Adds gravatar_hash on user creation and specs

Signed-off-by: Akash Manohar J <akash@akash.im>

app/models/user.rb

@@ -2,6 +2,7 @@ class User < ActiveRecord::Base
 
   has_many :activities
   before_save :ensure_authentication_token
+  before_save :ensure_gravatar_hash
 
   # Include default devise modules. Others available are:
   # :token_authenticatable, :encryptable, :confirmable, :lockable, :timeoutable and :omniauthable
@@ -16,4 +17,8 @@ def bushido_extra_attributes(extra_attributes)
     self.email      = extra_attributes["email"]
   end
 
+  def ensure_gravatar_hash
+    self.gravatar_hash = Digest::MD5.hexdigest self.email
+  end
+
 end

db/migrate/20120322155347_add_gravatar_hash_to_users.rb

@@ -0,0 +1,6 @@
+class AddGravatarHashToUsers < ActiveRecord::Migration
+  def change
+    add_column :users, :gravatar_hash, :text
+
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20120306163143) do
+ActiveRecord::Schema.define(:version => 20120322155347) do
 
   create_table "activities", :force => true do |t|
     t.text     "content"
@@ -68,6 +68,7 @@
     t.string   "locale"
     t.datetime "created_at",                                            :null => false
     t.datetime "updated_at",                                            :null => false
+    t.text     "gravatar_hash"
   end
 
   add_index "users", ["authentication_token"], :name => "index_users_on_authentication_token", :unique => true

spec/models/user_spec.rb

@@ -7,8 +7,13 @@
     end
   end
 
-  it "user should have authentication token on creation" do
+  it "should have authentication token on creation" do
     @user = Factory :user
     @user.authentication_token.should_not be_nil
   end
+
+  it "should have gravatar hash on creation" do
+    @user = Factory :user
+    @user.gravatar_hash.should_not be_nil
+  end
 end