Deleting a document used in relation inside array causes GraphQL error #9788
Description
Describe the Bug
I have a global A with an array that has a relation to collection B.
When a document in B is used in A, B can be deleted without any errors.
But after the deletion, fetching A via GraphQL will result in a server error because the related document is null, but the schema doesn't allow null.
Link to the code that reproduces this issue
Reproduction Steps
In the schema I have a collection Posts and a global Home.
Home has an array topPosts consisting of a relation to a post, and a text field caption.
- Create a new post 'post 1'
- Edit the
Homeglobal and add an item intopPostsrelating to 'post 1' - Delete 'post 1'
- Get the
Homeglobal through GraphQL - The server throws a schema error
Which area(s) are affected? (Select all that apply)
area: core
Environment Info
Binaries:
Node: 20.10.0
npm: 10.2.3
Yarn: 4.0.2
pnpm: 9.14.4
Relevant Packages:
payload: 3.4.0
next: 15.0.3
@payloadcms/db-postgres: 3.4.0
@payloadcms/email-nodemailer: 3.4.0
@payloadcms/graphql: 3.4.0
@payloadcms/next/utilities: 3.4.0
@payloadcms/payload-cloud: 3.4.0
@payloadcms/plugin-cloud-storage: 3.4.0
@payloadcms/plugin-seo: 3.4.0
@payloadcms/richtext-lexical: 3.4.0
@payloadcms/storage-s3: 3.4.0
@payloadcms/translations: 3.4.0
@payloadcms/ui/shared: 3.4.0
react: 19.0.0-rc-66855b96-20241106
react-dom: 19.0.0-rc-66855b96-20241106
Operating System:
Platform: darwin
Arch: arm64
Version: Darwin Kernel Version 24.2.0: Sun Nov 3 20:57:51 PST 2024; root:xnu-11215.60.405~54/RELEASE_ARM64_T8112
Available memory (MB): 16384
Available CPU cores: 8