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paopao-ce/internal/dao/wallet.go

123 lines
3.0 KiB

package dao
import (
"github.com/rocboss/paopao-ce/internal/conf"
"github.com/rocboss/paopao-ce/internal/model"
"gorm.io/gorm"
)
func (d *dataServant) GetRechargeByID(id int64) (*model.WalletRecharge, error) {
recharge := &model.WalletRecharge{
Model: &model.Model{
ID: id,
},
}
return recharge.Get(d.engine)
}
func (d *dataServant) CreateRecharge(userId, amount int64) (*model.WalletRecharge, error) {
recharge := &model.WalletRecharge{
UserID: userId,
Amount: amount,
}
return recharge.Create(d.engine)
}
func (d *dataServant) HandleRechargeSuccess(recharge *model.WalletRecharge, tradeNo string) error {
user, _ := (&model.User{
Model: &model.Model{
ID: recharge.UserID,
},
}).Get(d.engine)
return d.engine.Transaction(func(tx *gorm.DB) error {
// 扣除金额
if err := tx.Model(user).Update("balance", gorm.Expr("balance + ?", recharge.Amount)).Error; err != nil {
// 返回任何错误都会回滚事务
return err
}
// 新增账单
if err := tx.Create(&model.WalletStatement{
UserID: user.ID,
ChangeAmount: recharge.Amount,
BalanceSnapshot: user.Balance + recharge.Amount,
Reason: "用户充值",
}).Error; err != nil {
return err
}
// 标记为已付款
if err := tx.Model(recharge).Updates(map[string]interface{}{
"trade_no": tradeNo,
"trade_status": "TRADE_SUCCESS",
}).Error; err != nil {
return err
}
// 返回 nil 提交事务
return nil
})
}
func (d *dataServant) HandlePostAttachmentBought(post *model.Post, user *model.User) error {
return d.engine.Transaction(func(tx *gorm.DB) error {
// 扣除金额
if err := tx.Model(user).Update("balance", gorm.Expr("balance - ?", post.AttachmentPrice)).Error; err != nil {
// 返回任何错误都会回滚事务
return err
}
// 新增账单
if err := tx.Create(&model.WalletStatement{
PostID: post.ID,
UserID: user.ID,
ChangeAmount: -post.AttachmentPrice,
BalanceSnapshot: user.Balance - post.AttachmentPrice,
Reason: "购买附件支出",
}).Error; err != nil {
return err
}
// 新增附件购买记录
if err := tx.Create(&model.PostAttachmentBill{
PostID: post.ID,
UserID: user.ID,
PaidAmount: post.AttachmentPrice,
}).Error; err != nil {
return err
}
// 对附件主新增账单
income := int64(float64(post.AttachmentPrice) * conf.AppSetting.AttachmentIncomeRate)
if income > 0 {
master := &model.User{
Model: &model.Model{
ID: post.UserID,
},
}
master, _ = master.Get(d.engine)
if err := tx.Model(master).Update("balance", gorm.Expr("balance + ?", income)).Error; err != nil {
// 返回任何错误都会回滚事务
return err
}
// 新增账单
if err := tx.Create(&model.WalletStatement{
PostID: post.ID,
UserID: master.ID,
ChangeAmount: income,
BalanceSnapshot: master.Balance + income,
Reason: "出售附件收入",
}).Error; err != nil {
return err
}
}
// 返回 nil 提交事务
return nil
})
}