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‫Let's now, really quickly, create the model

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‫for our bookings so that then, in the next video,

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‫we can actually start creating some real bookings.

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‫So, let's close up some of these

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‫files here, also these folders.

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‫Here is the models folder and so booking model.js.

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‫And so this is, of course, gonna be very similar

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‫to what we already did before,

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‫so I will do this pretty quickly.

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‫So as always, we need mongoose,

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‫and we create our booking schema mongoose.Schema,

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‫and now, remember how we said before

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‫that we were going to use paragraph referencing

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‫here on the bookings, so basically keeping a reference

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‫to the tour and also to the user who booked the tour.

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‫So that is very easy.

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‫We did this many times before.

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‫So mongoose.Schema.ObjectId, right?

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‫And then the reference, and this one

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‫is going to point to the tour model.

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‫Then let's also say these are required,

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‫Booking must belong to a Tour.

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‫Now let's just grab this

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‫and create the same thing for a user, okay?

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‫So that's what we just said we were gonna do

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‫keeping a reference of both the tour

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‫that's being purchased and the user who does the purchase.

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‫Then we also want to know the price

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‫at which the purchase actually happened,

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‫and so that's because the price might change

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‫in the future, and so then we would no longer know

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‫how much a certain user paid for a tour.

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‫And so it's important to also have this here

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‫in the booking, so this is going to be a number,

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‫and we also require this,

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‫Booking must have a price.

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‫Next up, let's also create our time stamp createdAt,

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‫which is a date,

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‫and then simply add default

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‫so that we don't have to do anything.

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‫Finally, I also want to create a paid property,

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‫and this one will be automatically set to true,

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‫but this is just in case that, for example,

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‫an administrator wants to create a booking

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‫outside of Stripe.

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‫So, for example, if a customer doesn't have a credit card

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‫and wants to pay directly, like in a store with cash,

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‫or something like that.

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‫And in this case, an administrator might then use

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‫our bookings API in order to basically

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‫manually create a tour, and so that might then be paid

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‫or not yet paid.

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‫So just a very small detail here,

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‫by the thought of that, and thought that it might be

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‫interesting to include that here as well.

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‫But of course, by default, it will be true

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‫so that we don't have to do anything.

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‫Now finally, let's then create a model out of this,

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‫so booking is equal to mongoose.model,

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‫and then, of course, our bookingSchema

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‫and then exporting the whole thing,

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‫is equal to Booking.

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‫Now what we also want to do here

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‫is to populate the tour and the user automatically

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‫whenever there is a query, all right?

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‫So remember how we used to do that

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‫using query middleware.

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‫So, right on the Schema.pre,

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‫and then here or as usual regular expression

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‫and whatever starts with find.

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‫So here next,

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‫and then this.populate,

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‫and let's do it actually automatically

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‫for both the user and the tours.

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‫And in this case that's absolutely no problem

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‫for performance, because there won't be

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‫many calls to the bookings, because only guides and admins

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‫will actually be allowed to do them, all right?

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‫So basically, for a guide to check

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‫was actually booked their tours.

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‫So that's one of the use cases that I see

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‫for this part of the API, okay?

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‫So, again, this query will not happen that often

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‫so we can easily populate all of this

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‫without any problem.

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‫So let's populate also the tour,

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‫but here I actually want to only select the tour name.

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‫So let's say path, tour, and select just the name, okay?

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‫Now here we have some kind of error, all right,

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‫so that should of course be mongoose not moongoose.

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‫So, one more time, ESLint saved us here.

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‫Oh, and actually there are more.

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‫Save it one more time, and now we're good.

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‫So that's actually it.

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‫This is our bookings model

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‫that we can now start using in the next video.