I'm using sqlalchemy 1.3.18. I'm trying to write an app that looks at data from an ORM declarative table without necessarily knowing the table definition.
What I am looking for is a way to get a single object (row in resultSet), having the name of column[1] is "lastname", and having "lastname" as a string in memory, how can I get the value of the "lastname" field from the row in resultSet? It's easy if I know in code that the row has a lastname property and I can use row.lastname but I want to do something like row["lastname"] or row.columns["lastname"] if there's a way. I'm using reflection to get the columns for the table. Here's some code I tried: class Users(Base): __tablename__ = 'users' userid = Column(String(80), primary_key=True) lastname = Column(String(40), nullable=False) firstname = Column(String(40), nullable=False) emailaddress = Column(String(80), nullable=False) def ReflectTableColumns(DbEngine, meta, targetTable): tableschema = Table(targetTable, meta, autoload=True, autoload_with=DbEngine) cols = dict() for c in tableschema.columns: print("{0}\t|\t{1}".format(c.name, c.type)) cols[c.name] = c.type return cols def GetUsers(): DBSession = sessionmaker(bind=Engine) session = DBSession() ShowTableData(session.query(Users).all(), 'users') def ShowTableData(resultSet, tablename): columns = ReflectTableColumns(Engine, Base.metadata, tablename) columnNames = list(columns.keys()) print (type(resultSet)) for row in resultSet: print (row.items[columnNames[1]]) print (row.columns[columnNames[1]]) print (row[columnNames[1]]) GetUsers() -- SQLAlchemy - The Python SQL Toolkit and Object Relational Mapper http://www.sqlalchemy.org/ To post example code, please provide an MCVE: Minimal, Complete, and Verifiable Example. See http://stackoverflow.com/help/mcve for a full description. --- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sqlalchemy/f11bf60e-e872-489e-9a9b-03998440bbb1n%40googlegroups.com.