fleat: order update

order_save.php

@@ -60,6 +60,62 @@ if (empty($items)) {
 if ($isedit) {
 
     //价格判断，不能低于指导价
+    $price_error = false;
+    $error_product_name = '';
+    $error_min_price = 0;
+    $error_current_price = 0;
+    
+    foreach ($items as $item) {
+        if (empty($item['product_id'])) continue;
+        
+        $product_id = (int)$item['product_id'];
+        $quantity = (int)$item['quantity'];
+        $unit_price = (float)$item['unit_price'];
+        
+        // 查询产品名称，用于错误提示
+        $product_query = "SELECT ProductName FROM products WHERE id = $product_id";
+        $product_result = mysqli_query($conn, $product_query);
+        
+        // 检查产品是否存在
+        if (mysqli_num_rows($product_result) === 0) {
+            echo "<script>alert(\"订单中包含不存在的产品（ID: {$product_id}），请检查订单数据\");history.back();</script>";
+            exit;
+        }
+        
+        $product_row = mysqli_fetch_assoc($product_result);
+        $product_name = $product_row['ProductName'];
+        
+        // 查询该产品在价格表中的最低价格要求
+        // 根据产品ID和数量查找最接近但不超过当前订单数量的价格记录
+        $price_query = "SELECT * FROM price 
+                       WHERE productId = $product_id 
+                       AND num <= $quantity 
+                       ORDER BY num DESC 
+                       LIMIT 1";
+        
+        $price_result = mysqli_query($conn, $price_query);
+        
+        if (mysqli_num_rows($price_result) > 0) {
+            $price_row = mysqli_fetch_assoc($price_result);
+            $min_price = (float)$price_row['price'];
+            
+            // 如果单价低于指导价，标记错误
+            if ($unit_price < $min_price) {
+                $price_error = true;
+                $error_product_name = $product_name;
+                $error_min_price = $min_price;
+                $error_current_price = $unit_price;
+                break;
+            }
+        }
+    }
+    
+    // 如果价格低于指导价，显示错误并返回
+    if ($price_error) {
+        $error_message = "产品  {$error_product_name} 的价格 ({$error_current_price}) 低于指导价 ({$error_min_price})";
+        echo "<script>alert(\"{$error_message}\");history.back();</script>";
+        exit;
+    }
 
     // 更新订单基本信息
     $sql = "UPDATE orders SET 
@@ -115,9 +171,61 @@ if ($isedit) {
 } else {
 
     //价格判断，不能低于指导价
+    $price_error = false;
+    $error_product_name = '';
+    $error_min_price = 0;
+    $error_current_price = 0;
+    
     foreach ($items as $item) {
-
-
+        if (empty($item['product_id'])) continue;
+        
+        $product_id = (int)$item['product_id'];
+        $quantity = (int)$item['quantity'];
+        $unit_price = (float)$item['unit_price'];
+        
+        // 查询产品名称，用于错误提示
+        $product_query = "SELECT ProductName FROM products WHERE id = $product_id";
+        $product_result = mysqli_query($conn, $product_query);
+        
+        // 检查产品是否存在
+        if (mysqli_num_rows($product_result) === 0) {
+            echo "<script>alert(\"订单中包含不存在的产品（ID: {$product_id}），请检查订单数据\");history.back();</script>";
+            exit;
+        }
+        
+        $product_row = mysqli_fetch_assoc($product_result);
+        $product_name = $product_row['ProductName'];
+        
+        // 查询该产品在价格表中的最低价格要求
+        // 根据产品ID和数量查找最接近但不超过当前订单数量的价格记录
+        $price_query = "SELECT * FROM price 
+                       WHERE productId = $product_id 
+                       AND num <= $quantity 
+                       ORDER BY num DESC 
+                       LIMIT 1";
+        
+        $price_result = mysqli_query($conn, $price_query);
+        
+        if (mysqli_num_rows($price_result) > 0) {
+            $price_row = mysqli_fetch_assoc($price_result);
+            $min_price = (float)$price_row['price'];
+            
+            // 如果单价低于指导价，标记错误
+            if ($unit_price < $min_price) {
+                $price_error = true;
+                $error_product_name = $product_name;
+                $error_min_price = $min_price;
+                $error_current_price = $unit_price;
+                break;
+            }
+        }
+    }
+    
+    // 如果价格低于指导价，显示错误并返回
+    if ($price_error) {
+        $error_message = "产品  {$error_product_name}  的价格 ({$error_current_price}) 低于指导价 ({$error_min_price})";
+        echo "<script>alert(\"{$error_message}\");history.back();</script>";
+        exit;
     }
 
     // 创建新订单