mirror of
https://github.com/rbock/sqlpp11.git
synced 2024-11-15 20:31:16 +08:00
5e96551f83
- `.from(t1, t2)` produces an unconditional join if you forget to add a condition in the .where() sqlpp11 therefore now deprecates unconditional joins. - more often than not, writing something like `where(name == "doe")`, you meant to write `where(t.name == "doe")`. It is hard to find bugs when the former expression compiles because you happen to have a variable `name` in the current scope as well. sqlpp11 therefore now deprecates `.where(bool)` and disallows raw bool values boolean expression like `something and bool` wrap bools in sqlpp::value(), if you REALLY want a bool value here
54 lines
2.1 KiB
C++
54 lines
2.1 KiB
C++
/*
|
|
* Copyright (c) 2013-2015, 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 "Sample.h"
|
|
#include "MockDb.h"
|
|
#include <sqlpp11/select.h>
|
|
#include <sqlpp11/alias_provider.h>
|
|
#include <iostream>
|
|
|
|
int With(int, char* [])
|
|
{
|
|
MockDb db;
|
|
MockDb::_serializer_context_t printer = {};
|
|
|
|
const auto t = test::TabBar{};
|
|
|
|
auto x = sqlpp::cte(sqlpp::alias::x).as(select(all_of(t)).from(t));
|
|
|
|
db(with(x)(select(x.alpha).from(x).unconditionally()));
|
|
|
|
auto y0 = sqlpp::cte(sqlpp::alias::y).as(select(all_of(t)).from(t));
|
|
auto y = y0.union_all(select(all_of(y0)).from(y0).unconditionally());
|
|
|
|
std::cout << serialize(y, printer).str() << std::endl;
|
|
printer.reset();
|
|
std::cout << serialize(from_table(y), printer).str() << std::endl;
|
|
|
|
db(with(y)(select(y.alpha).from(y).unconditionally()));
|
|
|
|
return 0;
|
|
}
|