Make antenna able to insert home

app/models/antenna.rb

@@ -29,7 +29,7 @@ class Antenna < ApplicationRecord
   has_many :antenna_accounts, inverse_of: :antenna, dependent: :destroy
 
   belongs_to :account
-  belongs_to :list
+  belongs_to :list, optional: true
 
   scope :all_keywords, -> { where(any_keywords: true) }
   scope :all_domains, -> { where(any_domains: true) }
@@ -40,7 +40,7 @@ class Antenna < ApplicationRecord
   validate :list_owner
 
   def list_owner
-    raise Mastodon::ValidationError, I18n.t('antennas.errors.invalid_list_owner') if list.account != account
+    raise Mastodon::ValidationError, I18n.t('antennas.errors.invalid_list_owner') if list.present? && list.account != account
   end
 
   def enabled?

app/services/fan_out_on_write_service.rb

@@ -118,6 +118,7 @@ class FanOutOnWriteService < BaseService
 
   def deliver_to_antennas!
     lists = []
+    homes = []
     tag_ids = @status.tags.pluck(:id)
     domain = @account.domain || Rails.configuration.x.local_domain
 
@@ -141,16 +142,28 @@ class FanOutOnWriteService < BaseService
         next if antenna.exclude_accounts&.include?(@status.account_id)
         next if antenna.exclude_domains&.include?(domain)
         next if antenna.exclude_tags&.any? { |tag_id| tag_ids.include?(tag_id) }
+
+        if antenna.list_id.zero?
+          homes << antenna.account_id
+        else
           lists << antenna.list_id
         end
       end
+    end
     lists = lists.uniq
+    homes = homes.uniq
 
     if lists.any?
       FeedInsertWorker.push_bulk(lists) do |list|
         [@status.id, list, 'list', { 'update' => update? }]
       end
     end
+
+    if homes.any?
+      FeedInsertWorker.push_bulk(homes) do |home|
+        [@status.id, home, 'home', { 'update' => update? }]
+      end
+    end
   end
 
   def deliver_to_mentioned_followers!

app/views/antennas/_antenna.html.haml

@@ -13,7 +13,7 @@
           = t('antennas.index.expires_in', distance: distance_of_time_in_words_to_now(antenna.expires_at))
 
   .listname
-    = antenna.list.title
+    = antenna.list&.title || '[Insert to Home]'
 
   .filters-list__item__permissions
     %ul.permissions-list

app/views/antennas/_antenna_fields.html.haml

@@ -9,7 +9,7 @@
 
 .fields-row
   .fields-group.fields-row__column.fields-row__column-6
-    = f.input :list, collection: lists, wrapper: :with_label, label_method: lambda { |list| list.title }, label: t('antennas.edit.list'), selected: f.object.list&.id, hint: false
+    = f.input :list, collection: lists, wrapper: :with_label, label_method: lambda { |list| list.title }, label: t('antennas.edit.list'), selected: f.object.list&.id, hint: false, include_blank: '[Insert to Home]'
   .fields-group.fields-row__column.fields-row__column-6
     = f.input :available, wrapper: :with_label, label: t('antennas.edit.available'), hint: false
 

db/migrate/20230509045358_change_antennas_list_to_nullable.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+class ChangeAntennasListToNullable < ActiveRecord::Migration[6.1]
+  def up
+    safety_assured do
+      remove_foreign_key :antennas, :lists
+    end
+  end
+
+  def down
+    safety_assured do
+      add_foreign_key :antennas, :lists
+    end
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2023_04_30_110057) do
+ActiveRecord::Schema.define(version: 2023_05_09_045358) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -1256,7 +1256,6 @@ ActiveRecord::Schema.define(version: 2023_04_30_110057) do
   add_foreign_key "antenna_tags", "antennas", on_delete: :cascade
   add_foreign_key "antenna_tags", "tags", on_delete: :cascade
   add_foreign_key "antennas", "accounts", on_delete: :cascade
-  add_foreign_key "antennas", "lists", on_delete: :cascade
   add_foreign_key "appeals", "account_warnings", on_delete: :cascade
   add_foreign_key "appeals", "accounts", column: "approved_by_account_id", on_delete: :nullify
   add_foreign_key "appeals", "accounts", column: "rejected_by_account_id", on_delete: :nullify