我正在尝试创建一张新地图,但到目前为止还没有成功:
undefined local variable or method `f' for #<#<Class:0x007ff46c0b12c0>:0x007ff46d777ba8>
我正在使用回形针。新的页面形式:
<%= form_for @map, :url => maps_path, :html => { :multipart => true } do |form| %>
<% if @map.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(@map.errors.count, "error") %> prohibited this map from being saved:</h2>
<ul>
<% @map.errors.full_messages.each do |msg| %>
<li><%= msg %></li>
<% end %>
</ul>
</div>
<% end %>
<div class="field">
<%= f.label :carname %><br />
<%= f.text_field :carname %>
</div>
<%= form.file_field :map %>
<div class="field">
<%= f.label :criticalcomponentlocations %><br />
<%= f.text_area :criticalcomponentlocations %>
</div>
<div class="field">
<%= f.label :warnings %><br />
<%= f.text_area :warnings %>
</div>
<div class="field">
<%= f.label :additionalinfo %><br />
<%= f.text_area :additionalinfo %>
</div>
<div class="actions">
<%= f.submit %>
</div>
<% end %>