Method Open

IO/PostgreSQL/vtkPostgreSQLDatabase.cxx:221–291

------------------------------------------------------------------------------

//------------------------------------------------------------------------------
bool vtkPostgreSQLDatabase::Open(const char* password)
{
  if (!this->HostName || !this->DatabaseName)
  {
    this->SetLastErrorText("Cannot open database because HostName and/or DatabaseName are null.");
    vtkErrorMacro(<< this->GetLastErrorText());
    return false;
  }

  if (this->Connection)
  {
    if (this->ConnectionMTime > this->URLMTime)
    {
      return true; // we already had that database open.
    }
    this->Close(); // close the old connection before opening a new one
  }

  std::string options;
  options = "dbname=";
  options += this->DatabaseName;

  if (this->ServerPort > 0)
  {
    options += " port=";
    std::ostringstream stream;
    stream << this->ServerPort;
    options += stream.str();
  }
  if (this->User && strlen(this->User) > 0)
  {
    options += " user=";
    options += this->User;
  }
  if (password && this->Password != password)
  {
    delete[] this->Password;
    this->Password = password ? vtksys::SystemTools::DuplicateString(password) : nullptr;
  }
  if (this->Password && strlen(this->Password) > 0)
  {
    options += " password=";
    options += this->Password;
  }
  if (this->ConnectOptions && strlen(this->ConnectOptions) > 0)
  {
    options += this->ConnectOptions;
  }

  // If localhost is specified, try the local socket connection
  // first. Only if that doesn't work will we try the loopback
  // device.
  if (!strcmp(this->HostName, "localhost"))
  {
    if (this->OpenInternal(options.c_str()))
    {
      this->SetLastErrorText(nullptr);
      return true;