working form

app/models/author.rb

@@ -0,0 +1,11 @@
+class Author < ApplicationRecord
+
+  has_many :proverbs
+
+  validates :name, presence: true
+  validates :unique_id, presence: true, uniqueness: true
+
+  def identify_uniquely
+    self.unique_id = name.to_s.downcase.gsub(/[\W\s]/,'')
+  end
+end

app/models/proverb.rb

@@ -0,0 +1,40 @@
+class Proverb < ApplicationRecord
+
+  belongs_to :author
+  belongs_to :user
+
+  before_validation :setup_ownership
+
+  attr_writer :author_name, :user_email
+
+  def author_name
+    author.try(:name) || @author_name
+  end
+
+  def user_email
+    user.try(:email) || @user_email
+  end
+
+  private
+
+  def setup_ownership
+    if author
+      author.update_attributes(name: author_name)
+    else
+      self.author = Author.new(name: author_name)
+      author.identify_uniquely
+      author.save
+    end
+
+    if user
+      user.update_attributes(email: user_email.downcase)
+    else
+      self.user = User.create(email: user_email.downcase)
+    end
+  end
+
+  def attributes
+    super.merge(author_name: author_name, user_email: user_email)
+  end
+
+end

app/models/user.rb

@@ -0,0 +1,6 @@
+class User < ApplicationRecord
+  has_many :proverbs
+
+  validates :email, presence: true, uniqueness: true
+  
+end