Question

我已经在我的控制器中写了这个：

 def index
    @invoices = Invoice.paginate(:page => params[:page], :per_page => 3)
    @invoices = Invoice.all(:select=>"invoices.id, invoices.invoice_name, 
                                     invoices.invoice_number, invoices.invoice_date,
                                     invoices.invoice_sent, invoices.current_eta, 
                                     invoices.invoice_status, invoices.invoice_amount, 
                                     projects.project_name, clients.client_name, 
                                     companies.company_name, currencies.symbol as invoice_symbol", 

    :joins => "left outer join projects on invoices.project_id = projects.id
               left outer join clients on projects.client_id = projects.id
               left outer join currencies on currencies.id = projects.currency_id
               left outer join companies on clients.company_id = companies.id",
    :order =>"invoice_name desc")

    if @invoices.blank?
      flash[:notice] = "There are no Invoices defined. You can create them by clicking 'New Invoice'"
    end
    respond_to do |format|
      format.html # index.html.erb
      format.json { render json: @invoices }
    end
  end

在我的视图文件中，我写了这个：

  <div class="digg_pagination">
    <div clas="page_info">
      <%= page_entries_info @invoices %>
    </div>
    <%= will_paginate @invoices, :container => false %>
  </div>

但是我收到了这个错误：

NoMethodError in Invoices#index

Showing /home/icicle/work/code/invoiced/app/views/invoices/_list.html.erb where line #59 raised:

undefined method `total_pages' for #<Array:0xbdfb708>

Extracted source (around line #59):

56: </table>
57:   <div class="digg_pagination">
58:     <div clas="page_info">
59:       <%= page_entries_info @invoices %>
60:     </div>
61:     <%= will_paginate @invoices, :container => false %>
62:   </div>

我也尝试更改will_paginate gem的版本，但我仍然遇到同样的错误。有人可以帮助我吗？

Answer 1

重命名第二个实例变量或代替所有请使用paginate

    @invoices = Invoice.paginate(:select=>"invoices.id, invoices.invoice_name, 
                                 invoices.invoice_number, invoices.invoice_date,
                                 invoices.invoice_sent, invoices.current_eta, 
                                 invoices.invoice_status, invoices.invoice_amount, 
                                 projects.project_name, clients.client_name, 
                                 companies.company_name, currencies.symbol as invoice_symbol", 

:joins => "left outer join projects on invoices.project_id = projects.id
           left outer join clients on projects.client_id = projects.id
           left outer join currencies on currencies.id = projects.currency_id
           left outer join companies on clients.company_id = companies.id",
:order =>"invoice_name desc",:page => params[:page], :per_page => 3)

将分页中的NoMethodError

1 个答案: