From 9a4e183fe9f81365f7815c391512b3d46622d8c8 Mon Sep 17 00:00:00 2001 From: Aaron Patterson Date: Mon, 22 Sep 2014 14:57:07 -0700 Subject: add a truncate method to the connection it doesn't work on SQLite3 since it doesn't support truncate, but that's OK. If you call truncate on the connection, you're now bound to that database (same as if you use hstore or any other db specific feature). --- .../connection_adapters/abstract/database_statements.rb | 5 +++++ .../lib/active_record/connection_adapters/abstract_mysql_adapter.rb | 4 ++++ .../lib/active_record/connection_adapters/postgresql_adapter.rb | 4 ++++ 3 files changed, 13 insertions(+) (limited to 'activerecord/lib/active_record') diff --git a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb index 98e96099cb..ff8b3e9890 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb @@ -83,6 +83,11 @@ module ActiveRecord exec_query(sql, name, binds) end + # Executes the truncate statement. + def truncate(table_name, name = nil) + raise NotImplementedError + end + # Executes update +sql+ statement in the context of this connection using # +binds+ as the bind substitutes. +name+ is logged along with # the executed +sql+ statement. diff --git a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb index 037fb69dfb..e4cfe843a8 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb @@ -389,6 +389,10 @@ module ActiveRecord end end + def truncate(table_name, name = nil) + execute "TRUNCATE TABLE #{quote_table_name(table_name)}", name + end + def table_exists?(name) return false unless name.present? return true if tables(nil, nil, name).any? diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb index 80461f3910..0d74cb6707 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb @@ -255,6 +255,10 @@ module ActiveRecord @statements.clear end + def truncate(table_name, name = nil) + exec_query "TRUNCATE TABLE #{quote_table_name(table_name)}", name, [] + end + # Is this connection alive and ready for queries? def active? @connection.query 'SELECT 1' -- cgit v1.2.3