Remove deprecated form_for with strings or symbols

Signed-off-by: Santiago Pastorino <santiago@wyeworks.com>

actionpack/lib/action_view/helpers/form_helper.rb

@@ -303,15 +303,9 @@ module ActionView
 
         options[:html] ||= {}
 
-        case record
-        when String, Symbol
-          object_name = record
-          object      = nil
-        else
-          object      = record.is_a?(Array) ? record.last : record
-          object_name = options[:as] || ActiveModel::Naming.param_key(object)
-          apply_form_for_options!(record, options)
-        end
+        object      = record.is_a?(Array) ? record.last : record
+        object_name = options[:as] || ActiveModel::Naming.param_key(object)
+        apply_form_for_options!(record, options)
 
         options[:html][:remote] = options.delete(:remote)
         builder = options[:parent_builder] = instantiate_builder(object_name, object, options, &proc)

actionpack/test/template/erb/form_for_test.rb

@@ -1,10 +1,11 @@
 require "abstract_unit"
 require "template/erb/helper"
+require "controller/fake_models"
 
 module ERBTest
   class TagHelperTest < BlockTestCase
     test "form_for works" do
-      output = render_content "form_for(:staticpage, :url => {:controller => 'blah', :action => 'update'})", ""
+      output = render_content "form_for(Post.new, :url => {:controller => 'blah', :action => 'update'})", ""
       assert_match %r{<form.*action="/blah/update".*method="post">.*</form>}, output
     end
   end

actionpack/test/template/erb/helper.rb

@@ -4,6 +4,8 @@ module ERBTest
     include ActionView::Helpers::TagHelper
     include ActionView::Helpers::JavaScriptHelper
     include ActionView::Helpers::FormHelper
+    include ActionView::Context
+    include ActionController::RecordIdentifier
 
     attr_accessor :output_buffer, :controller
 
@@ -20,4 +22,4 @@ module ERBTest
       "<%= #{str} do %>#{rest}<% end %>"
     end
   end
-end
+end

actionpack/test/template/form_helper_test.rb

@@ -781,23 +781,6 @@ class FormHelperTest < ActionView::TestCase
     assert_dom_equal expected, output_buffer
   end
 
-  def test_form_for_without_object
-    form_for(:post, :html => { :id => 'create-post' }) do |f|
-      concat f.text_field(:title)
-      concat f.text_area(:body)
-      concat f.check_box(:secret)
-    end
-
-    expected = whole_form("/", "create-post") do
-      "<input name='post[title]' size='30' type='text' id='post_title' value='Hello World' />" +
-      "<textarea name='post[body]' id='post_body' rows='20' cols='40'>Back to the hill and over it again!</textarea>" +
-      "<input name='post[secret]' type='hidden' value='0' />" +
-      "<input name='post[secret]' checked='checked' type='checkbox' id='post_secret' value='1' />"
-    end
-
-    assert_dom_equal expected, output_buffer
-  end
-
   def test_form_for_with_index
     form_for(@post, :as => "post[]") do |f|
       concat f.label(:title)
@@ -867,22 +850,6 @@ class FormHelperTest < ActionView::TestCase
     I18n.locale = old_locale
   end
 
-  def test_submit_without_object_and_locale_strings
-    old_locale, I18n.locale = I18n.locale, :submit
-
-    form_for(:post) do |f|
-      concat f.submit :class => "extra"
-    end
-
-    expected = whole_form do
-      "<input name='commit' class='extra' id='post_submit' type='submit' value='Save changes' />"
-    end
-
-    assert_dom_equal expected, output_buffer
-  ensure
-    I18n.locale = old_locale
-  end
-
   def test_submit_with_object_and_nested_lookup
     old_locale, I18n.locale = I18n.locale, :submit