Glyph helper. Use as <%= glyph('icon') %>

Uses glyphicons library.

One may add also custom icon association in the GLYPHS constant.
If a class is passed to the helper, it is underscored
before being searched in the GLYPHS.

app/controllers/application_controller.rb

@@ -1,5 +1,6 @@
 class ApplicationController < ActionController::Base
   protect_from_forgery
+  helper :glyph
 
   # before_filter :intercept_html_requests
   helper_method :current_user, :current_organization, :admin?, :superadmin?

app/helpers/application_helper.rb

@@ -3,10 +3,7 @@ module ApplicationHelper
   # froom http://railscasts.com/episodes/244-gravatar?language=en&view=asciicast
   def avatar_url(user, size=32)
     gravatar_id = Digest::MD5::hexdigest(user.email).downcase
-    gravatar_options = Hash[
-      s: size,
-      d: 'identicon'
-    ]
+    gravatar_options = Hash[s: size, d: 'identicon']
     "http://gravatar.com/avatar/#{gravatar_id}.png?#{Rack::Utils.build_query(gravatar_options)}"
   end
 

app/helpers/glyph_helper.rb

@@ -0,0 +1,17 @@
+module GlyphHelper
+
+  GLYPHS = Hash[
+    "offer" => "hand-up",
+    "inquiry" => "belt",
+    "user" => "user",
+    "tag" => "tag",
+    "category" => "folder-open",
+    "organization" => "tower"
+  ]
+
+  def glyph(kind)
+    kind = kind.to_s.underscore
+    content_tag :span, "", class: "glyphicon glyphicon-#{GLYPHS.fetch kind, kind}"
+  end
+
+end

app/views/offers/index.html.haml

@@ -3,11 +3,11 @@
   = Offer.model_name.human(count: :many)
   - if @category.present?
     %small
-      %span.glyphicon.glyphicon-folder-open
+      = glyph(Category)
       = @category.name
   - if params[:q].present?
     %small
-      %span.glyphicon.glyphicon-search
+      = glyph(:search)
       = params[:q]