I tried it but i still get the same error.
On Thu, Dec 22, 2011 at 2:31 PM, Robert Forkel <xrotw...@googlemail.com>wrote: > conditions = [db.User.id==id] > if user_name != ' ': > conditions.append(db.User.name == user_name) > elif age != ' ': > conditions.append(db.User.age == age) > elif place != ' ': > conditions.append(db.User.place == place) > > result = db.User.filter(and_(*conditions)).all() > > might do the trick (untested). > > On Thu, Dec 22, 2011 at 9:53 AM, Sana klh <sana.kl...@gmail.com> wrote: > > Hi Robert Forkel, > > > > You got it right i am trying to have a combination of expression > combined in > > and_. > > > > I need to add the attribute only when it is not equal to null.So i tried > to > > check if it is not null and then from the expression and pass it to > filter > > .But this does not work. > > > > I went through the document but unable to figure out how to do this > through > > sql. > > > > > > Thank you > > > > On Thu, Dec 22, 2011 at 12:11 PM, Robert Forkel <xrotw...@googlemail.com > > > > wrote: > >> > >> You may want to look at the tutorial [1]. In the code you pasted you > >> are assembling a string to pass to filter. While you can do that (but > >> then it should be proper sql not python!), what you want to do is > >> passing a python expression like db.User.age==age, or a combination of > >> expressions combined using and_, or_, etc. > >> > >> [1] > >> > http://www.sqlalchemy.org/docs/orm/tutorial.html#common-filter-operators > >> > >> On Thu, Dec 22, 2011 at 6:34 AM, Sana klh <sana.kl...@gmail.com> wrote: > >> > I am getting the following error > >> > > >> > ProgrammingError: (ProgrammingError) (1064, "You have an error in your > >> > SQL > >> > syntax; check the manual that corresponds to your MySQL server version > >> > for > >> > the right syntax to use near '== 1,db.User.age==23,d' at line 3") > >> > > >> > > >> > Is there any way by which i can generate dynamic query? > >> > > >> > Thank you > >> > Sana > >> > > >> > > >> > > >> > On Thu, Dec 22, 2011 at 4:40 AM, Jackson, Cameron > >> > <cameron.jack...@thalesgroup.com.au> wrote: > >> >> > >> >> You might get more help if you provide more details. What error are > you > >> >> getting? > >> >> > >> >> -----Original Message----- > >> >> From: sqlalchemy@googlegroups.com [mailto: > sqlalchemy@googlegroups.com] > >> >> On > >> >> Behalf Of Sana > >> >> Sent: Thursday, 22 December 2011 2:50 AM > >> >> To: sqlalchemy > >> >> Subject: [sqlalchemy] SqlAlchemy dynamic query generation > >> >> > >> >> Hi All, > >> >> > >> >> I am trying to do query based on the user input as follows > >> >> > >> >> condition = 'and_(db.User.id == id' > >> >> if user_name != ' ': > >> >> condition += ',db.User.name == user_name' > >> >> elif age != ' ': > >> >> condition += ',db.User.age == age' > >> >> elif place != ' ': > >> >> condition += ',db.User.place == place' > >> >> > >> >> where = condition+')' > >> >> > >> >> result = db.User.filter(where).all() > >> >> > >> >> > >> >> But Im getting error when i do this. > >> >> > >> >> Is there any way by which i can do this > >> >> > >> >> > >> >> Thank you > >> >> Sana > >> >> > >> >> -- > >> >> 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 > >> >> sqlalchemy+unsubscr...@googlegroups.com. > >> >> For more options, visit this group at > >> >> http://groups.google.com/group/sqlalchemy?hl=en. > >> >> > >> >> > >> >> > >> >> > >> >> > ------------------------------------------------------------------------- > >> >> DISCLAIMER: This e-mail transmission and any documents, files and > >> >> previous e-mail messages attached to it are private and confidential. > >> >> They may contain proprietary or copyright material or information > that > >> >> is subject to legal professional privilege. 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Thales Australia > >> >> does not warrant or represent that this e-mail or any documents, > files > >> >> and previous e-mail messages attached are error or virus free. > >> >> > >> >> > >> >> > ------------------------------------------------------------------------- > >> >> > >> >> -- > >> >> 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 > >> >> sqlalchemy+unsubscr...@googlegroups.com. > >> >> For more options, visit this group at > >> >> http://groups.google.com/group/sqlalchemy?hl=en. > >> >> > >> > > >> > -- > >> > 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 > >> > sqlalchemy+unsubscr...@googlegroups.com. > >> > For more options, visit this group at > >> > http://groups.google.com/group/sqlalchemy?hl=en. > >> > >> -- > >> 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 > >> sqlalchemy+unsubscr...@googlegroups.com. > >> For more options, visit this group at > >> http://groups.google.com/group/sqlalchemy?hl=en. > >> > > > > -- > > 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 > > sqlalchemy+unsubscr...@googlegroups.com. > > For more options, visit this group at > > http://groups.google.com/group/sqlalchemy?hl=en. > > -- > 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 > sqlalchemy+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/sqlalchemy?hl=en. > > -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. 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