0

我有一个使用 Paperclip 附加文件图片的图片模型。

class Picture < ActiveRecord::Base
    [...]
    has_attached_file :photography, styles: { thumb: '115x', gallery: '560x560' }
    [...]
end

与拇指样式对应的文件是完美的，但与画廊样式对应的文件始终为 560px 宽度。我想获得每个边最大为 560 像素的文件。

例如：原始尺寸 1000x800px => 画廊尺寸 560x468 原始尺寸 800x1000px => 画廊尺寸 700x560

回形针调试输出：

Started POST "/admin/pictures/create" for 127.0.0.1 at 2013-01-29 13:21:26 +0100
Processing by Admin::PicturesController#create as HTML
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"3mDW4HeWq3SV/KJ8ez09c+/Y1dNcCkqN+8uUUx5SnGk=", "picture"=>{"realization_id"=>"3",     "photography"=>#<ActionDispatch::Http::UploadedFile:0x007fe984776c10 @original_filename="IFFTS-37-2.jpeg", @content_type="image/jpeg",     @headers="Content-Disposition: form-data; name=\"picture[photography]\"; filename=\"IFFTS-37-2.jpeg\"\r\nContent-Type: image/jpeg\r\n",     @tempfile=#<File:/var/folders/gh/q_r38fpj4qv5t8ymtq713d_w0000gn/T/RackMultipart20130129-12408-a9zr3v>>, "name"=>"test", "active"=>"1"},     "_save"=>"Save"}
Command :: identify -format %wx%h '/var/folders/gh/q_r38fpj4qv5t8ymtq713d_w0000gn/T/IFFTS-37-220130129-12408-ssh5ja.jpeg[0]'
Command :: identify -format %m '/var/folders/gh/q_r38fpj4qv5t8ymtq713d_w0000gn/T/IFFTS-37-220130129-12408-ssh5ja.jpeg[0]'
Command :: identify -format %m '/var/folders/gh/q_r38fpj4qv5t8ymtq713d_w0000gn/T/IFFTS-37-220130129-12408-ssh5ja.jpeg[0]'
Command :: convert '/var/folders/gh/q_r38fpj4qv5t8ymtq713d_w0000gn/T/IFFTS-37-220130129-12408-ssh5ja.jpeg[0]' -auto-orient -resize "115"     '/var/folders/gh/q_r38fpj4qv5t8ymtq713d_w0000gn/T/IFFTS-37-220130129-12408-ssh5ja20130129-12408-1boh1t1'
Command :: file -b --mime '/var/folders/gh/q_r38fpj4qv5t8ymtq713d_w0000gn/T/IFFTS-37-220130129-12408-ssh5ja20130129-12408-1boh1t1'
Command :: identify -format %wx%h '/var/folders/gh/q_r38fpj4qv5t8ymtq713d_w0000gn/T/IFFTS-37-220130129-12408-ssh5ja.jpeg[0]'
Command :: identify -format %m '/var/folders/gh/q_r38fpj4qv5t8ymtq713d_w0000gn/T/IFFTS-37-220130129-12408-ssh5ja.jpeg[0]'
Command :: identify -format %m '/var/folders/gh/q_r38fpj4qv5t8ymtq713d_w0000gn/T/IFFTS-37-220130129-12408-ssh5ja.jpeg[0]'
Command :: convert '/var/folders/gh/q_r38fpj4qv5t8ymtq713d_w0000gn/T/IFFTS-37-220130129-12408-ssh5ja.jpeg[0]' -auto-orient -resize     "560x560" '/var/folders/gh/q_r38fpj4qv5t8ymtq713d_w0000gn/T/IFFTS-37-220130129-12408-ssh5ja20130129-12408-fqtxxs'
Command :: file -b --mime '/var/folders/gh/q_r38fpj4qv5t8ymtq713d_w0000gn/T/IFFTS-37-220130129-12408-ssh5ja20130129-12408-fqtxxs'

如果我在终端中运行相同的命令，一切正常：

convert picture.jpeg -auto-orient -resize 560x560 picture.jpeg

（Heroku 上的相同问题）

有任何想法吗 ？

4

2 回答 2

0

我建议您停止使用回形针，因为它很重并使用载波。它很轻。我最初使用回形针，然后切换到载波。部署非常简单。

于 2013-01-29T13:49:05.513 回答
0

尝试关注

has_attached_file :photography, styles: { thumb: '115x', gallery: '560x560>' }
于 2013-01-29T13:22:15.110 回答