fix templates v1

internal/db/questions.go

@@ -44,6 +44,9 @@ type QuestionsStore interface {
 	SetPinned(ctx context.Context, id uint, pinned bool) error
 	SetRead(ctx context.Context, id uint) error
 	SetUnread(ctx context.Context, id uint) error
+	// NextUnread 取该用户最早的一条未读提问（未读 = is_read=false 且未回答）。
+	// excludeID 用于跳过正在查看的那条，避免在两条未读之间来回跳。
+	NextUnread(ctx context.Context, userID, excludeID uint) (*Question, error)
 	SearchByUserID(ctx context.Context, userID uint, keyword string) ([]*Question, error)
 	GetHotQuestions(ctx context.Context, limit int) ([]*Question, error)
 
@@ -502,6 +505,25 @@ func (db *questions) SetUnread(ctx context.Context, id uint) error {
 	return db.WithContext(ctx).Model(&Question{}).Where("id = ? AND answer = ''", id).Update("is_read", false).Error
 }
 
+// NextUnread 按创建时间正序取第一条未读提问（未读 = is_read=false 且未回答），无则返回 nil。
+// 正序即「先来先处理」：反复取下一条就能把积压按先后顺序清空，不会跳过更早的提问。
+func (db *questions) NextUnread(ctx context.Context, userID, excludeID uint) (*Question, error) {
+	var question Question
+	q := db.WithContext(ctx).
+		Model(&Question{}).
+		Where("user_id = ? AND is_read = ? AND answer = ''", userID, false)
+	if excludeID > 0 {
+		q = q.Where("id != ?", excludeID)
+	}
+	if err := q.Order("created_at ASC, id ASC").First(&question).Error; err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return nil, nil
+		}
+		return nil, errors.Wrap(err, "get next unread question")
+	}
+	return &question, nil
+}
+
 // SearchByUserID 全文搜索提问箱主人收到的提问（含私密，仅限本人管理后台使用）。
 // 使用 LIKE 模糊匹配问题内容与回答；keyword 中的通配符 % _ \ 会被转义，避免模式滥用。
 func (db *questions) SearchByUserID(ctx context.Context, userID uint, keyword string) ([]*Question, error) {

internal/db/questions_test.go

@@ -37,6 +37,7 @@ func TestQuestions(t *testing.T) {
 		{"Count", testQuestionsCount},
 		{"SetPrivate", testQuestionsSetPrivate},
 		{"SetPublic", testQuestionsSetPublic},
+		{"NextUnread", testQuestionsNextUnread},
 	} {
 		t.Run(tc.name, func(t *testing.T) {
 			t.Cleanup(func() {
@@ -493,3 +494,55 @@ func testQuestionsSetPublic(t *testing.T, ctx context.Context, db *questions) {
 		require.False(t, got.IsPrivate)
 	})
 }
+
+// NextUnread 必须满足三条：只取本人的提问、只取未读（is_read=false 且未回答）、按最早优先。
+func testQuestionsNextUnread(t *testing.T, ctx context.Context, db *questions) {
+	create := func(userID uint, content string) *Question {
+		q, err := db.Create(ctx, CreateQuestionOptions{
+			FromIP:  "114.5.1.4",
+			UserID:  userID,
+			Content: content,
+		})
+		require.Nil(t, err)
+		return q
+	}
+
+	q1 := create(1, "Content - 1")
+	q2 := create(1, "Content - 2")
+	q3 := create(1, "Content - 3")
+	other := create(2, "Content - other")
+
+	t.Run("oldest first", func(t *testing.T) {
+		got, err := db.NextUnread(ctx, 1, 0)
+		require.Nil(t, err)
+		require.Equal(t, q1.ID, got.ID)
+	})
+
+	t.Run("exclude current", func(t *testing.T) {
+		got, err := db.NextUnread(ctx, 1, q1.ID)
+		require.Nil(t, err)
+		require.Equal(t, q2.ID, got.ID)
+	})
+
+	t.Run("only own questions", func(t *testing.T) {
+		got, err := db.NextUnread(ctx, 2, 0)
+		require.Nil(t, err)
+		require.Equal(t, other.ID, got.ID)
+	})
+
+	t.Run("skip read and answered", func(t *testing.T) {
+		require.Nil(t, db.SetRead(ctx, q1.ID))
+		require.Nil(t, db.SetRead(ctx, q2.ID))
+		require.Nil(t, db.AnswerByID(ctx, q3.ID, "Answer - 3"))
+
+		got, err := db.NextUnread(ctx, 1, 0)
+		require.Nil(t, err)
+		require.Nil(t, got, "已读与已回答都不算未读")
+	})
+
+	t.Run("empty", func(t *testing.T) {
+		got, err := db.NextUnread(ctx, 404, 0)
+		require.Nil(t, err)
+		require.Nil(t, got)
+	})
+}