e7c3d04309
format all files Revert "format all files" This reverts commit 95d5812e49e7f916b68e786596f5a8eb5bcac414. Revert "format some files" This reverts commit ed3c8762d4d828b2b28e7b18809fc33f4f8ccaf5. format all files fix formatting in dir include fix formatting of debug macro
112 lines
3.2 KiB
C++
112 lines
3.2 KiB
C++
/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2021 Artem Pavlenko
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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#ifndef MAPNIK_SQLITE_RESULTSET_HPP
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#define MAPNIK_SQLITE_RESULTSET_HPP
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// mapnik
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#include <mapnik/debug.hpp>
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#include <mapnik/datasource.hpp>
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#include <mapnik/params.hpp>
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// stl
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#include <string.h>
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// sqlite
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extern "C" {
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#include <sqlite3.h>
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}
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//==============================================================================
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class sqlite_resultset
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{
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public:
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sqlite_resultset(sqlite3_stmt* stmt)
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: stmt_(stmt)
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{}
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~sqlite_resultset()
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{
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if (stmt_)
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{
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sqlite3_finalize(stmt_);
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}
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}
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bool is_valid() { return stmt_ != 0; }
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bool step_next()
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{
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const int status = sqlite3_step(stmt_);
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if (status != SQLITE_ROW && status != SQLITE_DONE)
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{
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std::ostringstream s;
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s << "SQLite Plugin: retrieving next row failed";
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std::string msg(sqlite3_errmsg(sqlite3_db_handle(stmt_)));
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if (msg != "unknown error")
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{
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s << ": " << msg;
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}
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throw mapnik::datasource_exception(s.str());
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}
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return status == SQLITE_ROW;
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}
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int column_count() { return sqlite3_column_count(stmt_); }
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int column_type(int col) { return sqlite3_column_type(stmt_, col); }
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const char* column_name(int col) { return sqlite3_column_name(stmt_, col); }
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bool column_isnull(int col) { return sqlite3_column_type(stmt_, col) == SQLITE_NULL; }
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int column_integer(int col) { return sqlite3_column_int(stmt_, col); }
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sqlite_int64 column_integer64(int col) { return sqlite3_column_int64(stmt_, col); }
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double column_double(int col) { return sqlite3_column_double(stmt_, col); }
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const char* column_text(int col, int& len)
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{
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len = sqlite3_column_bytes(stmt_, col);
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return (const char*)sqlite3_column_text(stmt_, col);
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}
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const char* column_text(int col) { return (const char*)sqlite3_column_text(stmt_, col); }
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const char* column_blob(int col, int& bytes)
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{
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bytes = sqlite3_column_bytes(stmt_, col);
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return (const char*)sqlite3_column_blob(stmt_, col);
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}
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sqlite3_stmt* get_statement() { return stmt_; }
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private:
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sqlite3_stmt* stmt_;
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};
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#endif // MAPNIK_SQLITE_RESULTSET_HPP
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