Question

我该如何在续集中进行此查询

(SELECT rol FROM roles INNER JOIN user_roles ON roles.id = user_roles.roleId)

这是我的模式

sequelize.define('user_roles', {
    userId: Sequelize.INTEGER,
    roleId: Sequelize.INTEGER
  });

和角色架构

sequelize.define('roles', {
  rol: Sequelize.STRING
});

和用户角色架构

sequelize.define('user_roles', {
    userId: Sequelize.INTEGER,
    roleId: Sequelize.INTEGER
  });

在用户角色中，我添加用户ID和角色ID以进行内部联接

Answer 1

const UserRole = sequelize.define('UserRole', {
    });

    const User = sequelize.define('User', {
        name: {
            type: DataTypes.STRING,
            allowNull: false,
            required: true
        },
    });

    const Role = sequelize.define("Roles", {
        name: {
            type: DataTypes.STRING,
            allowNull: false
        }
    })

    Role.belongsToMany(User, { through: UserRole })
    User.belongsToMany(Role, { through: UserRole })

然后执行查询

const roles = await Role.findAll({
        include: [
            {
                model: User,
                through: UserRole,
                required: true
            }
        ]
    })

可以在github sscce上找到完整的运行示例。您可以克隆并运行整个演示。可以找到主要的源文件here

如何在续集中转换此内部联接？

1 个答案: