public static AirbnbMain GetInstance()
{
if (instance == null)
{
instance = new AirbnbMain();
}
return(instance);
}
public bool SaveData()
{
if (fileName == null || fileName.Length == 0)
{
return(false);
}
else
{
try
{
// Open up a new streamwriter to save our file with
StreamWriter writer = new StreamWriter(fileName);
// For each district in the districts array
for (int i = 1; i < districts.Length; i++)
{
// Get district from the instance of AirbnbMain
District district = AirbnbMain.GetInstance().GetDistricts()[i];
writer.WriteLine(district.GetName());
writer.WriteLine(district.GetNumInCollection());
// if district doesnt have 0 neighbourhoods
if (district.GetNumInCollection() != 0)
{
Neighbourhood[] neighbourhoods = district.GetNeighbourhoods();
// For each neighbourhood in te district
for (int y = 0; y < neighbourhoods.Length; y++)
{
Neighbourhood neighbourhood = neighbourhoods[y];
if (neighbourhood.GetName() == null)
{
writer.WriteLine("Error in name");
}
else
{
writer.WriteLine(neighbourhood.GetName());
}
// Write number of neighbourhoods to new line
writer.WriteLine(neighbourhood.GetNumInCollection());
Property[] properties = neighbourhood.GetProperties();
// For each property in the neighbourhood
for (int z = 0; z < neighbourhood.GetNumInCollection(); z++)
{
Property property = properties[z];
// Write fields to line from relevant 'Get' calls
writer.WriteLine(property.GetId());
writer.WriteLine(property.GetName());
writer.WriteLine(property.GetHostId());
writer.WriteLine(property.GetHostName());
writer.WriteLine(property.GetNumHostProperties());
writer.WriteLine(property.GetLatitude());
writer.WriteLine(property.GetLongitude());
writer.WriteLine(property.GetRoomType());
writer.WriteLine(property.GetPrice());
writer.WriteLine(property.GetMinNightsStay());
writer.WriteLine(property.GetAvailableDaysPerYear());
}
}
}
}
// Close the writer to avoid errors;
writer.Close();
}
catch (FileNotFoundException e) // Catch file not found error, can't find file
{
Debug.WriteLine("Unable to find the data file. " + e.Message);
MessageBox.Show("Unable to find the data file. " + e.Message);
}
catch (IOException e) // Catch IOException, something went't wrong while handling the file
{
Debug.WriteLine("Error occurred while handling data file. " + e.Message);
MessageBox.Show("Error occurred while handling data file. " + e.Message);
}
return(true);
}
}