Move shortcode setting to before_save on Party model

app/controllers/api/v1/parties_controller.rb

@@ -8,12 +8,7 @@ module Api
       before_action :set, only: %w[update destroy]
 
       def create
-        party = Party.new(shortcode: random_string)
-        party.user = current_user if current_user
-
-        if party_params
-          party.attributes = party_params
-        end
+        party = Party.new(party_params.merge(user: current_user))
 
         # unless party_params.empty?
         #   party.attributes = party_params
@@ -125,12 +120,6 @@ module Api
         end
       end
 
-      def random_string
-        num_chars = 6
-        o = [('a'..'z'), ('A'..'Z'), (0..9)].map(&:to_a).flatten
-        (0...num_chars).map { o[rand(o.length)] }.join
-      end
-
       def set_from_slug
         @party = Party.where('shortcode = ?', params[:id]).first
         @party.favorited = current_user && @party ? @party.is_favorited(current_user) : false

app/models/party.rb

@@ -43,6 +43,7 @@ class Party < ApplicationRecord
 
   has_many :favorites
 
+  before_save :set_shortcode
   ##### ActiveRecord Validations
   validate :skills_are_unique
 
@@ -58,6 +59,16 @@ class Party < ApplicationRecord
 
   private
 
+  def set_shortcode
+    self.shortcode = random_string
+  end
+
+  def random_string
+    num_chars = 6
+    o = [('a'..'z'), ('A'..'Z'), (0..9)].map(&:to_a).flatten
+    (0...num_chars).map { o[rand(o.length)] }.join
+  end
+
   def skills_are_unique
     skills = [skill0, skill1, skill2, skill3].compact