from sqlalchemy import BigInteger, Column
from sqlalchemy.ext.declarative import as_declarative
from sqlatracker.field_tracker import FieldTracker
@as_declarative()
class Base:
id = Column(BigInteger, primary_key=True, autoincrement=True)
class Example(Base):
example_field_1 = Column(BigInteger)
example_field_2 = Column(BigInteger)
FieldTracker.listen_for(
Example.example_field_1,
Example.example_field_2,
)
from sqlatracker.field_tracker import FieldTracker
from sqlatracker.utils import merge_metadata
target_metadata = merge_metadata(your_metadata, FieldTracker.metadata)