Re: [web2py] Re: Combining rows
Great! Thanks Anthony Richard On Tue, Oct 22, 2013 at 9:24 PM, Anthony abasta...@gmail.com wrote: On Tuesday, October 22, 2013 3:48:26 PM UTC-4, Richard wrote: Ok, wasn't know if it was direct Python operator or web2py implementation, the documentation is not clear about that : http://web2py.com/books/**default/chapter/29/06/the-** database-abstraction-layer?**search=unionhttp://web2py.com/books/default/chapter/29/06/the-database-abstraction-layer?search=union The Rows class defines its own methods for the and | operators (via the __and__ and __or__ special methods). I just submitted a patch to fix the problem with the | operator (it returns a new Rows object, but it was also inadvertently mutating the existing Rows object). Anthony -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [web2py] Re: Combining rows
Hello, I try to do union as explain the book, but it keeps running and running... on row1|row2, I hava complexe query though with a lot of join and subrequest... When was this feature was available, I have web2py 2.4.7 Thanks Richard On Tue, Jun 11, 2013 at 7:13 AM, webpypy ad...@aqar-riyadh.com wrote: yes, I am sure it is working without as_dict(). Regards, Ashraf -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [web2py] Re: Combining rows
On Tuesday, October 22, 2013 11:28:07 AM UTC-4, Richard wrote: Hello, I try to do union as explain the book, but it keeps running and running... on row1|row2, I hava complexe query though with a lot of join and subrequest... It loops through row2 and checks whether each record already exists in row1, so if there are a lot of records in either and the records are complex, I suppose that could take a while. If you just do row1row2 instead, that will just combine the two sets of records without removing duplicates -- so if you don't need to worry about duplicates, that should be a lot faster. Anthony -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [web2py] Re: Combining rows
Yes sir!! I didn't think about it, I don't need to matter with duplicate, since each component of the union are mutually exclusive... At least it was working with or, but very long... Thanks Anthony!! Richard On Tue, Oct 22, 2013 at 11:45 AM, Anthony abasta...@gmail.com wrote: On Tuesday, October 22, 2013 11:28:07 AM UTC-4, Richard wrote: Hello, I try to do union as explain the book, but it keeps running and running... on row1|row2, I hava complexe query though with a lot of join and subrequest... It loops through row2 and checks whether each record already exists in row1, so if there are a lot of records in either and the records are complex, I suppose that could take a while. If you just do row1row2 instead, that will just combine the two sets of records without removing duplicates -- so if you don't need to worry about duplicates, that should be a lot faster. Anthony -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [web2py] Re: Combining rows
Hello Anthony, Not sure if it is an issue or web2py (or python) is intent to work like so... But let's say I have 2 rows sets : rows1 = query1 rows2 = query2 rows_combined = rows1 rows2 rows_combined and rows1 seems to be equal, I mean rows1 seems to be containing rows2, so I can't do rows1 rows3 and not having rows2 since they are already in rows1 case the preceding rows1 rows2... Thanks Richard On Tue, Oct 22, 2013 at 12:21 PM, Richard Vézina ml.richard.vez...@gmail.com wrote: Yes sir!! I didn't think about it, I don't need to matter with duplicate, since each component of the union are mutually exclusive... At least it was working with or, but very long... Thanks Anthony!! Richard On Tue, Oct 22, 2013 at 11:45 AM, Anthony abasta...@gmail.com wrote: On Tuesday, October 22, 2013 11:28:07 AM UTC-4, Richard wrote: Hello, I try to do union as explain the book, but it keeps running and running... on row1|row2, I hava complexe query though with a lot of join and subrequest... It loops through row2 and checks whether each record already exists in row1, so if there are a lot of records in either and the records are complex, I suppose that could take a while. If you just do row1row2 instead, that will just combine the two sets of records without removing duplicates -- so if you don't need to worry about duplicates, that should be a lot faster. Anthony -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [web2py] Re: Combining rows
Ok, actually, it the | that lead to the problem. len(rows1) 1 len(rows2) 3 rows3 = rows1rows2 len(row3) 4 len(rows1) 1 len(rows2) 3 But rows4 = rows1|rows2 len(rows4) 4 (in my use case) len(rows1) 4 len(rows2) 3 Richard On Tue, Oct 22, 2013 at 1:01 PM, Richard Vézina ml.richard.vez...@gmail.com wrote: Hello Anthony, Not sure if it is an issue or web2py (or python) is intent to work like so... But let's say I have 2 rows sets : rows1 = query1 rows2 = query2 rows_combined = rows1 rows2 rows_combined and rows1 seems to be equal, I mean rows1 seems to be containing rows2, so I can't do rows1 rows3 and not having rows2 since they are already in rows1 case the preceding rows1 rows2... Thanks Richard On Tue, Oct 22, 2013 at 12:21 PM, Richard Vézina ml.richard.vez...@gmail.com wrote: Yes sir!! I didn't think about it, I don't need to matter with duplicate, since each component of the union are mutually exclusive... At least it was working with or, but very long... Thanks Anthony!! Richard On Tue, Oct 22, 2013 at 11:45 AM, Anthony abasta...@gmail.com wrote: On Tuesday, October 22, 2013 11:28:07 AM UTC-4, Richard wrote: Hello, I try to do union as explain the book, but it keeps running and running... on row1|row2, I hava complexe query though with a lot of join and subrequest... It loops through row2 and checks whether each record already exists in row1, so if there are a lot of records in either and the records are complex, I suppose that could take a while. If you just do row1row2 instead, that will just combine the two sets of records without removing duplicates -- so if you don't need to worry about duplicates, that should be a lot faster. Anthony -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [web2py] Re: Combining rows
Looks like a bug in the | operator method -- I think I have a fix. Anthony On Tuesday, October 22, 2013 1:20:15 PM UTC-4, Richard wrote: Ok, actually, it the | that lead to the problem. len(rows1) 1 len(rows2) 3 rows3 = rows1rows2 len(row3) 4 len(rows1) 1 len(rows2) 3 But rows4 = rows1|rows2 len(rows4) 4 (in my use case) len(rows1) 4 len(rows2) 3 Richard On Tue, Oct 22, 2013 at 1:01 PM, Richard Vézina ml.richa...@gmail.comjavascript: wrote: Hello Anthony, Not sure if it is an issue or web2py (or python) is intent to work like so... But let's say I have 2 rows sets : rows1 = query1 rows2 = query2 rows_combined = rows1 rows2 rows_combined and rows1 seems to be equal, I mean rows1 seems to be containing rows2, so I can't do rows1 rows3 and not having rows2 since they are already in rows1 case the preceding rows1 rows2... Thanks Richard On Tue, Oct 22, 2013 at 12:21 PM, Richard Vézina ml.richa...@gmail.comjavascript: wrote: Yes sir!! I didn't think about it, I don't need to matter with duplicate, since each component of the union are mutually exclusive... At least it was working with or, but very long... Thanks Anthony!! Richard On Tue, Oct 22, 2013 at 11:45 AM, Anthony abas...@gmail.comjavascript: wrote: On Tuesday, October 22, 2013 11:28:07 AM UTC-4, Richard wrote: Hello, I try to do union as explain the book, but it keeps running and running... on row1|row2, I hava complexe query though with a lot of join and subrequest... It loops through row2 and checks whether each record already exists in row1, so if there are a lot of records in either and the records are complex, I suppose that could take a while. If you just do row1row2 instead, that will just combine the two sets of records without removing duplicates -- so if you don't need to worry about duplicates, that should be a lot faster. Anthony -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+un...@googlegroups.com javascript:. For more options, visit https://groups.google.com/groups/opt_out. -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [web2py] Re: Combining rows
Consider I have w2p 2.4.7 Richard On Tue, Oct 22, 2013 at 3:48 PM, Richard Vézina ml.richard.vez...@gmail.com wrote: Ok, wasn't know if it was direct Python operator or web2py implementation, the documentation is not clear about that : http://web2py.com/books/default/chapter/29/06/the-database-abstraction-layer?search=union It seems, it is a python operation Richard On Tue, Oct 22, 2013 at 3:07 PM, Anthony abasta...@gmail.com wrote: Looks like a bug in the | operator method -- I think I have a fix. Anthony On Tuesday, October 22, 2013 1:20:15 PM UTC-4, Richard wrote: Ok, actually, it the | that lead to the problem. len(rows1) 1 len(rows2) 3 rows3 = rows1rows2 len(row3) 4 len(rows1) 1 len(rows2) 3 But rows4 = rows1|rows2 len(rows4) 4 (in my use case) len(rows1) 4 len(rows2) 3 Richard On Tue, Oct 22, 2013 at 1:01 PM, Richard Vézina ml.richa...@gmail.comwrote: Hello Anthony, Not sure if it is an issue or web2py (or python) is intent to work like so... But let's say I have 2 rows sets : rows1 = query1 rows2 = query2 rows_combined = rows1 rows2 rows_combined and rows1 seems to be equal, I mean rows1 seems to be containing rows2, so I can't do rows1 rows3 and not having rows2 since they are already in rows1 case the preceding rows1 rows2... Thanks Richard On Tue, Oct 22, 2013 at 12:21 PM, Richard Vézina ml.richa...@gmail.com wrote: Yes sir!! I didn't think about it, I don't need to matter with duplicate, since each component of the union are mutually exclusive... At least it was working with or, but very long... Thanks Anthony!! Richard On Tue, Oct 22, 2013 at 11:45 AM, Anthony abas...@gmail.com wrote: On Tuesday, October 22, 2013 11:28:07 AM UTC-4, Richard wrote: Hello, I try to do union as explain the book, but it keeps running and running... on row1|row2, I hava complexe query though with a lot of join and subrequest... It loops through row2 and checks whether each record already exists in row1, so if there are a lot of records in either and the records are complex, I suppose that could take a while. If you just do row1row2 instead, that will just combine the two sets of records without removing duplicates -- so if you don't need to worry about duplicates, that should be a lot faster. Anthony -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/**web2py http://github.com/web2py/web2py(Source code) - https://code.google.com/p/**web2py/issues/listhttps://code.google.com/p/web2py/issues/list(Report Issues) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+un...@**googlegroups.com. For more options, visit https://groups.google.com/**groups/opt_outhttps://groups.google.com/groups/opt_out . -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [web2py] Re: Combining rows
Ok, wasn't know if it was direct Python operator or web2py implementation, the documentation is not clear about that : http://web2py.com/books/default/chapter/29/06/the-database-abstraction-layer?search=union It seems, it is a python operation Richard On Tue, Oct 22, 2013 at 3:07 PM, Anthony abasta...@gmail.com wrote: Looks like a bug in the | operator method -- I think I have a fix. Anthony On Tuesday, October 22, 2013 1:20:15 PM UTC-4, Richard wrote: Ok, actually, it the | that lead to the problem. len(rows1) 1 len(rows2) 3 rows3 = rows1rows2 len(row3) 4 len(rows1) 1 len(rows2) 3 But rows4 = rows1|rows2 len(rows4) 4 (in my use case) len(rows1) 4 len(rows2) 3 Richard On Tue, Oct 22, 2013 at 1:01 PM, Richard Vézina ml.richa...@gmail.comwrote: Hello Anthony, Not sure if it is an issue or web2py (or python) is intent to work like so... But let's say I have 2 rows sets : rows1 = query1 rows2 = query2 rows_combined = rows1 rows2 rows_combined and rows1 seems to be equal, I mean rows1 seems to be containing rows2, so I can't do rows1 rows3 and not having rows2 since they are already in rows1 case the preceding rows1 rows2... Thanks Richard On Tue, Oct 22, 2013 at 12:21 PM, Richard Vézina ml.richa...@gmail.comwrote: Yes sir!! I didn't think about it, I don't need to matter with duplicate, since each component of the union are mutually exclusive... At least it was working with or, but very long... Thanks Anthony!! Richard On Tue, Oct 22, 2013 at 11:45 AM, Anthony abas...@gmail.com wrote: On Tuesday, October 22, 2013 11:28:07 AM UTC-4, Richard wrote: Hello, I try to do union as explain the book, but it keeps running and running... on row1|row2, I hava complexe query though with a lot of join and subrequest... It loops through row2 and checks whether each record already exists in row1, so if there are a lot of records in either and the records are complex, I suppose that could take a while. If you just do row1row2 instead, that will just combine the two sets of records without removing duplicates -- so if you don't need to worry about duplicates, that should be a lot faster. Anthony -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/**web2py http://github.com/web2py/web2py(Source code) - https://code.google.com/p/**web2py/issues/listhttps://code.google.com/p/web2py/issues/list(Report Issues) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+un...@**googlegroups.com. For more options, visit https://groups.google.com/**groups/opt_outhttps://groups.google.com/groups/opt_out . -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out. -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [web2py] Re: Combining rows
On Tuesday, October 22, 2013 3:48:26 PM UTC-4, Richard wrote: Ok, wasn't know if it was direct Python operator or web2py implementation, the documentation is not clear about that : http://web2py.com/books/default/chapter/29/06/the-database-abstraction-layer?search=union The Rows class defines its own methods for the and | operators (via the __and__ and __or__ special methods). I just submitted a patch to fix the problem with the | operator (it returns a new Rows object, but it was also inadvertently mutating the existing Rows object). Anthony -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Re: Combining rows
yes, I am sure it is working without as_dict(). Regards, Ashraf -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Re: Combining rows
locs=[row for row in dept_locs if row.id in todept_locs.as_dict()] The . was missing. On Monday, 10 June 2013 00:21:43 UTC-5, webpypy wrote: locs=[row for row in dept_locs if row.id in todept_locs as_dict()] is invalid syntax. what is the problem? -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Re: Combining rows
Thank you, Massimo. the following works fine. locs=[row for row in dept_locs if row in todept_locs] is as_dict() not mandatory all the time? Please, explain. Regards, Ashraf -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Re: Combining rows
It should not work without .as_dict(). Are you sure it does? On Monday, 10 June 2013 10:53:07 UTC-5, webpypy wrote: Thank you, Massimo. the following works fine. locs=[row for row in dept_locs if row in todept_locs] is as_dict() not mandatory all the time? Please, explain. Regards, Ashraf -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Re: Combining rows
You can do this: rows = [row for row in row1 if not row.id in row2.as_dict()] On Sunday, 9 June 2013 18:15:03 UTC-5, webpypy wrote: Hi, How an I do intersection? The manual says: Row objects can be combined at the Python level. Here we assume: print rows1person.name Max Tim print rows2person.name John Tim You can do a union of the records in two set of rows: rows3 = rows1 rows2 print rows3 name Max Tim John Tim You can do a union of the records removing duplicates: rows3 = rows1 | rows2 print rows3 name Max Tim John Regards, Ashraf -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Re: Combining rows
Hi Massimo, I think there is no 'not'. am I right? Regards, Ashraf -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[web2py] Re: Combining rows
locs=[row for row in dept_locs if row.id in todept_locs as_dict()] is invalid syntax. what is the problem? -- --- You received this message because you are subscribed to the Google Groups web2py-users group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
