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-rw-r--r--activerecord/CHANGELOG.md7
-rw-r--r--activerecord/lib/active_record/schema_dumper.rb3
-rw-r--r--activerecord/test/cases/adapters/postgresql/uuid_test.rb23
3 files changed, 32 insertions, 1 deletions
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index 971bef913f..ce92512be7 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,3 +1,10 @@
+* Fix the schema dump generated for tables without constraints and with
+ primary key with default value of custom PostgreSQL function result.
+
+ Fixes #16111
+
+ *Andrey Novikov*
+
* Fix the SQL generated when a `delete_all` is run on an association to not
produce an `IN` statements.
diff --git a/activerecord/lib/active_record/schema_dumper.rb b/activerecord/lib/active_record/schema_dumper.rb
index 64bc68eefd..a94364bde1 100644
--- a/activerecord/lib/active_record/schema_dumper.rb
+++ b/activerecord/lib/active_record/schema_dumper.rb
@@ -120,7 +120,8 @@ HEADER
# first dump primary key column
if @connection.respond_to?(:pk_and_sequence_for)
pk, _ = @connection.pk_and_sequence_for(table)
- elsif @connection.respond_to?(:primary_key)
+ end
+ if !pk && @connection.respond_to?(:primary_key)
pk = @connection.primary_key(table)
end
diff --git a/activerecord/test/cases/adapters/postgresql/uuid_test.rb b/activerecord/test/cases/adapters/postgresql/uuid_test.rb
index f5b199b46a..df8faff546 100644
--- a/activerecord/test/cases/adapters/postgresql/uuid_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/uuid_test.rb
@@ -87,10 +87,26 @@ class PostgresqlUUIDGenerationTest < ActiveRecord::TestCase
t.string 'name'
t.uuid 'other_uuid', default: 'uuid_generate_v4()'
end
+
+ # Create custom PostgreSQL function to generate UUIDs
+ # to test dumping tables which columns have defaults with custom functions
+ connection.execute <<-SQL
+ CREATE OR REPLACE FUNCTION my_uuid_generator() RETURNS uuid
+ AS $$ SELECT * FROM uuid_generate_v4() $$
+ LANGUAGE SQL VOLATILE;
+ SQL
+
+ # Create such a table with custom function as default value generator
+ connection.create_table('pg_uuids_2', id: :uuid, default: 'my_uuid_generator()') do |t|
+ t.string 'name'
+ t.uuid 'other_uuid_2', default: 'my_uuid_generator()'
+ end
end
teardown do
drop_table "pg_uuids"
+ drop_table 'pg_uuids_2'
+ connection.execute 'DROP FUNCTION IF EXISTS my_uuid_generator();'
end
if ActiveRecord::Base.connection.supports_extensions?
@@ -122,6 +138,13 @@ class PostgresqlUUIDGenerationTest < ActiveRecord::TestCase
assert_match(/\bcreate_table "pg_uuids", id: :uuid, default: "uuid_generate_v1\(\)"/, schema.string)
assert_match(/t\.uuid "other_uuid", default: "uuid_generate_v4\(\)"/, schema.string)
end
+
+ def test_schema_dumper_for_uuid_primary_key_with_custom_default
+ schema = StringIO.new
+ ActiveRecord::SchemaDumper.dump(connection, schema)
+ assert_match(/\bcreate_table "pg_uuids_2", id: :uuid, default: "my_uuid_generator\(\)"/, schema.string)
+ assert_match(/t\.uuid "other_uuid_2", default: "my_uuid_generator\(\)"/, schema.string)
+ end
end
end