Hello,
Can a query be written to return required columns along with some delimiter?
Example :
#User is a class, it has firstname, lastname, age, password
q = session.query(User.firstname,User.lastname,User.age,User.password).all()
#this would return [(fname,lname,22,pwd),]
How can I
Hello All,
I found this :
#s is a session object
#Director is a class
s.query(Director).filter(Director.name == 'Dir30').delete()
2009-06-01 16:17:00,750 INFO sqlalchemy.engine.base.Engine.0x...9a10 SELECT
director.id AS director_id
FROM director
WHERE director.name = ?
2009-06-01 16:17:00,796
group of deletes
The disadvantage of this approach is that you lose the ability to
rollback
the entire delete process, and now must handle that problem with
application
design.
--
Mike Conley
On Fri, May 29, 2009 at 4:08 AM, Harish Vishwanath
Hello,
I am running Sqlite/SQLA/Elixir on an embedded system. I have different
classes with OneToMany relationships and I have configured cascade = all,
delete, delete-orphan correctly on them. However, for this to work, I
should do something like :
parentlist = session.query(Parent).all()
for
for one or more then one query
params.
On May 26, 9:10 pm, Harish Vishwanath harish.shas...@gmail.com
wrote:
Hello,
Question 1:
When there is a query like below :
q = session.query(User.name) #(User is a class)
and when I do q.all(), a list of tuples (User.name,) is returned though
Hello,
Question 1:
When there is a query like below :
q = session.query(User.name) #(User is a class)
and when I do q.all(), a list of tuples (User.name,) is returned though a
single column is asked for. Is there a way to get a list directly from
q.all() when a single column is required?
Congratulations! And many thanks for the wonderful SQLA!
Cheers.
On Wed, Jan 7, 2009 at 1:12 AM, Michael Bayer mike...@zzzcomputing.comwrote:
Hello list -
I am pleased to announce the release of SQLAlchemy 0.5.0, the first
official release in the 0.5 series. This series has been in the
Hello,
I have a scenario like below :
- Session has weak_identity_map set to true. Therefore session is self
pruning.
- In some situations, the session might contain object references, which
have been deleted by other sessions from the database.
- In such cases, I want to remove the references of
Hello All,
I have a situation like this :
Thread T1, has session T1Session.
Thread T2, has session T2Session. They both bind to the same database.
Now, I have scenario like below :
u1 = User()
u2 = User()
u3 = User()#All these are Entity objects, , and are
primary
Hello,
I am using SQLA 0.5rc2 on Py 2.5.2 with Elixir 0.6. I have a multithreaded
application, and each thread gets a separate session object. All of them use
the same disk based database. I get the below exception :
Exception in thread RSIHostDBSync:
Traceback (most recent call last):
File
:47 PM, Harish Vishwanath wrote:
Hello,
Thanks for your reply. Please see the below implementation :
*Implementation 1:*
def my_con_func():
... print My Connection func
... import sqlite3.dbapi2 as sqlite
... con = sqlite.connect(:memory:)
... con.text_factory=str
:
pysqlite always returns Python unicode objects and this is outside of the
realm of SQLAlchemy. I'm not familiar with a pysqlite option to change
this but you should consult their site for any options related to it.
Harish Vishwanath wrote:
Hello All,
I am using Elixir 0.6.1 over SQLA 0.5rc2
Hello All,
I am using Elixir 0.6.1 over SQLA 0.5rc2. Consider the below :
from elixir import *
class A(Entity):
*... name = Field(String(40))*
...
class B(A):
*... address = Field(String(40))*
...
engine = sqlite:///c:\\temp\\2.sqlite
metadata.bind = engine
setup_all(True)
a =
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