fix: system notification edit error

app/controllers/admins/system_notifications_controller.rb

@@ -33,7 +33,6 @@ class Admins::SystemNotificationsController < Admins::BaseController
   end
 
   def update 
-    
     respond_to do |format|
       if @notification.update_attributes(notification_params)
         format.html do 

app/models/system_notification.rb

@@ -5,7 +5,8 @@
 #  id          :integer          not null, primary key
 #  subject     :string(255)
 #  sub_subject :string(255)
-#  content     :string(255)
+#  content     :text(65535)
+#  is_top      :boolean
 #  created_at  :datetime         not null
 #  updated_at  :datetime         not null
 #

app/views/admins/system_notifications/_form.html.erb

@@ -1,6 +1,6 @@
 <div class="box search-form-container project-list-form">
-  <div style="line-height: 38px;" class="flex-1"><%= type == "create" ? "新建" : "编辑" %>忽略文件</div>
-  <%= link_to "返回", admins_project_ignores_path, class: "btn btn-default pull-right" %>
+  <div style="line-height: 38px;" class="flex-1"><%= type == "create" ? "新建" : "编辑" %>系统通知</div>
+  <%= link_to "返回", admins_system_notifications_path, class: "btn btn-default pull-right" %>
 </div>
 
 <div class="box">

app/views/admins/system_notifications/edit.js.erb

@@ -1,2 +1,2 @@
-$("#admins-system-notification-content").html("<%= j render(partial: 'admins/system_notifications/form', locals: {type: 'create'}) %>")
+$("#admins-system-notification-content").html("<%= j render(partial: 'admins/system_notifications/form', locals: {type: 'update'}) %>")
 createMDEditor('system-notification-content-editor', { height: 500, placeholder: '请输入邮件模版' });

db/migrate/20211013090556_change_system_notification_content_column.rb

@@ -0,0 +1,5 @@
+class ChangeSystemNotificationContentColumn < ActiveRecord::Migration[5.2]
+  def change
+    change_column :system_notifications, :content, :text
+  end
+end