ArgumentError in Posts#index after upgrading Rails

Question

在我从 Rails 5.1.6 切换到 5.2.0 之前，一切正常。现在，我在尝试使用索引页面上的 link_thumbnailer gem 加载帖子图像时收到此错误。

 ArgumentError in Posts#index Can't resolve image into URL: undefined method `to_model' for #<LinkThumbnailer::Models::Image:0x00007fd96d873ec8>
    Did you mean?  to_yaml 
  <div class="image"><%= link_to (image_tag LinkThumbnailer.generate(post.url).images.first, image_stats: false), post_path(post), class: "ui tiny circular centered image"  %></div>

Answer 1

你应该使用LinkThumbnailer.generate(post.url).images.first.src.to_s而不是LinkThumbnailer.generate(post.url).images.first