Added attributes= to casted model and extended doc

lib/couchrest/more/casted_model.rb

@@ -25,5 +25,17 @@ module CouchRest
     def [] key
       super(key.to_s)
     end
+    
+    # Sets the attributes from a hash
+    def update_attributes_without_saving(hash)
+      hash.each do |k, v|
+        raise NoMethodError, "#{k}= method not available, use property :#{k}" unless self.respond_to?("#{k}=")
+      end      
+      hash.each do |k, v|
+        self.send("#{k}=",v)
+      end
+    end
+    alias :attributes= :update_attributes_without_saving
+    
   end
 end

lib/couchrest/more/extended_document.rb

@@ -113,6 +113,7 @@ module CouchRest
         self.send("#{k}=",v)
       end
     end
+    alias :attributes= :update_attributes_without_saving
 
     # Takes a hash as argument, and applies the values by using writer methods
     # for each key. Raises a NoMethodError if the corresponding methods are

spec/couchrest/more/casted_model_spec.rb

@@ -4,6 +4,7 @@ require File.join(File.dirname(__FILE__), '..', '..', 'spec_helper')
 require File.join(FIXTURE_PATH, 'more', 'card')
 require File.join(FIXTURE_PATH, 'more', 'cat')
 require File.join(FIXTURE_PATH, 'more', 'person')
+require File.join(FIXTURE_PATH, 'more', 'question')
 
 
 class WithCastedModelMixin < Hash
@@ -106,7 +107,40 @@ describe CouchRest::CastedModel do
       @obj.keywords.should be_an_instance_of(Array)
       @obj.keywords.first.should == 'couch'
     end
+  end
+  
+  describe "update attributes without saving" do
+    before(:each) do
+      @question = Question.new(:q => "What is your quest?", :a => "To seek the Holy Grail")
+    end
+    it "should work for attribute= methods" do
+      @question.q.should == "What is your quest?"
+      @question['a'].should == "To seek the Holy Grail"
+      @question.update_attributes_without_saving(:q => "What is your favorite color?", 'a' => "Blue")
+      @question['q'].should == "What is your favorite color?"
+      @question.a.should == "Blue"
+    end
     
+    it "should also work for attributes= alias" do
+      @question.respond_to?(:attributes=).should be_true
+      @question.attributes = {:q => "What is your favorite color?", 'a' => "Blue"}
+      @question['q'].should == "What is your favorite color?"
+      @question.a.should == "Blue"
+    end
+    
+    it "should flip out if an attribute= method is missing" do
+      lambda {
+        @q.update_attributes_without_saving('foo' => "something", :a => "No green")
+      }.should raise_error(NoMethodError)
+    end
+    
+    it "should not change any attributes if there is an error" do
+      lambda {
+        @q.update_attributes_without_saving('foo' => "something", :a => "No green")
+      }.should raise_error(NoMethodError)
+      @question.q.should == "What is your quest?"
+      @question.a.should == "To seek the Holy Grail"
+    end
   end
   
   describe "saved document with casted models" do

spec/couchrest/more/extended_doc_spec.rb

@@ -109,6 +109,12 @@ describe "ExtendedDocument" do
       @art['title'].should == "super danger"
     end
     
+    it "should also work using attributes= alias" do
+      @art.respond_to?(:attributes=).should be_true
+      @art.attributes = {'date' => Time.now, :title => "something else"}
+      @art['title'].should == "something else"
+    end
+    
     it "should flip out if an attribute= method is missing" do
       lambda {
         @art.update_attributes_without_saving('slug' => "new-slug", :title => "super danger")