497 lines
18 KiB
Go
497 lines
18 KiB
Go
package database
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import (
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"fmt"
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"log"
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"psi/config"
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"psi/models"
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"strings"
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"sync"
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"time"
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"gorm.io/driver/mysql"
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"gorm.io/gorm"
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)
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// TenantManager 租户数据库管理器
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type TenantManager struct {
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connections map[int64]*gorm.DB // about_id -> DB连接
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mu sync.RWMutex
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}
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var tenantManager *TenantManager
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func init() {
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tenantManager = &TenantManager{
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connections: make(map[int64]*gorm.DB),
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}
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}
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// GetTenantDB 获取租户数据库连接（如果不存在则创建）
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func GetTenantDB(aboutID int64) (*gorm.DB, error) {
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if aboutID == 0 {
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return DB, nil // 主库
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}
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tenantManager.mu.RLock()
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conn, exists := tenantManager.connections[aboutID]
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tenantManager.mu.RUnlock()
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if exists {
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// 增量迁移：确保现有连接也有新表
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migrateIncrementalTenantTables(conn)
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return conn, nil
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}
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// 需要创建新连接
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tenantManager.mu.Lock()
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defer tenantManager.mu.Unlock()
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// 双重检查
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if conn, exists = tenantManager.connections[aboutID]; exists {
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migrateIncrementalTenantTables(conn)
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return conn, nil
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}
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// 创建租户数据库连接
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dbName := fmt.Sprintf("psi_%d", aboutID)
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conn, err := createTenantDB(dbName)
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if err != nil {
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return nil, err
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}
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tenantManager.connections[aboutID] = conn
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log.Printf("租户数据库连接创建成功: %s", dbName)
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return conn, nil
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}
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// createTenantDB 创建租户数据库（如果不存在则新建库和表）
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func createTenantDB(dbName string) (*gorm.DB, error) {
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cfg := config.AppConfig
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// 先用主库连接检查/创建租户数据库
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mainDSN := cfg.GetDSN()
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mainDB, err := gorm.Open(mysql.Open(mainDSN), &gorm.Config{})
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if err != nil {
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return nil, fmt.Errorf("连接主库失败: %w", err)
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}
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// 检查数据库是否存在
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var exists string
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err = mainDB.Raw(fmt.Sprintf("SELECT SCHEMA_NAME FROM INFORMATION_SCHEMA.SCHEMATA WHERE SCHEMA_NAME = '%s'", dbName)).Scan(&exists).Error
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needCreate := err != nil || exists == ""
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// 创建数据库（如果不存在）
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if needCreate {
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createSQL := fmt.Sprintf("CREATE DATABASE `%s` CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci", dbName)
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if err = mainDB.Exec(createSQL).Error; err != nil {
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// 如果数据库已存在（Error 1007），忽略该错误
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if strings.Contains(err.Error(), "1007") {
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log.Printf("租户数据库已存在: %s", dbName)
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} else {
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sqlMainDB, _ := mainDB.DB()
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sqlMainDB.Close()
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return nil, fmt.Errorf("创建租户数据库失败: %w", err)
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}
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} else {
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log.Printf("租户数据库创建成功: %s", dbName)
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}
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}
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sqlMainDB, _ := mainDB.DB()
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sqlMainDB.Close()
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// 连接租户数据库
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tenantDSN := fmt.Sprintf("%s:%s@tcp(%s:%s)/%s?charset=utf8mb4&parseTime=True&loc=Local&timeout=10s&readTimeout=30s&writeTimeout=30s&interpolateParams=true&multiStatements=true&allowNativePasswords=true&checkConnLiveness=true",
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cfg.Database.User, cfg.Database.Password, cfg.Database.Host, cfg.Database.Port, dbName)
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tenantDB, err := gorm.Open(mysql.Open(tenantDSN), &gorm.Config{})
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if err != nil {
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return nil, fmt.Errorf("连接租户数据库失败: %w", err)
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}
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// 配置连接池
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sqlDB, err := tenantDB.DB()
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if err != nil {
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return nil, fmt.Errorf("获取租户数据库连接池失败: %w", err)
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}
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sqlDB.SetMaxIdleConns(20) // 最大空闲连接数
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sqlDB.SetMaxOpenConns(100) // 最大打开连接数
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sqlDB.SetConnMaxLifetime(10 * time.Minute) // 单个连接最大存活10分钟
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sqlDB.SetConnMaxIdleTime(2 * time.Minute) // 空闲连接2分钟后关闭
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migrateTenantTables(tenantDB)
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return tenantDB, nil
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}
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// migrateTenantTables 迁移租户业务表
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func migrateTenantTables(db *gorm.DB) {
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// 迁移所有业务表（不包括 Employee 表，Employee 在主库）
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err := db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='客户表'").AutoMigrate(&models.Customer{})
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if err != nil {
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log.Printf("Customer表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='库存汇总表'").AutoMigrate(&models.Inventory{})
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if err != nil {
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log.Printf("Inventory表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='库存明细表（库位级）'").AutoMigrate(&models.InventoryDetail{})
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if err != nil {
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log.Printf("InventoryDetail表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='库存流水表'").AutoMigrate(&models.InventoryLog{})
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if err != nil {
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log.Printf("InventoryLog表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='库位表'").AutoMigrate(&models.Location{})
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if err != nil {
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log.Printf("Location表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='商品分类表'").AutoMigrate(&models.ProductCategory{})
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if err != nil {
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log.Printf("ProductCategory表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='商品表'").AutoMigrate(&models.Product{})
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if err != nil {
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log.Printf("Product表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='商品单位换算表'").AutoMigrate(&models.ProductUnitConversion{})
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if err != nil {
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log.Printf("ProductUnitConversion表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='产品序列号表'").AutoMigrate(&models.ProductSerial{})
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if err != nil {
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log.Printf("ProductSerial表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='采购订单主表'").AutoMigrate(&models.PurchaseOrder{})
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if err != nil {
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log.Printf("PurchaseOrder表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='采购订单明细表'").AutoMigrate(&models.PurchaseOrderItem{})
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if err != nil {
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log.Printf("PurchaseOrderItem表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='入库单主表'").AutoMigrate(&models.ReceivingOrder{})
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if err != nil {
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log.Printf("ReceivingOrder表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='入库单明细表'").AutoMigrate(&models.ReceivingOrderItem{})
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if err != nil {
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log.Printf("ReceivingOrderItem表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='供应商表'").AutoMigrate(&models.Supplier{})
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if err != nil {
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log.Printf("Supplier表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='销售订单主表'").AutoMigrate(&models.SalesOrder{})
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if err != nil {
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log.Printf("SalesOrder表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='销售订单明细表'").AutoMigrate(&models.SalesOrderItem{})
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if err != nil {
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log.Printf("SalesOrderItem表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='仓库表'").AutoMigrate(&models.Warehouse{})
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if err != nil {
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log.Printf("Warehouse表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='波次单主表'").AutoMigrate(&models.WaveHeader{})
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if err != nil {
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log.Printf("WaveHeader表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='波次任务表'").AutoMigrate(&models.WaveTask{})
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if err != nil {
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log.Printf("WaveTask表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='波次任务明细表'").AutoMigrate(&models.WaveTaskDetail{})
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if err != nil {
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log.Printf("WaveTaskDetail表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='打印任务表'").AutoMigrate(&models.PrintTask{})
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if err != nil {
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log.Printf("PrintTask表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='打印日志表'").AutoMigrate(&models.PrintLog{})
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if err != nil {
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log.Printf("PrintLog表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='小车表'").AutoMigrate(&models.Car{})
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if err != nil {
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log.Printf("Car表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='小车店铺关联表'").AutoMigrate(&models.CarShop{})
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if err != nil {
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log.Printf("CarShop表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='店铺表'").AutoMigrate(&models.Shop{})
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if err != nil {
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log.Printf("Shop表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='盘库单主表'").AutoMigrate(&models.StockCheck{})
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if err != nil {
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log.Printf("StockCheck表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='盘库单明细表'").AutoMigrate(&models.StockCheckItem{})
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if err != nil {
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log.Printf("StockCheckItem表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='外部任务表'").AutoMigrate(&models.OutTask{})
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if err != nil {
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log.Printf("OutTask表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='外部任务异常日志表'").AutoMigrate(&models.OutTaskLog{})
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if err != nil {
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log.Printf("OutTaskLog表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='出库单主表'").AutoMigrate(&models.OutboundOrder{})
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if err != nil {
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log.Printf("OutboundOrder表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='出库单明细表'").AutoMigrate(&models.OutboundOrderItem{})
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if err != nil {
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log.Printf("OutboundOrderItem表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='发货单主表'").AutoMigrate(&models.ShippingOrder{})
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if err != nil {
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log.Printf("ShippingOrder表迁移失败: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='发货单明细表'").AutoMigrate(&models.ShippingOrderItem{})
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if err != nil {
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log.Printf("ShippingOrderItem表迁移失败: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='运费模板表'").AutoMigrate(&models.Logistics{})
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if err != nil {
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log.Printf("Logistics表迁移失败: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='统计表'").AutoMigrate(&models.Statist{})
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if err != nil {
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log.Printf("Statist表迁移失败: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='分账配置表'").AutoMigrate(&models.SplitAccountConfig{})
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if err != nil {
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log.Printf("SplitAccountConfig表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='分账扣钱日志表'").AutoMigrate(&models.SplitAccountDeductionLog{})
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if err != nil {
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log.Printf("SplitAccountDeductionLog表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='出库单库位变更记录表'").AutoMigrate(&models.OutboundOrderLocationLog{})
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if err != nil {
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log.Printf("OutboundOrderLocationLog表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='配置表'").AutoMigrate(&models.Config{})
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if err != nil {
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log.Printf("Config表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='旺店通同步任务表'").AutoMigrate(&models.WangdianSyncTask{})
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if err != nil {
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log.Printf("WangdianSyncTask表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='仪表盘每日统计表'").AutoMigrate(&models.DashboardDailyStat{})
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if err != nil {
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log.Printf("DashboardDailyStat表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='用户每日统计表'").AutoMigrate(&models.UserDailyStat{})
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if err != nil {
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log.Printf("UserDailyStat表迁移警告: %v", err)
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}
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err = db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='商品销毁日志表'").AutoMigrate(&models.ProductDestroyLog{})
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if err != nil {
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log.Printf("ProductDestroyLog表迁移警告: %v", err)
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}
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log.Println("租户业务表迁移完成")
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// 重置旺店通运行中的任务（服务重启后清理）
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resetWangdianRunningTasks(db)
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//tableOptions := "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4"
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//
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//modelsToMigrate := []interface{}{
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// //&models.BookInfo{},
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// &models.Customer{},
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// &models.Inventory{},
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// &models.InventoryDetail{},
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// &models.InventoryLog{},
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// &models.Location{},
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// &models.ProductCategory{},
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// &models.Product{},
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// &models.ProductUnitConversion{},
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// &models.ProductSerial{},
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// &models.PurchaseOrder{},
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// &models.PurchaseOrderItem{},
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// &models.ReceivingOrder{},
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// &models.ReceivingOrderItem{},
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// &models.Supplier{},
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// &models.SalesOrder{},
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// &models.SalesOrderItem{},
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// &models.Warehouse{},
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// &models.WaveHeader{},
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// &models.WaveTask{},
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// &models.WaveTaskDetail{},
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// &models.PrintTask{},
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// &models.PrintLog{},
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// &models.Car{},
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// &models.CarShop{},
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// &models.Shop{},
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// &models.StockCheck{},
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// &models.StockCheckItem{},
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// &models.OutTask{},
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// &models.OutTaskLog{},
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// &models.OutboundOrder{},
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// &models.OutboundOrderItem{},
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//}
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//
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//for _, model := range modelsToMigrate {
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// err := db.Set("gorm:table_options", tableOptions).AutoMigrate(model)
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// if err != nil {
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// log.Printf("租户表迁移警告: %v", err)
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// }
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//}
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}
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||
|
||
// CloseTenantConnections 关闭所有租户连接（用于优雅关闭）
|
||
func CloseTenantConnections() {
|
||
tenantManager.mu.Lock()
|
||
defer tenantManager.mu.Unlock()
|
||
|
||
for aboutID, conn := range tenantManager.connections {
|
||
sqlDB, err := conn.DB()
|
||
if err == nil {
|
||
sqlDB.Close()
|
||
}
|
||
delete(tenantManager.connections, aboutID)
|
||
}
|
||
log.Println("所有租户数据库连接已关闭")
|
||
}
|
||
|
||
// migrateIncrementalTenantTables 增量迁移：补充已有租户数据库可能存在的新表
|
||
func migrateIncrementalTenantTables(db *gorm.DB) {
|
||
// 检查 split_account_config 表是否存在，不存在则创建
|
||
if !db.Migrator().HasTable(&models.SplitAccountConfig{}) {
|
||
err := db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='分账配置表'").AutoMigrate(&models.SplitAccountConfig{})
|
||
if err != nil {
|
||
log.Printf("SplitAccountConfig表增量迁移警告: %v", err)
|
||
} else {
|
||
log.Println("SplitAccountConfig表增量迁移成功")
|
||
}
|
||
}
|
||
|
||
if !db.Migrator().HasTable(&models.SplitAccountDeductionLog{}) {
|
||
err := db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='分账扣钱日志表'").AutoMigrate(&models.SplitAccountDeductionLog{})
|
||
if err != nil {
|
||
log.Printf("SplitAccountDeductionLog表增量迁移警告: %v", err)
|
||
} else {
|
||
log.Println("SplitAccountDeductionLog表增量迁移成功")
|
||
}
|
||
}
|
||
|
||
if !db.Migrator().HasTable(&models.Config{}) {
|
||
err := db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='配置表'").AutoMigrate(&models.Config{})
|
||
if err != nil {
|
||
log.Printf("Config表增量迁移警告: %v", err)
|
||
} else {
|
||
log.Println("Config表增量迁移成功")
|
||
}
|
||
}
|
||
|
||
if !db.Migrator().HasTable(&models.DashboardDailyStat{}) {
|
||
err := db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='仪表盘每日统计表'").AutoMigrate(&models.DashboardDailyStat{})
|
||
if err != nil {
|
||
log.Printf("DashboardDailyStat表增量迁移警告: %v", err)
|
||
} else {
|
||
log.Println("DashboardDailyStat表增量迁移成功")
|
||
}
|
||
}
|
||
|
||
if !db.Migrator().HasTable(&models.UserDailyStat{}) {
|
||
err := db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='用户每日统计表'").AutoMigrate(&models.UserDailyStat{})
|
||
if err != nil {
|
||
log.Printf("UserDailyStat表增量迁移警告: %v", err)
|
||
} else {
|
||
log.Println("UserDailyStat表增量迁移成功")
|
||
}
|
||
}
|
||
|
||
if !db.Migrator().HasTable(&models.WangdianSyncTask{}) {
|
||
err := db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='旺店通同步任务表'").AutoMigrate(&models.WangdianSyncTask{})
|
||
if err != nil {
|
||
log.Printf("WangdianSyncTask表增量迁移警告: %v", err)
|
||
} else {
|
||
log.Println("WangdianSyncTask表增量迁移成功")
|
||
}
|
||
}
|
||
|
||
if !db.Migrator().HasTable(&models.ProductDestroyLog{}) {
|
||
err := db.Set("gorm:table_options", "ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='商品销毁日志表'").AutoMigrate(&models.ProductDestroyLog{})
|
||
if err != nil {
|
||
log.Printf("ProductDestroyLog表增量迁移警告: %v", err)
|
||
} else {
|
||
log.Println("ProductDestroyLog表增量迁移成功")
|
||
}
|
||
}
|
||
|
||
// 重置旺店通运行中的任务（服务重启后清理）
|
||
resetWangdianRunningTasks(db)
|
||
}
|
||
|
||
// resetWangdianRunningTasks 重置旺店通运行中的任务为失败状态（用于服务重启后清理）
|
||
func resetWangdianRunningTasks(db *gorm.DB) {
|
||
if !db.Migrator().HasTable(&models.WangdianSyncTask{}) {
|
||
return
|
||
}
|
||
now := time.Now().Unix()
|
||
result := db.Model(&models.WangdianSyncTask{}).
|
||
Where("status = ?", "running").
|
||
Updates(map[string]interface{}{
|
||
"status": "failed",
|
||
"error_msg": "服务重启，任务已重置",
|
||
"finished_at": now,
|
||
"updated_at": now,
|
||
})
|
||
if result.Error == nil && result.RowsAffected > 0 {
|
||
log.Printf("[数据库] 服务重启, 已重置 %d 个旺店通运行中的任务为失败状态", result.RowsAffected)
|
||
}
|
||
}
|