Question

导入csv文件时，我收到错误：“没有将Symbol隐式转换为Integer”。添加导入照片时出错。

广告模式

require 'csv'
require 'open-uri'

class Advert < ActiveRecord::Base
  has_many :photos, dependent: :destroy

private
    def self.import(file)
      CSV.foreach(file.path, col_sep: '||') do |row|
        Advert.create!( :title              => row[0],
                        :content            => row[1],
                        :photos_attributes  => {
                            :image => row[2],
                        }
                      )
      end
    end
end

照片模特

class Photo < ActiveRecord::Base
  belongs_to :advert

  validates :image, presence: true

  validates_associated :advert

  mount_uploader :image, ImageUploader

end

广告控制器中的

def advert_params
  params.require(:advert).permit(
    :title,
    :content,
    photos_attributes: [:id, :advert_id, :image_cache, :image, :_destroy]
  )
end

CSV

my title 1||my content 1||https://www.google.ru/images/branding/googlelogo/1x/googlelogo_color_272x92dp.png
my title 2||my content 2||
my title 3||my content 3||https://www.google.ru/images/branding/googlelogo/1x/googlelogo_color_272x92dp.png
my title 4||my content 4||
my title 5||my content 5||https://www.google.ru/images/branding/googlelogo/1x/googlelogo_color_272x92dp.png

微量

TypeError (no implicit conversion of Symbol into Integer): app/models/advert.rb:299:in block in import' app/models/advert.rb:298:in import' app/controllers/admin/adverts_controller.rb:39:in import'

UPD。从csv中删除标头。

从csv导入图像时，没有将符号隐式转换为整数错误

0 个答案: