sqlpp11/tests/core/usage/Remove.cpp

/*
 * Copyright (c) 2013-2016, Roland Bock
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 *  * Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <iostream>
#include <sqlpp11/sqlpp11.h>
#include "Sample.h"
#include "MockDb.h"
#include "is_regular.h"

int Remove(int, char* [])
{
  MockDb db = {};
  MockDb::_serializer_context_t printer = {};

  const auto t = test::TabBar{};
  const auto f = test::TabFoo{};

  {
    using T = decltype(remove_from(t));
    static_assert(sqlpp::is_regular<T>::value, "type requirement");
  }

  {
    using T = decltype(remove_from(t).where(t.beta != "transparent"));
    static_assert(sqlpp::is_regular<T>::value, "type requirement");
  }

  {
    using T = decltype(dynamic_remove_from(db, t).dynamic_using().dynamic_where());
    static_assert(sqlpp::is_regular<T>::value, "type requirement");
  }

  serialize(remove_from(t), printer).str();
  serialize(remove_from(t).where(t.beta != "transparent"), printer).str();
  serialize(remove_from(t).using_(t), printer).str();
  serialize(remove_from(t).using_(f), printer).str();
  auto r = dynamic_remove_from(db, t).dynamic_using().dynamic_where();
  r.using_.add(t);
  r.where.add(t.beta != "transparent");
  printer.reset();
  std::cerr << serialize(r, printer).str() << std::endl;
  printer.reset();
  std::cerr << serialize(remove_from(t).unconditionally(), printer).str() << std::endl;

  db(r);

  remove_from(t).where(t.beta.in(select(f.delta).from(f).unconditionally()));

  return 0;
}