在Wicked_pdf中使用Activestorage映像

发布于 2025-02-01 12:43:13 字数 562 浏览 5 评论 0原文

我无法获得激活图像来生产。我想在我生成的PDF主体内使用调整大小的图像（变体）。

= image_tag(@post.image.variant(resize_to_limit: [150, 100]))

它在开发中起作用，但是在生产生产中，PDF无限期地挂起，除非我将这条线排除在外。

我已经尝试了@post.image.variant（resize_to_limit：[150，100]）。processed.url和设置rails.application.default_url_options = {主机： “}

具有讽刺意味的是，当我重新启动乘客时，它将PDF发送到浏览器，实际上看起来不错。包括图像。

这是类似的：

= wicked_pdf_image_tag(@post.image.variant(resize_to_limit: [150, 100]).processed.url)

Rails 7.0.3，Ruby 3.1.2，Wicked_pdf 2.6.3

原文

I can't get ActiveStorage images to work in production. I want to use a resized image (variant) within the body of the PDF I'm generating.

= image_tag(@post.image.variant(resize_to_limit: [150, 100]))

It worked in development but in production generating the PDF hangs indefinitely unless I take that line out.

I've tried things like @post.image.variant(resize_to_limit: [150, 100]).processed.url and setting Rails.application.default_url_options = { host: "example.com" }

Ironically when I restart Passenger it sends the PDF to the browser and it actually looks fine. The image is included.

This is similar:

= wicked_pdf_image_tag(@post.image.variant(resize_to_limit: [150, 100]).processed.url)

Rails 7.0.3, Ruby 3.1.2, wicked_pdf 2.6.3

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酒浓于脸红 2025-02-08 12:43:13

多亏了@unixmonkey，我添加了passenger_min_instances 3;到我的服务器块中的NGINX配置中，它最初起作用，但会在负载下悬挂乘客。由于我没有提高该数字时投掷的RAM，因此我根据文件的读取图像提出了另一种解决方案。

= image_tag(active_storage_to_base64_image(@post.image.variant(resize_to_limit: [150, 100])))

然后，我在application_helper.rb中创建了一个助手，

def active_storage_to_base64_image(image)
  require "base64"
  file = File.open(ActiveStorage::Blob.service.path_for(image.processed.key))
  base64 = Base64.encode64(file.read).gsub(/\s+/, '')
  file.close
  "data:image/png;base64,#{Rack::Utils.escape(base64)}"
end

我将其硬编码为PNG文件，因为这就是我所需要的。仅适用于磁盘存储。欢迎改进

Thanks to @Unixmonkey I added passenger_min_instances 3; to my server block in Nginx config and it worked initially but would hang Passenger under load. Since I didn't have the RAM to throw at increasing that number I came up with a different solution based on reading images from file.

= image_tag(active_storage_to_base64_image(@post.image.variant(resize_to_limit: [150, 100])))

Then I created a helper in application_helper.rb

def active_storage_to_base64_image(image)
  require "base64"
  file = File.open(ActiveStorage::Blob.service.path_for(image.processed.key))
  base64 = Base64.encode64(file.read).gsub(/\s+/, '')
  file.close
  "data:image/png;base64,#{Rack::Utils.escape(base64)}"
end

I've hard coded it for PNG files as that's all I needed. Only works for Disk storage. Would welcome improvements

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