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Commit7699ca2

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minor#8654 Updated the Workflow articles to Symfony 4 (javiereguiluz, weaverryan)
This PR was merged into the master branch.Discussion----------Updated the Workflow articles to Symfony 4The new file config paths are pending of this:symfony/recipes#256Commits-------70dda7c adding usef9bb412 minor tweaks8c540ce Removed an unneeded comment (Flex now includes Console by default)5088d0e Lots of fixes0261149 Fixed a typo9690dfd Updated the Workflow articles to Symfony 4
2 parents3bdb916 +70dda7c commit7699ca2

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‎workflow.rst‎

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@@ -41,10 +41,14 @@ By defining a workflow like this, there is an overview how the process looks lik
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logic is not mixed with the controllers, models or view. The order of the steps can be changed
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by changing the configuration only.
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Learn more
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----------
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..toctree::
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:maxdepth:1
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:glob:
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workflow/*
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workflow/usage
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workflow/state-machines
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workflow/dumping-workflows
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.. _Petri nets:https://en.wikipedia.org/wiki/Petri_net

‎workflow/dumping-workflows.rst‎

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How to Dump Workflows
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=====================
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To help you debug your workflows, you can dump a representation of your workflow with
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the use of a ``DumperInterface``. Use the ``GraphvizDumper`` to create a
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To help you debug your workflows, you can dump a representation of your workflow
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withthe use of a ``DumperInterface``. Use the ``GraphvizDumper`` to create a
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PNG image of the workflow defined above::
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// dump-graph.php
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..image::/_images/components/workflow/blogpost.png
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If you have configured your workflow with theSymfonyframework, youmay dump the dot file
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with the ``WorkflowDumpCommand``:
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Inside aSymfonyapplication, youcan dump the dot file with the
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``workflow:dump`` command:
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..code-block::terminal
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‎workflow/state-machines.rst‎

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@@ -28,7 +28,7 @@ Below is the configuration for the pull request state machine.
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..code-block::yaml
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#app/config/config.yml
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# config/packages/workflow.yaml
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framework:
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workflows:
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pull_request:
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..code-block::xml
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<!--app/config/config.xml-->
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<!-- config/packages/workflow.xml-->
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<?xml version="1.0" encoding="utf-8" ?>
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<containerxmlns="http://symfony.com/schema/dic/services"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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..code-block::php
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// app/config/config.php
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// # config/packages/workflow.php
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$container->loadFromExtension('framework', array(
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// ...
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'workflows' => array(
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),
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));
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You can now use this state machine by getting the ``state_machine.pull_request`` service::
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In a Symfony application using the
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:ref:`default services.yaml configuration<service-container-services-load-example>`,
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you can get this state machine by injecting the Workflow registry service::
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// ...
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use Symfony\Component\Workflow\Registry;
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class SomeService
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{
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private $workflows;
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public function __constructor(Registry $workflows)
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{
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$this->workflows = $workflows;
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}
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public function someMethod()
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{
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$stateMachine = $this->workflows->get('pull_request');
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// ...
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}
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$stateMachine = $this->container->get('state_machine.pull_request');
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// ...
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}
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.. _Petri net:https://en.wikipedia.org/wiki/Petri_net

‎workflow/usage.rst‎

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..index::
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single: Workflow; Usage
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How to Use the Workflow
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=======================
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How to Create and Use Workflows
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===============================
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Before creating your first workflow, execute this command to install the
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:doc:`Workflow component</components/workflow>` in your application:
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..code-block::terminal
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$ composer require workflow
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A workflow is a process or a lifecycle that your objects go through. Each
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step or stage in the process is called a *place*. You do also define *transitions*
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a ``Definition`` and a way to write the states to the objects (i.e. an
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instance of a:class:`Symfony\\Component\\Workflow\\MarkingStore\\MarkingStoreInterface`.)
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Consider the following example for a blog post. A postcan have places:
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'draft', 'review', 'rejected', 'published'. You can define the workflow
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Consider the following example for a blog post thatcan have these places:
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``draft``, ``review``, ``rejected``, ``published``. You can define the workflow
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like this:
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..configuration-block::
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..code-block::yaml
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#app/config/config.yml
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# config/packages/workflow.yaml
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framework:
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workflows:
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blog_publishing:
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..code-block::xml
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<!--app/config/config.xml-->
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<!-- config/packages/workflow.xml-->
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<?xml version="1.0" encoding="utf-8" ?>
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<containerxmlns="http://symfony.com/schema/dic/services"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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..code-block::php
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//app/config/config.php
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// config/packages/workflow.php
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$container->loadFromExtension('framework', array(
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// ...
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..tip::
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The ``type`` (default value ``single_state``) and ``arguments`` (default value ``marking``)
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attributes of the ``marking_store`` option are optional. If omitted, their default values
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will be used.
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The ``type`` (default value ``single_state``) and ``arguments`` (default
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value ``marking``)attributes of the ``marking_store`` option are optional.
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If omitted, their default valueswill be used.
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With this workflow named ``blog_publishing``, you can get help to decide
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what actions are allowed on a blog post::
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With this workflow named ``blog_publishing``, you can now decide what actions
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are allowed on a blog post. For example, inside a controller of an application
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using the:ref:`default services.yaml configuration<service-container-services-load-example>`,
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you can get the workflow by injecting the Workflow registry service::
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$post = new \App\Entity\BlogPost();
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// ...
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use Symfony\Component\Workflow\Registry;
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use App\Entity\BlogPost;
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use Symfony\Bundle\FrameworkBundle\Controller\Controller;
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use Symfony\Component\Workflow\Exception\LogicException;
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$workflow = $this->container->get('workflow.blog_publishing');
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$workflow->can($post, 'publish'); // False
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$workflow->can($post, 'to_review'); // True
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class BlogController extends Controller
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{
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public function edit(Registry $workflows)
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{
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$post = new BlogPost();
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$workflow = $workflows->get($post);
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// Update the currentState on the post
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try {
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$workflow->apply($post, 'to_review');
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} catch (LogicException $e) {
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// ...
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}
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// if there are multiple workflows for the same class,
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// pass the workflow name as the second argument
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// $workflow = $workflows->get($post, 'blog_publishing');
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// See all the available transition for the post in the current state
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$transitions = $workflow->getEnabledTransitions($post);
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$workflow->can($post, 'publish'); // False
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$workflow->can($post, 'to_review'); // True
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// Update the currentState on the post
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try {
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$workflow->apply($post, 'to_review');
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} catch (LogicException $e) {
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// ... if the transition is not allowed
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}
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// See all the available transitions for the post in the current state
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$transitions = $workflow->getEnabledTransitions($post);
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}
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}
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Using Events
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------------
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* ``workflow.[workflow name].announce``
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* ``workflow.[workflow name].announce.[transition name]``
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Here is an example how to enable logging for every time a the "blog_publishing" workflow leaves a place::
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Here is an example of how to enable logging for every time the ``blog_publishing``
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workflow leaves a place::
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use Psr\Log\LoggerInterface;
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use Symfony\Component\EventDispatcher\EventSubscriberInterface;

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