Allow to specify default view options

Change-Id: Ib3b64950eaf2674338e406e4acd8f0d9839745d3

lib/couchbase/model.rb

@@ -22,6 +22,10 @@
 require 'couchbase/model/uuid'
 require 'couchbase/model/configuration'
 
+unless Object.respond_to?(:singleton_class)
+  require 'couchbase/model/ext/singleton_class'
+end
+
 module Couchbase
 
   # @since 0.0.1
@@ -271,19 +275,34 @@ def self.attribute(*names)
       end
     end
 
+    # Defines a view for the model
+    #
+    # @since 0.0.1
+    #
+    # @param [Symbol, String, Array] names names of the views
+    # @param [Hash] options options passed to the {Couchbase::View}
+    #
+    # @example Define some views for a model
+    #  class Post < Couchbase::Model
+    #    view :all, :published
+    #    view :by_rating, :include_docs => false
+    #  end
+    #
+    #  post = Post.find("hello")
+    #  post.by_rating.each do |r|
+    #    # ...
+    #  end
     def self.view(*names)
-      options = {}
+      options = {:wrapper_class => self, :include_docs => true}
       if names.last.is_a?(Hash)
-        options = names.pop
+        options.update(names.pop)
       end
       names.each do |name|
         views << name
-        self.instance_eval <<-EOV, __FILE__, __LINE__ + 1
-          def #{name}(params = {})
-            View.new(bucket, "_design/\#{design_document}/_view/#{name}",
-                     params.merge(:wrapper_class => self, :include_docs => true))
-          end
-        EOV
+        singleton_class.send(:define_method, name) do |*params|
+          params = options.merge(params.first || {})
+          View.new(bucket, "_design/#{design_document}/_view/#{name}", params)
+        end
       end
     end
 

lib/couchbase/model/ext/singleton_class.rb

@@ -0,0 +1,24 @@
+# Author:: Couchbase <info@couchbase.com>
+# Copyright:: 2012 Couchbase, Inc.
+# License:: Apache License, Version 2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+class Object
+  def singleton_class
+    class << self
+      self
+    end
+  end
+end