change bug

app/models/project.rb

@@ -13,10 +13,8 @@ class Project < ApplicationRecord
   belongs_to :ignore, optional: true
   belongs_to :license, optional: true
   belongs_to :owner, class_name: 'User', foreign_key: :user_id
-  # belongs_to :project_category, optional: true , :counter_cache => true
-  # belongs_to :project_language, optional: true , :counter_cache => true
-  belongs_to :project_category, optional: true 
-  belongs_to :project_language, optional: true 
+  belongs_to :project_category, optional: true , :counter_cache => true
+  belongs_to :project_language, optional: true , :counter_cache => true
   has_many :project_trends, dependent: :destroy
   has_many :watchers, as: :watchable, dependent: :destroy
   has_many :fork_users, dependent: :destroy

db/migrate/20200525021613_add_index_for_project_language_and_category.rb

@@ -17,17 +17,5 @@ class AddIndexForProjectLanguageAndCategory < ActiveRecord::Migration[5.2]
       puts "#######____update_project_language_id____##############{k}"
       ProjectLanguage.update_counters(k, projects_count: v)
     end
-
-    # project_categories = ProjectCategory.select(:id, :projects_count).includes(:projects)
-    # project_categories.each do |i| 
-    #   puts "#######____update_project_category_id____##############{i.id}"
-    #   ProjectCategory.reset_counters(i.id, :projects)
-    # end
-
-    # project_languages = ProjectLanguage.select(:id, :projects_count).includes(:projects)
-    # project_languages.each do |i| 
-    #   puts "#######____update_project_language_id____##############{i.id}"
-    #   ProjectLanguage.reset_counters(i.id, :projects)
-    # end
   end
 end

db/migrate/20200525054200_change_project_category_language_id_default.rb

@@ -0,0 +1,6 @@
+class ChangeProjectCategoryLanguageIdDefault < ActiveRecord::Migration[5.2]
+  def change
+    execute "ALTER TABLE project_languages MODIFY COLUMN id INT AUTO_INCREMENT;"
+    execute "ALTER TABLE project_categories MODIFY COLUMN id INT AUTO_INCREMENT;"
+  end
+end