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abf4bb8e9a
The serializer has partial specializations for all templates. It is a good basis if the connector/database requires strings close to the standard. The interpreter is unspecialized (and uses a static assert to say so). It is a good basis if the connector/database requires a different interpretation, e.g. re-writing the expression tree. The interpretable_t implements three methods for interpretation: serializing with the sqlpp::serializer_context, serializing with the database's serialization context and interpretation with the database's interpretation context.
69 lines
2.5 KiB
C++
69 lines
2.5 KiB
C++
/*
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* Copyright (c) 2013, Roland Bock
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <iostream>
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#include <sqlpp11/update.h>
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#include "Sample.h"
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#include "MockDb.h"
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#include "is_regular.h"
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DbMock db;
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DbMock::_serializer_context_t printer(std::cerr);
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int main()
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{
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test::TabBar t;
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test::TabFoo f;
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auto x = t.alpha = 7;
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auto y = t.beta = "kaesekuchen";
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auto z = t.gamma = true;
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{
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using T = decltype(update(t));
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static_assert(sqlpp::is_regular<T>::value, "type requirement");
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}
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{
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using T = decltype(update(t).set(t.gamma = false).where(t.beta != "transparent"));
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static_assert(sqlpp::is_regular<T>::value, "type requirement");
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}
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{
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using T = decltype(dynamic_update(db, t).dynamic_set(t.gamma = false).dynamic_where());
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static_assert(sqlpp::is_regular<T>::value, "type requirement");
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}
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serialize(update(t), printer).flush();
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serialize(update(t).set(t.gamma = false), printer).flush();
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serialize(update(t).set(t.gamma = false).where(t.beta != "transparent"), printer).flush();
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serialize(update(t).set(t.beta = "opaque").where(t.beta != t.beta), printer).flush();
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auto u = dynamic_update(db, t).dynamic_set(t.gamma = false).dynamic_where();
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u.add_set(t.gamma = false);
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serialize(u, printer).flush();
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return 0;
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}
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