diff options
Diffstat (limited to 'activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb')
-rw-r--r-- | activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb index 4370f27d6b..470c9c6ef3 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb @@ -1,6 +1,7 @@ require 'active_record/connection_adapters/abstract_adapter' require 'active_support/core_ext/object/blank' require 'active_record/connection_adapters/statement_pool' +require 'arel/visitors/bind_visitor' # Make sure we're using pg high enough for PGResult#values gem 'pg', '~> 0.11' @@ -303,11 +304,23 @@ module ActiveRecord end end + class BindSubstitution < Arel::Visitors::PostgreSQL # :nodoc: + include Arel::Visitors::BindVisitor + end + # Initializes and connects a PostgreSQL adapter. def initialize(connection, logger, connection_parameters, config) super(connection, logger) + + if config.fetch(:prepared_statements) { true } + @visitor = Arel::Visitors::PostgreSQL.new self + else + @visitor = BindSubstitution.new self + end + + connection_parameters.delete :prepared_statements + @connection_parameters, @config = connection_parameters, config - @visitor = Arel::Visitors::PostgreSQL.new self # @local_tz is initialized as nil to avoid warnings when connect tries to use it @local_tz = nil @@ -520,7 +533,7 @@ module ActiveRecord # DATABASE STATEMENTS ====================================== def explain(arel, binds = []) - sql = "EXPLAIN #{to_sql(arel)}" + sql = "EXPLAIN #{to_sql(arel, binds)}" ExplainPrettyPrinter.new.pp(exec_query(sql, 'EXPLAIN', binds)) end |