compound-key views work

lib/couchrest.rb

@@ -15,6 +15,7 @@
 require "rubygems"
 require 'json'
 require 'rest_client'
+require 'extlib'
 
 $:.unshift File.dirname(__FILE__) unless
   $:.include?(File.dirname(__FILE__)) ||

lib/couchrest/core/model.rb

@@ -1,7 +1,3 @@
-require 'rubygems'
-gem 'extlib'
-require 'extlib'
-
 module CouchRest
   module Model
     class << self
@@ -148,19 +144,47 @@ module CouchRest
         @@design_doc['views'][method_name] = {
           'map' => map_function
         }
+
         @@design_doc_fresh = false
+        
         self.meta_class.instance_eval do
-          define_method method_name do
+          define_method method_name do |args|
+            args ||= {}
             unless @@design_doc_fresh
               refresh_design_doc
             end
-            @@design_doc
+            raw = args.delete(:raw)
+            view_name = "#{type}/#{method_name}"
+
+            if raw
+              fetch_view(view_name)
+            else
+              view = fetch_view(view_name)
+              # TODO this can be optimized once the include-docs patch is applied
+              view['rows'].collect{|r|new(database.get(r['id']))}
+            end
           end
         end
       end
       
       private
       
+      def fetch_view view_name
+        retryable = true
+        begin
+          database.view(view_name)
+        # the design doc could have been deleted by a rouge process
+        rescue RestClient::ResourceNotFound => e
+          if retryable
+            refresh_design_doc
+            retryable = false
+            retry
+          else
+            raise e
+          end
+        end
+      end
+      
       def design_doc_id
         "_design/#{self.to_s}"
       end
@@ -173,11 +197,13 @@ module CouchRest
         }
       end
       
-      
       def refresh_design_doc
         saved = database.get(design_doc_id) rescue nil
         if saved
-          # merge the new views in and save if it needs to be saved
+          @@design_doc['views'].each do |name, view|
+            saved['views'][name] = view
+          end
+          database.save(saved)
         else
           database.save(@@design_doc)
         end
@@ -190,7 +216,7 @@ module CouchRest
       def self.included(model)
         model.class_eval <<-EOS, __FILE__, __LINE__
           include Extlib::Hook
-          register_instance_hooks :save #, :create, :update, :destroy
+          register_instance_hooks :save, :create, :update #, :destroy
         EOS
       end
     end # module Callbacks

spec/couchrest/core/model_spec.rb

@@ -22,6 +22,7 @@ class Article
   key_writer :date
   
   view_by :date
+  view_by :user_id, :date
 end
 
 describe CouchRest::Model do
@@ -189,7 +190,8 @@ describe CouchRest::Model do
   describe "a model with simple views" do
     before(:all) do
       written_at = Time.now - 24 * 3600 * 7
-      ["this and that", "also interesting", "more fun", "some junk"].each do |title|
+      @titles = ["this and that", "also interesting", "more fun", "some junk"]
+      @titles.each do |title|
         a = Article.new(:title => title)
         a.date = written_at
         a.save
@@ -198,17 +200,43 @@ describe CouchRest::Model do
     end
     
     it "should create the design doc" do
-      Article.by_date
+      Article.by_date rescue nil
       doc = Article.database.get("_design/Article")
       doc['views']['by_date'].should_not be_nil
     end
     
-    it "should return the matching view result" do
+    it "should return the matching raw view result" do
       view = Article.by_date :raw => true
-      # view.should == 'x'
-      # view['rows'].should == 4
+      view['rows'].length.should == 4
     end
     
-    
+    it "should return the matching object" do
+      articles = Article.by_date
+      articles.collect{|a|a.title}.should == @titles
+    end
+  end
+  
+  describe "a model with a compound key view" do
+    before(:all) do
+      written_at = Time.now - 24 * 3600 * 7
+      @titles = ["uniq one", "even more interesting", "less fun", "not junk"]
+      @user_ids = ["quentin", "aaron"]
+      @titles.each_with_index do |title,i|
+        u = i % 2
+        a = Article.new(:title => title, :user_id => @user_ids[u])
+        a.date = written_at
+        a.save
+        written_at += 24 * 3600
+      end
+    end
+    it "should create the design doc" do
+      Article.by_user_id_and_date rescue nil
+      doc = Article.database.get("_design/Article")
+      doc['views']['by_date'].should_not be_nil
+    end
+    it "should sort correctly" do
+      articles = Article.by_user_id_and_date
+      # articles.should == 'x'
+    end
   end
 end