Merge branch 'feature/object-hashtags-rework' into 'develop'

Hashtags extraction from objects. Background migration infrastructure.

Closes #1840 and #2455

See merge request pleroma/pleroma!3213

priv/repo/migrations/20190711042021_create_safe_jsonb_set.exs

@@ -9,7 +9,7 @@ defmodule Pleroma.Repo.Migrations.CreateSafeJsonbSet do
     begin
       result := jsonb_set(target, path, coalesce(new_value, 'null'::jsonb), create_missing);
       if result is NULL then
-        raise 'jsonb_set tried to wipe the object, please report this incindent to Pleroma bug tracker. https://git.pleroma.social/pleroma/pleroma/issues/new';
+        raise 'jsonb_set tried to wipe the object, please report this incident to Pleroma bug tracker. https://git.pleroma.social/pleroma/pleroma/issues/new';
         return target;
       else
         return result;

priv/repo/migrations/20201221202251_create_hashtags.exs

@@ -0,0 +1,13 @@
+defmodule Pleroma.Repo.Migrations.CreateHashtags do
+  use Ecto.Migration
+
+  def change do
+    create_if_not_exists table(:hashtags) do
+      add(:name, :citext, null: false)
+
+      timestamps()
+    end
+
+    create_if_not_exists(unique_index(:hashtags, [:name]))
+  end
+end

priv/repo/migrations/20201221202252_remove_data_from_hashtags.exs

@@ -0,0 +1,15 @@
+defmodule Pleroma.Repo.Migrations.RemoveDataFromHashtags do
+  use Ecto.Migration
+
+  def up do
+    alter table(:hashtags) do
+      remove_if_exists(:data, :map)
+    end
+  end
+
+  def down do
+    alter table(:hashtags) do
+      add_if_not_exists(:data, :map, default: %{})
+    end
+  end
+end

priv/repo/migrations/20201221203824_create_hashtags_objects.exs

@@ -0,0 +1,13 @@
+defmodule Pleroma.Repo.Migrations.CreateHashtagsObjects do
+  use Ecto.Migration
+
+  def change do
+    create_if_not_exists table(:hashtags_objects, primary_key: false) do
+      add(:hashtag_id, references(:hashtags), null: false, primary_key: true)
+      add(:object_id, references(:objects), null: false, primary_key: true)
+    end
+
+    # Note: PK index: "hashtags_objects_pkey" PRIMARY KEY, btree (hashtag_id, object_id)
+    create_if_not_exists(index(:hashtags_objects, [:object_id]))
+  end
+end

priv/repo/migrations/20210105195018_create_data_migrations.exs

@@ -0,0 +1,17 @@
+defmodule Pleroma.Repo.Migrations.CreateDataMigrations do
+  use Ecto.Migration
+
+  def change do
+    create_if_not_exists table(:data_migrations) do
+      add(:name, :string, null: false)
+      add(:state, :integer, default: 1)
+      add(:feature_lock, :boolean, default: false)
+      add(:params, :map, default: %{})
+      add(:data, :map, default: %{})
+
+      timestamps()
+    end
+
+    create_if_not_exists(unique_index(:data_migrations, [:name]))
+  end
+end

priv/repo/migrations/20210106183301_data_migration_create_populate_hashtags_table.exs

@@ -0,0 +1,16 @@
+defmodule Pleroma.Repo.Migrations.DataMigrationCreatePopulateHashtagsTable do
+  use Ecto.Migration
+
+  def up do
+    dt = NaiveDateTime.utc_now()
+
+    execute(
+      "INSERT INTO data_migrations(name, inserted_at, updated_at) " <>
+        "VALUES ('populate_hashtags_table', '#{dt}', '#{dt}') ON CONFLICT DO NOTHING;"
+    )
+  end
+
+  def down do
+    execute("DELETE FROM data_migrations WHERE name = 'populate_hashtags_table';")
+  end
+end

priv/repo/migrations/20210111172254_create_data_migration_failed_ids.exs

@@ -0,0 +1,14 @@
+defmodule Pleroma.Repo.Migrations.CreateDataMigrationFailedIds do
+  use Ecto.Migration
+
+  def change do
+    create_if_not_exists table(:data_migration_failed_ids, primary_key: false) do
+      add(:data_migration_id, references(:data_migrations), null: false, primary_key: true)
+      add(:record_id, :bigint, null: false, primary_key: true)
+    end
+
+    create_if_not_exists(
+      unique_index(:data_migration_failed_ids, [:data_migration_id, :record_id])
+    )
+  end
+end

priv/repo/migrations/20210222183840_remove_hashtags_objects_duplicate_index.exs

@@ -0,0 +1,11 @@
+defmodule Pleroma.Repo.Migrations.RemoveHashtagsObjectsDuplicateIndex do
+  use Ecto.Migration
+
+  @moduledoc "Removes `hashtags_objects_hashtag_id_object_id_index` index (duplicate of PK index)."
+
+  def up do
+    drop_if_exists(unique_index(:hashtags_objects, [:hashtag_id, :object_id]))
+  end
+
+  def down, do: nil
+end

priv/repo/migrations/20210222184616_change_hashtags_name_to_text.exs

@@ -0,0 +1,15 @@
+defmodule Pleroma.Repo.Migrations.ChangeHashtagsNameToText do
+  use Ecto.Migration
+
+  def up do
+    alter table(:hashtags) do
+      modify(:name, :text)
+    end
+  end
+
+  def down do
+    alter table(:hashtags) do
+      modify(:name, :citext)
+    end
+  end
+end