Question

在我的Rails 3.2.13应用程序中，有一个导入联系页面，我们可以通过csv导入联系人，如果缺少任何字段或映射，我们可以手动映射标题。为此，他们使用了map_fields插件，其中大部分代码都是公开的 - ＆gt;插件文件夹。现在，当我尝试在4.2.6应用程序中运行相同时，这是我面临的错误：

LoadError - 无法加载此类文件 - map_fields：activesupport （4.2.6）lib / active_support / dependencies.rb：274：在block in require' activesupport (4.2.6) lib/active_support/dependencies.rb:238:in块中在load_dependency'activesupport（4.2.6）中 lib / active_support / dependencies.rb：647：in new_constants_in' activesupport (4.2.6) lib/active_support/dependencies.rb:238:in load_dependency'activesupport（4.2.6） lib / active_support / dependencies.rb：274：在require' app/controllers/contacts_controller.rb:2:in'中 app / controllers / contacts_controller.rb：1：在<top (required)>' activesupport (4.2.6) lib/active_support/dependencies.rb:457:in块中在load_file'activesupport（4.2.6）中 lib / active_support / dependencies.rb：647：in new_constants_in' activesupport (4.2.6) lib/active_support/dependencies.rb:456:in load_file'activesupport（4.2.6） lib / active_support / dependencies.rb：354：in require_or_load' activesupport (4.2.6) lib/active_support/dependencies.rb:494:in load_missing_constant'activesupport（4.2.6） lib / active_support / dependencies.rb：184：在`const_missing'
中

这是我的控制者：

class ContactsController < ApplicationController
  require 'map_fields'
  map_fields :mapper, ['First Name','Last Name', 'Email', 'Notes'], :file_field => :file, :params => [:contact]

  def create
    @user = User.find(params[:user_id])
    @contact = @user.contacts.create(contact_params)
    respond_to do |format|
      if @contact.save
        format.json { render :json => { :notice => 'Contact was successfully created!',:redirect => user_contacts_url} }
        format.html { redirect_to(user_contacts_url(@user), :notice => 'Contact was successfully created!', :type => 'success') }
       else
        format.json { render :json => {:redirect => false} }
        format.html { render :action => "edit" }
      end
    end
  end
  def import
    @contact = Contact.new 
  end
    def mapper
    @contact = Contact.new(params[:contact])
    count = 0

    if fields_mapped?
      mapped_fields.each do |row|
        params[:contact] = {"user_id" => @current_user.id, "firstname" => row[0], "lastname" => row[1], "notes" => row[3], "email" => row[2].try(:strip)}
        contact = Contact.new(params[:contact])

        if contact.save
          count = count + 1
        end
      end

      if count > 0
        flash[:notice] = "#{count} Contact(s) created"
        redirect_to :action => :index
      else 
        flash[:notice] = "No contact was created..." 
        redirect_to :action => :index
      end

    else
      @best_row = @rows[1]
      render
    end

    rescue MapFields::InconsistentStateError
      flash[:error] = 'Please try again'
      redirect_to :action => :import
    rescue MapFields::MissingFileContentsError
      flash[:error] = 'Please upload a file'
      redirect_to :action => :import
  end

end

除此之外，我有联系人/ import.html.erb：

<%= semantic_form_for :contact, :url => mapper_user_contacts_path do |f| %>
   <%= f.inputs :name => 'Please select a CSV file to upload' do %>
     <%= f.input :file, :label => false, :as => :file, :input_html => {:name => "file", :id => "file"} %>
   <% end %>
   <%= f.buttons do %>
     <%= f.commit_button raw('Import contacts') %>
   <% end %> 
 <% end %>

和app / views / contacts / mapper.html.erb：

<%= render :partial => 'map_fields/map_fields' %>

以上呈现字段位于供应商中 - ＆gt;插件 - ＆gt; map_fields文件夹。

请帮助我如何克服错误？是否从插件文件夹中呈现数据？

无法加载此类文件 - map_fields

0 个答案: