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/*=========================================================================
Program: Visualization Toolkit
Module: DatabaseSchemaWith2Tables.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/*----------------------------------------------------------------------------
Copyright (c) Sandia Corporation
See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.
----------------------------------------------------------------------------*/
// .SECTION Thanks
// Thanks to Philippe Pebay from Sandia National Laboratories for implementing
// this example of a database schema.
#include "DatabaseSchemaWith2Tables.h"
#include <stdexcept>
#include "vtkSQLDatabaseSchema.h"
DatabaseSchemaWith2Tables::DatabaseSchemaWith2Tables()
{
this->Create();
}
DatabaseSchemaWith2Tables::~DatabaseSchemaWith2Tables()
{
if (this->Schema)
{
this->Schema->Delete();
}
}
void DatabaseSchemaWith2Tables::Create()
{
cerr << "@@ Creating a schema...";
this->Schema = vtkSQLDatabaseSchema::New();
this->Schema->SetName("TestSchema");
// Create PostgreSQL-specific preambles to load the PL/PGSQL language and create a function
// with this language. These will be ignored by other backends.
this->Schema->AddPreamble("dropplpgsql", "DROP EXTENSION IF EXISTS PLPGSQL", VTK_SQL_POSTGRESQL);
this->Schema->AddPreamble("loadplpgsql", "CREATE LANGUAGE PLPGSQL", VTK_SQL_POSTGRESQL);
this->Schema->AddPreamble("createsomefunction",
"CREATE OR REPLACE FUNCTION somefunction() RETURNS TRIGGER AS $btable$ "
"BEGIN "
"INSERT INTO btable (somevalue) VALUES (NEW.somenmbr); "
"RETURN NEW; "
"END; $btable$ LANGUAGE PLPGSQL",
VTK_SQL_POSTGRESQL);
// Insert in alphabetical order so that SHOW TABLES does not mix handles
this->TableAHandle = this->Schema->AddTableMultipleArguments("atable",
vtkSQLDatabaseSchema::COLUMN_TOKEN, vtkSQLDatabaseSchema::SERIAL, "tablekey", 0, "",
vtkSQLDatabaseSchema::COLUMN_TOKEN, vtkSQLDatabaseSchema::VARCHAR, "somename", 64, "NOT NULL",
vtkSQLDatabaseSchema::COLUMN_TOKEN, vtkSQLDatabaseSchema::BIGINT, "somenmbr", 17, "DEFAULT 0",
vtkSQLDatabaseSchema::INDEX_TOKEN, vtkSQLDatabaseSchema::PRIMARY_KEY, "bigkey",
vtkSQLDatabaseSchema::INDEX_COLUMN_TOKEN, "tablekey", vtkSQLDatabaseSchema::END_INDEX_TOKEN,
vtkSQLDatabaseSchema::INDEX_TOKEN, vtkSQLDatabaseSchema::UNIQUE, "reverselookup",
vtkSQLDatabaseSchema::INDEX_COLUMN_TOKEN, "somename", vtkSQLDatabaseSchema::INDEX_COLUMN_TOKEN,
"somenmbr", vtkSQLDatabaseSchema::END_INDEX_TOKEN, vtkSQLDatabaseSchema::TRIGGER_TOKEN,
vtkSQLDatabaseSchema::AFTER_INSERT, "inserttrigger", "DO NOTHING", VTK_SQL_SQLITE,
vtkSQLDatabaseSchema::TRIGGER_TOKEN, vtkSQLDatabaseSchema::AFTER_INSERT, "inserttrigger",
"FOR EACH ROW EXECUTE PROCEDURE somefunction ()", VTK_SQL_POSTGRESQL,
vtkSQLDatabaseSchema::TRIGGER_TOKEN, vtkSQLDatabaseSchema::AFTER_INSERT, "inserttrigger",
"FOR EACH ROW INSERT INTO btable SET somevalue = NEW.somenmbr", VTK_SQL_MYSQL,
vtkSQLDatabaseSchema::END_TABLE_TOKEN);
if (this->TableAHandle < 0)
{
throw std::runtime_error("Could not create test schema: Failed to create atable");
}
this->TableBHandle =
this->Schema->AddTableMultipleArguments("btable", vtkSQLDatabaseSchema::COLUMN_TOKEN,
vtkSQLDatabaseSchema::SERIAL, "tablekey", 0, "", vtkSQLDatabaseSchema::COLUMN_TOKEN,
vtkSQLDatabaseSchema::BIGINT, "somevalue", 12, "DEFAULT 0", vtkSQLDatabaseSchema::INDEX_TOKEN,
vtkSQLDatabaseSchema::PRIMARY_KEY, "", vtkSQLDatabaseSchema::INDEX_COLUMN_TOKEN, "tablekey",
vtkSQLDatabaseSchema::END_INDEX_TOKEN, vtkSQLDatabaseSchema::END_TABLE_TOKEN);
if (this->TableBHandle < 0)
{
throw std::runtime_error("Could not create test schema: Failed to create btable");
}
cerr << " done." << endl;
}
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