Obtaining key from Join Table in a Sequelize include - mysql

Question

I'm working in Node JS and Sequelize/MySQL. I have two tables Agent and Neighborhood as well as a join table AgentNeighborhood. I'd like, when querying these tables to obtain the join table key.
AgentNeighborhood
const AgentNeighborhood = sequelize.define('agentneighborhood', {
id: {
type: DataTypes.INTEGER,
primaryKey: true,
autoIncrement: true,
allowNull: false
},
agent_id: {
type: DataTypes.INTEGER,
required: true,
references: {
model: 'Agent',
key: 'id'
},
allowNull: false
},
neighborhood_id: {
type: DataTypes.INTEGER,
required: true,
references: {
model: 'Neighborhood',
key: 'id'
},
allowNull: false
},
},
{
freezeTableName: true,
underscore: true
})
Neighborhood
const Neighborhood = sequelize.define('neighborhood', {
id: {
type: DataTypes.INTEGER,
primaryKey: true,
autoIncrement: true,
allowNull: false,
},
...
...
},
{
freezeTableName: true,
})
Neighborhood.associate = (models) => {
Neighborhood.belongsToMany(models.agent, { through: 'agentneighborhood', foreignKey: 'neighborhood_id' })
}
Agent
const Agent = sequelize.define('agent', {
id: {
type: DataTypes.INTEGER,
primaryKey: true,
autoIncrement: true,
allowNull: false
},
....
},
{
freezeTableName: true,
})
Agent.associate = (models) => {
Agent.belongsToMany(models.neighborhood, { through: 'agentneighborhood', foreignKey: 'agent_id' })
}
How can I query the keys so that my result will be as follows ?
{
id // the primary key for the AgentNeighborhood table
agent_id
agent {
id // should be same as agent_id
...
}
neighborhood_id
neighborhood {
id // should be same as neighborhood_id
...
}
}
I tried the following but get an error that neighborhood is not associated to agentneighborhood.
const agentneighborhoods = await models.agentneighborhood.findAll({where: {agent_id: 1}, include: [
{model: models.neighborhood},
{model: models.agent},
]})
return agentneighborhoods

Answer 1

You need to get list of neighbors associated with that agent_id.
const agentneighborhoods= await models.neighbors.findAll({
where: { "$agentneighborhood.agent_id$": agent_id },
include: [
{
as: "agentneighborhood",
model: models.agentneighborhood,
required: true
}
]
});
return agentneighborhoods