2018-03-13 23:22:17 +01:00
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/*
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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 "modelconnector.h"
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#include "model.h"
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2018-03-23 20:26:57 +01:00
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#include "flatconnector.h"
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#include "dbconnector.h"
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2018-03-13 23:22:17 +01:00
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namespace morm
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{
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ModelConnector::ModelConnector()
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{
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2018-04-17 00:46:25 +02:00
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model_connector_mode = MORM_MODEL_CONNECTOR_MODE_NONE;
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2018-03-23 20:26:57 +01:00
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flat_connector = nullptr;
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db_connector = nullptr;
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2018-04-17 00:46:25 +02:00
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//expression_callback = nullptr;
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//db_connector_callback = nullptr;
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2018-03-13 23:22:17 +01:00
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2018-03-23 20:26:57 +01:00
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out_stream = nullptr;
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2018-03-13 23:22:17 +01:00
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out_stream_allocated = false;
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}
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ModelConnector::~ModelConnector()
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{
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deallocate_stream();
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}
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2018-03-30 21:34:45 +02:00
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void ModelConnector::set_db_expression_output_type(int output_type)
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{
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if( db_connector )
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{
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DbExpression * db_expression = db_connector->get_expression();
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if( db_expression )
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{
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db_expression->set_output_type(output_type);
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}
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}
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}
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2018-04-19 17:21:51 +02:00
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int ModelConnector::get_connector_mode()
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{
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return model_connector_mode;
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}
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2018-03-13 23:22:17 +01:00
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void ModelConnector::deallocate_stream()
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{
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if( out_stream_allocated )
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{
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delete out_stream;
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out_stream = nullptr;
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out_stream_allocated = false;
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}
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}
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void ModelConnector::allocate_default_stream()
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{
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deallocate_stream();
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out_stream = new PT::TextStream();
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out_stream_allocated = true;
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}
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void ModelConnector::allocate_default_stream_if_needed()
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{
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if( !out_stream )
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{
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2018-03-23 20:26:57 +01:00
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allocate_default_stream();
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2018-03-13 23:22:17 +01:00
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}
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}
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void ModelConnector::set_stream(PT::TextStream & stream)
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{
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deallocate_stream();
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this->out_stream = &stream;
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}
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PT::TextStream * ModelConnector::get_stream()
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{
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2018-03-30 21:34:45 +02:00
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allocate_default_stream_if_needed();
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2018-03-13 23:22:17 +01:00
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return out_stream;
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}
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2018-03-23 20:26:57 +01:00
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void ModelConnector::set_flat_connector(FlatConnector & flat_connector)
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2018-03-13 23:22:17 +01:00
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{
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2018-03-23 20:26:57 +01:00
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this->flat_connector = &flat_connector;
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2018-03-13 23:22:17 +01:00
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}
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2018-03-23 20:26:57 +01:00
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void ModelConnector::set_db_connector(DbConnector & db_connector)
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2018-03-13 23:22:17 +01:00
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{
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2018-03-23 20:26:57 +01:00
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this->db_connector = &db_connector;
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2018-03-13 23:22:17 +01:00
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}
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2018-03-30 21:34:45 +02:00
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DbConnector * ModelConnector::get_db_connector()
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{
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return db_connector;
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}
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2018-04-22 03:26:46 +02:00
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bool ModelConnector::was_db_error()
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{
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if( db_connector )
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{
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return db_connector->was_error_in_last_query();
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}
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return false;
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}
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std::wstring ModelConnector::get_db_error()
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{
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if( db_connector )
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{
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return db_connector->get_last_query_error_msg();
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}
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return std::wstring();
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}
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2018-03-23 20:26:57 +01:00
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void ModelConnector::to_text(PT::TextStream & stream, Model & model)
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2018-03-13 23:22:17 +01:00
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{
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2018-03-23 20:26:57 +01:00
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if( flat_connector )
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{
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2018-04-22 23:04:50 +02:00
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model_connector_mode = MORM_MODEL_CONNECTOR_MODE_GENERATING_FLAT_STRING;
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2018-04-17 00:46:25 +02:00
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//expression_callback = flat_connector->get_expression();
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2018-03-13 23:22:17 +01:00
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2018-04-17 00:46:25 +02:00
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//if( expression_callback )
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//{
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2018-03-23 20:26:57 +01:00
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flat_connector->to_text(stream, model);
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2018-04-17 00:46:25 +02:00
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//}
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2018-03-13 23:22:17 +01:00
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2018-04-17 00:46:25 +02:00
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//expression_callback = nullptr;
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model_connector_mode = MORM_MODEL_CONNECTOR_MODE_NONE;
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2018-03-30 21:34:45 +02:00
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}
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}
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void ModelConnector::generate_select_columns(PT::TextStream & stream, Model & model)
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{
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if( db_connector )
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{
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2018-04-22 23:04:50 +02:00
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model_connector_mode = MORM_MODEL_CONNECTOR_MODE_GENERATING_DB_SQL;
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2018-04-17 00:46:25 +02:00
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//expression_callback = db_connector->get_expression();
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2018-03-30 21:34:45 +02:00
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2018-04-17 00:46:25 +02:00
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//if( expression_callback )
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//{
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2018-03-30 21:34:45 +02:00
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db_connector->generate_select_columns(stream, model);
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2018-04-17 00:46:25 +02:00
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//}
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2018-03-30 21:34:45 +02:00
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2018-04-17 00:46:25 +02:00
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//expression_callback = nullptr;
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model_connector_mode = MORM_MODEL_CONNECTOR_MODE_NONE;
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2018-03-23 20:26:57 +01:00
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}
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2018-03-13 23:22:17 +01:00
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}
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2018-03-23 20:26:57 +01:00
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void ModelConnector::generate_insert_query(PT::TextStream & stream, Model & model)
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2018-03-13 23:22:17 +01:00
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{
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2018-03-23 20:26:57 +01:00
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if( db_connector )
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{
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2018-04-22 23:04:50 +02:00
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model_connector_mode = MORM_MODEL_CONNECTOR_MODE_GENERATING_DB_SQL;
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2018-04-17 00:46:25 +02:00
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//expression_callback = db_connector->get_expression();
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2018-03-13 23:22:17 +01:00
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2018-04-17 00:46:25 +02:00
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//if( expression_callback )
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//{
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2018-03-23 20:26:57 +01:00
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db_connector->generate_insert_query(stream, model);
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2018-04-17 00:46:25 +02:00
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//}
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2018-03-13 23:22:17 +01:00
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2018-04-17 00:46:25 +02:00
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//expression_callback = nullptr;
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model_connector_mode = MORM_MODEL_CONNECTOR_MODE_NONE;
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2018-03-23 20:26:57 +01:00
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}
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2018-03-13 23:22:17 +01:00
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}
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2018-03-23 20:26:57 +01:00
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void ModelConnector::generate_update_query(PT::TextStream & stream, Model & model)
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2018-03-13 23:22:17 +01:00
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{
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2018-03-23 20:26:57 +01:00
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if( db_connector )
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{
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2018-04-22 23:04:50 +02:00
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model_connector_mode = MORM_MODEL_CONNECTOR_MODE_GENERATING_DB_SQL;
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2018-04-17 00:46:25 +02:00
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//expression_callback = db_connector->get_expression();
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2018-03-13 23:22:17 +01:00
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2018-04-17 00:46:25 +02:00
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//if( expression_callback )
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//{
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2018-03-23 20:26:57 +01:00
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db_connector->generate_update_query(stream, model);
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2018-04-17 00:46:25 +02:00
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//}
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2018-03-13 23:22:17 +01:00
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2018-04-17 00:46:25 +02:00
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//expression_callback = nullptr;
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model_connector_mode = MORM_MODEL_CONNECTOR_MODE_NONE;
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2018-03-23 20:26:57 +01:00
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}
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}
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2018-03-13 23:22:17 +01:00
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2018-04-22 03:26:46 +02:00
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void ModelConnector::generate_remove_query(PT::TextStream & stream, Model & model)
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2018-03-13 23:22:17 +01:00
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{
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2018-04-22 03:26:46 +02:00
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if( db_connector )
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{
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2018-04-22 23:04:50 +02:00
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model_connector_mode = MORM_MODEL_CONNECTOR_MODE_GENERATING_DB_SQL;
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2018-04-22 03:26:46 +02:00
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db_connector->generate_remove_query(stream, model);
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model_connector_mode = MORM_MODEL_CONNECTOR_MODE_NONE;
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}
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}
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bool ModelConnector::insert(Model & model)
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{
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bool result = false;
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2018-03-13 23:22:17 +01:00
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allocate_default_stream_if_needed();
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2018-03-23 20:26:57 +01:00
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if( db_connector && out_stream )
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{
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2018-04-22 23:04:50 +02:00
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model_connector_mode = MORM_MODEL_CONNECTOR_MODE_GENERATING_DB_SQL;
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2018-04-17 00:46:25 +02:00
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//db_connector_callback = db_connector;
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model.before_insert();
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2018-03-23 20:26:57 +01:00
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out_stream->clear();
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2018-04-22 03:26:46 +02:00
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result = db_connector->insert(*out_stream, model);
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if( result )
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model.after_insert();
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else
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model.after_insert_failure();
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2018-04-17 00:46:25 +02:00
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//db_connector_callback = nullptr;
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model_connector_mode = MORM_MODEL_CONNECTOR_MODE_NONE;
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2018-03-23 20:26:57 +01:00
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}
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2018-04-22 03:26:46 +02:00
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return result;
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2018-03-13 23:22:17 +01:00
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}
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2018-04-22 03:26:46 +02:00
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bool ModelConnector::update(Model & model)
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2018-03-13 23:22:17 +01:00
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{
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2018-04-22 03:26:46 +02:00
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bool result = false;
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2018-03-13 23:22:17 +01:00
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allocate_default_stream_if_needed();
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2018-03-23 20:26:57 +01:00
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if( db_connector && out_stream )
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{
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2018-04-22 23:04:50 +02:00
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model_connector_mode = MORM_MODEL_CONNECTOR_MODE_GENERATING_DB_SQL;
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2018-04-17 00:46:25 +02:00
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//db_connector_callback = db_connector;
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model.before_update();
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2018-03-23 20:26:57 +01:00
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out_stream->clear();
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2018-04-22 03:26:46 +02:00
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result = db_connector->update(*out_stream, model);
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if( result )
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model.after_update();
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else
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model.after_update_failure();
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2018-04-17 00:46:25 +02:00
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//db_connector_callback = nullptr;
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model_connector_mode = MORM_MODEL_CONNECTOR_MODE_NONE;
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2018-03-23 20:26:57 +01:00
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}
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2018-04-22 03:26:46 +02:00
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return result;
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}
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bool ModelConnector::remove(Model & model)
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{
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bool result = false;
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allocate_default_stream_if_needed();
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if( db_connector && out_stream )
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{
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2018-04-22 23:04:50 +02:00
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model_connector_mode = MORM_MODEL_CONNECTOR_MODE_GENERATING_DB_SQL;
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2018-04-22 03:26:46 +02:00
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//db_connector_callback = db_connector;
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model.before_remove();
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out_stream->clear();
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result = db_connector->remove(*out_stream, model);
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if( result )
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model.after_remove();
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else
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model.after_remove_failure();
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//db_connector_callback = nullptr;
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model_connector_mode = MORM_MODEL_CONNECTOR_MODE_NONE;
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}
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return result;
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2018-03-13 23:22:17 +01:00
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}
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2018-04-17 00:46:25 +02:00
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void ModelConnector::map_values_from_query(Model & model)
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{
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2018-04-22 03:26:46 +02:00
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// CHECK ME
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// may we should set model.model_connector() to this?
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// the same in other methods which get a model parameter
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2018-04-17 00:46:25 +02:00
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if( db_connector )
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{
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2018-04-22 23:04:50 +02:00
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model_connector_mode = MORM_MODEL_CONNECTOR_MODE_READING_VALUE_FROM_DB_RESULTSET;
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2018-04-17 00:46:25 +02:00
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//db_connector_callback = db_connector;
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model.map_fields();
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//db_connector_callback = nullptr;
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model_connector_mode = MORM_MODEL_CONNECTOR_MODE_NONE;
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}
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}
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void ModelConnector::clear_values(Model & model)
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{
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if( db_connector )
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{
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model_connector_mode = MORM_MODEL_CONNECTOR_MODE_CLEARING_VALUE;
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model.map_fields();
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model_connector_mode = MORM_MODEL_CONNECTOR_MODE_NONE;
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}
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}
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2018-04-22 23:04:50 +02:00
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bool ModelConnector::is_empty_field(const wchar_t * value)
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{
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return (!value || *value == '\0');
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}
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2018-04-17 00:46:25 +02:00
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2018-03-13 23:22:17 +01:00
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}
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2018-03-23 20:26:57 +01:00
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