use Ecto.Migration
def change do
- create table(:conversations) do
+ create_if_not_exists table(:conversations) do
add(:ap_id, :string, null: false)
timestamps()
end
- create table(:conversation_participations) do
+ create_if_not_exists table(:conversation_participations) do
add(:user_id, references(:users, type: :uuid, on_delete: :delete_all))
add(:conversation_id, references(:conversations, on_delete: :delete_all))
add(:read, :boolean, default: false)
timestamps()
end
- create index(:conversation_participations, [:user_id])
- create index(:conversation_participations, [:conversation_id])
- create unique_index(:conversations, [:ap_id])
+ create_if_not_exists index(:conversation_participations, [:conversation_id])
+ create_if_not_exists unique_index(:conversation_participations, [:user_id, :conversation_id])
+ create_if_not_exists unique_index(:conversations, [:ap_id])
end
end