Task status model + default task status generation

app/jobs/project_post_init_job.rb

@@ -1,18 +0,0 @@
-# frozen_string_literal: true
-
-class ProjectPostInitJob < ApplicationJob
-  queue_as :default
-
-  def perform(project_id)
-    project = Project.preparing.find(project_id)
-
-    create_tasks_number_sequence(project)
-    project.update!(status: :ready)
-  end
-
-  private
-
-  def create_tasks_number_sequence(project)
-    Project.connection.execute "CREATE SEQUENCE IF NOT EXISTS #{project.tasks_number_sequence_name} AS INT UNSIGNED"
-  end
-end

app/jobs/projects/post_init_job.rb

@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+module Projects
+  class PostInitJob < ApplicationJob
+    queue_as :default
+
+    include Projects::CreateDefaultTaskStatuses
+
+    def perform(project_id)
+      project = Project.preparing.find(project_id)
+
+      project.transaction do
+        create_tasks_number_sequence(project)
+        create_default_task_statuses(project)
+        project.update!(status: :ready)
+      end
+    end
+
+    private
+
+    def create_tasks_number_sequence(project)
+      Project.connection.execute "CREATE SEQUENCE IF NOT EXISTS #{project.tasks_number_sequence_name} AS INT UNSIGNED"
+    end
+  end
+end

app/models/project.rb

@@ -1,12 +1,13 @@
 # frozen_string_literal: true
 
 class Project < ApplicationRecord
-  enum :status, %i[preparing ready archived].index_by(&:itself), default: :preparing
+  enum :status, %w[preparing ready archived].index_by(&:itself), default: :preparing
 
   validates :name, :code, presence: true
   validates :code, exclusion: { in: %w[new] }, uniqueness: true, format: { with: /\A[a-z]{2,}\z/ }
 
   has_many :tasks, dependent: :restrict_with_exception
+  has_many :task_statuses, dependent: :destroy
 
   has_rich_text :description
 
@@ -35,7 +36,7 @@ class Project < ApplicationRecord
   private
 
   def schedule_post_init_job
-    ProjectPostInitJob.perform_later id
+    Projects::PostInitJob.perform_later id
   end
 
   def drop_tasks_number_sequence

app/models/task_status.rb

@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+class TaskStatus < ApplicationRecord
+  belongs_to :project
+
+  enum :category, { backlog: 100, analysis: 1000, development: 20_000, fulfillment: 60_000 }
+
+  validates :name, presence: true, uniqueness: { scope: :project }
+  validates :category, presence: true
+end