81 lines
1.6 KiB
Go
81 lines
1.6 KiB
Go
package database
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import (
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"fmt"
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"github.com/emsoft/HospitalPay-Go/internal/config"
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"github.com/emsoft/HospitalPay-Go/internal/pkg/logger"
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"gorm.io/driver/mysql"
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"gorm.io/gorm"
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"gorm.io/gorm/schema"
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)
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var DB *gorm.DB
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// Init 初始化数据库连接
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func Init() error {
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var err error
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dbConfig := config.GlobalConfig.Database
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dsn := fmt.Sprintf("%s:%s@tcp(%s:%d)/%s?charset=%s&parseTime=%v&loc=%s",
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dbConfig.Username,
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dbConfig.Password,
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dbConfig.Host,
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dbConfig.Port,
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dbConfig.DBName,
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dbConfig.Charset,
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dbConfig.ParseTime,
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dbConfig.Loc,
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)
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DB, err = gorm.Open(mysql.Open(dsn), &gorm.Config{
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NamingStrategy: schema.NamingStrategy{
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TablePrefix: "t_", // 表名前缀
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SingularTable: true, // 使用单数表名
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},
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Logger: NewGormLogger(),
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})
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if err != nil {
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return fmt.Errorf("connect to database failed: %v", err)
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}
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// 设置连接池
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sqlDB, err := DB.DB()
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if err != nil {
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return fmt.Errorf("get db instance failed: %v", err)
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}
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sqlDB.SetMaxIdleConns(dbConfig.MaxIdleConns)
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sqlDB.SetMaxOpenConns(dbConfig.MaxOpenConns)
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sqlDB.SetConnMaxLifetime(dbConfig.ConnMaxLifetime)
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// 测试连接
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if err := sqlDB.Ping(); err != nil {
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return fmt.Errorf("ping database failed: %v", err)
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}
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logger.Info("Database connected successfully")
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return nil
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}
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// GetDB 获取数据库连接
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func GetDB() *gorm.DB {
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return DB
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}
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// Close 关闭数据库连接
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func Close() error {
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sqlDB, err := DB.DB()
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if err != nil {
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return err
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}
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return sqlDB.Close()
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}
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// Transaction 事务处理
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func Transaction(fn func(tx *gorm.DB) error) error {
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return DB.Transaction(fn)
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}
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