GRDB 7: coding strategies depend on the column

[groue]

In GRDB 6, Codable record types can specify how Data, Date, and UUID properties are stored in the database:

// GRDB 6
struct Player {
    static let databaseDataDecodingStrategy = ...
    static let databaseDateDecodingStrategy = ...
    static let databaseDataEncodingStrategy = ...
    static let databaseDateEncodingStrategy = ...
    static let databaseUUIDEncodingStrategy = ...
}

These properties have been removed in GRDB 7. You must now define methods that accept a column argument:

// GRDB 7
struct Player {
    static func databaseDataDecodingStrategy(for column: String) -> DatabaseDataDecodingStrategy { ... }
    static func databaseDateDecodingStrategy(for column: String) -> DatabaseDateDecodingStrategy { ...}
    static func databaseDataEncodingStrategy(for column: String) -> DatabaseDataEncodingStrategy { ... }
    static func databaseDateEncodingStrategy(for column: String) -> DatabaseDateEncodingStrategy { ... }
    static func databaseUUIDEncodingStrategy(for column: String) -> DatabaseUUIDEncodingStrategy { ... }
}