FEATURE: WorkspaceName with reference for unused contentStream

Neos.ContentGraph.DoctrineDbalAdapter/src/ContentGraphFactory.php

@@ -40,6 +40,10 @@ public function __construct(
 
     public function buildForWorkspace(WorkspaceName $workspaceName): ContentGraph
     {
+        if ($workspaceName->isReferencingUnusedContentStream()) {
+            return $this->buildForWorkspaceAndContentStream($workspaceName, $workspaceName->getReferencingUnusedContentStreamId());
+        }
+
         // FIXME: Should be part of this projection, this is forbidden
         $tableName = strtolower(sprintf(
             'cr_%s_p_%s',
@@ -71,7 +75,7 @@ public function buildForWorkspace(WorkspaceName $workspaceName): ContentGraph
         return $this->buildForWorkspaceAndContentStream($workspaceName, ContentStreamId::fromString($currentContentStreamId));
     }
 
-    public function buildForWorkspaceAndContentStream(WorkspaceName $workspaceName, ContentStreamId $contentStreamId): ContentGraph
+    private function buildForWorkspaceAndContentStream(WorkspaceName $workspaceName, ContentStreamId $contentStreamId): ContentGraph
     {
         return new ContentGraph($this->dbal, $this->nodeFactory, $this->contentRepositoryId, $this->nodeTypeManager, $this->tableNames, $workspaceName, $contentStreamId);
     }

Neos.ContentGraph.PostgreSQLAdapter/src/ContentHyperGraphFactory.php

@@ -31,6 +31,10 @@ public function __construct(
 
     public function buildForWorkspace(WorkspaceName $workspaceName): ContentGraphInterface
     {
+        if ($workspaceName->isReferencingUnusedContentStream()) {
+            return $this->buildForWorkspaceAndContentStream($workspaceName, $workspaceName->getReferencingUnusedContentStreamId());
+        }
+
         // FIXME: Should be part of this projection, this is forbidden
         $tableName = strtolower(sprintf(
             'cr_%s_p_%s',
@@ -55,7 +59,7 @@ public function buildForWorkspace(WorkspaceName $workspaceName): ContentGraphInt
         return $this->buildForWorkspaceAndContentStream($workspaceName, ContentStreamId::fromString($row['currentcontentstreamid']));
     }
 
-    public function buildForWorkspaceAndContentStream(WorkspaceName $workspaceName, ContentStreamId $contentStreamId): ContentGraphInterface
+    private function buildForWorkspaceAndContentStream(WorkspaceName $workspaceName, ContentStreamId $contentStreamId): ContentGraphInterface
     {
         return new ContentHyperGraph($this->dbal, $this->nodeFactory, $this->contentRepositoryId, $this->nodeTypeManager, $this->tableNamePrefix, $workspaceName, $contentStreamId);
     }

Neos.ContentRepository.Core/Classes/CommandHandlingDependencies.php

@@ -83,7 +83,7 @@ public function overrideContentStreamId(WorkspaceName $workspaceName, ContentStr
             throw new \RuntimeException('Contentstream override for this workspace already in effect, nesting not allowed.', 1715170938);
         }
 
-        $contentGraph = $this->contentRepository->projectionState(ContentGraphFinder::class)->getByWorkspaceNameAndContentStreamId($workspaceName, $contentStreamId);
+        $contentGraph = $this->contentRepository->getContentGraph(WorkspaceName::createReferenceForUnusedContentStream($contentStreamId));
         $this->overridenContentGraphInstances[$workspaceName->value] = $contentGraph;
 
         try {

Neos.ContentRepository.Core/Classes/ContentGraphFactoryInterface.php

@@ -16,7 +16,6 @@
 
 use Neos\ContentRepository\Core\Projection\ContentGraph\ContentGraphInterface;
 use Neos\ContentRepository\Core\SharedModel\Exception\WorkspaceDoesNotExist;
-use Neos\ContentRepository\Core\SharedModel\Workspace\ContentStreamId;
 use Neos\ContentRepository\Core\SharedModel\Workspace\WorkspaceName;
 
 /**
@@ -30,6 +29,4 @@ interface ContentGraphFactoryInterface
      * @throws WorkspaceDoesNotExist if the workspace does not exist
      */
     public function buildForWorkspace(WorkspaceName $workspaceName): ContentGraphInterface;
-
-    public function buildForWorkspaceAndContentStream(WorkspaceName $workspaceName, ContentStreamId $contentStreamId): ContentGraphInterface;
 }

Neos.ContentRepository.Core/Classes/ContentGraphFinder.php

@@ -67,16 +67,4 @@ public function forgetInstances(): void
     {
         $this->contentGraphInstances = [];
     }
-
-    /**
-     * For testing we allow getting an instance set by both parameters, effectively overriding the relationship at will
-     *
-     * @param WorkspaceName $workspaceName
-     * @param ContentStreamId $contentStreamId
-     * @internal Only for testing
-     */
-    public function getByWorkspaceNameAndContentStreamId(WorkspaceName $workspaceName, ContentStreamId $contentStreamId): ContentGraphInterface
-    {
-        return $this->contentGraphFactory->buildForWorkspaceAndContentStream($workspaceName, $contentStreamId);
-    }
 }

Neos.ContentRepository.Core/Classes/SharedModel/Workspace/WorkspaceName.php

@@ -48,6 +48,11 @@ public static function fromString(string $value): self
         return self::instance($value);
     }
 
+    public static function createReferenceForUnusedContentStream(ContentStreamId $contentStreamId): self
+    {
+        return self::instance('cs:' . $contentStreamId->value);
+    }
+
     public static function forLive(): self
     {
         return self::instance(self::WORKSPACE_NAME_LIVE);
@@ -92,6 +97,19 @@ public function isLive(): bool
         return $this->value === self::WORKSPACE_NAME_LIVE;
     }
 
+    /**
+     * @phpstan-assert-if-true ContentStreamId $this->getReferencingUnusedContentStreamId()
+     */
+    public function isReferencingUnusedContentStream(): bool
+    {
+        return str_starts_with($this->value, 'cs:');
+    }
+
+    public function getReferencingUnusedContentStreamId(): ?ContentStreamId
+    {
+        return $this->isReferencingUnusedContentStream() ? ContentStreamId::fromString(substr($this->value, 3)) : null;
+    }
+
     public function jsonSerialize(): string
     {
         return $this->value;

Neos.ContentRepository.TestSuite/Classes/Behavior/Features/Bootstrap/CRTestSuiteRuntimeVariables.php

@@ -37,8 +37,6 @@ trait CRTestSuiteRuntimeVariables
 {
     protected ?ContentRepository $currentContentRepository = null;
 
-    protected ?ContentStreamId $currentContentStreamId = null;
-
     protected ?WorkspaceName $currentWorkspaceName = null;
 
     protected ?DimensionSpacePoint $currentDimensionSpacePoint = null;
@@ -92,7 +90,7 @@ public function theCurrentDateAndTimeIs(string $timestamp): void
      */
     public function iAmInContentStream(string $contentStreamId): void
     {
-        $this->currentContentStreamId = ContentStreamId::fromString($contentStreamId);
+        $this->currentWorkspaceName = WorkspaceName::createReferenceForUnusedContentStream(ContentStreamId::fromString($contentStreamId));
     }
 
     /**
@@ -101,7 +99,6 @@ public function iAmInContentStream(string $contentStreamId): void
     public function iAmInWorkspace(string $workspaceName): void
     {
         $this->currentWorkspaceName = WorkspaceName::fromString($workspaceName);
-        $this->currentContentStreamId = null;
     }
 
     /**
@@ -147,11 +144,6 @@ public function getCurrentSubgraph(): ContentSubgraphInterface
     {
         $contentGraphFinder = $this->currentContentRepository->projectionState(ContentGraphFinder::class);
         $contentGraphFinder->forgetInstances();
-        if (isset($this->currentContentStreamId)) {
-            // This must still be supported for low level tests, e.g. for content stream forking
-            return $contentGraphFinder->getByWorkspaceNameAndContentStreamId($this->currentWorkspaceName, $this->currentContentStreamId)->getSubgraph($this->currentDimensionSpacePoint, $this->currentVisibilityConstraints);
-        }
-
         return $contentGraphFinder->getByWorkspaceName($this->currentWorkspaceName)->getSubgraph(
             $this->currentDimensionSpacePoint,
             $this->currentVisibilityConstraints

Neos.ContentRepository.TestSuite/Classes/Behavior/Features/Bootstrap/CRTestSuiteTrait.php

@@ -97,7 +97,6 @@ public function beforeEventSourcedScenarioDispatcher(BeforeScenarioScope $scope)
         $this->currentVisibilityConstraints = VisibilityConstraints::frontend();
         $this->currentDimensionSpacePoint = null;
         $this->currentRootNodeAggregateId = null;
-        $this->currentContentStreamId = null;
         $this->currentWorkspaceName = null;
         $this->currentNodeAggregate = null;
         $this->currentNode = null;