Count +1 votes in issue notes.

app/models/issue.rb

@@ -45,6 +45,11 @@ class Issue < ActiveRecord::Base
   def new?
     today? && created_at == updated_at
   end
+
+  # Return the number of +1 comments (upvotes)
+  def upvotes
+    notes.select(&:upvote?).size
+  end
 end
 # == Schema Information
 #

app/models/note.rb

@@ -87,6 +87,12 @@ class Note < ActiveRecord::Base
   rescue
     nil
   end
+
+  # Returns true if this is an upvote note,
+  # otherwise false is returned
+  def upvote?
+    note =~ /^\+1/ ? true : false
+  end
 end
 # == Schema Information
 #

app/views/issues/_show.html.haml

@@ -14,6 +14,8 @@
       %span.label.important critical
     - if issue.today?
       %span.label.success today
+    - if issue.upvotes > 0
+      %span.label.success= "+#{issue.upvotes}"
 
 
 

app/views/issues/show.html.haml

@@ -36,6 +36,9 @@
     = image_tag gravatar_icon(@issue.assignee_email), :width => 16, :class => "lil_av"
     %strong.author= link_to_issue_assignee(@issue)
 
+    - if @issue.upvotes > 0
+      %span.label.success= "+#{@issue.upvotes}"
+      
     %hr
     
   %div= simple_format @issue.title

spec/models/issue_spec.rb

@@ -24,6 +24,37 @@ describe Issue do
                       :assignee => Factory(:user),
                       :project => Factory.create(:project)).should be_valid }
 
+  describe "plus 1" do
+    let(:project) { Factory(:project) }
+    subject {
+      Factory.create(:issue,
+                     :author => Factory(:user),
+                     :assignee => Factory(:user),
+                     :project => project)
+    }
+
+    it "with no notes has a 0/0 score" do
+      subject.upvotes.should == 0
+    end
+
+    it "should recognize non-+1 notes" do
+      subject.notes << Factory(:note, note: "No +1 here", project: Factory(:project, path: 'plusone', code: 'plusone'))
+      subject.should have(1).note
+      subject.notes.first.upvote?.should be_false
+      subject.upvotes.should == 0
+    end
+
+    it "should recognize a single +1 note" do
+      subject.notes << Factory(:note, note: "+1 This is awesome", project: Factory(:project, path: 'plusone', code: 'plusone'))
+      subject.upvotes.should == 1
+    end
+
+    it "should recognize a multiple +1 notes" do
+      subject.notes << Factory(:note, note: "+1 This is awesome", project: Factory(:project, path: 'plusone', code: 'plusone'))
+      subject.notes << Factory(:note, note: "+1 I want this", project: Factory(:project, path: 'plustwo', code: 'plustwo'))
+      subject.upvotes.should == 2
+    end
+  end
 end
 # == Schema Information
 #

spec/models/note_spec.rb

@@ -21,6 +21,25 @@ describe Note do
     end
   end
 
+  describe "Voting score" do
+    let(:project) { Factory(:project) }
+
+    it "recognizes a neutral note" do
+      note = Factory(:note, project: project, note: "This is not a +1 note")
+      note.should_not be_upvote
+    end
+
+    it "recognizes a +1 note" do
+      note = Factory(:note, project: project, note: "+1 for this")
+      note.should be_upvote
+    end
+
+    it "recognizes a -1 note as no vote" do
+      note = Factory(:note, project: project, note: "-1 for this")
+      note.should_not be_upvote
+    end
+  end
+
   describe "Commit notes" do
 
     before do