优化(todo): 添加/更新/删除/状态切换加loading+乐观更新，修复Switch类型抛错

src/view/todo/todo-list.vue

@@ -27,7 +27,10 @@
            :data="dataList"
            :loading="tableLoading">
       <template slot-scope="{ row }" slot="status">
-        <i-switch :value="row.status === 1" true-value="1" false-value="0"
+        <!-- value 必须与 true-value/false-value 同类型（都是数字），否则组件内部会抛
+             'Value should be trueValue or falseValue.' 且状态不更新 -->
+        <i-switch :value="row.status" :true-value="1" :false-value="0"
+                  :loading="!!rowLoading[row.id]"
                   @on-change="val => updateStatus(row, val)">
           <span slot="open">完成</span>
           <span slot="close">未完成</span>
@@ -49,7 +52,7 @@
           :transfer="true"
           @on-ok="toDelete(index)"
         >
-          <Button type="error" size="small" icon="md-trash">删除</Button>
+          <Button type="error" size="small" icon="md-trash" :loading="!!rowLoading[row.id]">删除</Button>
         </Poptip>
       </template>
     </Table>
@@ -200,6 +203,7 @@ export default {
       addModal: false, // 添加
       editModal: false, // 编辑
       submitLoading: false,
+      rowLoading: {}, // 行级 loading：{ 待办id: true }，用于开关与删除按钮
       formItem: {
         id: '',
         title: '',
@@ -214,18 +218,27 @@ export default {
     }
   },
   methods: {
-    getDataList () {
+    /**
+     * 拉取列表
+     * @param {Boolean} silent 静默刷新：不显示表格 loading，用于乐观更新后的后台同步
+     */
+    getDataList (silent) {
       let temp = JSON.parse(JSON.stringify(this.pageParam))
       let data = objectUtil.trimJoin(temp, this.search)
-      this.tableLoading = true
+      if (!silent) {
+        this.tableLoading = true
+      }
+      const closeLoading = () => {
+        this.tableLoading = false
+      }
       getDataList(data).then(res => {
         let page = res.data.data
         this.pageTotal = page.total
         this.dataList = page.records
-        // 延迟300毫秒，给它更流畅的感觉
-        setTimeout(() => {
-          this.tableLoading = false
-        }, 300)
+        closeLoading()
+      }).catch(() => {
+        // 出错也要复位 loading，否则表格一直转圈
+        closeLoading()
       })
     },
     toAdd () {
@@ -267,53 +280,112 @@ export default {
           let data = Object.assign({}, this.formItem)
           // DatePicker 绑定的是 Date 对象，后端按 yyyy-MM-dd 字符串接收
           data.dueDate = this.formatDate(this.formItem.dueDate)
-          if (this.addModal) { // 添加
-            add(data).then(res => {
-              this.$Message.success('添加成功!')
-              this.refresh()
-              this.getDataList()
-            })
-          } else { // 编辑
-            update(data).then(res => {
-              this.$Message.success('编辑成功!')
-              this.refresh()
-              this.getDataList()
-            })
-          }
-          this.cancel()
+          const isAdd = this.addModal
+          // 按钮转圈：公网穿透链路有延迟，没有反馈会像卡住
+          this.submitLoading = true
+          const req = isAdd ? add(data) : update(data)
+          req.then(res => {
+            // 编辑走本地合并，改完立刻看到结果，不等服务端回包
+            if (!isAdd) {
+              this.mergeRow(data)
+            }
+            this.$Message.success(isAdd ? '添加成功!' : '编辑成功!')
+            // 请求成功后再关弹窗，避免"点了没反应"
+            this.modal = false
+            this.resetForm()
+            this.submitLoading = false
+            // 新增的行 id 由服务端生成，静默拉一次同步（不显示表格 loading）
+            if (isAdd) {
+              this.getDataList(true)
+            }
+          }).catch(() => {
+            this.submitLoading = false
+            this.$Message.error(isAdd ? '添加失败，请重试' : '编辑失败，请重试')
+          })
         }
       })
     },
+    /** 把提交的字段合并进当前列表对应行，实现即时更新 **/
+    mergeRow (data) {
+      let row = this.dataList.find(item => String(item.id) === String(data.id))
+      if (!row) {
+        return
+      }
+      row.title = data.title
+      row.status = data.status
+      row.priority = data.priority
+      row.dueDate = data.dueDate
+      row.remark = data.remark
+    },
     cancel () {
-      // Modal cancel
+      // Modal cancel：只关弹窗并复位表单，不清空搜索条件与分页
       this.modal = false
-      this.refresh()
+      this.resetForm()
+    },
+    /** 复位弹窗表单 **/
+    resetForm () {
+      this.formItem = {
+        id: '',
+        title: '',
+        status: 0,
+        priority: 2,
+        dueDate: '',
+        remark: ''
+      }
+      this.submitLoading = false
     },
     toDelete (index) {
       let temp = this.dataList[index]
       let data = {
         id: temp.id
       }
+      // 删除按钮转圈，给即时反馈
+      this.$set(this.rowLoading, temp.id, true)
       remove(data).then(res => {
-        this.refresh()
-        this.getDataList()
+        // 先本地移除，画面立即响应，再静默同步分页数据
+        this.dataList.splice(index, 1)
+        this.pageTotal = Math.max(0, this.pageTotal - 1)
+        // 本页删空了就退回上一页，避免停在空页
+        if (this.dataList.length === 0 && this.pageParam.pageNum > 1) {
+          this.pageParam.pageNum -= 1
+        }
+        this.$set(this.rowLoading, temp.id, false)
         this.$Message.success('删除成功!')
+        this.getDataList(true)
+      }).catch(() => {
+        this.$set(this.rowLoading, temp.id, false)
+        this.$Message.error('删除失败，请重试')
       })
     },
     updateStatus (row, value) {
       let status = value === true || value === 1 || value === '1' ? 1 : 0
+      if (row.status === status) {
+        return
+      }
       let data = {
         id: row.id,
         status: status
       }
+      const oldStatus = row.status
+      // 乐观更新：先改本地，开关立刻响应，不等网络
+      row.status = status
+      this.$set(this.rowLoading, row.id, true)
       updateStatus(data).then(res => {
+        this.$set(this.rowLoading, row.id, false)
         this.$Message.success(status === 1 ? '已完成!' : '已标记为未完成!')
-        this.getDataList()
+        // 当前按状态筛选且该行已不匹配条件时，静默刷新让它消失
+        if (this.search.status !== '' && Number(this.search.status) !== status) {
+          this.getDataList(true)
+        }
       }).catch(() => {
-        this.getDataList()
+        // 失败回滚到原状态
+        this.$set(this.rowLoading, row.id, false)
+        row.status = oldStatus
+        this.$Message.error('状态更新失败，请重试')
       })
     },
     refresh () {
+      // 重置查询条件：回到第一页并重新拉取（原来只清变量不刷列表，点了没变化）
       this.pageParam = {
         pageNum: 1,
         pageSize: 10
@@ -323,14 +395,8 @@ export default {
         status: '',
         priority: ''
       }
-      this.formItem = {
-        id: '',
-        title: '',
-        status: 0,
-        priority: 2,
-        dueDate: '',
-        remark: ''
-      }
+      this.resetForm()
+      this.getDataList()
     },
     changePage (index) {
       // 需要显示开始数据的index,(因为数据是从0开始的，页码是从1开始的，需要-1)