fix: update invite_code error

app/models/project.rb

@@ -119,7 +119,8 @@ class Project < ApplicationRecord
   has_many :pinned_projects, dependent: :destroy 
   has_many :has_pinned_users, through: :pinned_projects, source: :user
 
-  after_save :check_project_members, :reset_cache_data, :set_invite_code
+  after_save :check_project_members, :reset_cache_data
+  before_save :set_invite_code
   after_destroy :reset_cache_data
   scope :project_statics_select, -> {select(:id,:name, :is_public, :identifier, :status, :project_type, :user_id, :forked_count, :visits, :project_category_id, :project_language_id, :license_id, :ignore_id, :watchers_count, :created_on)}
   scope :no_anomory_projects, -> {where("projects.user_id is not null and projects.user_id != ?", 2)}
@@ -139,7 +140,7 @@ class Project < ApplicationRecord
 
   def set_invite_code
     if self.invite_code.nil?
-      self.update(invite_code: self.generate_dcode('invite_code', 6))
+      self.invite_code= self.generate_dcode('invite_code', 6)
     end
   end