From fb80a289ab6e2f13416f321bc64b93e3edc4f693 Mon Sep 17 00:00:00 2001
From: Vasiliy Ermolovich <younash@gmail.com>
Date: Thu, 15 Feb 2018 09:31:18 +0300
Subject: [PATCH] Support SimpleForm/Formtastic forms without object.

---
 CHANGELOG.md                       | 1 +
 lib/enumerize/hooks/formtastic.rb  | 2 +-
 lib/enumerize/hooks/simple_form.rb | 2 +-
 test/formtastic_test.rb            | 8 ++++++++
 test/simple_form_test.rb           | 8 ++++++++
 5 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6e8314ab..94216b20 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 ### enhancements
 
 ### bug fix
+  Fix issue with SimpleForm/Formtastic forms without object. (by [@nashby](https://github.com/nashby))
 
 ## 2.2.0 (February 13, 2018)
 
diff --git a/lib/enumerize/hooks/formtastic.rb b/lib/enumerize/hooks/formtastic.rb
index 4fb6549d..6d69c43c 100644
--- a/lib/enumerize/hooks/formtastic.rb
+++ b/lib/enumerize/hooks/formtastic.rb
@@ -5,7 +5,7 @@ module Hooks
     module FormtasticFormBuilderExtension
 
       def input(method, options={})
-        klass = object.to_model.class
+        klass = object && object.to_model.class
 
         if klass.respond_to?(:enumerized_attributes) && (attr = klass.enumerized_attributes[method])
           options[:collection] ||= attr.options
diff --git a/lib/enumerize/hooks/simple_form.rb b/lib/enumerize/hooks/simple_form.rb
index 28402867..07f5ee07 100644
--- a/lib/enumerize/hooks/simple_form.rb
+++ b/lib/enumerize/hooks/simple_form.rb
@@ -17,7 +17,7 @@ def input_field(attribute_name, options={})
       private
 
       def add_input_options_for_enumerized_attribute(attribute_name, options)
-        klass = object.to_model.class
+        klass = object && object.to_model.class
 
         if klass.respond_to?(:enumerized_attributes) && (attr = klass.enumerized_attributes[attribute_name])
           options[:collection] ||= attr.options
diff --git a/test/formtastic_test.rb b/test/formtastic_test.rb
index 86494db0..9e68cc8d 100644
--- a/test/formtastic_test.rb
+++ b/test/formtastic_test.rb
@@ -124,4 +124,12 @@ def persisted?
 
     assert_select 'input[type=text]'
   end
+
+  it 'does not affect forms without object' do
+    concat(semantic_form_for('') do |f|
+      f.input(:name)
+    end)
+
+    assert_select 'input[type=text]'
+  end
 end
diff --git a/test/simple_form_test.rb b/test/simple_form_test.rb
index 148b30f6..97675463 100644
--- a/test/simple_form_test.rb
+++ b/test/simple_form_test.rb
@@ -128,4 +128,12 @@ def persisted?
 
     assert_select 'input.string'
   end
+
+  it 'does not affect forms without object' do
+    concat(simple_form_for('') do |f|
+      f.input(:name)
+    end)
+
+    assert_select 'input.string'
+  end
 end