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@tapmodo
Created August 18, 2020 00:40
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Organize a flat array of objects into a better structure (~50% smaller)
[
{
"brand": {
"name": "Antonio's Pizzeria",
"slug": "1532df73-c60f-4cca-b03d-f535e031a7e1"
},
"location": {
"id": 1,
"name": "Downtown"
},
"menu": {
"slug": "7851b71a-4c88-4fb8-9546-8ec9537397ab",
"name": "Lunch Menu"
}
},
{
"brand": {
"name": "Antonio's Pizzeria",
"slug": "1532df73-c60f-4cca-b03d-f535e031a7e1"
},
"location": {
"id": 1,
"name": "Downtown"
},
"menu": {
"slug": "a4bede2e-be21-4e30-8263-874e1e77dde9",
"name": "Breakfast Menu"
}
},
{
"brand": {
"name": "Antonio's Pizzeria",
"slug": "1532df73-c60f-4cca-b03d-f535e031a7e1"
},
"location": {
"id": 2,
"name": "Valley"
},
"menu": {
"slug": "d93473ad-e8ab-4461-892e-6593d29e598f",
"name": "Breakfast Menu"
}
},
{
"brand": {
"name": "Antonio's Pizzeria",
"slug": "1532df73-c60f-4cca-b03d-f535e031a7e1"
},
"location": {
"id": 2,
"name": "Valley"
},
"menu": {
"slug": "78960d5d-823a-4501-bdd2-86522f1681f3",
"name": "Dinner Menu"
}
},
{
"brand": {
"name": "Antonio's Pizzeria",
"slug": "1532df73-c60f-4cca-b03d-f535e031a7e1"
},
"location": {
"id": 2,
"name": "Valley"
},
"menu": {
"slug": "a7fb8a9d-8036-497e-9a7a-1e1e3daeaf88",
"name": "Lunch Menu"
}
}
]
const _ = require('lodash')
function uniqueLocations (data) {
// First get a list of unique brands
const out = _.uniqBy(data.map(r => r.brand), r => r.slug)
// Then add on the locations and menus
out.forEach(brand => {
// Find unique matching locations for each brand
const mloc = _.uniqBy(data
.filter(r => r.brand.slug === brand.slug)
.map(r => r.location), r => r.id)
// Attach menus for each location
mloc.forEach(loc => {
const menus = _.uniqBy(data.filter(r =>
r.brand.slug === brand.slug &&
r.location.id === loc.id
).map(r => r.menu), r => r.slug)
loc.menus = menus
})
brand.locations = mloc
})
return out
}
[
{
"name": "Antonio's Pizzeria",
"slug": "1532df73-c60f-4cca-b03d-f535e031a7e1",
"locations": [
{
"id": 1,
"name": "Downtown",
"menus": [
{
"slug": "7851b71a-4c88-4fb8-9546-8ec9537397ab",
"name": "Lunch Menu"
},
{
"slug": "a4bede2e-be21-4e30-8263-874e1e77dde9",
"name": "Breakfast Menu"
}
]
},
{
"id": 2,
"name": "Valley",
"menus": [
{
"slug": "d93473ad-e8ab-4461-892e-6593d29e598f",
"name": "Breakfast Menu"
},
{
"slug": "78960d5d-823a-4501-bdd2-86522f1681f3",
"name": "Dinner Menu"
},
{
"slug": "a7fb8a9d-8036-497e-9a7a-1e1e3daeaf88",
"name": "Lunch Menu"
}
]
}
]
}
]
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