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-rw-r--r--activerecord/CHANGELOG.md7
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb13
-rw-r--r--activerecord/test/cases/adapters/postgresql/array_test.rb6
3 files changed, 25 insertions, 1 deletions
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index f62d29b5bf..3eac34d65e 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,3 +1,10 @@
+* PostgreSQL array columns will now respect the encoding of strings contained
+ in the array.
+
+ Fixes #26326.
+
+ *Sean Griffin*
+
* Inverse association instances will now be set before `after_find` or
`after_initialize` callbacks are run.
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb
index 1a66afb23a..b969503178 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb
@@ -33,7 +33,11 @@ module ActiveRecord
def serialize(value)
if value.is_a?(::Array)
- @pg_encoder.encode(type_cast_array(value, :serialize))
+ result = @pg_encoder.encode(type_cast_array(value, :serialize))
+ if encoding = determine_encoding_of_strings(value)
+ result.encode!(encoding)
+ end
+ result
else
super
end
@@ -63,6 +67,13 @@ module ActiveRecord
@subtype.public_send(method, value)
end
end
+
+ def determine_encoding_of_strings(value)
+ case value
+ when ::Array then determine_encoding_of_strings(value.first)
+ when ::String then value.encoding
+ end
+ end
end
end
end
diff --git a/activerecord/test/cases/adapters/postgresql/array_test.rb b/activerecord/test/cases/adapters/postgresql/array_test.rb
index 60da9d8859..97960b6c51 100644
--- a/activerecord/test/cases/adapters/postgresql/array_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/array_test.rb
@@ -311,6 +311,12 @@ class PostgresqlArrayTest < ActiveRecord::PostgreSQLTestCase
assert_equal ["has already been taken"], e2.errors[:tags], "Should have uniqueness message for tags"
end
+ def test_encoding_arrays_of_utf8_strings
+ string_with_utf8 = "novĂ˝"
+ assert_equal [string_with_utf8], @type.deserialize(@type.serialize([string_with_utf8]))
+ assert_equal [[string_with_utf8]], @type.deserialize(@type.serialize([[string_with_utf8]]))
+ end
+
private
def assert_cycle(field, array)
# test creation