Don't inspect unloaded associations. Closes #2905.

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@5478 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activerecord/CHANGELOG

@@ -1,5 +1,7 @@
 *SVN*
 
+* Don't inspect unloaded associations.  #2905 [lmarlow]
+
 * SQLite: use AUTOINCREMENT primary key in >= 3.1.0.  #6588 [careo]
 
 * Cache inheritance_column.  #6592 [Stefan Kaes]

activerecord/lib/active_record/associations/association_proxy.rb

@@ -72,6 +72,10 @@ module ActiveRecord
         loaded
       end
       
+      def inspect
+        loaded? ? @target.inspect : "<#{@reflection.name} not loaded yet>"
+      end
+
       protected
         def dependent?
           @reflection.options[:dependent] || false

activerecord/test/associations_test.rb

@@ -87,6 +87,35 @@ class AssociationProxyTest < Test::Unit::TestCase
     david.posts_with_extension.first   # force load target
     assert_equal  david.posts_with_extension, david.posts_with_extension.testing_proxy_target
   end
+
+  def test_inspect_does_not_load_target
+    david = authors(:david)
+    not_loaded_string = '<posts not loaded yet>'
+    not_loaded_re = Regexp.new(not_loaded_string)
+
+    2.times do
+      assert !david.posts.loaded?, "Posts should not be loaded yet"
+      assert_match not_loaded_re, david.inspect
+      assert_equal not_loaded_string, david.posts.inspect
+
+      assert !david.posts.empty?, "There should be more than one post"
+      assert !david.posts.loaded?, "Posts should still not be loaded yet"
+      assert_match not_loaded_re, david.inspect
+      assert_equal not_loaded_string, david.posts.inspect
+
+      assert !david.posts.find(:all).empty?, "There should be more than one post"
+      assert !david.posts.loaded?, "Posts should still not be loaded yet"
+      assert_match not_loaded_re, david.inspect
+      assert_equal not_loaded_string, david.posts.inspect
+
+      assert !david.posts(true).empty?, "There should be more than one post"
+      assert david.posts.loaded?, "Posts should be loaded now"
+      assert_no_match  not_loaded_re, david.inspect
+      assert_not_equal not_loaded_string, david.posts.inspect
+
+      david.reload
+    end
+  end
 end
 
 class HasOneAssociationsTest < Test::Unit::TestCase