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CHANGELOG.md

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  • Introduce force: :cascade option for create_table. Using this option will recreate tables even if they have dependent objects (like foreign keys). db/schema.rb now uses force: :cascade. This makes it possible to reload the schema when foreign keys are in place.

    Matthew Draper, Yves Senn

  • db:schema:load and db:structure:load no longer purge the database before loading the schema. This is left for the user to do. db:test:prepare will still purge the database.

    Closes #17945.

    Yves Senn

  • Fix undesirable RangeError by Type::Integer. Add Type::UnsignedInteger.

    Ryuta Kamizono

  • Add foreign_type option to has_one and has_many association macros.

    This option enables to define the column name of associated object's type for polymorphic associations.

    Ulisses Almeida, Kassio Borges

  • Remove deprecated behavior allowing nested arrays to be passed as query values.

    Melanie Gilman

  • Deprecate passing a class as a value in a query. Users should pass strings instead.

    Melanie Gilman

  • add_timestamps and remove_timestamps now properly reversible with options.

    Noam Gagliardi-Rabinovich

  • ActiveRecord::ConnectionAdapters::ColumnDumper#column_spec and ActiveRecord::ConnectionAdapters::ColumnDumper#prepare_column_options no longer have a types argument. They should access connection#native_database_types directly.

    Yves Senn

Please check 4-2-stable for previous changes.