I've found that in this function the upload folder was without a '/' at the
beginning.
On Webfaction it was working fine, on Opalstack no.
I think it's due more to the Web2py version than to the hosting.
On Webfaction I've PIL (not Pillow) Python 2.7.5 with Web2py 2.14.6. and it
works fine.
On Opalstack I've Pillow Python 2.7.5 with Web2py 2.20.4.
Anyway I've updated 'upload/' to '/upload/' and it works.
If it could be useful for someone else, as this SMARTHUMB function has been
shared here.
def SMARTHUMB(image, box, fit=False, name="thumb"):
#Downsample the image.
#@param img: Image - an Image-object
#@param box: tuple(x, y) - the bounding box of the result image
#@param fit: boolean - crop the image to fill the box
if image:
request = current.request
img = Image.open(request.folder +* 'uploads/'* + image)
#preresize image with factor 2, 4, 8 and fast algorithm
factor = 1
while img.size[0] / factor > 2 * box[0] and img.size[1] * 2 /
factor > 2 * box[1]:
factor *= 2
if factor > 1:
img.thumbnail((img.size[0] / factor, img.size[1] / factor),
Image.NEAREST)
#calculate the cropping box and get the cropped part
if fit:
x1 = y1 = 0
x2, y2 = img.size
wRatio = 1.0 * x2 / box[0]
hRatio = 1.0 * y2 / box[1]
if hRatio > wRatio:
y1 = int(y2 / 2 - box[1] * wRatio / 2)
y2 = int(y2 / 2 + box[1] * wRatio / 2)
else:
x1 = int(x2 / 2 - box[0] * hRatio / 2)
x2 = int(x2 / 2 + box[0] * hRatio / 2)
img = img.crop((x1, y1, x2, y2))
#Resize the image with best quality algorithm ANTI-ALIAS
img.thumbnail(box, Image.ANTIALIAS)
root, ext = os.path.splitext(image)
thumb = '%s_%s%s' % (root, name, ext)
img.save(request.folder + *'uploads/'* + thumb)
return thumb
Il giorno domenica 1 novembre 2020 alle 20:18:49 UTC+1 Gaël Princivalle ha
scritto:
>
> Hello.
>
> I've migrated 3 Web2py apps from Webfaction to Opalstack.
> For all these 3 apps I've the same ticket.
>
> When I save a table record with an upload field Web2py tried to save in
> the myappupload folder instead of the myapp/upload folder.
>
> Of course Web2py is unable to find this folder.
>
> Someone knows why?
> Could it be because Web2py 2.20.4 is not compatible with Python 2.7.5, so
> I must update Python to 2.7.16 or the last one 2.7.18?
> Or perhaps it's a PIL problem?
> from PIL import Image
>
> userweb2py™ Version 2.20.4-stable+timestamp.2020.05.03.05.18.50
> Python Python 2.7.5: /home/user/apps/web2py_folder/env/bin/uwsgi
> (prefix: /home/user/apps/web2py_folder/env)
> Traceback
>
> Traceback (most recent call last):
> File "/home/user/apps/web2py_folder/web2py/gluon/restricted.py", line
> 219, in restricted
> exec(ccode, environment)
> File
> "/home/user/apps/web2py_folder/web2py/applications/my_app/controllers/appadmin.py",
>
> line 635, in <module>
> File "/home/user/apps/web2py_folder/web2py/gluon/globals.py", line 430,
> in <lambda>
> self._caller = lambda f: f()
> File
> "/home/user/apps/web2py_folder/web2py/applications/my_app/controllers/appadmin.py",
>
> line 325, in update
> if form.accepts(request.vars, session):
> File "/home/user/apps/web2py_folder/web2py/gluon/sqlhtml.py", line 1992,
> in accepts
> self.id_field_name]).update(**fields)
> File
> "/home/user/apps/web2py_folder/web2py/gluon/packages/dal/pydal/objects.py",
> line 2681, in update
> row = table._fields_and_values_for_update(update_fields)
> File
> "/home/user/apps/web2py_folder/web2py/gluon/packages/dal/pydal/objects.py",
> line 878, in _fields_and_values_for_update
> return self._compute_fields_for_operation(new_fields, to_compute)
> File
> "/home/user/apps/web2py_folder/web2py/gluon/packages/dal/pydal/objects.py",
> line 849, in _compute_fields_for_operation
> row.set_value(name, field.compute(row), field)
> File
> "/home/user/apps/web2py_folder/web2py/applications/my_app/models/db.py",
> line 497, in <lambda>
> db.news.image_file_oleodinamica_thumb.compute = lambda row:
> SMARTHUMB(row.image_file_oleodinamica, box)
> File
> "/home/user/apps/web2py_folder/web2py/applications/my_app/models/db.py",
> line 140, in SMARTHUMB
> img = Image.open(request.folder + 'uploads/' + image)
> File
> "/home/user/apps/web2py_folder/env/lib/python2.7/site-packages/PIL/Image.py",
> line 2766, in open
> fp = builtins.open(filename, "rb")
> IOError: [Errno 2] No such file or directory:
> '/home/gael/apps/web2py_folder/web2py/applications/my_appuploads/news.image_file_oleodinamica.844c80079e794fbd.62726f777361626c655f636174616c6f6775652e6a7067.jpg'
>
--
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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