chore: add parent field to memo

api/v1/memo.go

@@ -57,6 +57,7 @@ type Memo struct {
 	Pinned     bool       `json:"pinned"`
 
 	// Related fields
+	Parent          *Memo           `json:"parent"`
 	CreatorName     string          `json:"creatorName"`
 	CreatorUsername string          `json:"creatorUsername"`
 	ResourceList    []*Resource     `json:"resourceList"`
@@ -849,6 +850,22 @@ func (s *APIV1Service) convertMemoFromStore(ctx context.Context, memo *store.Mem
 	}
 	memoResponse.ResourceList = resourceList
 
+	if memo.ParentID != nil {
+		parentMemo, err := s.Store.GetMemo(ctx, &store.FindMemo{
+			ID: memo.ParentID,
+		})
+		if err != nil {
+			return nil, err
+		}
+		if parentMemo != nil {
+			parent, err := s.convertMemoFromStore(ctx, parentMemo)
+			if err != nil {
+				return nil, err
+			}
+			memoResponse.Parent = parent
+		}
+	}
+
 	return memoResponse, nil
 }
 

store/memo.go

@@ -42,6 +42,9 @@ type Memo struct {
 	Visibility Visibility
 
 	// Composed fields
+	// For those comment memos, the parent ID is the memo ID of the memo being commented.
+	// If the parent ID is nil, then this memo is not a comment.
+	ParentID       *int32
 	Pinned         bool
 	ResourceIDList []int32
 	RelationList   []*MemoRelation

store/mysql/memo.go

@@ -176,11 +176,16 @@ func (d *Driver) ListMemos(ctx context.Context, find *store.FindMemo) ([]*store.
 				if err != nil {
 					return nil, err
 				}
+				relationType := store.MemoRelationType(relatedMemoTypeList[1])
 				memo.RelationList = append(memo.RelationList, &store.MemoRelation{
 					MemoID:        memo.ID,
 					RelatedMemoID: relatedMemoID,
-					Type:          store.MemoRelationType(relatedMemoTypeList[1]),
+					Type:          relationType,
 				})
+				// Set the first parent ID if relation type is comment.
+				if memo.ParentID == nil && relationType == store.MemoRelationComment {
+					memo.ParentID = &relatedMemoID
+				}
 			}
 		}
 		list = append(list, &memo)

store/sqlite/memo.go

@@ -176,11 +176,16 @@ func (d *Driver) ListMemos(ctx context.Context, find *store.FindMemo) ([]*store.
 				if err != nil {
 					return nil, err
 				}
+				relationType := store.MemoRelationType(relatedMemoTypeList[1])
 				memo.RelationList = append(memo.RelationList, &store.MemoRelation{
 					MemoID:        memo.ID,
 					RelatedMemoID: relatedMemoID,
-					Type:          store.MemoRelationType(relatedMemoTypeList[1]),
+					Type:          relationType,
 				})
+				// Set the first parent ID if relation type is comment.
+				if memo.ParentID == nil && relationType == store.MemoRelationComment {
+					memo.ParentID = &relatedMemoID
+				}
 			}
 		}
 		list = append(list, &memo)