gorm 动态拼接查询条件

Posted 2020-12-17 haima

结构体
type Mould struct {
	MouldId string `grom:"column:mouldID"`
	MouldInteriorID string `grom:"column:mouldInteriorID"`
	MouldName string `grom:"column:mouldName"`
	ProjectInteriorID string `grom:"column:projectInteriorID"`
	projectName string `grom:"column:projectName"`
	ProjectId string `grom:"column:projectID"`
}

  

func GetMouldAll(mouldInteriorID string,projectInteriorID string)(moulds []Mould, err error){
	var sql bytes.Buffer
	sql.WriteString("select projectName,mouldInteriorID,mouldName,mould.mouldID,mould.projectID,projectInteriorID from mould ")
	sql.WriteString("inner join Project on Project.projectID = mould.projectID where 1 = 1 ")
	if mouldInteriorID != ""{
		sql.WriteString(" and mould.mouldInteriorID=‘")
		sql.WriteString(mouldInteriorID)
		sql.WriteString("‘")
	}
	if projectInteriorID!="" {
		sql.WriteString(" and projectInteriorID=‘")
		sql.WriteString(projectInteriorID)
		sql.WriteString("‘")
	}
	rows,err := MsDb.Raw(sql.String()).Rows()
	if err != nil{
		panic(err)
	}
	for rows.Next(){
		mould := Mould{}
		err = rows.Scan(&mould.projectName,&mould.MouldInteriorID,&mould.MouldName,&mould.MouldId,&mould.ProjectId,&mould.ProjectInteriorID)
		moulds = append(moulds, mould)
	}
	rows.Close()
	return
}