feat!: support prisma 2.30 (#114)

@prisma/client versions _before_ 2.29.x are no longer supported

package.json

@@ -44,8 +44,8 @@
   "devDependencies": {
     "@homer0/prettier-plugin-jsdoc": "^4.0.1",
     "@prisma-labs/prettier-config": "0.1.0",
-    "@prisma/client": "2.27.0",
-    "@prisma/sdk": "^2.27.0",
+    "@prisma/client": "2.30.0",
+    "@prisma/sdk": "2.30.0",
     "@types/debug": "^4.1.7",
     "@types/expand-tilde": "^2.0.0",
     "@types/jest": "26.0.24",
@@ -72,7 +72,7 @@
     "nexus": "^1.1.0",
     "nodemon": "^2.0.12",
     "prettier": "2.3.2",
-    "prisma": "2.27.0",
+    "prisma": "2.30.0",
     "strip-ansi": "^6",
     "ts-jest": "27.0.4",
     "ts-node": "^10.1.0",
@@ -82,14 +82,14 @@
   },
   "prettier": "@prisma-labs/prettier-config",
   "peerDependencies": {
-    "@prisma/client": "2.17.x || 2.18.x || 2.19.x || 2.20.x || 2.21.x || 2.22.x || 2.23.x || 2.24.x || 2.25.x || 2.26.x || 2.27.x",
+    "@prisma/client": "2.29.x || 2.30.x",
     "nexus": "^1.0.0"
   },
   "resolutions": {
     "comment-parser": "1.1.5"
   },
   "dependencies": {
-    "@prisma/generator-helper": "^2.27.0",
+    "@prisma/generator-helper": "^2.29.x",
     "debug": "^4.3.2",
     "decimal.js": "^10.3.1",
     "dindist": "^1.0.2",

src/generator/helpers/constraints.ts

@@ -2,35 +2,36 @@ import { DMMF } from '@prisma/client/runtime'
 import { RecordUnknown } from '../../helpers/utils'
 
 /**
- * Find the unique identifiers necessary to indentify a field
+ * Find the unique identifiers necessary to indentify a field.
  *
- * Unique fields for a model can be one of (in this order):
- * 1. One (and only one) field with an @id annotation
- * 2. Multiple fields with @@id clause
- * 3. One (and only one) field with a @unique annotation (if there are multiple, use the first one)
- * 4. Multiple fields with a @@unique clause
+ * @remarks Unique fields for a model can be one of (in this order):
+ *
+ *          1. Exacrly one field with an `@id` annotation.
+ *          2. Multiple fields with `@@id` clause.
+ *          3. Exactly one field with a `@unique` annotation (if multiple, use first).
+ *          4. Multiple fields with a `@@unique` clause.
  */
 export function resolveUniqueIdentifiers(model: DMMF.Model): string[] {
-  // Try finding 1.
+  // Try finding 1
   const singleIdField = model.fields.find((f) => f.isId)
 
   if (singleIdField) {
     return [singleIdField.name]
   }
 
-  // Try finding 2.
-  if (model.idFields && model.idFields.length > 0) {
-    return model.idFields
+  // Try finding 2
+  if (model.primaryKey && model.primaryKey.fields.length > 0) {
+    return model.primaryKey.fields
   }
 
-  // Try finding 3.
+  // Try finding 3
   const singleUniqueField = model.fields.find((f) => f.isUnique)
 
   if (singleUniqueField) {
     return [singleUniqueField.name]
   }
 
-  // Try finding 4.
+  // Try finding 4
   if (model.uniqueFields && model.uniqueFields.length > 0) {
     return model.uniqueFields[0] as string[] // I don't know why typescript want a cast here
   }