https://ruby-china.org/luoluo en-us <p>我先执行了<code>rails new myapp</code> <code>rails generate scafflod ticket name:string</code> <code>rake db:migrate</code> 这是执行<code>rails server</code>可以正常访问并创建对象。 现在我想增加 ticket 的项目，执行<code>rails generate migration AddEmailToTickets email:string</code> <code>rake db:migrate</code> 修改 view 目录下的访问文件，在访问时，却出现了一下的错误：</p> <blockquote> <p>ActiveModel::MassAssignmentSecurity::Error in TicketsController#create</p> <p>Can't mass-assign protected attributes: email Rails.root: /home/lo/try/rails/ff</p> <p>Application Trace | Framework Trace | Full Trace app/controllers/tickets_controller.rb:43:in `new' app/controllers/tickets_controller.rb:43:in `create' Request</p> <p>Parameters:</p> <p>{"utf8"=&gt;"✓", "authenticity_token"=&gt;"xFsJUy4zWJbLU3jxOaimoJHc8D0e8pR2N88RS5DEo1E=", "ticket"=&gt;{"name"=&gt;"asf", "address"=&gt;"af", "price"=&gt;"2323", "email"=&gt;"wqer"}, "commit"=&gt;"Create Ticket"} Show session dump</p> <p>Show env dump</p> <p>Response</p> <p>Headers:</p> </blockquote> <p>总是无法访问，不知是不是数据迁移没有成功还是怎么的，求解？</p> luoluo Thu, 21 Mar 2013 12:42:24 +0800 https://ruby-china.org/topics/9640 https://ruby-china.org/topics/9640