958 lines
20 KiB
C++
958 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) 2018-2021, 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 "baseexpression.h"
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#include "morm_types.h"
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#include "model.h"
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#include "utf8/utf8.h"
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namespace morm
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{
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BaseExpression::BaseExpression()
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{
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clear();
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}
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BaseExpression::~BaseExpression()
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{
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}
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void BaseExpression::clear()
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{
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out_stream = nullptr;
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is_first_field = false;
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work_mode = 0;
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use_prefix = false;
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}
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void BaseExpression::set_work_mode(int work_mode)
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{
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this->work_mode = work_mode;
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}
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int BaseExpression::get_work_mode()
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{
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return work_mode;
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}
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pt::TextStream * BaseExpression::get_text_stream()
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{
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return out_stream;
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}
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void BaseExpression::set_text_stream(pt::TextStream * out_stream)
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{
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this->out_stream = out_stream;
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}
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pt::TextStream * BaseExpression::get_current_stream()
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{
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return out_stream;
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}
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void BaseExpression::allow_to_use_prefix(bool use_prefix)
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{
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this->use_prefix = use_prefix;
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}
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bool BaseExpression::get_allow_to_use_prefix()
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{
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return use_prefix;
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}
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void BaseExpression::generate_from_model(pt::TextStream & stream, Model & model)
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{
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this->out_stream = &stream;
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generate_from_model(model);
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this->out_stream = nullptr;
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}
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void BaseExpression::generate_from_model(Model & model)
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{
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if( out_stream )
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{
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before_generate_from_model();
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dump_additional_info(model);
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model.fields();
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after_generate_from_model();
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}
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}
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void BaseExpression::dump_additional_info(Model & model)
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{
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if( model.model_env && model.model_env->dump_mode )
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{
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field(L"model_save_mode", model.save_mode, FT::no_insertable | FT::no_updatable | FT::no_fetchable, model.model_env);
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field(L"has_primary_key_set", model.has_primary_key_set, FT::no_insertable | FT::no_updatable | FT::no_fetchable, model.model_env);
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}
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}
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void BaseExpression::before_generate_from_model()
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{
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is_first_field = true;
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}
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void BaseExpression::after_generate_from_model()
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{
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}
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bool BaseExpression::can_field_be_generated(const FT &)
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{
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return true;
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}
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void BaseExpression::field_before()
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{
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if( !is_first_field )
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{
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// put a separator between fields
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}
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}
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void BaseExpression::field_after()
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{
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is_first_field = false;
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}
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void BaseExpression::put_field_name_and_table_if_needed(const wchar_t * field_name, const FT & field_type, ModelEnv * model_env)
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{
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if( use_prefix && model_env )
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{
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if( !is_empty_field(model_env->table2_name) )
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{
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put_table_with_index_and_field(model_env->table2_name, model_env->table2_index, field_name, field_type);
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}
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else
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{
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put_table_with_index_and_field(model_env->table_name, model_env->table_index, field_name, field_type);
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}
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}
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else
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{
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put_field_name(field_name, field_type, model_env);
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}
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}
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void BaseExpression::put_field_name(const wchar_t * field_name, const FT & field_type, ModelEnv * model_env)
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{
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if( field_type.is_raw_field_name() )
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{
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(*out_stream) << field_name;
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}
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else
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{
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before_field_name();
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esc(field_name, *out_stream);
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after_field_name();
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}
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}
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void BaseExpression::save_foreign_key(const wchar_t * field_name, const FT & field_type, ModelEnv * model_env)
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{
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pt::TextStream str;
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pt::TextStream * old_out_stream = out_stream;
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out_stream = &str;
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put_field_name(field_name, field_type, model_env);
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out_stream = old_out_stream;
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if( model_env && model_env->finder_helper )
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{
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model_env->finder_helper->foreign_keys.emplace_back();
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std::string & key_str = model_env->finder_helper->foreign_keys.back();
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str.to_string(key_str, false);
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}
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}
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void BaseExpression::schema_table_separator()
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{
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}
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void BaseExpression::table_field_separator()
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{
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}
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void BaseExpression::before_schema_name()
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{
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}
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void BaseExpression::after_schema_name()
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{
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}
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void BaseExpression::before_table_name()
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{
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}
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void BaseExpression::after_table_name()
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{
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}
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void BaseExpression::before_field_name()
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{
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}
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void BaseExpression::after_field_name()
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{
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}
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void BaseExpression::before_field_value(const std::wstring &, const FT & field_type)
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{
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before_field_value_string(field_type);
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}
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void BaseExpression::before_field_value(const std::string &, const FT & field_type)
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{
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before_field_value_string(field_type);
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}
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void BaseExpression::after_field_value(const std::wstring &, const FT & field_type)
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{
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after_field_value_string(field_type);
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}
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void BaseExpression::after_field_value(const std::string &, const FT & field_type)
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{
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after_field_value_string(field_type);
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}
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void BaseExpression::before_field_value(const wchar_t *, const FT & field_type)
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{
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before_field_value_string(field_type);
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}
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void BaseExpression::after_field_value(const wchar_t *, const FT & field_type)
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{
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after_field_value_string(field_type);
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}
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void BaseExpression::before_field_value(const char *, const FT & field_type)
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{
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before_field_value_string(field_type);
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}
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void BaseExpression::after_field_value(const char *, const FT & field_type)
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{
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after_field_value_string(field_type);
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}
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void BaseExpression::before_field_value(wchar_t, const FT & field_type)
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{
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before_field_value_string(field_type);
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}
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void BaseExpression::after_field_value(wchar_t, const FT & field_type)
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{
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after_field_value_string(field_type);
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}
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void BaseExpression::before_field_value(char, const FT & field_type)
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{
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before_field_value_string(field_type);
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}
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void BaseExpression::after_field_value(char, const FT & field_type)
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{
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after_field_value_string(field_type);
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}
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void BaseExpression::before_field_value(const pt::Date &, const FT & field_type)
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{
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before_field_value_string(field_type);
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}
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void BaseExpression::after_field_value(const pt::Date &, const FT & field_type)
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{
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after_field_value_string(field_type);
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}
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void BaseExpression::before_field_value(const pt::Space &, const FT & field_type)
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{
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before_field_value_string(field_type);
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}
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void BaseExpression::after_field_value(const pt::Space &, const FT & field_type)
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{
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after_field_value_string(field_type);
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}
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void BaseExpression::put_name_value_separator()
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{
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(*out_stream) << ',';
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}
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char BaseExpression::char_to_hex_part(char c)
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{
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if( c < 10 )
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return c + '0';
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return c - 10 + 'A';
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}
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void BaseExpression::char_to_hex(char c, pt::TextStream & stream)
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{
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stream << char_to_hex_part(((unsigned char)c) >> 4);
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stream << char_to_hex_part(((unsigned char)c) & 0x0f);
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}
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void BaseExpression::esc(char val, pt::TextStream & stream, const FT & field_type)
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{
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if( field_type.is_binary() || field_type.is_hexadecimal() )
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{
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char_to_hex(val, stream);
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}
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else
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{
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stream << val;
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}
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}
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void BaseExpression::esc(unsigned char val, pt::TextStream & stream, const FT & field_type)
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{
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esc(static_cast<char>(val), stream, field_type);
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}
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void BaseExpression::esc(wchar_t val, pt::TextStream & stream, const FT & field_type)
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{
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if( field_type.use_utf8() )
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{
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char utf8_buf[10];
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size_t utf8_len = pt::IntToUTF8((int)val, utf8_buf, sizeof(utf8_buf));
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for(size_t a = 0 ; a < utf8_len ; ++a)
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{
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esc(utf8_buf[a], stream, field_type);
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}
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}
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else
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{
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esc(static_cast<char>(val), stream, field_type);
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}
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}
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void BaseExpression::esc(const wchar_t * val, bool has_known_length, size_t len, pt::TextStream & stream, const FT & field_type)
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{
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if( field_type.use_utf8() )
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{
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char utf8_buf[10];
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for(size_t i = 0 ; has_known_length ? (i < len) : val[i] != 0 ; ++i)
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{
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size_t utf8_len = pt::IntToUTF8((int)val[i], utf8_buf, sizeof(utf8_buf));
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for(size_t a = 0 ; a < utf8_len ; ++a)
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{
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esc(utf8_buf[a], stream, field_type);
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}
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}
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}
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else
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{
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for(size_t i = 0 ; has_known_length ? (i < len) : val[i] != 0 ; ++i)
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{
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esc(static_cast<char>(val[i]), stream, field_type);
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}
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}
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}
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void BaseExpression::esc(const std::wstring & val, pt::TextStream & stream, const FT & field_type)
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{
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esc(val.c_str(), true, val.size(), stream, field_type);
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}
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void BaseExpression::esc(const wchar_t * val, pt::TextStream & stream, const FT & field_type)
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{
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esc(val, false, 0, stream, field_type);
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}
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void BaseExpression::esc(const std::string & val, pt::TextStream & stream, const FT & field_type)
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{
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for(size_t i = 0 ; i < val.size() ; ++i)
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{
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esc(val[i], stream, field_type);
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}
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}
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void BaseExpression::esc(const char * val, pt::TextStream & stream, const FT & field_type)
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{
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for(size_t i = 0 ; val[i] != 0 ; ++i)
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{
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esc(val[i], stream, field_type);
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}
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}
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void BaseExpression::esc(bool val, pt::TextStream & stream, const FT & field_type)
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{
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if( val )
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stream << "true";
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else
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stream << "false";
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}
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void BaseExpression::esc(short val, pt::TextStream & stream, const FT & field_type)
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{
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stream << val;
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}
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void BaseExpression::esc(unsigned short val, pt::TextStream & stream, const FT & field_type)
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{
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stream << val;
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}
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void BaseExpression::esc(int val, pt::TextStream & stream, const FT & field_type)
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{
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stream << val;
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}
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void BaseExpression::esc(unsigned int val, pt::TextStream & stream, const FT & field_type)
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{
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stream << val;
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}
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void BaseExpression::esc(long val, pt::TextStream & stream, const FT & field_type)
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{
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stream << val;
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}
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void BaseExpression::esc(unsigned long val, pt::TextStream & stream, const FT & field_type)
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{
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stream << val;
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}
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void BaseExpression::esc(long long val, pt::TextStream & stream, const FT & field_type)
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{
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// not implemented in pt::TextStream yet
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//stream << val;
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}
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void BaseExpression::esc(unsigned long long val, pt::TextStream & stream, const FT & field_type)
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{
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//stream << val;
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}
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void BaseExpression::esc(float val, pt::TextStream & stream, const FT & field_type)
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{
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stream << val;
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}
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void BaseExpression::esc(double val, pt::TextStream & stream, const FT & field_type)
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{
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stream << val;
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}
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void BaseExpression::esc(long double val, pt::TextStream & stream, const FT & field_type)
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{
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// IMPLEMENT ME in pt::TextStream
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//stream << val;
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}
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void BaseExpression::esc(const pt::Date & date, pt::TextStream & stream, const FT & field_type)
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{
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stream << date;
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}
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void BaseExpression::esc(const pt::TextStream & val, pt::TextStream & stream, const FT & field_type)
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{
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pt::TextStream::const_iterator i = val.begin();
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for(; i != val.end() ; ++i)
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{
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esc(*i, stream, field_type);
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}
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}
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void BaseExpression::esc(const pt::WTextStream & val, pt::TextStream & stream, const FT & field_type)
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{
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pt::WTextStream::const_iterator i = val.begin();
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for(; i != val.end() ; ++i)
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{
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esc(*i, stream, field_type);
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}
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}
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void BaseExpression::esc(const pt::Space & space, pt::TextStream & stream, const FT & field_type)
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{
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pt::WTextStream tmp_stream;
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space.serialize_to_space_stream(tmp_stream, true);
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esc(tmp_stream, stream, field_type);
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}
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//void BaseExpression::put_type(char val, pt::TextStream & stream)
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//{
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// stream << "char";
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//}
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//
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//void BaseExpression::put_type(unsigned char val, pt::TextStream & stream)
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//{
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// stream << "unsigned char";
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//}
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//
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//
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//void BaseExpression::put_type(const std::wstring & val, pt::TextStream & stream)
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//{
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// stream << "text";
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//}
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//
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//void BaseExpression::put_type(const wchar_t * val, pt::TextStream & stream)
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//{
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// stream << "text";
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//}
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//
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//
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//void BaseExpression::put_type(const std::string & val, pt::TextStream & stream)
|
|
//{
|
|
// stream << "text";
|
|
//}
|
|
//
|
|
//void BaseExpression::put_type(const char * val, pt::TextStream & stream)
|
|
//{
|
|
// stream << "text";
|
|
//}
|
|
//
|
|
//
|
|
//void BaseExpression::put_type(bool val, pt::TextStream & stream)
|
|
//{
|
|
// stream << "boolean";
|
|
//}
|
|
//
|
|
//void BaseExpression::put_type(short val, pt::TextStream & stream)
|
|
//{
|
|
// stream << "short integer";
|
|
//}
|
|
//
|
|
//void BaseExpression::put_type(unsigned short val, pt::TextStream & stream)
|
|
//{
|
|
// stream << "unsigned short integer";
|
|
//}
|
|
//
|
|
//void BaseExpression::put_type(int val, pt::TextStream & stream)
|
|
//{
|
|
// stream << "integer";
|
|
//}
|
|
//
|
|
//void BaseExpression::put_type(unsigned int val, pt::TextStream & stream)
|
|
//{
|
|
// stream << "unsigned integer";
|
|
//}
|
|
//
|
|
//void BaseExpression::put_type(long val, pt::TextStream & stream)
|
|
//{
|
|
// stream << "long integer";
|
|
//}
|
|
//
|
|
//void BaseExpression::put_type(unsigned long val, pt::TextStream & stream)
|
|
//{
|
|
// stream << "unsigned long integer";
|
|
//}
|
|
//
|
|
//void BaseExpression::put_type(long long val, pt::TextStream & stream)
|
|
//{
|
|
// stream << "very long integer";
|
|
//}
|
|
//
|
|
//void BaseExpression::put_type(unsigned long long val, pt::TextStream & stream)
|
|
//{
|
|
// stream << "unsigned very long integer";
|
|
//}
|
|
//
|
|
//void BaseExpression::put_type(float val, pt::TextStream & stream)
|
|
//{
|
|
// stream << "float";
|
|
//}
|
|
//
|
|
//void BaseExpression::put_type(double val, pt::TextStream & stream)
|
|
//{
|
|
// stream << "double";
|
|
//}
|
|
//
|
|
//void BaseExpression::put_type(long double val, pt::TextStream & stream)
|
|
//{
|
|
// stream << "long double";
|
|
//}
|
|
//
|
|
////void BaseExpression::put_type(void* val, pt::TextStream & stream)
|
|
////{
|
|
////}
|
|
//
|
|
//
|
|
//void BaseExpression::put_type(const pt::Date & date, pt::TextStream & stream)
|
|
//{
|
|
// stream << "date";
|
|
//}
|
|
//
|
|
//void BaseExpression::put_type(const Model & model, pt::TextStream & stream)
|
|
//{
|
|
// stream << "object";
|
|
//}
|
|
|
|
|
|
void BaseExpression::before_field_value_string(const FT & field_type)
|
|
{
|
|
}
|
|
|
|
void BaseExpression::after_field_value_string(const FT & field_type)
|
|
{
|
|
}
|
|
|
|
|
|
/*
|
|
* schema_name can be a null pointer or just pointing to an empty string
|
|
* in such a case we do not put the schema name
|
|
*/
|
|
void BaseExpression::put_schema_table(const wchar_t * schema_name, const wchar_t * table_name)
|
|
{
|
|
if( out_stream )
|
|
{
|
|
bool has_schema = false;
|
|
|
|
if( !is_empty_field(schema_name) )
|
|
{
|
|
has_schema = true;
|
|
before_schema_name();
|
|
esc(schema_name, *out_stream);
|
|
after_schema_name();
|
|
}
|
|
|
|
if( !is_empty_field(table_name) )
|
|
{
|
|
if( has_schema )
|
|
schema_table_separator();
|
|
|
|
before_table_name();
|
|
esc(table_name, *out_stream);
|
|
after_table_name();
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* schema_name can be empty - in such a case we do not put the schema name
|
|
*/
|
|
void BaseExpression::put_schema_table(const pt::WTextStream & schema_name, const pt::WTextStream & table_name)
|
|
{
|
|
if( out_stream )
|
|
{
|
|
bool has_schema = false;
|
|
|
|
if( !schema_name.empty() )
|
|
{
|
|
has_schema = true;
|
|
before_schema_name();
|
|
esc(schema_name, *out_stream);
|
|
after_schema_name();
|
|
}
|
|
|
|
if( !table_name.empty() )
|
|
{
|
|
if( has_schema )
|
|
schema_table_separator();
|
|
|
|
before_table_name();
|
|
esc(table_name, *out_stream);
|
|
after_table_name();
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void BaseExpression::put_table(const wchar_t * table_name)
|
|
{
|
|
if( out_stream )
|
|
{
|
|
before_table_name();
|
|
esc(table_name, *out_stream);
|
|
after_table_name();
|
|
}
|
|
}
|
|
|
|
|
|
void BaseExpression::put_table(const pt::WTextStream & table_name)
|
|
{
|
|
if( out_stream )
|
|
{
|
|
before_table_name();
|
|
esc(table_name, *out_stream);
|
|
after_table_name();
|
|
}
|
|
}
|
|
|
|
|
|
void BaseExpression::put_table_with_index(const wchar_t * table_name, int index)
|
|
{
|
|
if( out_stream )
|
|
{
|
|
before_table_name();
|
|
esc(table_name, *out_stream);
|
|
|
|
if( index > 1 )
|
|
{
|
|
(*out_stream) << index;
|
|
}
|
|
|
|
after_table_name();
|
|
}
|
|
}
|
|
|
|
|
|
void BaseExpression::put_table_with_index(const pt::WTextStream & table_name, int index)
|
|
{
|
|
if( out_stream )
|
|
{
|
|
before_table_name();
|
|
esc(table_name, *out_stream);
|
|
|
|
if( index > 1 )
|
|
{
|
|
(*out_stream) << index;
|
|
}
|
|
|
|
after_table_name();
|
|
}
|
|
}
|
|
|
|
|
|
void BaseExpression::put_table_with_index_and_field(const wchar_t * table_name, int index, const wchar_t * field_name, const FT & field_type)
|
|
{
|
|
if( out_stream )
|
|
{
|
|
put_table_with_index(table_name, index);
|
|
table_field_separator();
|
|
put_field_name(field_name, field_type, nullptr);
|
|
}
|
|
}
|
|
|
|
void BaseExpression::put_table_with_index_and_field(const pt::WTextStream & table_name, int index, const wchar_t * field_name, const FT & field_type)
|
|
{
|
|
if( out_stream )
|
|
{
|
|
put_table_with_index(table_name, index);
|
|
table_field_separator();
|
|
put_field_name(field_name, field_type, nullptr);
|
|
}
|
|
}
|
|
|
|
|
|
void BaseExpression::put_table_and_field(const wchar_t * table_name, const wchar_t * field_name, const FT & field_type)
|
|
{
|
|
if( out_stream )
|
|
{
|
|
put_table(table_name);
|
|
table_field_separator();
|
|
put_field_name(field_name, field_type, nullptr);
|
|
}
|
|
}
|
|
|
|
void BaseExpression::put_table_and_field(const pt::WTextStream & table_name, const wchar_t * field_name, const FT & field_type)
|
|
{
|
|
if( out_stream )
|
|
{
|
|
put_table(table_name);
|
|
table_field_separator();
|
|
put_field_name(field_name, field_type, nullptr);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
void BaseExpression::schema_table_to_stream(pt::TextStream & stream, const wchar_t * schema_name, const wchar_t * table_name)
|
|
{
|
|
this->out_stream = &stream;
|
|
put_schema_table(schema_name, table_name);
|
|
this->out_stream = nullptr;
|
|
}
|
|
|
|
|
|
void BaseExpression::schema_table_to_stream(pt::TextStream & stream, const pt::WTextStream & schema_name, const pt::WTextStream & table_name)
|
|
{
|
|
this->out_stream = &stream;
|
|
put_schema_table(schema_name, table_name);
|
|
this->out_stream = nullptr;
|
|
}
|
|
|
|
|
|
void BaseExpression::table_to_stream(pt::TextStream & stream, const wchar_t * table_name)
|
|
{
|
|
this->out_stream = &stream;
|
|
put_table(table_name);
|
|
this->out_stream = nullptr;
|
|
}
|
|
|
|
|
|
void BaseExpression::table_to_stream(pt::TextStream & stream, const pt::WTextStream & table_name)
|
|
{
|
|
this->out_stream = &stream;
|
|
put_table(table_name);
|
|
this->out_stream = nullptr;
|
|
}
|
|
|
|
|
|
void BaseExpression::table_with_index_to_stream(pt::TextStream & stream, const wchar_t * table_name, int index)
|
|
{
|
|
this->out_stream = &stream;
|
|
put_table_with_index(table_name, index);
|
|
this->out_stream = nullptr;
|
|
}
|
|
|
|
|
|
void BaseExpression::table_with_index_to_stream(pt::TextStream & stream, const pt::WTextStream & table_name, int index)
|
|
{
|
|
this->out_stream = &stream;
|
|
put_table_with_index(table_name, index);
|
|
this->out_stream = nullptr;
|
|
}
|
|
|
|
|
|
void BaseExpression::table_with_index_and_field_to_stream(pt::TextStream & stream, const wchar_t * table_name, int index, const wchar_t * field_name, const FT & field_type)
|
|
{
|
|
this->out_stream = &stream;
|
|
put_table_with_index_and_field(table_name, index, field_name, field_type);
|
|
this->out_stream = nullptr;
|
|
}
|
|
|
|
|
|
void BaseExpression::table_with_index_and_field_to_stream(pt::TextStream & stream, const pt::WTextStream & table_name, int index, const wchar_t * field_name, const FT & field_type)
|
|
{
|
|
this->out_stream = &stream;
|
|
put_table_with_index_and_field(table_name, index, field_name, field_type);
|
|
this->out_stream = nullptr;
|
|
}
|
|
|
|
|
|
void BaseExpression::table_and_field_to_stream(pt::TextStream & stream, const wchar_t * table_name, const wchar_t * field_name, const FT & field_type)
|
|
{
|
|
this->out_stream = &stream;
|
|
put_table_and_field(table_name, field_name, field_type);
|
|
this->out_stream = nullptr;
|
|
}
|
|
|
|
|
|
void BaseExpression::table_and_field_to_stream(pt::TextStream & stream, const pt::WTextStream & table_name, const wchar_t * field_name, const FT & field_type)
|
|
{
|
|
this->out_stream = &stream;
|
|
put_table_and_field(table_name, field_name, field_type);
|
|
this->out_stream = nullptr;
|
|
}
|
|
|
|
|
|
|
|
bool BaseExpression::is_empty_field(const wchar_t * value)
|
|
{
|
|
return (!value || *value == '\0');
|
|
}
|
|
|
|
|
|
}
|
|
|