Question

我想将.xlsx tempfile从表单传递给导入模型。但是，我遇到了ActiveModel::ForbiddenAttributesError。我正确地定义了强参数，但是在处理没有属性的类的虚拟列时可能存在特殊性。

模型逻辑在指向本地文件路径时起作用，因此我将大部分内容留下。这是我的代码：

new.html.erb

<%= form_for @package_import do |f| %>
  <%= f.file_field :file %>
  <%= f.submit "Import" %>
<% end %>

package_imports_controller.rb

class PackageImportsController < ApplicationController
  def new
    @package_import = PackageImport.new
  end

  def create
    @package_import = PackageImport.new(params[:package_import])
    if @package_import.save
      redirect_to root_url, notice: "Imported packages"
    else
      render :new
    end
  end

private

    def package_import_params
        params.require(:package_import).permit(:file)
    end

end

package_import.rb

class PackageImport 
include ActiveModel::Model 
...
end

Answer 1

您需要在params[:package_import]方法的package_import_params中将@package_import = PackageImport.new(params[:package_import])更改为create。

def create
  @package_import = PackageImport.new(package_import_params)

  if @package_import.save
    redirect_to root_url, notice: "Imported packages"
  else
    render :new
  end
end

没有属性的类中虚拟列上的ActiveModel :: ForbiddenAttributesError

1 个答案: