Module: JavyTool::Utils

Defined in:
lib/javy_tool/utils.rb

Class Method Summary collapse

Class Method Details

.android?(req) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/javy_tool/utils.rb', line 29

def android?(req)
  !!(/(Android)\s+([\d.]+)/ =~ req)
end

.h2o(ahash) ⇒ Object

translate a Hash object to a OpenStruct object parameter: ahash => Hash return: a OpenStruct object



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# File 'lib/javy_tool/utils.rb', line 51

def h2o( ahash )
  return ahash unless Hash === ahash
  OpenStruct.new( Hash[ *ahash.inject( [] ) { |a, (k, v)| a.push(k, h2o(v)) } ] )
end

.ios?(req) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/javy_tool/utils.rb', line 38

def ios?(req)
  ipad?(req) || iphone?(req)
end

.ipad?(req) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/javy_tool/utils.rb', line 32

def ipad?(req)
  !!(/(iPad).*OS\s([\d_]+)/ =~ req)
end

.iphone?(req) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/javy_tool/utils.rb', line 35

def iphone?(req)
  !ipad?(req) && !!(/(iPhone\sOS)\s([\d_]+)|iTunes-iPhone|iTunes-iPod/ =~ req)
end

.lottery(*args) ⇒ Object

用于抽奖 传入代表中奖概率的数组如 1,10,20,30,40 返回数组的索引 真实场景 奖项数组 prize_arr =[ [‘id’=>1,‘prize’=>‘平板电脑’,‘v’=>1], [‘id’=>2,‘prize’=>‘数码相机’,‘v’=>5], [‘id’=>3,‘prize’=>‘音箱设备’,‘v’=>10], [‘id’=>4,‘prize’=>‘4G优盘’,‘v’=>12], [‘id’=>5,‘prize’=>‘10Q币’,‘v’=>22], [‘id’=>6,‘prize’=>‘下次没准就能中哦’,‘v’=>50], ]

传给loggery的数组应为 1,5,10,12,22,50 返回的索引值即代表奖品的索引值



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# File 'lib/javy_tool/utils.rb', line 93

def lottery(*args)
  args.extract_options!
  total = args.inject{|sum,item|sum+=item}

  args.flatten.each_with_index do |item,index|
    rand_num = rand(1..total)#.tap{|it|puts ".#{item}.#{index}..#{it}.#{total}-------"}
    if rand_num <= item
     return index
    else
      total -= item
    end
  end
end

.touchpad?(req) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/javy_tool/utils.rb', line 44

def touchpad?(req)
  webos?(req) && !!(/TouchPad/ =~ req)
end

.truncate_o(text, length = 16) ⇒ Object

truncate string and chinese is two chars



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# File 'lib/javy_tool/utils.rb', line 70

def truncate_o(text,length=16)
  text = Iconv.conv("gb2312","utf8",text)[0,length]
  Iconv.conv("utf8","gb2312",text)
end

.truncate_u(text, length = 30, truncate_string = "...") ⇒ Object

truncate string with utf-8 encoding



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# File 'lib/javy_tool/utils.rb', line 57

def truncate_u(text, length = 30, truncate_string = "...")
  l=0
  char_array=text.unpack("U*")
  char_array.each_with_index do |c,i|
    l = l+ (c<127 ? 0.5 : 1)
    if l>=length
      return char_array[0..i].pack("U*")+(i<char_array.length-1 ? truncate_string : "")
    end
  end
  return text
end

.upload_file(file, path = nil) ⇒ Object

upload file,default to /tmp return filename



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# File 'lib/javy_tool/utils.rb', line 109

def upload_file(file,path=nil)
  path ||= JavyTool.options[:upload_path]
  unless file.original_filename.empty?
    filename = if block_given?
      yield file.original_filename
    else
      Time.now.strftime("%Y%m%d%H%M%S") + rand(10000).to_s + File.extname(file.original_filename)
    end
    File.open(path+filename, "wb") { |f| f.write(file.read) }
    filename
  end
end

.webkit?(req) ⇒ Boolean

judge user agent

Returns:

  • (Boolean) 


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# File 'lib/javy_tool/utils.rb', line 26

def webkit?(req)
  !!(/WebKit\/([\d.]+)/ =~ req)
end

.webos?(req) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/javy_tool/utils.rb', line 41

def webos?(req)
  !!(/(webOS|hpwOS)[\s\/]([\d.]+)/ =~ req)
end

.which_os(req) ⇒ Object

get user agent



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# File 'lib/javy_tool/utils.rb', line 8

def which_os(req)
  case req
  when /(Android)\s+([\d.]+)/
    "android"
  when /(iPad).*OS\s([\d_]+)|iTunes-iPad/
    "ipad"
  when /(iPhone\sOS)\s([\d_]+)|iTunes-iPhone|iTunes-iPod/
    "iphone"
  when /TouchPad/
    "touchpad"
  when /(webOS|hpwOS)[\s\/]([\d.]+)/
    "webos"
  when /WebKit\/([\d.]+)/
    "webkit"
  end
end