From 9f549212c3b6c8ae4684da61e03a04da9f341fad Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ce=CC=81dric=20FABIANSKI?= <cfabianski@leadformance.com>
Date: Wed, 16 Jan 2013 20:08:07 +0100
Subject: Unprepared Visitor + unprepared_statement

---
 .../lib/active_record/connection_adapters/abstract_adapter.rb | 11 +++++++++++
 .../connection_adapters/abstract_mysql_adapter.rb             |  2 +-
 .../active_record/connection_adapters/postgresql_adapter.rb   |  2 +-
 .../lib/active_record/connection_adapters/sqlite3_adapter.rb  |  2 +-
 4 files changed, 14 insertions(+), 3 deletions(-)

(limited to 'activerecord/lib/active_record')

diff --git a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
index ff9de712bc..7949bcb5ce 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb
@@ -118,6 +118,17 @@ module ActiveRecord
         @in_use = false
       end
 
+      def unprepared_visitor
+        self.class::BindSubstitution.new self
+      end
+
+      def unprepared_statement
+        old, @visitor = @visitor, unprepared_visitor
+        yield
+      ensure
+        @visitor = old
+      end
+
       # Returns the human-readable name of the adapter. Use mixed case - one
       # can always use downcase if needed.
       def adapter_name
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 be4a30aed9..f88f5742a8 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
@@ -143,7 +143,7 @@ module ActiveRecord
         if self.class.type_cast_config_to_boolean(config.fetch(:prepared_statements) { true })
           @visitor = Arel::Visitors::MySQL.new self
         else
-          @visitor = BindSubstitution.new self
+          @visitor = unprepared_visitor
         end
       end
 
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
index c91e1b3fb9..691b2ab37f 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
@@ -489,7 +489,7 @@ module ActiveRecord
         if self.class.type_cast_config_to_boolean(config.fetch(:prepared_statements) { true })
           @visitor = Arel::Visitors::PostgreSQL.new self
         else
-          @visitor = BindSubstitution.new self
+          @visitor = unprepared_visitor
         end
 
         @connection_parameters, @config = connection_parameters, config
diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb
index 981c4c96a0..84fa1c7d5a 100644
--- a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb
@@ -113,7 +113,7 @@ module ActiveRecord
         if self.class.type_cast_config_to_boolean(config.fetch(:prepared_statements) { true })
           @visitor = Arel::Visitors::SQLite.new self
         else
-          @visitor = BindSubstitution.new self
+          @visitor = unprepared_visitor
         end
       end
 
-- 
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