PostgreSQL - 连接表的 SequelizeDatabaseError(代码 : 42P01)

Question

我正在尝试为多对多关系创建一个连接表。

我收到以下错误:

"name": "SequelizeDatabaseError",
"parent": {
    "name": "error",
    "length": 110,
    "severity": "ERROR",
    "code": "42P01",
    "position": "13",
    "file": "parse_relation.c",
    "line": "1160",
    "routine": "parserOpenTable",
    "sql": "INSERT INTO \"user_routes\" (\"id\",\"userId\",\"routeId\",\"createdAt\",\"updatedAt\") VALUES (DEFAULT,'1','1','2017-11-15 03:57:21.791 +00:00','2017-11-15 03:57:21.791 +00:00') RETURNING *;"
},

User和Route之间的关系:

module.exports = (sequelize, DataTypes) => {
  const Route = sequelize.define("Route", {
    open: {
      type: DataTypes.BOOLEAN,
      allowNull: true
    }
  });

  Route.associate = models => {
    Route.belongsToMany(models.User, {
      through: "userRoutes",
      as: "users"
    });
  };
  return Route;
};


module.exports = (sequelize, DataTypes) => {
  var User = sequelize.define("User", {
    email: DataTypes.TEXT,
    password: DataTypes.TEXT
  });

  User.associate = models => {
    User.belongsToMany(models.Route, {
      through: "userRoutes",
      as: "routes"
    });
  };

  return User;
};

用户和路由的迁移文件并不多，只是一些基础知识。对于连接表:

"use strict";
module.exports = {
  up: (queryInterface, Sequelize) => {
    return queryInterface.createTable("user_route", {
      id: {
        allowNull: false,
        autoIncrement: true,
        primaryKey: true,
        type: Sequelize.INTEGER
      },
      createdAt: {
        allowNull: false,
        type: Sequelize.DATE
      },
      updatedAt: {
        allowNull: false,
        type: Sequelize.DATE
      },
      userId: {
        type: Sequelize.INTEGER,
        onDelete: "CASCADE",
        references: {
          model: "Users",
          key: "id"
        }
      },
      routeId: {
        type: Sequelize.INTEGER,
        onDelete: "CASCADE",
        references: {
          model: "Routes",
          key: "id"
        }
      }
    });
  },
  down: (queryInterface, Sequelize) => {
    return queryInterface.dropTable("user_route");
  }
};

我的 Controller 和路由如下:

  create(req, res) {
    return UserRoutes.create({
      userId: req.body.userId,
      routeId: req.body.routeId
    })
      .then(userRoute => res.status(201).send(userRoute))
      .catch(err => res.status(400).send(err));
  },



app.post("/api/userRoutes", userRoutesController.create);

因此，当我尝试发布到该路由时，我在帖子顶部收到错误消息。

Answer 1

我有同样的错误，并且同样被一个不相关的问题抛出(我的 SQL 子句有单引号，但都被转义了，而且，由于查询是在我删除它们时运行的，所以我专注于删除转义的方法).我的问题是我的迁移是使用违反 PostgreSQL 命名约定的表名生成的；当我更正这个问题时(我的表名中有一个大写的首字母，所以我编辑了一个小写首字母的迁移并重新运行它)，错误消失了。也许这可以解决您的问题？