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Added schema qualified tables`

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rbock 2015-04-30 21:32:50 +02:00
parent 49a538ce52
commit a6a969a4d8
7 changed files with 168 additions and 2 deletions
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56
include/sqlpp11/schema.h Normal file
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@ -0,0 +1,56 @@
/*
* 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.
*/
#ifndef SQLPP_SCHEMA_H
#define SQLPP_SCHEMA_H
#include <string>
#include <sqlpp11/serializer.h>
namespace sqlpp
{
struct schema_t
{
std::string _name;
};
template<typename Context>
struct serializer_t<Context, schema_t>
{
using _serialize_check = consistent_t;
using T = schema_t;
static Context& _(const T& t, Context& context)
{
context << t._name;
return context;
}
};
}
#endif

94
include/sqlpp11/schema_qualified_table.h Normal file
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@ -0,0 +1,94 @@
/*
* 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.
*/
#ifndef SQLPP_SCHEMA_QUALIFIED_TABLE_H
#define SQLPP_SCHEMA_QUALIFIED_TABLE_H
#include <sqlpp11/column_fwd.h>
#include <sqlpp11/interpret.h>
#include <sqlpp11/type_traits.h>
#include <sqlpp11/schema.h>
#include <sqlpp11/table_alias.h>
#include <sqlpp11/detail/type_set.h>
namespace sqlpp
{
template<typename Table>
struct schema_qualified_table_t
{
using _traits = make_traits<value_type_of<Table>, tag::is_table>;
using _nodes = detail::type_vector<>;
using _required_ctes = detail::type_set<>;
using _provided_tables = detail::type_set<>;
schema_qualified_table_t(schema_t schema, Table table):
_schema(schema),
_table(table)
{}
template<typename AliasProvider>
typename Table::template _foreign_table_alias_t<AliasProvider, schema_qualified_table_t> as(const AliasProvider&) const
{
return {*this};
}
schema_t _schema;
Table _table;
};
template<typename Context, typename Table>
struct serializer_t<Context, schema_qualified_table_t<Table>>
{
using _serialize_check = serialize_check_of<Context, Table>;
using T = schema_qualified_table_t<Table>;
static Context& _(const T& t, Context& context)
{
serialize(t._schema, context);
context << '.';
serialize(t._table, context);
return context;
}
};
template<typename Table>
auto schema_qualified_table(schema_t schema, Table table)
-> schema_qualified_table_t<Table>
{
static_assert(required_tables_of<Table>::size::value == 0, "schema qualified tables must not depend on other tables");
static_assert(required_ctes_of<Table>::size::value == 0, "schema qualified tables must not depend on common table expressions");
static_assert(is_raw_table_t<Table>::value, "table must be a raw table, i.e. not an alias or common table expression");
return {schema, table};
}
}
#endif

1
include/sqlpp11/sqlpp11.h
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@ -36,6 +36,7 @@
#include <sqlpp11/functions.h>
#include <sqlpp11/transaction.h>
#include <sqlpp11/boolean_expression.h>
#include <sqlpp11/schema_qualified_table.h>
#endif

5
include/sqlpp11/table.h
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@ -44,7 +44,7 @@ namespace sqlpp
public table_base_t,
public member_t<ColumnSpec, column_t<Table, ColumnSpec>>...
{
using _traits = make_traits<no_value_t, tag::is_table>;
using _traits = make_traits<no_value_t, tag::is_raw_table, tag::is_table>;
using _nodes = detail::type_vector<>;
using _provided_tables = detail::type_set<Table>;
@ -52,10 +52,11 @@ namespace sqlpp
static_assert(sizeof...(ColumnSpec), "at least one column required per table");
using _required_insert_columns = typename detail::make_type_set_if<require_insert_t, column_t<Table, ColumnSpec>...>::type;
using _column_tuple_t = std::tuple<column_t<Table, ColumnSpec>...>;
template<typename AliasProvider, typename T>
using _foreign_table_alias_t = table_alias_t<AliasProvider, T, ColumnSpec...>;
template<typename AliasProvider>
using _alias_t = table_alias_t<AliasProvider, Table, ColumnSpec...>;
template<typename T>
join_t<inner_join_t, Table, T> join(T t) const
{

1
include/sqlpp11/type_traits.h
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@ -101,6 +101,7 @@ namespace sqlpp
SQLPP_VALUE_TRAIT_GENERATOR(is_missing)
SQLPP_VALUE_TRAIT_GENERATOR(is_return_value)
SQLPP_VALUE_TRAIT_GENERATOR(is_table)
SQLPP_VALUE_TRAIT_GENERATOR(is_raw_table)
SQLPP_VALUE_TRAIT_GENERATOR(is_join)
SQLPP_VALUE_TRAIT_GENERATOR(is_pseudo_table)
SQLPP_VALUE_TRAIT_GENERATOR(is_column)

6
tests/InterpretTest.cpp
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@ -183,6 +183,12 @@ int main()
printer.reset();
std::cerr << serialize(select(all_of(t)).from(t).where(t.alpha.in(select(f.epsilon).from(f).where(true))), printer).str() << std::endl;
auto schema = db.attach("lorem");
auto s = schema_qualified_table(schema, t).as(sqlpp::alias::x);
printer.reset();
std::cerr << serialize(select(all_of(s)).from(s).where(true), printer).str() << std::endl;
return 0;

7
tests/MockDb.h
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@ -28,6 +28,7 @@
#include <sstream>
#include <iostream>
#include <sqlpp11/schema.h>
#include <sqlpp11/serializer_context.h>
#include <sqlpp11/connection.h>
@ -245,6 +246,12 @@ struct MockDbT: public sqlpp::connection
return {};
}
auto attach(std::string name)
-> ::sqlpp::schema_t
{
return {name};
}
};
using MockDb = MockDbT<false>;