namrata wrote: > I am creating an instance of a class. for example let the class be > Temp and the attributes of the class be first_name and last_name. > in order to access the attributes i will usually use the following > command: > a = Temp() > a.last_name = "*******" > > now, i am using sqlalchemy and mapping a table in postgresql to > python. i am trying to implement a method where i can pass the column > name and a value to the method. the method will fire a query for that > column name and value. the query is as follows: > query = session.query(Temp).query.filter(Temp.last_name == some_value) > > the column name passed to the method is stored in a local variable say > 'col_name' > how do i pass this local variable to the query. when i try the below > query it throws an error saying col_name is not an attirbute > query = session.query(Temp).query.filter(Temp.col_name == some_value)
I'd guess you can use getattr(): query = session.query(Temp).query.filter(getattr(Temp, col_name) == some_value) Peter -- http://mail.python.org/mailman/listinfo/python-list
