修复编辑货源时联系人信息被覆盖的问题

Reject.js

@@ -1380,10 +1380,21 @@ app.put('/api/supplies/:id/edit', async (req, res) => {
             return sendResponse(res, false, null, '货源已被锁定，无法编辑');
         }
 
-        // 处理联系人信息
-        let productContact = '';
-        let contactPhone = '';
-        if (contactId) {
+        // 处理联系人信息：只在有新联系人ID且能查询到时才更新，否则保持原有值
+        let productContact = null;
+        let contactPhone = null;
+        
+        // 先查询原有联系人信息
+        const [existingProduct] = await connection.query(
+            'SELECT product_contact, contact_phone FROM products WHERE id = ?',
+            [productId]
+        );
+        
+        // 如果没有提供contactId或contactId为空，使用原有联系人信息
+        if (!contactId || contactId === '') {
+            productContact = existingProduct[0].product_contact;
+            contactPhone = existingProduct[0].contact_phone;
+        } else {
             // 从userlogin数据库获取联系人信息
             const userLoginConnection = await userLoginPool.getConnection();
             const [personnelData] = await userLoginConnection.query(
@@ -1393,8 +1404,13 @@ app.put('/api/supplies/:id/edit', async (req, res) => {
             userLoginConnection.release();
             
             if (personnelData && personnelData.length > 0) {
+                // 成功查询到联系人，使用新联系人信息
                 productContact = personnelData[0].alias || '';
                 contactPhone = personnelData[0].phoneNumber || '';
+            } else {
+                // 未查询到联系人，使用原有联系人信息
+                productContact = existingProduct[0].product_contact;
+                contactPhone = existingProduct[0].contact_phone;
             }
         }
 

supply.html

@@ -4611,7 +4611,7 @@
             // 处理操作按钮
             let actionsHTML = '';
             if (supply.status === 'published') {
-                actionsHTML = `<button class="btn-primary" onclick="unpublishSupply('${supply.id}')">下架</button>`;
+                actionsHTML = `<button class="btn-primary" onclick="unpublishSupply('${supply.id}')">下架</button> <button class="btn-warning" onclick="showEditSupply('${supply.id}')">编辑</button>`;
             } else if (supply.status === 'pending_review') {
                 actionsHTML = `
                     <button class="btn-warning" onclick="showEditSupply('${supply.id}')">编辑</button>
@@ -7966,6 +7966,9 @@
                     String(autoOfflineTime.getMinutes()).padStart(2, '0') + ':' + 
                     String(autoOfflineTime.getSeconds()).padStart(2, '0');
                 
+                // 获取当前编辑的货源信息，用于保留原联系人数据
+                const currentSupply = supplyData.supplies.find(s => String(s.id) === String(currentEditSupplyId));
+                
                 const formData = {
                     productName: document.getElementById('editProductName').value,
                     sourceType: document.getElementById('editSourceType').value,