I'm wondering if Laravel has some built-in state machine mechanism? And if not, what's the best way to use this excellent library called Finite (https://github.com/yohang/Finite).
Here's what I have (use case : a job board) :
- User creates an offer (initial state: created)
- User previews the offer (state: draft)
- User published the offer (final state: published)
To start, I made my model "stateful":
use Finite\StatefulInterface;
class Offer extends Eloquent implements StatefulInterface {
Then in my offers controller's store action:
$stateMachine = new StateMachine();
$stateMachine->addState(new State('created', StateInterface::TYPE_INITIAL));
$stateMachine->addState('draft');
$stateMachine->addState(new State('published', StateInterface::TYPE_FINAL));
$stateMachine->addTransition('preview', 'created', 'draft');
$stateMachine->addTransition('publish', 'draft', 'published');
$stateMachine->setObject($offer);
$stateMachine->initialize();
From what I understand, when a user previews an offer (for example), I should be calling:
$stateMachine->apply('preview').
My question is:
How do I keep track of all the states and transitions across my app? Do I store states in my Offer model? Do I create additional tables?