[sqlalchemy] Cannot acces renamed tables in Oracle
hi I'm on a project which uses sqlalchemy to access an Oracle instance. It *used* to work fine until one day we decided to rename some of the tables. Suprisingly, sqlalchemy wouldn't be able to query those renamed tables any more! The error I get is the cumbersome ORA-00942: table or view does not exist. However, when I copy/paste the debug SQL command produced in sqlalchemy log, it runs fine in Toad! :O Has anybody had a similar problem? Cheers --~--~-~--~~~---~--~~ 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: sqlalchemy 0.4.6 + python 2.3: many-to-many relation problem
no chance :( legacy third party C extension libraries :(
On Jun 23, 3:50 pm, Michael Bayer mike...@zzzcomputing.com wrote:
david.radkow...@googlemail.com wrote:
ha! got it! you were right, it's a vendor's python implementation
problem. the custom python runtime put an instrumentation layer on top
of other classes and that why it breaks :D
switched to the genuine python 2.3.5 and now it's fine :)
sowhy not switch to genuine python 2.6 ? :)
thanks for your input, as you pointed me in the right direction.
cheers Michael !
On Jun 22, 9:09 pm, Michael Bayer mike...@zzzcomputing.com wrote:
david.radkow...@googlemail.com wrote:
Hi
I'm a bit concerned why the same code works with SA 0.5. Actually when
there is no data in the relation, the query returns an empty list;
however, as soon as I put some data in, I got the error :O
I tried with 0.4.9dev...something as well, the same result though :/
Am missing the point here? Do all tables/mappers have to be defined in
the same context/module?
no. As I said, as far as what the stack trace indicates, you are doing
something with pickling, direct __dict__ access, or custom
instrumentation
mods that is not compatible with 0.4. It might be something else too,
but
none of the sample code you have provided provides any insight into what
might be causing the error. you would have to provide a succinct and
fully reproducing (read: we can run it here) test case in order to
provide
more clues.
Thanks
On Jun 22, 8:38 pm, Michael Bayer mike...@zzzcomputing.com wrote:
that error would have something to do with pickling, direct __dict__
access on instances, or playing around with instrumentation
extensions.
that's as much as can be said based on what you've given.
aside from whatever reasons for using Py2.3, why ever would you go
straight to 0.4.6 and not 0.4.8 ?
david.radkow...@googlemail.com wrote:
Hi
I've got a small problem with my python code proted from 0.5 (p2.5)
to
0.4.6 (p2.3).
When I try to load query objects from many-to-many relation (mapped
via secondary keyword) I get most weird error:
Traceback (most recent call last):
File string, line 86, in ?
File X, line 17, in call_from_unix
File X, line 12, in test
File
/usr/lib/python2.3/site-packages/SQLAlchemy-0.4.6-py2.3.egg/
sqlalchemy/orm/attributes.py, line 44, in __get__
return self.impl.get(instance._state)
File
/usr/lib/python2.3/site-packages/SQLAlchemy-0.4.6-py2.3.egg/
sqlalchemy/orm/attributes.py, line 281, in get
return self.set_committed_value(state, value)
File
/usr/lib/python2.3/site-packages/SQLAlchemy-0.4.6-py2.3.egg/
sqlalchemy/orm/attributes.py, line 635, in set_committed_value
collection.append_without_event(item)
File
/usr/lib/python2.3/site-packages/SQLAlchemy-0.4.6-py2.3.egg/
sqlalchemy/orm/collections.py, line 540, in append_without_event
getattr(self._data(), '_sa_appender')(item,
_sa_initiator=False)
AttributeError: 'InstrumentedList' object has no attribute
'_sa_appender'
Any idea what is going on? It doesn't happen with sa 0.5
Any help will be much appreciated
Cheers
The tables look like follows:
-
import sqlalchemy;
import sqlalchemy.orm;
import rfang.model.rfablcklstinstr;
import rfang.model.rfaruntime;
t_RfaEnvironment = None;
t_RfaEnvironment_RfaBlcklstInstr = None;
def initializeTable(metadata): #{{{
global t_RfaEnvironment;
global t_RfaEnvironment_RfaBlcklstInstr;
if(t_RfaEnvironment == None):
t_RfaEnvironment = sqlalchemy.Table(RuntimeConfigType,
metadata,
sqlalchemy.Column
(id,sqlalchemy.types.Integer,sqlalchemy.schema.Sequence
(id_RuntimeConfigType),primary_key=True),
sqlalchemy.Column(name,sqlalchemy.types.Unicode
(10),nullable=False,unique=True),
sqlalchemy.Column(filename,sqlalchemy.types.Unicode
(100),nullable=False),
sqlalchemy.Column(filtername,sqlalchemy.types.Unicode
(255),nullable=False),
useexisting=True
);
rfang.model.rfablcklstinstr.initializeTable(metadata);
t_RfaEnvironment_RfaBlcklstInstr = sqlalchemy.Table
(RuntimeConfigType_Blacklist, metadata,
sqlalchemy.Column
(runtimeConfigType_id,sqlalchemy.types.Integer,sqlalchemy.ForeignKey
('RuntimeConfigType.id')),
sqlalchemy.Column
(blacklist_id,sqlalchemy.types.Integer,sqlalchemy.ForeignKey
('Blacklist.id')),
useexisting=True
);
return;
#def }}}
def initializeMapper(): #{{{
global t_RfaEnvironment;
global
[sqlalchemy] sqlalchemy 0.4.6 + python 2.3: many-to-many relation problem
Hi
I've got a small problem with my python code proted from 0.5 (p2.5) to
0.4.6 (p2.3).
When I try to load query objects from many-to-many relation (mapped
via secondary keyword) I get most weird error:
Traceback (most recent call last):
File string, line 86, in ?
File X, line 17, in call_from_unix
File X, line 12, in test
File /usr/lib/python2.3/site-packages/SQLAlchemy-0.4.6-py2.3.egg/
sqlalchemy/orm/attributes.py, line 44, in __get__
return self.impl.get(instance._state)
File /usr/lib/python2.3/site-packages/SQLAlchemy-0.4.6-py2.3.egg/
sqlalchemy/orm/attributes.py, line 281, in get
return self.set_committed_value(state, value)
File /usr/lib/python2.3/site-packages/SQLAlchemy-0.4.6-py2.3.egg/
sqlalchemy/orm/attributes.py, line 635, in set_committed_value
collection.append_without_event(item)
File /usr/lib/python2.3/site-packages/SQLAlchemy-0.4.6-py2.3.egg/
sqlalchemy/orm/collections.py, line 540, in append_without_event
getattr(self._data(), '_sa_appender')(item, _sa_initiator=False)
AttributeError: 'InstrumentedList' object has no attribute
'_sa_appender'
Any idea what is going on? It doesn't happen with sa 0.5
Any help will be much appreciated
Cheers
The tables look like follows:
-
import sqlalchemy;
import sqlalchemy.orm;
import rfang.model.rfablcklstinstr;
import rfang.model.rfaruntime;
t_RfaEnvironment = None;
t_RfaEnvironment_RfaBlcklstInstr = None;
def initializeTable(metadata): #{{{
global t_RfaEnvironment;
global t_RfaEnvironment_RfaBlcklstInstr;
if(t_RfaEnvironment == None):
t_RfaEnvironment = sqlalchemy.Table(RuntimeConfigType,
metadata,
sqlalchemy.Column
(id,sqlalchemy.types.Integer,sqlalchemy.schema.Sequence
(id_RuntimeConfigType),primary_key=True),
sqlalchemy.Column(name,sqlalchemy.types.Unicode
(10),nullable=False,unique=True),
sqlalchemy.Column(filename,sqlalchemy.types.Unicode
(100),nullable=False),
sqlalchemy.Column(filtername,sqlalchemy.types.Unicode
(255),nullable=False),
useexisting=True
);
rfang.model.rfablcklstinstr.initializeTable(metadata);
t_RfaEnvironment_RfaBlcklstInstr = sqlalchemy.Table
(RuntimeConfigType_Blacklist, metadata,
sqlalchemy.Column
(runtimeConfigType_id,sqlalchemy.types.Integer,sqlalchemy.ForeignKey
('RuntimeConfigType.id')),
sqlalchemy.Column
(blacklist_id,sqlalchemy.types.Integer,sqlalchemy.ForeignKey
('Blacklist.id')),
useexisting=True
);
return;
#def }}}
def initializeMapper(): #{{{
global t_RfaEnvironment;
global t_RfaEnvironment_RfaBlcklstInstr;
sqlalchemy.orm.mapper( RfaEnvironment, t_RfaEnvironment,
properties = {
rfaruntimes : sqlalchemy.orm.relation
(rfang.model.rfaruntime.RfaRuntime,backref=rfaenvironment,cascade=all,delete,delete-
orphan),
rfablacklist : sqlalchemy.orm.relation
(rfang.model.rfablcklstinstr.RfaBlcklstInstr,secondary =
t_RfaEnvironment_RfaBlcklstInstr ,backref=rfaenvironments)
});
return;
#def }}}
class RfaEnvironment(object):
def __init__(self, name=None, filtername=None, filename=None,
rfaruntimes=[], rfablacklist=[]): #{{{2
self.name = name;
self.filename = filename;
self.filtername = filtername;
self.rfablacklist = rfablacklist;
self.rfaruntimes = rfaruntimes;
return;
#def }}}2
#class RuntimeConfigType
-
import sqlalchemy;
import sqlalchemy.orm;
import rfang.model.rfaenvironment;
import rfang.model.rfarun;
t_RfaSuite = None;
t_RfaSuite_RfaEnvironment = None;
def initializeTable(metadata): #{{{
global t_RfaSuite;
global t_RfaSuite_RfaEnvironment;
if(t_RfaSuite == None):
t_RfaSuite = sqlalchemy.Table(RfaSuite,metadata,
sqlalchemy.Column
(id,sqlalchemy.types.Integer,sqlalchemy.schema.Sequence
(id_RfaSuite),primary_key=True),
sqlalchemy.Column(name,sqlalchemy.types.Unicode
(50),nullable=False),
useexisting=True
);
rfang.model.rfaenvironment.initializeTable(metadata);
t_RfaSuite_RfaEnvironment = sqlalchemy.Table
(RfaSuite_RuntimeConfigType,metadata,
sqlalchemy.Column
(RfaSuite_id,sqlalchemy.types.Integer,sqlalchemy.ForeignKey
(RfaSuite.id)),
sqlalchemy.Column
(RuntimeConfigType_id,sqlalchemy.types.Integer,sqlalchemy.ForeignKey
(RuntimeConfigType.id)),
useexisting=True
);
return;
#def }}}
def initializeMapper(): #{{{
global t_RfaSuite;
global t_RfaSuite_RfaEnvironment;
sqlalchemy.orm.mapper(RfaSuite, t_RfaSuite, properties = {
rfaenvironments : sqlalchemy.orm.relation
(rfang.model.rfaenvironment.RfaEnvironment,secondary=t_RfaSuite_RfaEnvironment,
[sqlalchemy] Re: sqlalchemy 0.4.6 + python 2.3: many-to-many relation problem
Hi
I'm a bit concerned why the same code works with SA 0.5. Actually when
there is no data in the relation, the query returns an empty list;
however, as soon as I put some data in, I got the error :O
I tried with 0.4.9dev...something as well, the same result though :/
Am missing the point here? Do all tables/mappers have to be defined in
the same context/module?
Thanks
On Jun 22, 8:38 pm, Michael Bayer mike...@zzzcomputing.com wrote:
that error would have something to do with pickling, direct __dict__
access on instances, or playing around with instrumentation extensions.
that's as much as can be said based on what you've given.
aside from whatever reasons for using Py2.3, why ever would you go
straight to 0.4.6 and not 0.4.8 ?
david.radkow...@googlemail.com wrote:
Hi
I've got a small problem with my python code proted from 0.5 (p2.5) to
0.4.6 (p2.3).
When I try to load query objects from many-to-many relation (mapped
via secondary keyword) I get most weird error:
Traceback (most recent call last):
File string, line 86, in ?
File X, line 17, in call_from_unix
File X, line 12, in test
File /usr/lib/python2.3/site-packages/SQLAlchemy-0.4.6-py2.3.egg/
sqlalchemy/orm/attributes.py, line 44, in __get__
return self.impl.get(instance._state)
File /usr/lib/python2.3/site-packages/SQLAlchemy-0.4.6-py2.3.egg/
sqlalchemy/orm/attributes.py, line 281, in get
return self.set_committed_value(state, value)
File /usr/lib/python2.3/site-packages/SQLAlchemy-0.4.6-py2.3.egg/
sqlalchemy/orm/attributes.py, line 635, in set_committed_value
collection.append_without_event(item)
File /usr/lib/python2.3/site-packages/SQLAlchemy-0.4.6-py2.3.egg/
sqlalchemy/orm/collections.py, line 540, in append_without_event
getattr(self._data(), '_sa_appender')(item, _sa_initiator=False)
AttributeError: 'InstrumentedList' object has no attribute
'_sa_appender'
Any idea what is going on? It doesn't happen with sa 0.5
Any help will be much appreciated
Cheers
The tables look like follows:
-
import sqlalchemy;
import sqlalchemy.orm;
import rfang.model.rfablcklstinstr;
import rfang.model.rfaruntime;
t_RfaEnvironment = None;
t_RfaEnvironment_RfaBlcklstInstr = None;
def initializeTable(metadata): #{{{
global t_RfaEnvironment;
global t_RfaEnvironment_RfaBlcklstInstr;
if(t_RfaEnvironment == None):
t_RfaEnvironment = sqlalchemy.Table(RuntimeConfigType,
metadata,
sqlalchemy.Column
(id,sqlalchemy.types.Integer,sqlalchemy.schema.Sequence
(id_RuntimeConfigType),primary_key=True),
sqlalchemy.Column(name,sqlalchemy.types.Unicode
(10),nullable=False,unique=True),
sqlalchemy.Column(filename,sqlalchemy.types.Unicode
(100),nullable=False),
sqlalchemy.Column(filtername,sqlalchemy.types.Unicode
(255),nullable=False),
useexisting=True
);
rfang.model.rfablcklstinstr.initializeTable(metadata);
t_RfaEnvironment_RfaBlcklstInstr = sqlalchemy.Table
(RuntimeConfigType_Blacklist, metadata,
sqlalchemy.Column
(runtimeConfigType_id,sqlalchemy.types.Integer,sqlalchemy.ForeignKey
('RuntimeConfigType.id')),
sqlalchemy.Column
(blacklist_id,sqlalchemy.types.Integer,sqlalchemy.ForeignKey
('Blacklist.id')),
useexisting=True
);
return;
#def }}}
def initializeMapper(): #{{{
global t_RfaEnvironment;
global t_RfaEnvironment_RfaBlcklstInstr;
sqlalchemy.orm.mapper( RfaEnvironment, t_RfaEnvironment,
properties = {
rfaruntimes : sqlalchemy.orm.relation
(rfang.model.rfaruntime.RfaRuntime,backref=rfaenvironment,cascade=all,delete,delete-
orphan),
rfablacklist : sqlalchemy.orm.relation
(rfang.model.rfablcklstinstr.RfaBlcklstInstr,secondary =
t_RfaEnvironment_RfaBlcklstInstr ,backref=rfaenvironments)
});
return;
#def }}}
class RfaEnvironment(object):
def __init__(self, name=None, filtername=None, filename=None,
rfaruntimes=[], rfablacklist=[]): #{{{2
self.name = name;
self.filename = filename;
self.filtername = filtername;
self.rfablacklist = rfablacklist;
self.rfaruntimes = rfaruntimes;
return;
#def }}}2
#class RuntimeConfigType
-
import sqlalchemy;
import sqlalchemy.orm;
import rfang.model.rfaenvironment;
import rfang.model.rfarun;
t_RfaSuite = None;
t_RfaSuite_RfaEnvironment = None;
def initializeTable(metadata): #{{{
global t_RfaSuite;
global t_RfaSuite_RfaEnvironment;
if(t_RfaSuite == None):
t_RfaSuite = sqlalchemy.Table(RfaSuite,metadata
