reflex-dev/reflex reflex-base-v0.11.0a2

reflex-base@0.11.0a2

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Bug Fixes

• A column of a SQLAlchemy DeclarativeBase model whose column type gives no useful Python type, such as JSON, JSONB or PickleType, now has the type of its Mapped[...] annotation when read through a state var, so data: Mapped[dict] = mapped_column(JSON) supports State.model.data["key"], and a Mapped[list[str]] JSON column supports rx.foreach and array operations, without .to(dict). An annotation that refines the column's Python type, such as Mapped[dict[str, int]] over dict, is used too; otherwise the column type still decides. (#7798)
• Operations on an optional list var (list[T] | None) holding None no longer crash the page or the production prerender: the list acts as an empty list, so contains is false, length is 0 and join gives an empty string. As with any empty list, reduce without an initial value still raises; pass initial= when the list can be None. (#7800)
• A computed var that returns an optional list, tuple, set or frozenset (for example -> set[str] | None) now reads as ArrayVar or SetVar for type checkers instead of ComputedVar, so its operations type-check. (#7800)
• Deprecation warnings now point at the app line that triggered them when the deprecated call runs inside a reflex_components_* package (for example on_change=client_state.set_value), instead of a file in site-packages. (#7811)

Performance

• The first event of a handler that takes a dict, dataclass, TypedDict or Pydantic model argument no longer imports SQLAlchemy on the event loop. (#7802)