Change excludes to denies

lib/draper/base.rb

@@ -5,21 +5,21 @@ module Draper
     include ActionView::Helpers::TextHelper
 
     require 'active_support/core_ext/class/attribute'
-    class_attribute :exclusions, :allowed
+    class_attribute :denied, :allowed
     attr_accessor   :source
     
-    DEFAULT_EXCLUSIONS = Object.new.methods
-    self.exclusions = DEFAULT_EXCLUSIONS
+    DEFAULT_DENIED = Object.new.methods << [:method_missing]
+    self.denied = DEFAULT_DENIED
     
-    def self.excludes(*input_exclusions)
-      raise ArgumentError, "Specify at least one method (as a symbol) to exclude when using excludes" if input_exclusions.empty?
-      raise ArgumentError, "Use either 'allows' or 'excludes', but not both." if self.allowed?
-      self.exclusions += input_exclusions
+    def self.denies(*input_denied)
+      raise ArgumentError, "Specify at least one method (as a symbol) to exclude when using denies" if input_denied.empty?
+      raise ArgumentError, "Use either 'allows' or 'denies', but not both." if self.allowed?
+      self.denied += input_denied
     end
     
     def self.allows(*input_allows)
       raise ArgumentError, "Specify at least one method (as a symbol) to allow when using allows" if input_allows.empty?
-      #raise ArgumentError, "Use either 'allows' or 'excludes', but not both." unless (self.exclusions == DEFAULT_EXCLUSIONS)
+      #raise ArgumentError, "Use either 'allows' or 'denies', but not both." unless (self.denies == DEFAULT_EXCLUSIONS)
       self.allowed = input_allows
     end
     
@@ -30,7 +30,7 @@ module Draper
     
   private
     def select_methods
-      self.allowed || (source.public_methods - exclusions)
+      self.allowed || (source.public_methods - denied)
     end
 
     def build_methods

spec/base_spec.rb

@@ -21,10 +21,10 @@ describe Draper::Base do
     source.to_s.should_not == subject.to_s
   end
   
-  describe "a sample usage with excludes" do
+  describe "a sample usage with denies" do
     before(:all) do
-      class DecoratorWithExcludes < Draper::Base  
-        excludes :upcase
+      class DecoratorWithDenies < Draper::Base  
+        denies :upcase
         
         def sample_content
           content_tag :span, "Hello, World!"
@@ -40,27 +40,31 @@ describe Draper::Base do
       end
     end
     
-    let(:subject_with_excludes){ DecoratorWithExcludes.new(source) }
+    let(:subject_with_denies){ DecoratorWithDenies.new(source) }
     
-    it "should not echo methods specified with excludes" do
-      subject_with_excludes.should_not respond_to(:upcase)
+    it "should not echo methods specified with denies" do
+      subject_with_denies.should_not respond_to(:upcase)
     end
 
-    it "should not clobber other decorators methods" do
+    it "should not clobber other decorators' methods" do
       subject.should respond_to(:upcase)
     end    
     
     it "should be able to use the content_tag helper" do
-      subject_with_excludes.sample_content.to_s.should == "<span>Hello, World!</span>"
+      subject_with_denies.sample_content.to_s.should == "<span>Hello, World!</span>"
     end
     
     it "should be able to use the link_to helper" do
-      subject_with_excludes.sample_link.should == "<a href=\"/World\">Hello</a>"
+      subject_with_denies.sample_link.should == "<a href=\"/World\">Hello</a>"
     end
     
     it "should be able to use the pluralize helper" do
       pending("Figure out odd interaction when the wrapped source object already has the text_helper methods (ie: a String)")
-      subject_with_excludes.sample_truncate.should == "Once..."
+      subject_with_denies.sample_truncate.should == "Once..."
+    end
+    
+    it "should nullify method_missing to prevent AR from being cute" do
+      pending("How to test this without AR? Ugh.")
     end
   end
   
@@ -82,29 +86,29 @@ describe Draper::Base do
     end
   end
   
-  describe "invalid usages of allows and excludes" do
+  describe "invalid usages of allows and denies" do
     let(:blank_allows){
       class DecoratorWithInvalidAllows < Draper::Base  
         allows
       end
     }
     
-    let(:blank_excludes){
-      class DecoratorWithInvalidExcludes < Draper::Base  
-        excludes
+    let(:blank_denies){
+      class DecoratorWithInvalidDenies < Draper::Base  
+        denies
       end
     }
     
-    let(:using_allows_then_excludes){
+    let(:using_allows_then_denies){
       class DecoratorWithInvalidMixing < Draper::Base  
         allows :upcase
-        excludes :downcase
+        denies :downcase
       end
     }    
     
-    let(:using_excludes_then_allows){
+    let(:using_denies_then_allows){
       class DecoratorWithInvalidMixing < Draper::Base  
-        excludes :downcase
+        denies :downcase
         allows :upcase        
       end
     }
@@ -113,16 +117,16 @@ describe Draper::Base do
       expect {blank_allows}.should raise_error(ArgumentError)
     end
     
-    it "should raise an exception for a blank excludes" do
-      expect {blank_excludes}.should raise_error(ArgumentError)
+    it "should raise an exception for a blank denies" do
+      expect {blank_denies}.should raise_error(ArgumentError)
     end
     
-    it "should raise an exception for mixing allows then excludes" do
-      expect {using_allows_then_excludes}.should raise_error(ArgumentError)
+    it "should raise an exception for calling allows then denies" do
+      expect {using_allows_then_denies}.should raise_error(ArgumentError)
     end
     
-    it "should raise an exception for calling excludes then allows" do
-      expect {using_excludes_then_allows}.should raise_error(ArgumentError)
+    it "should raise an exception for calling denies then allows" do
+      expect {using_denies_then_allows}.should raise_error(ArgumentError)
     end
   end
 end