From 8338bb049db44d9b470b2a76acc5853b92915238 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 17 Oct 2012 09:31:54 +0200
Subject: Add example for prepared query usage

---
 prepared/database.hxx | 94 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 prepared/database.hxx

(limited to 'prepared/database.hxx')

diff --git a/prepared/database.hxx b/prepared/database.hxx
new file mode 100644
index 0000000..2e9316a
--- /dev/null
+++ b/prepared/database.hxx
@@ -0,0 +1,94 @@
+// file      : prepared/database.hxx
+// copyright : not copyrighted - public domain
+
+//
+// Create concrete database instance based on the DATABASE_* macros.
+//
+
+#ifndef DATABASE_HXX
+#define DATABASE_HXX
+
+#include <string>
+#include <memory>   // std::auto_ptr
+#include <cstdlib>  // std::exit
+#include <iostream>
+
+#include <odb/database.hxx>
+
+#if defined(DATABASE_MYSQL)
+#  include <odb/mysql/database.hxx>
+#elif defined(DATABASE_SQLITE)
+#  include <odb/connection.hxx>
+#  include <odb/transaction.hxx>
+#  include <odb/schema-catalog.hxx>
+#  include <odb/sqlite/database.hxx>
+#elif defined(DATABASE_PGSQL)
+#  include <odb/pgsql/database.hxx>
+#elif defined(DATABASE_ORACLE)
+#  include <odb/oracle/database.hxx>
+#elif defined(DATABASE_MSSQL)
+#  include <odb/mssql/database.hxx>
+#else
+#  error unknown database; did you forget to define the DATABASE_* macros?
+#endif
+
+inline std::auto_ptr<odb::database>
+create_database (int& argc, char* argv[])
+{
+  using namespace std;
+  using namespace odb::core;
+
+  if (argc > 1 && argv[1] == string ("--help"))
+  {
+    cout << "Usage: " << argv[0] << " [options]" << endl
+         << "Options:" << endl;
+
+#if defined(DATABASE_MYSQL)
+    odb::mysql::database::print_usage (cout);
+#elif defined(DATABASE_SQLITE)
+    odb::sqlite::database::print_usage (cout);
+#elif defined(DATABASE_PGSQL)
+    odb::pgsql::database::print_usage (cout);
+#elif defined(DATABASE_ORACLE)
+    odb::oracle::database::print_usage (cout);
+#elif defined(DATABASE_MSSQL)
+    odb::mssql::database::print_usage (cout);
+#endif
+
+    exit (0);
+  }
+
+#if defined(DATABASE_MYSQL)
+  auto_ptr<database> db (new odb::mysql::database (argc, argv));
+#elif defined(DATABASE_SQLITE)
+  auto_ptr<database> db (
+    new odb::sqlite::database (
+      argc, argv, false, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE));
+
+  // Create the database schema. Due to bugs in SQLite foreign key
+  // support for DDL statements, we need to temporarily disable
+  // foreign keys.
+  //
+  {
+    connection_ptr c (db->connection ());
+
+    c->execute ("PRAGMA foreign_keys=OFF");
+
+    transaction t (c->begin ());
+    schema_catalog::create_schema (*db);
+    t.commit ();
+
+    c->execute ("PRAGMA foreign_keys=ON");
+  }
+#elif defined(DATABASE_PGSQL)
+  auto_ptr<database> db (new odb::pgsql::database (argc, argv));
+#elif defined(DATABASE_ORACLE)
+  auto_ptr<database> db (new odb::oracle::database (argc, argv));
+#elif defined(DATABASE_MSSQL)
+  auto_ptr<database> db (new odb::mssql::database (argc, argv));
+#endif
+
+  return db;
+}
+
+#endif // DATABASE_HXX
-- 
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