Initial commit: 宁夏智慧养殖监管平台

backend/reorder-farms-id.js

@@ -0,0 +1,105 @@
+const { Farm, Animal, Device, Alert } = require('./models');
+const { sequelize } = require('./config/database-simple');
+
+async function reorderFarmsId() {
+  const transaction = await sequelize.transaction();
+  
+  try {
+    console.log('开始重新排序farms表ID...');
+    
+    // 1. 获取所有farms数据，按当前ID排序
+    const farms = await Farm.findAll({
+      order: [['id', 'ASC']],
+      transaction
+    });
+    
+    console.log(`找到 ${farms.length} 个养殖场`);
+    
+    // 2. 创建ID映射表
+    const idMapping = {};
+    farms.forEach((farm, index) => {
+      const oldId = farm.id;
+      const newId = index + 1;
+      idMapping[oldId] = newId;
+      console.log(`养殖场 "${farm.name}": ${oldId} -> ${newId}`);
+    });
+    
+    // 3. 临时禁用外键约束
+    await sequelize.query('SET FOREIGN_KEY_CHECKS = 0', { transaction });
+    
+    // 4. 创建临时表存储farms数据
+    await sequelize.query(`
+      CREATE TEMPORARY TABLE farms_temp AS 
+      SELECT * FROM farms ORDER BY id ASC
+    `, { transaction });
+    
+    // 5. 清空farms表
+    await sequelize.query('DELETE FROM farms', { transaction });
+    
+    // 6. 重置自增ID
+    await sequelize.query('ALTER TABLE farms AUTO_INCREMENT = 1', { transaction });
+    
+    // 7. 按新顺序插入数据
+    for (let i = 0; i < farms.length; i++) {
+      const farm = farms[i];
+      const newId = i + 1;
+      
+      await sequelize.query(`
+        INSERT INTO farms (id, name, type, location, address, contact, phone, status, created_at, updated_at)
+        SELECT ${newId}, name, type, location, address, contact, phone, status, created_at, updated_at
+        FROM farms_temp WHERE id = ${farm.id}
+      `, { transaction });
+    }
+    
+    // 8. 更新animals表的farm_id
+    console.log('\n更新animals表的farm_id...');
+    for (const [oldId, newId] of Object.entries(idMapping)) {
+      const result = await sequelize.query(
+        'UPDATE animals SET farm_id = ? WHERE farm_id = ?',
+        { replacements: [newId, oldId], transaction }
+      );
+      console.log(`Animals: farm_id ${oldId} -> ${newId}, 影响 ${result[0].affectedRows || 0} 行`);
+    }
+    
+    // 9. 更新devices表的farm_id
+    console.log('\n更新devices表的farm_id...');
+    for (const [oldId, newId] of Object.entries(idMapping)) {
+      const result = await sequelize.query(
+        'UPDATE devices SET farm_id = ? WHERE farm_id = ?',
+        { replacements: [newId, oldId], transaction }
+      );
+      console.log(`Devices: farm_id ${oldId} -> ${newId}, 影响 ${result[0].affectedRows || 0} 行`);
+    }
+    
+    // 10. 更新alerts表的farm_id
+    console.log('\n更新alerts表的farm_id...');
+    for (const [oldId, newId] of Object.entries(idMapping)) {
+      const result = await sequelize.query(
+        'UPDATE alerts SET farm_id = ? WHERE farm_id = ?',
+        { replacements: [newId, oldId], transaction }
+      );
+      console.log(`Alerts: farm_id ${oldId} -> ${newId}, 影响 ${result[0].affectedRows || 0} 行`);
+    }
+    
+    // 11. 重新启用外键约束
+    await sequelize.query('SET FOREIGN_KEY_CHECKS = 1', { transaction });
+    
+    // 12. 验证数据完整性
+    console.log('\n验证数据完整性...');
+    const newFarms = await Farm.findAll({ order: [['id', 'ASC']], transaction });
+    console.log('更新后的farms表:');
+    newFarms.forEach(farm => {
+      console.log(`ID: ${farm.id}, Name: ${farm.name}`);
+    });
+    
+    await transaction.commit();
+    console.log('\n✅ farms表ID重新排序完成！');
+    
+  } catch (error) {
+    await transaction.rollback();
+    console.error('❌ 重新排序失败:', error.message);
+    throw error;
+  }
+}
+
+reorderFarmsId().catch(console.error);