From 043ce35b18662e46cb5b0d9cf203f4da4eefc421 Mon Sep 17 00:00:00 2001
From: Daniel Colson <danieljamescolson@gmail.com>
Date: Wed, 7 Feb 2018 16:14:45 -0500
Subject: Add ActiveModel::Attributes#attributes

This starts to fix #31832.
ActiveModel::Attributes includes ActiveModel::AttributeMethods,
which requires an `#attributes` method that returns a hash with string keys.
---
 activemodel/lib/active_model/attributes.rb |  4 ++++
 activemodel/test/cases/attributes_test.rb  | 20 ++++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/activemodel/lib/active_model/attributes.rb b/activemodel/lib/active_model/attributes.rb
index 046ae67ad7..4083bf827b 100644
--- a/activemodel/lib/active_model/attributes.rb
+++ b/activemodel/lib/active_model/attributes.rb
@@ -66,6 +66,10 @@ module ActiveModel
       super
     end
 
+    def attributes
+      @attributes.to_hash
+    end
+
     private
 
       def write_attribute(attr_name, value)
diff --git a/activemodel/test/cases/attributes_test.rb b/activemodel/test/cases/attributes_test.rb
index 7c1d813ce0..5483fb101d 100644
--- a/activemodel/test/cases/attributes_test.rb
+++ b/activemodel/test/cases/attributes_test.rb
@@ -47,6 +47,26 @@ module ActiveModel
       assert_equal true, data.boolean_field
     end
 
+    test "reading attributes" do
+      data = ModelForAttributesTest.new(
+        integer_field: 1.1,
+        string_field: 1.1,
+        decimal_field: 1.1,
+        boolean_field: 1.1
+      )
+
+      expected_attributes = {
+        integer_field: 1,
+        string_field: "1.1",
+        decimal_field: BigDecimal("1.1"),
+        string_with_default: "default string",
+        date_field: Date.new(2016, 1, 1),
+        boolean_field: true
+      }.stringify_keys
+
+      assert_equal expected_attributes, data.attributes
+    end
+
     test "nonexistent attribute" do
       assert_raise ActiveModel::UnknownAttributeError do
         ModelForAttributesTest.new(nonexistent: "nonexistent")
-- 
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