Fixed bug with default_url

git-svn-id: https://svn.thoughtbot.com/plugins/paperclip/trunk@400 7bbfaf0e-4d1d-0410-9690-a8bb5f8ef2aa

Rakefile

@@ -21,10 +21,14 @@ Rake::RDocTask.new(:rdoc) do |rdoc|
   rdoc.rdoc_files.include('lib/**/*.rb')
 end
 
+desc 'Update documentation on website'
+task :sync_docs => 'rdoc' do
+  `rsync -ave ssh doc/ dev@dev.thoughtbot.com:/home/dev/www/dev.thoughtbot.com/paperclip`
+end
+
 desc 'Clean up files.'
 task :clean do |t|
   FileUtils.rm_rf "doc"
-  FileUtils.rm_rf "test/public"
   FileUtils.rm_rf "tmp"
   FileUtils.rm "test/debug.log" rescue nil
   FileUtils.rm "test/paperclip.db" rescue nil

lib/paperclip.rb

@@ -80,10 +80,10 @@ module ClassMethods
     #   Paperclip::Attachment#interpolate for more information on variable interpolaton.
     #     :url => "/:attachment/:id/:style_:basename:extension"
     #     :url => "http://some.other.host/stuff/:class/:id_:extension"
-    # * +missing_url+: The URL that will be returned if there is no attachment assigned. 
+    # * +default_url+: The URL that will be returned if there is no attachment assigned. 
     #   This field is interpolated just as the url is. The default value is 
     #   "/:class/:attachment/missing_:style.png"
-    #     has_attached_file :avatar, :missing_url => "/images/default_:style_avatar.png"
+    #     has_attached_file :avatar, :default_url => "/images/default_:style_avatar.png"
     #     User.new.avatar_url(:small) # => "/images/default_small_avatar.png"
     # * +styles+: A hash of thumbnail styles and their geometries. You can find more about 
     #   geometry strings at the ImageMagick website 

lib/paperclip/attachment.rb

@@ -58,7 +58,7 @@ def assign uploaded_file
     # This is not recommended if you don't need the security, however, for
     # performance reasons.
     def url style = nil
-      interpolate(@url, style) || interpolate(@default_url, style)
+      @file ? interpolate(@url, style) : interpolate(@default_url, style)
     end
 
     # Alias to +url+

test/test_attachment.rb

@@ -20,6 +20,12 @@ class AttachmentTest < Test::Unit::TestCase
       @file = File.new(File.join(File.dirname(__FILE__), "fixtures", "5k.png"))
     end
 
+    should "return its default_url when no file assigned" do
+      assert @attachment.file.nil?
+      assert_equal "/tests/original/missing.png", @attachment.url
+      assert_equal "/tests/blah/missing.png", @attachment.url(:blah)
+    end
+
     context "when expecting three styles" do
       setup do
         @attachment = Paperclip::Attachment.new(:test, @instance, @default_options.merge({
@@ -40,6 +46,12 @@ class AttachmentTest < Test::Unit::TestCase
           @attachment.assign(@file)
         end
 
+        should "return the real url" do
+          assert @attachment.file
+          assert_equal "/tests/41/original/5k.png", @attachment.url
+          assert_equal "/tests/41/blah/5k.png", @attachment.url(:blah)
+        end
+
         should "be dirty" do
           assert @attachment.dirty?
         end