Add notification model

app/models/bubble.rb

@@ -4,6 +4,8 @@ class Bubble < ApplicationRecord
   belongs_to :bucket, touch: true
   belongs_to :creator, class_name: "User", default: -> { Current.user }
 
+  has_many :notifications, dependent: :destroy
+
   has_one_attached :image, dependent: :purge_later
 
   before_save :set_default_title

app/models/notification.rb

@@ -0,0 +1,7 @@
+class Notification < ApplicationRecord
+  belongs_to :user
+  belongs_to :bubble
+
+  scope :unread, -> { where.not(:read) }
+  scope :ordered, -> { order(created_at: :desc) }
+end

app/models/user.rb

@@ -18,6 +18,8 @@ class User < ApplicationRecord
   has_many :assignings, foreign_key: :assigner_id, class_name: "Assignment"
   has_many :assigned_bubbles, through: :assignments, source: :bubble
 
+  has_many :notifications, dependent: :destroy
+
   has_one_attached :avatar
 
   validates_presence_of :email_address

db/migrate/20250109153649_create_notifications.rb

@@ -0,0 +1,14 @@
+class CreateNotifications < ActiveRecord::Migration[8.1]
+  def change
+    create_table :notifications do |t|
+      t.references :user, null: false, foreign_key: true
+      t.references :bubble, null: false, foreign_key: true
+      t.boolean :read, default: false, null: false
+      t.text :body, null: false
+
+      t.timestamps
+
+      t.index %i[ user_id read created_at ], order: { created_at: :desc }
+    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[8.1].define(version: 2024_12_09_223551) do
+ActiveRecord::Schema[8.1].define(version: 2025_01_09_153649) do
   create_table "accesses", force: :cascade do |t|
     t.integer "bucket_id", null: false
     t.integer "user_id", null: false
@@ -176,6 +176,18 @@ ActiveRecord::Schema[8.1].define(version: 2024_12_09_223551) do
     t.index ["messageable_type", "messageable_id"], name: "index_messages_on_messageable", unique: true
   end
 
+  create_table "notifications", force: :cascade do |t|
+    t.integer "user_id", null: false
+    t.integer "bubble_id", null: false
+    t.boolean "read", default: false, null: false
+    t.text "body", null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.index ["bubble_id"], name: "index_notifications_on_bubble_id"
+    t.index ["user_id", "read", "created_at"], name: "index_notifications_on_user_id_and_read_and_created_at", order: { created_at: :desc }
+    t.index ["user_id"], name: "index_notifications_on_user_id"
+  end
+
   create_table "pops", force: :cascade do |t|
     t.integer "bubble_id", null: false
     t.integer "user_id"
@@ -244,6 +256,8 @@ ActiveRecord::Schema[8.1].define(version: 2024_12_09_223551) do
   add_foreign_key "bubbles", "workflow_stages", column: "stage_id"
   add_foreign_key "events", "event_summaries", column: "summary_id"
   add_foreign_key "messages", "bubbles"
+  add_foreign_key "notifications", "bubbles"
+  add_foreign_key "notifications", "users"
   add_foreign_key "pops", "bubbles"
   add_foreign_key "pops", "users"
   add_foreign_key "sessions", "users"

test/models/notification_test.rb

@@ -0,0 +1,7 @@
+require "test_helper"
+
+class NotificationTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end