[web2py] Re: looking for volunteers to help proof-read book 5th ed.
I won't get it done before Saturday, but here's one: replace the first http://code.google.com/p/instant-press/; with https://github.com/rochacbruno/Movuca; On Tuesday, January 22, 2013 1:29:25 AM UTC+13, dhmorgan wrote: Signed, I hope! I just downloaded diff and am looking forward to the task. --
[web2py] Re: selecting database entries
I do want to select images because Images are added to articles later on. I
want to show a list of the newest pictures but I don't want to show 6
images for the same article(the list I show will contain 6 images)
On Thursday, January 24, 2013 8:41:42 PM UTC+1, Derek wrote:
Well, you don't want to select images then, you want to select articles -
then get a single image attached to the article.
On Thursday, January 24, 2013 8:51:42 AM UTC-7, BlueShadow wrote:
Hi I got two tables in my application one for images and one for
articles. an artical can have multiple images attached to it.
What I want to do is displaying a list of the newest images but there
should only be one per article
db.define_table('Images',
Field('Headline',length=1024),
Field('Image','upload'),
Field('Submitted','datetime',default=datetime.datetime.now(),writable
=False,readable=False),
format = '%(Headline)s'
)
db.define_table('Article',
Field('Title',length=512),
Field('Content','text'),
Field('Submitted','datetime',default=datetime.datetime.now()),
Field('TopImage','reference Images', requires=IS_EMPTY_OR(IS_IN_DB(db
, db.Images.id), null=None)),
Field('BottomlImage','reference Images', requires=IS_EMPTY_OR(
IS_IN_DB(db, db.Images.id), null=None)),
Field('BottomrImage','reference Images', requires=IS_EMPTY_OR(
IS_IN_DB(db, db.Images.id), null=None)),
Field('InTextImage','list:reference Images')
)
Right now I got no clue how I should start to solve the problem.
I want to do this because one article could have like 10 pictures and
would completly fill the list of new images.
--
Re: [web2py] Re: new setup-web2py-nginx-uwsgi-ubuntu.sh
I am deploying on VMs that are relatively easy to clone, so I opted for separate servers for redmine and web2py, for performance and security. I obviously also separated the database to be on its own server. Since it's all VMs on the same physical machine, the virtual-network is really fast, and since every VM uses its own set of hard-drive space, its own memory space, and its own CPU core, they can all run concurrently, even in single threaded cases. Security comes from each only having the services they each require and nothing more (so no python in the redmine or postgres servers, no ruby on the web2py or postgres servers, etc.) As for old-version of web2py, I am actually not kidding. We have a web2py application that we've been working on for 3 years now, and moving that to the new web2py version revealed itself to be non-trivial. Backward compatibility is apparently not as well adhered to as we would expect. I am all for going for the latest and greatest, but we have a schedule to keep in development, and upgrading web2py is not too much a priority now... Unless it provides measurable performance benefits, which it doesn't in our case, from what I briefly tested. On Thu, Jan 24, 2013 at 7:01 PM, Richard Vézina ml.richard.vez...@gmail.com wrote: I will look at Niphold changes and update my script when I get time. I have no intention to port the w2p-redmine script to CentOS. I would not put redmine and web2py on 2 differents servers, I would put all the web app on one server (one html server) and the database on an other server. But that is fancy stuff and the script will not integrate that since it only help deploy faster with a basic config that you should adapt to your particular needs. Old version of web2py are you kinding me or what?! Richard On Thu, Jan 24, 2013 at 7:12 PM, Arnon Marcus a.m.mar...@gmail.comwrote: Great to see this coming along ! Few questions: 1. Would it be moduralized enough to separate the redmine and web2py parts? 2. if not, can I use it on 2 servers, and then remove redmine in one and web2py on the other? 3. Does this supports older web2py versions (say, 1.8) ? 4. Can somebody port this to CentOS ? Is there a CentOS expert in this group? On Thursday, January 24, 2013 12:40:18 PM UTC-8, Niphlod wrote: ok, made it more modular, and now web2py config for uwsgi is in ini-style (far more readable). If you come from previous script, before executing this please delete /etc/uwsgi/web2py.xml . the new /etc/uwsgi/web2py.ini will be created with the exact same options. thanks Paolo, patch attached. -- -- --
Re: [web2py] Re: new setup-web2py-nginx-uwsgi-ubuntu.sh
Is there a benefit for using nginx as rps for apache? What are the pros/cons for such an arrangement over uwsgi ? On Fri, Jan 25, 2013 at 4:36 AM, Arnon Marcus a.m.mar...@gmail.com wrote: I am deploying on VMs that are relatively easy to clone, so I opted for separate servers for redmine and web2py, for performance and security. I obviously also separated the database to be on its own server. Since it's all VMs on the same physical machine, the virtual-network is really fast, and since every VM uses its own set of hard-drive space, its own memory space, and its own CPU core, they can all run concurrently, even in single threaded cases. Security comes from each only having the services they each require and nothing more (so no python in the redmine or postgresservers, no ruby on the web2py or postgres servers, etc.) As for old-version of web2py, I am actually not kidding. We have a web2py application that we've been working on for 3 years now, and moving that to the new web2py version revealed itself to be non-trivial. Backward compatibility is apparently not as well adhered to as we would expect. I am all for going for the latest and greatest, but we have a schedule to keep in development, and upgrading web2py is not too much a priority now... Unless it provides measurable performance benefits, which it doesn't in our case, from what I briefly tested. On Thu, Jan 24, 2013 at 7:01 PM, Richard Vézina ml.richard.vez...@gmail.com wrote: I will look at Niphold changes and update my script when I get time. I have no intention to port the w2p-redmine script to CentOS. I would not put redmine and web2py on 2 differents servers, I would put all the web app on one server (one html server) and the database on an other server. But that is fancy stuff and the script will not integrate that since it only help deploy faster with a basic config that you should adapt to your particular needs. Old version of web2py are you kinding me or what?! Richard On Thu, Jan 24, 2013 at 7:12 PM, Arnon Marcus a.m.mar...@gmail.comwrote: Great to see this coming along ! Few questions: 1. Would it be moduralized enough to separate the redmine and web2py parts? 2. if not, can I use it on 2 servers, and then remove redmine in one and web2py on the other? 3. Does this supports older web2py versions (say, 1.8) ? 4. Can somebody port this to CentOS ? Is there a CentOS expert in this group? On Thursday, January 24, 2013 12:40:18 PM UTC-8, Niphlod wrote: ok, made it more modular, and now web2py config for uwsgi is in ini-style (far more readable). If you come from previous script, before executing this please delete /etc/uwsgi/web2py.xml . the new /etc/uwsgi/web2py.ini will be created with the exact same options. thanks Paolo, patch attached. -- -- --
[web2py] auth.wiki how to format all fields
Dear all, I've just came across the fact that with the following code: def wiki(): return auth.wiki(render='html') and visiting something like app/controller/wiki/about in the view I will get only the 'content' field without any other useful wiki's field such as Title, modified_on just to name a few. Checking the code, I figured out that the problem is due to the test: extension==html (see tools.py:5090) Could we return the other fields too? Paolo --
[web2py] Re: How do I use web2py to make a simple GUI?
my two cents: as long as you don't need web services (and you don't if I understood you correctly) you are probably better off with a JavaScript framework without a server component (i.e. without web2py). The AngularJS framework is one of many frameworks that come with good documentation. I'd recommend digging into these examples, if you want to go this way: http://rabidgadfly.com/2012/12/angularjs-simple-calculator/ The example there also works on mobile devices. Also: http://docs.angularjs.org/tutorial/ Am Mittwoch, 23. Januar 2013 22:27:22 UTC+1 schrieb Kaare Mikkelsen: Hi, the answer to this question may well be that I should leave web2py alone and use something else, so I had better start explaining what I'm trying to do. I'm sorry if my post comes across as long-winded, feel free to skip to the question at the bottom: I want to make a small app for a special, quite simple, calculation that I do fairly often. I thought it would be a good exercise to learn how to make this as a web-application (rather than digging into how to make apps for my smartphone OS) that I could use through the browser on my phone. I'm reasonably comfortable with programming, and getting better at python (though I must say I'm still more comfortable with Matlab and c++). So, really, first I just need to make input fields, a go-button, and preferably learn how to accommodate different display sizes. Later, naturally, there is a range of features that could be fun to tackle. But, when reading the online book, it seems the focus is on very different things, with much more advanced functionality than what I need. Somehow I feel there should be a bit more detail between hello world and making my own wiki. I have read the Overview thoroughly, and bits and pieces of the rest. I found web2py from googling how to use python to build a web application, which lead me to django, which lead to comparisons of web2py and django, leading me to think that this was the more beginner-friendly tool. QUESTION: Is there a place where I can learn about making input forms (animating the buttons, defining what happens when they're clicked etc.), either from scratch or a general class? I have no experience with html, but of course I am expecting to have to get familiar with that as well. Are these simple objects things one should be comfortable with before tackling advanced tools such as web2py? (if so, how?) I hope the above wasn't too long, and that someone can point me in the right direction :) --
Re: [web2py] Re: How do I use web2py to make a simple GUI?
On Fri, Jan 25, 2013 at 1:59 AM, Alan Etkin spame...@gmail.com wrote: Hi, the answer to this question may well be that I should leave web2py alone and use something else, so I had better start Note that there's a special mobile plugin for web2py. See the instructions at web2py dev server/admin/plugin_jqmobile/about -- Hi Alan, That mobile thing is interesting, but have you noticed that 'edit' doesn't work? Also does that provide a mechanism for generating files that I can then package into a PhoneGap app? --
[web2py] web2py and PhoneGap — Do we really have to completely rewrite our views in e.g.: AngularJS?
I have written all my models, controllers and views in web2py. Now I am refactoring my various apps as services. So the controllers will expose the model as JSON and handle any input JSON; and my AngularJS app consumes the service. This leaves me without form generation+manipulation and without authentication (hacky solutions do exist though). For PhoneGap, do I really have to rewrite my views in e.g.: AngularJS? Thanks for all suggestions, Alec Taylor PS: One solution is iframe, but I found that to be very slow and lacking history and [most] storage related features. Another solution would be to write some JavaScript to grab the initial homepage; and let web2py take over from there, however I doubt that'll work nicely. PPS: Perhaps a script to generate the relevant web2py view components as HTML+JS could be arranged? --
Re: [web2py] Re: Auth with migrate=False
Hi Massimo, just wondering if you have found something better for this. Paolo 2013/1/17 Massimo Di Pierro massimo.dipie...@gmail.com Me neither. Let's think of a solution on web2py_developers. On Wednesday, 16 January 2013 01:59:27 UTC-6, Paolo valleri wrote: Hi Massimo, personally I don't like this: db._LAZY_TABLES['**yourtablename'][2]['on_define'**] = it is neither easy to remember nor easy to understand what it dows. Something more friendly would be better from my point of view, If adding an on_define could create misunderstanding since the parameter is different from the 'common' on_define, we could use an other totally fresh name, i.e., auth.set_settings, auth.customize and so on to do the same thing. -- Paolo -- -- Paolo --
Re: [web2py] Re: new setup-web2py-nginx-uwsgi-ubuntu.sh
The only benefit I see nginx over apache from my reading, is that nginx memory usage and cpu usage will not grow that much even if you add massive number of users since Nginx is event-based it doesn't need to spawn new processes or threads for each request, so its memory usage is very low http://www.wikivs.com/wiki/Apache_vs_nginx Richard On Fri, Jan 25, 2013 at 9:08 AM, Arnon Marcus a.m.mar...@gmail.com wrote: Is there a benefit for using nginx as rps for apache? What are the pros/cons for such an arrangement over uwsgi ? On Fri, Jan 25, 2013 at 4:36 AM, Arnon Marcus a.m.mar...@gmail.comwrote: I am deploying on VMs that are relatively easy to clone, so I opted for separate servers for redmine and web2py, for performance and security. I obviously also separated the database to be on its own server. Since it's all VMs on the same physical machine, the virtual-network is really fast, and since every VM uses its own set of hard-drive space, its own memory space, and its own CPU core, they can all run concurrently, even in single threaded cases. Security comes from each only having the services they each require and nothing more (so no python in the redmine or postgresservers, no ruby on the web2py or postgres servers, etc.) As for old-version of web2py, I am actually not kidding. We have a web2py application that we've been working on for 3 years now, and moving that to the new web2py version revealed itself to be non-trivial. Backward compatibility is apparently not as well adhered to as we would expect. I am all for going for the latest and greatest, but we have a schedule to keep in development, and upgrading web2py is not too much a priority now... Unless it provides measurable performance benefits, which it doesn't in our case, from what I briefly tested. On Thu, Jan 24, 2013 at 7:01 PM, Richard Vézina ml.richard.vez...@gmail.com wrote: I will look at Niphold changes and update my script when I get time. I have no intention to port the w2p-redmine script to CentOS. I would not put redmine and web2py on 2 differents servers, I would put all the web app on one server (one html server) and the database on an other server. But that is fancy stuff and the script will not integrate that since it only help deploy faster with a basic config that you should adapt to your particular needs. Old version of web2py are you kinding me or what?! Richard On Thu, Jan 24, 2013 at 7:12 PM, Arnon Marcus a.m.mar...@gmail.comwrote: Great to see this coming along ! Few questions: 1. Would it be moduralized enough to separate the redmine and web2py parts? 2. if not, can I use it on 2 servers, and then remove redmine in one and web2py on the other? 3. Does this supports older web2py versions (say, 1.8) ? 4. Can somebody port this to CentOS ? Is there a CentOS expert in this group? On Thursday, January 24, 2013 12:40:18 PM UTC-8, Niphlod wrote: ok, made it more modular, and now web2py config for uwsgi is in ini-style (far more readable). If you come from previous script, before executing this please delete /etc/uwsgi/web2py.xml . the new /etc/uwsgi/web2py.ini will be created with the exact same options. thanks Paolo, patch attached. -- -- -- --
Re: [web2py] Re: web2py 2.0 DAL no longer usable for mysql stored procedures
Hi Massimo,
I think this is a real problem.
In a web2py shell you can do:
rows = db.executesql(select * from charts)
but you cannot do:
rows = db.executesql(select * from charts; select * from charts;)
it raises the error above.
I think the problem is related to multiple resultsets. That example query
return 2 resultset, as well a stored procedure could return multiple
resultset. I think web2py mess something when a multiquery or a stored
procudere returns more than one resultset.
Mysql user guide says here (
http://dev.mysql.com/doc/refman/5.0/en/commands-out-of-sync.html):
If you get Commands out of sync; you can't run this command now in your
client code, you are calling client functions in the wrong order.
This can happen, for example, if you are using
mysql_use_result()http://dev.mysql.com/doc/refman/5.0/en/mysql-use-result.html
and
try to execute a new query before you have called
mysql_free_result()http://dev.mysql.com/doc/refman/5.0/en/mysql-free-result.html.
It can also happen if you try to execute two queries that return data
without calling
mysql_use_result()http://dev.mysql.com/doc/refman/5.0/en/mysql-use-result.html
or
mysql_store_result()http://dev.mysql.com/doc/refman/5.0/en/mysql-store-result.html
in
between.
2012/9/28 Yarin ykess...@gmail.com
Done: http://code.google.com/p/web2py/issues/detail?id=1037
On Thursday, September 27, 2012 4:33:37 PM UTC-4, Massimo Di Pierro wrote:
Is this issue still open? If so, can you open a ticket about it?
Massimo
On Monday, 24 September 2012 14:38:14 UTC-5, Yarin wrote:
db.py:
db.define_table('mytable',Fiel**d('myfield','string'))
sproc:
DELIMITER //
CREATE PROCEDURE TestSproc()
BEGIN
SELECT COUNT(*) FROM mytable;
END //
DELIMITER;
tests.py
NOTE: Tests 1-3 will fail every time in wsgi/linux environments.
From the web2py command line, they will work once, until another
operation is called on the db, INCLUDING commit().
In web2py 1, you can run these once successfully, but subsequent sql
operations on the current connection return None results.
def test_1():
''' RESULT: ProgrammingError: (2014, Commands out of sync; you cant
run this command now) '''
sql = '''CALL TestSproc();'''
results = db.executesql(sql, as_dict=True)
return str(results)
def test_2():
''' RESULT: ProgrammingError: (2014, Commands out of sync; you cant
run this command now) '''
sql = CALL TestSproc();
results = db.executesql(sql, as_dict=True)
db.commit()
return str(results)
def test_3():
''' RESULT: ProgrammingError: (2014, Commands out of sync; you cant
run this command now) '''
sql = CALL TestSproc();
db._adapter.execute(sql)
results = db._adapter.cursor.fetchall()
return str(results)
def test_4():
''' RESULT: Works '''
import contrib.pymysql as pymysql
sql = CALL TestSproc();
conn = pymysql.connect(host='127.0.0.**1', port=3306, user='root',passwd
='root', db='test')
cur = conn.cursor(pymysql.cursors.Di**ctCursor)
cur.execute(sql)
results = cur.fetchall()
cur.close()
conn.close()
return str(results)
On Monday, September 24, 2012 1:10:14 PM UTC-4, Massimo Di Pierro wrote:
can you show us some of your code. This may be a concurrency issues. I
cannot thing anything we change that would affect the behavior.
On Sunday, 23 September 2012 22:43:28 UTC-5, Yarin wrote:
After upgrading to web2py 2.0, we can no longer use the DAL or mysql
adapters to make MySQL stored procedure calls.
In web2py 1.x I had
reportedhttps://groups.google.com/d/msg/web2py/VaGJjwE3eYQ/GPa3xRe-HVsJhow
mysql stored procedures weren't working for us in certain
circumstances- however we were able to circumvent those issues by simply
creating a new DAL instance everytime we had to call a sproc. With the new
DAL, that's no longer an option- indeed, any call to a stored procedure
seems to fail in any attempt through the DAL or mysql adapter.
- Fails with both pymysql and mysqldb drivers
- Fails when calling commit() immediately after
- We did side-by-side comparisons with web2py 1.x on same server,
pointing to same db, and confirmed this fails only in 2.0
- You can make sproc calls using the DAL straight from the web2py
shell, but only if you don't call commit.
Stack trace:
Traceback (most recent call last):
File /opt/web-apps/web2py/gluon/**main.py, line 580, in wsgibase
BaseAdapter.close_all_**instances('rollback')
File /opt/web-apps/web2py/gluon/**dal.py, line 511, in
close_all_instances
getattr(instance, action)()
File /opt/web-apps/web2py/gluon/**dal.py, line 1633, in rollback
return self.connection.rollback()
ProgrammingError: (2014, Commands out of sync; you can't run this
command now)
Right now the only option we've arrive at is to make sproc calls
directly through the pymysql driver API, one per connection.
--
--
Profile: http://it.linkedin.com/in/compagnucciangelo
--
Re: [web2py] Re: web2py 2.0 DAL no longer usable for mysql stored procedures
True. For now you need to separate calls to db.executesql if you have
multiple queries.
On Friday, 25 January 2013 11:54:18 UTC-6, AngeloC wrote:
Hi Massimo,
I think this is a real problem.
In a web2py shell you can do:
rows = db.executesql(select * from charts)
but you cannot do:
rows = db.executesql(select * from charts; select * from charts;)
it raises the error above.
I think the problem is related to multiple resultsets. That example query
return 2 resultset, as well a stored procedure could return multiple
resultset. I think web2py mess something when a multiquery or a stored
procudere returns more than one resultset.
Mysql user guide says here (
http://dev.mysql.com/doc/refman/5.0/en/commands-out-of-sync.html):
If you get Commands out of sync; you can't run this command now in your
client code, you are calling client functions in the wrong order.
This can happen, for example, if you are using
mysql_use_result()http://dev.mysql.com/doc/refman/5.0/en/mysql-use-result.html
and
try to execute a new query before you have called
mysql_free_result()http://dev.mysql.com/doc/refman/5.0/en/mysql-free-result.html.
It can also happen if you try to execute two queries that return data
without calling
mysql_use_result()http://dev.mysql.com/doc/refman/5.0/en/mysql-use-result.html
or
mysql_store_result()http://dev.mysql.com/doc/refman/5.0/en/mysql-store-result.html
in
between.
2012/9/28 Yarin ykes...@gmail.com javascript:
Done: http://code.google.com/p/web2py/issues/detail?id=1037
On Thursday, September 27, 2012 4:33:37 PM UTC-4, Massimo Di Pierro wrote:
Is this issue still open? If so, can you open a ticket about it?
Massimo
On Monday, 24 September 2012 14:38:14 UTC-5, Yarin wrote:
db.py:
db.define_table('mytable',Fiel**d('myfield','string'))
sproc:
DELIMITER //
CREATE PROCEDURE TestSproc()
BEGIN
SELECT COUNT(*) FROM mytable;
END //
DELIMITER;
tests.py
NOTE: Tests 1-3 will fail every time in wsgi/linux environments.
From the web2py command line, they will work once, until another
operation is called on the db, INCLUDING commit().
In web2py 1, you can run these once successfully, but subsequent sql
operations on the current connection return None results.
def test_1():
''' RESULT: ProgrammingError: (2014, Commands out of sync; you cant
run this command now) '''
sql = '''CALL TestSproc();'''
results = db.executesql(sql, as_dict=True)
return str(results)
def test_2():
''' RESULT: ProgrammingError: (2014, Commands out of sync; you cant
run this command now) '''
sql = CALL TestSproc();
results = db.executesql(sql, as_dict=True)
db.commit()
return str(results)
def test_3():
''' RESULT: ProgrammingError: (2014, Commands out of sync; you cant
run this command now) '''
sql = CALL TestSproc();
db._adapter.execute(sql)
results = db._adapter.cursor.fetchall()
return str(results)
def test_4():
''' RESULT: Works '''
import contrib.pymysql as pymysql
sql = CALL TestSproc();
conn = pymysql.connect(host='127.0.0.**1', port=3306, user='root',passwd
='root', db='test')
cur = conn.cursor(pymysql.cursors.Di**ctCursor)
cur.execute(sql)
results = cur.fetchall()
cur.close()
conn.close()
return str(results)
On Monday, September 24, 2012 1:10:14 PM UTC-4, Massimo Di Pierro wrote:
can you show us some of your code. This may be a concurrency issues. I
cannot thing anything we change that would affect the behavior.
On Sunday, 23 September 2012 22:43:28 UTC-5, Yarin wrote:
After upgrading to web2py 2.0, we can no longer use the DAL or mysql
adapters to make MySQL stored procedure calls.
In web2py 1.x I had
reportedhttps://groups.google.com/d/msg/web2py/VaGJjwE3eYQ/GPa3xRe-HVsJhow
mysql stored procedures weren't working for us in certain
circumstances- however we were able to circumvent those issues by simply
creating a new DAL instance everytime we had to call a sproc. With the
new
DAL, that's no longer an option- indeed, any call to a stored procedure
seems to fail in any attempt through the DAL or mysql adapter.
- Fails with both pymysql and mysqldb drivers
- Fails when calling commit() immediately after
- We did side-by-side comparisons with web2py 1.x on same server,
pointing to same db, and confirmed this fails only in 2.0
- You can make sproc calls using the DAL straight from the web2py
shell, but only if you don't call commit.
Stack trace:
Traceback (most recent call last):
File /opt/web-apps/web2py/gluon/**main.py, line 580, in wsgibase
BaseAdapter.close_all_**instances('rollback')
File /opt/web-apps/web2py/gluon/**dal.py, line 511, in
close_all_instances
getattr(instance, action)()
File /opt/web-apps/web2py/gluon/**dal.py, line 1633, in rollback
return self.connection.rollback()
ProgrammingError: (2014, Commands out of sync; you can't run this
[web2py] Re: auth.wiki how to format all fields
Dear all, I've just came across the fact that with the following code:
A workaround:
(in the model)
auth.wiki(resolve=False)
page = db(db.wiki_page.slug==request.function).select().first()
(in the view)
{{=page.title}}
--
[web2py] Re: web2py and PhoneGap — Do we really have to completely rewrite our views in e.g.: AngularJS?
So the controllers will expose the model as JSON and handle any input JSON; and my AngularJS app consumes the service. For exposing the model, there's a proposal for new dal methods here http://code.google.com/p/web2py/issues/detail?id=1301 A working prototype for testing: http://www.web2pyslices.com/slice/show/1592/exposing-a-db-model-for-client-side-processing --
Re: [web2py] Re: new setup-web2py-nginx-uwsgi-ubuntu.sh
Yeah, I already know that, I was asking something else: You can have a hybrid setup of Apache +nginx, where nginx is hosting apache as a reverse-proxy. According to what I read, this kind of setup is very common, especially for php servers, as the php processing that apache operates is single-threaded, and so apache becomes a bottleneck without a reverse-proxy hosting it. Once you add-in something like nginx in front of it, then now the php processing will not be blocking the process of the hosted session, and will run in parallel to it. Now, I'm by far not a technical expert on these issues, but I am very good at conceptualized understanding of performance. My question was referring to the way nginx would handle the web2py processes via uwsgi, and how it would compare to the php case, if/when an apache server is plugged-in between nginx and web2py. I hope my question is clearer now. --
Re: [web2py] Re: new setup-web2py-nginx-uwsgi-ubuntu.sh
My second question, was basically to get a vibe for the pros/cons of this hybrid setup vs. the plain and pure vanilla setup that this script probably generates. On Fri, Jan 25, 2013 at 12:08 PM, Arnon Marcus a.m.mar...@gmail.com wrote: Yeah, I already know that, I was asking something else: You can have a hybrid setup of Apache +nginx, where nginx is hosting apache as a reverse-proxy. According to what I read, this kind of setup is very common, especially for php servers, as the php processing that apache operates is single-threaded, and so apache becomes a bottleneck without a reverse-proxy hosting it. Once you add-in something like nginxin front of it, then now the php processing will not be blocking the process of the hosted session, and will run in parallel to it. Now, I'm by far not a technical expert on these issues, but I am very good at conceptualized understanding of performance. My question was referring to the way nginx would handle the web2py processes via uwsgi, and how it would compare to the php case, if/when an apache server is plugged-in between nginx and web2py. I hope my question is clearer now. --
Re: [web2py] Re: new setup-web2py-nginx-uwsgi-ubuntu.sh
seems you missed a point uwsgi here is not a module, is an executable that does one job and it does it well (actually, very well, and there's a lot of it that can be used that is outside the scope of this script). It could be used as a standalone highperformance webserver, but nginx is placed in front of it to serve static files and to take care of Ddos attacks. If you want to use apache behind nginx instead of uwsgi behind nginx you're going basically to suffer wasted cpu, ram, a much harder to maintain config. If you want to run python on apache because it's your default webserver, than mod_wsgi is the way to go. Have to install apache just to run python, it's only a waste of resources. --
Re: [web2py] Re: new setup-web2py-nginx-uwsgi-ubuntu.sh
10x for clearing things out - you're right, I didn't do too much resource on uwsgi, and just assumed that it is, for nginx. what mod_wsgi is for apache. So I guess I had it wrong. My current (soon to be old) setup is running apache + mod_wsgi on windows 7, so I know all about the headaches that comes from setting this up... I would be more than glad to put apache behind me for good, if it would offer not performance improvements to this script's setup the way it does for php... On that note, how exactly is uwsgi handling web2py processes, as would be configured in this script? Is it easily customizable after the fact? Are there any any pros/cons for different scenarios that one should be aware of? On Fri, Jan 25, 2013 at 12:21 PM, Niphlod niph...@gmail.com wrote: seems you missed a point uwsgi here is not a module, is an executable that does one job and it does it well (actually, very well, and there's a lot of it that can be used that is outside the scope of this script). It could be used as a standalone highperformance webserver, but nginx is placed in front of it to serve static files and to take care of Ddos attacks. If you want to use apache behind nginx instead of uwsgi behind nginx you're going basically to suffer wasted cpu, ram, a much harder to maintain config. If you want to run python on apache because it's your default webserver, than mod_wsgi is the way to go. Have to install apache just to run python, it's only a waste of resources. -- --
Re: [web2py] Re: new setup-web2py-nginx-uwsgi-ubuntu.sh
Oh, and what about memcache? Can web2py benefit from it? Is there somewhere an explanation about this? On Fri, Jan 25, 2013 at 12:48 PM, Arnon Marcus a.m.mar...@gmail.com wrote: 10x for clearing things out - you're right, I didn't do too much resource on uwsgi, and just assumed that it is, for nginx. what mod_wsgi is for apache. So I guess I had it wrong. My current (soon to be old) setup is running apache + mod_wsgi on windows 7, so I know all about the headaches that comes from setting this up... I would be more than glad to put apache behind me for good, if it would offer not performance improvements to this script's setup the way it does for php... On that note, how exactly is uwsgi handling web2py processes, as would be configured in this script? Is it easily customizable after the fact? Are there any any pros/cons for different scenarios that one should be aware of? On Fri, Jan 25, 2013 at 12:21 PM, Niphlod niph...@gmail.com wrote: seems you missed a point uwsgi here is not a module, is an executable that does one job and it does it well (actually, very well, and there's a lot of it that can be used that is outside the scope of this script). It could be used as a standalone highperformance webserver, but nginx is placed in front of it to serve static files and to take care of Ddos attacks. If you want to use apache behind nginx instead of uwsgi behind nginx you're going basically to suffer wasted cpu, ram, a much harder to maintain config. If you want to run python on apache because it's your default webserver, than mod_wsgi is the way to go. Have to install apache just to run python, it's only a waste of resources. -- --
Re: [web2py] Re: new setup-web2py-nginx-uwsgi-ubuntu.sh
I am using memcached for caching cache.ram and cache.disk, the configuration is really easy, this is mine: if not request.is_local: from gluon.contrib.memcache import MemcacheClient memcache_servers = ['127.0.0.1:11211'] cache.memcache = MemcacheClient(request, memcache_servers) cache.ram = cache.disk = cache.memcache but I don't know how to understand the gain of using it. Any idea? paolo On Friday, January 25, 2013 9:51:22 PM UTC+1, Arnon Marcus wrote: Oh, and what about memcache? Can web2py benefit from it? Is there somewhere an explanation about this? On Fri, Jan 25, 2013 at 12:48 PM, Arnon Marcus a.m.m...@gmail.comjavascript: wrote: 10x for clearing things out - you're right, I didn't do too much resource on uwsgi, and just assumed that it is, for nginx. what mod_wsgi is for apache. So I guess I had it wrong. My current (soon to be old) setup is running apache + mod_wsgi on windows 7, so I know all about the headaches that comes from setting this up... I would be more than glad to put apache behind me for good, if it would offer not performance improvements to this script's setup the way it does for php... On that note, how exactly is uwsgi handling web2py processes, as would be configured in this script? Is it easily customizable after the fact? Are there any any pros/cons for different scenarios that one should be aware of? On Fri, Jan 25, 2013 at 12:21 PM, Niphlod nip...@gmail.com javascript: wrote: seems you missed a point uwsgi here is not a module, is an executable that does one job and it does it well (actually, very well, and there's a lot of it that can be used that is outside the scope of this script). It could be used as a standalone highperformance webserver, but nginx is placed in front of it to serve static files and to take care of Ddos attacks. If you want to use apache behind nginx instead of uwsgi behind nginx you're going basically to suffer wasted cpu, ram, a much harder to maintain config. If you want to run python on apache because it's your default webserver, than mod_wsgi is the way to go. Have to install apache just to run python, it's only a waste of resources. -- --
Re: [web2py] Re: new setup-web2py-nginx-uwsgi-ubuntu.sh
Well, the way I currently understand this, is as follows: Web2py uses execfile for most of it's work (models, controllers and views), so no reload() is needed in production whenever a file get's modified. The flip-side of this, is that there can be no cache in these module-files. Then the ram/disk cache is for getting from these executed-modules to the python process running web2py. But this is still assuming that there is a single process. If nginx/uwsgi launches multiple processes of web2py, than this cache will no longer be helpful - each time a process is launched, the cache would have to be re-populated - this could mostly mean doing database queries. That's a very bad thing for performance. I don't know about web2py's implementation of memcached or about memcacheat all, but I guess its meant for solving that issue, right? On Fri, Jan 25, 2013 at 1:00 PM, Paolo valleri paolo.vall...@gmail.comwrote: I am using memcached for caching cache.ram and cache.disk, the configuration is really easy, this is mine: if not request.is_local: from gluon.contrib.memcache import MemcacheClient memcache_servers = ['127.0.0.1:11211'] cache.memcache = MemcacheClient(request, memcache_servers) cache.ram = cache.disk = cache.memcache but I don't know how to understand the gain of using it. Any idea? paolo On Friday, January 25, 2013 9:51:22 PM UTC+1, Arnon Marcus wrote: Oh, and what about memcache? Can web2py benefit from it? Is there somewhere an explanation about this? On Fri, Jan 25, 2013 at 12:48 PM, Arnon Marcus a.m.m...@gmail.comwrote: 10x for clearing things out - you're right, I didn't do too much resource on uwsgi, and just assumed that it is, for nginx. whatmod_wsgi is for apache. So I guess I had it wrong. My current (soon to be old) setup is running apache + mod_wsgi on windows 7, so I know all about the headaches that comes from setting this up... I would be more than glad to put apache behind me for good, if it would offer not performance improvements to this script's setup the way it does for php... On that note, how exactly is uwsgi handling web2py processes, as would be configured in this script? Is it easily customizable after the fact? Are there any any pros/cons for different scenarios that one should be aware of? On Fri, Jan 25, 2013 at 12:21 PM, Niphlod nip...@gmail.com wrote: seems you missed a point uwsgi here is not a module, is an executable that does one job and it does it well (actually, very well, and there's a lot of it that can be used that is outside the scope of this script). It could be used as a standalone highperformance webserver, but nginx is placed in front of it to serve static files and to take care of Ddos attacks. If you want to use apache behind nginx instead of uwsgi behind nginx you're going basically to suffer wasted cpu, ram, a much harder to maintain config. If you want to run python on apache because it's your default webserver, than mod_wsgi is the way to go. Have to install apache just to run python, it's only a waste of resources. -- -- --
[web2py] Detect change in sqlform.grid
I have a SQLFORM.grid, and I hook into edits with 'onupdate'. Is there an easy way to tell which field(s) have been edited? It seems that by the time onupdate is called, the database has already been updated, so comparing the form record with the db shows no differences. Thanks. -- We're looking for smart Linux people: http://www.tiger-computing.co.uk/jobs/linux-support-consultant/ --
[web2py] Re: error in alwaydata ?
thanks alan, is perfect, but the password admin El miércoles, 23 de enero de 2013 20:51:32 UTC-5, samuel bonilla escribió: i am trying this command in alwaysdata hosting with ssh, for up my web2py application, but i get this error: http://forum.alwaysdata.com/viewtopic.php?id=1859 chmod +x web2py/web2py.fcgi chmod: cannot acess 'web2py/web2py.fcgi' : no such file or directory help me ? --
[web2py] line contains NULL byte
am trying to import CSV file
error states either:
line contains null byte
or
'NoneType' object has no attribute 'type'
there are no null lines in the data. Here is all of the data:
Adipose Tissue,A specialized form of connective tissue consisting primarily
of adipocytes -fat cells-- surrounded by a meshwork of collagen
fibers.,Body Fat
db.define_table('Word5',Field('Wordname','string',notnull=False), Field
('definition', 'string',notnull=False), Field ('synonyms',
'string',notnull=False))
Is there any way to force Web2py to accept anything?
thanks,
Alex
--
[web2py] Re: Detect change in sqlform.grid
SQLFORM(...).process(...) takes two callback functions process(onvalidation=lambda form:, onaccept=lambda form:) on validation is called when form is submitted, passes validation, and before the database is updated. On Friday, 25 January 2013 17:16:40 UTC-6, backseat wrote: I have a SQLFORM.grid, and I hook into edits with 'onupdate'. Is there an easy way to tell which field(s) have been edited? It seems that by the time onupdate is called, the database has already been updated, so comparing the form record with the db shows no differences. Thanks. -- We're looking for smart Linux people: http://www.tiger-computing.co.uk/jobs/linux-support-consultant/ --
[web2py] Re: Running web2py on Hostgator Shared hosting!
This is really just a run web2py using apache question if you are using a dedicated host. It should be no different from setting it up on a Cent OS or RedHat Linux box at home. On Friday, January 4, 2013 9:06:43 PM UTC-6, Abdiel Cruz Robaina wrote: Sorry revive so late the post, but I need help, I want to run web2py in a subdomain from a dedicated server in Hostgator, now how make to configure a virtualhost with mod_wsgi ? if anyone has any idea how I would appreciate help Thank --
