Project snippet moved to separate model

app/models/project_snippet.rb

+# == Schema Information
+#
+# Table name: snippets
+#
+#  id         :integer          not null, primary key
+#  title      :string(255)
+#  content    :text
+#  author_id  :integer          not null
+#  project_id :integer          not null
+#  created_at :datetime         not null
+#  updated_at :datetime         not null
+#  file_name  :string(255)
+#  expires_at :datetime
+#  type       :string(255)
+#  private    :boolean
+
+class ProjectSnippet < Snippet
+  belongs_to :project
+  belongs_to :author, class_name: "User"
+
+  validates :project, presence: true
+
+  # Scopes
+  scope :fresh, -> { order("created_at DESC") }
+  scope :non_expired, -> { where(["expires_at IS NULL OR expires_at > ?", Time.current]) }
+  scope :expired, -> { where(["expires_at IS NOT NULL AND expires_at < ?", Time.current]) }
+end

app/models/snippet.rb

@@ -11,21 +11,20 @@
 #  updated_at :datetime         not null
 #  file_name  :string(255)
 #  expires_at :datetime
-#
+#  type       :string(255)
+#  private    :boolean
 class Snippet < ActiveRecord::Base
   include Linguist::BlobHelper
   attr_accessible :title, :content, :file_name, :expires_at
-  belongs_to :project
   belongs_to :author, class_name: "User"
   has_many :notes, as: :noteable, dependent: :destroy
   delegate :name, :email, to: :author, prefix: true, allow_nil: true
   validates :author, presence: true
-  validates :project, presence: true
   validates :title, presence: true, length: { within: 0..255 }
   validates :file_name, presence: true, length: { within: 0..255 }
   validates :content, presence: true

db/migrate/20130324151736_add_type_to_snippets.rb

+class AddTypeToSnippets < ActiveRecord::Migration
+  def change
+    add_column :snippets, :type, :string
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
-ActiveRecord::Schema.define(:version => 20130323174317) do
+ActiveRecord::Schema.define(:version => 20130324151736) do
   create_table "events", :force => true do |t|
     t.string   "target_type"
@@ -191,6 +191,7 @@ ActiveRecord::Schema.define(:version => 20130323174317) do
     t.string   "file_name"
     t.datetime "expires_at"
     t.boolean  "private"
+    t.string   "type"
   end
   add_index "snippets", ["created_at"], :name => "index_snippets_on_created_at"

spec/models/project_snippet_spec.rb

+# == Schema Information
+#
+# Table name: snippets
+#
+#  id         :integer          not null, primary key
+#  title      :string(255)
+#  content    :text
+#  author_id  :integer          not null
+#  project_id :integer          not null
+#  created_at :datetime         not null
+#  updated_at :datetime         not null
+#  file_name  :string(255)
+#  expires_at :datetime
+#
+
+require 'spec_helper'
+
+describe ProjectSnippet do
+  describe "Associations" do
+    it { should belong_to(:project) }
+  end
+
+  describe "Mass assignment" do
+    it { should_not allow_mass_assignment_of(:project_id) }
+  end
+
+  describe "Validation" do
+    it { should validate_presence_of(:project) }
+  end
+end

spec/models/snippet_spec.rb

@@ -17,19 +17,16 @@ require 'spec_helper'
 describe Snippet do
   describe "Associations" do
-    it { should belong_to(:project) }
     it { should belong_to(:author).class_name('User') }
     it { should have_many(:notes).dependent(:destroy) }
   end
   describe "Mass assignment" do
     it { should_not allow_mass_assignment_of(:author_id) }
-    it { should_not allow_mass_assignment_of(:project_id) }
   end
   describe "Validation" do
     it { should validate_presence_of(:author) }
-    it { should validate_presence_of(:project) }
     it { should validate_presence_of(:title) }
     it { should ensure_length_of(:title).is_within(0..255) }