我写了一个 rake 任务,从维基百科下载一张给定名人名字的图像,但由于某种原因,在 S3 上存储时,文件扩展名要么被删除,要么被更改为 .txt
否则该文件是正确的。
有任何想法吗?
来自我的名人模特:
has_attached_file :pic,
:styles => { :medium => "300x300>", :thumb => "100x100>" },
:default_style => :medium,
:storage => :s3,
:s3_credentials => "#{Rails.root}/config/s3.yml",
:path => "/:style/:img_name.:extension"
从我的 rake 任务中:
desc "Update celeb pics from wiki"
task :update_celeb_pics => [:environment] do
include ApplicationHelper
Celeb.all.each do |celeb|
if !celeb.name.start_with?("(")
puts celeb.name
celeb.pic = open(getImage(celeb.name))
celeb.save
end
end
end
getImage 方法是一个返回字符串的助手
require 'open-uri'
require 'uri'
module ApplicationHelper
def getInfo(name)
Nokogiri::XML(open(URI.escape("http://en.wikipedia.org/w/api.php?action=opensearch&search=#{name}&limit=1&namespace=0&format=xml")))
end
def nokoPage(name)
Nokogiri::XML(open(getURL(name)))
end
def getImage(name)
"http:" + nokoPage(name).css("table img")[0].attribute("src").value if !nokoPage(name).css("table img").empty?
end
def getDescription(name)
getInfo(name).css("Description").text
end
def getURL(name)
getInfo(name).css("Url").text
end
def getBday(name)
bday = nokoPage(name).css("span.bday")
return Date.parse(bday[0].text) if !bday.empty?
return Date.today
end
def getDday(name)
dday = nokoPage(name).css("span.dday")
return Date.parse(dday[0].text) if !dday.empty?
end
end