fix(core): allow _projectId and _strengthOnPublish in templates (#5942)

* fix(core): allow `_projectId` and `_strengthOnPublish` in templates

* test(core): add _projectId and _strengthOnPublish to templates test

Author: ricokahler

dev/test-studio/schema/standard/crossDatasetReference.ts

@@ -188,6 +188,42 @@ export default defineType({
       name: 'crossDatasetSubtype',
       type: 'crossDatasetSubtype',
     },
+    {
+      name: 'initialValueTest',
+      type: 'crossDatasetReference',
+      dataset: 'playground',
+      studioUrl: ({id, type}) => {
+        return type
+          ? `${document.location.protocol}//${document.location.host}/playground/content/${type};${id}`
+          : null
+      },
+      to: [
+        {
+          type: 'book',
+          icon: BookIcon,
+          preview: {
+            select: {
+              title: 'title',
+              subtitle: 'descriptionMd',
+              media: 'coverImage',
+            },
+            prepare(val) {
+              return {
+                title: val.title,
+                subtitle: val.subtitle,
+                media: val.coverImage,
+              }
+            },
+          },
+        },
+      ],
+      initialValue: () => ({
+        _type: 'crossDatasetReference',
+        _ref: '4203c6bd-98c2-418e-9558-3ed56ebaf1d8',
+        _dataset: 'playground',
+        _projectId: 'ppsg7ml5',
+      }),
+    },
   ],
   preview: {
     select: {

dev/test-studio/schema/standard/references.ts

@@ -235,6 +235,22 @@ export default defineType({
         },
       ],
     },
+    {
+      name: 'withInitialValue',
+      type: 'reference',
+      to: [{type: 'author'}],
+      initialValue: () => ({
+        _type: 'reference',
+        _ref: 'f9a5f215-da97-47fe-960f-3452c85ed205',
+        _weak: true,
+        _strengthenOnPublish: {
+          type: 'author',
+          template: {
+            id: 'author',
+          },
+        },
+      }),
+    },
   ],
   preview: {
     select: {

packages/sanity/src/core/templates/__tests__/resolve.test.ts

@@ -90,12 +90,27 @@ describe('resolveInitialValue', () => {
     expect(
       resolveInitialValue(
         schema,
-        {...example, value: {bestFriend: {_ref: 'grrm', _type: 'reference', _weak: true}}},
+        {
+          ...example,
+          value: {
+            bestFriend: {
+              _ref: 'grrm',
+              _type: 'reference',
+              _weak: true,
+              _strengthenOnPublish: {type: 'author', template: {id: 'author'}},
+            },
+          },
+        },
         {},
         mockConfigContext,
       ),
     ).resolves.toMatchObject({
-      bestFriend: {_ref: 'grrm', _type: 'reference', _weak: true},
+      bestFriend: {
+        _ref: 'grrm',
+        _type: 'reference',
+        _weak: true,
+        _strengthenOnPublish: {type: 'author', template: {id: 'author'}},
+      },
     })
   })
 
@@ -105,13 +120,25 @@ describe('resolveInitialValue', () => {
         schema,
         {
           ...example,
-          value: {bestFriend: {_ref: 'grrm', _type: 'crossDatasetReference', _dataset: 'bffs'}},
+          value: {
+            bestFriend: {
+              _ref: 'grrm',
+              _type: 'crossDatasetReference',
+              _dataset: 'bffs',
+              _projectId: 'beep',
+            },
+          },
         },
         {},
         mockConfigContext,
       ),
     ).resolves.toMatchObject({
-      bestFriend: {_ref: 'grrm', _type: 'crossDatasetReference', _dataset: 'bffs'},
+      bestFriend: {
+        _ref: 'grrm',
+        _type: 'crossDatasetReference',
+        _dataset: 'bffs',
+        _projectId: 'beep',
+      },
     })
   })
 

packages/sanity/src/core/templates/validate.ts

@@ -5,7 +5,15 @@ import {toString as pathToString} from '@sanity/util/paths'
 import {type Template, type TemplateParameter} from './types'
 import {isRecord} from './util/isRecord'
 
-const ALLOWED_REF_PROPS = ['_dataset', '_key', '_ref', '_type', '_weak']
+const ALLOWED_REF_PROPS = [
+  '_dataset',
+  '_projectId',
+  '_strengthenOnPublish',
+  '_key',
+  '_ref',
+  '_type',
+  '_weak',
+]
 const REQUIRED_TEMPLATE_PROPS: (keyof Template)[] = ['id', 'title', 'schemaType', 'value']
 
 function templateId(template: Template, i: number) {