Question

我正在尝试为搜索结果添加csv，但是它会提示错误，提示不允许的参数。我应该在csv链接中传递哪些参数？这样，csv才能下载唯一的搜索结果。

ReportsController

def revenue_search
  @bookings = Booking.complete.order("created_at DESC")
  date = "1-#{params['date']['month']}-#{params['date']['year']}"
  date = Date.parse(date)
  @bookings = @bookings.where(created_at: date.beginning_of_month..date.end_of_month)
  @per_page = params[:per_page] || Booking.per_page || 20
  @bookings = @bookings.paginate( :per_page => @per_page, :page => params[:page])
  if params[:currency].present?
    @bookings = @bookings.where(currency: params[:currency])
  end
  respond_to do |format|
    format.html
    format.csv { send_data @bookings.revenue_csv }
  end
end

型号

def self.revenue_csv
  attributes = %w{ total value deposit balance }
  CSV.generate(headers: true) do |csv|
   csv << attributes
   all.each do |booking|
    csv << attributes.map{ |attr| booking.send(attr) }
   end
 end
end

revenue.html.erb

<%= form_tag revenue_search_path, :method => 'get' do %>
   <%= select_tag(:currency, options_for_select(["USD", "GBP"]), class: "form-control custom-select" , :prompt => 'By Office' ) %>
   <%= select_month((@selected_date || Date.today), {}, class:"custom-select", :prompt => 'By Month')%>
   <%= select_year((@selected_year || Date.today.year), {},  class:"custom-select" )%>
   <%= submit_tag "Search", name: nil , class: "btn btn-info" %>
<% end %>

<table id="demo-foo-addrow" class="table m-t-30 table-hover no-wrap contact-list no-paging footable-loaded footable" data-page-size="2">
   <thead>
     <tr>
       <th class="footable-sortable">Total No of students<span class="footable-sort-indicator"></span></th>
       <th class="footable-sortable">Value of courses sold<span class="footable-sort-indicator"></span></th>
       <th class="footable-sortable">Total Deposits<span class="footable-sort-indicator"></span></th>
       <th class="footable-sortable">Balance payments<span class="footable-sort-indicator"></span></th>
      </tr>
     </thead>
    <tbody>
     <tr>
        <td><%= @bookings.count %></td>
        <td><%= @bookings.count %></td>
        <td><%= @bookings.sum{|x| (x.payment_gross.to_f)} %></td>
        <td><%= @bookings.sum{|x| (x.course&.course_fee || x.event&.course_fee).to_f - x.payment_gross.to_f  }.to_f %></td>
    </tr>
   </tbody>         
</table>
<p> Download: <%= link_to "CSV",  revenue_search_path(format: "csv" , params: params ) %> </p>

日志：

ActionView::Template::Error (unable to convert unpermitted parameters to hash):
42:         </div>
43:     </div>
44: </div>
45: <p> Download: <%= link_to "CSV",  revenue_search_path(format: "csv" , params: params ) %> </p>

app/views/reports/revenue_search.html.erb:45:in `_app_views_reports_revenue_search_html_erb___71501213_135144540'

Answer 1

您可以使用to_unsafe_h

revenue_search_path(format: "csv" , params: params.to_unsafe_h)

无法将不允许的参数转换为哈希轨

1 个答案: