Build an Appointment Booking System With Livewire

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28. Updating the selected date

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01. Introduction and setting up

01. Introduction and demo

02. A fresh Laravel app

02. Database setup

04. Creating employees and services tables

05. Employee schedules and exclusions tables

06. Creating the appointments table

03. Displaying employees and services

07. Displaying employees and services

08. Showing all services by an employee

04. Core functionality

09. How we build up availability

10. Working with date periods

11. Iterating over requested days in a period

12. Adding schedule availability

13. Removing schedule exclusions

14. Excluding time already passed today

15. Generating slots

16. Using a custom date collection

17. Building the service availability generator

18. Adding employees into slots

19. Removing empty slots

20. Removing slots with booked appointments

05. Building the checkout

21. Scaffolding the checkout design

22. Making the employee optional

23. Loading availability

24. Building Alpine plugins

25. Showing the calendar

26. Locking unavailable dates

27. Showing the slot count on the calendar

28. Updating the selected date

29. Showing time slots

30. Setting a time slot

31. Finding an available employee

06. Booking appointments

32. Taking customer details

33. Re-checking availability

34. Creating the appointment record

07. Appointment confirmation

35. The appointment confirmation page

36. Cancelling appointments

Transcript

00:00

Let's go back to dumping out the form date at the top of the page, and we'll see one issue with what we've got at the moment. Remember, this form date is what we're eventually going to submit through to create an appointment.

00:12

But if I change the date, nothing happens here, of course, because we don't have any kind of hook on it to update our form. So what we're going to do here is we're going to add an event to this, pick this up on that input via that directive, and then we're going to push this to actually change the date within Livewire. So the way that we start doing this is we head over to our picker, first of all, and then just below where we instantiated this,

00:40

we can start to add events on here. So the event for selecting a date is just select, and we'll go ahead and get the event just through in here. Let's console log this to make sure that this is all coming through. And sure enough, if we head over, open up our console, and we choose a different day, there we go.

01:00

We get our custom event. In the detail of this, you can see that we've got the date, which we can format to how we want, and then we can push it directly back up to here. Okay, so to emit this from this directive so we can actually pick it up within that component, we're going to use the element that we're working on, which is the input, and we're going to dispatch an event on here.

01:22

So let's say dispatch event, and we're going to create a new custom event directly within JavaScript. This has nothing to do with Alpine, and we're just going to call this select. So we'll just keep it the same name. The detail is going to be the date itself.

01:36

So we're going to say edetailedDate, which we've just seen in the console. And again, we're going to format this to match what we have on the backend with Laravel. Okay, so now what we can do is head over to our checkout, go over to that input, and we can say X on select, and we can do something with this.

01:55

So let's just console log out the event data and see what happens. Okay, let's go over to the browser, open up our console, and let's change the date here and see what happens. So I'm going to click on one of these, and yeah, there we go. We get our custom event with that date in there, which we can now push back to our Livewire component.

02:15

So what we can do here is go over to our checkout. We can create out a new method in here, which is specifically to set the date. Now, the reason that we're going to do this is we might have other things we might need to do inside of here. What you can do is specifically from Alpine, using wire, update the form.

02:34

I'm going to do this just inside of a method just to keep things a bit more open. So in here, we're going to take in a date, and we're basically just going to set this form date to the date that we pass in, and we might need to do other things in here later. So now that we've got this inside of here, we can say instead of console logging this out, wire, set date,

02:58

and then we can just pass through the date that we want to set. So this is going to be event and detail, and that is all we need to do. So let's head over and see what this looks like. So I'm going to go ahead and choose a different date here, keep an eye on the date up here, and there we go.

03:16

Sure enough, it has changed. So that now becomes part of our form. So when we eventually get to select a slot, we'll set the time with that slot, and then we'll have everything in our form that we need to make a booking.

Episode summary

In this episode, we focus on making our app a bit more interactive by updating the selected date in our form when a user picks a new one. Up to this point, if you changed the date on the date picker, nothing actually happened—the form wasn’t aware that you’d chosen something new!

So, we fix this by listening for the change event when a date is selected. We tweak our Alpine directive to emit a custom select event whenever a new date is picked. By logging details to the console, we can verify that our event includes the selected date (in the right format).

Back on the form side, we hook into this custom event using Alpine’s x-on:select, and instead of just logging things, we wire it up to a new method that updates the form’s date property in our Livewire component. Now, the displayed date changes as soon as you pick a new one—progress!

Now, when a user chooses a date, it’s reflected immediately in the form data, making sure the rest of our booking process will have the correct date every time.

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