07a2f6cef4
This PR was merged into the 4.1-dev branch.
Discussion
----------
[Workflow] Add a MetadataStore to fetch some metadata
| Q | A
| ------------- | ---
| Branch? | master
| Bug fix? | no
| New feature? | yes
| BC breaks? | yes (little)
| Deprecations? | yes
| Tests pass? | yes
| Fixed tickets | #23257
| License | MIT
| Doc PR | TODO
---
This is an attempt to fix #23257. I first started to implement
`Ẁorkflow::getMetadata()`, `Transition::getMetadata()` and
`Place::getMetadata()`. **BUT**, there are no `Place` class. For now it's just a
`string`. So dealing with BC is a nightmare.
So I tried to find another way to fix the issue. [This
comment](https://github.com/symfony/symfony/issues/23257#issuecomment-315551397)
summary well the two options. But this PR is (will be) a mix of theses 2
options.
First it will be possible to configure the workflow/metadata like this:
```yaml
blog_publishing:
supports:
- AppBundle\Entity\BlogPost
metada:
label: Blog publishing
description: Manages blog publishing
places:
draft:
metadata:
description: Blog has just been created
color: grey
review:
metadata:
description: Blog is waiting for review
color: blue
transitions:
to_review:
from: draft
to: review
metadata:
label: Submit for review
route: admin.blog.review
```
I think is very good for the DX. Simple to understand.
All metadata will live in a `MetadataStoreInterface`. If metadata are set via
the configuration (workflows.yaml), then we will use the
`InMemoryMetadataStore`.
Having a MetadataStoreInterface allow user to get dynamic value for a place /
transitions. It's really flexible. (But is it a valid use case ?)
Then, to retrieve these data, the end user will have to write this code:
```php
public function onReview(Event $event) {
$metadataStore = $event->getWorkflow()->getMetadataStore();
foreach ($event->getTransition()->getTos() as $place) {
$this->flashbag->add('info', $metadataStore->getPlaceMetadata($place)->get('description'));
}
}
```
Note: I might add some shortcut to the Event class
or in twig:
```jinja
{% for transition in workflow_transitions(post) %}
<a href="{{ workflow_metadata_transition(post, route) }}">
{{ workflow_metadata_transition(post, transition) }}
</a>
{% endfor %}
```
---
WDYT ?
Should I continue this way, or should I introduce a `Place` class (there will be
so many deprecation ...)
Commits
-------
|
||
|---|---|---|
| .. | ||
| DependencyInjection | ||
| Dumper | ||
| Event | ||
| EventListener | ||
| Exception | ||
| MarkingStore | ||
| Metadata | ||
| SupportStrategy | ||
| Tests | ||
| Validator | ||
| CHANGELOG.md | ||
| composer.json | ||
| Definition.php | ||
| DefinitionBuilder.php | ||
| LICENSE | ||
| Marking.php | ||
| phpunit.xml.dist | ||
| README.md | ||
| Registry.php | ||
| StateMachine.php | ||
| Transition.php | ||
| TransitionBlocker.php | ||
| TransitionBlockerList.php | ||
| Workflow.php | ||
| WorkflowInterface.php | ||