我正在为定制西装业务构建应用程序。该应用程序存储用户测量值，并为他们提供编辑这些测量值和任何订单开始的机会。编辑表单看起来很好，但如果我点击提交，我会得到＆＃34;未知操作 - 操作＆＃39;更新＆＃39;找不到MeasurementsController。＆＃34;但是，我在该控制器中有更新操作。出了什么问题？
控制器代码
class MeasurementsController < ApplicationController
def new
@measurement = Measurement.new
end
def index
@measurement = Measurement.find(params[:id])
end
def create
@measurement = Measurement.new(safe_params)
@measurement.user_id = current_user.id
@measurement.save
redirect_to measurements_path(id: @measurement.id)
end
def edit
@measurement = Measurement.find_by(user_id: current_user.id)
end
def udpate
@measurement = Measurement.find_by(user_id: current_user.id)
if @measurement.update_attributes(safe_params)
redirect_to new_order_path #to be changed later
else
redirect_to root_path #to be changed later
end
end
private
def safe_params
params.require(:measurement).permit(:shoulders, :sleeve, :chest, :stomach, :jacket_length, :front, :back, :waist, :hips, :crotch, :pants_length, :thigh, :knee, :ankle)
end
end
部分编辑表格
<%= form_for(@measurement, :id => @measurement.id) do |f| %>
<table>
<% @measurement.attributes.each do |name, value| %>
<tr>
<% if name != 'created_at' && name != 'id' && name != 'updated_at' && name != 'user_id' && name != 'order_id' %>
<td><%= f.label name, id: "measurement-label"%></td>
<td id="measurement-input"><%= f.number_field name, :step => 'any', class: "form-control" %></td>
<% end %>
</tr>
<% end %>
</table>
<%= f.submit "Submit", class: "btn btn-primary" %>
为表单生成的HTML
<div class="container">
</div>
<div class="container">
<h1></h1>
<h2>Would you like to update your measurements?</h2>
<form class="edit_measurement" id="edit_measurement_5" action="/measurements/5" accept-charset="UTF-8" method="post"><input name="utf8" type="hidden" value="✓"><input type="hidden" name="_method" value="patch"><input type="hidden" name="authenticity_token" value="IYs39JMpzNqLvQOVISsenOj1gy3QaPklIhvP0xVd2SCLHTw8FHjTi9iTlmK8R7xHsauu3Rvfh8QasvbVsbcBVw==">
<table>
<tbody><tr>
</tr>
<tr>
<td><label id="measurement-label" for="measurement_shoulders">Shoulders</label></td>
<td id="measurement-input"><input step="any" class="form-control" type="number" value="9.0" name="measurement[shoulders]" id="measurement_shoulders"></td>
</tr>
<tr>
<td><label id="measurement-label" for="measurement_sleeve">Sleeve</label></td>
<td id="measurement-input"><input step="any" class="form-control" type="number" value="9.0" name="measurement[sleeve]" id="measurement_sleeve"></td>
</tr>
<tr>
<td><label id="measurement-label" for="measurement_chest">Chest</label></td>
<td id="measurement-input"><input step="any" class="form-control" type="number" value="9.0" name="measurement[chest]" id="measurement_chest"></td>
</tr>
<tr>
<td><label id="measurement-label" for="measurement_stomach">Stomach</label></td>
<td id="measurement-input"><input step="any" class="form-control" type="number" value="9.0" name="measurement[stomach]" id="measurement_stomach"></td>
</tr>
<tr>
<td><label id="measurement-label" for="measurement_jacket_length">Jacket length</label></td>
<td id="measurement-input"><input step="any" class="form-control" type="number" value="9.0" name="measurement[jacket_length]" id="measurement_jacket_length"></td>
</tr>
<tr>
<td><label id="measurement-label" for="measurement_front">Front</label></td>
<td id="measurement-input"><input step="any" class="form-control" type="number" value="9.0" name="measurement[front]" id="measurement_front"></td>
</tr>
<tr>
<td><label id="measurement-label" for="measurement_back">Back</label></td>
<td id="measurement-input"><input step="any" class="form-control" type="number" value="9.0" name="measurement[back]" id="measurement_back"></td>
</tr>
<tr>
<td><label id="measurement-label" for="measurement_waist">Waist</label></td>
<td id="measurement-input"><input step="any" class="form-control" type="number" value="9.0" name="measurement[waist]" id="measurement_waist"></td>
</tr>
<tr>
<td><label id="measurement-label" for="measurement_hips">Hips</label></td>
<td id="measurement-input"><input step="any" class="form-control" type="number" value="9.0" name="measurement[hips]" id="measurement_hips"></td>
</tr>
<tr>
<td><label id="measurement-label" for="measurement_crotch">Crotch</label></td>
<td id="measurement-input"><input step="any" class="form-control" type="number" value="9.0" name="measurement[crotch]" id="measurement_crotch"></td>
</tr>
<tr>
<td><label id="measurement-label" for="measurement_pants_length">Pants length</label></td>
<td id="measurement-input"><input step="any" class="form-control" type="number" value="9.0" name="measurement[pants_length]" id="measurement_pants_length"></td>
</tr>
<tr>
<td><label id="measurement-label" for="measurement_thigh">Thigh</label></td>
<td id="measurement-input"><input step="any" class="form-control" type="number" value="9.0" name="measurement[thigh]" id="measurement_thigh"></td>
</tr>
<tr>
<td><label id="measurement-label" for="measurement_knee">Knee</label></td>
<td id="measurement-input"><input step="any" class="form-control" type="number" value="9.0" name="measurement[knee]" id="measurement_knee"></td>
</tr>
<tr>
<td><label id="measurement-label" for="measurement_ankle">Ankle</label></td>
<td id="measurement-input"><input step="any" class="form-control" type="number" value="9.0" name="measurement[ankle]" id="measurement_ankle"></td>
</tr>
<tr>
</tr>
<tr>
</tr>
<tr>
</tr>
<tr>
</tr>
</tbody></table>
<input type="submit" name="commit" value="Submit" class="btn btn-primary">
答案 0 :(得分：4)
查看您的方法update这是错误的：
而不是udpate更改为update。您的上述方法为udpate，udpate的方法不应为update。
上面的代码是（方法名称udpate错误）：
def udpate
@measurement = Measurement.find_by(user_id: current_user.id)
if @measurement.update_attributes(safe_params)
redirect_to new_order_path #to be changed later
else
redirect_to root_path #to be changed later
end
end
更改为：
def update
@measurement = Measurement.find_by(user_id: current_user.id)
if @measurement.update_attributes(safe_params)
redirect_to new_order_path #to be changed later
else
redirect_to root_path #to be changed later
end
end