Hi,
I am currently working on adding support for Oracle to GeoAlchemy and
Oracle has some methods [1] that (somehow) are only recognized when a
table alias is used. The function aliased [2] seemed to work
perfectly, but then I realized that the compiler extension for my
custom column is not
Hi
This is my class definition
class TaskCalendar(DeclarativeBase):
__tablename__ = 'task_calendars1'
cal_id = Column(Integer,Sequence('id_seq'), primary_key=True)
task_id = Column(Integer, ForeignKey('tasks.task_id'))
dow = Column(Integer)
month = Column(Integer)
day =
Hi!
Using cx_oracle and SQLAlchemy 0.6 I am having troubles with Oracle
objects (cx_Oracle.OBJECT) as function parameters. For example I have
a function that returns an object of type cx_Oracle.OBJECT, and now I
want to use that object as argument for a new function call:
obj =
Hi,
Using plain Declarative, I am able to redefine a primary key column
that has been autoloaded, so that I can link it to an oracle sequence
and give it a new name:
Id = Column('id', Integer, Sequence('table_sq'), primary_key=True)
However, if I then try to add some methods to the class using
creating an alias() or otherwise using the .c. collection of any selectable
that's derived from another selectable (as when you say
select([sometable]).c.somecolumn) means that the Column objects are actually
copies of the original column objects. This copying procedure is performed by
the first step here would be to create a cx_oracle -only application that
issues your query and gets the right result back.then we can make sure
sqlalchemy is passing that along in the same way. The error you are seeing
is generated by cx_oracle (SQLA just wraps the NotSupportedError).
the clue here is that you're needing to call useexisting. this means a
Table that is already reflected will be pulled from the metadata. By adding
your own id column, that blows away the id that was already reflected,
which is what the addresses primary key is pointing to:
pdb at line
Yeah, the docs are confusing on this one:
http://www.sqlalchemy.org/docs/reference/orm/sessions.html?highlight=sessionmaker#sqlalchemy.orm.scoped_session
Parameters: * session_factory – a callable function that produces
Session instances, such as sessionmaker() or create_session().
Also I took
See this script, running 0.6.0:
==
from sqlalchemy import *
from sqlalchemy.orm import *
engine = create_engine('oracle://user:passw...@localhost:1521/xe?
use_ansi=False',echo=True)
metadata = MetaData()
Session = sessionmaker(bind=engine)
session
This is not enough detail to provide any insight into your issue. We would
require the mapping for TaskCalendar, Tasks, as well as code which inserts the
offending data into the database and then issues your query, reproducing the
error you are getting.
On May 10, 2010, at 8:54 AM, dhanil
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