IOT/SERVER/IotAdmin/app/iot/service/group.go

package service

import (
	"errors"

    "IotAdmin/core/sdk/service"
	"gorm.io/gorm"

	"IotAdmin/app/iot/models"
	"IotAdmin/app/iot/service/dto"
	cDto "IotAdmin/common/dto"
	"IotAdmin/common/permission"
)

// IotGroupService 分组服务
type IotGroupService struct {
	service.Service
}

// GetPage 获取分组列表
func (e *IotGroupService) GetPage(c *dto.IotGroupGetPageReq, p * permission.DataPermission, list *[]models.IotGroup, count *int64) error {
	var err error
	var data models.IotGroup

	err = e.Orm.Model(&data).
		Scopes(
			cDto.MakeCondition(c.GetNeedSearch()),
			cDto.Paginate(c.GetPageSize(), c.GetPageIndex()),
			 permission.Permission(data.TableName(), p),
		).
		Find(list).Limit(-1).Offset(-1).
		Count(count).Error
	if err != nil {
		e.Log.Errorf("IotGroupService GetPage error:%s \r\n", err)
		return err
	}
	return nil
}

// Get 获取分组对象
func (e *IotGroupService) Get(d *dto.IotGroupGetReq, p * permission.DataPermission, model *models.IotGroup) error {
	var data models.IotGroup

	err := e.Orm.Model(&data).
		Scopes(
			 permission.Permission(data.TableName(), p),
		).
		First(model, d.GetId()).Error
	if err != nil && errors.Is(err, gorm.ErrRecordNotFound) {
		err = errors.New("查看对象不存在或无权查看")
		e.Log.Errorf("Service GetIotGroup error:%s \r\n", err)
		return err
	}
	if err != nil {
		e.Log.Errorf("db error:%s", err)
		return err
	}
	return nil
}

// Insert 添加分组对象
func (e *IotGroupService) Insert(c *dto.IotGroupInsertReq) error {
    var err error
    var data models.IotGroup
    c.Generate(&data)
	err = e.Orm.Create(&data).Error
	if err != nil {
		e.Log.Errorf("IotGroupService Insert error:%s \r\n", err)
		return err
	}
	return nil
}

// Update 修改分组对象
func (e *IotGroupService) Update(c *dto.IotGroupUpdateReq, p * permission.DataPermission) error {
    var err error
    var data = models.IotGroup{}
    e.Orm.Scopes(
             permission.Permission(data.TableName(), p),
        ).First(&data, c.GetId())
    c.Generate(&data)

    db := e.Orm.Save(&data)
    if err = db.Error; err != nil {
        e.Log.Errorf("IotGroupService Save error:%s \r\n", err)
        return err
    }
    if db.RowsAffected == 0 {
        return errors.New("无权更新该数据")
    }
    return nil
}

// Remove 删除分组
func (e *IotGroupService) Remove(d *dto.IotGroupDeleteReq, p * permission.DataPermission) error {
	var data models.IotGroup

	db := e.Orm.Model(&data).
		Scopes(
			 permission.Permission(data.TableName(), p),
		).Delete(&data, d.GetId())
	if err := db.Error; err != nil {
        e.Log.Errorf("Service RemoveIotGroup error:%s \r\n", err)
        return err
    }
    if db.RowsAffected == 0 {
        return errors.New("无权删除该数据")
    }
	return nil
}