Re: [sqlalchemy] Re: list filter
On Sat, Apr 24, 2010 at 12:54, Alexander Zhabotinskiy a.zhabotins...@gmail.com wrote: Another trouble (if it's possible) I need to get like + in_ filter. values = ['64', '55', '37'] filter(Some.value.like(%:64%)), but in loop like filter(Some.value.like(in_([(%: + x + %) for x in values])) As far as I know there's no way to do that other than by OR-ing the various LIKE clauses together? -- Rami Chowdhury Never assume malice when stupidity will suffice. -- Hanlon's Razor 408-597-7068 (US) / 07875-841-046 (UK) / 0189-245544 (BD) -- You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalch...@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.
[sqlalchemy] How do we retrieve the database dialect that a specific session is using?
Is there any way to retrieve the database dialect that a specific session is using? e.g. MySQL, PostGIS, etc. I am trying to modify Sanjiv Singh's GeoAlchemy extension so that a person can retrieve the appropriate database procedure for a given dialect, so that geospatial queries can be both direct (performed in a single database call) as well as dialect-neutral. For example, in PostGIS, getting the WKT of a geometry requires func.ST_AsText() session.query(func.ST_AsText(Road.geom)).first() However, in MySQL, the same procedure requires func.AsText() session.query(func.AsText(Road.geom)).first() I would like to be able to create a function called wkt() in both geoalchemy/mysql.py and geoalchemy/postgis.py that enables me to the following: session.query(session.dialect.wkt(Road.geom)).first() Thanks, Roy Hyunjin Han Modi Research Group Earth Institute at Columbia University http://modi.mech.columbia.edu -- You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalch...@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.
[sqlalchemy] Re: How do we retrieve the database dialect that a specific session is using?
On Apr 24, 10:00 am, Roy Hyunjin Han starsareblueandfara...@gmail.com wrote: Is there any way to retrieve the database dialect that a specific session is using? e.g. MySQL, PostGIS, etc. I am trying to modify Sanjiv Singh's GeoAlchemy extension so that a person can retrieve the appropriate database procedure for a given dialect, so that geospatial queries can be both direct (performed in a single database call) as well as dialect-neutral. For example, in PostGIS, getting the WKT of a geometry requires func.ST_AsText() session.query(func.ST_AsText(Road.geom)).first() However, in MySQL, the same procedure requires func.AsText() session.query(func.AsText(Road.geom)).first() I would like to be able to create a function called wkt() in both geoalchemy/mysql.py and geoalchemy/postgis.py that enables me to the following: session.query(session.dialect.wkt(Road.geom)).first() Aha found it. Never mind. session.connection().dialect -- You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalch...@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.
[sqlalchemy] Using SQLAlchemy to call stored procedures
Hi everyone, I'm currently trying to convert an existing Zope web application over to Pylons. My DBA created a whole bunch of stored procedures for the web application that I would really love to use in my Pylons project. Some of the stored procedures takes a cursor as an argument. I'm not very DB savvy, so please forgive me if whatever I mentioned above doesn't sound right to you. My Question is: Supposing I have a stored procedure in my Oracle DB called retrieveList, how do I call that stored procedure to return me a result set in SQLAlchemy?? I know how to do it in the normal ORM way, like: session.query(Employee).filter(Employee.something == something).all() Could you please teach me what to import as well? What are the necessary modules required for calling stored procedures in SQLAlchemy? Thanks a million guys! -- You received this message because you are subscribed to the Google Groups sqlalchemy group. To post to this group, send email to sqlalch...@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.
