EncryptedAttributeType#type should return cast_type's type. (rails#52247)

Author: nashby

activerecord/CHANGELOG.md

@@ -1,3 +1,8 @@
+*   Fix `ActiveRecord::Encryption::EncryptedAttributeType#type` to return
+    actual cast type.
+
+    *Vasiliy Ermolovich*
+
 *   SQLite3Adapter: Bulk insert fixtures.
 
     Previously one insert command was executed for each fixture, now they are

activerecord/lib/active_record/encryption/encrypted_attribute_type.rb

@@ -7,13 +7,13 @@ module Encryption
     # This is the central piece that connects the encryption system with +encrypts+ declarations in the
     # model classes. Whenever you declare an attribute as encrypted, it configures an +EncryptedAttributeType+
     # for that attribute.
-    class EncryptedAttributeType < ::ActiveRecord::Type::Text
+    class EncryptedAttributeType < ::ActiveModel::Type::Value
       include ActiveModel::Type::Helpers::Mutable
 
       attr_reader :scheme, :cast_type
 
       delegate :key_provider, :downcase?, :deterministic?, :previous_schemes, :with_context, :fixed?, to: :scheme
-      delegate :accessor, to: :cast_type
+      delegate :accessor, :type, to: :cast_type
 
       # === Options
       #

activerecord/test/cases/encryption/encryptable_record_test.rb

@@ -418,6 +418,11 @@ def name
     assert EncryptedBookWithCustomCompressor.create!(name: name).name.start_with?("[compressed]")
   end
 
+  test "type method returns cast type" do
+    assert_equal :string, EncryptedBook.type_for_attribute(:name).type
+    assert_equal :text, EncryptedPost.type_for_attribute(:body).type
+  end
+
   private
     def build_derived_key_provider_with(hash_digest_class)
       ActiveRecord::Encryption.with_encryption_context(key_generator: ActiveRecord::Encryption::KeyGenerator.new(hash_digest_class: hash_digest_class)) do