Added default options that are resettable

git-svn-id: https://svn.thoughtbot.com/plugins/paperclip/trunk@432 7bbfaf0e-4d1d-0410-9690-a8bb5f8ef2aa

lib/paperclip/attachment.rb

@@ -3,14 +3,14 @@ module Paperclip
   # deletes when the model is destroyed, and processes the file upon assignment.
   class Attachment
     
-    def self.defaults
-      @defaults ||= {
-        :url => "/:attachment/:id/:style/:basename.:extension",
-        :path => ":rails_root/public/:attachment/:id/:style/:basename.:extension",
-        :styles => {},
-        :default_url => "/:attachment/:style/missing.png",
+    def self.default_options
+      @default_options ||= {
+        :url           => "/:attachment/:id/:style/:basename.:extension",
+        :path          => ":rails_root/public/:attachment/:id/:style/:basename.:extension",
+        :styles        => {},
+        :default_url   => "/:attachment/:style/missing.png",
         :default_style => :original,
-        :validations => []
+        :validations   => []
       }
     end
 
@@ -23,16 +23,14 @@ module Paperclip
       @name              = name
       @instance          = instance
 
-      # options = options.merge(self.class.defaults)
+      options = self.class.default_options.merge(options)
 
-      @url               = options[:url]           || 
-                           "/:attachment/:id/:style/:basename.:extension"
-      @path              = options[:path]          || 
-                           ":rails_root/public/:attachment/:id/:style/:basename.:extension"
-      @styles            = options[:styles]        || {}
-      @default_url       = options[:default_url]   || "/:attachment/:style/missing.png"
-      @validations       = options[:validations]   || []
-      @default_style     = options[:default_style] || :original
+      @url               = options[:url]
+      @path              = options[:path]
+      @styles            = options[:styles]
+      @default_url       = options[:default_url]
+      @validations       = options[:validations]
+      @default_style     = options[:default_style]
       @queued_for_delete = []
       @processed_files   = {}
       @errors            = []
@@ -48,7 +46,7 @@ module Paperclip
     # assigns attributes, processes the file, and runs validations. It also queues up
     # the previous file for deletion, to be flushed away on #save of its host.
     def assign uploaded_file
-      return nil unless valid_file?(uploaded_file) || uploaded_file.nil?
+      return nil unless valid_assignment?(uploaded_file)
 
       queue_existing_for_delete
       @errors            = []
@@ -114,7 +112,7 @@ module Paperclip
     # style. Useful for streaming with +send_file+.
     def to_io style = nil
       begin
-        style ||= @default_style
+        style ||= default_style
         @processed_files[style] || File.new(path(style))
       rescue Errno::ENOENT
         nil
@@ -154,8 +152,8 @@ module Paperclip
 
     private
 
-    def valid_file? file #:nodoc:
-      file.respond_to?(:original_filename) && file.respond_to?(:content_type)
+    def valid_assignment? file #:nodoc:
+      file.nil? || (file.respond_to?(:original_filename) && file.respond_to?(:content_type))
     end
 
     def validate #:nodoc:
@@ -181,11 +179,11 @@ module Paperclip
         begin
           dimensions, format = args
           @processed_files[name] = Thumbnail.make(self.file, 
-                                                  dimensions, 
+                                                  dimensions,
                                                   format, 
-                                                  @whiny_thumbnails)
+                                                  @whiny_thumnails)
         rescue Errno::ENOENT  => e
-          @errors << "could not be processed because the file does not exist."
+          @errors << "could not be processed because the filedoes not exist."
         rescue PaperclipError => e
           @errors << e.message
         end
@@ -194,7 +192,7 @@ module Paperclip
     end
 
     def interpolate pattern, style = nil #:nodoc:
-      style ||= @default_style
+      style ||= default_style
       pattern = pattern.dup
       self.class.interpolations.each do |tag, l|
         pattern.gsub!(/:#{tag}/) do |match|
@@ -228,7 +226,7 @@ module Paperclip
         FileUtils.mkdir_p( File.dirname(path(style)) )
         @processed_files[style] = file.stream_to(path(style)) unless file.path == path(style)
       end
-      @file = @processed_files[@default_style]
+      @file = @processed_files[default_style]
     end
 
     def flush_deletes #:nodoc:

test/test_attachment.rb

@@ -5,48 +5,51 @@ class Dummy
 end
 
 class AttachmentTest < Test::Unit::TestCase
-#  context "Attachment defaults" do
-#    setup do
-#      @old_defaults = Paperclip::Attachment.defaults
-#      @new_defaults = @old_defaults.merge({
-#        :path => "argle/bargle",
-#        :url => "fooferon",
-#        :default_url => "not here.png"
-#      })
-#    end
-#
-#    should "be overrideable" do
-#      Paperclip::Attachment.defaults.merge!(@new_defaults)
-#      @new_defaults.keys.each do |key|
-#        assert_equal @new_defaults[key], Paperclip::Attachment.defaults[key]
-#      end
-#    end
-#
-#    context "on an Attachment" do
-#      setup do
-#        @attachment = Dummy.new
-#      end
-#
-#      should "be the defaults" do
-#        @old_defaults.keys.each do |key|
-#          assert_equal @old_defaults[key], @attachment.instance_variable_get("@#{key}"), key
-#        end
-#      end
-#
-#      context "when redefined" do
-#        setup do
-#          Paperclip::Attachment.defaults.merge!(@new_defaults)
-#          @attachment = Dummy.new
-#        end
-#
-#        should "be the new defaults" do
-#          @new_defaults.keys.each do |key|
-#            assert_equal @new_defaults[key], @attachment.instance_variable_get("@#{key}"), key
-#          end
-#        end
-#      end
-#    end
-#  end
+  context "Attachment default_options" do
+    setup do
+      rebuild_model
+      @old_default_options = Paperclip::Attachment.default_options
+      @new_default_options = @old_default_options.merge({
+        :path => "argle/bargle",
+        :url => "fooferon",
+        :default_url => "not here.png"
+      })
+    end
+
+    should "be overrideable" do
+      Paperclip::Attachment.default_options.merge!(@new_default_options)
+      @new_default_options.keys.each do |key|
+        assert_equal @new_default_options[key], Paperclip::Attachment.default_options[key]
+      end
+    end
+
+    context "on an Attachment" do
+      setup do
+        @dummy = Dummy.new
+        @attachment = @dummy.avatar
+      end
+
+      should "be the default_options" do
+        @old_default_options.keys.each do |key|
+          assert_equal @old_default_options[key], @attachment.instance_variable_get("@#{key}"), key
+        end
+      end
+
+      context "when redefined" do
+        setup do
+          Paperclip::Attachment.default_options.merge!(@new_default_options)
+          @dummy = Dummy.new
+          @attachment = @dummy.avatar
+        end
+
+        should "be the new default_options" do
+          @new_default_options.keys.each do |key|
+            assert_equal @new_default_options[key], @attachment.instance_variable_get("@#{key}"), key
+          end
+        end
+      end
+    end
+  end
 
   context "An attachment" do
     setup do