project package deadline limit

app/services/project_packages/save_service.rb

@@ -15,6 +15,8 @@ class ProjectPackages::SaveService
     raise Error, '类型不存在' unless ProjectPackageCategory.where(id: params[:category_id]).exists?
     params[:project_package_category_id] = params[:category_id].to_i
 
+    raise Error, '竞标截止时间不能小于当前时间' if params[:deadline_at].present? && params[:deadline_at].to_time < Time.now
+
     ActiveRecord::Base.transaction do
       package.assign_attributes(params)
       package.save!