On 05/15/2017 09:27 PM, Никита Крокош wrote:
So, how should i do if I need many encumbrances for every cadastral
object (flat.encumrances, building.encumbrances, ...etc).
If I get it correctly, I need something like:
class iCadastralObject(Base):
__abstract__ =True
def
So, how should i do if I need many encumbrances for every cadastral object
(flat.encumrances, building.encumbrances, ...etc).
If I get it correctly, I need something like:
class iCadastralObject(Base):
__abstract__ = True
def __init__(self, cadastral_region, cadastral_district,
when you use concrete inheritance, you now have three tables: building,
flat, construction. If you'd like these to each have a relationship to
iencumbrance, that's three separate foreign key constraints. Given the
four-column primary key, you'd need to have twelve columns total on
This is a duplicate from:
http://stackoverflow.com/questions/43972912/abstract-table-concrete-inheritance-could-not-determine-join-condition-between
I've got following example code:
models.py
class CadastralObject(Base):
__tablename__ = 'cadastral_object'
def __init__(self,
