prefix_parameters pulls /:path/:params from the URI prefix

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@5809 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activeresource/lib/active_resource/base.rb

@@ -4,8 +4,7 @@ require 'set'
 
 module ActiveResource
   class Base
-    # The logger for logging diagnostic and trace information during ARes
-    # calls.
+    # The logger for diagnosing and tracing ARes calls.
     cattr_accessor :logger
 
     class << self
@@ -18,9 +17,8 @@ module ActiveResource
       end
 
       def site=(site)
-        @site = create_site_uri_from(site)
         @connection = nil
-        @site
+        @site = create_site_uri_from(site)
       end
 
       def connection(refresh = false)
@@ -40,13 +38,11 @@ module ActiveResource
       end
 
       def prefix=(value = '/')
-        @prefix_parameters = Set.new
-        prefix_call = value.gsub(/:\w+/) do |key|
-          @prefix_parameters << key[1..-1].to_sym
-          "\#{options[#{key}]}"
-        end
-        method_decl = %(def prefix(options={}) "#{prefix_call}" end)
-        instance_eval method_decl, __FILE__, __LINE__
+        prefix_call = value.gsub(/:\w+/) { |key| "\#{options[#{key}]}" }
+        instance_eval <<-end_eval, __FILE__, __LINE__
+          def prefix_source() "#{value}" end
+          def prefix(options={}) "#{prefix_call}" end
+        end_eval
       rescue
         logger.error "Couldn't set prefix: #{$!}\n  #{method_decl}"
         raise
@@ -99,10 +95,13 @@ module ActiveResource
           site.is_a?(URI) ? site.dup : URI.parse(site)
         end
 
+        def prefix_parameters
+          @prefix_parameters ||= prefix_source.scan(/:\w+/).map { |key| key[1..-1].to_sym }.to_set
+        end
+
         def query_string(options)
           # Omit parameters which appear in the URI path.
-          prefix unless defined?(@prefix_parameters)
-          query_params = options.reject { |key, value| @prefix_parameters.include?(key) }
+          query_params = options.reject { |key, value| prefix_parameters.include?(key) }
 
           # Accumulate a list of escaped key=value pairs for the given parameters.
           pairs = []

activeresource/test/base_test.rb

@@ -43,6 +43,11 @@ class BaseTest < Test::Unit::TestCase
     assert_equal site, Person.site
   end
 
+  def test_should_use_site_prefix_and_credentials
+    assert_equal 'http://foo:bar@beast.caboo.se', Forum.site.to_s
+    assert_equal 'http://foo:bar@beast.caboo.se/forums/:forum_id', Topic.site.to_s
+  end
+
   def test_site_reader_uses_superclass_site_until_written
     # Superclass is Object so returns nil.
     assert_nil ActiveResource::Base.site
@@ -88,7 +93,7 @@ class BaseTest < Test::Unit::TestCase
     assert_equal '/people.xml?gender=', Person.collection_path(:gender => nil)
 
     assert_equal '/people.xml?gender=male', Person.collection_path('gender' => 'male')
-    assert_equal '/people.xml?student=true&gender=male', Person.collection_path(:gender => 'male', :student => true)
+    assert_equal '/people.xml?gender=male&student=true', Person.collection_path(:gender => 'male', :student => true)
 
     assert_equal '/people.xml?name[]=bob&name[]=your+uncle%2Bme&name[]=&name[]=false', Person.collection_path(:name => ['bob', 'your uncle+me', nil, false])
   end
@@ -128,13 +133,13 @@ class BaseTest < Test::Unit::TestCase
 
   def test_prefix
     assert_equal "/", Person.prefix
-    assert_equal Set.new, Person.instance_variable_get('@prefix_parameters')
+    assert_equal Set.new, Person.send(:prefix_parameters)
   end
 
   def test_custom_prefix
     assert_equal '/people//', StreetAddress.prefix
     assert_equal '/people/1/', StreetAddress.prefix(:person_id => 1)
-    assert_equal [:person_id].to_set, StreetAddress.instance_variable_get('@prefix_parameters')
+    assert_equal [:person_id].to_set, StreetAddress.send(:prefix_parameters)
   end
 
   def test_find_by_id
@@ -232,9 +237,4 @@ class BaseTest < Test::Unit::TestCase
   def test_delete
     assert Person.delete(1)
   end
-
-  def test_should_use_site_prefix_and_credentials
-    assert_equal 'http://foo:bar@beast.caboo.se', Forum.site.to_s
-    assert_equal 'http://foo:bar@beast.caboo.se/forums/:forum_id', Topic.site.to_s
-  end
 end