Rails: 将axlsx视图生成的文件发送到模型

Question

我正在使用 axlsx gem 生成 excel 电子表格。我正在尝试将生成的电子表格发送到模型进行压缩。此方法将 excel 文件与其他一些文件一起压缩。

我的模型中的方法如下所示：

def zipper
  tempfile = Tempfile.new
  children = self.children_with_forms

   Zip::OutputStream.open(tempfile) do |stream|
    children.each do |child|
      directory = "#{child.wide_reference[0,3]}/"

      if child.model_name == "Position"
        stream.put_next_entry("#{child.volume} #{child.title} TOC.xlsx")
        stream.print IO.read(Rails.application.routes.url_helpers.toc_path(format: :xlsx, position_id: child.id))
      end

      stream.put_next_entry("#{directory}#{child.wide_reference}-#{child.short_name}-#{child.title.truncate(15, omission:'')}.docx")
      stream.print IO.read(child.download_form.path)
    end  
  end

  tempfile
end

我遇到问题的部分是：

  if child.model_name == "Position"
    stream.put_next_entry("#{child.volume} #{child.title} TOC.xlsx")
    stream.print IO.read(Rails.application.routes.url_helpers.toc_path(format: :xlsx, position_id: child.id))
  end

如何将生成的文件导入到模型中？

Answer 1

我最终不得不使用以下方法从模型内部渲染视图：ActionView::Base.new(ActionController::Base.view_paths, {key: value})，感谢我收到的帮助 here。

下面是最终起作用的。

def download
  tempfile = Tempfile.new
  children = self.children_with_forms
   Zip::OutputStream.open(tempfile) do |stream|
    children.each do |child|
      directory = "#{child.wide_reference[0,3]}/"
      if child.model_name == "Position"
        av = ActionView::Base.new(ActionController::Base.view_paths, {position: child, model: child.model})
        stream.put_next_entry("#{directory}#{child.volume} #{child.title} TOC.xlsx")
        @position = child
        @model = child.model
        stream.print av.render template: 'pages/toc.xlsx.axlsx'
      end
      stream.put_next_entry("#{directory}#{child.wide_reference} #{child.title.truncate(15, omission:'')} (#{child.short_name}).docx")
      stream.print IO.read(child.download_form.path)
    end
    stream.put_next_entry("Excel File.xlsx")
    av = ActionView::Base.new(ActionController::Base.view_paths, {model: self})
    stream.print av.render template: 'pages/excel_file.xlsx.axlsx'
  end
  tempfile
end

注意： "Model" 是此方法所在的 class 的名称。

Rails: 将axlsx视图生成的文件发送到模型

Rails: Send a file generated by an axlsx view to a model

ruby

ruby-on-rails

axlsx