On May 11, 2014, at 12:27 AM, Joseph Casale jcas...@gmail.com wrote:
What I wanted to know was if it was possible to construct either a table
definition
for TableB so that someone could simply pass in actual values of table_a.name
to meta columns in table_b. For example if #3 above is
Hey Michael,
I really appreciate all that, it was extremely informative. For the
academic sake I have this
extrapolated to include all the actual intermediate tables that TableB
would include.
For the academic sake, without the mixin and proxy, given a traditional
approach where TableA
is
On May 11, 2014, at 4:28 PM, Joseph Casale jcas...@gmail.com wrote:
Hey Michael,
I really appreciate all that, it was extremely informative. For the academic
sake I have this
extrapolated to include all the actual intermediate tables that TableB would
include.
For the academic sake,
I have about a dozen tables with an id PK column and a single column
with some unique string. I then have a single table that composes 13
rows with an id PK field and all FK refs to rows in the other 12 tables.
Bulk inserting data into the initial 12 tables is simple but I am not
certain
how to
On May 10, 2014, at 3:34 PM, Joseph Casale jcas...@gmail.com wrote:
I have about a dozen tables with an id PK column and a single column
with some unique string. I then have a single table that composes 13
rows with an id PK field and all FK refs to rows in the other 12 tables.
Bulk
Hey Michael,
Lets say I have a table TableA:
class TableA(Base):
__tablename__ = 'table_a'
id = Column(Integer, primary_key=True)
name = Column(String(collation='nocase'), unique=True, nullable=False)
Then TableB:
class TableB(Base):
__tablename__ = 'table_b'
id =
On May 10, 2014, at 11:58 PM, Joseph Casale jcas...@gmail.com wrote:
Hey Michael,
Lets say I have a table TableA:
class TableA(Base):
__tablename__ = 'table_a'
id = Column(Integer, primary_key=True)
name = Column(String(collation='nocase'), unique=True, nullable=False)
I don’t understand. Do you mean at the configuration level? e.g.:
class TableB(Base):
# …
name = relationship(TableA) # “name_id” is auto created?
Right,
So when a person is adding rows to TableB, they have a few ways of doing it.
1. If they know or lookup the actual PK
1. is Winracku.combrack intended to be many-to-one or one-to-many ?
2. Given w1, w2:
w1 = Winracku()
w2 = Winracku()
w1.combrack = w2
which one are you deleting first, and what is the desired behavior as a result?
On Apr 9, 2013, at 8:29 AM, Werner werner.bru...@sfr.fr wrote:
On
On 09/04/2013 14:29, Werner wrote:
...
Wineracku.combrack = sao.relationship('Wineracku',
remote_side=[Wineracku.id],
cascade=all, delete,
delete-orphan,
single_parent=True)
Wineracku.combrack =
Hi Michael,
Didn't see this one before my last post.
On 09/04/2013 16:19, Michael Bayer wrote:
1. is Winracku.combrack intended to be many-to-one or one-to-many ?
One to many, in other words just to make sure that I don't mess up
terminology, w1 can have many children but the children only
On Apr 9, 2013, at 10:27 AM, Werner werner.bru...@sfr.fr wrote:
Hi Michael,
Didn't see this one before my last post.
On 09/04/2013 16:19, Michael Bayer wrote:
1. is Winracku.combrack intended to be many-to-one or one-to-many ?
One to many, in other words just to make sure that I don't
Hi,
I have an ORM class:
class Wineracku(DeclarativeBase, mix.StandardColumnMixin):
__tablename__ = u'wineracku'
description = sa.Column(sa.Unicode(length=30))
shortdesc = sa.Column(sa.Unicode(length=10))
# only used with single bottle type units
maxcol =
Hi,
Found it in the doc, the Adjacency List Relationship is what I wanted.
http://docs.sqlalchemy.org/en/latest/orm/relationships.html#adjacency-list-relationships
Werner
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