Fix cache key when the user is not authenticated

[hosmelq]

• Added or updated tests
• Added Docs for all relevant versions
• Updated the changelog

Related Issue/Intent

@cache(private: true) fails when the user is not authenticated.

Changes

Check if the user is authenticated before create the cache key.

Breaking changes

None

[spawnia]

@hosmelq i am interested in the use case this solves. Can you give an example of when you would want this behaviour?

[hosmelq]

This is my schema.

type User {
  id: ID!
  ...
}

type Game {
  id: ID!
  viewerIsAMember: Boolean!
    @field(resolver: "App\\GraphQL\\Types\\Game@viewerIsAMember")
    @cache(maxAge: 300 private: true)
  ...
}

The viewerIsAMember field identifies if the authenticated user is part of the game but this game is accessible for not authenticated users too, for that reason I'm getting the error.

[spawnia]

Makes sense. Can you add a test case?

[spawnia]

Thanks @hosmelq nice job.