Dynamic Data
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๐งโโ๏ธ I've fixed things up a little bit and added some organization for us. Just so
you know. I've also created a couple utility functions for creating users to
make that data a tad bit more realistic and creating images that we've already
got in our
tests/fixtures/images directory.Here's a quick example of how my
img utility helps us create images:await prisma.user.create({
data: {
// stuff here
image: {
create: {
altText: `someone at the end of a cry session who's starting to feel a little better.`,
file: {
create: {
contentType: 'image/png',
blob: await fs.promises.readFile(
'./tests/fixtures/images/notes/9.png',
),
},
},
},
create: await img({
altText: `someone at the end of a cry session who's starting to feel a little better.`,
filepath: './tests/fixtures/images/notes/9.png',
}),
},
},
})
Additionally, I've also pre-loaded all the images for you, so you can simplify
it even further if you want:
await prisma.user.create({
data: {
// stuff here
image: {
create: await img({
altText: `someone at the end of a cry session who's starting to feel a little better.`,
filepath: './tests/fixtures/images/notes/9.png',
}),
}
image: { create: noteImages[9] },
},
})
I also moved things around a bit generally to be more organized and ready for
your exercise. No need to thank me. I'm just doing my job. ๐ (๐ฆ but you really
should thank your co-workers because it's a nice thing to do).
๐จโ๐ผ Thanks Kellie! Utilities like this are pretty critical for generating
data that's specific to our application. Alright, so we're going to need you to
generate a lot more data. We'll have the emoji in there to help guide you
through this a bit. As a reminder, here's one way you could do this:
const things = await Promise.all(
Array.from({ length: numberOfThings }, async () => {
// create your async thing...
}),
)
And you can use Faker to create random numbers of things with:
const things = await Promise.all(
Array.from({ length: faker.number.int({ min: 0, max: 5 }) }, async () => {
// create your async thing...
}),
)
It's very possible you will hate the level of expression nesting going on
here. That is totally fine. If you'd rather go with a more imperative style of
multiple statements and loops, that's totally fine. I personally prefer the
nesting, but there's more than one way to do this.
SQLite doesn't support
createMany, so that's why we have to do a single
create call per record we want to insert. UPDATE: With Prisma 5.12.0, you
can now use createMany with SQLite. ๐๐จ Once you're happy with your seed script, let's run it!
npx prisma db seed
๐จ And then open up the Prisma Studio to see your generated data:
npx prisma studio
