On 2 Nov., 19:09, Michael Bayer [EMAIL PROTECTED] wrote:
On Nov 2, 2007, at 1:15 PM, klaus wrote:
Thanks, but this doesn't seem to do what I wanted. The merge modifies
the object and therefore tries to update the underlying table on
session.flush(). So it might work if you prevented
Hi all,
i try to introspect a schema for an Oracle database on a site with multiple
users,
which have nearly identical schemas (common scenario on a development host).
E.g. in the database there are:
msc_ora1.sct0001_00
msc_ora2.sct0001_00
create by the two users msc_ora1 and msc_ora2.
Now
On Nov 5, 2007, at 6:44 AM, Michael Schlenker wrote:
I tried with:
meta.reflect(schema=msc_ora1)
but it raises the same exception. I have noticed the 'owner'
attribute on the Table class,
but how can i specify an owner for reflection as requested by the
Exception?
you'd have to
Michael Bayer schrieb:
On Nov 5, 2007, at 6:44 AM, Michael Schlenker wrote:
I tried with:
meta.reflect(schema=msc_ora1)
but it raises the same exception. I have noticed the 'owner'
attribute on the Table class,
but how can i specify an owner for reflection as requested by the
ah, excellent - patch looks pretty good, thanks.
On Nov 5, 2007, at 8:59 AM, Michael Schlenker wrote:
Michael Bayer schrieb:
On Nov 5, 2007, at 6:44 AM, Michael Schlenker wrote:
I tried with:
meta.reflect(schema=msc_ora1)
but it raises the same exception. I have noticed the 'owner'
i've got two mapped classes in a many 2 many relationship. i declare the
relationship on one class mapper with a backreference attribute specified.
i'm interested to know if i can find this backreference property from the
other class in the relationship which doesn't have the mapper property
all MapperProperty objects associated with a Mapper are expressed
through its get_property() and iterate_properties() accessors. as
this is the FAQ-of-the-week im going to remove properties from
Mapper and throw in a raise, stating this information.
On Nov 5, 2007, at 10:48 AM, Kapil
Hi,
I have 10 different instances the each have their own collation names
(latin1, greek, russian...) I have a master database that references
all thos instances + their collation names. I use this master database
to create the engines to the different dbs. I would like to be able to
just pass
Hello
Have a question related to mapped objects and reflecting tables.
If have this simple configuration:
messages = Table('messages', meta, autoload=True)
class Message(object):
pass
mapper(Message, messages)
Given a Message object, do I have a way to retrieve all the attributes
that
Hi,
Given a Message object, do I have a way to retrieve all the attributes
that result from the database mapping?
Try this:
for col in Message.c:
...
Paul
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Just noticed that from sqlalchemy import * imports all functions from
sqlalchemy.sql.expression, except column and table - is this by
intent or have these only be forgotten?
-- Chris
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Hi,
sorry, i havent been following. two++ dicts ?! this is getting out
of hand. if we have to have any dicts at all, it would be just one
dict. and also, it should be proxied through a property so that if
you dont access it, its never even created.
I have just put a proposed
Hi,
Just noticed that from sqlalchemy import * imports all functions from
sqlalchemy.sql.expression, except column and table - is this by
intent or have these only be forgotten?
It's to prevent confusion between column and Column - which are very
different!
Paul
Paul Johnston wrote:
I have just put a proposed patch on ticket #573. It uses info as the
name and puts it on SchemaItem. Due to the way constructors are arranged
for SchemaItem subclasses, I've explicitly put this in the constructor
for Table and Column.
Happy to take further comments
What's the simplest way to get the names of all columns containing
character data (VARCHAR or TEXT). I've got it down to this, which
works but is a bit obscure:
def get_text_fields(table):
substrings = [text, string, char]
ret = []
for c in table.columns:
name =
On Nov 5, 2007, at 4:11 PM, Mike Orr wrote:
What's the simplest way to get the names of all columns containing
character data (VARCHAR or TEXT). I've got it down to this, which
works but is a bit obscure:
def get_text_fields(table):
substrings = [text, string, char]
ret = []
On 11/5/07, Paul Johnston [EMAIL PROTECTED] wrote:
Hi,
Given a Message object, do I have a way to retrieve all the attributes
that result from the database mapping?
Try this:
for col in Message.c:
It works. thanks a lot Paul,
--
Eric
Seems that when multiple mapper extensions are used, only the first is run.
Testcase attached
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you need to return EXT_CONTINUE for your TimestampExtension methods.
On Nov 5, 2007, at 4:45 PM, Rick Morrison wrote:
from sqlalchemy import *
from sqlalchemy.orm import *
import datetime
import time
class TimestampExtension(MapperExtension):
def _decorate_instance(self, instance):
Ah. OK, thanks!
I checked in a small update to the 3.x - 4.0 migration guide in the docs to
note this.
On 11/5/07, Michael Bayer [EMAIL PROTECTED] wrote:
you need to return EXT_CONTINUE for your TimestampExtension methods.
Rick
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