Hello,
I am generating thumbnails with Bruno's slice :
http://www.web2pyslices.com/slice/show/1522/generate-a-thumbnail-that-fits-in-a-box
But I use "uploadseparate=True" so when I update image the derived
thumbnails are let behind in the precedent folder, but the original image
the one inputed by the user that serve for generating the thumbnails is
cleared out by Field method "delete_uploaded_files()" that is call on
update in a callback _before_update, I guess to allow the line 10045 of dal
: "oldname = record.get(fieldname, None)" get the precedent file name
before it get updated. I guess I need to do the same, because I don't see
other way to get the old file name other way...
Here model :
db.define_table('auth_user', ...
Field('image','upload', uploadseparate=True, label=T('Profile image'),
autodelete=True),
Field('address_book_image','upload',uploadseparate=True, compute=lambda
row: SMARTHUMB(row.image, (75,75), name='address_book_thumb'),
autodelete=True),
Field('profile_image','upload',uploadseparate=True, compute=lambda row:
SMARTHUMB(row.image, (160,160), name='profile_thumb'), autodelete=True))
So, what I thought is to do that :
# Controller
def delete_thumb():
row = db(db.auth_user.id == request.args(1)).select()
oldfoldername =
db.auth_user[fieldname].retrieve_file_properties(row['picture'])['path']
oldfilename =
db.auth_user[fieldname].retrieve_file_properties(row['picture'])['filename']
oldpath = pjoin(oldfoldername, oldfilename)
if exists(oldpath):
os.unlink(oldpath)
def controller_func():
db.auth_user._before_update.append(Set.delete_thumb())
db.auth_user._before_delete = [Set.delete_thumb()]
form = SQLFORM(db.auth_user, request.args(1), ...)
if form.process().accepted:
response.flash = T('Profile updated')
redirect(URL(c='directory',f='file',args=(auth.user_id)))
elif form.errors:
response.flash = T('There is error')
else:
response.flash = T('Fill or update the form')
NOT TESTED
Thanks for your help.
Richard
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