created Redistat::Summary object

lib/redistat.rb

@@ -12,6 +12,7 @@ require "redistat/key"
 require "redistat/label"
 require "redistat/model"
 require "redistat/scope"
+require "redistat/summary"
 
 module Redistat
   

lib/redistat/summary.rb

@@ -0,0 +1,29 @@
+module Redistat
+  class Summary
+    include Database
+    extend Database
+    
+    def self.update_all(key, stats = {}, depth_limit = nil)
+      stats ||= {}
+      depth_limit ||= key.depth
+      return false if stats.size == 0
+      depths.each do |depth|
+        update(key, stats, depth)
+        break if depth == depth_limit
+      end
+    end
+    
+    private
+    
+    def self.update(key, stats, depth)
+      stats.each do |field, value|
+        db.hincrby key.to_s(depth), field, value
+      end
+    end
+    
+    def self.depths
+      [:year, :month, :day, :hour, :min, :sec, :usec]
+    end
+    
+  end
+end

spec/summary_spec.rb

@@ -0,0 +1,54 @@
+require "spec_helper"
+
+describe Redistat::Label do
+  
+  before(:each) do
+    db.flushdb
+    @scope = "PageViews"
+    @label = "about_us"
+    @date = Time.now
+    @key = Redistat::Key.new(@scope, @label, @date, {:depth => :day})
+    @stats = {"views" => 3, "visitors" => 2}
+  end
+  
+  it "should update a single summary properly" do
+    Redistat::Summary.update(@key, @stats, :hour)
+    summary = db.hgetall(@key.to_s(:hour))
+    summary.should have(2).items
+    summary["views"].should == "3"
+    summary["visitors"].should == "2"
+    
+    Redistat::Summary.update(@key, @stats, :hour)
+    summary = db.hgetall(@key.to_s(:hour))
+    summary.should have(2).items
+    summary["views"].should == "6"
+    summary["visitors"].should == "4"
+    
+    Redistat::Summary.update(@key, {"views" => -4, "visitors" => -3}, :hour)
+    summary = db.hgetall(@key.to_s(:hour))
+    summary.should have(2).items
+    summary["views"].should == "2"
+    summary["visitors"].should == "1"
+  end
+  
+  it "should update all summaries properly" do
+    Redistat::Summary.update_all(@key, @stats, :sec)
+    [:year, :month, :day, :hour, :min, :sec, :usec].each do |depth|
+      summary = db.hgetall(@key.to_s(depth))
+      if depth != :usec
+        summary.should have(2).items
+        summary["views"].should == "3"
+        summary["visitors"].should == "2"
+      else
+        summary.should have(0).items
+      end
+    end
+  end
+  
+  it "should fetch summary collections for date ranges"
+  
+  def db
+    Redistat.redis
+  end
+  
+end