private static void ImportMountain(JToken mountainObj)
{
var context = new MountainsContext();
var mountain = new Mountain();
// Parse mountain
if (mountainObj["mountainName"] == null)
{
throw new Exception("Missing mountain name");
}
mountain.Name = mountainObj["mountainName"].Value<string>();
// Parse peaks
var peaks = mountainObj["peaks"];
if (peaks != null)
{
foreach (var peak in peaks)
{
if (peak["peakName"] == null)
{
throw new Exception("Missing peak name");
}
string peakName = peak["peakName"].Value<string>();
if (peak["elevation"] == null)
{
throw new Exception("Missing peak elevation");
}
int elevation = peak["elevation"].Value<int>();
mountain.Peaks.Add(new Peak() { Name = peakName, Elevation = elevation});
}
}
// Parse countries
var countryNames = mountainObj["countries"];
if (countryNames != null)
{
foreach (var countryName in countryNames)
{
var countryCode =
new string(countryName.Value<string>().Take(2).ToArray()).ToUpper();
var country = context.Countries.Find(countryCode);
if (country == null)
{
country = new Country() { Code = countryCode, Name = countryName.Value<string>() };
}
mountain.Countries.Add(country);
}
}
// Persist the mountain in the database
context.Mountains.Add(mountain);
context.SaveChanges();
}
static void Main()
{
var context = new MountainsContext();
var mountains = context.Mountains.Select( m =>
new {
m.Name,
Countries = m.Countries.Select(c => c.Name),
Peaks = m.Peaks.Select(p => new { p.Name, p.Elevation })
});
foreach (var mountain in mountains)
{
Console.WriteLine(
"{0}, countries: {1}, peaks: {2}",
mountain.Name,
string.Join(", ", mountain.Countries),
string.Join(", ", mountain.Peaks.Select(
p => p.Name + " (elevation " + p.Elevation + ")")));
}
}
static void Main()
{
var context = new MountainsContext();
var mountains = context.Mountains.Select(m =>
new {
m.Name,
Countries = m.Countries.Select(c => c.Name),
Peaks = m.Peaks.Select(p => new { p.Name, p.Elevation })
});
foreach (var mountain in mountains)
{
Console.WriteLine(
"{0}, countries: {1}, peaks: {2}",
mountain.Name,
string.Join(", ", mountain.Countries),
string.Join(", ", mountain.Peaks.Select(
p => p.Name + " (elevation " + p.Elevation + ")")));
}
}
