feat: new relation in graphql-query-runner (#9883)

Fix https://github.com/twentyhq/core-team-issues/issues/300

Within GraphQLQueryRunner the new relation format will be used when the
feature flag `IsNewRelationEnabled` is set to true.

packages/twenty-server/src/engine/api/graphql/graphql-query-runner/utils/get-target-object-metadata.util.ts

@@ -0,0 +1,31 @@
+import { FieldMetadataInterface } from 'src/engine/metadata-modules/field-metadata/interfaces/field-metadata.interface';
+
+import {
+  GraphqlQueryRunnerException,
+  GraphqlQueryRunnerExceptionCode,
+} from 'src/engine/api/graphql/graphql-query-runner/errors/graphql-query-runner.exception';
+import { ObjectMetadataMaps } from 'src/engine/metadata-modules/types/object-metadata-maps';
+
+export const getTargetObjectMetadataOrThrow = (
+  fieldMetadata: FieldMetadataInterface,
+  objectMetadataMaps: ObjectMetadataMaps,
+) => {
+  if (!fieldMetadata.relationTargetObjectMetadataId) {
+    throw new GraphqlQueryRunnerException(
+      `Relation target object metadata id not found for field ${fieldMetadata.name}`,
+      GraphqlQueryRunnerExceptionCode.RELATION_TARGET_OBJECT_METADATA_NOT_FOUND,
+    );
+  }
+
+  const targetObjectMetadata =
+    objectMetadataMaps.byId[fieldMetadata.relationTargetObjectMetadataId];
+
+  if (!targetObjectMetadata) {
+    throw new GraphqlQueryRunnerException(
+      `Target object metadata not found for field ${fieldMetadata.name}`,
+      GraphqlQueryRunnerExceptionCode.RELATION_TARGET_OBJECT_METADATA_NOT_FOUND,
+    );
+  }
+
+  return targetObjectMetadata;
+};