953 lines
21 KiB
C++
953 lines
21 KiB
C++
/*
|
|
* This file is a part of morm
|
|
* and is distributed under the 2-Clause BSD licence.
|
|
* Author: Tomasz Sowa <t.sowa@ttmath.org>
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 2018-2022, Tomasz Sowa
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
*/
|
|
|
|
#ifndef headerfile_morm_src_finder
|
|
#define headerfile_morm_src_finder
|
|
|
|
#include <vector>
|
|
#include <list>
|
|
#include <set>
|
|
#include "model.h"
|
|
#include "utf8/utf8.h"
|
|
#include "textstream/textstream.h"
|
|
#include "dbconnector.h"
|
|
#include "modelconnector.h"
|
|
#include "cursor.h"
|
|
#include "select.h"
|
|
|
|
|
|
namespace morm
|
|
{
|
|
|
|
template<typename ModelClass>
|
|
class Finder
|
|
{
|
|
public:
|
|
|
|
|
|
Finder()
|
|
{
|
|
model_connector = nullptr;
|
|
out_stream = nullptr;
|
|
db_expression = nullptr;
|
|
was_query_error = false;
|
|
model_data = nullptr;
|
|
}
|
|
|
|
|
|
Finder(pt::TextStream & out_stream)
|
|
{
|
|
this->out_stream = &out_stream;
|
|
this->model_connector = nullptr;
|
|
db_expression = nullptr;
|
|
was_query_error = false;
|
|
model_data = nullptr;
|
|
}
|
|
|
|
Finder(ModelConnector & model_connector)
|
|
{
|
|
this->model_connector = &model_connector;
|
|
out_stream = nullptr;
|
|
db_expression = nullptr;
|
|
was_query_error = false;
|
|
model_data = nullptr;
|
|
set_out_stream();
|
|
}
|
|
|
|
Finder(ModelConnector * model_connector)
|
|
{
|
|
this->model_connector = model_connector;
|
|
out_stream = nullptr;
|
|
db_expression = nullptr;
|
|
was_query_error = false;
|
|
model_data = nullptr;
|
|
set_out_stream();
|
|
}
|
|
|
|
Finder(pt::TextStream & out_stream, ModelConnector & model_connector)
|
|
{
|
|
this->out_stream = &out_stream;
|
|
this->model_connector = &model_connector;
|
|
db_expression = nullptr;
|
|
was_query_error = false;
|
|
model_data = nullptr;
|
|
}
|
|
|
|
Finder(pt::TextStream & out_stream, ModelConnector * model_connector)
|
|
{
|
|
this->out_stream = &out_stream;
|
|
this->model_connector = model_connector;
|
|
db_expression = nullptr;
|
|
was_query_error = false;
|
|
model_data = nullptr;
|
|
}
|
|
|
|
Finder<ModelClass> & set_connector(ModelConnector * model_connector)
|
|
{
|
|
this->model_connector = model_connector;
|
|
set_out_stream();
|
|
return *this;
|
|
}
|
|
|
|
Finder<ModelClass> & set_connector(ModelConnector & model_connector)
|
|
{
|
|
this->model_connector = &model_connector;
|
|
set_out_stream();
|
|
return *this;
|
|
}
|
|
|
|
Finder<ModelClass> & set_stream(pt::TextStream * out_stream)
|
|
{
|
|
this->out_stream = out_stream;
|
|
return *this;
|
|
}
|
|
|
|
Finder<ModelClass> & set_stream(pt::TextStream & out_stream)
|
|
{
|
|
this->out_stream = out_stream;
|
|
return *this;
|
|
}
|
|
|
|
Finder<ModelClass> & set_model_data(ModelData * model_data)
|
|
{
|
|
this->model_data = model_data;
|
|
return *this;
|
|
}
|
|
|
|
Finder<ModelClass> & set_model_data(ModelData & model_data)
|
|
{
|
|
this->model_data = &model_data;
|
|
return *this;
|
|
}
|
|
|
|
|
|
bool was_error()
|
|
{
|
|
return was_query_error;
|
|
}
|
|
|
|
|
|
std::wstring get_error_msg()
|
|
{
|
|
return last_query_error;
|
|
}
|
|
|
|
|
|
Finder<ModelClass> & select(const Select & select_flags = Select::default_type)
|
|
{
|
|
start_new_select(select_flags);
|
|
|
|
if( !select_flags.is_no_auto_generated_columns() )
|
|
{
|
|
generate_standard_select();
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
/*
|
|
* used if we are not using auto generated selects
|
|
*/
|
|
Finder<ModelClass> & use_table_prefix(bool use_table_prefix_for_fetching)
|
|
{
|
|
this->use_table_prefix_for_fetching = use_table_prefix_for_fetching;
|
|
return *this;
|
|
}
|
|
|
|
|
|
Finder<ModelClass> & where()
|
|
{
|
|
if( out_stream && db_expression )
|
|
{
|
|
(*out_stream) << " WHERE ";
|
|
db_expression->prepare_to_where_clause();
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
Finder<ModelClass> & group_or()
|
|
{
|
|
if( db_expression && out_stream )
|
|
{
|
|
db_expression->group_or(*out_stream);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
Finder<ModelClass> & group_and()
|
|
{
|
|
if( db_expression && out_stream )
|
|
{
|
|
db_expression->group_and(*out_stream);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
Finder<ModelClass> & group_end()
|
|
{
|
|
if( db_expression && out_stream )
|
|
{
|
|
db_expression->group_end(*out_stream);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & eq(const wchar_t * field_name, const FieldValue & field_value)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_EQ);
|
|
db_expression->field_to_stream(*out_stream, field_name, field_value, FT::default_type, &model_env);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & eq(const wchar_t * table_name, const wchar_t * field_name, const FieldValue & field_value)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_EQ);
|
|
field_to_stream(table_name, 1, field_name, field_value);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & eq(const wchar_t * table_name, int table_index, const wchar_t * field_name, const FieldValue & field_value)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_EQ);
|
|
field_to_stream(table_name, table_index, field_name, field_value);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & neq(const wchar_t * field_name, const FieldValue & field_value)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_NOT_EQ);
|
|
db_expression->field_to_stream(*out_stream, field_name, field_value, FT::default_type, &model_env);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & neq(const wchar_t * table_name, const wchar_t * field_name, const FieldValue & field_value)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_NOT_EQ);
|
|
field_to_stream(table_name, 1, field_name, field_value);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & neq(const wchar_t * table_name, int table_index, const wchar_t * field_name, const FieldValue & field_value)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_NOT_EQ);
|
|
field_to_stream(table_name, table_index, field_name, field_value);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & lt(const wchar_t * field_name, const FieldValue & field_value)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_LT);
|
|
db_expression->field_to_stream(*out_stream, field_name, field_value, FT::default_type, &model_env);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & lt(const wchar_t * table_name, const wchar_t * field_name, const FieldValue & field_value)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_LT);
|
|
field_to_stream(table_name, 1, field_name, field_value);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & lt(const wchar_t * table_name, int table_index, const wchar_t * field_name, const FieldValue & field_value)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_LT);
|
|
field_to_stream(table_name, table_index, field_name, field_value);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & gt(const wchar_t * field_name, const FieldValue & field_value)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_GT);
|
|
db_expression->field_to_stream(*out_stream, field_name, field_value, FT::default_type, &model_env);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & gt(const wchar_t * table_name, const wchar_t * field_name, const FieldValue & field_value)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_GT);
|
|
field_to_stream(table_name, 1, field_name, field_value);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & gt(const wchar_t * table_name, int table_index, const wchar_t * field_name, const FieldValue & field_value)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_GT);
|
|
field_to_stream(table_name, table_index, field_name, field_value);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & le(const wchar_t * field_name, const FieldValue & field_value)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_LE);
|
|
db_expression->field_to_stream(*out_stream, field_name, field_value, FT::default_type, &model_env);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & le(const wchar_t * table_name, const wchar_t * field_name, const FieldValue & field_value)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_LE);
|
|
field_to_stream(table_name, 1, field_name, field_value);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & le(const wchar_t * table_name, int table_index, const wchar_t * field_name, const FieldValue & field_value)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_LE);
|
|
field_to_stream(table_name, table_index, field_name, field_value);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & ge(const wchar_t * field_name, const FieldValue & field_value)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_GE);
|
|
db_expression->field_to_stream(*out_stream, field_name, field_value, FT::default_type, &model_env);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & ge(const wchar_t * table_name, const wchar_t * field_name, const FieldValue & field_value)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_GE);
|
|
field_to_stream(table_name, 1, field_name, field_value);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & ge(const wchar_t * table_name, int table_index, const wchar_t * field_name, const FieldValue & field_value)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_GE);
|
|
field_to_stream(table_name, table_index, field_name, field_value);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & in(const wchar_t * field_name, const std::set<FieldValue> & container)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_IN);
|
|
db_expression->field_in(*out_stream, field_name, container, &model_env);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & in(const wchar_t * table_name, const wchar_t * field_name, const std::set<FieldValue> & container)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_IN);
|
|
field_in(table_name, 1, field_name, container);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & in(const wchar_t * table_name, int table_index, const wchar_t * field_name, const std::set<FieldValue> & container)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_IN);
|
|
field_in(table_name, table_index, field_name, container);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & in(const wchar_t * field_name, const std::list<FieldValue> & container)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_IN);
|
|
db_expression->field_in(*out_stream, field_name, container, &model_env);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & in(const wchar_t * table_name, const wchar_t * field_name, const std::list<FieldValue> & container)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_IN);
|
|
field_in(table_name, 1, field_name, container);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & in(const wchar_t * table_name, int table_index, const wchar_t * field_name, const std::list<FieldValue> & container)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_IN);
|
|
field_in(table_name, table_index, field_name, container);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & in(const wchar_t * field_name, const std::vector<FieldValue> & container)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_IN);
|
|
db_expression->field_in(*out_stream, field_name, container, &model_env);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & in(const wchar_t * table_name, const wchar_t * field_name, const std::vector<FieldValue> & container)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_IN);
|
|
field_in(table_name, 1, field_name, container);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
template<typename FieldValue>
|
|
Finder<ModelClass> & in(const wchar_t * table_name, int table_index, const wchar_t * field_name, const std::vector<FieldValue> & container)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
db_expression->set_output_type(MORM_OUTPUT_TYPE_WHERE_IN);
|
|
field_in(table_name, table_index, field_name, container);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* page_number start from zero (it's a number of a page, not an offset)
|
|
*/
|
|
Finder<ModelClass> & page(size_t page_number, size_t page_size)
|
|
{
|
|
if( out_stream && db_expression )
|
|
{
|
|
db_expression->page(*out_stream, page_number, page_size);
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
Finder<ModelClass> & raw(const char * sql, bool add_spaces = true)
|
|
{
|
|
if( out_stream )
|
|
{
|
|
if( add_spaces )
|
|
(*out_stream) << ' ';
|
|
|
|
(*out_stream) << sql;
|
|
|
|
if( add_spaces )
|
|
(*out_stream) << ' ';
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
Finder<ModelClass> & raw(const pt::TextStream & sql, bool add_spaces = true)
|
|
{
|
|
if( out_stream )
|
|
{
|
|
if( add_spaces )
|
|
(*out_stream) << ' ';
|
|
|
|
(*out_stream) << sql;
|
|
|
|
if( add_spaces )
|
|
(*out_stream) << ' ';
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
Finder<ModelClass> & raw(long val, bool add_spaces = true)
|
|
{
|
|
if( out_stream )
|
|
{
|
|
if( add_spaces )
|
|
(*out_stream) << ' ';
|
|
|
|
(*out_stream) << val;
|
|
|
|
if( add_spaces )
|
|
(*out_stream) << ' ';
|
|
}
|
|
|
|
return *this;
|
|
}
|
|
|
|
|
|
Cursor<ModelClass> get_cursor()
|
|
{
|
|
Cursor<ModelClass> cursor;
|
|
cursor.set_model_data(model_data);
|
|
cursor.set_has_autogenerated_select(model_env.has_autogenerated_select);
|
|
cursor.use_table_prefix(use_table_prefix_for_fetching);
|
|
cursor.set_select_flags(model_env.select_flags);
|
|
|
|
if( model_env.select_flags.is_with_rows_counter() )
|
|
{
|
|
if( model_env.rows_counter_column_name.empty() )
|
|
{
|
|
generate_rows_counter_column_name(model_env);
|
|
}
|
|
|
|
cursor.set_rows_counter_column_name(model_env.rows_counter_column_name);
|
|
}
|
|
|
|
if( model_connector && out_stream )
|
|
{
|
|
cursor.set_model_connector(model_connector);
|
|
DbConnector * db_connector = model_connector->get_db_connector();
|
|
|
|
if( db_connector )
|
|
{
|
|
QueryResult * query_result = db_connector->create_query_result();
|
|
cursor.set_query_result(query_result);
|
|
query_result->references_count = 1;
|
|
|
|
bool status = db_connector->query_select(*out_stream, *query_result);
|
|
cursor.set_select_status(status);
|
|
}
|
|
}
|
|
|
|
return cursor;
|
|
}
|
|
|
|
|
|
bool get(ModelClass & result)
|
|
{
|
|
Cursor<ModelClass> cursor = get_cursor();
|
|
bool status = cursor.get(result);
|
|
model_env.rows_counter = cursor.get_rows_counter();
|
|
return status;
|
|
}
|
|
|
|
|
|
ModelClass get()
|
|
{
|
|
ModelClass model;
|
|
|
|
get(model);
|
|
return model;
|
|
}
|
|
|
|
|
|
bool get_list(std::list<ModelClass> & result, bool clear_list = true)
|
|
{
|
|
Cursor<ModelClass> cursor = get_cursor();
|
|
bool status = cursor.get_list(result, clear_list);
|
|
model_env.rows_counter = cursor.get_rows_counter();
|
|
return status;
|
|
}
|
|
|
|
|
|
std::list<ModelClass> get_list()
|
|
{
|
|
std::list<ModelClass> result;
|
|
|
|
get_list(result, false);
|
|
return result;
|
|
}
|
|
|
|
|
|
bool get_vector(std::vector<ModelClass> & result, bool clear_vector = true)
|
|
{
|
|
Cursor<ModelClass> cursor = get_cursor();
|
|
bool status = cursor.get_vector(result, clear_vector);
|
|
model_env.rows_counter = cursor.get_rows_counter();
|
|
return status;
|
|
}
|
|
|
|
|
|
std::vector<ModelClass> get_vector()
|
|
{
|
|
std::vector<ModelClass> result;
|
|
|
|
get_vector(result, false);
|
|
return result;
|
|
}
|
|
|
|
|
|
size_t get_rows_counter()
|
|
{
|
|
return model_env.rows_counter;
|
|
}
|
|
|
|
|
|
protected:
|
|
|
|
|
|
|
|
virtual void start_new_select(const Select & select_flags = Select::default_type)
|
|
{
|
|
was_query_error = false;
|
|
last_query_error.clear();
|
|
use_table_prefix_for_fetching = false;
|
|
|
|
if( model_connector )
|
|
{
|
|
if( out_stream )
|
|
{
|
|
set_db_expression();
|
|
out_stream->clear();
|
|
}
|
|
else
|
|
{
|
|
was_query_error = true;
|
|
last_query_error = L"out stream object is required";
|
|
}
|
|
}
|
|
else
|
|
{
|
|
was_query_error = true;
|
|
last_query_error = L"model connector object is required";
|
|
}
|
|
|
|
model.set_connector(model_connector);
|
|
|
|
finder_helper.clear();
|
|
model_env.clear();
|
|
model_env.select_flags = select_flags;
|
|
model_env.has_autogenerated_select = false;
|
|
model_env.model_data = model_data;
|
|
model_env.finder_helper = &finder_helper;
|
|
model_env.model = &model;
|
|
|
|
model.model_env = &model_env;
|
|
model.table();
|
|
model.model_env->add_table_name_to_finder_helper();
|
|
}
|
|
|
|
|
|
virtual void generate_standard_select()
|
|
{
|
|
if( model_connector && out_stream && db_expression && model.model_env )
|
|
{
|
|
model.model_env->has_autogenerated_select = true;
|
|
|
|
(*out_stream) << "SELECT ";
|
|
model.generate_select_columns(*out_stream);
|
|
(*out_stream) << " FROM ";
|
|
|
|
if( !model.model_env->schema_name.empty() )
|
|
{
|
|
db_expression->schema_table_to_stream(*out_stream, model.model_env->schema_name, model.model_env->table_name);
|
|
}
|
|
else
|
|
{
|
|
db_expression->table_to_stream(*out_stream, model.model_env->table_name);
|
|
}
|
|
|
|
(*out_stream) << " AS ";
|
|
db_expression->table_to_stream(*out_stream, model.model_env->table_name);
|
|
|
|
if( !finder_helper.join_tables_str.empty() )
|
|
{
|
|
(*out_stream) << " ";
|
|
(*out_stream) << finder_helper.join_tables_str;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
virtual void set_out_stream()
|
|
{
|
|
if( model_connector )
|
|
{
|
|
this->out_stream = model_connector->get_stream();
|
|
}
|
|
else
|
|
{
|
|
this->out_stream = nullptr;
|
|
}
|
|
}
|
|
|
|
|
|
virtual void generate_rows_counter_column_name(ModelEnv & model_env, pt::TextStream & str)
|
|
{
|
|
if( model_env.has_autogenerated_select )
|
|
{
|
|
/*
|
|
* if the column name is empty put a short string which will not allocate dynamic memory
|
|
* (special optimisation in std::string - a short static buffer)
|
|
*
|
|
* we need a non empty string for field(...) method to work correctly
|
|
* (if the column name was empty then the field(...) would skip the column)
|
|
* (we need the field(...) to correctly advance cursor_helper->current_column)
|
|
*/
|
|
str << L"morm";
|
|
}
|
|
else
|
|
{
|
|
if( model_connector )
|
|
{
|
|
DbConnector * db_connector = model_connector->get_db_connector();
|
|
|
|
if( db_connector )
|
|
{
|
|
DbExpression * db_expression = db_connector->get_expression();
|
|
|
|
if( db_expression )
|
|
{
|
|
db_expression->generate_rows_counter_column_name(model_env, str);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
virtual void generate_rows_counter_column_name(ModelEnv & model_env)
|
|
{
|
|
pt::TextStream str;
|
|
generate_rows_counter_column_name(model_env, str);
|
|
str.to_str(model_env.rows_counter_column_name);
|
|
}
|
|
|
|
|
|
|
|
private:
|
|
|
|
|
|
pt::TextStream * out_stream;
|
|
ModelConnector * model_connector;
|
|
DbExpression * db_expression;
|
|
ModelClass model;
|
|
bool was_query_error;
|
|
std::wstring last_query_error;
|
|
ModelEnv model_env;
|
|
FinderHelper finder_helper;
|
|
ModelData * model_data;
|
|
bool use_table_prefix_for_fetching;
|
|
|
|
|
|
|
|
void set_db_expression()
|
|
{
|
|
if( model_connector )
|
|
{
|
|
DbConnector * db_connector = model_connector->get_db_connector();
|
|
|
|
if( db_connector )
|
|
{
|
|
db_expression = db_connector->get_expression();
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
template<typename FieldValue>
|
|
void field_to_stream(const wchar_t * table_name, int table_index, const wchar_t * field_name, const FieldValue & field_value)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
model_env.table2_name = table_name;
|
|
model_env.table2_index = table_index;
|
|
|
|
db_expression->field_to_stream(*out_stream, field_name, field_value, FT::default_type, &model_env);
|
|
|
|
model_env.table2_name = nullptr;
|
|
model_env.table2_index = 0;
|
|
}
|
|
}
|
|
|
|
|
|
template<typename Container>
|
|
void field_in(const wchar_t * table_name, int table_index, const wchar_t * field_name, const Container & container)
|
|
{
|
|
if( db_expression )
|
|
{
|
|
model_env.table2_name = table_name;
|
|
model_env.table2_index = table_index;
|
|
|
|
db_expression->field_in(*out_stream, field_name, container, &model_env);
|
|
|
|
model_env.table2_name = nullptr;
|
|
model_env.table2_index = 0;
|
|
}
|
|
}
|
|
|
|
};
|
|
|
|
} // namespace
|
|
|
|
#endif
|