private static void ProcessLenses(IEnumerable<XElement> lenses, Manufacturer manu, PhotographySystemEntities context)
{
foreach (var lens in lenses)
{
var lensModel = lens.Attribute("model").Value;
var lensType = lens.Attribute("type").Value;
var xlensPrice = lens.Attribute("price");
string lensPrice = null;
if (xlensPrice != null)
{
lensPrice = xlensPrice.Value;
}
var newLens = context.Lenses.FirstOrDefault(l => l.Model == lensModel);
if (newLens == null)
{
newLens = new Lens {Model = lensModel, Type = lensType};
if (lensPrice != null)
{
newLens.Price = decimal.Parse(lensPrice);
}
context.Lenses.Add(newLens);
manu.Lenses.Add(newLens);
context.SaveChanges();
Console.WriteLine("Created lens: {0}", lensModel);
}
else
{
Console.WriteLine("Existing lens: {0}", lensModel);
}
}
}
private static Manufacturer ProcessManufacturer(XElement manufacturer, PhotographySystemEntities context)
{
var manuName = manufacturer.Element("manufacturer-name").Value;
var manu = context.Manufacturers.FirstOrDefault(m => m.Name == manuName);
if (manu == null)
{
manu = new Manufacturer {Name = manuName};
context.Manufacturers.Add(manu);
context.SaveChanges();
Console.WriteLine("Created manufacturer: {0}", manuName);
}
else
{
Console.WriteLine("Existing manufacturer: {0}", manuName);
}
return manu;
}
private static void GenRndEquip(XmlSpec xmlSpec, PhotographySystemEntities context)
{
Random rnd = new Random();
for (int i = 0; i < xmlSpec.Count; i++)
{
var equipment = new Equipment();
var lenses = context.Lenses.Where(l => l.Manufacturer.Name == xmlSpec.ManuName).Select(l => l).ToList();
var cameras = context.Cameras.Where(c => c.Manufacturer.Name == xmlSpec.ManuName).Select(c => c).ToList();
equipment.Lens = lenses.ElementAt(rnd.Next(lenses.Count()));
equipment.Camera = cameras.ElementAt(rnd.Next(cameras.Count()));
context.Equipments.Add(equipment);
context.SaveChanges();
Console.WriteLine("Equipment added: {0} (Camera: {1} - Lens: {2})",
xmlSpec.ManuName,
equipment.Camera.Model,
equipment.Lens.Model);
}
}
