First pass at graphql 4 compat

_config/graphql_operations.yml

@@ -0,0 +1,9 @@
+---
+Name: versioned-graphql-dataobject
+---
+SilverStripe\GraphQL\Schema\DataObject\DataObjectModel:
+  operations:
+    copyToStage: 'SilverStripe\Versioned\GraphQL\Operations\CopyToStageCreator'
+    publish: 'SilverStripe\Versioned\GraphQL\Operations\PublishCreator'
+    unpublish: 'SilverStripe\Versioned\GraphQL\Operations\UnpublishCreator'
+    rollback: 'SilverStripe\Versioned\GraphQL\Operations\RollbackCreator'

_config/graphql_plugins.yml

@@ -0,0 +1,24 @@
+---
+Name: versioned-graphql-plugins
+Only:
+  moduleexists: 'silverstripe/graphql'
+---
+SilverStripe\Core\Injector\Injector:
+  SilverStripe\GraphQL\Schema\Registry\PluginRegistry:
+    constructor:
+      versionedDataobject: '%$SilverStripe\Versioned\GraphQL\Plugins\VersionedDataObject'
+      unpublishOnDelete: '%$SilverStripe\Versioned\GraphQL\Plugins\UnpublishOnDelete'
+      readVersionedDataObject: '%$SilverStripe\Versioned\GraphQL\Plugins\VersionedRead'
+
+# Ensure all dataobject types get the versioned plugin
+SilverStripe\GraphQL\Schema\DataObject\DataObjectModel:
+  default_plugins:
+    versionedDataObject: true
+
+SilverStripe\GraphQL\Schema\DataObject\ReadCreator:
+  default_plugins:
+    readVersionedDataObject: true
+
+SilverStripe\GraphQL\Schema\DataObject\DeleteCreator:
+  default_plugins:
+    unpublishOnDelete: true

_config/graphql_schema.yml

@@ -0,0 +1,81 @@
+---
+Name: versioned-graphql-schema
+Only:
+  moduleexists: 'silverstripe/graphql'
+---
+SilverStripe\GraphQL\Schema\Schema:
+  schemas:
+    '*':
+      enums:
+        VersionedStage:
+          description: The stage to read from or write to
+          values:
+            DRAFT:
+              value: Stage
+              description: The draft stage
+            LIVE:
+              value: Live
+              description: The live stage
+        VersionedQueryMode:
+          description: The versioned mode to use
+          values:
+            ARCHIVE:
+              value: archive
+              description: Read from a specific date of the archive
+            LATEST:
+              value: latest_versions
+              description: Read the latest version
+            DRAFT:
+              value: Stage
+              description: Read from the draft stage
+            LIVE:
+              value: Live
+              description: Read from the live stage
+            STATUS:
+              value: status
+              description: Read only records with a specific status
+            VERSION:
+              value: version
+              description: Read a specific version
+        VersionedStatus:
+          description: The stage to read from or write to
+          values:
+            PUBLISHED:
+              value: published
+              description: Only published records
+            DRAFT:
+              value: draft
+              description: Only draft records
+            ARCHIVED:
+              value: archived
+              description: Only records that have been archived
+            MODIFIED:
+              value: modified
+              description: Only records that have unpublished changes
+      types:
+        CopyToStageInputType:
+          input: true
+          fields:
+            id:
+              type: ID!
+              description: The ID of the record to copy
+            fromVersion:
+              type: Int
+              description: The source version number to copy
+            fromStage:
+              type: VersionedStage
+              description: The source stage to copy
+            toStage:
+              type: VersionedStage
+              description: The destination state to copy to
+          VersionedInputType:
+            input: true
+            fields:
+              mode: VersionedQueryMode = Stage
+              archiveDate:
+                type: String
+                description: The date to use for archive
+              status:
+                type: '[VersionedStatus]'
+                description: If mode is STATUS, specify which versioned statuses
+              version: Int