Hi,
I'm not sure this is supported or intended to work, but I'm trying to use a
value inside a JSONB field in a relationship.
class Department(DeclarativeBase):
__tablename__ = "department"
department_id = Column(Integer, autoincrement=True, primary_key=True)
class Project(DeclarativeBase):
__tablename__ = "project"
project_id = Column(Integer, autoincrement=True, primary_key=True)
meta = Column(MutableDict.as_mutable(JSONB), nullable=False, default={})
department = relation(
"Department",
viewonly=True,
primaryjoin="foreign(Department.department_id) ==
Project.meta['department_id'].astext.cast(Numeric)",
)
When I try to access project.department I get the following error:
ProgrammingError: (psycopg2.errors.AmbiguousFunction) operator is not
unique: unknown ->> unknown
LINE 3: ...vite": true, "send_project_record_invite": true}' ->> 'depar...
^
HINT: Could not choose a best candidate operator. You might need to add
explicit type casts.
Is there a way to do this wth relationship? Fair enough if not supported, I
can work around it with hybrid properties or column properties, was just
trying a different way.
Thanks for a great library,
João
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