graph with number of assertions over time

app/controllers/projects_controller.rb

@@ -5,4 +5,19 @@ def show
 
   def choose
   end
+
+  def stats
+    must_be_in_project
+    @assertions = {}
+    @project.test_suites.each do |ts|
+      # IMPROVE: N+!, but it's stats, we can cache
+      data = @project.commits.order('committed_at DESC').limit(500).map do |commit|
+        number = TestSuiteRun.where(:commit_id => commit.id, :test_suite_id => ts.id).average(:assertions_count).to_i
+        number == 0 ? nil : number
+      end
+      data_with_index = []
+      data.compact.reverse.each_with_index { |d,i| data_with_index << [i,d] }
+      @assertions[ts.name] = {:label => ts.name, :data => data_with_index}
+    end
+  end
 end

app/views/common/_sidebar.html.haml

@@ -6,6 +6,7 @@
   %ul
     = menu_li "Project info", :controller => '/projects', :action => 'show'
     = menu_li "Latest commits", :controller => '/commits', :action => 'index', :project_name => @project.name
+    = menu_li "Statistics", :controller => '/projects', :action => 'stats', :project_name => @project.name
 
 
 

app/views/layouts/application.html.haml

@@ -4,6 +4,7 @@
   = javascript_include_tag "http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"
   = javascript_include_tag "jquery.simplemodal"
   = javascript_include_tag 'application.js'
+  = yield :head
 %body
 
   #header

app/views/projects/stats.html.haml

@@ -0,0 +1,55 @@
+- content_for :head do
+  = javascript_include_tag "jquery.flot"
+
+%h2 Stats
+
+%h3 Last 100 commits
+
+%h4 Number of assertions
+
+#choices{:style => "float: right;"}
+#placeholder{ :style => "width:600px;height:300px;"}
+
+
+:javascript
+  $(function () {
+
+   var datasets = #{@assertions.to_json};
+     // hard-code color indices to prevent them from shifting as
+    // countries are turned on/off
+    var i = 0;
+    $.each(datasets, function(key, val) {
+        val.color = i;
+        ++i;
+    });
+
+    // insert checkboxes
+    var choiceContainer = $("#choices");
+    $.each(datasets, function(key, val) {
+        choiceContainer.append('<br/><input type="checkbox" name="' + key +
+                               '" checked="checked" id="id' + key + '">' +
+                               '<label for="id' + key + '">'
+                                + val.label + '</label>');
+    });
+    choiceContainer.find("input").click(plotAccordingToChoices);
+
+
+    function plotAccordingToChoices() {
+        var data = [];
+
+        choiceContainer.find("input:checked").each(function () {
+            var key = $(this).attr("name");
+            if (key && datasets[key])
+                data.push(datasets[key]);
+        });
+
+        if (data.length > 0)
+            $.plot($("#placeholder"), data, {
+                yaxis: { min: 0 },
+                xaxis: { tickDecimals: 0 }
+            });
+    }
+
+    plotAccordingToChoices();
+  });
+