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-rw-r--r--activerecord/CHANGELOG.md4
-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb5
-rw-r--r--activerecord/test/cases/adapters/postgresql/array_test.rb12
3 files changed, 19 insertions, 2 deletions
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index 3db7dbd425..8e262b5fd7 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,3 +1,7 @@
+* `change_column` for PostgreSQL adapter respects the `:array` option.
+
+ *Yves Senn*
+
* Remove deprecation warning from `attribute_missing` for attributes that are columns.
*Arun Agrawal*
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb
index a651b6c32e..3fce8de1ba 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb
@@ -384,8 +384,9 @@ module ActiveRecord
def change_column(table_name, column_name, type, options = {})
clear_cache!
quoted_table_name = quote_table_name(table_name)
-
- execute "ALTER TABLE #{quoted_table_name} ALTER COLUMN #{quote_column_name(column_name)} TYPE #{type_to_sql(type, options[:limit], options[:precision], options[:scale])}"
+ sql_type = type_to_sql(type, options[:limit], options[:precision], options[:scale])
+ sql_type << "[]" if options[:array]
+ execute "ALTER TABLE #{quoted_table_name} ALTER COLUMN #{quote_column_name(column_name)} TYPE #{sql_type}"
change_column_default(table_name, column_name, options[:default]) if options_include_default?(options)
change_column_null(table_name, column_name, options[:null], options[:default]) if options.key?(:null)
diff --git a/activerecord/test/cases/adapters/postgresql/array_test.rb b/activerecord/test/cases/adapters/postgresql/array_test.rb
index 61a3a2ba0f..e5e877f0b0 100644
--- a/activerecord/test/cases/adapters/postgresql/array_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/array_test.rb
@@ -27,6 +27,18 @@ class PostgresqlArrayTest < ActiveRecord::TestCase
assert @column.array
end
+ def test_change_column_with_array
+ @connection.add_column :pg_arrays, :snippets, :string, array: true, default: []
+ @connection.change_column :pg_arrays, :snippets, :text, array: true, default: "{}"
+
+ PgArray.reset_column_information
+ column = PgArray.columns.find { |c| c.name == 'snippets' }
+
+ assert_equal :text, column.type
+ assert_equal [], column.default
+ assert column.array
+ end
+
def test_type_cast_array
assert @column