refactor(fields): 更新字段管理逻辑以支持订单类型特定子表展示

- 在FieldsManager类中根据订单类型动态添加子表，确保展示与订单类型一致
- 移除不必要的条件判断，简化子表展示逻辑
- 更新注释以反映新的逻辑，提升代码可读性和维护性
- 在主应用中引入metadataVersion以触发元数据更新时的树形结构重新计算

web/main.js

@@ -31,6 +31,7 @@ const app = createApp({
     // ==================== 字段元数据管理 ====================
     const metaTableLabels = Vue.ref({});
     const recommendedMeta = Vue.ref([]);
+    const metadataVersion = Vue.ref(0); // 用于触发树重新计算的响应式变量
 
     /**
      * 加载字段元数据
@@ -44,18 +45,22 @@ const app = createApp({
         fieldsManager.updateMetadata(tables, recommended);
         metaTableLabels.value = fieldsManager.tableLabels;
         recommendedMeta.value = recommended;
+        metadataVersion.value++; // 触发树重新计算
         return recommended;
       } catch (error) {
         console.error('加载字段元数据失败:', error);
         fieldsManager.updateMetadata([], []);
         metaTableLabels.value = {};
         recommendedMeta.value = [];
+        metadataVersion.value++; // 即使失败也触发更新
         return [];
       }
     };
 
     // ==================== 树形选择器数据 ====================
     const fieldTreeData = Vue.computed(() => {
+      // 引用 metadataVersion 以确保元数据更新时重新计算
+      const _version = metadataVersion.value;
       return fieldsManager.buildFieldTree(
         state.form.datasource,
         state.form.orderType
@@ -63,6 +68,8 @@ const app = createApp({
     });
 
     const editFieldTreeData = Vue.computed(() => {
+      // 引用 metadataVersion 以确保元数据更新时重新计算
+      const _version = metadataVersion.value;
       return fieldsManager.buildFieldTree(
         state.edit.datasource,
         state.edit.orderType,

web/modules/fields.js

@@ -110,17 +110,30 @@ class FieldsManager {
     const orderFields = this.getTableFields('order');
     const children = orderFields.map(f => ({ value: f.value, label: f.label }));
 
-    // 添加公共子表（这些表与订单类型无关，应始终展示）
+    // 添加公共子表（所有订单类型都有）
     children.push(this.buildTreeNode('merchant', this.getTableFields('merchant')));
     children.push(this.buildTreeNode('activity', this.getTableFields('activity')));
 
-    // 为避免“有时显示有时不显示”的问题，这里不再按订单类型裁剪子表，
+    // 根据订单类型添加特定子表
-    // 而是始终展示所有与订单相关的子表，由业务在导出层面控制是否使用。
+    if (orderType === 2) {
+      // 直充卡密
       children.push(this.buildTreeNode('order_digit', this.getTableFields('order_digit')));
+    } else if (orderType === 3) {
+      // 立减金
       children.push(this.buildTreeNode('order_voucher', this.getTableFields('order_voucher')));
-    children.push(this.buildTreeNode('order_cash', this.getTableFields('order_cash')));
       children.push(this.buildTreeNode('goods_voucher_batch', this.getTableFields('goods_voucher_batch')));
       children.push(this.buildTreeNode('goods_voucher_subject_config', this.getTableFields('goods_voucher_subject_config')));
+    } else if (orderType === 1) {
+      // 红包
+      children.push(this.buildTreeNode('order_cash', this.getTableFields('order_cash')));
+    } else {
+      // 未指定类型或全部类型（orderType = 0 或其他）
+      children.push(this.buildTreeNode('order_voucher', this.getTableFields('order_voucher')));
+      children.push(this.buildTreeNode('order_cash', this.getTableFields('order_cash')));
+      children.push(this.buildTreeNode('order_digit', this.getTableFields('order_digit')));
+      children.push(this.buildTreeNode('goods_voucher_batch', this.getTableFields('goods_voucher_batch')));
+      children.push(this.buildTreeNode('goods_voucher_subject_config', this.getTableFields('goods_voucher_subject_config')));
+    }
 
     return children;
   }