ruby-on-rails - Rails 新形式 -> 无

Question

任务模型只有一个字段:标题。

我制作了一个表单来添加一个只有一个字段的新任务:标题

但是在create方法中，我们可以看到title是用“test”填充的

但是在查询中，我们可以看到“nil”……有什么想法吗？

谢谢

Started POST "/tasks" for 127.0.0.1 at 2013-01-03 13:16:44 -0500
Processing by TasksController#create as HTML
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"iWaK1QX6VCyeUCueLrRNErJEtdm/ZNxg4d3LU0vKjnY=", "task"=>{"title"
=>"test"}, "commit"=>"Add a new task "}
   (0.1ms)  begin transaction
  SQL (0.9ms)  INSERT INTO "tasks" ("created_at", "title", "updated_at") VALUES (?, ?, ?)  [["created_at", Thu, 03  Jan 2013 18:16:44 UTC +00:00], ["title", nil], ["updated_at", Thu, 03 Jan 2013 18:16:44 UTC +00:00]]
   (0.8ms)  commit transaction
Redirected to http://0.0.0.0:3000/tasks
Completed 302 Found in 8ms (ActiveRecord: 1.8ms)

这里是创建方法

  def create
    @task = Task.new(params[:post])

    if @task.save
      redirect_to tasks_path, :notice => "Task successfully saved"  
    else
      render "new"
    end
  end

Answer 1

问题是您获取的是 post 而不是 task

@task = Task.new(params[:task])