08. db.relationship

ND004 C01 L07 08 Model RELATIONSHIPS B-T Todo Lists And Todo Items

Takeaways

  • SQLAlchemy configures the settings between model relationships once , and generates JOIN statements for us whenever we need them.
  • db.relationship is an interface offered in SQLAlchemy to provide and configure a mapped relationship between two models.
  • db.relationship is defined on the parent model, and it sets:
    • the name of its children (e.g. children ), for example parent1.children
    • the name of a parent on a child using the backref , for example child1.my_amazing_parent

Resources

Next Concept