Michael Bayer schrieb:
> robert rottermann wrote:
>> hi there,
>> how can an instance of a class with a Table bound to it
>> access the values of the values of "its" db record?
>>
>>
>> what I would like to do is something like the following:
>> class company(Base):
>> __table__ = 'tblCompany'
>> ...
>>
>> def listAssignedProducts(self):
>> print assigned products
>>
>>
>> class tblProducts_kl(Base2):
>> '''
>> User item kl class
>> '''
>> __tablename__ = 'tblProducts_kl'
>> companies = relation(
>> 'tblCompany',
>> secondary=tables2['tblProductsSupplier_kl'],
>> backref="related_klProducts",
>> )
>>
>> def assignMyselfToCompany(self, company_id):
>> # add my self to company
>> company = getCompanyByIs(company_id)
>>
>> now how do I proceed from here?
>>
>>
>
> why not use query() to find the company you're looking for ?
thanks
sorry that I was not clear enough.
I do get company easily (using a query)
but I want to know the id of the product from within
using the instance it is easy to get at the id like so:
product_id = tblProducts_kl().id
this product_id I would like to get from within a method of the tblProducts_kl
class definition of so I can tell a tblProducts_kl instance to associate itself
with a company. For this the method assignMyselfToCompany method needs to know
the product_id of the instance for which it is called.
I could do it like this
class tblProducts_kl(Base2):
...
def assignMyselfToCompany(self, product_id, company_id):
product = session.query(tblProducts_kl).\
filter(tblProducts_kl.__table__.c.id ==product_id).all()[0]
company = session.query(tblCompany).\
filter(tblCompany.__table__.c.id==company_id).all()[0]
company.related_klProducts.append(product)
product = tblProducts_kl()
product.assignMyselfToCompany(product.id, company_id)
however I would like to change the assignMyselfToCompany method in a way that I
could achieve the same with:
product = tblProducts_kl()
product.assignMyselfToCompany(company_id)
thanks again
robert
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