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lms/src/database/SearchFilter.cpp
T

124 lines
3.1 KiB
C++

/*
* Copyright (C) 2015 Emeric Poupon
*
* This file is part of LMS.
*
* LMS is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* LMS is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with LMS. If not, see <http://www.gnu.org/licenses/>.
*/
#include "utils/Logger.hpp"
#include "SearchFilter.hpp"
namespace Database
{
static std::ostream& operator<<(std::ostream& ost, const std::vector< Wt::Dbo::dbo_default_traits::IdType>& ids)
{
const char *sep = "";
for (auto id : ids)
{
ost << sep << std::to_string(id);
sep = ",";
}
return ost;
}
SqlQuery generatePartialQuery(SearchFilter& filter)
{
SqlQuery sqlQuery;
// Process name like parameters
for (auto nameLikeMatches : filter.nameLikeMatch)
{
WhereClause likeWhereClause;
for (auto nameLikeMatch : nameLikeMatches)
{
switch (nameLikeMatch.first)
{
case SearchFilter::Field::Artist:
for (const std::string& name : nameLikeMatch.second)
likeWhereClause.Or( WhereClause("a.name LIKE ?") ).bind("%%" + name + "%%");
break;
case SearchFilter::Field::Release:
for (const std::string& name : nameLikeMatch.second)
likeWhereClause.Or( WhereClause("r.name LIKE ?") ).bind("%%" + name + "%%");
break;
case SearchFilter::Field::Cluster:
for (const std::string& name : nameLikeMatch.second)
likeWhereClause.Or( WhereClause("c.name LIKE ?") ).bind("%%" + name + "%%");
break;
case SearchFilter::Field::Track:
for (const std::string& name : nameLikeMatch.second)
likeWhereClause.Or( WhereClause("t.name LIKE ?") ).bind("%%" + name + "%%");
break;
}
}
sqlQuery.where().And( likeWhereClause );
}
// Process id exact match parameters
// Id list may be long, we do not bind the parameters
// Safe since we already known these are just ints
for (auto idMatch : filter.idMatch)
{
WhereClause idWhereClause;
switch (idMatch.first)
{
case SearchFilter::Field::Artist:
{
std::ostringstream oss;
oss << "a.id IN (" << idMatch.second << ")";
idWhereClause.Or(oss.str());
}
break;
case SearchFilter::Field::Release:
{
std::ostringstream oss;
oss << "r.id IN (" << idMatch.second << ")";
idWhereClause.Or(oss.str());
}
break;
case SearchFilter::Field::Cluster:
{
std::ostringstream oss;
oss << "c.id IN (" << idMatch.second << ")";
idWhereClause.Or(oss.str());
}
break;
case SearchFilter::Field::Track:
{
std::ostringstream oss;
oss << "t.id IN (" << idMatch.second << ")";
idWhereClause.Or(oss.str());
}
break;
}
sqlQuery.where().And( idWhereClause );
}
return sqlQuery;
}
} // namespace Database