Ticket #10797: 10797-005.patch

a/actionpack/lib/action_controller/request.rb

@@ -682 +682 @@
-        elsif top.is_a? Hash
-          key = CGI.unescape(key)
-          parent << (@top = {}) if top.key?(key) && parent.is_a?(Array)
-
+
+
-        else
-          raise ArgumentError, "Don't know what to do: top is #{top.inspect}"
-        end

a/actionpack/test/controller/request_test.rb

@@ -711 +711 @@
-    expected = {"a" => [{"b" => {"c" => "d"}}]}
-    assert_equal expected, ActionController::AbstractRequest.parse_request_parameters(input)
-  end
+
+  def test_parse_params_with_complex_nesting
+    input = { "a[][b][c][][d][]" => %w(e) }
+    expected = {"a" => [{"b" => {"c" => [{"d" => ["e"]}]}}]}
+    assert_equal expected, ActionController::AbstractRequest.parse_request_parameters(input)
+  end
-end
-
-