fix makeExistsSchema typing

Author: ymc9

packages/orm/src/client/zod/factory.ts

@@ -22,6 +22,7 @@ import type {
     CreateManyArgs,
     DeleteArgs,
     DeleteManyArgs,
+    ExistsArgs,
     FindFirstArgs,
     FindManyArgs,
     FindUniqueArgs,
@@ -209,11 +210,15 @@ export class ZodSchemaFactory<
     }
 
     @cache()
-    makeExistsSchema(model: string) {
+    makeExistsSchema<Model extends GetModels<Schema>>(
+        model: Model,
+    ): ZodType<ExistsArgs<Schema, Model, Options, ExtQueryArgs> | undefined> {
         const baseSchema = z.strictObject({
             where: this.makeWhereSchema(model, false).optional(),
         });
-        return this.mergePluginArgsSchema(baseSchema, 'exists').optional();
+        return this.mergePluginArgsSchema(baseSchema, 'exists').optional() as ZodType<
+            ExistsArgs<Schema, Model, Options, ExtQueryArgs> | undefined
+        >;
     }
 
     private makeScalarSchema(type: string, attributes?: readonly AttributeApplication[]) {

tests/e2e/orm/client-api/zod.test-d.ts

@@ -38,6 +38,14 @@ describe('Zod schema typing tests', () => {
         expectTypeOf<NonNullable<Args>>().toHaveProperty('take');
     });
 
+    it('makeExistsSchema returns a typed schema', () => {
+        const s = client.$zod.makeExistsSchema('User');
+        type Args = NonNullable<z.infer<typeof s>>;
+        expectTypeOf<Args>().toHaveProperty('where');
+        expectTypeOf<Args>().not.toHaveProperty('select');
+        expectTypeOf<Args>().not.toHaveProperty('include');
+    });
+
     it('makeCreateSchema returns a typed schema', () => {
         const s = client.$zod.makeCreateSchema('User');
         type Args = z.infer<typeof s>;