Ich habe eine funktionierende Antwort bekommen. In diesem Beispiel habe ich ein Schema, in dem eine Abteilung viele Positionen haben kann. Die Position enthält die Abteilung und die Abteilung ihre Positionen.
models/Department.js
module.exports = (sequelize, DataTypes) =>
{
const Sequelize = require('sequelize');
const Department = sequelize.define('Department',
{
...
}
Department.associate = function(models) {
Department.hasMany(models.Position, {
foreignKey: 'department_id',
as: 'positions'
});
};
return Department;
};
models/Position.js
module.exports = (sequelize, DataTypes) =>
{
const Sequelize = require('sequelize');
const Position = sequelize.define('Position',
{
...
}
Position.associate = function(models) {
Position.belongsTo(models.Department, {
foreignKey: 'department_id',
as: 'department',
onDelete: 'CASCADE'
});
};
return Position;
};
controllers/departmentController.js
exports.all = async function(req, res)
{
return Department
.findAll({include: [ 'positions' ]})
.then((data) => {
if (!data) { return res.status(400).json({status: 400,message: 'Registro não encontrado', data: data }); }
return res.status(200).json(data);
})
.catch((error) => {
return res.status(400).json({message: 'Falha no banco de dados.', data: error})
});
};
controllers/positionController.js
exports.all = async function(req, res)
{
return Position
.findAll({include: [ 'department' ]})
.then((data) => {
if (!data) { return res.status(400).json({status: 400,message: 'Registro não encontrado', data: data }); }
return res.status(200).json(data);
})
.catch((error) => {
console.log(error);
return res.status(400).json({message: 'Falha no banco de dados.', data: error})
});
};