Question

我试图用carrierwave播种图片。在查看了一些问题，包括this之后，我尝试过：

c1 = Category.create(
  name: "About Us",
  page_title: "12 Years of Tradition",
  page_description: "long description here",
  page_content: "a lot of content here",
  link_to_subcategory: "Meet the Robinson's",
  banner_image: open("RF_web_about_us_1.jpg"),
  main_image: open("RF_web_about_us_2.jpg"),
  home_page_content: "content here"
  )

不幸的是，当我运行rake db：seed

时出现以下错误

rake aborted!
Errno::ENOENT: No such file or directory - RF_web_about_us_1.jpg

图像（RF_web_about_us_1.jpg）存储在app / assets / images中。对此有任何帮助将非常感激。

Answer 1

另一种方法：

Rails.root.join("app/assets/images/RF_web_about_us_1.jpg").open

所以你的create语句如下：

c1 = Category.create(
  name: "About Us",
  page_title: "12 Years of Tradition",
  page_description: "long description here",
  page_content: "a lot of content here",
  link_to_subcategory: "Meet the Robinson's",
  banner_image: Rails.root.join("app/assets/images/RF_web_about_us_1.jpg").open,
  main_image: Rails.root.join("app/assets/images/RF_web_about_us_2.jpg").open,
  home_page_content: "content here"
)

参考：https://github.com/carrierwaveuploader/carrierwave/wiki/How-to:-%22Upload%22-from-a-local-file

Answer 2

您必须指定图像的完整路径：

File.open（Rails.root +＆＃34; app / assets / images / RF_web_about_us_1.jpg＆＃34;）

Rails 4 - 使用carrierwave从硬盘驱动器播种图像

2 个答案: