How to create Categories and its SubCategory in Prisma ORM using MongoDB - mongodb

Question

type Category {
id: ID! #id
name: String!
}
type SubCategoryLevel1 {
id: ID! #id
name: String!
parentCategory: Category! #relation(link: INLINE)
}
type SubCategoryLevel2 {
id: ID! #id
name: String!
parentCategory: SubCategoryLevel1! #relation(link: INLINE)
}
What if my Category levels are not decided, I'm using Prisma ORM and MongoDB.

Answer 1

Not sure I correctly understand your question. Could you go into a bit more detail what you are trying to do?
Are you trying to do arbitrarily deeply nested self-relations? Then you can do something like this:
type Category {
id: ID! #id
name: String!
subCategory: Category #relation(name:"SubToParent"link: INLINE)
parentCategory: Category #relation(name: "SubToParent")
}
Creating three levels would work with this query:
mutation createCategory {
createCategory(
data: {
name: "firstLevel"
subCategory: {
create: {
name: "secondLevel"
subCategory: { create: { name: "thirdLevel" } }
}
}
}
) {
name
}
}
And querying for categories would give you this response:
query allCategories {
categories {
name
subCategory {
name
}
parentCategory {
name
}
}
}
{
"data": {
"categories": [
{
"name": "firstLevel",
"subCategory": {
"name": "secondLevel"
},
"parentCategory": null
},
{
"name": "secondLevel",
"subCategory": {
"name": "thirdLevel"
},
"parentCategory": {
"name": "firstLevel"
}
},
{
"name": "thirdLevel",
"subCategory": null,
"parentCategory": {
"name": "secondLevel"
}
}
]
}
}
I hope that helps, if not just explain your question in a bit more detail.