Add target_user field to anonymous blocks

app/models/anonymous_block.rb

@@ -5,6 +5,7 @@ require "digest"
 class AnonymousBlock < ApplicationRecord
   belongs_to :user, optional: true
   belongs_to :question, optional: true
+  belongs_to :target_user, class_name: "User", optional: true
 
   def self.get_identifier(ip)
     Digest::SHA2.new(512).hexdigest(Rails.application.secret_key_base + ip)

db/migrate/20221227002012_add_target_user_to_anonymous_blocks.rb

@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+class AddTargetUserToAnonymousBlocks < ActiveRecord::Migration[6.1]
+  def change
+    add_reference :anonymous_blocks, :target_user, null: true, foreign_key: { to_table: :users }
+  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: 2022_11_16_201723) do
+ActiveRecord::Schema.define(version: 2022_12_27_002012) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -28,13 +28,15 @@ ActiveRecord::Schema.define(version: 2022_11_16_201723) do
   end
 
   create_table "anonymous_blocks", force: :cascade do |t|
+    t.bigint "user_id"
     t.string "identifier"
+    t.bigint "question_id", null: false
     t.datetime "created_at", precision: 6, null: false
     t.datetime "updated_at", precision: 6, null: false
-    t.bigint "user_id"
-    t.bigint "question_id"
+    t.bigint "target_user_id"
     t.index ["identifier"], name: "index_anonymous_blocks_on_identifier"
     t.index ["question_id"], name: "index_anonymous_blocks_on_question_id"
+    t.index ["target_user_id"], name: "index_anonymous_blocks_on_target_user_id"
     t.index ["user_id"], name: "index_anonymous_blocks_on_user_id"
   end