修复收藏页面显示问题和eventBus错误

app.js

@@ -5,6 +5,29 @@ App({
     currentTab: 'index'
   },
   
+  // 事件总线，用于页面间通信
+  eventBus: {
+    on(event, callback) {
+      if (!this.handlers) this.handlers = {};
+      if (!this.handlers[event]) this.handlers[event] = [];
+      this.handlers[event].push(callback);
+    },
+    off(event, callback) {
+      if (!this.handlers || !this.handlers[event]) return;
+      this.handlers[event] = this.handlers[event].filter(handler => handler !== callback);
+    },
+    emit(event, data) {
+      if (!this.handlers || !this.handlers[event]) return;
+      this.handlers[event].forEach(handler => {
+        try {
+          handler(data);
+        } catch (error) {
+          console.error('事件处理函数执行错误:', error);
+        }
+      });
+    }
+  },
+  
   // 更新当前选中的tab
   updateCurrentTab(tabName) {
     this.globalData.currentTab = tabName;

server-example/server-mysql.js

@@ -675,17 +675,6 @@ User.init({
     defaultValue: Sequelize.NOW,
     onUpdate: Sequelize.NOW
   },
-  // 新增字段
-  sourceType: {
-    type: DataTypes.STRING(50),
-    allowNull: true,
-    comment: '货源类型'
-  },
-  supplyStatus: {
-    type: DataTypes.STRING(50),
-    allowNull: true,
-    comment: '供应状态'
-  },
 
 }, {
   sequelize,
@@ -782,6 +771,16 @@ Product.init({
     type: DataTypes.DATE,
     defaultValue: Sequelize.NOW,
     onUpdate: Sequelize.NOW
+  },
+  sourceType: {
+    type: DataTypes.STRING(50),
+    allowNull: true,
+    comment: '货源类型'
+  },
+  supplyStatus: {
+    type: DataTypes.STRING(50),
+    allowNull: true,
+    comment: '供应状态'
   }
 }, {
   sequelize,
@@ -3458,7 +3457,7 @@ app.post('/api/favorites/list', async (req, res) => {
         {
           model: Product,
           as: 'Product', // 与关联定义中的别名一致
-          attributes: ['productId', 'productName', 'price', 'quantity', 'grossWeight', 'imageUrls', 'created_at', 'specification', 'yolk']
+          attributes: ['productId', 'productName', 'price', 'quantity', 'grossWeight', 'imageUrls', 'created_at', 'specification', 'yolk', 'sourceType', 'supplyStatus']
         }
       ],
       order: [['date', 'DESC']]