[sqlalchemy] Re: IntegrityError during query?
Hi Michael, sorry about the lack of information; I wasn't clear on
what you were looking for.
The failing constraint is a customer one for email addresses:
CREATE DOMAIN base.email as TEXT CHECK
(VALUE ~ '[EMAIL PROTECTED](\\.[-\\w]+)*\\.\\w{2,4}$');
Thanks again!
Mark
On Oct 1, 5:46 pm, Michael Bayer [EMAIL PROTECTED] wrote:
On Oct 1, 2007, at 2:29 PM, [EMAIL PROTECTED] wrote:
Hi Michael,
I'm creating the session by:
Session = sessionmaker(bind = engine,
autoflush = True,
transactional = True)
session = Session()
and I'm not using any threading at all (therefore no thread-local
storage). The only thing between the commit and the next query is some
reporting of statistics (using sys.stdout).
I'm getting a constraint violation IntegrityError.
unique constraint ? PK constraint ? foreign key constraint ?are
you doing any explicit INSERT statements of your own independent of
the session ?
I cant diagnose the problem any further on this end without an
explicit example.
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[sqlalchemy] Re: IntegrityError during query?
On Oct 2, 2007, at 7:56 AM, [EMAIL PROTECTED] wrote:
Hi Michael, sorry about the lack of information; I wasn't clear on
what you were looking for.
The failing constraint is a customer one for email addresses:
CREATE DOMAIN base.email as TEXT CHECK
(VALUE ~ '[EMAIL PROTECTED](\\.[-\\w]+)*\\.\\w{2,4}$');
you'd have to ensure the text youre inserting meets that regular
expression.
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[sqlalchemy] Re: IntegrityError during query?
On Oct 2, 2007, at 7:56 AM, [EMAIL PROTECTED] wrote:
Hi Michael, sorry about the lack of information; I wasn't clear on
what you were looking for.
The failing constraint is a customer one for email addresses:
CREATE DOMAIN base.email as TEXT CHECK
(VALUE ~ '[EMAIL PROTECTED](\\.[-\\w]+)*\\.\\w{2,4}$');
oh. also, you should not save() the object which represents this
insert (or at least perform any additional queries) until its fields
are fully assembled. since you are using autoflush=True, the
contents of the session will be flushed automatically before every
query.
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[sqlalchemy] Re: IntegrityError during query?
Hi again, I really must be missing something fundamental here as I cannot seem to solve this problem: I have a loop that queries one table (without any contraints) and writes to a second table (with constraints). Here's what the loop looks like in pseudo-code: while True: 1) query old table and create a work list 2) while items are in the work list: 2.1) create a new object 2.2) save 3) commit I can wrap the save (2.2) and commit (3) in try/except blocks which solves the IntegrityError exceptions at that point. The problem is that I'm getting IntegrityError exceptions in the query section (1) what seem to be deferred INSERTS from the commit (3). How can I turn off the deferred inserts? Mark On Sep 25, 9:27 am, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Hi, I have a newbie question: I'm parsing a log file in order to record login-times but I'm getting an IntegrityError on an insert during a query. Does this make sense? Even though I'm going a commit at the botton of the loop should I expect the INSERT to actually happen during a subsequent query? Thanks, Mark --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
[sqlalchemy] Re: IntegrityError during query?
On Oct 1, 2007, at 11:02 AM, [EMAIL PROTECTED] wrote: Hi again, I really must be missing something fundamental here as I cannot seem to solve this problem: I have a loop that queries one table (without any contraints) and writes to a second table (with constraints). Here's what the loop looks like in pseudo-code: while True: 1) query old table and create a work list 2) while items are in the work list: 2.1) create a new object 2.2) save 3) commit I can wrap the save (2.2) and commit (3) in try/except blocks which solves the IntegrityError exceptions at that point. The problem is that I'm getting IntegrityError exceptions in the query section (1) what seem to be deferred INSERTS from the commit (3). How can I turn off the deferred inserts? some sample code would be helpful here in order to get some context as to what youre doing. if the problem is just that the INSERT's dont occur until you say session.commit(), you can issue session.flush () at any time which will flush all pending changes/new items to the database. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
[sqlalchemy] Re: IntegrityError during query?
Hi Michael, As I tried to show in the pseudo-code, the INSERTS look like they're happening during the query (in step 1), well after the save/commit. I even tried to add a flush and, when I turn on echo mode, I see inserts happening at the query step. Is this even possible? Mark On Oct 1, 11:49 am, Michael Bayer [EMAIL PROTECTED] wrote: On Oct 1, 2007, at 11:02 AM, [EMAIL PROTECTED] wrote: Hi again, I really must be missing something fundamental here as I cannot seem to solve this problem: I have a loop that queries one table (without any contraints) and writes to a second table (with constraints). Here's what the loop looks like in pseudo-code: while True: 1) query old table and create a work list 2) while items are in the work list: 2.1) create a new object 2.2) save 3) commit I can wrap the save (2.2) and commit (3) in try/except blocks which solves the IntegrityError exceptions at that point. The problem is that I'm getting IntegrityError exceptions in the query section (1) what seem to be deferred INSERTS from the commit (3). How can I turn off the deferred inserts? some sample code would be helpful here in order to get some context as to what youre doing. if the problem is just that the INSERT's dont occur until you say session.commit(), you can issue session.flush () at any time which will flush all pending changes/new items to the database. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
[sqlalchemy] Re: IntegrityError during query?
On Oct 1, 2007, at 12:12 PM, [EMAIL PROTECTED] wrote: Hi Michael, As I tried to show in the pseudo-code, the INSERTS look like they're happening during the query (in step 1), well after the save/commit. I even tried to add a flush and, when I turn on echo mode, I see inserts happening at the query step. Is this even possible? Mark OK by code example im looking for: - are you on version 0.3 or 0.4 ? - how are you creating your session ? - using multiple threads ? are you keeping each session local to a single thread ? - whats happening between steps 3 and 1 ? depending on how the session is set up, yes a flush() can be issued right before the query executes (i.e. autoflush). But, according to your workflow below, it should not; since you are calling a commit() at the end. - what kind of IntegrityError youre getting...duplicate row insert ? missing foreign key ? no primary key ? --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
[sqlalchemy] Re: IntegrityError during query?
Hi Michael, I'm creating the session by: Session = sessionmaker(bind = engine, autoflush = True, transactional = True) session = Session() and I'm not using any threading at all (therefore no thread-local storage). The only thing between the commit and the next query is some reporting of statistics (using sys.stdout). I'm getting a constraint violation IntegrityError. Thanks again for any help! Mark On Oct 1, 12:47 pm, Michael Bayer [EMAIL PROTECTED] wrote: On Oct 1, 2007, at 12:12 PM, [EMAIL PROTECTED] wrote: Hi Michael, As I tried to show in the pseudo-code, the INSERTS look like they're happening during the query (in step 1), well after the save/commit. I even tried to add a flush and, when I turn on echo mode, I see inserts happening at the query step. Is this even possible? Mark OK by code example im looking for: - are you on version 0.3 or 0.4 ? - how are you creating your session ? - using multiple threads ? are you keeping each session local to a single thread ? - whats happening between steps 3 and 1 ? depending on how the session is set up, yes a flush() can be issued right before the query executes (i.e. autoflush). But, according to your workflow below, it should not; since you are calling a commit() at the end. - what kind of IntegrityError youre getting...duplicate row insert ? missing foreign key ? no primary key ? --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
[sqlalchemy] Re: IntegrityError during query?
On Oct 1, 2007, at 2:29 PM, [EMAIL PROTECTED] wrote: Hi Michael, I'm creating the session by: Session = sessionmaker(bind = engine, autoflush = True, transactional = True) session = Session() and I'm not using any threading at all (therefore no thread-local storage). The only thing between the commit and the next query is some reporting of statistics (using sys.stdout). I'm getting a constraint violation IntegrityError. unique constraint ? PK constraint ? foreign key constraint ?are you doing any explicit INSERT statements of your own independent of the session ? I cant diagnose the problem any further on this end without an explicit example. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~--~~~~--~~--~--~---
