Let ActiveModel instances define partial paths.

Deprecate ActiveModel::Name#partial_path. Now you
should call #to_path directly on ActiveModel
instances.

2 files changed, 41 insertions, 0 deletions

diff --git a/actionpack/test/template/form_helper_test.rb b/actionpack/test/template/form_helper_test.rb
index aca2dc9e4d..71a2c46d92 100644
--- a/actionpack/test/template/form_helper_test.rb
+++ b/actionpack/test/template/form_helper_test.rb
@@ -1891,6 +1891,17 @@ class FormHelperTest < ActionView::TestCase
     assert_equal LabelledFormBuilder, klass
   end
 
+  def test_form_for_with_labelled_builder_path
+    path = nil
+
+    form_for(@post, :builder => LabelledFormBuilder) do |f|
+      path = f.to_path
+      ''
+    end
+
+    assert_equal 'labelled_form', path
+  end
+
   class LabelledFormBuilderSubclass < LabelledFormBuilder; end
 
   def test_form_for_with_labelled_builder_with_nested_fields_for_with_custom_builder
diff --git a/actionpack/test/template/render_test.rb b/actionpack/test/template/render_test.rb
index 68b2ed45d1..0b91e55091 100644
--- a/actionpack/test/template/render_test.rb
+++ b/actionpack/test/template/render_test.rb
@@ -201,6 +201,36 @@ module RenderTestCases
       @controller_view.render(customers, :greeting => "Hello")
   end
 
+  class CustomerWithDeprecatedPartialPath
+    attr_reader :name
+
+    def self.model_name
+      Struct.new(:partial_path).new("customers/customer")
+    end
+
+    def initialize(name)
+      @name = name
+    end
+  end
+
+  def test_render_partial_using_object_with_deprecated_partial_path
+    assert_deprecated(/#model_name.*#partial_path.*#to_path/) do
+      assert_equal "Hello: nertzy",
+        @controller_view.render(CustomerWithDeprecatedPartialPath.new("nertzy"), :greeting => "Hello")
+    end
+  end
+
+  def test_render_partial_using_collection_with_deprecated_partial_path
+    assert_deprecated(/#model_name.*#partial_path.*#to_path/) do
+      customers = [
+        CustomerWithDeprecatedPartialPath.new("nertzy"),
+        CustomerWithDeprecatedPartialPath.new("peeja")
+      ]
+      assert_equal "Hello: nertzyHello: peeja",
+        @controller_view.render(customers, :greeting => "Hello")
+    end
+  end
+
   # TODO: The reason for this test is unclear, improve documentation
   def test_render_partial_and_fallback_to_layout
     assert_equal "Before (Josh)\n\nAfter", @view.render(:partial => "test/layout_for_partial", :locals => { :name => "Josh" })