Schema-relations. GraphQLDocumentError - Cannot query field

Hi. I was trying to take a look how RedwoodJS scaffold UI for items with relations.

I was referencing to Documentation https://redwoodjs.com/docs/schema-relations

Following that guide I couldn’t achieve expected result.

1. I have imitated project with yarn create redwood-app ./redwoodblog
2. Copied and Pasted from section ‘You can get this working by creating an explicit relationship—defining the table structure yourself:’ code.

model Product { ... }
model Tag { ... }
model ProductsOnTag { ... }

https://github.com/artemhp/redwood-relations/blob/master/api/db/schema.prisma#L13 3. Migrate DB: yarn rw prisma migrate dev 4. Scaffold product yarn rw g scaffold product All files has been successfully created but in output there some errors:

Error: Could not generate GraphQL type definitions (web)
AggregateError: GraphQL Document Validation failed with 9 errors;
  Error 0: GraphQLDocumentError: Unknown type "Int".
    at /Users/adeikun/Projects/temp/temp2/redwoodblog/web/src/components/Product/EditProductCell/EditProductCell.js:1:28

Error 1: GraphQLDocumentError: Cannot query field "product" on type "Query".
    at /Users/adeikun/Projects/temp/temp2/redwoodblog/web/src/components/Product/EditProductCell/EditProductCell.js:2:3

Error 2: GraphQLDocumentError: Unknown type "Int".
    at /Users/adeikun/Projects/temp/temp2/redwoodblog/web/src/components/Product/EditProductCell/EditProductCell.js:1:37

Error 3: GraphQLDocumentError: Unknown type "UpdateProductInput".
    at /Users/adeikun/Projects/temp/temp2/redwoodblog/web/src/components/Product/EditProductCell/EditProductCell.js:1:51

Error 4: GraphQLDocumentError: Unknown type "CreateProductInput".
    at /Users/adeikun/Projects/temp/temp2/redwoodblog/web/src/components/Product/NewProduct/NewProduct.js:1:40

1. Run project yarn redwood dev
2. Navigate to http://localhost:8910/products In console output have errors:

api | Starting API Server...
api | Loading server config from /Users/adeikun/Projects/temp/temp2/redwoodblog/api/server.config.js 
api | 
api | Importing Server Functions... 
api | 12:32:16 💀 
api |  ⚠️ GraphQL server crashed 
api |  
api | Error: Unknown type "ProductsOnTag". Did you mean "Product"?
api |     at assertValidSDL (/Users/adeikun/Projects/temp/temp2/redwoodblog/node_modules/graphql/validation/validate.js:135:11)
api |     at Object.buildASTSchema (/Users/adeikun/Projects/temp/temp2/redwoodblog/node_modules/graphql/utilities/buildASTSchema.js:44:34)
api |     at makeExecutableSchema (/Users/adeikun/Projects/temp/temp2/redwoodblog/node_modules/@redwoodjs/graphql-server/node_modules/@graphql-tools/schema/index.js:495:26)
api |     at makeMergedSchema (/Users/adeikun/Projects/temp/temp2/redwoodblog/node_modules/@redwoodjs/graphql-server/dist/makeMergedSchema/makeMergedSchema.js:176:51)
api |     at createGraphQLHandler (/Users/adeikun/Projects/temp/temp2/redwoodblog/node_modules/@redwoodjs/graphql-server/dist/functions/graphql.js:128:53)
api |     at Object.<anonymous> (/Users/adeikun/Projects/temp/temp2/redwoodblog/api/src/functions/graphql.js:10:24)
api |     at Module._compile (node:internal/modules/cjs/loader:1101:14)
api |     at Object.Module._extensions..js (node:internal/modules/cjs/loader:1153:10)
api |     at Module.load (node:internal/modules/cjs/loader:981:32)
api |     at Function.Module._load (node:internal/modules/cjs/loader:822:12) 
api | {
api |   "err": {
api |     "type": "Error",
api |     "message": "Unknown type \"ProductsOnTag\". Did you mean \"Product\"?",
api |     "stack": "Error: Unknown type \"ProductsOnTag\". Did you mean \"Product\"?\n    at assertValidSDL (/Users/adeikun/Projects/temp/temp2/redwoodblog/node_modules/graphql/validation/validate.js:135:11)\n    at Object.buildASTSchema (/Users/adeikun/Projects/temp/temp2/redwoodblog/node_modules/graphql/utilities/buildASTSchema.js:44:34)\n    at makeExecutableSchema (/Users/adeikun/Projects/temp/temp2/redwoodblog/node_modules/@redwoodjs/graphql-server/node_modules/@graphql-tools/schema/index.js:495:26)\n    at makeMergedSchema (/Users/adeikun/Projects/temp/temp2/redwoodblog/node_modules/@redwoodjs/graphql-server/dist/makeMergedSchema/makeMergedSchema.js:176:51)\n    at createGraphQLHandler (/Users/adeikun/Projects/temp/temp2/redwoodblog/node_modules/@redwoodjs/graphql-server/dist/functions/graphql.js:128:53)\n    at Object.<anonymous> (/Users/adeikun/Projects/temp/temp2/redwoodblog/api/src/functions/graphql.js:10:24)\n    at Module._compile (node:internal/modules/cjs/loader:1101:14)\n    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1153:10)\n    at Module.load (node:internal/modules/cjs/loader:981:32)\n    at Function.Module._load (node:internal/modules/cjs/loader:822:12)"
api |   }
api | }
web | <e> [webpack-dev-server] [HPM] Error occurred while proxying request localhost:8910/graphql to http://[::1]:8911/ [ECONNREFUSED] (https://nodejs.org/api/errors.html#errors_common_system_errors)
web | <e> [webpack-dev-server] [HPM] Error occurred while proxying request localhost:8910/graphql to http://[::1]:8911/ [ECONNREFUSED] (https://nodejs.org/api/errors.html#errors_common_system_errors)

1. On UI page I see an error “The RedwoodJS API server is not available or is currently reloading. Please refresh.”

Repository with use case: https://github.com/artemhp/redwood-relations

[jtoar]

@artemhp There’s a PR that aims to fix this doc that I’ve been super behind on reviewing: https://github.com/redwoodjs/redwood/pull/4849.

The TL;DR is you have to generate SDLs for the other models in the relation. Here’s a PR on your repo that shows what I mean: https://github.com/artemhp/redwood-relations/pull/1

[jtoar]

I’m going to close this one for now; if you’d like to open a feature request we’re happy to talk about it.