added model#save! raising an exception if the document isn't saved properly

lib/couchrest/core/model.rb

@@ -459,6 +459,12 @@ module CouchRest
         update
       end
     end
+    
+    # Saves the document to the db using create or update. Raises an exception
+    # if the document is not saved properly.
+    def save!
+      raise "#{self.inspect} failed to save" unless self.save
+    end
 
     # Deletes the document from the database. Runs the :delete callbacks.
     # Removes the <tt>_id</tt> and <tt>_rev</tt> fields, preparing the

spec/couchrest/core/model_spec.rb

@@ -3,6 +3,16 @@ require File.dirname(__FILE__) + '/../../spec_helper'
 class Basic < CouchRest::Model
 end
 
+class BasicWithValidation < CouchRest::Model
+  
+  before :save, :validate
+  key_accessor :name
+  
+  def validate
+    throw(:halt, false) unless name
+  end
+end
+
 class WithTemplate < CouchRest::Model
   unique_id do |model|
     model['important-field']
@@ -299,6 +309,21 @@ describe CouchRest::Model do
       @obj['couchrest-type'].should == 'Basic'
     end
   end
+  
+  describe "saving a model with validation hooks added as extlib" do
+    before(:all) do
+      @obj = BasicWithValidation.new
+    end
+    
+    it "save should return false is the model doesn't save as expected" do
+      @obj.save.should be_false
+    end
+    
+    it "save! should raise and exception if the model doesn't save" do
+      lambda{ @obj.save!}.should raise_error("#{@obj.inspect} failed to save")
+    end
+    
+  end
 
   describe "saving a model with a unique_id configured" do
     before(:each) do