fix(Calendar): defaultvalue 为空时,渲染异常

[xiaoyatong]

🤔 这个变动的性质是？

• 新特性提交
• 日常 bug 修复
• 站点、文档改进
• 演示代码改进
• 组件样式/交互改进
• TypeScript 定义更新
• 包体积优化
• 性能优化
• 功能增强
• 国际化改进
• 重构
• 代码风格优化
• 测试用例
• 分支合并
• 其他改动（是关于什么的改动？）

🔗 相关 Issue

💡 需求背景和解决方案

☑️ 请求合并前的自查清单

⚠️ 请自检并全部勾选全部选项。⚠️

• 文档已补充或无须补充
• 代码演示已提供或无须提供
• TypeScript 定义已补充或无须补充
• fork仓库代码是否为最新避免文件冲突
• Files changed 没有 package.json lock 等无关文件

Summary by CodeRabbit

• 重构
  • 优化了日历组件中默认值的设定逻辑，确保在不同选择模式下初始化值的一致性。
  • 简化了当前日期的更新流程，提高了组件状态更新的清晰度与稳定性。

[coderabbitai]

Walkthrough

此次 PR 调整了 CalendarItem 组件中 resetDefaultValue 函数和 useEffect 钩子的逻辑。现在，当 type 为 'single' 时返回空字符串 ('')，其他情况下返回空数组 ([])，替代之前返回的 undefined。同时，useEffect 钩子直接将 resetDefaultValue() 的返回值传递给 setCurrentDate，简化了更新当前日期状态的流程。

Changes

文件	更改摘要
src/.../calendaritem.tsx	修改 resetDefaultValue 函数：'single' 类型返回空字符串，否则返回空数组；简化 useEffect 中 setCurrentDate 的调用逻辑。

Sequence Diagram(s)

Loading

sequenceDiagram
    participant CI as CalendarItem
    participant RD as resetDefaultValue
    participant SD as setCurrentDate

    CI->>RD: 调用 resetDefaultValue()
    RD-->>CI: 根据类型返回空字符串或空数组
    CI->>SD: setCurrentDate(返回值)

Possibly related PRs

• fix: 引入错误 #2648: 调整了 CalendarItem 组件中 useConfig 导入的逻辑，与本次修改存在代码层面的相似性。

Suggested reviewers

• oasis-cloud

Poem

嗨，我是一只快乐的兔子 🐰，
跳跃在代码的花园里，
逻辑清晰风儿轻轻吹，
空字符串与数组齐齐舞，
修改完成心情好极啦！
一起奔向更美的明天！

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📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 994800f and 747f15e.

📒 Files selected for processing (1)

• src/packages/calendaritem/calendaritem.tsx (2 hunks)

⏰ Context from checks skipped due to timeout of 90000ms (1)

• GitHub Check: build

🔇 Additional comments (2)

src/packages/calendaritem/calendaritem.tsx (2)

173-173: 修复了空默认值的处理逻辑

根据日历类型返回适当的空值，修复了渲染异常问题：

• 单选模式返回空字符串
• 其他模式返回空数组

---

454-454: 简化了状态更新逻辑

直接使用 resetDefaultValue() 的返回值更新当前日期，使代码更简洁清晰。

✨ Finishing Touches

• 📝 Generate Docstrings (Beta)

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.56%. Comparing base (994800f) to head (747f15e).
Report is 2 commits behind head on next.

Additional details and impacted files

@@           Coverage Diff           @@
##             next    #3015   +/-   ##
=======================================
  Coverage   85.56%   85.56%           
=======================================
  Files         267      267           
  Lines       18003    18003           
  Branches     2726     2726           
=======================================
  Hits        15405    15405           
  Misses       2595     2595           
  Partials        3        3           

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