Flexflow

ci Hex.pm Hex.pm Documentation Last Updated Lines of code

Usage

defmodule Review do
  @vsn "1.0.1"
  use Flexflow.Process

  defmodule Reviewing do
    use Flexflow.Event
  end

  defmodule Submit do
    use Flexflow.Gateway
  end

  ## Start event
  event {Start, :draft}
  ## End event, `async` mode means this gateway run's in a separated elixir process.
  event {End, :reviewed}, async: true
  event {End, :canceled}
  ## Intermediate event
  event :rejected
  ## Custom event
  event Reviewing

  ## Define a gateway
  ## `a ~> b` is a shortcut of `{a, b}`
  gateway :modify1, :draft ~> :draft
  gateway :cancel1, :draft ~> :canceled

  ## Custom gateway
  gateway Submit, :draft ~> Reviewing

  gateway :modify2, :rejected ~> :rejected
  gateway :cancel2, :rejected ~> :canceled

  ## With custom name
  gateway {Submit, :submit2}, :rejected ~> Reviewing

  gateway :reject, Reviewing ~> :rejected
  gateway :agree, Reviewing ~> :reviewed
end

Graphviz Dot

<summary><img src="https://g.gravizo.com/source/custom_mark?https%3A%2F%2Fraw.githubusercontent.com%2Fclszzyh%2Fflexflow%2Fmaster%2FREADME.md"></summary>```dot// custom_markdigraph review { size ="4,4"; draft [label="draft",shape=doublecircle,color=".7 .3 1.0"]; reviewed [label="reviewed",style=bold,shape=circle,color=red]; canceled [label="canceled",shape=circle,color=red]; rejected [label="rejected",shape=box]; reviewing [label="reviewing",shape=box]; draft -> draft [label="modify1"]; draft -> canceled [label="cancel1"]; draft -> reviewing [label="submit_draft"]; rejected -> rejected [label="modify2"]; rejected -> canceled [label="cancel2"]; rejected -> reviewing [label="submit2"]; reviewing -> rejected [label="reject"]; reviewing -> reviewed [label="agree"];}// custom_mark```