51 lines
1.5 KiB
Elixir
51 lines
1.5 KiB
Elixir
defmodule Pleroma.Repo.Migrations.DropChatTables do
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use Ecto.Migration
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def up do
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# Automatically drops associated indices and constraints
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drop table(:chat_message_references)
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drop table(:chats)
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end
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def down do
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# Ecto's default primary key is bigserial, thus configure manually
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create table(:chats, primary_key: false) do
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add(:id, :uuid, primary_key: true, autogenerated: true)
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add(
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:user_id,
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references(:users, type: :uuid, on_delete: :delete_all)
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# yes, this was nullable
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)
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add(
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:recipient,
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references(:users, column: :ap_id, type: :string, on_delete: :delete_all)
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# yes, this was nullable
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)
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timestamps()
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end
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create(index(:chats, [:user_id, :recipient], unique: true))
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create table(:chat_message_references, primary_key: false) do
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add(:id, :uuid, primary_key: true, autogenerated: true)
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add(:chat_id, references(:chats, type: :uuid, on_delete: :delete_all), null: false)
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add(:object_id, references(:objects, on_delete: :delete_all), null: false)
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add(:unread, :boolean, default: true, null: false)
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timestamps()
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end
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create(index(:chat_message_references, [:chat_id, "id desc"]))
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create(unique_index(:chat_message_references, [:object_id, :chat_id]))
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create(
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index(:chat_message_references, [:chat_id],
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where: "unread = true",
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name: "unread_messages_count_index"
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)
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)
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end
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end
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