设备类型维护页面，表单开发中添加设备类型下拉框

src/views/system/sblx/index.vue

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+<template>
+  <ContentWrap>
+    <avue-crud
+      ref="crudRef"
+      v-model="tableForm"
+      v-model:search="tableSearch"
+      :table-loading="loading"
+      :data="tableData"
+      :option="tableOption"
+      :permission="permission"
+      :before-open="beforeOpen"
+      @search-change="searchChange"
+      @search-reset="resetChange"
+      @row-save="rowSave"
+      @row-update="rowUpdate"
+      @row-del="rowDel"
+      @refresh-change="getTableData"
+    >
+      <!-- 表单 -->
+      <template #parentId-form>
+        <el-tree-select
+          v-model="tableForm.parentId"
+          :data="sblxTree"
+          :props="{ children: 'children', label: 'industryName', value: 'id' }"
+          check-strictly
+          default-expand-all
+          placeholder="请选择上级设备类型"
+          value-key="id"
+          style="width: 366px"
+        />
+      </template>
+      <!-- 自定义按钮 -->
+      <template #menu-left="{ size }">
+        <el-button
+          plain
+          :size="size"
+          @click="defaultExpandAllShow = !defaultExpandAllShow"
+          type="danger"
+          icon="el-icon-sort"
+          >展开/折叠</el-button
+        >
+      </template>
+    </avue-crud>
+  </ContentWrap>
+</template>
+<script lang="ts" setup>
+import { defaultProps, handleTree } from '@/utils/tree'
+import * as SblxApi from '@/api/system/sblx'
+
+defineOptions({ name: 'SystemSblx' })
+
+const crudRef = ref()
+useCrudHeight(crudRef)
+
+const message = useMessage() // 消息弹窗
+const { t } = useI18n() // 国际化
+const { getCurrPermi } = useCrudPermi()
+
+const loading = ref(true) // 列表的加载中
+const defaultExpandAllShow = ref(true) // 默认展开所有表项
+const tableOption = reactive({
+  align: 'center',
+  headerAlign: 'center',
+  searchMenuSpan: 6,
+  searchMenuPosition: 'left',
+  labelSuffix: ' ',
+  span: 24,
+  rowKey: 'id',
+  rowParentKey: 'parentId',
+  defaultExpandAll: defaultExpandAllShow,
+  dialogWidth: '50%',
+  column: {
+    parentId: {
+      label: '上级设备类型',
+      hide: true,
+      minWidth: 100,
+      rules: [{ required: true, message: '上级设备类型不能为空', trigger: 'blur' }]
+    },
+    industryName: {
+      label: '设备类型名称',
+      align: 'left',
+      headerAlign: 'left',
+      search: true,
+      minWidth: 100,
+      rules: [{ required: true, message: '设备类型名称不能为空', trigger: 'blur' }]
+    },
+    industryCode: {
+      label: '设备类型编码',
+      minWidth: 100,
+      rules: [{ required: true, message: '设备类型编码不能为空', trigger: 'blur' }]
+    },
+    sort: {
+      label: '显示顺序',
+      width: 80,
+      span: 12,
+      type: 'number',
+      rules: [{ required: true, message: '显示顺序不能为空', trigger: 'blur' }]
+    }
+  }
+}) //表格配置
+const tableForm = ref<any>({})
+const tableData = ref()
+const tableSearch = ref({})
+const sblxTree = ref() // 上级设备类型
+const permission = getCurrPermi(['system:sblx'])
+
+/** 查询列表 */
+const getTableData = async () => {
+  loading.value = true
+  let searchObj = {
+    ...tableSearch.value
+  }
+  for (let key in searchObj) if (searchObj[key] === '') delete searchObj[key]
+  try {
+    const data = await SblxApi.getSblxPage(searchObj)
+
+    tableData.value = handleTree(data)
+  } finally {
+    loading.value = false
+  }
+}
+
+/** 搜索按钮操作 */
+const searchChange = (params, done) => {
+  getTableData().finally(() => {
+    done()
+  })
+}
+
+/** 清空按钮操作 */
+const resetChange = () => {
+  searchChange({}, () => {})
+}
+
+/** 表单打开前 */
+const beforeOpen = async (done, type) => {
+  await getTree()
+  const id = tableForm.value.id
+  if (['edit', 'view'].includes(type) && id) {
+    tableForm.value = await SblxApi.getSblx(id)
+  }
+  done()
+}
+
+/** 新增操作 */
+const rowSave = async (form, done, loading) => {
+  let bool = await SblxApi.createSblx(form).catch(() => false)
+  if (bool) {
+    message.success(t('common.createSuccess'))
+    resetChange()
+    done()
+  } else loading()
+}
+
+/** 编辑操作 */
+const rowUpdate = async (form, index, done, loading) => {
+  let bool = await SblxApi.updateSblx(form).catch(() => false)
+  if (bool) {
+    message.success(t('common.updateSuccess'))
+    getTableData()
+    done()
+  } else loading()
+}
+
+/** 删除按钮操作 */
+const rowDel = async (form, index) => {
+  try {
+    // 删除的二次确认
+    await message.delConfirm()
+    // 发起删除
+    await SblxApi.deleteSblx(form.id)
+    message.success(t('common.delSuccess'))
+    // 刷新列表
+    await getTableData()
+  } catch {}
+}
+
+/** 获得设备类型树 */
+const getTree = async () => {
+  sblxTree.value = []
+  const data = await SblxApi.getSimpleSblxList()
+  let sblx: SblxTree = { id: 0, industryName: '顶级设备类型', children: [] }
+  sblx.children = handleTree(data, 'id', 'parentId')
+  sblxTree.value.push(sblx)
+}
+
+watch(
+  () => defaultExpandAllShow.value,
+  () => {
+    crudRef.value?.refreshTable()
+  }
+)
+
+/** 初始化 **/
+onMounted(async () => {
+  await getTableData()
+})
+</script>