Add support for Rails 3.0

.gitignore

@@ -1,4 +1,4 @@
 pkg/*
 *.gem
 .bundle
-Gemfile.lock
+Gemfile*.lock

.travis.yml

@@ -1,5 +1,6 @@
 before_install: gem update --system
 gemfile:
+  - Gemfile-rails.3.0.x
   - Gemfile-rails.3.1.x
   - Gemfile
 rvm:

Gemfile-rails.3.0.x

@@ -0,0 +1,14 @@
+source "http://rubygems.org"
+
+gemspec
+
+gem "activerecord",  "~> 3.0.0"
+gem "activesupport", "~> 3.0.0"
+
+platform :jruby do
+  gem "activerecord-jdbcsqlite3-adapter", "~> 1.2.0"
+end
+
+platform :ruby do
+  gem "sqlite3", "~> 1.3.4"
+end

lib/i18n_alchemy/proxy.rb

@@ -29,8 +29,14 @@ def attributes=(attributes)
         @target.attributes = parse_attributes(attributes)
       end
 
+      # This method is added to the proxy even thought it does not exist in
+      # Rails 3.0 (only >= 3.1).
       def assign_attributes(attributes, *args)
-        @target.assign_attributes(parse_attributes(attributes), *args)
+        if @target.respond_to?(:assign_attributes)
+          @target.assign_attributes(parse_attributes(attributes), *args)
+        else
+          self.attributes = attributes
+        end
       end
 
       def update_attributes(attributes, *args)

test/i18n_alchemy/proxy_test.rb

@@ -175,7 +175,11 @@ def test_initializes_proxy_with_attributes
 
   def test_initializes_proxy_with_attributes_and_skips_mass_assignment_security_protection_when_without_protection_is_used
     @localized = @product.localized(attributes_hash, :without_protection => true)
-    assert_equal 'My Precious!', @localized.my_precious
+    if support_assign_attributes_without_protection?
+      assert_equal 'My Precious!', @localized.my_precious
+    else
+      assert_nil @localized.my_precious
+    end
     assert_equal 1, @localized.quantity
   end
 
@@ -198,7 +202,11 @@ def test_new_with_attr_protected_attributes
 
   def test_assign_attributes_skips_mass_assignment_security_protection_when_without_protection_is_used
     @localized.assign_attributes(attributes_hash, :without_protection => true)
-    assert_equal 'My Precious!', @localized.my_precious
+    if support_assign_attributes_without_protection?
+      assert_equal 'My Precious!', @localized.my_precious
+    else
+      assert_nil @localized.my_precious
+    end
     assert_equal 1, @localized.quantity
   end
 

test/test_helper.rb

@@ -16,3 +16,11 @@
 
 require "db/test_schema"
 Dir["test/models/*.rb"].each { |file| require File.expand_path(file) }
+
+class MiniTest::Unit::TestCase
+  # AR 3.0 does not have assign_attributes and without_protection option, so we
+  # are going to skip such tests in this version.
+  def support_assign_attributes_without_protection?
+    @support_assign_attributes ||= ActiveRecord::VERSION::STRING >= "3.1.0"
+  end
+end