Thank you Leonel but u.image_user16x16 contains always the file name, so
the test will return always True.
The problem is that the image file is not created on the disk so I have to
test if it exist.
At this point it's not so easy to do.
The application call for these computed images from the auth.user session
and tables that have the auth.signature.
This works:
os.path.exists(os.path.join(request.folder,'uploads',auth.user.
image_user16x16))
This works:
event = db.events(event_id)
os.path.exists(os.path.join(request.folder,'uploads',event.created_by.
image_user32x32))
This works:
event_comments = db(db.events_comments.commented_event == event_id).select(
orderby=db.events_comments.created_on)
os.path.exists(os.path.join(request.folder,'uploads',event_comment.
created_by.image_user32x32))
This don't works:
user_followers = db((db.followers.to_user == to_user_id) & (db.followers.status
== True)).select()
os.path.exists(os.path.join(request.folder,'uploads',user_follower.
created_by.image_user32x32))
Traceback is:
File "/home/tasko/webapps/w2p_2_14_16/web2py/gluon/restricted.py", line
227, in restricted
exec ccode in environment
File
"/home/tasko/webapps/w2p_2_14_16/web2py/applications/mtbconnection/controllers/f_ajax.py"
, line 1081, in <module>
File "/home/tasko/webapps/w2p_2_14_16/web2py/gluon/globals.py", line 417,
in <lambda>
self._caller = lambda f: f()
File "/home/tasko/webapps/w2p_2_14_16/web2py/gluon/tools.py", line 4241,
in f
return action(*a, **b)
File
"/home/tasko/webapps/w2p_2_14_16/web2py/applications/mtbconnection/controllers/f_ajax.py"
, line 143, in get_followers
if os.path.exists(os.path.join(request.folder,'uploads',user_follower.
created_by.image_user32x32)):
File "/usr/lib64/python2.7/posixpath.py", line 75, in join
if b.startswith('/'):
AttributeError: 'NoneType' object has no attribute 'startswith'
And also this don't works, same error:
events = db((period_query) &
(db.events.geometry.st_within(geoPolygon((west, south), (
east, south), (east, north), (west, north), (west, south))))).select(
limitby=(0, 50),
orderby=db.events.event_datetime)
os.path.exists(os.path.join(request.folder,'uploads',event.created_by.
image_user32x32))
Traceback is:
File "/home/tasko/webapps/w2p_2_14_16/web2py/gluon/restricted.py", line 227,
in restricted
exec ccode in environment
File
"/home/tasko/webapps/w2p_2_14_16/web2py/applications/mtbconnection/controllers/f_ajax.py"
, line 1081, in <module>
File "/home/tasko/webapps/w2p_2_14_16/web2py/gluon/globals.py", line 417, in
<lambda>
self._caller = lambda f: f()
File
"/home/tasko/webapps/w2p_2_14_16/web2py/applications/mtbconnection/controllers/f_ajax.py"
, line 352, in get_main_events
html = get_events_html(events)
File
"/home/tasko/webapps/w2p_2_14_16/web2py/applications/mtbconnection/controllers/f_ajax.py"
, line 169, in get_events_html
if os.path.exists(os.path.join(request.folder,'uploads',event.created_by.
image_user32x32)):
File "/usr/lib64/python2.7/posixpath.py", line 75, in join
if b.startswith('/'):
AttributeError: 'NoneType' object has no attribute 'startswith'
The two situations where it don't works are similar to events_comments
situation that works. What could be the difference?
If I replace "if os.path..." with the simple test if
"event.created_by.image_user32x32" I don't have this 'NoneType' error.
I 've found on the web this about the NoneType error:
> NoneType means that instead of an instance of whatever Class or Object you
> think you're working with, you've actually got None. That usually means
> that an assignment or function call up above failed or returned an
> unexpected result.
Ok, but I cannot understand where is this attribute that don't exist.
Someone can give me a hand?
Il giorno sabato 18 febbraio 2017 18:14:30 UTC+1, Leonel Câmara ha scritto:
>
> Gael that's one of the bugs i've referred fo computed fields they are not
> updated in session.
>
> Notice that you use
>
> *auth.user*.image_user16x16
>
> Well auth.user is nothing other than *session*.auth.user
>
> You are also using os.path.exists wrong as you're giving it an URL.
>
> For instance I'm sure this will work after register:
>
>
> # put this function in a model
> def get_img(user):
> u = db.auth_user[user.id]
> if u and u.image_user16x16:
> return URL('default', 'download', args=u.image_user16x16)
> else:
> return URL('static/images', 'favicon.png')
>
> # then in a view
> <img src="{{=get_img(auth.user)}}">
>
> Note that this solution is very inefficient because you are reloading the
> user from the database, just for this image, every single time. My point is
> that this will prove to you that this is a session not being updated
> problem.
>
>
>
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