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Lorenzo Sanesi
2026-04-01 23:49:19 +02:00
parent 8752acd2c4
commit e2fe8b264f
52 changed files with 1351 additions and 400 deletions
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backend-node/models/associations.js
+42 -17
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@@ -1,21 +1,46 @@
module.exports = (sequelize) => {
const { User, Group, FriendRequest, Friendship } = sequelize.models;
// eslint-disable-next-line import/no-import-module-exports
import { DataTypes } from 'sequelize';
// User <-> Group: Many-to-Many
// A User can be in many Groups, and a Group can have many Users (members).
const UserGroup = sequelize.define('UserGroup', {}, { timestamps: false });
User.belongsToMany(Group, { through: UserGroup, foreignKey: 'userId' });
Group.belongsToMany(User, { through: UserGroup, as: 'members', foreignKey: 'groupId' });
module.exports = sequelize => {
const { User, Group, FriendRequest, Friendship } = sequelize.models;
// Friendship is a direct link between two users.
// user1Id will always be less than user2Id to ensure uniqueness.
Friendship.belongsTo(User, { as: 'user1', foreignKey: 'user1Id' });
Friendship.belongsTo(User, { as: 'user2', foreignKey: 'user2Id' });
// User <-> Group: Many-to-Many
// Il modello dichiara esplicitamente la colonna id per evitare che sync() la cerchi
// sulla tabella UserGroups senza trovarla (causando errori su RETURNING "id").
const UserGroup = sequelize.define(
'UserGroup',
{
id: { type: DataTypes.INTEGER, primaryKey: true, autoIncrement: true },
userId: { type: DataTypes.INTEGER, allowNull: false },
groupId: { type: DataTypes.INTEGER, allowNull: false },
},
{ timestamps: false }
);
User.belongsToMany(Group, { through: UserGroup, foreignKey: 'userId', otherKey: 'groupId' });
Group.belongsToMany(User, {
through: UserGroup,
as: 'members',
foreignKey: 'groupId',
otherKey: 'userId',
});
// User <-> FriendRequest: One-to-Many
// A User can send many friend requests and receive many friend requests.
User.hasMany(FriendRequest, { as: 'sentRequests', foreignKey: 'fromUserId', onDelete: 'CASCADE' });
User.hasMany(FriendRequest, { as: 'receivedRequests', foreignKey: 'toUserId', onDelete: 'CASCADE' });
FriendRequest.belongsTo(User, { as: 'fromUser', foreignKey: 'fromUserId' });
FriendRequest.belongsTo(User, { as: 'toUser', foreignKey: 'toUserId' });
// Friendship is a direct link between two users.
// user1Id will always be less than user2Id to ensure uniqueness.
Friendship.belongsTo(User, { as: 'user1', foreignKey: 'user1Id' });
Friendship.belongsTo(User, { as: 'user2', foreignKey: 'user2Id' });
// User <-> FriendRequest: One-to-Many
// A User can send many friend requests and receive many friend requests.
User.hasMany(FriendRequest, {
as: 'sentRequests',
foreignKey: 'fromUserId',
onDelete: 'CASCADE',
});
User.hasMany(FriendRequest, {
as: 'receivedRequests',
foreignKey: 'toUserId',
onDelete: 'CASCADE',
});
FriendRequest.belongsTo(User, { as: 'fromUser', foreignKey: 'fromUserId' });
FriendRequest.belongsTo(User, { as: 'toUser', foreignKey: 'toUserId' });
};