app/helpers/user_helper.rb

   1 module UserHelper
   2   # User images
   3
   4   def user_image(user, options = {})
   5     options[:class] ||= "user_image"
   6
   7     if user.image_use_gravatar
   8       user_gravatar_tag(user, options)
   9     else
  10       image_tag user.image.url(:large), options
  11     end
  12   end
  13
  14   def user_thumbnail(user, options = {})
  15     options[:class] ||= "user_thumbnail"
  16
  17     if user.image_use_gravatar
  18       user_gravatar_tag(user, options)
  19     else
  20       image_tag user.image.url(:small), options
  21     end
  22   end
  23
  24   def user_thumbnail_tiny(user, options = {})
  25     options[:class] ||= "user_thumbnail_tiny"
  26
  27     if user.image_use_gravatar
  28       user_gravatar_tag(user, options)
  29     else
  30       image_tag user.image.url(:small), options
  31     end
  32   end
  33
  34   def user_image_url(user, options = {})
  35     if user.image_use_gravatar
  36       user_gravatar_url(user, options)
  37     else
  38       image_url(user.image.url)
  39     end
  40   end
  41
  42   # OpenID support
  43
  44   def openid_logo
  45     image_tag "openid_small.png", :alt => t('user.login.openid_logo_alt'), :class => "openid_logo"
  46   end
  47
  48   def openid_button(name, url)
  49     link_to(
  50       image_tag("#{name}.png", :alt => t("user.login.openid_providers.#{name}.alt")),
  51       "#",
  52       :class => "openid_button", :data => { :url => url },
  53       :title => t("user.login.openid_providers.#{name}.title")
  54     )
  55   end
  56
  57   # Gravatar support
  58
  59   # See http://en.gravatar.com/site/implement/images/ for details.
  60   def user_gravatar_url(user, options = {})
  61     size = options[:size] || 100
  62     hash = Digest::MD5::hexdigest(user.email.downcase)
  63     default_image_url = image_url("users/images/large.png")
  64     url = "#{request.protocol}www.gravatar.com/avatar/#{hash}.jpg?s=#{size}&d=#{u(default_image_url)}"
  65   end
  66
  67   def user_gravatar_tag(user, options = {})
  68     url = user_gravatar_url(user, options)
  69     options.delete(:size)
  70     image_tag url, options
  71   end
  72 end