feat: add useCreateOneRelationMetadata and useRelationMetadata (#2559)

Closes #2423

front/src/modules/object-metadata/hooks/useRelationMetadata.ts

@@ -0,0 +1,49 @@
+import { RelationType } from '@/settings/data-model/types/RelationType';
+import { RelationMetadataType } from '~/generated-metadata/graphql';
+
+import { useObjectMetadataItemForSettings } from '../hooks/useObjectMetadataItemForSettings';
+import { FieldMetadataItem } from '../types/FieldMetadataItem';
+
+export const useRelationMetadata = ({
+  fieldMetadataItem,
+}: {
+  fieldMetadataItem?: FieldMetadataItem;
+}) => {
+  const { findObjectMetadataItemById } = useObjectMetadataItemForSettings();
+
+  const relationMetadata =
+    fieldMetadataItem?.fromRelationMetadata ||
+    fieldMetadataItem?.toRelationMetadata;
+
+  const relationType =
+    relationMetadata?.relationType === RelationMetadataType.OneToMany &&
+    fieldMetadataItem?.toRelationMetadata
+      ? 'MANY_TO_ONE'
+      : (relationMetadata?.relationType as RelationType);
+
+  const relationObjectMetadataId =
+    relationMetadata && 'toObjectMetadata' in relationMetadata
+      ? relationMetadata.toObjectMetadata.id
+      : relationMetadata?.fromObjectMetadata.id;
+
+  const relationObjectMetadataItem = relationObjectMetadataId
+    ? findObjectMetadataItemById(relationObjectMetadataId)
+    : undefined;
+
+  const relationFieldMetadataId =
+    relationMetadata && 'toFieldMetadataId' in relationMetadata
+      ? relationMetadata.toFieldMetadataId
+      : relationMetadata?.fromFieldMetadataId;
+
+  const relationFieldMetadataItem = relationFieldMetadataId
+    ? relationObjectMetadataItem?.fields?.find(
+        (field) => field.id === relationFieldMetadataId,
+      )
+    : undefined;
+
+  return {
+    relationFieldMetadataItem,
+    relationObjectMetadataItem,
+    relationType,
+  };
+};