目的：實現透過前段網頁提交並保存一個一個company對象，這個對像只有一個字段，那就是name.

但是提交時保存卻說：找不到lname方法！ controller保存時並沒有設計lname方法，也不知道為什麼會回報這個錯誤。

2天了，沒弄清楚。

下面是報錯：

NoMethodError in CompaniesController#create
undefined method `lname' for #

Extracted source (around line #23):

21 def create
22 @company = Company.new(params[:company].permit(:name))
23 @company.save
24 redirect_to @company
25 end

Rails.root:

Application Trace | Framework Trace | Full Trace
app/controllers/companies_controller.rb:23:in `create'
Request

Parameters:

{"utf8"=>"✓",
"authenticity_token"=>"3DISc2IKH23W5KUHORMza5NHm9eMq35KDdbrbus6LqDXNVGVku0vsI2QyJ2LopGD1TlMgR>Dwid* 1"},
"commit"=>"Create Company"}

<h1>New Company</h1>

<%= form_for(@company) do |f| %>
    <p>
        <%= f.label :name %>
        <%= f.text_field :name %>
    </p>
    <p>
        <%= f.submit "Create Company" %>
    </p>
<% end %>


<% content_for :aside do %>
    <% render 'sidebar' %>
<% end %>

def create
    @company = Company.new(params[:company].permit(:name))
    @company.save
    redirect_to @company
  end