[web2py] Function in view in model less app
Hi there, I'm building a webapp with the model less app approach by Bruno Rocha and I stumble upon a problem. Usually when you use models you can define function which can later be used inside a view. How would I do this with a model less approach? -- 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) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[web2py] how to get just one instance of a complex class ?
hello, I've a class, that reads a huge file and parses it. Therefor I want just one instance per session or even one over all sessions. # The next code (placed in controler default.py) generates an error if session.Book_Loaded is None : session.Book_Loaded = PuntHoofd_support.PuntHoofd_Doc ( Text ) session.Test_One_Instance = random.randint ( 0, 1000 ) Book_Source = session.Book_Loaded Test_One_Instance = session.Test_One_Instance #Chapters = Test_One_Instance.Get_Chapters ( Book ) #AttributeError: 'str' object has no attribute 'Get_Chapters' Error: session.Book_Loaded has become a string Now I've found a workaround that does work: try : sys.Book_Loaded except : sys.Book_Loaded = PuntHoofd_support.PuntHoofd_Doc ( Text ) sys.Test_One_Instance = random.randint ( 0, 1000 ) Book_Source = sys.Book_Loaded Test_One_Instance = sys.Test_One_Instance Is there a better/cleaner way to realize this ? thanks, Stef -- 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) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[web2py] Re: Function in view in model less app
you're the one choosing an app without models :P there's nothing on modules that is available globally on views if not a model. That being said, the model-less approach was done in a time where the thing that hurted performances was table definitions, that later got the possibility to be lazy-defined (hence the relatively small adoption of the model-less approach). You can still have a model that defines functions that you need globally, and it's the perfect place for them to be. On Sunday, November 30, 2014 12:42:21 PM UTC+1, Ruud Schroen wrote: Hi there, I'm building a webapp with the model less app approach by Bruno Rocha and I stumble upon a problem. Usually when you use models you can define function which can later be used inside a view. How would I do this with a model less approach? -- 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) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[web2py] Re: are expired session files deleted automatically?
folders do not create a performance issue on ntfs. if you want to keep it clean for aestethical reasons, do it with another step in your batch... On Sunday, November 30, 2014 8:23:50 AM UTC+1, Dmitry Ermolaev wrote: but folders not deleted (( I make .bat file for WIN === set sleep=7200 set /a sleep3=%sleep%/3 :rep c:\python27\python ..\..\web2py.py -S ipay -M -R scripts/sessions2trash.py -A -o -x %sleep% -f -v timeout /t %sleep3% goto rep == вторник, 25 ноября 2014 г., 15:37:36 UTC+3 пользователь Anthony написал: http://web2py.com/books/default/chapter/29/13/deployment-recipes#Cleaning-up-sessions On Tuesday, November 25, 2014 6:10:17 AM UTC-5, Robin Manoli wrote: Hi! I noticed that when I'm working alone on a project, the session folder creates quite a lot of sessions. I wonder if web2py deletes expired automatically? Or is there a way to delete them? It wouldn't be so nice to have expired sessions of thousands of users when the site is in production mode, would it? Thanks for your time, - Robin -- 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) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[web2py] Re: jQuery - Examples from book not working.
something extremely wrong is going on with your javascript. the ready
call is pretty much the default way of handling events once the document
has been loaded.
On Sunday, November 30, 2014 7:16:04 AM UTC+1, Jeremiah Peterson wrote:
Here's the example from the book, which isn't working for me.
div class=one id=aHello/div
div class=two id=bWorld/div
script
jQuery(document).ready(function(){
jQuery('.one').click(function(){jQuery('.two').slideToggle()});
});
/script
This code does work, just removing the ready.
div class=one id=aHello/div
div class=two id=bWorld/div
script
jQuery('.one').click(function(){jQuery('.two').slideToggle()});
/script
Any ideas?
--
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- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
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Re: [web2py] Re: Function in view in model less app
Hmm i didnt't know about that, i really need to check out lazy_tables. Saves me alot of time :P thanks for the info Op 30-nov.-2014 13:38 schreef Niphlod niph...@gmail.com: you're the one choosing an app without models :P there's nothing on modules that is available globally on views if not a model. That being said, the model-less approach was done in a time where the thing that hurted performances was table definitions, that later got the possibility to be lazy-defined (hence the relatively small adoption of the model-less approach). You can still have a model that defines functions that you need globally, and it's the perfect place for them to be. On Sunday, November 30, 2014 12:42:21 PM UTC+1, Ruud Schroen wrote: Hi there, I'm building a webapp with the model less app approach by Bruno Rocha and I stumble upon a problem. Usually when you use models you can define function which can later be used inside a view. How would I do this with a model less approach? -- 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) --- You received this message because you are subscribed to a topic in the Google Groups web2py-users group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/web2py/1mibYB-hRrE/unsubscribe. To unsubscribe from this group and all its topics, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[web2py] Re: add task and wait the result
when nothing is going wrong, and with default values, you can expect to queue a task and have it assigned in 15 seconds. if that's not the case, something is going wrong (other tasks are being processed, workers not ready, db contention, etc etc etc) On Friday, November 28, 2014 8:02:15 PM UTC+1, nick name wrote: Related, but not exactly the same question: I'm submitting an immediate task in a regular (no sleep or anything -- though no special commit either); I can see it's queued for seconds and sometimes minutes before getting assigned and running. There are no other tasks waiting or running, there are one or two schedulers running (one starts with app server, one independently - but I tried only one with same results). Before I dig deep into debugging the scehduler - is there something simple I might be missing? Other things: main app db, auth db and sched db are all different, and all are SQLite files. Running on Linux. Tasks are given a uuid by me (easiest way to track if something was done in a previous run or not - uuid reflects the exact operation needed). Thanks in advance. On Friday, November 28, 2014 7:30:44 PM UTC+2, Niphlod wrote: def test(): newid = sched.queue_task(, immediate=True) db.commit() #the db instance where the scheduler is while True: rtn = sched.task_status(newid) if rtn.status == 'COMPLETED': ...blablabla break time.sleep(3) not tested (haven't a web2py to try it on ATM) but you get the idea On Friday, November 28, 2014 7:30:18 AM UTC+1, Manuele wrote: Hi, I would like to add an immediate task to the scheduler and wait for the result within the same submit. Is it possible? How? Thank you very mutch Manuele -- 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) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[web2py] Re: web2py with bootstrap-slider bootstrap-typeahead
use some javascript 101 course before digging into javascript. One issue
with your code is that you're not waiting the document to be ready before
calling the javascript bit. Use $(document).ready(function() {}) to wrap
any javascript in the page.
On Friday, November 28, 2014 8:49:35 PM UTC+1, fsp wrote:
Hy everyone.
I'm working with web2py since one year. In most cases it's a fine and easy
way to develop a nice working web app.
Now i want to create a new web application in web 2.0 design.
For this i want to use more bootstrap components
i need to use the bootstrap slider
http://seiyria.github.io/bootstrap-slider/
and the autocomplete extension
https://twitter.github.io/typeahead.js/examples/
i've downloaded the java scripts and css files and placed them to the js
and css directory.
After this, i added
link href={{=URL('static', 'css/bootstrap-slider.css')}} rel=
stylesheet type=text/css /
script src={{=URL('static','js/bootstrap-slider.js')}}/script
in my view html file.
i also added a sample in my view file..
input id=ex1 data-slider-id='ex1Slider' type=text data-slider-min=0
data-slider-max=20 data-slider-step=1 data-slider-value=14/
script
$('#ex1').slider({
formatter: function(value) {
return 'Current value: ' + value;
}
});
/script
style
#ex1Slider .slider-selection {
background: #BABABA;
}
/style
But it does not work.
Just a empty input filed is displayed..
I added a alter in the slider.js file. This works - alter call is
displayed.
Can anybody help me??
Regards
Florian
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Re: [web2py] Re: Web2py's included connection pooling VS external pooling software
did you restart the webserver ? I don't think that changing pool_size at runtime when connections are still open will make the number of active connection dropped. On Friday, November 28, 2014 8:48:07 PM UTC+1, Lisandro wrote: Mmm... I see. That was my understanding in the first place. At that time I did the maths, I had 10 apps, each one using a pool_size of 3. In postgresql.conf max_connections was set to 80. However this morning, with those numbers, almost every of my websites was throwing intermitent HTTP 500 errors, and the error tickets were all the same: FATAL: remaining connection slots are reserved for non-replication superuser connections. Right now, I have almost 13 websites, all of them with pool_size in 3, and max_connections in 80. However, if I check the table pg_stat_activity I can see 65 connections, and I can see there is 5 connections per app. I've tried even setting pool_size to 1 for one of the apps, restarted database server and webserver, but again I check pg_stat_activity and I see 5 connections for that app. ¿Am I missing something too ovbious? 2014-11-28 14:25 GMT-03:00 Niphlod nip...@gmail.com javascript:: On Friday, November 28, 2014 3:31:02 PM UTC+1, Lisandro wrote: I go back to this thread because today I ran with the same problem: postgresql reaching max_connection limits and, therefor, some of my websites throwing intermitent HTTP 500 errors (because web2py couldn't connect to the database). To remind, we are talking of a VPS with multiple instances of web2py running, all of them serving the same web2py app, each one connecting to a different postgresql database (however the database structure is the same accross all the databases). Each web2py instance is served by a lighttpd virtual host through fastcgi. Each virtual host (that is, each web2py instance) receives a different volume of traffic (that is obvious, they are different websites with different public). The original problem (the one that caused I post this question in the first place) was that the postgresql database server was reaching the max_connections limit and, in consecuence, some of the websites were throwing intermitent HTTP 500 errors (web2py couldn't connect to database). Then, the user oriented me with pool_size parameter of DAL constructor. Thanks again! I've been reading the web2py documentation about pooling [1] and I notice that it says that When the next http request arrives, web2py tries to recycle a connection from the pool and use that for the new transaction. If there are no available connections in the pool, a new connection is established. So, if I didn't get it wrong, I deduce that with web2py's pooling mechanism I can't overcome the max_connections postgresql limit. That is because, no matter the size of the pool, if the pool is full and the website is receiving a lot of requests, new connetions will be created, and eventually the database server will reach the max_conectios limit. no, you got it wrong again. pool_size=5 will create AT MOST 5 connections . if a 6th is needed, users will wait for a connection to be freed. if your postgresql accept at most 50 connections, do the math. Every db = DAL(, pool_size=5) lying around will create AT MOST 5 connections, and that means you can host 10 apps. If you need 50 apps, set pool_size=1 and let users wait, or set max_connections in postgres to a higher value. -- 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) --- You received this message because you are subscribed to a topic in the Google Groups web2py-users group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/web2py/5RTO_RqCsus/unsubscribe. To unsubscribe from this group and all its topics, send an email to web2py+un...@googlegroups.com javascript:. For more options, visit https://groups.google.com/d/optout. -- 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) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[web2py] Re: add task and wait the result
Is that true even with immediate=True? If so, what is the recommended way to reduce this to 0.5 seconds or so? I have an app in which a user requests somethng; that request launches 1-10 other web requests, and the user keeps refreshing until they all complete for the summarized result. (I will probably replace this with an ajax poll or a ws notification instead later on). Any time before the first assignment is essentially dead time that I would like to avoid. What's the best way to do so? I understand the scheduler might not have been designed for this setting (although otherwise it is perfect) - if I want to hack it, to e.g. checkl some shared flag (e.g. create a file) that will be signaled on queue_task) to try to assign things, would that work? would that be accepted upstream? Or should I just implement my own queue/scheduler for this? I cannot reproduce the several minute wait right now - I'm now getting the expected 10-15 seconds (Possibly there was a database contention or something like that that caused database access to stall - but the logging looked like things were running). But what could go wrong that would cause minutes of delay? On Sunday, November 30, 2014 2:43:15 PM UTC+2, Niphlod wrote: when nothing is going wrong, and with default values, you can expect to queue a task and have it assigned in 15 seconds. if that's not the case, something is going wrong (other tasks are being processed, workers not ready, db contention, etc etc etc) On Friday, November 28, 2014 8:02:15 PM UTC+1, nick name wrote: Related, but not exactly the same question: I'm submitting an immediate task in a regular (no sleep or anything -- though no special commit either); I can see it's queued for seconds and sometimes minutes before getting assigned and running. There are no other tasks waiting or running, there are one or two schedulers running (one starts with app server, one independently - but I tried only one with same results). Before I dig deep into debugging the scehduler - is there something simple I might be missing? Other things: main app db, auth db and sched db are all different, and all are SQLite files. Running on Linux. Tasks are given a uuid by me (easiest way to track if something was done in a previous run or not - uuid reflects the exact operation needed). Thanks in advance. On Friday, November 28, 2014 7:30:44 PM UTC+2, Niphlod wrote: def test(): newid = sched.queue_task(, immediate=True) db.commit() #the db instance where the scheduler is while True: rtn = sched.task_status(newid) if rtn.status == 'COMPLETED': ...blablabla break time.sleep(3) not tested (haven't a web2py to try it on ATM) but you get the idea On Friday, November 28, 2014 7:30:18 AM UTC+1, Manuele wrote: Hi, I would like to add an immediate task to the scheduler and wait for the result within the same submit. Is it possible? How? Thank you very mutch Manuele -- 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) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[web2py] Function in view in model less app
Of course, if you define a function in a module, you will need to explicitly import it. You can import it in a model file if you like. Anthony -- 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) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[web2py] Re: jQuery - Examples from book not working.
I did load the example in a new dummy app and it works like it should. Any
idea what would have changed, or what I could look at in my real app? Could
this template I used have messed something up? Thanks for looking.
On Sunday, November 30, 2014 6:40:52 AM UTC-6, Niphlod wrote:
something extremely wrong is going on with your javascript. the ready
call is pretty much the default way of handling events once the document
has been loaded.
On Sunday, November 30, 2014 7:16:04 AM UTC+1, Jeremiah Peterson wrote:
Here's the example from the book, which isn't working for me.
div class=one id=aHello/div
div class=two id=bWorld/div
script
jQuery(document).ready(function(){
jQuery('.one').click(function(){jQuery('.two').slideToggle()});
});
/script
This code does work, just removing the ready.
div class=one id=aHello/div
div class=two id=bWorld/div
script
jQuery('.one').click(function(){jQuery('.two').slideToggle()});
/script
Any ideas?
--
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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Re: [web2py] Re: Web2py's included connection pooling VS external pooling software
Yes in deed. I've restarted the webserver and the database server. Recently I've tried setting pool_size to 1 for every app, that is, for every website. Restarted postgresql and webserver (lighttpd). And then I used this SQL statement to check the total count of connections for every database (or what it is the same, for every app, because every app has its own database): select datname, count(*) from pg_stat_activity group by datname order by datname; Just to remind, I have around 13 apps running, that is, 13 websites, 13 databases. With this new configuration of every app using a pool size of 1, I restarted the database server and the webserver, and then I ran the previous SQL statement to see the total connections for every app, and I see 5 idle connections for every app, that is, for every website that has some visitors browsing the site. A couple of the websites almost never have visitors, so, for those websites, there were no idle connections. Then I go to the homepage of those websites, rechecked connections, and there I see 5 idle connections for those websites. I already checked and re-checked the code of my app to be shure that I'm setting pool_size parameter correctly. In the other hand, I've been testing pgbouncer on localhost, reading about it, and I'll be setting it for production. For what I've read, independently of the postgresql max connections, I can set pgbouncer to a max_client_conn of 2000 (for example) with a default_pool_size of 20. Then all the apps connect to pgbouncer, and pgbouncer will multiplex connections to postgres. However I don't want to mix things in this post, regardless of pgbouncer, I would like to understand why I can't get to work web2py's pooling mechanism. I'm really grateful for your help! I'll continue trying to figure it out. Any comment or suggestion will be appreciated. Thanks! 2014-11-30 9:48 GMT-03:00 Niphlod niph...@gmail.com: did you restart the webserver ? I don't think that changing pool_size at runtime when connections are still open will make the number of active connection dropped. On Friday, November 28, 2014 8:48:07 PM UTC+1, Lisandro wrote: Mmm... I see. That was my understanding in the first place. At that time I did the maths, I had 10 apps, each one using a pool_size of 3. In postgresql.conf max_connections was set to 80. However this morning, with those numbers, almost every of my websites was throwing intermitent HTTP 500 errors, and the error tickets were all the same: FATAL: remaining connection slots are reserved for non-replication superuser connections. Right now, I have almost 13 websites, all of them with pool_size in 3, and max_connections in 80. However, if I check the table pg_stat_activity I can see 65 connections, and I can see there is 5 connections per app. I've tried even setting pool_size to 1 for one of the apps, restarted database server and webserver, but again I check pg_stat_activity and I see 5 connections for that app. ¿Am I missing something too ovbious? 2014-11-28 14:25 GMT-03:00 Niphlod nip...@gmail.com: On Friday, November 28, 2014 3:31:02 PM UTC+1, Lisandro wrote: I go back to this thread because today I ran with the same problem: postgresql reaching max_connection limits and, therefor, some of my websites throwing intermitent HTTP 500 errors (because web2py couldn't connect to the database). To remind, we are talking of a VPS with multiple instances of web2py running, all of them serving the same web2py app, each one connecting to a different postgresql database (however the database structure is the same accross all the databases). Each web2py instance is served by a lighttpd virtual host through fastcgi. Each virtual host (that is, each web2py instance) receives a different volume of traffic (that is obvious, they are different websites with different public). The original problem (the one that caused I post this question in the first place) was that the postgresql database server was reaching the max_connections limit and, in consecuence, some of the websites were throwing intermitent HTTP 500 errors (web2py couldn't connect to database). Then, the user oriented me with pool_size parameter of DAL constructor. Thanks again! I've been reading the web2py documentation about pooling [1] and I notice that it says that When the next http request arrives, web2py tries to recycle a connection from the pool and use that for the new transaction. If there are no available connections in the pool, a new connection is established. So, if I didn't get it wrong, I deduce that with web2py's pooling mechanism I can't overcome the max_connections postgresql limit. That is because, no matter the size of the pool, if the pool is full and the website is receiving a lot of requests, new connetions will be created, and eventually the database server will reach the max_conectios limit. no, you got it wrong again.
[web2py] Re: how to get just one instance of a complex class ?
I think your options are: - Make the object pickleable https://docs.python.org/2/library/pickle.html#pickling-and-unpickling-extension-types and store it in the session (this is only necessary if you really need a separate object for each user's session). - Store the object in cache.ram (you can use a key for each user if you need multiple objects, but remember to clear old keys periodically or RAM will fill up). - Create a singleton or, if necessary, a multiton (keyed registry of singletons -- e.g., http://stackoverflow.com/a/7493603/440323). Anthony On Sunday, November 30, 2014 7:00:48 AM UTC-5, aapaap wrote: hello, I've a class, that reads a huge file and parses it. Therefor I want just one instance per session or even one over all sessions. # The next code (placed in controler default.py) generates an error if session.Book_Loaded is None : session.Book_Loaded = PuntHoofd_support.PuntHoofd_Doc ( Text ) session.Test_One_Instance = random.randint ( 0, 1000 ) Book_Source = session.Book_Loaded Test_One_Instance = session.Test_One_Instance #Chapters = Test_One_Instance.Get_Chapters ( Book ) #AttributeError: 'str' object has no attribute 'Get_Chapters' Error: session.Book_Loaded has become a string Now I've found a workaround that does work: try : sys.Book_Loaded except : sys.Book_Loaded = PuntHoofd_support.PuntHoofd_Doc ( Text ) sys.Test_One_Instance = random.randint ( 0, 1000 ) Book_Source = sys.Book_Loaded Test_One_Instance = sys.Test_One_Instance Is there a better/cleaner way to realize this ? thanks, Stef -- 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) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[web2py] Re: jQuery - Examples from book not working.
Do you accidentally load jQuery twice?
On Sunday, November 30, 2014 9:28:38 AM UTC-5, Jeremiah Peterson wrote:
I did load the example in a new dummy app and it works like it should. Any
idea what would have changed, or what I could look at in my real app? Could
this template I used have messed something up? Thanks for looking.
On Sunday, November 30, 2014 6:40:52 AM UTC-6, Niphlod wrote:
something extremely wrong is going on with your javascript. the ready
call is pretty much the default way of handling events once the document
has been loaded.
On Sunday, November 30, 2014 7:16:04 AM UTC+1, Jeremiah Peterson wrote:
Here's the example from the book, which isn't working for me.
div class=one id=aHello/div
div class=two id=bWorld/div
script
jQuery(document).ready(function(){
jQuery('.one').click(function(){jQuery('.two').slideToggle()});
});
/script
This code does work, just removing the ready.
div class=one id=aHello/div
div class=two id=bWorld/div
script
jQuery('.one').click(function(){jQuery('.two').slideToggle()});
/script
Any ideas?
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[web2py] Re: jQuery - Examples from book not working.
I don't believe so. In my app that I'm working on where the .ready isn't
working, I've created a completely new controller and view with nothing in
it except for the example code and the example doesn't work there either on
that.
On Sunday, November 30, 2014 9:28:30 AM UTC-6, Anthony wrote:
Do you accidentally load jQuery twice?
On Sunday, November 30, 2014 9:28:38 AM UTC-5, Jeremiah Peterson wrote:
I did load the example in a new dummy app and it works like it should.
Any idea what would have changed, or what I could look at in my real app?
Could this template I used have messed something up? Thanks for looking.
On Sunday, November 30, 2014 6:40:52 AM UTC-6, Niphlod wrote:
something extremely wrong is going on with your javascript. the ready
call is pretty much the default way of handling events once the document
has been loaded.
On Sunday, November 30, 2014 7:16:04 AM UTC+1, Jeremiah Peterson wrote:
Here's the example from the book, which isn't working for me.
div class=one id=aHello/div
div class=two id=bWorld/div
script
jQuery(document).ready(function(){
jQuery('.one').click(function(){jQuery('.two').slideToggle()});
});
/script
This code does work, just removing the ready.
div class=one id=aHello/div
div class=two id=bWorld/div
script
jQuery('.one').click(function(){jQuery('.two').slideToggle()});
/script
Any ideas?
--
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- 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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[web2py] Re: jQuery - Examples from book not working.
It seems to be this layout that's causing the
issue.
http://www.web2py.com/layouts/static/plugin_layouts/layouts/Emporium/index.html
1. I created a new app and just used the generic jquery example code and it
works great.
2. I upload that layout and then directly after it no longer works. I get
the same behavior as I am on my app.
Is it possible that this template is calling the .ready() somewhere
already, so when I call it it's called twice and not working? Is there a
way to check this?
If it's true that the template is already calling the .ready() then I can I
skip that in my views and assume that those jquery actions won't try to run
until the document is ready?
Thanks again for looking.
Jeremiah
On Sunday, November 30, 2014 9:42:59 AM UTC-6, Jeremiah Peterson wrote:
I don't believe so. In my app that I'm working on where the .ready isn't
working, I've created a completely new controller and view with nothing in
it except for the example code and the example doesn't work there either on
that.
On Sunday, November 30, 2014 9:28:30 AM UTC-6, Anthony wrote:
Do you accidentally load jQuery twice?
On Sunday, November 30, 2014 9:28:38 AM UTC-5, Jeremiah Peterson wrote:
I did load the example in a new dummy app and it works like it should.
Any idea what would have changed, or what I could look at in my real app?
Could this template I used have messed something up? Thanks for looking.
On Sunday, November 30, 2014 6:40:52 AM UTC-6, Niphlod wrote:
something extremely wrong is going on with your javascript. the ready
call is pretty much the default way of handling events once the document
has been loaded.
On Sunday, November 30, 2014 7:16:04 AM UTC+1, Jeremiah Peterson wrote:
Here's the example from the book, which isn't working for me.
div class=one id=aHello/div
div class=two id=bWorld/div
script
jQuery(document).ready(function(){
jQuery('.one').click(function(){jQuery('.two').slideToggle()});
});
/script
This code does work, just removing the ready.
div class=one id=aHello/div
div class=two id=bWorld/div
script
jQuery('.one').click(function(){jQuery('.two').slideToggle()});
/script
Any ideas?
--
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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[web2py] Re: jQuery - Examples from book not working.
@Anthony, Thanks for the tip. I found this in the layout.html. Since I'm
not using any drop down menus I've just removed it and everything seems to
be working as expected now.
script
jQuery(document).ready(function(){jQuery('ul.web2py-menu').superfish({delay:400});});
/script
I think it would be helpful for other newbies such as myself if there was
some sort of warning about this. I wouldn't assume that if I used a layout
that was linked directly off of the web2py site that it would make the code
examples no longer work.
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Re: [web2py] Re: Web2py's included connection pooling VS external pooling software
pool_size==number of threads in a web2py process. I suggest to work around the problem by setting the number of threads to 1 in you flup server. I.e. no threading. You should also see smoother performance across applications on higher loads. 2014-11-30 15:51 GMT+01:00 Lisandro Rostagno rostagnolisan...@gmail.com: Yes in deed. I've restarted the webserver and the database server. Recently I've tried setting pool_size to 1 for every app, that is, for every website. Restarted postgresql and webserver (lighttpd). And then I used this SQL statement to check the total count of connections for every database (or what it is the same, for every app, because every app has its own database): select datname, count(*) from pg_stat_activity group by datname order by datname; Just to remind, I have around 13 apps running, that is, 13 websites, 13 databases. With this new configuration of every app using a pool size of 1, I restarted the database server and the webserver, and then I ran the previous SQL statement to see the total connections for every app, and I see 5 idle connections for every app, that is, for every website that has some visitors browsing the site. A couple of the websites almost never have visitors, so, for those websites, there were no idle connections. Then I go to the homepage of those websites, rechecked connections, and there I see 5 idle connections for those websites. I already checked and re-checked the code of my app to be shure that I'm setting pool_size parameter correctly. In the other hand, I've been testing pgbouncer on localhost, reading about it, and I'll be setting it for production. For what I've read, independently of the postgresql max connections, I can set pgbouncer to a max_client_conn of 2000 (for example) with a default_pool_size of 20. Then all the apps connect to pgbouncer, and pgbouncer will multiplex connections to postgres. However I don't want to mix things in this post, regardless of pgbouncer, I would like to understand why I can't get to work web2py's pooling mechanism. I'm really grateful for your help! I'll continue trying to figure it out. Any comment or suggestion will be appreciated. Thanks! 2014-11-30 9:48 GMT-03:00 Niphlod niph...@gmail.com: did you restart the webserver ? I don't think that changing pool_size at runtime when connections are still open will make the number of active connection dropped. On Friday, November 28, 2014 8:48:07 PM UTC+1, Lisandro wrote: Mmm... I see. That was my understanding in the first place. At that time I did the maths, I had 10 apps, each one using a pool_size of 3. In postgresql.conf max_connections was set to 80. However this morning, with those numbers, almost every of my websites was throwing intermitent HTTP 500 errors, and the error tickets were all the same: FATAL: remaining connection slots are reserved for non-replication superuser connections. Right now, I have almost 13 websites, all of them with pool_size in 3, and max_connections in 80. However, if I check the table pg_stat_activity I can see 65 connections, and I can see there is 5 connections per app. I've tried even setting pool_size to 1 for one of the apps, restarted database server and webserver, but again I check pg_stat_activity and I see 5 connections for that app. ¿Am I missing something too ovbious? 2014-11-28 14:25 GMT-03:00 Niphlod nip...@gmail.com: On Friday, November 28, 2014 3:31:02 PM UTC+1, Lisandro wrote: I go back to this thread because today I ran with the same problem: postgresql reaching max_connection limits and, therefor, some of my websites throwing intermitent HTTP 500 errors (because web2py couldn't connect to the database). To remind, we are talking of a VPS with multiple instances of web2py running, all of them serving the same web2py app, each one connecting to a different postgresql database (however the database structure is the same accross all the databases). Each web2py instance is served by a lighttpd virtual host through fastcgi. Each virtual host (that is, each web2py instance) receives a different volume of traffic (that is obvious, they are different websites with different public). The original problem (the one that caused I post this question in the first place) was that the postgresql database server was reaching the max_connections limit and, in consecuence, some of the websites were throwing intermitent HTTP 500 errors (web2py couldn't connect to database). Then, the user oriented me with pool_size parameter of DAL constructor. Thanks again! I've been reading the web2py documentation about pooling [1] and I notice that it says that When the next http request arrives, web2py tries to recycle a connection from the pool and use that for the new transaction. If there are no available connections in the pool, a new connection is established. So, if I didn't get it wrong, I deduce that
Re: [web2py] Re: Web2py's included connection pooling VS external pooling software
p.s. by no threading I mean to use processes in place of threads. The number of processes is something you must tune based on server resources, 2xn where n is the number of cores is a safe choice. 2014-11-30 20:04 GMT+01:00 Michele Comitini michele.comit...@gmail.com: pool_size==number of threads in a web2py process. I suggest to work around the problem by setting the number of threads to 1 in you flup server. I.e. no threading. You should also see smoother performance across applications on higher loads. 2014-11-30 15:51 GMT+01:00 Lisandro Rostagno rostagnolisan...@gmail.com: Yes in deed. I've restarted the webserver and the database server. Recently I've tried setting pool_size to 1 for every app, that is, for every website. Restarted postgresql and webserver (lighttpd). And then I used this SQL statement to check the total count of connections for every database (or what it is the same, for every app, because every app has its own database): select datname, count(*) from pg_stat_activity group by datname order by datname; Just to remind, I have around 13 apps running, that is, 13 websites, 13 databases. With this new configuration of every app using a pool size of 1, I restarted the database server and the webserver, and then I ran the previous SQL statement to see the total connections for every app, and I see 5 idle connections for every app, that is, for every website that has some visitors browsing the site. A couple of the websites almost never have visitors, so, for those websites, there were no idle connections. Then I go to the homepage of those websites, rechecked connections, and there I see 5 idle connections for those websites. I already checked and re-checked the code of my app to be shure that I'm setting pool_size parameter correctly. In the other hand, I've been testing pgbouncer on localhost, reading about it, and I'll be setting it for production. For what I've read, independently of the postgresql max connections, I can set pgbouncer to a max_client_conn of 2000 (for example) with a default_pool_size of 20. Then all the apps connect to pgbouncer, and pgbouncer will multiplex connections to postgres. However I don't want to mix things in this post, regardless of pgbouncer, I would like to understand why I can't get to work web2py's pooling mechanism. I'm really grateful for your help! I'll continue trying to figure it out. Any comment or suggestion will be appreciated. Thanks! 2014-11-30 9:48 GMT-03:00 Niphlod niph...@gmail.com: did you restart the webserver ? I don't think that changing pool_size at runtime when connections are still open will make the number of active connection dropped. On Friday, November 28, 2014 8:48:07 PM UTC+1, Lisandro wrote: Mmm... I see. That was my understanding in the first place. At that time I did the maths, I had 10 apps, each one using a pool_size of 3. In postgresql.conf max_connections was set to 80. However this morning, with those numbers, almost every of my websites was throwing intermitent HTTP 500 errors, and the error tickets were all the same: FATAL: remaining connection slots are reserved for non-replication superuser connections. Right now, I have almost 13 websites, all of them with pool_size in 3, and max_connections in 80. However, if I check the table pg_stat_activity I can see 65 connections, and I can see there is 5 connections per app. I've tried even setting pool_size to 1 for one of the apps, restarted database server and webserver, but again I check pg_stat_activity and I see 5 connections for that app. ¿Am I missing something too ovbious? 2014-11-28 14:25 GMT-03:00 Niphlod nip...@gmail.com: On Friday, November 28, 2014 3:31:02 PM UTC+1, Lisandro wrote: I go back to this thread because today I ran with the same problem: postgresql reaching max_connection limits and, therefor, some of my websites throwing intermitent HTTP 500 errors (because web2py couldn't connect to the database). To remind, we are talking of a VPS with multiple instances of web2py running, all of them serving the same web2py app, each one connecting to a different postgresql database (however the database structure is the same accross all the databases). Each web2py instance is served by a lighttpd virtual host through fastcgi. Each virtual host (that is, each web2py instance) receives a different volume of traffic (that is obvious, they are different websites with different public). The original problem (the one that caused I post this question in the first place) was that the postgresql database server was reaching the max_connections limit and, in consecuence, some of the websites were throwing intermitent HTTP 500 errors (web2py couldn't connect to database). Then, the user oriented me with pool_size parameter of DAL constructor. Thanks again! I've been reading the web2py documentation about pooling [1] and I notice
[web2py] PostgreSQL migrate / fake_migrate_all failure with relation does not exists
My migrations suddenly failed with
Error:
class 'gluon.contrib.pg8000.errors.ProgrammingError' ('ERROR', '42P01',
'relation wiki_page does not exist')
This will happen for any relation trying to commenting them out etc.
Running a fake_migrate_all and the problem still persists, so I can not
find a way around manually modify my PostgreSQL schema at the moment.
Any suggestions?
Web2Py: 2.9.11
PostrgeSQL: 9.3
Tom Ø.
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[web2py] Form input show decimal fields with 4 decimals? (How to format input field in forms?)
I have the following field declaration
Field('test_BOF', 'decimal(10,2)',
label='BOF (mg/l)',
requires=IS_EMPTY_OR(IS_DECIMAL_IN_RANGE(dot=','))
In a SQLFORM this vil output as a number with a for numbered fraction e.g.
12,3000
input class=decimal id=plant_service_test_BOF name=test_BOF type=
text value=12,3000
How can i format this value?
Web2Py: 2.9.11
DB: PostgreSQL 9.3
Tom Ø.
(BTW maybe w2p should detect the requested number of decimals from the field
type in this case?)
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[web2py] Re: Forking/multiprocessing bug triggered by Web2Py launch directory
It's been a month since my post, so I was wondering if anyone has any hints
they might want to share about this.
Thanks,
rm
On Friday, 31 October 2014 19:32:06 UTC+5:30, Roshan Mathews wrote:
Hi,
I have a weird bug that seems to be triggered when using the multiprocessing
module, if web2py is launched from another directory.
I've tried to isolate the issue. To reproduce the issue, take a clean
web2py source tarball, and make the following changes:
1. to the end of *applications/welcome/controllers/default.py* add the
lines:
import alpha
def bravo():
return alpha.charlie()
2. create a new file *applications\welcome\modules\alpha.py* with the
following content
from multiprocessing import Process, Manager
def delta(output):
output.append('Hello, world!')
def charlie():
output = Manager().list()
p = Process(target=delta, args=(output,))
p.start()
p.join()
return output[0]
3. run it normally,
d:\code\temp\web2pypython web2py.py
... hit *http://127.0.0.1:8000/welcome/default/bravo
http://127.0.0.1:8000/welcome/default/bravo* ... everything works
4. change the current working directory, and relaunch
d:\code\temp\web2pycd ..
d:\code\temppython web2py\web2py.py
and you get an error. An unhelpful ticket, but the console has the
following traceback:
Traceback (most recent call last):
File string, line 1, in module
File D:\Python27\lib\multiprocessing\forking.py, line 380, in main
prepare(preparation_data)
File D:\Python27\lib\multiprocessing\forking.py, line 489, in prepare
file, path_name, etc = imp.find_module(main_name, dirs)
ImportError: No module named web2py
If it helps, I put a print statement before File
*D:\Python27\lib\multiprocessing\forking.py*, line 489, and it printed
out:
['d:\\code\\temp\\web2py\\web2py']
Something is causing the path to add the directory web2py twice!
If I run the code from one directory above that:
d:\code\tempcd ..
d:\codepython temp\web2py\web2py.py
then the following is printed:
['d:\\code\\temp\\web2py\\temp\\web2py']
Again the path is repeated twice.
Can anyone help me understand what is causing this issue? What is a
potential fix?
If it helps, the real bug got triggered when running web2py behind Apache
on Windows (modwsgi), since the wsgi script was launched from some random
Apache directory.
Regards,
Roshan Mathews
--
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[web2py] form warning
how to make a warning message in form based on some condition but allow to proceed validator? thnx -- 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) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[web2py] Re: Dynamic Upload Uploadfolder
You cannot do this uploadfolder= lambda r:... But this is a chicken-egg problem. You want r to be the row but the row is not created until after the file is uploaded therefore you cannot specify the upload folder as function of something that happens after. Please explain to us in english of the folder should depend on the upload and perhaps we can suggest a way to do it. On Saturday, 29 November 2014 14:08:20 UTC-6, James Burke wrote: How do you create a dynamic uploadfolder for an upload Field? I tried using: uploadfolder= lambda r: db.repository(r.repository_id).directory but i get the error message, I guess it doesn't have the same functionality as compute: cannot concatenate 'str' and 'function' objects I'm also using custom_store/retreive to maintain the files original filename def store_file(file, filename=None, path=None): path = path # applications/init/uploads if not os.path.exists(path): os.makedirs(path) pathfilename = os.path.join(path, filename) dest_file = open(pathfilename, 'wb') try: shutil.copyfileobj(file, dest_file) finally: dest_file.close() return filename If I can set the uploadfolder dynamically then it's passed to store_file as path. I also tried: path = db.repository(db.workbench(db.workbench.name==filename).repository ).directory But it can't find a record, I guess because store_file is run before the record is created in the db. Any suggestions? Thank you! -- 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) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[web2py] Re: Dynamic Upload Uploadfolder
Thank you for your help Massimo.
My model is defined as follows:
## Repository
db.define_table('repository',
Field('name', type='string'),
Field('directory', default='applications/init/uploads'),
format='%(name)s')
## Workbench - workbenches stored in the repository
db.define_table('workbench',
Field('repository', 'reference repository'),
Field('name', compute=lambda r:
db.workbench.workbench.retrieve(r.workbench)[0]),
Field('workbench', type='upload', required=True,
custom_store=store_file, custom_retrieve=retrieve_file ),
Field('sequence', 'integer', required=True),
Field('created_date', 'datetime', default=request.now, readable=False,
writable=False),
Field('modified_date', 'datetime', update=request.now, readable=False,
writable=False),
format='%(name)s')
I have a Repository table which is joined to the Workbench table (1:M - a
repository can have many workbenches )
In my controller I have a smartgrid for Repository which has Workbenches as
a linked table. After a Repository has been created, the user can create
Workbenches linked to the Repository. When creating the Workbench I want
the workbench file to be uploaded to the directory in the Repository
location field.
I hope that makes it clear what I'm trying to achieve.
Thank you.
On Monday, December 1, 2014 11:46:57 AM UTC+13, Massimo Di Pierro wrote:
You cannot do this uploadfolder= lambda r:...
But this is a chicken-egg problem. You want r to be the row but the row is
not created until after the file is uploaded therefore you cannot specify
the upload folder as function of something that happens after.
Please explain to us in english of the folder should depend on the upload
and perhaps we can suggest a way to do it.
On Saturday, 29 November 2014 14:08:20 UTC-6, James Burke wrote:
How do you create a dynamic uploadfolder for an upload Field?
I tried using:
uploadfolder= lambda r: db.repository(r.repository_id).directory
but i get the error message, I guess it doesn't have the same
functionality as compute:
cannot concatenate 'str' and 'function' objects
I'm also using custom_store/retreive to maintain the files original
filename
def store_file(file, filename=None, path=None):
path = path # applications/init/uploads
if not os.path.exists(path):
os.makedirs(path)
pathfilename = os.path.join(path, filename)
dest_file = open(pathfilename, 'wb')
try:
shutil.copyfileobj(file, dest_file)
finally:
dest_file.close()
return filename
If I can set the uploadfolder dynamically then it's passed to store_file
as path.
I also tried:
path = db.repository(db.workbench(db.workbench.name==filename).repository
).directory
But it can't find a record, I guess because store_file is run before the
record is created in the db.
Any suggestions?
Thank you!
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[web2py] Re: form warning
It depends on where you want to do. Personally I would not do this inside
the validators. I would instead implement the checks after the form is
accepted (since you want it to proceed anyway)
form = SQLFORM.factory(Field('number','double'))
if form.process().accepted:
if not form.vars.number == int(form.vars.number):
response.flash = 'ok but you did not insert an integer number'
On Sunday, 30 November 2014 13:43:09 UTC-6, Alen Cerovic wrote:
how to make a warning message in form based on some condition but allow to
proceed
validator?
thnx
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Re: [web2py] PostgreSQL migrate / fake_migrate_all failure with relation does not exists
My migrations suddenly failed with
Error:
class 'gluon.contrib.pg8000.errors.ProgrammingError' ('ERROR', '42P01',
'relation wiki_page does not exist')
If the relation does exist in Postgresql (which is why you want to
migrate), try and move the related file in /app/databases/ for that table
to another destination (say /var/tmp) and try again.
If the relation does not exist in Postgresql and you want the app not to be
able to create tables freely, change the migrate to True (and fake_migrate
to False), run the app once, and change migrate and fake_migrate to their
previous status.
Regards
Johann
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Because experiencing your loyal love is better than life itself,
my lips will praise you. (Psalm 63:3)
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Re: [web2py] Re: multiple select plugin and list reference
On 28 November 2014 at 13:13, Kevin Bethke kevin.bet...@gmail.com wrote: How do I open up the console to check for javascript errors? If you use Firefox, open Firebug (you may have to install it) in the developer menu. Chrome also have a menu item for developer tools and so Opera. Regards Johann -- Because experiencing your loyal love is better than life itself, my lips will praise you. (Psalm 63:3) -- 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) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[web2py] syntax for making var appear in view
Question one:
This is in controller:
vars=dict(Alex=99)
This is in view:
brAlex = {{ =response.get_vars.Alex}} br
error is: 'NoneType' object has no attribute 'Alex'. I assume this is not
the way to get a var to show up in view. What is correct syntax?
Question two:
bAlex var is in controller below:
db.Suggestion.suggestionTitle.represent = lambda v, r: A(v, _href=URL(
'view_specific_suggestion', args=r.id, vars=dict(bAlex=77)))
This is in view:
vars = {{=request.vars}}br
brbAlex = {{request.vars.bAlex}}br
This is results of view:
vars = Storage {'bAlex': '77'}
bAlex =
why is request.vars.bAlex above blank?
The resulting html address is correct
view_specific_suggestion?bAlex=77
thanks for the syntax assistance,
Alex Glaros
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