morm/src/modeldata.h

/*
 * 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) 2019, 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_modeldata
#define headerfile_morm_modeldata


namespace morm
{

class ModelData
{
public:

	ModelData()
	{
		morm_current_max_column = 1;
		current_column = 1;
	}

	virtual ~ModelData()
	{
	}

	bool has_autogenerated_select;


	PT::TextStream morm_finder_join_tables;
	std::list<std::string> morm_foreign_keys;
	int morm_current_max_column;
	std::map<std::string, int> morm_table_join_map;

	int current_column;
	//std::vector<int> table_index;



	virtual void prepare_to_new_select()
	{
		has_autogenerated_select = false;

		morm_current_max_column = 1;
		morm_finder_join_tables.clear();
		morm_table_join_map.clear();
		morm_foreign_keys.clear();
	}


	virtual int add_join_table(const PT::TextStream & table_name)
	{
		std::string table_name_str;
		table_name.to_string(table_name_str);

		return add_join_table(table_name_str);
	}

	virtual int add_join_table(const std::string & table_name)
	{
		auto res = morm_table_join_map.insert(std::make_pair(table_name, 1));

		if( !res.second )
		{
			res.first->second += 1;
		}

		return res.first->second;
	}

//	virtual int find_join_table_index(const std::string & table_name)
//	{
//		auto iter = morm_table_join_map.find(table_name);
//
//		if( iter != morm_table_join_map.end() )
//		{
//			return iter->second;
//		}
//
//		return 0;
//	}

//	virtual int get_table_index(int column)
//	{
//		if( column < (int)table_index.size() )
//			return table_index[column];
//
//		return 0;
//	}


	/*
	 * may to add:
	 * std::set<std::wstring> skip_columns;
	 * and Finder can use this
	 * also update and insert from Model
	 * (but what about the same name of columns through the whole objects-tree?
	 * may we can save the name of the table too?)
	 *
	 *
	 */
};

}

#endif