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[minor] add generic prisma model type helpers to @augment-vir/prisma-…
…node-js
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10 changes: 10 additions & 0 deletions
10
packages/prisma-node-js/src/augments/generic-prisma-client.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| /** This is not completely filled out yet. */ | ||
| export type GenericPrismaClient = Readonly< | ||
| Record< | ||
| string, | ||
| { | ||
| findFirstOrThrow: () => Promise<any>; | ||
| create: () => Promise<any>; | ||
| } | ||
| > | ||
| >; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,48 @@ | ||
| import {EmptyObject} from 'type-fest'; | ||
| import {GenericPrismaClient} from './generic-prisma-client'; | ||
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| /** Extracts all model names from the given Prisma client. */ | ||
| export type ModelName<PrismaClient extends GenericPrismaClient> = keyof { | ||
| [Model in keyof PrismaClient as PrismaClient[Model] extends {findFirstOrThrow: Function} | ||
| ? Model | ||
| : never]: boolean; | ||
| }; | ||
|
|
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| /** Extracts the creation data for a model from the given Prisma client. */ | ||
| export type ModelCreationEntry< | ||
| PrismaClient extends GenericPrismaClient, | ||
| Model extends ModelName<PrismaClient>, | ||
| > = NonNullable<NonNullable<Parameters<PrismaClient[Model]['create']>[0]>['data']>; | ||
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| /** For a given model, extract all the available "include" properties and set them all to true. */ | ||
| export type IncludeAll< | ||
| PrismaClient extends GenericPrismaClient, | ||
| Model extends ModelName<PrismaClient>, | ||
| > = | ||
| NonNullable<NonNullable<Parameters<PrismaClient[Model]['findFirstOrThrow']>[0]>> extends { | ||
| include?: infer IncludeArg; | ||
| } | ||
| ? Record<Exclude<keyof NonNullable<IncludeArg>, '_count'>, true> | ||
| : EmptyObject; | ||
|
|
||
| export type BaseModel< | ||
| PrismaClient extends GenericPrismaClient, | ||
| Model extends ModelName<PrismaClient>, | ||
| > = NonNullable<Awaited<ReturnType<PrismaClient[Model]['findFirstOrThrow']>>>; | ||
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| export type JoinedModel< | ||
| PrismaClient extends GenericPrismaClient, | ||
| Model extends ModelName<PrismaClient>, | ||
| > = { | ||
| [FieldName in Extract<keyof IncludeAll<PrismaClient, Model>, string>]: Omit< | ||
| ReturnType<PrismaClient[Model]['findFirstOrThrow']>, | ||
| 'then' | 'catch' | 'finally' | ||
| > extends Record<FieldName, () => Promise<infer Result>> | ||
| ? Result | ||
| : `Error: failed to find relation for ${FieldName}`; | ||
| }; | ||
|
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| export type FullModel< | ||
| PrismaClient extends GenericPrismaClient, | ||
| Model extends ModelName<PrismaClient>, | ||
| > = JoinedModel<PrismaClient, Model> & BaseModel<PrismaClient, Model>; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,3 +1,5 @@ | ||
| export * from './augments/generic-prisma-client'; | ||
| export * from './augments/prisma-clients-generation'; | ||
| export * from './augments/prisma-database'; | ||
| export * from './augments/prisma-migrations'; | ||
| export * from './augments/prisma-models'; |
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