How can I populate tenant in user_group - With put assoc only user_id and group_id are getting auto updated in the join table (user_group) - How can I also include tenant_id
users =
User
|> tenant_filter(tenant)
|> where([u], u.id in ^user_ids)
|> Repo.all()
group
|> cast(%{}, [])
|> put_assoc(:users, users)
schema "users_groups" do
belongs_to :tenant, Tenant
belongs_to :user, User
belongs_to :group, Group
timestamps()
end
It is not a many 2 many, it’s a has many & has many through, because the join table contains specific attributes (tenant_id). So You should treat the join table as an independant schema, and use it to join the 3 tables.
The way I think it should be implemented to have a separate schema for user and group. Also you will have migration for both. So you can create another schema and migration for user_group and there you can store the foreign key for both. This way you can use many-to-many relationship. Later if you want to add a tenant_id there I think you can do that.
