WriteToDatabase

VTKExamples/Cxx/Databases/SQL/MySQL/WriteToDatabase

Code

WriteToDatabase.cxx

#include <vtkSmartPointer.h>
#include <vtkMySQLDatabase.h>
#include <vtkSQLQuery.h>
#include <vtkVariant.h>

int main(int, char *[])
{
  // url syntax:
  // mysql://'[[username[':'password]'@']hostname[':'port]]'/'[dbname]

  vtkSmartPointer<vtkMySQLDatabase> db =
    vtkSmartPointer<vtkMySQLDatabase>::Take(dynamic_cast<vtkMySQLDatabase*>(
            vtkSQLDatabase::CreateFromURL( "mysql://root@localhost/TestDatabase" ) ));

  bool status = db->Open();

  std::cout << "Database open? " << status << std::endl;

  if(!status)
  {
    return EXIT_FAILURE;
  }

  vtkSmartPointer<vtkSQLQuery> query =
    vtkSmartPointer<vtkSQLQuery>::Take(db->GetQueryInstance());

  std::string createQuery( "INSERT INTO TestTable (PointId) VALUES(8)");
  std::cout << createQuery << std::endl;
  query->SetQuery( createQuery.c_str() );
  query->Execute();

  return EXIT_SUCCESS;
}

CMakeLists.txt

cmake_minimum_required(VERSION 3.3 FATAL_ERROR)

project(WriteToDatabase)

find_package(VTK COMPONENTS 
  vtkCommonCore
  vtkIOMySQL
  vtkIOSQL QUIET)
if (NOT VTK_FOUND)
  message("Skipping WriteToDatabase: ${VTK_NOT_FOUND_MESSAGE}")
  return ()
endif()
message (STATUS "VTK_VERSION: ${VTK_VERSION}")
if (VTK_VERSION VERSION_LESS "8.90.0")
  # old system
  include(${VTK_USE_FILE})
  add_executable(WriteToDatabase MACOSX_BUNDLE WriteToDatabase.cxx )
  target_link_libraries(WriteToDatabase PRIVATE ${VTK_LIBRARIES})
else ()
  # include all components
  add_executable(WriteToDatabase MACOSX_BUNDLE WriteToDatabase.cxx )
  target_link_libraries(WriteToDatabase PRIVATE ${VTK_LIBRARIES})
  # vtk_module_autoinit is needed
  vtk_module_autoinit(
    TARGETS WriteToDatabase
    MODULES ${VTK_LIBRARIES}
    )
endif () 

Download and Build WriteToDatabase

Click here to download WriteToDatabase and its CMakeLists.txt file. Once the tarball WriteToDatabase.tar has been downloaded and extracted,

cd WriteToDatabase/build 

If VTK is installed:

cmake ..

If VTK is not installed but compiled on your system, you will need to specify the path to your VTK build:

cmake -DVTK_DIR:PATH=/home/me/vtk_build ..

Build the project:

make

and run it:

./WriteToDatabase

WINDOWS USERS

Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.