Added support for connection_ref's down throughout

the code, so models can connect to specific Redis
servers.

I believe a lot of the code needs some
restructuring at some point down the line to
handle multiple connections in a cleaner way, but
for now it'll do.

spec/model_helper.rb

@@ -1,6 +1,6 @@
 require "redistat"
 
-class ModelHelper
+class ModelHelper1
   include Redistat::Model
   
   
@@ -13,4 +13,11 @@ class ModelHelper2
   store_event true
   hashed_label true
   
+end
+
+class ModelHelper3
+  include Redistat::Model
+  
+  connect_to :port => 8379, :db => 14
+  
 end

spec/model_spec.rb

@@ -5,11 +5,13 @@ describe Redistat::Model do
   include Redistat::Database
   
   before(:each) do
-    db.flushdb
+    ModelHelper1.redis.flushdb
+    ModelHelper2.redis.flushdb
+    ModelHelper3.redis.flushdb
   end
   
   it "should should name itself correctly" do
-    ModelHelper.send(:name).should == "ModelHelper"
+    ModelHelper1.send(:name).should == "ModelHelper1"
     ModelHelper2.send(:name).should == "ModelHelper2"
   end
   
@@ -18,49 +20,81 @@ describe Redistat::Model do
     ModelHelper2.store_event.should == true
     ModelHelper2.hashed_label.should == true
     
-    ModelHelper.depth.should == nil
-    ModelHelper.store_event.should == nil
-    ModelHelper.hashed_label.should == nil
-    ModelHelper.depth(:hour)
-    ModelHelper.depth.should == :hour
-    ModelHelper.store_event(true)
-    ModelHelper.store_event.should == true
-    ModelHelper.hashed_label(true)
-    ModelHelper.hashed_label.should == true
-    ModelHelper.options[:depth] = nil
-    ModelHelper.options[:store_event] = nil
-    ModelHelper.options[:hashed_label] = nil
-    ModelHelper.depth.should == nil
-    ModelHelper.store_event.should == nil
-    ModelHelper.hashed_label.should == nil
+    ModelHelper1.depth.should == nil
+    ModelHelper1.store_event.should == nil
+    ModelHelper1.hashed_label.should == nil
+    ModelHelper1.depth(:hour)
+    ModelHelper1.depth.should == :hour
+    ModelHelper1.store_event(true)
+    ModelHelper1.store_event.should == true
+    ModelHelper1.hashed_label(true)
+    ModelHelper1.hashed_label.should == true
+    ModelHelper1.options[:depth] = nil
+    ModelHelper1.options[:store_event] = nil
+    ModelHelper1.options[:hashed_label] = nil
+    ModelHelper1.depth.should == nil
+    ModelHelper1.store_event.should == nil
+    ModelHelper1.hashed_label.should == nil
   end
   
   it "should store and fetch stats" do
-    ModelHelper.store("sheep.black", {:count => 6, :weight => 461}, 4.hours.ago)
-    ModelHelper.store("sheep.black", {:count => 2, :weight => 156})
+    ModelHelper1.store("sheep.black", {:count => 6, :weight => 461}, 4.hours.ago)
+    ModelHelper1.store("sheep.black", {:count => 2, :weight => 156})
     
-    stats = ModelHelper.fetch("sheep.black", 2.hours.ago, 1.hour.from_now)
+    stats = ModelHelper1.fetch("sheep.black", 2.hours.ago, 1.hour.from_now)
     stats.total["count"].should == 2
     stats.total["weight"].should == 156
     stats.first.should == stats.total
     
-    stats = ModelHelper.fetch("sheep.black", 5.hours.ago, 1.hour.from_now)
+    stats = ModelHelper1.fetch("sheep.black", 5.hours.ago, 1.hour.from_now)
     stats.total[:count].should == 8
     stats.total[:weight].should == 617
     stats.first.should == stats.total
     
-    ModelHelper.store("sheep.white", {:count => 5, :weight => 393}, 4.hours.ago)
-    ModelHelper.store("sheep.white", {:count => 4, :weight => 316})
+    ModelHelper1.store("sheep.white", {:count => 5, :weight => 393}, 4.hours.ago)
+    ModelHelper1.store("sheep.white", {:count => 4, :weight => 316})
     
-    stats = ModelHelper.fetch("sheep.white", 2.hours.ago, 1.hour.from_now)
+    stats = ModelHelper1.fetch("sheep.white", 2.hours.ago, 1.hour.from_now)
     stats.total[:count].should == 4
     stats.total[:weight].should == 316
     stats.first.should == stats.total
     
-    stats = ModelHelper.fetch("sheep.white", 5.hours.ago, 1.hour.from_now)
+    stats = ModelHelper1.fetch("sheep.white", 5.hours.ago, 1.hour.from_now)
     stats.total[:count].should == 9
     stats.total[:weight].should == 709
     stats.first.should == stats.total
   end
   
-end
+  it "should connect to different Redis servers on a per-model basis" do
+    ModelHelper3.redis.client.db.should == 14
+    
+    ModelHelper3.store("sheep.black", {:count => 6, :weight => 461}, 4.hours.ago)
+    ModelHelper3.store("sheep.black", {:count => 2, :weight => 156})
+    
+    db.keys("*").should be_empty
+    ModelHelper1.redis.keys("*").should be_empty
+    db("ModelHelper3").keys("*").should have(5).items
+    ModelHelper3.redis.keys("*").should have(5).items
+    
+    stats = ModelHelper3.fetch("sheep.black", 2.hours.ago, 1.hour.from_now)
+    stats.total["count"].should == 2
+    stats.total["weight"].should == 156
+    stats = ModelHelper3.fetch("sheep.black", 5.hours.ago, 1.hour.from_now)
+    stats.total[:count].should == 8
+    stats.total[:weight].should == 617
+    
+    ModelHelper3.connect_to(:port => 8379, :db => 13)
+    ModelHelper3.redis.client.db.should == 13
+    
+    stats = ModelHelper3.fetch("sheep.black", 5.hours.ago, 1.hour.from_now)
+    stats.total.should == {}
+    
+    ModelHelper3.connect_to(:port => 8379, :db => 14)
+    ModelHelper3.redis.client.db.should == 14
+    
+    stats = ModelHelper3.fetch("sheep.black", 5.hours.ago, 1.hour.from_now)
+    stats.total[:count].should == 8
+    stats.total[:weight].should == 617
+  end
+  
+end

spec/spec_helper.rb

@@ -9,4 +9,4 @@ require 'rspec/autorun'
 
 # use the test Redistat instance
 Redistat.connect(:port => 8379, :db => 15)
-Redistat.flush
+Redistat.redis.flushdb