AI代码解释 type Dialectorinterface{Name()stringInitialize(*DB)errorMigrator(db*DB)MigratorDataTypeOf(*schema.Field)stringDefaultValueOf(*schema.Field)clause.ExpressionBindVarTo(writer clause.Writer,stmt*Statement,vinterface{})QuoteTo(clause.Writer,string)Explain(sql string,vars...interface{})string} ...
import("gorm.io/gorm""fmt")typeProductstruct{IDuintNamestringPricefloat64}funcmain(){db,err:=gorm.Open(mysql.Open(dsn),&gorm.Config{})iferr!=nil{panic("failed to connect database")}deferdb.Close()// 创建记录product:=Product{Name:"Laptop",Price:999.99}result:=db.Create(&product)ifresul...
typeDialectorinterface{Name()stringInitialize(*DB)errorMigrator(db*DB)MigratorDataTypeOf(*schema.Field)stringDefaultValueOf(*schema.Field)clause.ExpressionBindVarTo(writerclause.Writer,stmt*Statement,vinterface{})QuoteTo(clause.Writer,string)Explain(sqlstring,vars...interface{})string} 看到这里就明白了,...
Time MemberNumber sql.NullString ActivatedAt sql.NullTime CreatedAt time.Time UpdatedAt time.Time } 我们可以使用 gorm 字段标签来控制数据库表字段的类型、列大小、默认值等属性,比如使用 column 字段标签来映射数据库中字段名称。 type User struct { gorm.Model Name string `gorm:"column:name"` Email ...
{/** json:"id" 在json格式解析时字段名称为id。 grom:"primary_key" 对于grom框架而言,声明该字段为主键。 */Idint64`json:"id" grom:"primary_key"`UsernamestringPasswordstring}funcmain(){// 参考 https://github.com/go-sql-driver/mysql#dsn-data-source-name 获取详情dsn :="admin:yinzhengjie@...
// batch insert from `[]map[string]interface{}{}` db.Model(&User{}).Create([]map[string]interface{}{ {"Name":"jinzhu_1","Age":18}, {"Name":"jinzhu_2","Age":20}, }) 使用SQL表达式、Context Valuer创建记录(未记录) 高级选项 ...
(ctx context.Context,sstring,i...any){ifl.LogLevel>=logger.Error{l.log(getLogger(ctx).Error,s,i)}}func(l*GormLogger)Trace(ctx context.Context,begin time.Time,fcfunc()(sqlstring,rowsAffectedint64),errerror){ifl.LogLevel<=logger.Silent{return}elapsed:=time.Since(begin)sql,rows:=fc()...
type User struct {gorm.ModelName string}// 等效于type User struct {ID uint `gorm:"primaryKey"`CreatedAt time.TimeUpdatedAt time.TimeDeletedAt gorm.DeletedAt `gorm:"index"`Name string} 对于正常的结构体字段,你也可以通过标签embedded将其嵌入 ...
从源码中可以看到,该方法的接收者是gorm包里面的bd对象(该对象的类型就是前面讲的DB结构体类型),但返回值是sql包里面的DB类型(并不是gorm包里面的DB类型)。再来看看sql包里面的DB类型是什么样子: type DB struct { // Atomic access only. At top of struct to prevent mis-alignment ...
begin time.Time, fc func() (string, int64), err error) { sql, _ :...