663 lines
20 KiB
C++
663 lines
20 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) 2018-2019, 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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#ifndef headerfile_morm_baseexpression
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#define headerfile_morm_baseexpression
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#include <list>
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#include <set>
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#include "textstream/textstream.h"
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#include "date/date.h"
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#include "morm_types.h"
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#include "modelenv.h"
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namespace morm
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{
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class Model;
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class ModelConnector;
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class BaseExpression
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{
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public:
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BaseExpression();
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virtual ~BaseExpression();
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virtual void set_work_mode(int work_mode);
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virtual int get_work_mode();
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virtual void clear();
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virtual void generate_from_model(PT::TextStream & stream, Model & model);
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virtual PT::TextStream * get_current_stream();
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// rename me
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virtual void allow_to_use_prefix(bool use_prefix);
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virtual bool get_allow_to_use_prefix();
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template<typename FieldValue>
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void field(const wchar_t * field_name, const FieldValue & field_value, bool insertable, bool updatable, bool is_primary_key, ModelEnv * model_env)
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{
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if( out_stream && can_field_be_generated(insertable, updatable, is_primary_key) )
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{
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field_before();
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if( work_mode == MORM_WORK_MODE_MODEL_FIELDS )
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{
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put_field_name(field_name, model_env);
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}
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else
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if( work_mode == MORM_WORK_MODE_MODEL_SAVE_FIELDS )
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{
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save_foreign_key(field_name, model_env);
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}
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else
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if( work_mode == MORM_WORK_MODE_MODEL_VALUES )
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{
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put_field_value(field_value);
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}
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else
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if( work_mode == MORM_WORK_MODE_MODEL_FIELDS_VALUES )
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{
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if( model_env && model_env->set_field_name_helper )
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{
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if( (size_t)model_env->field_index < model_env->set_field_name_helper->size() )
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{
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put_field_name((*model_env->set_field_name_helper)[model_env->field_index], model_env);
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put_name_value_separator();
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put_field_value(field_value);
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}
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model_env->field_index += 1;
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}
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else
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{
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put_field_name(field_name, model_env);
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put_name_value_separator();
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put_field_value(field_value);
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}
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}
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field_after();
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}
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}
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template<typename FieldValue>
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void field_in(PT::TextStream & stream, const wchar_t * field_name, const std::set<FieldValue> & container, ModelEnv * model_env)
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{
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field_in_generic<FieldValue, std::set<FieldValue>>(stream, field_name, container, model_env);
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}
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template<typename FieldValue>
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void field_in(PT::TextStream & stream, const wchar_t * field_name, const std::list<FieldValue> & container, ModelEnv * model_env)
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{
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field_in_generic<FieldValue, std::list<FieldValue>>(stream, field_name, container, model_env);
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}
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template<typename FieldValue>
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void field_in(PT::TextStream & stream, const wchar_t * field_name, const std::vector<FieldValue> & container, ModelEnv * model_env)
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{
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field_in_generic<FieldValue, std::vector<FieldValue>>(stream, field_name, container, model_env);
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}
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template<typename ModelContainer>
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void field_list(const wchar_t * field_name, ModelContainer & field_value, bool insertable, bool updatable, bool is_primary_key,
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ModelConnector * model_connector, ModelEnv * model_env)
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{
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if( out_stream && can_field_be_generated(insertable, updatable, is_primary_key) )
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{
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field_before();
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// if( work_mode == MORM_WORK_MODE_MODEL_FIELDS )
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// {
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// put_field_name(field_name);
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// }
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// else
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if( work_mode == MORM_WORK_MODE_MODEL_FIELDS_VALUES )
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{
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put_field_name(field_name, model_env);
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put_name_value_separator();
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put_field_value_list(field_value, model_connector, model_env);
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}
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field_after();
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}
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}
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template<typename ModelClass>
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void field_model(const wchar_t * field_name, ModelClass & field_model, bool insertable, bool updatable, bool is_primary_key, ModelEnv * model_env)
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{
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if( out_stream && can_field_be_generated(insertable, updatable, is_primary_key) )
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{
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field_before();
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if( work_mode == MORM_WORK_MODE_MODEL_FIELDS )
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{
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put_field_name(field_name, model_env);
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}
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else
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if( work_mode == MORM_WORK_MODE_MODEL_VALUES )
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{
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generate_from_model(field_model); // is it ok as a value?
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}
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else
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if( work_mode == MORM_WORK_MODE_MODEL_FIELDS_VALUES )
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{
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put_field_name(field_name, model_env);
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put_name_value_separator();
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generate_from_model(field_model);
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}
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field_after();
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}
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}
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template<typename FieldValue>
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void field_to_stream(PT::TextStream & stream, const wchar_t * field_name, const FieldValue & field_value, bool insertable, bool updatable, bool is_primary_key,
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ModelEnv * model_env)
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{
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this->out_stream = &stream;
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field(field_name, field_value, insertable, updatable, is_primary_key, model_env);
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this->out_stream = nullptr;
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}
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/*
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* IMPLEMENT ME
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* esc for: signed char, wchar_t, char16_t, char32_t
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*
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*/
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virtual void esc(char val, PT::TextStream & stream);
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virtual void esc(unsigned char val, PT::TextStream & stream);
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virtual void esc(const std::wstring & val, PT::TextStream & stream);
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virtual void esc(const wchar_t * val, PT::TextStream & stream);
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virtual void esc(const std::string & val, PT::TextStream & stream);
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virtual void esc(const char * val, PT::TextStream & stream);
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virtual void esc(bool val, PT::TextStream & stream);
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virtual void esc(short val, PT::TextStream & stream);
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virtual void esc(unsigned short val, PT::TextStream & stream);
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virtual void esc(int val, PT::TextStream & stream);
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virtual void esc(unsigned int val, PT::TextStream & stream);
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virtual void esc(long val, PT::TextStream & stream);
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virtual void esc(unsigned long val, PT::TextStream & stream);
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virtual void esc(long long val, PT::TextStream & stream);
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virtual void esc(unsigned long long val, PT::TextStream & stream);
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virtual void esc(float val, PT::TextStream & stream);
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virtual void esc(double val, PT::TextStream & stream);
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virtual void esc(long double val, PT::TextStream & stream);
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//virtual void esc(void* val, PT::TextStream & stream);
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virtual void esc(const PT::Date & date, PT::TextStream & stream);
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virtual void esc(const PT::TextStream & val,PT::TextStream & stream);
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virtual bool is_long_field_name(const wchar_t * field_name);
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virtual bool is_long_field_name(const PT::TextStream & table_name);
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virtual bool is_long_table_name(const wchar_t * field_name);
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virtual bool is_long_table_name(const PT::TextStream & table_name);
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protected:
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int work_mode; /* what to do: generating fields list, values list or fields-values list */
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bool is_first_field;
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PT::TextStream * out_stream;
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bool use_prefix;
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virtual void generate_from_model(Model & model);
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virtual void before_generate_from_model();
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virtual void after_generate_from_model();
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virtual bool can_field_be_generated(bool insertable, bool updatable, bool is_primary_key);
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virtual void field_before();
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virtual void field_after();
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//void field(const wchar_t * field_name, Model & field, bool insertable = true, bool updatable = true);
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virtual bool need_to_add_field_prefix(const wchar_t * field_name);
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virtual void put_field_name(const wchar_t * field_name, ModelEnv * model_env);
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virtual void save_foreign_key(const wchar_t * field_name, ModelEnv * model_env);
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virtual void dump_additional_info(Model & model);
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template<typename FieldValue>
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void put_field_value(const FieldValue & field_value)
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{
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if( out_stream )
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{
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before_field_value(field_value);
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esc(field_value, *out_stream);
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after_field_value(field_value);
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}
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}
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virtual void before_field_value_list()
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{
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}
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virtual void after_field_value_list()
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{
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}
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virtual void field_value_list_separator()
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{
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(*out_stream) << ",";
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}
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virtual void put_statement_in_starts()
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{
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(*out_stream) << "(";
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}
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virtual void put_statement_in_ends()
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{
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(*out_stream) << ") ";
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}
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template<typename ModelContainer>
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void put_field_value_list_non_model(ModelContainer & field_value, ModelConnector * model_connector)
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{
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if( model_connector && out_stream )
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{
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bool is_first = true;
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before_field_value_list();
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for(const auto & m : field_value)
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{
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if( !is_first )
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{
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field_value_list_separator();
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}
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//ModelEnv model_env_local(*model_env);
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//m.model_env = &model_env_local;
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//before_field_value(field_value);
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//m.set_connector(model_connector);
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put_field_value(m);
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//generate_from_model(m);
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//m.model_env = nullptr;
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//after_field_value(field_value);
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is_first = false;
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}
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after_field_value_list();
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}
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}
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template<typename ModelContainer>
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void put_field_value_list(ModelContainer & field_value, ModelConnector * model_connector, ModelEnv * model_env)
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{
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if( model_connector && model_env && out_stream )
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{
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bool is_first = true;
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before_field_value_list();
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for(auto & m : field_value)
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{
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if( !is_first )
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{
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field_value_list_separator();
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}
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ModelEnv model_env_local(*model_env);
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m.model_env = &model_env_local;
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//before_field_value(field_value);
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m.set_connector(model_connector);
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generate_from_model(m);
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m.model_env = nullptr;
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//after_field_value(field_value);
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is_first = false;
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}
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after_field_value_list();
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}
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}
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void put_field_value_list(std::vector<char> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::vector<unsigned char> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::vector<std::wstring> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::vector<std::string> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::vector<bool> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::vector<short> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::vector<unsigned short> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::vector<int> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::vector<unsigned int> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::vector<long> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::vector<unsigned long> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::vector<long long> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::vector<unsigned long long> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::vector<float> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::vector<double> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::vector<long double> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::vector<PT::Date> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::list<char> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::list<unsigned char> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::list<std::wstring> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::list<std::string> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::list<bool> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::list<short> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::list<unsigned short> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::list<int> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::list<unsigned int> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::list<long> & field_value, ModelConnector * model_connector, ModelEnv *)
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{
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put_field_value_list_non_model(field_value, model_connector);
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}
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void put_field_value_list(std::list<unsigned long> & field_value, ModelConnector * model_connector, ModelEnv *)
|
|
{
|
|
put_field_value_list_non_model(field_value, model_connector);
|
|
}
|
|
|
|
void put_field_value_list(std::list<long long> & field_value, ModelConnector * model_connector, ModelEnv *)
|
|
{
|
|
put_field_value_list_non_model(field_value, model_connector);
|
|
}
|
|
|
|
void put_field_value_list(std::list<unsigned long long> & field_value, ModelConnector * model_connector, ModelEnv *)
|
|
{
|
|
put_field_value_list_non_model(field_value, model_connector);
|
|
}
|
|
|
|
void put_field_value_list(std::list<float> & field_value, ModelConnector * model_connector, ModelEnv *)
|
|
{
|
|
put_field_value_list_non_model(field_value, model_connector);
|
|
}
|
|
|
|
void put_field_value_list(std::list<double> & field_value, ModelConnector * model_connector, ModelEnv *)
|
|
{
|
|
put_field_value_list_non_model(field_value, model_connector);
|
|
}
|
|
|
|
void put_field_value_list(std::list<long double> & field_value, ModelConnector * model_connector, ModelEnv *)
|
|
{
|
|
put_field_value_list_non_model(field_value, model_connector);
|
|
}
|
|
|
|
void put_field_value_list(std::list<PT::Date> & field_value, ModelConnector * model_connector, ModelEnv *)
|
|
{
|
|
put_field_value_list_non_model(field_value, model_connector);
|
|
}
|
|
|
|
|
|
|
|
// used in 'in()' statements, may should be renamed?
|
|
template<typename FieldValue, typename Container>
|
|
void field_in_generic(PT::TextStream & stream, const wchar_t * field_name, const Container & container, ModelEnv * model_env)
|
|
{
|
|
// IMPROVE ME
|
|
// what about if container is empty?
|
|
// only 'in()' statement would be generated
|
|
this->out_stream = &stream;
|
|
|
|
field_before();
|
|
put_field_name(field_name, model_env);
|
|
put_name_value_separator();
|
|
|
|
bool is_first = true;
|
|
put_statement_in_starts();
|
|
|
|
for(const FieldValue & v : container)
|
|
{
|
|
if( !is_first )
|
|
{
|
|
field_value_list_separator();
|
|
}
|
|
|
|
put_field_value(v);
|
|
is_first = false;
|
|
}
|
|
|
|
put_statement_in_ends();
|
|
field_after();
|
|
this->out_stream = nullptr;
|
|
}
|
|
|
|
|
|
virtual void before_field_name();
|
|
virtual void after_field_name();
|
|
|
|
virtual void before_field_value(const std::wstring &);
|
|
virtual void after_field_value(const std::wstring &);
|
|
|
|
virtual void before_field_value(const std::string &);
|
|
virtual void after_field_value(const std::string &);
|
|
|
|
virtual void before_field_value(const wchar_t *);
|
|
virtual void after_field_value(const wchar_t *);
|
|
|
|
virtual void before_field_value(const char *);
|
|
virtual void after_field_value(const char *);
|
|
|
|
virtual void before_field_value(const PT::Date &);
|
|
virtual void after_field_value(const PT::Date &);
|
|
|
|
|
|
template<typename FieldValue>
|
|
void before_field_value(const FieldValue &)
|
|
{
|
|
}
|
|
|
|
template<typename FieldValue>
|
|
void after_field_value(const FieldValue &)
|
|
{
|
|
}
|
|
|
|
virtual void put_name_value_separator();
|
|
|
|
|
|
/*
|
|
* IMPLEMENT ME
|
|
* put_type for: signed char, wchar_t, char16_t, char32_t
|
|
*
|
|
*/
|
|
virtual void put_type(char val, PT::TextStream & stream);
|
|
virtual void put_type(unsigned char val, PT::TextStream & stream);
|
|
|
|
virtual void put_type(const std::wstring & val, PT::TextStream & stream);
|
|
virtual void put_type(const wchar_t * val, PT::TextStream & stream);
|
|
|
|
virtual void put_type(const std::string & val, PT::TextStream & stream);
|
|
virtual void put_type(const char * val, PT::TextStream & stream);
|
|
|
|
virtual void put_type(bool val, PT::TextStream & stream);
|
|
virtual void put_type(short val, PT::TextStream & stream);
|
|
virtual void put_type(unsigned short val, PT::TextStream & stream);
|
|
virtual void put_type(int val, PT::TextStream & stream);
|
|
virtual void put_type(unsigned int val, PT::TextStream & stream);
|
|
virtual void put_type(long val, PT::TextStream & stream);
|
|
virtual void put_type(unsigned long val, PT::TextStream & stream);
|
|
virtual void put_type(long long val, PT::TextStream & stream);
|
|
virtual void put_type(unsigned long long val, PT::TextStream & stream);
|
|
virtual void put_type(float val, PT::TextStream & stream);
|
|
virtual void put_type(double val, PT::TextStream & stream);
|
|
virtual void put_type(long double val, PT::TextStream & stream);
|
|
//virtual void put_type(void* val, PT::TextStream & stream);
|
|
|
|
virtual void put_type(const PT::Date & date, PT::TextStream & stream);
|
|
virtual void put_type(const Model & model, PT::TextStream & stream);
|
|
|
|
template<typename ListType>
|
|
void put_type(const std::list<ListType> & model, PT::TextStream & stream)
|
|
{
|
|
stream << "table"; // may just use std::list?
|
|
}
|
|
|
|
template<typename ListType>
|
|
void put_type(const std::vector<ListType> & model, PT::TextStream & stream)
|
|
{
|
|
stream << "table"; // may just just std::vector?
|
|
}
|
|
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|