called "Image Cropping Field" (?) that might
be worth taking a look at (=to see how pil is used here)
Not too much related, but take a look at Products.Imageeditor, a
great product
Espen Moe-Nilssen
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Author of Subskins III , build your own theme for Plone. Try it at:
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Den 11. aug. 2009 kl. 23.32 skrev Zdych Lukáš:
Hi Jan,
it seems that your issue is that you are trying to call PIL's
image object's method "Rotate" on Archetypes ImageField instance
which can't work for sure .. but you should have a look at your
current ATContentTypes package where these operations are already
implemented somewhere in the module: Products.ATContentTypes/
Products/ATContentTypes/lib/imagetransform.py
Btw: These operations would be accessable easily if you include
ATContentTypes.content.image.Image class as one of your's class
parent or you can use these transforms directly maybe .. but all
that depends on what is your goal.
Kind Regards
Lukas
On Aug 11, 2009, at 11:12 PM, Jan Pokorný wrote:
Hello,
I have a custum content type "SightFolder" with a field "img" of
"image" type. I would like to use some PIL transformations on the
image saved in the image field, so I have added a method into the
content type class. But all my attempts fail.
I import PIL as:
from PIL import Image
A field is defined as:
ImageField(
name='img',
widget=ImageField._properties['widget'](
label="Map",
),
searchable=0,
required=0,
storage=AnnotationStorage(),
),
A method in the class is defined as:
security.declarePublic('Rotate')
def Rotate(self, img):
out = img.rotate(45)
return out
And I try to call it from a template as:
<span tal:replace="structure python:context.Rotate(context.img).tag
()"></span>
But i generates the following error:
Module Products.PageTemplates.ZRPythonExpr, line 49, in __call__
- __traceback_info__: context.Rotate(context.img).tag()
Module PythonExpr, line 1, in <expression>
Module Products.Sightseeing.SightFolder, line 142, in Rotate
AttributeError: rotate
Do you have any idea what is wrong? Is there any better way how to
input an image from a field into a method?
Thanks a lot for any help in advance.
Jan
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