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To help you debug your workflows, you can generate a visual representation of them as SVG or PNG images. First, install any of these free and open source applications needed to generate the images:
If you are defining the workflow inside a Symfony application, run this command to dump it as an image:
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# using Graphviz's 'dot' and SVG images $ php bin/console workflow:dump workflow-name | dot -Tsvg -o graph.svg # using Graphviz's 'dot' and PNG images $ php bin/console workflow:dump workflow-name | dot -Tpng -o graph.png # using PlantUML's 'plantuml.jar' $ php bin/console workflow:dump workflow_name --dump-format=puml | java -jar plantuml.jar -p > graph.png # highlight 'place1' and 'place2' in the dumped workflow $ php bin/console workflow:dump workflow-name place1 place2 | dot -Tsvg -o graph.svg
The DOT image will look like this:
The PlantUML image will look like this:
If you are creating workflows outside of a Symfony application, use the
StateMachineGraphvizDumper class to create the DOT
PlantUmlDumper to create the PlantUML files:
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// Add this code to a PHP script; for example: dump-graph.php $dumper = new GraphvizDumper(); echo $dumper->dump($definition); # if you prefer PlantUML, use this code: # $dumper = new PlantUmlDumper(); # echo $dumper->dump($definition);
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# replace 'dump-graph.php' by the name of your PHP script $ php dump-graph.php | dot -Tsvg -o graph.svg $ php dump-graph.php | java -jar plantuml.jar -p > graph.png