148 lines
3.2 KiB
C++
148 lines
3.2 KiB
C++
/*
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* This file is a part of morm
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* and is distributed under the 2-Clause BSD licence.
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* Author: Tomasz Sowa <t.sowa@ttmath.org>
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*/
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/*
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* Copyright (c) 2018, Tomasz Sowa
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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
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. 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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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation 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"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "dbexpression.h"
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namespace morm
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{
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DbExpression::DbExpression()
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{
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output_type = 0;
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}
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DbExpression::~DbExpression()
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{
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}
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void DbExpression::set_output_type(int output_type)
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{
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this->output_type = output_type;
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}
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bool DbExpression::can_field_be_generated(bool insertable, bool updatable, bool is_primary_key)
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{
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if( output_type == MORM_OUTPUT_TYPE_DB_INSERT )
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{
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return insertable;
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}
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else
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if( output_type == MORM_OUTPUT_TYPE_DB_UPDATE )
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{
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return updatable;
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}
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else
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if( output_type == MORM_OUTPUT_TYPE_DB_PRIMARY_KEY )
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{
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return is_primary_key;
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}
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else
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{
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return true;
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}
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}
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void DbExpression::field_before()
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{
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BaseExpression::field_before();
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if( !is_first_field )
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{
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if( output_type == MORM_OUTPUT_TYPE_DB_INSERT ||
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output_type == MORM_OUTPUT_TYPE_DB_UPDATE )
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{
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(*out_stream) << ",";
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}
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else
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if( output_type == MORM_OUTPUT_TYPE_DB_PRIMARY_KEY )
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{
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(*out_stream) << " AND ";
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}
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}
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}
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void DbExpression::before_field_value_string()
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{
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if( output_type == MORM_OUTPUT_TYPE_DB_INSERT ||
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output_type == MORM_OUTPUT_TYPE_DB_UPDATE ||
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output_type == MORM_OUTPUT_TYPE_DB_PRIMARY_KEY )
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{
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(*out_stream) << "'";
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}
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}
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void DbExpression::after_field_value_string()
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{
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if( output_type == MORM_OUTPUT_TYPE_DB_INSERT ||
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output_type == MORM_OUTPUT_TYPE_DB_UPDATE ||
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output_type == MORM_OUTPUT_TYPE_DB_PRIMARY_KEY )
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{
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(*out_stream) << "'";
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}
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}
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void DbExpression::before_field_value(const std::wstring &)
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{
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before_field_value_string();
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}
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void DbExpression::before_field_value(const std::string &)
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{
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before_field_value_string();
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}
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void DbExpression::after_field_value(const std::wstring &)
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{
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after_field_value_string();
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}
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void DbExpression::after_field_value(const std::string &)
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{
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after_field_value_string();
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}
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}
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