add folders structure

lib/accounts.rb

@@ -34,6 +34,7 @@ module Accounts
     new_template = Template.find(1).dup
     new_template.account_id = account.id
     new_template.slug = SecureRandom.base58(14)
+    new_template.folder = account.default_template_folder
 
     new_template.save!
 

lib/template_folders.rb

@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+module TemplateFolders
+  module_function
+
+  def search(folders, keyword)
+    return folders if keyword.blank?
+
+    folders.where(TemplateFolder.arel_table[:name].lower.matches("%#{keyword.downcase}%"))
+  end
+
+  def find_or_create_by_name(author, name)
+    return author.account.default_template_folder if name.blank? || name == TemplateFolder::DEFAULT_NAME
+
+    author.account.template_folders.create_with(author:, account: author.account).find_or_create_by(name:)
+  end
+end