Re: [web2py] no json - cont.
On Mar 1, 2011, at 5:18 AM, darkblue_b wrote: as per the very simple instructions, I wrote a controller function to return a few items.. generic.html and generic.xml work, but generic.json and generic.rss fail just learning still, I searched the newsgroup and found Lorin Rivers Jan 13, 2:26 pm OK, if I specify which columns get returned in my rows, generic.json returns no json. If my function returns rows.as_list(), generic.json works, but my generic.csv breaks. I figured out this, though, which seems to work, but I don't know if it's wise. Also, it doesn't seem like it should be necessary. def function(): dbset = db() records = dbset.select(db.table.field1, db.table.field2, orderby=db.table.field1) otherrecords = records.as_list() Then in my generic.csv, I use records and in generic.json I use otherrecords. -- does this apply ? is this a FAQ? I would like to get to authenticated JSON next thanks -Brian @jonathan: Yes, a more detailed error messages than no json would be awesome. @brian: if the other generics work, then it's probably a non-serializable value. In my case, it was a date object. Once I realized that, I converted the date to a string and it then worked peachily. -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Using multiprocessing in web2py
David, If you can do any of the analysis ahead of time and store that, it might help. That's what I had to do. In my case, I also discovered that the database I was using wanted more RAM than I could give it at the time and had to do my real-time analysis in smaller chunks. -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] Setting the title tag
One of the mental challenges I have with mvc/layout approach is how to assign values from the inside-out. Almost all the work I have done so far is in the views. I'd like to dynamically change the title tag (e.g., title in the head element). How does that work? -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) smime.p7s Description: S/MIME cryptographic signature
Re: [web2py] Re: Setting the title tag
OK, I'm getting there. How do I specify response.title in my view? On Feb 9, 2011, at 12:55 PM, DenesL wrote: If you are using the default layout.html file then just set response.title to whatever title you want. On Feb 9, 1:50 pm, Lorin Rivers lriv...@mosasaur.com wrote: One of the mental challenges I have with mvc/layout approach is how to assign values from the inside-out. Almost all the work I have done so far is in the views. I'd like to dynamically change the title tag (e.g., title in the head element). How does that work? -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) smime.p7s 6KViewDownload -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) smime.p7s Description: S/MIME cryptographic signature
Re: [web2py] Re: Setting the title tag
Denes,
I'm a little dense. You sent me down the right path and I just had to struggle
with it a little.
I didn't realize you could simply build response.title in in the controller and
it just works.
Then I had to unroll the tuple I built.
It's all good now, though! Thanks!
In case someone stumbles upon this thread, here's what I did:
controller:
theTitle = ctab.title, str(timestart), to, str(timeend)
response.title = .join(theTitle)
layout.html:
title{{=response.title or URL()}}/title
--
Lorin Rivers
Mosasaur: Killer Technical Marketing http://www.mosasaur.com
mailto:lriv...@mosasaur.com
512/203.3198 (m)
[web2py] rows.find doesn't find anything
semaphore_query = db4.rollup_semaphore.id 0 semaphore_set = db4(semaphore_query) semaphore_rows = semaphore_set.select() for row in semaphore_rows.find(lambda row: row.table_name[0]=='data_table'): print row returns nothing. While: print db4(db4.rollup_semaphore.table_name=='data_table').select() Returns: rollup_semaphore.id,rollup_semaphore.table_name,rollup_semaphore.rollup_status 1,data_table,False Which is what I expect the first to return. What am I doing wrong? -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: rows.find doesn't find anything
Right! Hey, it might be good to have an example in The Book that uses a different construction than the one I mistakenly tried to use. On Jan 18, 2011, at 15:30 , Massimo Di Pierro wrote: for row in semaphore_rows.find(lambda row: row.table_name[0]=='data_table'): print row should be for row in semaphore_rows.find(lambda row: row.table_name=='data_table'): print row else you compare only the first char with 'date_table' On Jan 18, 1:05 pm, Lorin Rivers lriv...@mosasaur.com wrote: semaphore_query = db4.rollup_semaphore.id 0 semaphore_set = db4(semaphore_query) semaphore_rows = semaphore_set.select() for row in semaphore_rows.find(lambda row: row.table_name[0]=='data_table'): print row returns nothing. While: print db4(db4.rollup_semaphore.table_name=='data_table').select() Returns: rollup_semaphore.id,rollup_semaphore.table_name,rollup_semaphore.rollup_sta tus 1,data_table,False Which is what I expect the first to return. What am I doing wrong? -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] Basic Python ignorance? simplejson throwing TypeError(key + repr(key) + is not a string)
No doubt this is my base Python ignorance being the problem.
I've made some progress on my pivot problem, using this recipe
http://code.activestate.com/recipes/334695-pivotcrosstabdenormalization-of-a-normalized-list/
(actually, the improved one from the comments).
I'm getting what I want now (or close to it):
[ { 'FreezeTime': datetime.datetime(2010, 12, 12, 21, 0),
('S',): 643.882600715039,
('S0001',): '',
('S0002',): 621.511925599709},
{ 'FreezeTime': datetime.datetime(2010, 12, 12, 22, 0),
('S',): 159.230736027886,
('S0001',): '',
('S0002',): 166.628191452988}, ...
]
But when I try to convert it to json using this in my view:
var optimizerdata = {{response.write(json(optimizers), escape=False)}};
Where optimizers is a list that looks like this:
It throws the error, saying this:
TypeError: key ('S0001',) is not a string
--
Lorin Rivers
Mosasaur: Killer Technical Marketing http://www.mosasaur.com
mailto:lriv...@mosasaur.com
512/203.3198 (m)
Re: [web2py] social network idea
Actually, Facebook also uses social graphs to identify people you may know. This part of it is a pretty tough problem, but there are some pretty sharp people on this list… On Jan 17, 2011, at 13:43 , Massimo Di Pierro wrote: Most social network assue you know who your friends are and allow you to share info with your friends. How about the opposite? Something like a bookmarking app that tells me who my friends should be based on physical distance and recent common bookmarks? It seems to me the main problem to me is that a lot of people are alone they because do not necessarily share interests with their colleagues and family members. Facebook is popular because it allows people to connect with people that they knew and therefore assume had something in common. Until people find out time has passed by and there is not really much to talk about. You can be a scientist and soon find your page polluted with somebody's horoscope. - a bookmarking system like http://radbox.me/ - when you bookmark something you tag with fixed categories - a way to sort/organize and rate own bookmarks using mouse drag and drop. - you have a profile and public pages showing your bookmarks only (can be used by a prof to share links with students for example) - Once logged in you can see other users nearby that bookmarked - independently - the same links, and filter then by location, gender, age, bookmark category (could compete with match.com too) - You can then choose to be notified when a given person bookmarks something new (like twitter) - You can check who is following your bookmarks. Massimo -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] Trying to pivot some date, need to add nulls for missing rows
I have a list of distinct values for a column StringID: 'S', 'S0001', S0002'. A FreezeTime value can have 1 to 3 rows (one row for each StringID) like this: FreezeTime, StringID, Po_avg_sum 12/13/2010 22:00:00, S, 76 12/13/2010 22:00:00, S0001, 265 12/13/2010 22:00:00, S0002, 195 or it could have just one or two of the StringIDs for a particular FreezeTime. What I want to get is this: FreezeTime, po_S, po_S0001, po_S0002 12/13/2010 22:00:00, 76, 265, 195 The library I found that will do the pivot I need works fine if all three StringIDs are present, but if any are missing, it breaks. So what I need to do is insert into my list null values for Po_avg_sum for that StringID and FreezeTime so that my FreezeTime row would look like this: 12/13/2010 22:00:00,76,,195 If the 'S0001' data was missing for that time. It's probably really easy, but I'm struggling. -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] Output of sum(), simplifying the JSON
Controller:
export_optimizer_records =
dbset(db.table.FreezeTime,db.table.StringID,db.table.Po_avg.sum(),groupby=..FreezeTime|..StringID).as_list()
View:
var optimizerdata = {{response.write(json(export_optimizer_records),
escape=False)}};
The JSON looks like this:
[{
panel_1hrs: {
FreezeTime: 2010-12-12 19:00:00,
StringID: S0001
},
_extra: {
sum(panel_1hrs.Po_avg): 519.912549612443
}
},
{
panel_1hrs: {
FreezeTime: 2010-12-12 19:00:00,
StringID: S0002
},
_extra: {
sum(panel_1hrs.Po_avg): 532.390706326218
}
}]
What I want is this:
[{
FreezeTime: 2010-12-12 19:00:00,
StringID: S0001,
Po_avg_sum: 519.912549612443
},
{
FreezeTime: 2010-12-12 19:00:00,
StringID: S0002,
Po_avg_sum: 532.390706326218
}]
What's the easiest way to get that?
--
Lorin Rivers
Mosasaur: Killer Technical Marketing http://www.mosasaur.com
mailto:lriv...@mosasaur.com
512/203.3198 (m)
[web2py] generic.csv works perfectly, generic.json reports no json?
In my app, I can build somewhat complex urls (ex: /Debug/reports/exportRecords.csv/strings/60?att=FreezeTimeatt=StringIDatt=Vi_avgatt=Vo_avgatt=Ii_avgatt=Io_avgatt=Pi_avgatt=Po_avgorderby=FreezeTimeorderby=StringID that give me precisely the csv output I require. The function exportRecords returns a dict (records=records) and records is a rows object. If I change the url from using exportRecords.csv to using exportRecords.json it reports no json. What gives? How can I make this more generic? I'd like to be able to use the same url conventions to return json for use in charts. Thanks! -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] Best practice for including python libraries with my app
I am using tabular http://www.parsemydata.com/tabular (which requires numpy), as well as psycopg2 and a number of other libraries. The default location for such things is one of the local site-packages directories, which of course, doesn't migrate to another machine automagically. What's the best practice for this sort of thing? -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Best practice for including python libraries with my app
That's exactly the kind of user experience I want to avoid. On Jan 13, 2011, at 13:34 , Alexandre Andrade wrote: try to import, and if fails, generate message to user to install it on the system Alexandre Andrade Hipercenter.com Classificados Gratuitos e Inteligentes 2011/1/13 Lorin Rivers lriv...@mosasaur.com I am using tabular http://www.parsemydata.com/tabular (which requires numpy), as well as psycopg2 and a number of other libraries. The default location for such things is one of the local site-packages directories, which of course, doesn't migrate to another machine automagically. What's the best practice for this sort of thing? -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Atenciosamente -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: generic.csv works perfectly, generic.json reports no json?
What do I put in generic.json to expose the details of the exception? On Jan 13, 2011, at 13:46 , Wikus van de Merwe wrote: Do you have the generic.json view? Change it to print out the details of the exception thrown there. My guess is that you need escaping=True. -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] JSON questions and a workaround
OK, if I specify which columns get returned in my rows, generic.json returns no json. If my function returns rows.as_list(), generic.json works, but my generic.csv breaks. I figured out this, though, which seems to work, but I don't know if it's wise. Also, it doesn't seem like it should be necessary. def function(): dbset = db() records = dbset.select(db.table.field1, db.table.field2, orderby=db.table.field1) otherrecords = records.as_list() Then in my generic.csv, I use records and in generic.json I use otherrecords. -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: Not open source yet... but
Thanks, Massimo! Looking forward to checking out the processing stuff! On Dec 30, 2010, at 18:32 , mdipierro wrote: Source: http://code.google.com/p/emte-trading/ -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] Cron: what happens if a process isn't finished and the next time to start it comes again?
I am working on moving some of the computation-intensive processes to a cron-launched scheme. I have some that run every minute, every 2 minutes, every 5 minutes and every 15 minutes. In production, it's possible that the volume of incoming data would result in the task not finishing before its next cron slot fires again. In development , however, I can flood the system quite easily by importing data in larger chunks. At the moment, my laptop (fairly decent machine) is essentially unusable because there are so many python processes consuming RAM. Here's a slightly cleaned-up sample of ps: 6716 ttys0000:01.70 ../Python web2py.py -a 1234 -i 127.0.0.1 -p 8000 6722 ttys0000:36.46 ../Python ../web2py.py -J -M -S Debug/DAQ/setup_DAQ -a recycle 6724 ttys0000:00.00 (Python) 7239 ttys0000:00.00 (Python) 7543 ttys0000:00.00 (Python) 7641 ttys0000:00.00 (Python) 7720 ttys0000:00.00 (Python) 7819 ttys0000:00.00 (Python) 8781 ttys0000:00.00 (Python) 8783 ttys0000:00.00 (Python) 8784 ttys0000:00.00 (Python) 8787 ttys0000:00.00 (Python) 8789 ttys0000:00.00 (Python) 8790 ttys0000:00.00 (Python) 8791 ttys0000:00.00 (Python) 8792 ttys0000:00.00 (Python) 8867 ttys0000:00.00 (Python) 8868 ttys0000:00.00 (Python) 8872 ttys0000:00.00 (Python) 8946 ttys0000:00.00 (Python) 8947 ttys0000:00.00 (Python) 8949 ttys0000:00.00 (Python) 8950 ttys0000:00.00 (Python) 8951 ttys0000:00.00 (Python) 8948 ttys0000:00.46 ../Python ../web2py.py -J -M -S Debug/rounding/array_1minsRollup -a recycle 7320 ttys0001:04.75 ../Python ../web2py.py -J -M -S Debug/rounding/data_tableRollup -a recycle 7424 ttys0000:56.54 ../Python ../web2py.py -J -M -S Debug/rounding/data_tableRollup -a recycle 7544 ttys0000:50.19 ../Python ../web2py.py -J -M -S Debug/rounding/data_tableRollup -a recycle 7643 ttys0000:42.32 ../Python ../web2py.py -J -M -S Debug/rounding/data_tableRollup -a recycle 7722 ttys0000:36.26 ../Python ../web2py.py -J -M -S Debug/rounding/data_tableRollup -a recycle 7820 ttys0000:30.36 ../Python ../web2py.py -J -M -S Debug/rounding/data_tableRollup -a recycle 7899 ttys0000:25.12 ../Python ../web2py.py -J -M -S Debug/rounding/data_tableRollup -a recycle 8013 ttys0000:20.99 ../Python ../web2py.py -J -M -S Debug/rounding/data_tableRollup -a recycle 8090 ttys0000:17.28 ../Python ../web2py.py -J -M -S Debug/rounding/data_tableRollup -a recycle 8189 ttys0000:14.05 ../Python ../web2py.py -J -M -S Debug/rounding/data_tableRollup -a recycle 8271 ttys0000:11.55 ../Python ../web2py.py -J -M -S Debug/rounding/data_tableRollup -a recycle 8364 ttys0000:07.50 ../Python ../web2py.py -J -M -S Debug/rounding/data_tableRollup -a recycle 8455 ttys0000:07.51 ../Python ../web2py.py -J -M -S Debug/rounding/data_tableRollup -a recycle 8557 ttys0000:05.08 ../Python ../web2py.py -J -M -S Debug/rounding/data_tableRollup -a recycle 8635 ttys0000:00.73 ../Python ../web2py.py -J -M -S Debug/rounding/data_tableRollup -a recycle 8458 ttys0000:18.24 ../Python ../web2py.py -J -M -S Debug/rounding/panel_1minsRollup -a recycle 8638 ttys0000:16.68 ../Python ../web2py.py -J -M -S Debug/rounding/panel_1minsRollup -a recycle 8786 ttys0000:00.57 ../Python ../web2py.py -J -M -S Debug/rounding/panel_1minsRollup -a recycle 7061 ttys0000:43.78 ../Python ../web2py.py -J -M -S Debug/rounding/stringdataRollup -a recycle 7140 ttys0000:12.82 ../Python ../web2py.py -J -M -S Debug/rounding/stringdataRollup -a recycle 7240 ttys0000:12.35 ../Python ../web2py.py -J -M -S Debug/rounding/stringdataRollup -a recycle 7319 ttys0000:12.37 ../Python ../web2py.py -J -M -S Debug/rounding/stringdataRollup -a recycle 7423 ttys0000:12.20 ../Python ../web2py.py -J -M -S Debug/rounding/stringdataRollup -a recycle 7541 ttys0000:12.10 ../Python ../web2py.py -J -M -S Debug/rounding/stringdataRollup -a recycle 7640 ttys0000:12.26 ../Python ../web2py.py -J -M -S Debug/rounding/stringdataRollup -a recycle 7721 ttys0000:12.31 ../Python ../web2py.py -J -M -S Debug/rounding/stringdataRollup -a recycle 7818 ttys0000:12.59 ../Python ../web2py.py -J -M -S Debug/rounding/stringdataRollup -a recycle 7898 ttys0000:12.53 ../Python ../web2py.py -J -M -S Debug/rounding/stringdataRollup -a recycle 8012 ttys0000:12.46 ../Python ../web2py.py -J -M -S Debug/rounding/stringdataRollup -a recycle 8092 ttys0000:12.46 ../Python ../web2py.py -J -M -S Debug/rounding/stringdataRollup -a recycle 8188 ttys0000:12.26 ../Python ../web2py.py -J -M -S Debug/rounding/stringdataRollup -a recycle 8270 ttys0000:11.96 ../Python ../web2py.py -J -M -S Debug/rounding/stringdataRollup -a recycle 8363 ttys0000:12.05 ../Python ../web2py.py -J -M -S Debug/rounding/stringdataRollup -a recycle 8454 ttys0000:12.12 ../Python ../web2py.py -J -M -S
[web2py] List of fields to orderby expression
How do I turn a list of fields to an orderby expression? In other words, If I have this: [db.table.field1, db.table.field2] I want this: db(db.table).select(orderby = db.table.field1 | db.table.field2) Thanks! -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: List of fields to orderby expression
Yep, thanks! On Dec 20, 2010, at 11:28 , mdipierro wrote: I think this is what you are asking: myorderlist = [db.table.field1, db.table.field2] orderby = reduce(lambda a,b:a|b, myorderlist) rows = db(db.table).select(orderby = orderby) On Dec 20, 11:07 am, Lorin Rivers lriv...@mosasaur.com wrote: How do I turn a list of fields to an orderby expression? In other words, If I have this: [db.table.field1, db.table.field2] I want this: db(db.table).select(orderby = db.table.field1 | db.table.field2) Thanks! -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] logging.conf for debugging
I have logging writing to the console, but not to the log file. Starting with the example, I changed WARNING to DEBUG (everywhere--as soon as I get it working, I'll be more selective), I set [keys] to keys=consoleHandler,rotatingFileHandler. logs/web2py.log gets created on startup, but never gets any data written to it, despite the copious log events in the console. What am I missing?
Re: [web2py] logging.conf for debugging
[loggers]
keys=root,rocket,markdown,web2py,rewrite,app,welcome,cron
# the default configuration is console-based (stdout) for backward compatibility
#
# note that file-based handlers are thread-safe but not mp-safe;
# for mp-safe logging, configure the appropriate syslog handler
[handlers]
#keys=consoleHandler
keys=consoleHandler,rotatingFileHandler
#keys=osxSysLogHandler
[formatters]
keys=simpleFormatter
[logger_root]
level=INFO
handlers=consoleHandler
[logger_web2py]
level=INFO
handlers=consoleHandler
qualname=web2py
propagate=0
[logger_cron]
level=INFO
handlers=consoleHandler
qualname=web2py.cron
propagate=0
[logger_rewrite]
level=INFO
qualname=web2py.rewrite
handlers=consoleHandler
propagate=0
# generic app handler
[logger_app]
level=INFO
qualname=web2py.app
handlers=consoleHandler
propagate=0
# welcome app handler
[logger_welcome]
level=WARNING
qualname=web2py.app.welcome
handlers=consoleHandler
propagate=0
# loggers for legacy getLogger calls: Rocket and markdown
[logger_rocket]
level=INFO
handlers=consoleHandler
qualname=Rocket
propagate=0
[logger_markdown]
level=WARNING
handlers=consoleHandler
qualname=markdown
propagate=0
[handler_consoleHandler]
class=StreamHandler
level=INFO
formatter=simpleFormatter
args=(sys.stdout,)
# Rotating file handler
# mkdir logs in the web2py base directory if not already present
# args: (filename[, mode[, maxBytes[, backupCount[, encoding[, delay])
#
[handler_rotatingFileHandler]
class=handlers.RotatingFileHandler
level=INFO
formatter=simpleFormatter
args=(logs/web2py.log, a, 100, 5)
[handler_osxSysLogHandler]
class=handlers.SysLogHandler
level=INFO
formatter=simpleFormatter
args=(/var/run/syslog, handlers.SysLogHandler.LOG_DAEMON)
[handler_linuxSysLogHandler]
class=handlers.SysLogHandler
level=INFO
formatter=simpleFormatter
args=(/dev/log, handlers.SysLogHandler.LOG_DAEMON)
[handler_remoteSysLogHandler]
class=handlers.SysLogHandler
level=INFO
formatter=simpleFormatter
args=(('sysloghost.domain.com', handlers.SYSLOG_UDP_PORT),
handlers.SysLogHandler.LOG_DAEMON)
[formatter_simpleFormatter]
format=%(asctime)s - %(name)s - %(levelname)s - %(message)s
datefmt=
On Dec 16, 2010, at 16:47 , Jonathan Lundell wrote:
On Dec 16, 2010, at 11:00 AM, Lorin Rivers wrote:
I have logging writing to the console, but not to the log file.
Starting with the example, I changed WARNING to DEBUG (everywhere--as
soon as I get it working, I'll be more selective), I set [keys] to
keys=consoleHandler,rotatingFileHandler.
logs/web2py.log gets created on startup, but never gets any data
written to it, despite the copious log events in the console.
What am I missing?
Please post your logging.conf.
--
Lorin Rivers
Mosasaur: Killer Technical Marketing http://www.mosasaur.com
mailto:lriv...@mosasaur.com
512/203.3198 (m)
[web2py] Rounding time
I have a function that I use to round time increments. I just realized it fails when the time rolls over the 24 hour period. I also found myself needing to make a second version for rounding to hours. Anyone care to take a stab at fixing it to handle the rollover AND hours? def round_off(mins, secs, to_nearest=1): div_result, remainder = divmod(mins, to_nearest) if remainder 7: return to_nearest * div_result elif remainder 7: return to_nearest * (div_result + 1) else:#remainder == 7 if secs 30: return to_nearest * div_result else: return to_nearest * (div_result + 1) If the the time is 2010, 12, 16, 23, 54 and the to_nearest is 5 (round to nearest 5 minutes), it works. If the time is 2010, 12, 16, 23, 55 it errors with the message minutes must be 0..59 I use it like this: finishtime = lasttime.replace(minute=round_off(lasttime.minute, lasttime.second, to_nearest=5), second=0) I'm too tired ignorant to figure it out. -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: Simple debugger
I couldn't get NetBeans to debug my web2py code. On a Mac. Eclipse was a challenge to get set up and in one case, where I had some oddly broken code, the breakpoints didn't work how I expected them to. I had to step into EVERYTHING, down into the bowels of web2py, which was a real pain. I expect that if I have a BP at the beginning of a function and another inside that function that I should be able to resume and have it break again at the second BP, but that was not reliable for me. Very frustrating. I'm going to try ipdb. On Dec 13, 2010, at 23:32 , weheh wrote: I want to go to Eclipse but didn't succeed in getting it to install run the first time through. On Dec 14, 12:13 am, Branko Vukelic bg.bra...@gmail.com wrote: On Tue, Dec 14, 2010 at 5:45 AM, Bruno Rocha rochacbr...@gmail.com wrote: Someone else has any debug tip or advice for sharing? I used this:http://pypi.python.org/pypi/ipdb All the IPython goodness + pdb-style debugging. You get auto-complete and command history, too. ;) -- Branko Vukelić bg.bra...@gmail.com stu...@brankovukelic.com Check out my blog:http://www.brankovukelic.com/ Check out my portfolio:http://www.flickr.com/photos/foxbunny/ Registered Linux user #438078 (http://counter.li.org/) I hang out on identi.ca:http://identi.ca/foxbunny Gimp Brushmakers Guildhttp://bit.ly/gbg-group -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] basic views question
I have an app Debug, a controller reports.py, functions in that controller
index and test (plus a bunch of others).
def index(): return dict(message=reports index)
def test(): return dict(message=hello from reports.py)
In the directory structure ../views:
appadmin.html
/default:
display_debug_form.html
index.html
generic.csv
generic.html
layout.html
test.html
web2py_ajax.html
When I go to ../Debug/reports/test.html
I get the generic.html view instead of test.html
Contents of test.html:
{{response.files.append(URL(r=request,c='static/stylesheets',f='styles.css'))}}
{{extend 'layout.html'}}
What's up?
--
Lorin Rivers
Mosasaur: Killer Technical Marketing http://www.mosasaur.com
mailto:lriv...@mosasaur.com
512/203.3198 (m)
Re: [web2py] basic views question
No, it's in reports.py, a controller.
On Dec 14, 2010, at 13:37 , Bruno Rocha wrote:
if def test() is defined inside default.py, the test.html should be in
/views/default/test.html
2010/12/14 Lorin Rivers lriv...@mosasaur.com
I have an app Debug, a controller reports.py, functions in that
controller index and test (plus a bunch of others).
def index(): return dict(message=reports index)
def test(): return dict(message=hello from reports.py)
In the directory structure ../views:
appadmin.html
/default:
display_debug_form.html
index.html
generic.csv
generic.html
layout.html
test.html
web2py_ajax.html
When I go to ../Debug/reports/test.html
I get the generic.html view instead of test.html
Contents of test.html:
{{response.files.append(URL(r=request,c='static/stylesheets',f='styles.css'))}}
{{extend 'layout.html'}}
What's up?
--
Lorin Rivers
Mosasaur: Killer Technical Marketing http://www.mosasaur.com
mailto:lriv...@mosasaur.com
512/203.3198 (m)
--
Bruno Rocha
http://about.me/rochacbruno/bio
--
Lorin Rivers
Mosasaur: Killer Technical Marketing http://www.mosasaur.com
mailto:lriv...@mosasaur.com
512/203.3198 (m)
Re: [web2py] basic views question
Thanks, I got it now.
On Dec 14, 2010, at 14:10 , Bruno Rocha wrote:
so, you need views inside /views/reports/.html
2010/12/14 Lorin Rivers lriv...@mosasaur.com
No, it's in reports.py, a controller.
On Dec 14, 2010, at 13:37 , Bruno Rocha wrote:
if def test() is defined inside default.py, the test.html should be in
/views/default/test.html
2010/12/14 Lorin Rivers lriv...@mosasaur.com
I have an app Debug, a controller reports.py, functions in that
controller index and test (plus a bunch of others).
def index(): return dict(message=reports index)
def test(): return dict(message=hello from reports.py)
In the directory structure ../views:
appadmin.html
/default:
display_debug_form.html
index.html
generic.csv
generic.html
layout.html
test.html
web2py_ajax.html
When I go to ../Debug/reports/test.html
I get the generic.html view instead of test.html
Contents of test.html:
{{response.files.append(URL(r=request,c='static/stylesheets',f='styles.css'))}}
{{extend 'layout.html'}}
What's up?
--
Lorin Rivers
Mosasaur: Killer Technical Marketing http://www.mosasaur.com
mailto:lriv...@mosasaur.com
512/203.3198 (m)
--
Bruno Rocha
http://about.me/rochacbruno/bio
--
Lorin Rivers
Mosasaur: Killer Technical Marketing http://www.mosasaur.com
mailto:lriv...@mosasaur.com
512/203.3198 (m)
--
Bruno Rocha
http://about.me/rochacbruno/bio
--
Lorin Rivers
Mosasaur: Killer Technical Marketing http://www.mosasaur.com
mailto:lriv...@mosasaur.com
512/203.3198 (m)
Re: [web2py] Simple debugger
Branko, Can you explain how you use iPython and ipdb together to debug web2py apps? How do I invoke web2py? How do I pass parameters to it like I do when invoking it with python (e.g., python web2py -a mumble -p 8000 -i 127.0.0.1) Thanks! On Dec 13, 2010, at 23:13 , Branko Vukelic wrote: On Tue, Dec 14, 2010 at 5:45 AM, Bruno Rocha rochacbr...@gmail.com wrote: Someone else has any debug tip or advice for sharing? I used this: http://pypi.python.org/pypi/ipdb All the IPython goodness + pdb-style debugging. You get auto-complete and command history, too. ;) -- Branko Vukelić bg.bra...@gmail.com stu...@brankovukelic.com Check out my blog: http://www.brankovukelic.com/ Check out my portfolio: http://www.flickr.com/photos/foxbunny/ Registered Linux user #438078 (http://counter.li.org/) I hang out on identi.ca: http://identi.ca/foxbunny Gimp Brushmakers Guild http://bit.ly/gbg-group -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Simple debugger
Branko, Thanks for that. When I attempt to invoke web2py in iPython it seems to hang. I tried this: ipython web2py.py -a 1234 -i 127.0.0.1 -p 8000 On Dec 14, 2010, at 15:09 , Branko Vukelic wrote: Think of ipdb as of a print statement on steroids. If you want to debug a particular part of your app, you simply add this before that section in the source code: import ipdb; ipdb.set_trace() When the server hits that part of the code, it will halt execution and display a prompt in the terminal. It's a regular IPython shell that accepts arbitrary python statements and expressions, as well as a debugging environment that supports pdb-style commands, like ``s`` for step, ``r`` for return (I think), etc. I don't remember the exact commands, but I think you can get help by typing ``h`` or ``help``. On Tue, Dec 14, 2010 at 10:02 PM, Lorin Rivers lriv...@mosasaur.com wrote: Branko, Can you explain how you use iPython and ipdb together to debug web2py apps? How do I invoke web2py? How do I pass parameters to it like I do when invoking it with python (e.g., python web2py -a mumble -p 8000 -i 127.0.0.1) Thanks! On Dec 13, 2010, at 23:13 , Branko Vukelic wrote: On Tue, Dec 14, 2010 at 5:45 AM, Bruno Rocha rochacbr...@gmail.com wrote: Someone else has any debug tip or advice for sharing? I used this: http://pypi.python.org/pypi/ipdb All the IPython goodness + pdb-style debugging. You get auto-complete and command history, too. ;) -- Branko Vukelić bg.bra...@gmail.com stu...@brankovukelic.com Check out my blog: http://www.brankovukelic.com/ Check out my portfolio: http://www.flickr.com/photos/foxbunny/ Registered Linux user #438078 (http://counter.li.org/) I hang out on identi.ca: http://identi.ca/foxbunny Gimp Brushmakers Guild http://bit.ly/gbg-group -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Branko Vukelić bg.bra...@gmail.com stu...@brankovukelic.com Check out my blog: http://www.brankovukelic.com/ Check out my portfolio: http://www.flickr.com/photos/foxbunny/ Registered Linux user #438078 (http://counter.li.org/) I hang out on identi.ca: http://identi.ca/foxbunny Gimp Brushmakers Guild http://bit.ly/gbg-group -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] Translate this SQL to DAL?
THere are a few aspects of the DAL that I can't quite get my head around. For example, how would I do this? select max(reqtime) from arraydata_table where rollupid = 0 -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: anybody use the web2py IRC chat?
I wish IRC was a little more active... On Dec 12, 2010, at 8:30 , Luther Goh Lu Feng wrote: I do. But there are only about 10 people in the channel each time and many are afk. The mailing list is a better bet. On Dec 12, 10:18 pm, Branko Vukelic bg.bra...@gmail.com wrote: On Sun, Dec 12, 2010 at 8:48 AM, weheh richard_gor...@verizon.net wrote: Just curious. I don't use it, but I probably would if I thought I could get a fast response from an expert. Don't worry, you'll get answers here fast enough. -- Branko Vukelić bg.bra...@gmail.com stu...@brankovukelic.com Check out my blog:http://www.brankovukelic.com/ Check out my portfolio:http://www.flickr.com/photos/foxbunny/ Registered Linux user #438078 (http://counter.li.org/) I hang out on identi.ca:http://identi.ca/foxbunny Gimp Brushmakers Guildhttp://bit.ly/gbg-group -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] Test for null not in a form
Sometimes in the app I'm working on the default values aren't set in a column (for reasons outside of my control). So, instead of using the default value as a filter, I need to also test for null. How do I do that in the DAL? In other words, select * from table where field is not NULL; -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: Test for null not in a form
No kidding. That should be called out in The Book. On Dec 12, 2010, at 17:14 , mdipierro wrote: db(db.mytable.myfield!=None).select() On Dec 12, 5:02 pm, Lorin Rivers lriv...@mosasaur.com wrote: Sometimes in the app I'm working on the default values aren't set in a column (for reasons outside of my control). So, instead of using the default value as a filter, I need to also test for null. How do I do that in the DAL? In other words, select * from table where field is not NULL; -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: Test for null not in a form
As far as I can tell, the only place null is mentioned in the DAL page is in the definition of tables. On Dec 12, 2010, at 17:35 , mdipierro wrote: The book never says that None is NULL? I will check. That would be a big omission. Massimo On Dec 12, 5:24 pm, Lorin Rivers lriv...@mosasaur.com wrote: No kidding. That should be called out in The Book. On Dec 12, 2010, at 17:14 , mdipierro wrote: db(db.mytable.myfield!=None).select() On Dec 12, 5:02 pm, Lorin Rivers lriv...@mosasaur.com wrote: Sometimes in the app I'm working on the default values aren't set in a column (for reasons outside of my control). So, instead of using the default value as a filter, I need to also test for null. How do I do that in the DAL? In other words, select * from table where field is not NULL; -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] web2py entry on wikipedia needs to be updated
I made a few updates, version, book editions. On Dec 12, 2010, at 18:23 , Bruno Rocha wrote: web2py entry on wikipedia[0] seens to be a little outdated showing deprecated information about web2py. [ Who uses.., latest version, applied stack, T2 T3(??), book editions, wiki, bazzar(?)...] I never created or edited wikipedia pages before, I need to learn a little about this markup to start helping on this page, if there is someone here who has the ability for writing in wikipedia and willing to help to keep this page updated, include a logo. some screenshots of new admin and welcome, mentioning the /poweredby and application wizard, and also the stand alone feature of the new dal. This is important because a search[1] on google shows wikipedia entry as the 6th, bing[2] as the 3th, 2nd on Yahoo[3] and most people could take first impressions about the framework by this wikipedia entry. [0] http://en.wikipedia.org/wiki/Web2py [1] http://www.google.com/#sclient=psyhl=ensite=source=hpq=web2py [2] http://www.bing.com/search?q=web2pygo=form=QBREfilt=lf [3] http://search.yahoo.com/search;_ylt=AgEtnq9o2r4IzMOQfEIWyNubvZx4?p=web2pytoggle=1cop=mssei=UTF-8fr=yfp-t-701 -- Bruno Rocha http://about.me/rochacbruno/bio -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] Basic models question
If a model is defined in db.py, everything in that application has access to it, correct? The only reason to define a model in a different file is if you only need to access that particular model in a similarly named controller, correct? Thanks! -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] routes conundrum
We've encountered a bug where our app behaves differently if you access it via /AppName/ than it does if you access it via /AppName/default/index What would likely explain that and how should I go about ensuring identical behavior in either case? -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] routes conundrum
Richard, Hence my confusion about it working differently depending on which url you access it with. On Dec 6, 2010, at 11:40 , Richard Vézina wrote: By default http://YOURDOMAIN/AppName should redirect to http://YOURDOMAIN/AppName*/default/index* * * *Richard * On Mon, Dec 6, 2010 at 12:35 PM, Lorin Rivers lriv...@mosasaur.com wrote: We've encountered a bug where our app behaves differently if you access it via /AppName/ than it does if you access it via /AppName/default/index What would likely explain that and how should I go about ensuring identical behavior in either case? -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] List of fields, want to use in .select(myList)
I have a list of Field variables whichAttributes = [t.f1, t.f2, t.f3] and I want to use them in my .select, like so: records = dbset.select(whichAttributes,orderby=t.f4|t.f5) How do I unroll that list into the select? -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: List of fields, want to use in .select(myList)
SRSLY?!?! facepalm. On Dec 3, 2010, at 17:29 , mr.freeze wrote: records = dbset.select(*whichAttributes,orderby=t.f4|t.f5) * unpacks a list ** unpacks a dict On Dec 3, 5:16 pm, Lorin Rivers lriv...@mosasaur.com wrote: I have a list of Field variables whichAttributes = [t.f1, t.f2, t.f3] and I want to use them in my .select, like so: records = dbset.select(whichAttributes,orderby=t.f4|t.f5) How do I unroll that list into the select? -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] convert a string to a table or field?
I tried making a generic function that created a table variable by
concatenating strings.
myTable = tableBuilder('inverter',period=5)
def tableBuilder(element,period=0):
if element == 'inverter':
if period = 0:
return 'db4.' + 'arraydata_table'
elif period = 1:
return 'db4.array_mins'
else:
return 'db4.array_' + period + 'mins'
That results in a syntax error. Can I do this or do I have to consider every
elif? Like this:
elif element == 'arrays':
if period = 0:
return db4.arraydata_table
elif period = 1:
return db4.array_mins
elif period = 5:
return db4.array_5mins
--
Lorin Rivers
Mosasaur: Killer Technical Marketing http://www.mosasaur.com
mailto:lriv...@mosasaur.com
512/203.3198 (m)
[web2py] Tweaking JSON
I need to change the JSON output I get from this:
[{FreezeTime: 2010-11-08 21:00, Irrad_avg: 605.00}, {FreezeTime:
2010-11-08 21:01, Irrad_avg: 600.66}]
to something more like this:
[['2010-11-08 21:00',605.00], ['2010-11-08 21:01',600.66]]
At the moment I'm using the simplejson.dumps method as explained in The Book
http://web2py.com/book/default/chapter/09?search=json#simplejson.
What should I do?
--
Lorin Rivers
Mosasaur: Killer Technical Marketing http://www.mosasaur.com
mailto:lriv...@mosasaur.com
512/203.3198 (m)
[web2py] JSON into a html view
How do I insert the results of a function into an html view as JSON? Specifically I need a javascript variable in the view to include my JSON. -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] Scalability of web2py?
The project I'm working on has hired a consultant who is now recommending .Net in place of web2py or even rails. What's the 'largest' scale web2py is known to perform well on? -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: Scalability of web2py?
We're looking at utility scale deployments with thousands of nodes reporting data back to the server. That and the ability to compile .NET. On Nov 29, 2010, at 12:05 , mdipierro wrote: You achieve scalability by replicating the web server behind a load balancer. This is documented in the book, chapter 11, using HAProxy. All frameworks work the same way in this respect. web2py has no intrinsic limitations. The bottle neck is the database connection. All frameworks have the same problem. You can replicate the database too and web2py supports multiple database clients with Round-Robin. On a small VPS, web2py in average, should execute one page in 20ms. Depending on how many requests/second you need you can determine how many servers you need. web2py apps run on Google App Engine and that means arbitrary scalability as long as you can live with the constraints imposed by the Google datastore (these limitations will go away as soon as Google releases MySQL in the cloud, which they announced some time ago). Please ask the consultant: which .NET feature makes it scale any better than web2py or Rails? If he explains we can address it more specifically. Massimo On Nov 29, 11:56 am, Lorin Rivers lriv...@mosasaur.com wrote: The project I'm working on has hired a consultant who is now recommending .Net in place of web2py or even rails. What's the 'largest' scale web2py is known to perform well on? -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: Scalability of web2py?
Unfortunately, the killing argument is we know .NET will scale to thousands of nodes, blah, blah, blah. This from (a guy who's smart and I respect, honestly) who uses his brand-new top-of-the-line 17 MBP to run Windows VMs in Parallels. On Nov 29, 2010, at 12:20 , Julio Schwarzbeck wrote: And this without considering vendor lock-in. web2py can run on a variety of platforms such as windows, macs. Linux and others, same goes for the selection of the back-end database. Much more flexibility under web2py in my opinion and prototyping is much faster in python. On Nov 29, 10:05 am, mdipierro mdipie...@cs.depaul.edu wrote: You achieve scalability by replicating the web server behind a load balancer. This is documented in the book, chapter 11, using HAProxy. All frameworks work the same way in this respect. web2py has no intrinsic limitations. The bottle neck is the database connection. All frameworks have the same problem. You can replicate the database too and web2py supports multiple database clients with Round-Robin. On a small VPS, web2py in average, should execute one page in 20ms. Depending on how many requests/second you need you can determine how many servers you need. web2py apps run on Google App Engine and that means arbitrary scalability as long as you can live with the constraints imposed by the Google datastore (these limitations will go away as soon as Google releases MySQL in the cloud, which they announced some time ago). Please ask the consultant: which .NET feature makes it scale any better than web2py or Rails? If he explains we can address it more specifically. Massimo On Nov 29, 11:56 am, Lorin Rivers lriv...@mosasaur.com wrote: The project I'm working on has hired a consultant who is now recommending .Net in place of web2py or even rails. What's the 'largest' scale web2py is known to perform well on? -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: Scalability of web2py?
The good news is that the guy who hired ME picked web2py in the first place… On Nov 29, 2010, at 13:51 , mdipierro wrote: Some political considerations (which may be wrong and off topic and improper)... Here is a problem with external consultants. They make more per hours than the average employees. They get hired because of their specific expertise to tell you what the boss wants to say but he prefers somebody else to say (so he does not take the responsibility for saying it). You cannot win this argument on technical merits. I would dismiss this argument and point to Google as a scalability example and it is not written in .net. I would address the real concern... you push web2py therefore you are a single point of failure. If you leave who takes care of this software? Not a problem with .net, they can always hire a consultant. I would stress that using web2py is good for rapid prototyping and it will allow the company to have a test product much sooner than with .net and at much lower cost. Once the prototype is built you will be in a better situation to assess whether web2py or .net is the best tool for the job. If you start developing in .net you will have higher startup costs and limited flexibility to change the specs. web2py code is much more compact and readable than .net code and it will be easier to train other people to work with it and learn how it works than with .net. Tell them experts4solutions.com can sell them long term support contracts and code review. The scalability bottle neck is the database. Offer something to the consultant. .net uses mssql. If he claims mssql scales well for your case, web2py will use mssql. If mssql does not scale well with web2py you have other options and do not need to rewrite code. You can always reuse most of the design (html, js, css, images). Management costs. I am sure you can make the case it costs less to run linux vps than windows ones (although I have no experience with the latter). Massimo -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: Scalability of web2py?
The number of people that can write code better than I can is close to the number of people who CAN write code… On Nov 29, 2010, at 17:08 , Branko Vukelic wrote: We know .NET will scale to thousands of nodes IF you write the .NET code right. If you write crappy code (and that's inevitable if you don't like .NET or you don't know .NET), it will not only NOT run on thousands of nodes, but will probably crash all of them. Having said that... if they can help you write better code on .NET than you currently write in web2py, the above argument turns on you. On Mon, Nov 29, 2010 at 7:49 PM, Lorin Rivers lriv...@mosasaur.com wrote: Unfortunately, the killing argument is we know .NET will scale to thousands of nodes, blah, blah, blah. This from (a guy who's smart and I respect, honestly) who uses his brand-new top-of-the-line 17 MBP to run Windows VMs in Parallels. On Nov 29, 2010, at 12:20 , Julio Schwarzbeck wrote: And this without considering vendor lock-in. web2py can run on a variety of platforms such as windows, macs. Linux and others, same goes for the selection of the back-end database. Much more flexibility under web2py in my opinion and prototyping is much faster in python. On Nov 29, 10:05 am, mdipierro mdipie...@cs.depaul.edu wrote: You achieve scalability by replicating the web server behind a load balancer. This is documented in the book, chapter 11, using HAProxy. All frameworks work the same way in this respect. web2py has no intrinsic limitations. The bottle neck is the database connection. All frameworks have the same problem. You can replicate the database too and web2py supports multiple database clients with Round-Robin. On a small VPS, web2py in average, should execute one page in 20ms. Depending on how many requests/second you need you can determine how many servers you need. web2py apps run on Google App Engine and that means arbitrary scalability as long as you can live with the constraints imposed by the Google datastore (these limitations will go away as soon as Google releases MySQL in the cloud, which they announced some time ago). Please ask the consultant: which .NET feature makes it scale any better than web2py or Rails? If he explains we can address it more specifically. Massimo On Nov 29, 11:56 am, Lorin Rivers lriv...@mosasaur.com wrote: The project I'm working on has hired a consultant who is now recommending .Net in place of web2py or even rails. What's the 'largest' scale web2py is known to perform well on? -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Branko Vukelić bg.bra...@gmail.com stu...@brankovukelic.com Check out my blog: http://www.brankovukelic.com/ Check out my portfolio: http://www.flickr.com/photos/foxbunny/ Registered Linux user #438078 (http://counter.li.org/) I hang out on identi.ca: http://identi.ca/foxbunny Gimp Brushmakers Guild http://bit.ly/gbg-group -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Recipe about mixing web2py, pydev, GoogleCode and others
I'm all set up, but I can't debug in Eclipse. I put a breakpoint in my code and go to the page that should execute it and it doesn't break. Got any ideas? On Nov 17, 2010, at 20:17 , pierreth wrote: Hello, I just published a blog about mixing all this stuff in Eclipse for web2py development: # GC issue tracking with Mylyn; # GC versioning using Mercurial and the MercurialEclipse plug-in; # Pydev with code completion and code checking; # Aptana Studio plug-in for Eclipse for the edition of HTML and CSS files. http://pierreth.blogspot.com/2010/10/web2py-eclipse-pydev-recipe.html I hope you like. Comments are appreciated. -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] Debugging my app
Getting pretty sick of using 'print' to debug. I tried pydbgr, but that didn't seem to work (crashed python). What other tools should I look at that will let me step through my web2py code? -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: Debugging my app
So you just click (or whatever the gesture is) to the side of the line you want to break at and it just works? To start a session, you right-click on web2py and start a debug session? What platform are you on? On Nov 26, 2010, at 10:32 , mr.freeze wrote: I use PyDev and Eclipse. It works like a champ. I can set breakpoints, inspect variables, create expressions at runtime. Very handy, not to mention that the mercurial eclipse plugin makes it very easy to update. On Nov 26, 10:25 am, Lorin Rivers lriv...@mosasaur.com wrote: Getting pretty sick of using 'print' to debug. I tried pydbgr, but that didn't seem to work (crashed python). What other tools should I look at that will let me step through my web2py code? -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: Debugging my app
I have python run, my web2py app is running, I can load it in the web browser in eclipse, the breakpoints are showing in the list of breakpoints and in the editor, my print statements are showing in the console, but it's NOT breaking. Also, if I edit a file in an external editor, the changes don't appear in Eclipse. What's up with that? On Nov 26, 2010, at 10:45 , mr.freeze wrote: I use both Ubuntu 10.10 and Windows 7. The first time, you right click web2py.py in the file tree and choose Debug As / Python Run. If Python Run is not available, you need to verify your interpreter setup. On Nov 26, 10:37 am, Lorin Rivers lriv...@mosasaur.com wrote: So you just click (or whatever the gesture is) to the side of the line you want to break at and it just works? To start a session, you right-click on web2py and start a debug session? What platform are you on? On Nov 26, 2010, at 10:32 , mr.freeze wrote: I use PyDev and Eclipse. It works like a champ. I can set breakpoints, inspect variables, create expressions at runtime. Very handy, not to mention that the mercurial eclipse plugin makes it very easy to update. On Nov 26, 10:25 am, Lorin Rivers lriv...@mosasaur.com wrote: Getting pretty sick of using 'print' to debug. I tried pydbgr, but that didn't seem to work (crashed python). What other tools should I look at that will let me step through my web2py code? -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: Debugging my app
Thanks, I ended up rebuilding my web2py project and now it works. On Nov 26, 2010, at 11:13 , mr.freeze wrote: You have to right click on your project and choose Refresh to reflect external changes. Do you see a green dot next to your breakpoint? Double click in the gray border to the left of the code and it should show a green dot. On Nov 26, 11:09 am, Lorin Rivers lriv...@mosasaur.com wrote: I have python run, my web2py app is running, I can load it in the web browser in eclipse, the breakpoints are showing in the list of breakpoints and in the editor, my print statements are showing in the console, but it's NOT breaking. Also, if I edit a file in an external editor, the changes don't appear in Eclipse. What's up with that? On Nov 26, 2010, at 10:45 , mr.freeze wrote: I use both Ubuntu 10.10 and Windows 7. The first time, you right click web2py.py in the file tree and choose Debug As / Python Run. If Python Run is not available, you need to verify your interpreter setup. On Nov 26, 10:37 am, Lorin Rivers lriv...@mosasaur.com wrote: So you just click (or whatever the gesture is) to the side of the line you want to break at and it just works? To start a session, you right-click on web2py and start a debug session? What platform are you on? On Nov 26, 2010, at 10:32 , mr.freeze wrote: I use PyDev and Eclipse. It works like a champ. I can set breakpoints, inspect variables, create expressions at runtime. Very handy, not to mention that the mercurial eclipse plugin makes it very easy to update. On Nov 26, 10:25 am, Lorin Rivers lriv...@mosasaur.com wrote: Getting pretty sick of using 'print' to debug. I tried pydbgr, but that didn't seem to work (crashed python). What other tools should I look at that will let me step through my web2py code? -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Development Questions
On Nov 26, 2010, at 16:35 , Steve Shepherd wrote: IF someone could help with some examples of answers would be great. snip Someone less ignorant than I should answer that. 2. How do I trace through code. line by line and then inspect values in variables or objects This I just solved for myself. The short answer for #2 is Eclipse with PyDev Aptana. There are some good instructions here (plus a script that will do much of the setup): http://pierreth.blogspot.com/2010/10/web2py-eclipse-pydev-recipe.html It took me 2 tries to get it working, one of the options is to copy all the files from your project into your workspace, which caused me problems. That option is unclearly worded, so avoid all the copying option in the Eclipse UI. Hope that helps! If you are on the Mac I could probably provide some more tips. -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] 'this or that' request with a url
How can I perform an 'OR' request with a url? Or pass a list using a url? I have 'AND' figured out… -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] 'this or that' request with a url
Jonathan, Sweet! That set me on the right path! ../?foo=somethingbar=something_elseother=thisother=that gives me what I want, which is: request.var['foo']: something request.var['bar']: something_else request.var['bar']: [this, that] On Nov 23, 2010, at 9:34 , Jonathan Lundell wrote: On Nov 23, 2010, at 6:28 AM, Lorin Rivers wrote: How can I perform an 'OR' request with a url? Or pass a list using a url? I have 'AND' figured out… I'm not quite sure what you're asking here, but I'm guessing that you're interpreting the '' in a query string as 'and'. But it's not; it's just a separator, punctuation. What you want the handler to do with the arguments is a matter of convention and agreement. A somewhat limited way to do it would be to put your operator in args: http://domain.com/app/ctlr/fcn/or?item1item2item3 http://domain.com/app/ctlr/fcn/and?item1item2item3 http://domain.com/app/ctlr/fcn/list?item1item2item3 -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] How do I capture the IDs from an 'insert'
I have a set that represents the records within a minute time span, upon insert of the calculated summary into another table, I'd like to update the source set with the ID of the inserted record. How do I do that? -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: How do I capture the IDs from an 'insert'
Do I need to set up my model so that the source set will accept the id? I'm getting a KeyError on RollupID: myset.update(RollupID=db4.array_mins.insert(..) On Nov 22, 2010, at 10:18 , mdipierro wrote: id = db.table.insert() or form=SQLFORM(...) if form.accepts() id=form.vars.id On Nov 22, 10:12 am, Lorin Rivers lriv...@mosasaur.com wrote: I have a set that represents the records within a minute time span, upon insert of the calculated summary into another table, I'd like to update the source set with the ID of the inserted record. How do I do that? -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: How do I capture the IDs from an 'insert'
Both tables have an int field RollupID. The first table 'raw_data' is where I want to store the id of the insert into 'minute_table' (which will in turn store the id of the insert of the '5minute_table'). There's no reference set up in the model. On Nov 22, 2010, at 10:51 , mdipierro wrote: I do not underatnd the question. What is you current model? On Nov 22, 10:45 am, Lorin Rivers lriv...@mosasaur.com wrote: Do I need to set up my model so that the source set will accept the id? I'm getting a KeyError on RollupID: myset.update(RollupID=db4.array_mins.insert(..) On Nov 22, 2010, at 10:18 , mdipierro wrote: id = db.table.insert() or form=SQLFORM(...) if form.accepts() id=form.vars.id On Nov 22, 10:12 am, Lorin Rivers lriv...@mosasaur.com wrote: I have a set that represents the records within a minute time span, upon insert of the calculated summary into another table, I'd like to update the source set with the ID of the inserted record. How do I do that? -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] Creating vars in a URL
I've got the starttime and endtime portions figured out, how do I represent the
Strings portion in a url?
Storage {'EndTime': '2010-11-08 22:00:00', 'String': ['S1', 'S2'],
'StartTime': '2010-11-08 21:00:00', '_formname': 'no_table_create'}
Without the string bits, the url looks something like this:
http://localhost:8000/Debug/reports/export_array_records.csv/?starttime=%222010-11-08%2021:45:00%22endtime=%222010-11-08%2022:00:00%22
How should I construct a URL that includes the String bits?
--
Lorin Rivers
Mosasaur: Killer Technical Marketing http://www.mosasaur.com
mailto:lriv...@mosasaur.com
512/203.3198 (m)
Re: [web2py] Re: How do I capture the IDs from an 'insert' [solved]
I did have to create a variable to store the returned ID then update the set using the variable. In other words: myRollUpID = db.table.insert(..) mySet.update(RollUpID=myRollUpID) On Nov 22, 2010, at 10:51 , mdipierro wrote: I do not underatnd the question. What is you current model? On Nov 22, 10:45 am, Lorin Rivers lriv...@mosasaur.com wrote: Do I need to set up my model so that the source set will accept the id? I'm getting a KeyError on RollupID: myset.update(RollupID=db4.array_mins.insert(..) On Nov 22, 2010, at 10:18 , mdipierro wrote: id = db.table.insert() or form=SQLFORM(...) if form.accepts() id=form.vars.id On Nov 22, 10:12 am, Lorin Rivers lriv...@mosasaur.com wrote: I have a set that represents the records within a minute time span, upon insert of the calculated summary into another table, I'd like to update the source set with the ID of the inserted record. How do I do that? -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Creating vars in a URL
Phyko,
Can you provide a simple example?
On Nov 22, 2010, at 17:47 , Phyo Arkar wrote:
You better use JSON via Post , dont pass from URL.
On Tue, Nov 23, 2010 at 3:48 AM, Lorin Rivers lriv...@mosasaur.com wrote:
I've got the starttime and endtime portions figured out, how do I represent
the Strings portion in a url?
Storage {'EndTime': '2010-11-08 22:00:00', 'String': ['S1', 'S2'],
'StartTime': '2010-11-08 21:00:00', '_formname': 'no_table_create'}
Without the string bits, the url looks something like this:
http://localhost:8000/Debug/reports/export_array_records.csv/?starttime=%222010-11-08%2021:45:00%22endtime=%222010-11-08%2022:00:00%22
How should I construct a URL that includes the String bits?
--
Lorin Rivers
Mosasaur: Killer Technical Marketing http://www.mosasaur.com
mailto:lriv...@mosasaur.com
512/203.3198 (m)
--
Lorin Rivers
Mosasaur: Killer Technical Marketing http://www.mosasaur.com
mailto:lriv...@mosasaur.com
512/203.3198 (m)
[web2py] Model scope
For some reason, a model in default/db.py wasn't loading, but after I copied over to another file in the models directory, it worked fine. If I have a reports controller, a reports view, and a reports model, /reports/ is the only place that model will be available, right? A model in defaults SHOULD be available globally, correct? Also, what is the procedure for debugging a problem where a model won't load and the migrations don't take effect? Thanks! -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: DAL to Qurey Multiple defined IDs?
It is in the book: http://web2py.com/book/default/chapter/06#Logical-Operators On Nov 19, 2010, at 20:00 , Bruno Rocha wrote: Not mentioned in the book that you can get the NOT IN SQL expression my_list = [1,2,3,4] NOT IN LIST: db(~(db.product.id.belongs(my_list))).select() IN LIST: db(db.product.id.belongs(my_list)).select() 2010/11/19 Bruno Rocha rochacbr...@gmail.com http://web2py.com/book/default/chapter/06#belongs 2010/11/19 Phyo Arkar phyo.arkarl...@gmail.com GOT IT db.table.key.belongs I cant find it in web2py book is there is? On Sat, Nov 20, 2010 at 8:11 AM, Phyo Arkar phyo.arkarl...@gmail.comwrote: This can be done in Query easily as SELECT * FROM table WHERE table.id IN (1,2,4,5) Theres no DAL equvlient ? i have to execute SQL? On Sat, Nov 20, 2010 at 8:00 AM, Phyo Arkar phyo.arkarl...@gmail.comwrote: Eratta : to_get=[1,2,4,5] q= db.casedb.id in to_get # Guess this wont work? db(q).select(db.casedb.ALL) On Sat, Nov 20, 2010 at 7:54 AM, Phyo Arkar phyo.arkarl...@gmail.comwrote: to_get=[1,2,4,5] q= db.casedb.id in toget db(q).select(db.casedb.ALL) -- Bruno Rocha http://about.me/rochacbruno/bio -- Bruno Rocha http://about.me/rochacbruno/bio -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] edit the book, get a free book
You know, a comment feature would be really awesome for the online version of the book, like the PHP online docs have. One thing (as I mentioned earlier) that I think would be super helpful would be more examples of SQL translated to DAL. I know SQL pretty well and often test what I want to achieve in web2py with SQL. On Nov 18, 2010, at 20:32 , mdipierro wrote: If you have time to go over the last 1-2 months of emails and suggested book corrections and implement them in the book, I will send you a free printed version of the book. Please if you can do it, let us know in this thread to avoid duplication of work. The first responder gets the job. Massimo -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] Questions about sets
Are delete, update the only the only database modification methods in set? Can I do something like compute a value from information in a record in a set and update a field in that set with that info? For example, my records include a string field which stores a date string and I want to update a field with the datetime calculated from that string. Set operations are so fast and rows, not nearly as. It would be awesome if I could do some of this stuff in the set. Thanks! -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: Questions about sets
What about using a function? I need run db.table.field through split (the time part has too many decimal places) and then convert from string to time Here's what I tried: db4((db4.data_table.ReqTime =2010-11-08T22:09:00) (db4.data_table.ReqTime 2010-11-08T22:09:10) (db4.data_table.MacAddr == 00DF)).update(db4.data_table.FreezeTime=datetime.strptime(db4.data_table.ReqTime.split(.)[0], %Y-%m-%dT%H:%M:%S)) and got: AttributeError: 'Field' object has no attribute 'split' On Nov 20, 2010, at 11:40 , mdipierro wrote: something like this? db(query).update(field1=db.table.field2+db.table.field3) Massimo -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: Questions about sets
What do you mean? The field ReqTime is defined as a string:
db4.data_table[78978]
Row {'MacAddr': '00D1', 'update_record': function lambda at
0x101cc9a28, 'Vi': 34.88671875, 'StringID': 'S0003', 'Vstring': 24.0,
'Vo': 36.41015625, 'Ii': 1.61328125, 'Io': 1.4921875, 'RollupId': None, 'Po':
54.330780029296903, 'ResTime': '2010-11-08T22:09:00.382999897', 'Pi':
56.282089233398402, 'ReqTime': '2010-11-08T22:09:00.28292', 'id': 78978,
'delete_record': function lambda at 0x101cc9b90, 'FreezeTime': None}
type(row.ReqTime)
type 'str'
On Nov 20, 2010, at 13:36 , CesarBustios wrote:
Did you try converting the Field to string?
str(db4.data_table.ReqTime).split(.)[0]
Lorin Rivers ha escrito:
What about using a function? I need run db.table.field through split (the
time part has too many decimal places) and then convert from string to time
Here's what I tried:
db4((db4.data_table.ReqTime =2010-11-08T22:09:00)
(db4.data_table.ReqTime 2010-11-08T22:09:10) (db4.data_table.MacAddr
==
00DF)).update(db4.data_table.FreezeTime=datetime.strptime(db4.data_table.ReqTime.split(.)[0],
%Y-%m-%dT%H:%M:%S))
and got:
AttributeError: 'Field' object has no attribute 'split'
On Nov 20, 2010, at 11:40 , mdipierro wrote:
something like this?
db(query).update(field1=db.table.field2+db.table.field3)
Massimo
--
Lorin Rivers
Mosasaur: Killer Technical Marketing http://www.mosasaur.com
mailto:lriv...@mosasaur.com
512/203.3198 (m)
--
Lorin Rivers
Mosasaur: Killer Technical Marketing http://www.mosasaur.com
mailto:lriv...@mosasaur.com
512/203.3198 (m)
Re: [web2py] Re: Questions about sets
I figured out what i was doing wrong. I should have been updating the datetime field with a string. -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] Migrations questions (help!)
My database is PostgreSQL I have tables defined in my ../models/db.py Now I want to add some fields to one of the tables defined there. The table has data in it already. I tried modifying the original table definition but that didn't actually change the table's structure. Where should I make these changes? I have a model (rounding.py) that creates a new table in the database defined in db.py. That worked after some finagling (I think I had to drop the table and have the model recreate it, but it didn't have data yet). So what is the best method for making incremental changes to databases? I'm stuck and need some help. -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: Migrations questions (help!)
They are not set to false. I'm coming from a slight rails perspective (some experience with it). In rails, migrations are sequential. If you want to add a field to a table, you create a new migration that only does that. Regarding my question, then, do most people just edit the model (i.e., add a field, change a field's type, and so on)? On Nov 18, 2010, at 14:29 , VP wrote: Unless you have migration set to False, these things should be automatic. On Nov 18, 1:53 pm, Lorin Rivers lriv...@mosasaur.com wrote: My database is PostgreSQL I have tables defined in my ../models/db.py Now I want to add some fields to one of the tables defined there. The table has data in it already. I tried modifying the original table definition but that didn't actually change the table's structure. Where should I make these changes? I have a model (rounding.py) that creates a new table in the database defined in db.py. That worked after some finagling (I think I had to drop the table and have the model recreate it, but it didn't have data yet). So what is the best method for making incremental changes to databases? I'm stuck and need some help. -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: Migrations questions (help!)
I self-taught hacker (I would never describe myself as a programmer), I found rails to be less clear, it seem to be unnecessarily terse. I hate how ruby loops, I can never remember the syntax. I find that DHH's personality flavors the framework (in a bad way) as your personality flavors web2py in a positive way. It's hard to get used to blocks defined by indentation. I wish there were more examples of simple things like the one I mentioned previously. I find the migrations to not work that well and fail silently. Overall, I'm loving web2py and growing to appreciate Python. On Nov 18, 2010, at 15:12 , mdipierro wrote: As a rails user, would you share your experience with web2py so far? What you like, what you do not, what you think rails is better at? We'll defend ourselves but not take any offense. This can help us improve. Massimo On Nov 18, 2:47 pm, Lorin Rivers lriv...@mosasaur.com wrote: They are not set to false. I'm coming from a slight rails perspective (some experience with it). In rails, migrations are sequential. If you want to add a field to a table, you create a new migration that only does that. Regarding my question, then, do most people just edit the model (i.e., add a field, change a field's type, and so on)? On Nov 18, 2010, at 14:29 , VP wrote: Unless you have migration set to False, these things should be automatic. On Nov 18, 1:53 pm, Lorin Rivers lriv...@mosasaur.com wrote: My database is PostgreSQL I have tables defined in my ../models/db.py Now I want to add some fields to one of the tables defined there. The table has data in it already. I tried modifying the original table definition but that didn't actually change the table's structure. Where should I make these changes? I have a model (rounding.py) that creates a new table in the database defined in db.py. That worked after some finagling (I think I had to drop the table and have the model recreate it, but it didn't have data yet). So what is the best method for making incremental changes to databases? I'm stuck and need some help. -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m) -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] Easy to do using executesql, how to achieve with DAL?
executesql('select min(reqtime) from data_table;')
--
Lorin Rivers
Mosasaur: Killer Technical Marketing http://www.mosasaur.com
mailto:lriv...@mosasaur.com
512/203.3198 (m)
Re: [web2py] Re: Easy to do using executesql, how to achieve with DAL?
Massimo,
That pegs my CPU for a bit and then errors:
File
/Users/lrivers/Documents/CurrentProjects/SPTI/spowertech_webappserver1/gluon/sql.py,
line 734, in __getitem__
return dict.__getitem__(self, key)
KeyError: 'MIN(data_table.ReqTime)'
Here's my code:
m=db4.data_table.ReqTime.min()
firsttime = db4(db4.data_table).select().first()[m]
On Nov 17, 2010, at 13:30 , mdipierro wrote:
m=db.data_table.reqtime.min()
value = db(db.date_table).select().first()[m]
On Nov 17, 11:43 am, Lorin Rivers lriv...@mosasaur.com wrote:
executesql('select min(reqtime) from data_table;')
--
Lorin Rivers
Mosasaur: Killer Technical Marketing http://www.mosasaur.com
mailto:lriv...@mosasaur.com
512/203.3198 (m)
--
Lorin Rivers
Mosasaur: Killer Technical Marketing http://www.mosasaur.com
mailto:lriv...@mosasaur.com
512/203.3198 (m)
Re: [web2py] Re: Easy to do using executesql, how to achieve with DAL?
I think this would make a good thing to have in the examples. On Nov 17, 2010, at 13:45 , Massimo Di Pierro wrote: my mistake m=db4.data_table.ReqTime.min() firsttime = db4(db4.data_table).select(m).first()[m] On Nov 17, 2010, at 1:44 PM, Lorin Rivers wrote: m=db4.data_table.ReqTime.min() firsttime = db4(db4.data_table).select().first()[m] -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] ajax push
Thanks for mentioning this, looks interesting. On Nov 15, 2010, at 15:24 , Michele Comitini wrote: Does anyone use this with web2py? http://www.ape-project.org/ajax-push.html seems interesting! mic -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: Validate dynamically generated select SQLFORM.factory
Actually, that block prevents the query from running when the page loads.
On Nov 16, 2010, at 8:58 , Kostas M wrote:
It seems I don't understand what is the problem. Isn't the intended
action the form to have errors if nothing is selected?
This is checked with the: if form.accepts(request.vars, session): ...
My app throws an error if you click the submit button without selecting an
item from the list in the form.
I have tried adding 'zero=T('Choose one')', both with and without adding the
string 'Choose one' to the list 'options'. What would the best way to
validate this be?
--
Lorin Rivers
Mosasaur: Killer Technical Marketing http://www.mosasaur.com
mailto:lriv...@mosasaur.com
512/203.3198 (m)
[web2py] Passing values to another action/view
I have a form where the user builds a query and on submit, displays the results.
I wanted to also have a link on that page to export the results as CSV, but I
couldn't get the export action to use the values that the first action (display
the results) does. To get it to work, I ended up duplicating the view and the
action and changing it to save the csv file instead of displaying the results.
This seems like more work than should be necessary and is also not a good
coding practice.
How can I provide both pieces of functionality in one view?
controller:
def display_optimizer_form():
# Loops through the MAC Addresses and puts them in a list
options=[str(my_macaddr[i].MacAddr) for i in range(len(my_macaddr))]
#creates the form for choosing which Optimizers, from which time frame
form=SQLFORM.factory(Field('Optimizers',requires=IS_IN_SET(options,zero=T('Choose
one or
more'),multiple='multiple')),Field('StartTime',requires=[IS_NOT_EMPTY(),IS_DATETIME(format=T('%Y-%m-%dT%H:%M:%S'),
error_message=T('must be
-MM-DDTHH:MM:SS!'))]),Field('EndTime',requires=[IS_NOT_EMPTY(),IS_DATETIME(format=T('%Y-%m-%dT%H:%M:%S'),
error_message=T('must be -MM-DDTHH:MM:SS!'))]))
records=[]
if form.accepts(request):
dbset=db4((db4.data_table.ReqTime=form.vars.StartTime.strftime('%Y-%m-%dT%H:%M:%S'))(db4.data_table.ReqTime=form.vars.EndTime.strftime('%Y-%m-%dT%H:%M:%S')))
if form.vars.Optimizers:
query = reduce(lambda a,b:a|b,[db4.data_table.MacAddr==x for x in
form.vars.Optimizers])
dbset=dbset(query)
records =
dbset.select(db4.data_table.MacAddr,db4.data_table.ReqTime,db4.data_table.Po,
orderby=db4.data_table.MacAddr|db4.data_table.ReqTime)
# print records
return dict(form=form,records=records,results=SQLTABLE(records,
truncate=100,_class='results'),vars=form.vars,vars2=request.vars)
else: results=[]
return
dict(form=form,records=records,results=results,vars=form.vars,vars2=request.vars)
def export_optimizer_form():
import cStringIO
stream=cStringIO.StringIO()
# Loops through the MAC Addresses and puts them in a list
options=[str(my_macaddr[i].MacAddr) for i in range(len(my_macaddr))]
#creates the form for choosing which Optimizers, from which time frame
form=SQLFORM.factory(Field('Optimizers',requires=IS_IN_SET(options,zero=T('Choose
one or
more'),multiple='multiple')),Field('StartTime',requires=[IS_NOT_EMPTY(),IS_DATETIME(format=T('%Y-%m-%dT%H:%M:%S'),
error_message=T('must be
-MM-DDTHH:MM:SS!'))]),Field('EndTime',requires=[IS_NOT_EMPTY(),IS_DATETIME(format=T('%Y-%m-%dT%H:%M:%S'),
error_message=T('must be -MM-DDTHH:MM:SS!'))]))
records=[]
if form.accepts(request):
dbset=db4((db4.data_table.ReqTime=form.vars.StartTime.strftime('%Y-%m-%dT%H:%M:%S'))(db4.data_table.ReqTime=form.vars.EndTime.strftime('%Y-%m-%dT%H:%M:%S')))
if form.vars.Optimizers:
query = reduce(lambda a,b:a|b,[db4.data_table.MacAddr==x for x in
form.vars.Optimizers])
print query
print query
dbset=dbset(query)
records =
dbset.select(db4.data_table.MacAddr,db4.data_table.ReqTime,db4.data_table.Po,
orderby=db4.data_table.MacAddr|db4.data_table.ReqTime)
records.export_to_csv_file(stream)
response.headers['Content-Type']='application/vnd.ms-excel'
response.write(stream.getvalue(), escape=False)
return dict(form=form,records=records,results=SQLTABLE(records,
truncate=100,_class='results'),vars=form.vars,vars2=request.vars)
else: results=[]
return
dict(form=form,records=records,results=results,vars=form.vars,vars2=request.vars)
--
Lorin Rivers
Mosasaur: Killer Technical Marketing http://www.mosasaur.com
mailto:lriv...@mosasaur.com
512/203.3198 (m)
[web2py] How can get max min of a field in a rows object
I've got data with many, many rows, one record for each device that's being sampled every 6 seconds. I'm trying to roll up some of this data by getting the max, min, and average in a time span (for example, a minute). Is there a way to do that with the rows object? Or do I have to craft queries for each time span to get the max, min, and count? I tried using find on rows but couldn't get max to work with that. -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] Documentation/Examples Max
I was going crazy when I was trying to figure out my max() question because of the frequent use of the person's name Max in the documentation and examples. -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] Validate dynamically generated select SQLFORM.factory
Thanks for all the help so far. I have made tons of progress on my app, and now
I'm trying to add a little polish.
I have this code:
# Loops through the MAC Addresses and puts them in a list
# MAC Addresses is from a prior query
options=[str(my_macaddr[i].MacAddr) for i in range(len(my_macaddr))]
#creates the form for choosing which Optimizers, from which time frame
form=SQLFORM.factory(Field('Optimizers',requires=IS_IN_SET(options,multiple='multiple')))
My app throws an error if you click the submit button without selecting an item
from the list in the form.
I have tried adding 'zero=T('Choose one')', both with and without adding the
string 'Choose one' to the list 'options'. What would the best way to validate
this be?
--
Lorin Rivers
Mosasaur: Killer Technical Marketing http://www.mosasaur.com
mailto:lriv...@mosasaur.com
512/203.3198 (m)
Re: [web2py] Re: How do I construct my query to handle a multiple select?
Sorry I wasn't clear. I'm using a select multiple element in my form. When more than one (in my example, it's a MAC address) item is chosen, I need to return a result set for each choice and display them together. I could do it with a query like: choice 1 OR choice 2 or I could do it by combining the results of separate queries without the OR (there's also a date range but that's from a separate field and is hard-coded while I figure this other bit out). I'm having trouble constructing the code to handle the multiple selections. The form returns the request.vars just fine, so that part of my code is working. I think I need to loop through the request.vars in my controller to build my query or queries but I can't figure out how. I tried using a loop from i to len(request.vars) but that didn't work. On Nov 11, 2010, at 21:01, mdipierro mdipie...@cs.depaul.edu wrote: sorry I do not understand the question. On Nov 11, 6:12 pm, Lorin Rivers lriv...@mosasaur.com wrote: I have a form using this: options=[str(my_macaddr[i].MacAddr) for i in range(len(my_macaddr))] form=FORM(SELECT(*options,_name='MacAddrSelect',_multiple='multiple'),INPUT (_type='submit')) records = db4((db4.data_table.MacAddr==request.vars.MacAddrSelect) (db4.data_table.ReqTime='2010-11-08T21:00') (db4.data_table.ReqTime='2010-11-08T22:00')).select(db4.data_table.MacAddr,db4.data_table.ReqTime,db4.data_table.Po) How do I create a loop that will return records using more than one selection in my form? -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: How do I construct my query to handle a multiple select?
Massimo,
Thanks, that works great!
What do I do to get it to only run on submit instead of load?
BTW, one of the things that's most awesome about web2py is your activity on the
list and how helpful you are. I for one really appreciate that!
On Nov 12, 2010, at 10:12 , mdipierro wrote:
options=[str(my_macaddr[i].MacAddr) for i in range(len(my_macaddr))]
form=SQLFORM.factory(Field('macs',requires=IS_IN_SET(options,multiple='multiple')))
dbset=db4((db4.data_table.ReqTime='2010-11-08T21:00')(db4.data_table.ReqTime='2010-11-08T22:00'))
if form.accepts(request) and form.vars.macs:
query = reduce(lambda a,b:a|b,[db4.data_table.MacAddr==x for x in
form.vars.macs])
dbset=dbset(query)
records =
dbset.select(db4.data_table.MacAddr,db4.data_table.ReqTime,db4.data_table.Po)
--
Lorin Rivers
Mosasaur: Killer Technical Marketing http://www.mosasaur.com
mailto:lriv...@mosasaur.com
512/203.3198 (m)
[web2py] How do I construct my query to handle a multiple select?
I have a form using this: options=[str(my_macaddr[i].MacAddr) for i in range(len(my_macaddr))] form=FORM(SELECT(*options,_name='MacAddrSelect',_multiple='multiple'),INPUT (_type='submit')) records = db4((db4.data_table.MacAddr==request.vars.MacAddrSelect) (db4.data_table.ReqTime='2010-11-08T21:00') (db4.data_table.ReqTime='2010-11-08T22:00')).select(db4.data_table.MacAddr,db4.data_table.ReqTime,db4.data_table.Po) How do I create a loop that will return records using more than one selection in my form? -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
Re: [web2py] Re: Not getting a result from query
Alex, You put me on the right track! Thanks. -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] Using the results of a select/option in a query
OK, I answered my own question from before. I now have in my controller: my_macaddr = db4().select(db4.data_table.MacAddr, distinct=True) def display_form(): form = FORM(TR(Select a MAC Address :, SELECT(_name='MacAddrSelect', *[OPTION(my_macaddr[i].MacAddr, _value=str(my_macaddr[i].MacAddr)) for i in range(len(my_macaddr))])), TR(INPUT(_type='submit'))) return dict(form=form) Which gives me the form I want. How do I turn the result of the submit into a query? I want to generate something along the lines of this: db4((db4.data_table.MacAddr=='00AF') (db4.data_table.ReqTime='2010-11-08T21:00') (db4.data_table.ReqTime='2010-11-08T22:00')) Thanks! -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
[web2py] Not getting a result from query
I think I'm close:
given this controller
my_macaddr = db4().select(db4.data_table.MacAddr, distinct=True)
def display_form():
form = FORM(TR(Select a MAC Address :,
SELECT(_name='MacAddrSelect',
*[OPTION(my_macaddr[i].MacAddr, _value=str(my_macaddr[i].MacAddr)) for i in
range(len(my_macaddr))])),
TR(INPUT(_type='submit')))
records = db4((db4.data_table.MacAddr==form.vars.MacAddrSelect)
(db4.data_table.ReqTime='2010-11-08T21:00')
(db4.data_table.ReqTime='2010-11-08T22:00')).select(db4.data_table.MacAddr,db4.data_table.ReqTime,db4.data_table.Po)
return
dict(form=form,records=SQLTABLE(records),vars=form.vars,vars2=request.vars)
and this in my view:
{{extend 'layout.html'}}
h2Input form/h2
{{=form}}
h2Results/h2
p{{=records}}/p
h2Submitted variables/h2
{{=BEAUTIFY(request.vars)}}
h2Accepted variables/h2
{{=BEAUTIFY(form.vars)}}
h2Errors in form/h2
{{=BEAUTIFY(form.errors)}}
My form is displaying the request.vars and the three elements in the select(),
but no results.
What am I missing/doing wrong?
--
Lorin Rivers
Mosasaur: Killer Technical Marketing http://www.mosasaur.com
mailto:lriv...@mosasaur.com
512/203.3198 (m)
[web2py] Select/Option using a query distinct=True
Hi there, I'm new to Web2Py and Python as well and I'm having trouble creating a form that does a search using a select/option, itself built with a query. I can get the result I want from the web2py shell: for row in db4().select(db4.data_table.MacAddr, distinct=True): ... print row.MacAddr ... 00E0 00DF 00BB 00D1 00BD 00C0 00B1 00E5 00B3 00B4 00D2 00DA 00C1 00D8 00AF 00BE 00D9 00DC 00BA 00B5 00B9 but what I want is a popup in a form that will allow the user to choose which MacAddr to pull the data for (as well as a time span, the database contains data for each MacAddr every 6 seconds, the sample data set I have contains over 2.5M records). I did some googling and found this: http://wiki.web2py.com/Form_Select_Options_from_DB, but my version was giving me line continuation errors. I could use some hand-holding, can someone walk me through the parts (i.e., controller and view code to achieve this)? -- Lorin Rivers Mosasaur: Killer Technical Marketing http://www.mosasaur.com mailto:lriv...@mosasaur.com 512/203.3198 (m)
