没有列“id”的续集表

Question

I have the following sequelize definition of a table:

AcademyModule = sequelize.define('academy_module', {
        academy_id: DataTypes.INTEGER,
        module_id: DataTypes.INTEGER,
        module_module_type_id: DataTypes.INTEGER,
        sort_number: DataTypes.INTEGER,
        requirements_id: DataTypes.INTEGER
    }, {
        freezeTableName: true
});

As you can see there is not an id column in this table. However when I try to insert it still tries the following sql:

 INSERT INTO `academy_module` (`id`,`academy_id`,`module_id`,`sort_number`) VALUES (DEFAULT,'3',5,1);

How can I disable the id function it clearly has?

Answer 1

If you don't define a primaryKey then sequelize uses id by default.

If you want to set your own, just use primaryKey: true on your column.

AcademyModule = sequelize.define('academy_module', {
    academy_id: {
        type: DataTypes.INTEGER,
        primaryKey: true
    },
    module_id: DataTypes.INTEGER,
    module_module_type_id: DataTypes.INTEGER,
    sort_number: DataTypes.INTEGER,
    requirements_id: DataTypes.INTEGER
}, {
    freezeTableName: true
});

Answer 2

If you want to completely disable the primary key for the table, you can use Model.removeAttribute . Be warned that this could cause problems in the future, as Sequelize is an ORM and joins will need extra setup.

const AcademyModule = sequelize.define('academy_module', {
    academy_id: DataTypes.INTEGER,
    module_id: DataTypes.INTEGER,
    module_module_type_id: DataTypes.INTEGER,
    sort_number: DataTypes.INTEGER,
    requirements_id: DataTypes.INTEGER
}, {
    freezeTableName: true
});
AcademyModule.removeAttribute('id');

Answer 3

For a composite primary key, you should add "primaryKey: true" to all columns part of the primary key. Sequelize considers such columns to be part of a composite primary key.

Answer 4

If your model does not have an ID column you can use Model.removeAttribute('id'); to get rid of it.

See http://docs.sequelizejs.com/en/latest/docs/legacy/

So in your case it would be

AcademyModule = sequelize.define('academy_module', {
    academy_id: DataTypes.INTEGER,
    module_id: DataTypes.INTEGER,
    module_module_type_id: DataTypes.INTEGER,
    sort_number: DataTypes.INTEGER,
    requirements_id: DataTypes.INTEGER
}, {
    freezeTableName: true
});
AcademyModule.removeAttribute('id');

Note: You seem to be making a join table. Consider making academy_id and module_id primary keys. That way the same link will not be able to appear multiple times, and the database will not create a hidden id column in vain.

Answer 5

In this solution, sequelize adds default primary key with column name id. Add primaryKey: true with your own defined primary key.

AcademyModule = sequelize.define('academy_module', {
    academy_id: {
        type: DataTypes.INTEGER,
        primaryKey: true
    },
    module_id: DataTypes.INTEGER,
    module_module_type_id: DataTypes.INTEGER,
    sort_number: DataTypes.INTEGER,
    requirements_id: DataTypes.INTEGER
}, {
    freezeTableName: true
});