From a3cdd92a9ca325280b177dd6489d83f9f1b27a4e Mon Sep 17 00:00:00 2001
From: Aaron Patterson <aaron.patterson@gmail.com>
Date: Thu, 8 Jul 2010 16:09:21 -0700
Subject: [PATCH] execute raises an exception on error

---
 ext/mysql2/statement.c        | 3 ++-
 spec/mysql2/statement_spec.rb | 5 +++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/ext/mysql2/statement.c b/ext/mysql2/statement.c
index a12ee06..21eb057 100644
--- a/ext/mysql2/statement.c
+++ b/ext/mysql2/statement.c
@@ -51,7 +51,8 @@ static VALUE execute(VALUE self)
   MYSQL_STMT * stmt;
   Data_Get_Struct(self, MYSQL_STMT, stmt);
 
-  mysql_stmt_execute(stmt);
+  if(mysql_stmt_execute(stmt))
+    rb_raise(cMysql2Error, "%s", mysql_stmt_error(stmt));
 
   return self;
 }
diff --git a/spec/mysql2/statement_spec.rb b/spec/mysql2/statement_spec.rb
index d5670d3..a505860 100644
--- a/spec/mysql2/statement_spec.rb
+++ b/spec/mysql2/statement_spec.rb
@@ -50,4 +50,9 @@ describe Mysql2::Statement do
     stmt.prepare 'SELECT 1'
     stmt.execute.should == stmt
   end
+
+  it "should raise an exception on error" do
+    stmt = @client.create_statement
+    lambda { stmt.execute }.should raise_error(Mysql2::Error)
+  end
 end