Hello everybody,
I just wanted to let you know that I have submitted a talk proposal
about web2py for PyCon 2009. Let's hope to have more luck than last
year (it was rejected).
Notice that anybody can register, submit proposals and review other
submitted proposals.
Massimo
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SQLite locks the database. Only one thread can safely access it.
On Oct 26, 10:50 pm, tommy <[EMAIL PROTECTED]> wrote:
> Archipa, when you use the different thread to access same SQLITE
> database, do you have any problem? It looks like SQLITE database can
> be only accessed by one thread. How d
Archipa, when you use the different thread to access same SQLITE
database, do you have any problem? It looks like SQLITE database can
be only accessed by one thread. How do you walk around it?
To all, thanks for your replies, I think my design has some issue.
Massimo's example code and Bill's sug
I have about 3-4 patches in the queue. I apologize if I did not get
back to you yet. It is simply because I am thinking about the
implications and I did not have enough time to look into them in
sufficient detail. I can promise a reply by Nov 15. Meanwhile I do not
mind if you send me reminders.
I am sorry. I have a work deadline in two weeks and there are a few
patches from Bill that are complex and I need the time to study them
in some detail. They are not lost. Anyway, feel free to send me
periodic reminders using my personal email.
Massimo
On Oct 26, 4:31 pm, achipa <[EMAIL PROTECTE
Bill, here's a Python/web2py resource list:
http://groups.google.com/group/web2py/browse_thread/thread/6e6896e718716264/eacfb19e929c50df?lnk=gst&q=python+book#eacfb19e929c50df
I hope that helps too!
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You received this message because you are
It's hard, if not impossible to do meaningful comparison of php and
python _framework_ speed since the simpler the app (and hello world is
as simple as it gets), the more the web server/interface tech will
influence the result. So, even with web2py on it's own, you will see
drastic differences dep
Actually, I made a patch that allows execution of code in a parallel
thread after the page has been served. It can be scheduled (e.g.
cron), or just launched in a fire and forget fashion without affecting
the main app and the user (e.g. session cleaning, a long(er)
conversion task, etc). It runs o
Assuming an event causes the data in the "other" application to change
wouldn't it be easier for the "other" application to post the changes
to your web2py app when the event occurs? Having said that, I can
envisage a case where there are hundreds or thousands of updates per
couple of minutes an
mmm... ok, I see.
Thank you.
On 26 Okt, 16:14, mdipierro <[EMAIL PROTECTED]> wrote:
> You cannot store a any SQLxx object in the session. For example a user
> object. The reason is that user has a method user.update_record which
> requires a db connection and it is not serializable.
>
> On Oct 26
Hi tommy,
I don't know if it's a good ideia to put this verification
(session.enginestarted=True) in a session var. Because the client can close
the browser, open the link again and start another thread...
I have here a small example where the client can start just one thread.
*In a model:*
db.d
Massimo,
Here is my code,
I use GUI button to start my service (StartEngine, in the background,
I want to retrieve the infomation from another application and save it
in my database for every couple of munites. after I starting my start
engine service, I can go to other screen. and the backgrou
This app does that. You upload a video and it is converted in
background (like at youtube) in a separate process (not a thread, a
process although the process my have threads). The visitor can later
check the conversion was completed. It includes documentation:
http://mdp.cti.depaul.edu/appliance
Hi Bill,
How about COMET ("reverse ajax") applications, like they use in chat
clients such as meebo.com ? I guess those need background tasks by
nature.
Deodoro Filho
Em 26/10/2008, às 16:55, billf escreveu:
>
> I started to write a post saying "ok - can't start a new thread - so
> how ca
On Sun, 26 Oct 2008 11:55:08 -0700 (PDT), [EMAIL PROTECTED]
said:
> 1) what other background tasks do people envisage?
A regular display update via Ajax (but that could probably be demanded by
the client rather than pushed)
> 2) how should you do it in web2py?
Pass.
--
Keith Edmunds
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I started to write a post saying "ok - can't start a new thread - so
how can I run a background task?" and then I really struggled to find
an example that couldn't be solved some other way.
The only example I came up with was a major processing task, maybe
some major calculation or db search/anal
Voltron
I didn't think you came on strong at all, it's just there's a lot I
don't know about :-)
This is the best (responsive/friendly/useful) forum I have come across
- but then I don't get out much :-)
On Oct 26, 4:14 pm, voltron <[EMAIL PROTECTED]> wrote:
> Hey Bilf, sorry if my suggestioin
Not sure I understand the question.
Let's say you create a "test" application with a simple "default.py"
controller:
def index(): return "hello world"
This is already a multithreaded application. Every time an http
request for "http://localhost:8000/test/default/index"; arrives, a new
threa
I tried to run some tasks every certain minutes in the background for
my WEB2PY application. I created another thread, but my web page
screen was stuck there for ever. Can someone tell me how to write
multthreaded GUI application in web2py?
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You
Hey Bilf, sorry if my suggestioin came on , erm , "strong" that was
not my intention. I really appreciate you taking the time to help me
solve this problem. I just wanted to make emphasis on that particular
point because I have mentioned problems with migration once, maybe
twice before on the foru
Thank you. That is not fix my problem but it fixes a bug anyway.
Massimo
On Oct 26, 6:51 am, notabene <[EMAIL PROTECTED]> wrote:
> On 24 Okt., 05:19, mdipierro <[EMAIL PROTECTED]> wrote:
>
>
>
> > Why does this not work on gae?
>
> > def urlopen(url):
> > try:
> > from go
On 24 Okt., 05:19, mdipierro <[EMAIL PROTECTED]> wrote:
> Why does this not work on gae?
>
> def urlopen(url):
> try:
> from google.appengine.api.urlfetch import fetch
> if url.find('?')>=0:
> url,payload=url.split('?')
> return f
You cannot store a any SQLxx object in the session. For example a user
object. The reason is that user has a method user.update_record which
requires a db connection and it is not serializable.
On Oct 26, 7:20 am, pedro <[EMAIL PROTECTED]> wrote:
> Hi there.
> I am getting an error whose trace
Voltron
I am not agreeing/disagreeing re migrate switch - you may well be
right - I don't know.
Re your procedure: my tests proved to me that running "upload
application" when the application already exists DOES NOTHING. The
models, controllers, etc are unchanged. Therefore to change the
applic
I still insist, unless convinced otherwise, that the migrate switch
at the moment logically wrong if it takes a string for the table
files, there should be a separate variable that controls the creation
of .table files because one would not want to migrate a
database( migrate = False) but just mo
Voltron
You weren't absolutely specific, so just to clarify, when you say
"upload" do you mean using the web2py admin "upload application"
function?
Let's assume for the time being that the answer is "yes" both on the
initial upload and the "weeks after" scenario.
As you say, on the initial upl
Hi there.
I am getting an error whose trace has no reference to any point of my
code...
Here's the trace:
Traceback (most recent call last):
File "/home/p/Desktop/web2py/gluon/main.py", line 210, in wsgibase
File "/home/p/Desktop/web2py/gluon/globals.py", line 203, in
_try_store_on_disk
Fi
Hi Billf
Thanks for taking time on this. The first upload of the appliance was
done by uploading a packed(tarred) application from my loacl
workstation to the BETA server, the beta server is the checked by the
project managers and QA. When they gave the go ahead, the site was
uploaded to its LIVE
Voltron
I apologise but I am a bit confused by your last reply. So going back
to basics a bit, in your original post you said:
"I made changes to the local version of the site on my workstation and
uploaded to my
"BETA" server."
How exactly did you do the upload? For example:
Did you use "pac
ok, it seems as if the steps are not clear to me then. I have .table
files on the live appliance and some on the local identical appliance,
why should I force the re-creation of .table files on the
altered .table files? They are okay, I just want the database on the
live server to be altered, wi
What is wrong with the second solution?
$ python web2py.py -S atest
>>> db=SQLDB(None)
>>> db['_dbname']='mysql'
>>>
db.define_table('person',SQLField('name'))._create(migrate='person.table')
Massimo
On Oct 26, 6:02 am, voltron <[EMAIL PROTECTED]> wrote:
> Thanks Bill and Mass
Hi Billf
it seems you might need to use some client side validation code to
make up for the missing usability problems. The Jquery validation
plugin might help
On 26 Okt., 10:53, mdipierro <[EMAIL PROTECTED]> wrote:
> You are right but the form is generated by Google so there is nothing
> I can
Thanks Bill and Massimo for your tests and suggestions. From what has
been posted:
Problem:
Updating and altering the database of a remote(live) appliance and its
tables form an identical local appliance
Solutions:
1. Upload and rename the local copy, delete the remote appliance,
rename the u
You are right but the form is generated by Google so there is nothing
I can do about it.
Massimo
On Oct 25, 2:39 am, billf <[EMAIL PROTECTED]> wrote:
> Massimo
>
> It all seems to work fine. My only comment is that the form doesn't
> indicate which fields are required fields and the error messa
Hi Voltron,
> Would it not be better to have a varibare that notifies web2py to
> generate the databse files or not and a separate one that toggles
> migration?
Let's consider the 4 cases Create/Migrate=TT, TF, FT, FF:
TT: corresponds to migrate=True or migrate='filename'
FF: corresponds to mi
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