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Changes

1.2.0-RC1

  • Update diode-react to scalajs-react 2.0.0-RC3. This change can break applications that use diode-react if they use older versions of scalajs-react.
  • This version removes the backwards compatibility with Scala 2.12 because of scalajs-react 2.

1.1.8

  • update build/dependencies to support SJS 1.0.0

1.1.7

  • Allow cross-building for any ScalaJS version - default is 1.0.0-RC2
  • The build uses the SCALAJS_VERSION environment variable to get the scala.js plugin version for the build
  • The diode-react sub-project is now only built for 0.6.x builds
  • Bump scala cross versions to 2.12.10 and 2.13.1
  • Adjust for change where higher kinds are directly supported in 2.13.1

1.1.6

  • Cross-Build for Scala 2.12.8 (all projects) and 2.13.0 (for 'core', 'devtools', and 'data' projects only)
  • Drops support for Scala 2.11.x because dependencies no longer support it.
  • Some small impl changes to support 2.13.0
  • Bump uTest and scala.js versions etc... to support 2.13.0
  • diode-react only compiles for 2.12 - we can change this after sjs-react itself supports 2.13

1.1.5

  • Upgrade to Scala 2.12.8 and Scala.js 0.6.27
  • Update diode-react to scalajs-react 1.4.2

1.1.4

  • Upgrade to Scala 2.12.6 and Scala.js 0.6.22
  • Update diode-react to scalajs-react 1.3.1
  • Allow to subscribe to a ZipModel

1.1.3

  • Upgrade to Scala 2.12.4 and Scala.js 0.6.19
  • Update diode-react to scalajs-react 1.1.0
  • Use the existing startTime in Pending and PendingStale PotState
  • Add a hook to log exceptions encountered while processing effects
  • Documentation fixes

1.1.2

  • Upgrade to Scala 2.11.11, 2.12.2 and Scala.js 0.6.15
  • Update diode-react to scalajs-react 1.0.0
  • Change license to Apache 2.0 (was MIT)

1.1.1

  • New zoomTo macro to simplify common zoomRW use-cases. For example what used to be
circuit.zoomRW(_.a)((m, v) ⇒ m.copy(a = v)).zoomRW(_.i)((m, v) ⇒ m.copy(i = v))

can now be expressed with

circuit.zoomTo(_.a.i)
  • Fixed RefTo to always use Action
  • Moved Diode under io.suzaku organization

1.1.0

  • Added dispatchCB and dispatchNow to ModelProxy to provide a more explicit way of dispatching in a Callback or directly
  • Added a Pot.fromOption convenience method (by @vpavkin)
  • Circuit subscribe now uses ModelRO[T] in its listener callback so that the listener does not need to care about the type of the model.
  • Moved many methods from ModelR into its super trait ModelRO
  • Support for Scala 2.12
  • Updated to Scala.js 0.6.13 (for Scala 2.12 support)

1.0.0

Action type safety

Major change in 1.0.0 was making dispatched actions type safe (fixing #11 in process). Action type safety is based on an implicit type class ActionType[A] that must be present in scope for any valid action. Easiest way to achieve this is to utilize the provided Action type as a base for all your actions. If this is not possible, for example you have no control over action classes, you need to provide an instance of ActionType.

For example if you had something like,

trait MyAction

case class Increase(amount: Int) extends MyAction

case class Decrease(amount: Int) extends MyAction

you can change it to either

trait MyAction extends diode.Action

case class Increase(amount: Int) extends MyAction

case class Decrease(amount: Int) extends MyAction

or

trait MyAction

object MyAction {
  implicit object MyActionType extends ActionType[MyAction]
}

case class Increase(amount: Int) extends MyAction

case class Decrease(amount: Int) extends MyAction

Both variations work, but it's recommended to use the Action type.

This change also reflects on how action batches and empty actions are expressed. What used to be a Seq[A] is now an ActionBatch and an empty action is indicated with NoAction instead of None. Both of these new types are subtypes of the new Action type.

Connecting React components

The ReactConnector was updated in two ways. The first change affects how you connect your component and requires changes in your code. The change was needed because the original approach caused a lot of needless unmounting and mounting of the component. In your code you must break the connect into two parts, where the first part is executed only once creating the connecting wrapper and in the second part the wrapper is used to connect your own component. For example

staticRoute(root, CustomerRoot) ~> render(connect(_.customerData)(proxy => Customers(proxy)))

should be changed to

val customerData = connect(_.customerData)
...
staticRoute(root, CustomerRoot) ~> render(customerData(proxy => Customers(proxy)))

If you need to specify the type for the wrapper, use ReactConnectProxy[A], for example val customerData: ReactConnectProxy[CustomerData] in the example above.

Another change was the addition of an optional key to the component created in connect (fixes #17).

Other changes

  • Support for silent model changes that do not trigger listeners through ModelUpdateSilent and ModelUpdateSilentEffect
  • Dispatcher supports nested dispatching and queues any dispatch requests received while dispatching a previous action
  • Fixed map, flatMap and flatten in Pot to return a correct type of Pot instead of Empty/Ready
  • Added ModelRO[S] trait (for "read-only") to abstract reader functionality that does not need to know about the base model type. Can be used to replace types of ModelR[_, S]
  • Updated to Scala.js 0.6.9

0.5.2

  • Fixed a bug in foldHandlers where model changes in earlier handles were not always taken into account
  • Fixed a bug in Circuit where subscribing to a listener while other listeners were being called resulted in that new subscription being ignored.

0.5.1

  • Changed Circuit actionHandler type to take current model as parameter to enable chaining of handlers
  • Added composeHandlers and foldHandlers to help building action handler hierarchies
  • combineHandlers is deprecated and replaced with composeHandlers
  • Exposed root model reader in the ModelR trait

0.5.0

  • Introduced FastEq typeclass to provide suitable equality checking in various cases using === and =!= operators.
  • PotCollection fetching is always asynchronous to prevent nasty corner cases
  • Circuit subscription requires a ModelR instead of a simple function
  • The model in Circuit is now private, override initialModel method to set the initial value
  • Updated to Scala.js 0.6.7
  • DevTools updated to scalajs-dom 0.9.0 (backwards incompatible change in accessing indexedDB)

0.4.0

  • Split Diode into diode-core and diode-data modules as the core functionality is quite stable but diode-data (Pot stuff) is still changing quite rapidly.
  • Added AsyncAction which is a more general base for PotAction.
  • Simplified Pot by moving everything RetryPolicy related into specific AsyncActionRetriable.

0.3.0

  • Added virtual collections (PotCollection) to support lazy loading of data.
  • Added RefTo for referencing data elsewhere in the model.
  • Added map and flatMap to access model values inside containers (such as Option) while maintaining reference equality.
  • Added zip to combine two readers while maintaining reference equality.
  • Added an action processor for persisting application state.
  • Moved Pot and related classes from diode.util to diode.data package.

0.2.0

  • Upgraded Effects to be real class(es) instead of just type alias for easier composition etc.
  • Added animation example using requestAnimationFrame.
  • Added TodoMVC example using React.

0.1.0

  • Initial version.