[sqlalchemy] Re: Query - column names
George Sakkis wrote: Is there a (public) API for getting the column names of a given Query instance and other similar introspection needs ? I didn't find anything related in the docs but after digging in the code I came up with col_names = [e._result_label for e in q._entities] but I'm not sure how stable and robust this is. George Query instances have a 'statement' property that returns the underlying SELECT object. You can then inspect it's 'columns' attribute: columns = list(query.statement.columns) for column in columns: print column.name Would that do what you want? Simon --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
[sqlalchemy] Re: Query - column names
Thanks, didn't know that, though in this case I want the keys in the same column order but keys() doesn't preserve it. George On Jun 3, 8:59 pm, Michael Bayer mike...@zzzcomputing.com wrote: each row has a keys() attribute if that helps... On Jun 3, 2009, at 8:49 PM, George Sakkis wrote: Is there a (public) API for getting the column names of a given Query instance and other similar introspection needs ? I didn't find anything related in the docs but after digging in the code I came up with col_names = [e._result_label for e in q._entities] but I'm not sure how stable and robust this is. George --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
[sqlalchemy] Re: Query - column names
On Jun 4, 5:09 am, King Simon-NFHD78 simon.k...@motorola.com wrote: George Sakkis wrote: Is there a (public) API for getting the column names of a given Query instance and other similar introspection needs ? I didn't find anything related in the docs but after digging in the code I came up with col_names = [e._result_label for e in q._entities] but I'm not sure how stable and robust this is. George Query instances have a 'statement' property that returns the underlying SELECT object. You can then inspect it's 'columns' attribute: columns = list(query.statement.columns) for column in columns: print column.name Would that do what you want? Awesome, that's much better; thanks! George --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
[sqlalchemy] Re: Query - column names
each row has a keys() attribute if that helps... On Jun 3, 2009, at 8:49 PM, George Sakkis wrote: Is there a (public) API for getting the column names of a given Query instance and other similar introspection needs ? I didn't find anything related in the docs but after digging in the code I came up with col_names = [e._result_label for e in q._entities] but I'm not sure how stable and robust this is. George --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
