2 files changed, 38 insertions, 0 deletions

@@ -3,6 +3,8 @@ class Blog < ApplicationRecord
 
   acts_as_taggable
 
+  has_many :comments
+
   validates :title, presence: true
   validates :body, presence: true, if: :published
   validates :slug, presence: true, format: /\A[-a-z0-9]+\z/, if: :published
@@ -0,0 +1,36 @@
+class Comment < ApplicationRecord
+  extend Enumerize
+
+  belongs_to :blog
+
+  validates :body, presence: true
+  validates :username, presence: true
+  validates :email, presence: true, format: URI::MailTo::EMAIL_REGEXP
+
+  scope :published_and_ordered, -> { where(status: :published).order(published_at: :asc) }
+
+  enumerize :status,
+    in: [:published, :pending, :rejected],
+    default: :published,
+    predicates: true
+
+  before_save :set_published_at
+
+  def gravatar_url
+    hash = Digest::MD5.hexdigest(email)
+    "https://www.gravatar.com/avatar/#{hash}?size=40&default=identicon&rating=g"
+  end
+
+  private
+
+    def set_published_at
+      if self.published?
+        if self.published_at.blank?
+          self.published_at = DateTime.now
+        end
+      else
+        self.published_at = nil
+      end
+    end
+
+end