On Wednesday, 25 July 2012 23:52:18 UTC+1, Michael Bayer wrote:
>
>
> instantiate, as in, instance of the new class? "my_class" above is a
> regular Python class, just instantiate - myclass(x, y, z).
>
>
> What I'd like to end up with is programmatically created instances (
> myapp.models.lak) that I can use the same way as my "normally"
> instantiated classes.
>
>
> that's what type() gives you. Its the exact same thing as using "class
> Foo()".
>
>
Hmm. I'm explaining this badly.
from myapp import db
class Foo(db.Model):
__tablename__ = 'foo'
id = db.Column(db.Integer, primary_key=True)
othercol = db.Column(db.String(50), nullable=False, unique=True)
# I can import this, and immediately run a query like Foo.query.all()
# no manual instantiation required
def create_signlist(listname):
def __init__(self, reference=None):
self.reference = reference
d = dict(
__tablename__ = listname.lower(),
__table_args__ = {'mysql_engine': 'InnoDB'},
__mapper_args__ = {'always_refresh': True},
id = db.Column("id", db.Integer(), primary_key=True),
reference = db.Column(db.String(50), nullable=False, unique=True),
__init__ = __init__
)
cls = type(listname, (db.Model,), d)
return cls()
various = ['Abc', 'Def', 'Ghi']
for v in various:
v = create_signlist(v)
# what do I have to do now to end up with instances Abc, Def, Ghi that I
can query within my app in the same way as Foo?
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