In this episode, we focus on adding the ability for users to leave a team in our application. While it might sound simple at first, there are a few important conditions we need to consider—for example, we shouldn't let users leave if they're only part of one team, and obviously, they shouldn't be able to leave teams they aren't a member of!
We start by laying out these rules directly in our test suite, scaffolding the different scenarios that should be covered. Next, we move into actually building out the functionality in our team controller, setting up the leave action, and wiring it up to a simple button on our team settings page. There's also a bit of logic to ensure that when a user leaves a team, we properly update their current team to another they belong to.
Once the main functionality is implemented, we add a policy to enforce our rules, making sure that attempts to leave a team when not allowed are forbidden. Of course, we write tests along the way to ensure everything is working as expected—including edge cases like trying to leave a team you don't belong to, or trying to leave your last team.
Finally, we tidy up the UI by only showing the "Leave Team" button when it's actually allowed. That way, users won't even see the option if they're not supposed to leave, which makes for a better experience all round.
By the end of this episode, you'll have a robust leave team feature, complete with checks and tests to keep everything secure and user-friendly!