如何在導入csv時解決NameError問題

Question

我在導入csv文件時遇到了問題。我的錯誤是「Employee_attendances＃index中的NameError」。

模型

class EmployeeAttendance < ActiveRecord::Base 
    attr_accessible :date, :emp_id, :in_time, :out_time, :status 



    def self.import(file) 
      CSV.foreach(file.path, headers: true) do |row| 
      @employee_attendance = EmployeeAttendance.find_by_emp_id_and_date(row['employee_id'],row['date'].to_date.strftime("%Y-%m-%d")) || EmployeeAttendance.new 
      @employee_attendance.emp_id    = row['emp_id'] 
      @employee_attendance.in_time    = row['in_time'] 
      @employee_attendance.out_time    = row['out_time'] 
      @employee_attendance.status    = row['status'] 
      @employee_attendance.date     = row['date'] 
      @employee_attendance.save! 
     end 
    end 

end 

在控制器

class EmployeeAttendancesController < ApplicationController 

def index 
end 

def new 
end 

def create 
end 

def import 
    EmployeeAttendance.import(params[:file]) 
    redirect_to EmployeeAttendance_path, notice: "Sucessfully Created." 
    end 
end 

鑑於（index.html.erb）

<% if flash[:notice].present? %> 
    <div class="alert alert-success"> 
     <button type="button" class="close" data-dismiss="alert">&times;</button> 
     <%= flash[:notice] %> 
    </div> 
<% end %> 
<div> 
    <h2>Employee Attendance</h2> 
</div> 
<%= form_tag import_employee_attendance_index_path, multipart: true do %> 
<%= file_field_tag :file %> 
    <%= submit_tag "Import", :class => 'btn btn-primary' %> 
<% end %> 

它表示如「未定義的局部變量或方法`import_employee_attendance_index_path」錯誤＃<＃：0xb30a8c88>「

Answer 1

添加到您的路徑文件：

resources :employee_attendances do 
    collection do 
    post 'import' 
    end 
end 

or this：

resources :employee_attendances do 
    post 'import', on: :collection 
end 

和這觀點：

<%= form_tag import_employee_attendances_path, multipart: true do %> 

感謝

Answer 2

我猜你沒有爲方法import添加routes，添加以下你routes.rb

resources :employee_attendances do 
    post 'import' 
end 

重新啓動服務器，然後下面一行

<%= form_tag import_employee_attendance_path, multipart: true do %>