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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#pragma once
#include "createtablesqlstatementbuilder.h"
#include "sqliteglobal.h"
#include "sqlitecolumn.h"
#include "sqliteindex.h"
#include "sqliteexception.h"
namespace Sqlite {
class Database;
template<typename ColumnType>
class BasicTable
{
public:
using Column = ::Sqlite::BasicColumn<ColumnType>;
using ColumnConstReferences = ::Sqlite::BasicColumnConstReferences<ColumnType>;
using Columns = ::Sqlite::BasicColumns<ColumnType>;
BasicTable(std::size_t reserve = 10)
{
m_sqliteColumns.reserve(reserve);
m_sqliteIndices.reserve(reserve);
}
void setName(Utils::SmallStringView name) { m_tableName = name; }
Utils::SmallStringView name() const
{
return m_tableName;
}
void setUseWithoutRowId(bool useWithoutWorId)
{
m_withoutRowId = useWithoutWorId;
}
bool useWithoutRowId() const
{
return m_withoutRowId;
}
void setUseIfNotExists(bool useIfNotExists)
{
m_useIfNotExists = useIfNotExists;
}
void setUseTemporaryTable(bool useTemporaryTable)
{
m_useTemporaryTable = useTemporaryTable;
}
Column &addColumn(Utils::SmallStringView name, ColumnType type = {}, Constraints &&constraints = {})
{
m_sqliteColumns.emplace_back(m_tableName, name, type, std::move(constraints));
return m_sqliteColumns.back();
}
Column &addForeignKeyColumn(Utils::SmallStringView name,
const BasicTable &referencedTable,
ForeignKeyAction foreignKeyupdateAction = {},
ForeignKeyAction foreignKeyDeleteAction = {},
Enforment foreignKeyEnforcement = {},
Constraints &&constraints = {},
ColumnType type = ColumnType::Integer)
{
constraints.emplace_back(ForeignKey{referencedTable.name(),
"",
foreignKeyupdateAction,
foreignKeyDeleteAction,
foreignKeyEnforcement});
m_sqliteColumns.emplace_back(m_tableName, name, type, std::move(constraints));
return m_sqliteColumns.back();
}
Column &addForeignKeyColumn(Utils::SmallStringView name,
const BasicColumn<ColumnType> &referencedColumn,
ForeignKeyAction foreignKeyupdateAction = {},
ForeignKeyAction foreignKeyDeleteAction = {},
Enforment foreignKeyEnforcement = {},
Constraints &&constraints = {})
{
if (!constainsUniqueIndex(referencedColumn.constraints))
throw ForeignKeyColumnIsNotUnique("Foreign column key must be unique!");
constraints.emplace_back(ForeignKey{referencedColumn.tableName,
referencedColumn.name,
foreignKeyupdateAction,
foreignKeyDeleteAction,
foreignKeyEnforcement});
m_sqliteColumns.emplace_back(m_tableName,
name,
referencedColumn.type,
std::move(constraints));
return m_sqliteColumns.back();
}
void addPrimaryKeyContraint(const BasicColumnConstReferences<ColumnType> &columns)
{
Utils::SmallStringVector columnNames;
columnNames.reserve(columns.size());
for (const auto &column : columns)
columnNames.emplace_back(column.name);
m_tableConstraints.emplace_back(TablePrimaryKey{std::move(columnNames)});
}
Index &addIndex(const BasicColumnConstReferences<ColumnType> &columns,
Utils::SmallStringView condition = {})
{
return m_sqliteIndices.emplace_back(m_tableName,
sqliteColumnNames(columns),
IndexType::Normal,
condition);
}
Index &addUniqueIndex(const BasicColumnConstReferences<ColumnType> &columns,
Utils::SmallStringView condition = {})
{
return m_sqliteIndices.emplace_back(m_tableName,
sqliteColumnNames(columns),
IndexType::Unique,
condition);
}
const Columns &columns() const { return m_sqliteColumns; }
bool isReady() const
{
return m_isReady;
}
template <typename Database>
void initialize(Database &database)
{
CreateTableSqlStatementBuilder<ColumnType> builder;
builder.setTableName(m_tableName.clone());
builder.setUseWithoutRowId(m_withoutRowId);
builder.setUseIfNotExists(m_useIfNotExists);
builder.setUseTemporaryTable(m_useTemporaryTable);
builder.setColumns(m_sqliteColumns);
builder.setConstraints(m_tableConstraints);
database.execute(builder.sqlStatement());
initializeIndices(database);
m_isReady = true;
}
template <typename Database>
void initializeIndices(Database &database)
{
for (const Index &index : m_sqliteIndices)
database.execute(index.sqlStatement());
}
friend bool operator==(const BasicTable &first, const BasicTable &second)
{
return first.m_tableName == second.m_tableName
&& first.m_withoutRowId == second.m_withoutRowId
&& first.m_useIfNotExists == second.m_useIfNotExists
&& first.m_isReady == second.m_isReady
&& first.m_sqliteColumns == second.m_sqliteColumns;
}
static bool constainsUniqueIndex(const Constraints &constraints)
{
return std::find_if(constraints.begin(),
constraints.end(),
[](const Constraint &constraint) {
return Utils::holds_alternative<Unique>(constraint)
|| Utils::holds_alternative<PrimaryKey>(constraint);
})
!= constraints.end();
}
private:
Utils::SmallStringVector sqliteColumnNames(const ColumnConstReferences &columns)
{
Utils::SmallStringVector columnNames;
for (const Column &column : columns)
columnNames.push_back(column.name);
return columnNames;
}
private:
Utils::SmallString m_tableName;
Columns m_sqliteColumns;
SqliteIndices m_sqliteIndices;
TableConstraints m_tableConstraints;
bool m_withoutRowId = false;
bool m_useIfNotExists = false;
bool m_useTemporaryTable = false;
bool m_isReady = false;
};
using Table = BasicTable<ColumnType>;
using StrictTable = BasicTable<StrictColumnType>;
} // namespace Sqlite
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