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trait Nested extends AnyRef

Add nested molecule.

Related data of cardinality-many referenced entities can be queried in a "flat" way:

m(Order.no.LineItem.product.price.quantity).get === List(
  (23, "Chocolate", 48.00, 1),
  (23, "Whisky", 38.00, 2)
)

For convenience, Molecule offers to automatically nest the same data so that redundancy is avoided and we can work straight on the hierarchical data:

m(Order.no * LineItem.product.price.quantity).get === List(
  (23, List(("Chocolate", 48.00, 1), ("Whisky", 38.00, 2)))
)

Nested molecules can nest up to 7 levels deep.

Internally, Molecule adds entity ids to each level in the query to be able to group data on each level by a unique entity id.

Source
Nested.scala
See also

Manual | Tests: nested, nested json, nested json types

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