In this episode, we're tackling how to let users edit a book right from our interface. Instead of just showing a toggle when someone clicks "edit," we're now replacing that with a dedicated form. The cool part? The form is pre-populated with the existing data of the book, making it super easy for users to update any details.
To make this happen, we create a new Livewire component (called UpdateBook
) that's responsible for the whole edit process. We pass the right book into this component so it knows exactly what to edit, and set up the initial state (title and author) using Livewire's lifecycle hooks, so the form fields show the current values.
We set up a submit method for the form, validate the inputs, and then perform the update in the database with Laravel's update method. Once updated, we want the interface to reflect the changes and close the edit form. To do this, we use Livewire events to communicate between components—for example, to tell the parent book item that editing is finished.
However, we start to notice a performance issue: triggering the event causes all book items in the list to re-render, not just the one we edited! This isn't ideal, especially if your list of books is long. The episode ends with a tease—next time, we'll fix this by dispatching and listening to more targeted events, so only the relevant book item updates. Stay tuned!