完成重构数据库操作代码

server/repository/user_group.go

@@ -0,0 +1,140 @@
+package repository
+
+import (
+	"gorm.io/gorm"
+	"next-terminal/server/global"
+	"next-terminal/server/model"
+	"next-terminal/server/utils"
+)
+
+type UserGroupRepository struct {
+	DB *gorm.DB
+}
+
+func NewUserGroupRepository(db *gorm.DB) *UserGroupRepository {
+	userGroupRepository = &UserGroupRepository{DB: db}
+	return userGroupRepository
+}
+
+func (r UserGroupRepository) FindAll() (o []model.UserGroup) {
+	if r.DB.Find(&o).Error != nil {
+		return nil
+	}
+	return
+}
+
+func (r UserGroupRepository) Find(pageIndex, pageSize int, name, order, field string) (o []model.UserGroup, total int64, err error) {
+	db := r.DB.Table("user_groups").Select("user_groups.id, user_groups.name, user_groups.created, count(resource_sharers.user_group_id) as asset_count").Joins("left join resource_sharers on user_groups.id = resource_sharers.user_group_id and resource_sharers.resource_type = 'asset'").Group("user_groups.id")
+	dbCounter := r.DB.Table("user_groups")
+	if len(name) > 0 {
+		db = db.Where("user_groups.name like ?", "%"+name+"%")
+		dbCounter = dbCounter.Where("name like ?", "%"+name+"%")
+	}
+
+	err = dbCounter.Count(&total).Error
+	if err != nil {
+		return nil, 0, err
+	}
+
+	if order == "ascend" {
+		order = "asc"
+	} else {
+		order = "desc"
+	}
+
+	if field == "name" {
+		field = "name"
+	} else {
+		field = "created"
+	}
+
+	err = db.Order("user_groups." + field + " " + order).Find(&o).Offset((pageIndex - 1) * pageSize).Limit(pageSize).Error
+	if o == nil {
+		o = make([]model.UserGroup, 0)
+	}
+	return
+}
+
+func (r UserGroupRepository) FindById(id string) (o model.UserGroup, err error) {
+	err = global.DB.Where("id = ?", id).First(&o).Error
+	return
+}
+
+func (r UserGroupRepository) FindUserGroupIdsByUserId(userId string) (o []string, err error) {
+	// 先查询用户所在的用户
+	err = r.DB.Table("user_group_members").Select("user_group_id").Where("user_id = ?", userId).Find(&o).Error
+	return
+}
+
+func (r UserGroupRepository) FindUserGroupMembersByUserGroupId(userGroupId string) (o []string, err error) {
+	err = r.DB.Table("user_group_members").Select("user_id").Where("user_group_id = ?", userGroupId).Find(&o).Error
+	return
+}
+
+func (r UserGroupRepository) Create(o *model.UserGroup, members []string) (err error) {
+	return r.DB.Transaction(func(tx *gorm.DB) error {
+		err = tx.Create(o).Error
+		if err != nil {
+			return err
+		}
+
+		if members != nil {
+			userGroupId := o.ID
+			err = AddUserGroupMembers(tx, members, userGroupId)
+			if err != nil {
+				return err
+			}
+		}
+		return err
+	})
+}
+
+func (r UserGroupRepository) Update(o *model.UserGroup, members []string, id string) error {
+	return r.DB.Transaction(func(tx *gorm.DB) error {
+		o.ID = id
+		err := tx.Updates(o).Error
+		if err != nil {
+			return err
+		}
+
+		err = tx.Where("user_group_id = ?", id).Delete(&model.UserGroupMember{}).Error
+		if err != nil {
+			return err
+		}
+		if members != nil {
+			userGroupId := o.ID
+			err = AddUserGroupMembers(tx, members, userGroupId)
+			if err != nil {
+				return err
+			}
+		}
+		return err
+	})
+}
+
+func (r UserGroupRepository) DeleteById(id string) {
+	r.DB.Where("id = ?", id).Delete(&model.UserGroup{})
+	r.DB.Where("user_group_id = ?", id).Delete(&model.UserGroupMember{})
+}
+
+func AddUserGroupMembers(tx *gorm.DB, userIds []string, userGroupId string) error {
+	userRepository := NewUserRepository(tx)
+	for i := range userIds {
+		userId := userIds[i]
+		_, err := userRepository.FindById(userId)
+		if err != nil {
+			return err
+		}
+
+		userGroupMember := model.UserGroupMember{
+			ID:          utils.Sign([]string{userGroupId, userId}),
+			UserId:      userId,
+			UserGroupId: userGroupId,
+		}
+		err = tx.Create(&userGroupMember).Error
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}