node.js - Sequelize 事务和增量

Question

我在使用 sequelize.transaction 和 model.increment 时遇到问题
我有这个简单的模型

class Wallet extends Model {}

Wallet.init(
  {
    // Model attributes are defined here
    id: {
      type: DataTypes.INTEGER.UNSIGNED,
      autoIncrement: true,
      primaryKey: true,
      allowNull: false,
    },
    availableBalance: {
      type: DataTypes.FLOAT,
      allowNull: false,
      defaultValue: 0,
    },
  }
);

我试图这样做:

const wallet = await Wallet.findById(1);
await sequelize.transaction(async t => {
      //more sentences
      wallet.increment('availableBalance', { by: 1, transaction: t });
});

这是失败的:

Error: commit has been called on this transaction(6de20ad2-ab57-4038-9003-fabff6437449), you can no longer use it.

注意:交易里面有更多的句子，但我只留下了冲突的那一行(增量句子)
任何想法？

Answer 1

您忘记等待异步 increment 调用:

const wallet = await Wallet.findById(1);
await sequelize.transaction(async t => {
      //more sentences
      await wallet.increment('availableBalance', { by: 1, transaction: t });
});