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diff --git a/content/go/workflow.md b/content/go/workflow.md new file mode 100644 index 0000000..220d14b --- /dev/null +++ b/content/go/workflow.md @@ -0,0 +1,52 @@ ++++ +title = "Workflow" +name = "workflow" +repository = "https://git.neonxp.ru/workflow.git" +description = "Простой конечный автомат для Go" +outputs = ["html", "go"] ++++ + +# Workflow for Go + +[![GoDoc](https://godoc.org/github.com/neonxp/workflow?status.svg)](https://godoc.org/github.com/neonxp/workflow) + +Simple state machine. Inspired by [Symfony Workflow](https://github.com/symfony/workflow). + +## Example usage + +```go +o := new(ObjectImplementedPlaceer) + +w := NewWorkflow("Start") +w.AddTransition("Start", "A") +w.AddTransition("Start", "B") +w.AddTransition("A", "C") +w.AddTransition("B", "D") +w.AddTransition( "C", "D") +w.AddTransition("C", "Finish") +w.AddTransition("D", "Finish") + +w.Can(o, "A") // == nil +w.Can(o, "C") // == ErrTransitionNotFound + +w.GetEnabledTransitions(o) // []Place{"A", "B"} +w.Apply(o, "A") // o now at "A" place +w.GetEnabledTransitions(o) // []Place{"C"} + +w.DumpToDot() // See above +``` + +## Dump result + +``` +digraph { + Start[color="blue"] + Start -> A[label="Start → A"]; + Start -> B[label="Start → B"]; + A -> C[label="A → C"]; + B -> D[label="B → D"]; + C -> D[label="C → D"]; + C -> Finish[label="C → Finish"]; + D -> Finish[label="D → Finish"]; +} +```
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