opt：树形结构

nl-vue/src/views/pmm/project/request/addRequestDialog.vue

@@ -158,7 +158,7 @@
 		startTime: '',
 		endTime: '',
 		isTop: true,
-		parentDetailId: 0
+		parentDetailId: undefined
 	})
 
 	const formData = ref(defaultForm())
@@ -173,7 +173,7 @@
 		parentDetailId: [
 			{
 				validator: async (_rule, value) => {
-					if (formData.value.isTop === false && !value) {
+				if (formData.value.isTop === false && (value === undefined || value === null || value === '')) {
 						return Promise.reject(new Error('请选择上级类目'))
 					}
 					return Promise.resolve()
@@ -183,12 +183,16 @@
 		]
 	}
 
+	const normalizeParentDetailId = (val) => {
+		if (val === undefined || val === null || val === '' || val === 0 || val === '0') {
+			return undefined
+		}
+		return val
+	}
+
 	const toTreeNode = (item = {}) => {
 		const id = item.detailId
-		const titleParts = []
-		if (item.modelName) titleParts.push(item.modelName)
-		if (item.modelDetail) titleParts.push(item.modelDetail)
-		const title = titleParts.length ? titleParts.join(' - ') : String(id || '')
+		const title = item.modelName ? item.modelName : String(id || '')
 		return {
 			title,
 			value: id,
@@ -241,7 +245,7 @@
 
 	const onTopChange = async () => {
 		if (formData.value.isTop === true) {
-			formData.value.parentDetailId = 0
+			formData.value.parentDetailId = undefined
 			parentTreeData.value = []
 		} else {
 			// 顶级新增同级（parentId = 0）加载根节点
@@ -253,11 +257,12 @@
 	const onOpen = async (payload = {}) => {
 		open.value = true
 		formData.value = Object.assign(defaultForm(), cloneDeep(payload || {}))
-		if (typeof formData.value.isTop !== 'boolean') {
-			formData.value.isTop = !formData.value.parentDetailId
-		}
-		if (formData.value.isTop) {
-			formData.value.parentDetailId = 0
+		formData.value.parentDetailId = normalizeParentDetailId(formData.value.parentDetailId)
+		if (formData.value.parentDetailId === undefined) {
+			// 同级新增且传入 parentDetailId 为 0/'0' 时也视为顶级
+			formData.value.isTop = true
+		} else if (typeof formData.value.isTop !== 'boolean') {
+			formData.value.isTop = false
 		}
 		if (formData.value.isTop === false) {
 			await loadRootTree()