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);
}
}
}
static void Main()
{
var context = new PhotographySystemEntities();
var doc = XDocument.Load("../../imports.xml");
var manufacturers = doc.XPathSelectElements("/manufacturers-and-lenses/manufacturer");
int process = 1;
foreach (var manufacturer in manufacturers)
{
Console.WriteLine("Processing manufacturer #{0} ...", process);
Manufacturer manu = ProcessManufacturer(manufacturer, context);
var lenses = manufacturer.XPathSelectElements("lenses/lens");
ProcessLenses(lenses, manu, context);
Console.WriteLine();
}
}
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);
}
}
static void Main()
{
var context = new PhotographySystemEntities();
var photos = context.Photographs
.Select(p => new
{
title = p.Title,
category = p.Category.Name,
link = p.Link,
cameraManu = p.Equipment.Camera.Manufacturer.Name,
cameraModel = p.Equipment.Camera.Model,
cameraPxs = p.Equipment.Camera.Megapixels,
lensManu = p.Equipment.Lens.Manufacturer.Name,
lensModel = p.Equipment.Lens.Model,
lensPrice = p.Equipment.Lens.Price
}).OrderBy(p => p.title)
.ToList();
var root = new XElement("photographs");
foreach (var ph in photos)
{
var xPhoto = new XElement("photograph");
xPhoto.Add(new XAttribute("title", ph.title));
xPhoto.Add(new XElement("category", ph.category));
xPhoto.Add(new XElement("link", ph.link));
var xEquip = new XElement("equipment");
xEquip.Add(new XElement("camera", ph.cameraManu + " " + ph.cameraModel, new XAttribute("megapixels", ph.cameraPxs)));
var lens = new XElement("lens", ph.lensManu + " " + ph.lensModel);
if (ph.lensPrice != null)
{
lens.Add(new XAttribute("price", ph.lensPrice));
}
xEquip.Add(lens);
xPhoto.Add(xEquip);
root.Add(xPhoto);
}
var doc = new XDocument();
doc.Add(root);
doc.Save("../../photographs.xml");
}
public static void Main()
{
var context = new PhotographySystemEntities();
var listManufacModel = context.Manufacturers
.Include(m => m.Cameras)
.Select(m => new
{
manu = m.Name,
cam = m.Cameras.Select(c => c.Model).OrderBy(c => c)
})
.OrderBy(mc => mc.manu)
.ToList();
foreach (var mc in listManufacModel)
{
foreach (var model in mc.cam)
{
Console.WriteLine("{0} {1}", mc.manu, model );
}
}
}
static void Main()
{
var context = new PhotographySystemEntities();
var doc = XDocument.Load("../../generate-equipment.xml");
var generates = doc.XPathSelectElements("/generate-random-equipments/generate");
int process = 1;
foreach (var generate in generates)
{
Console.WriteLine("Processing manufacturer #{0} ...", process);
var xmlSpec = new XmlSpec();
if (generate.Element("manufacturer") != null)
{
xmlSpec.ManuName = generate.Element("manufacturer").Value;
}
if (generate.Attribute("generate-count") != null)
{
xmlSpec.Count = int.Parse(generate.Attribute("generate-count").Value);
}
GenRndEquip(xmlSpec, context);
Console.WriteLine();
}
}
static void Main()
{
var context = new PhotographySystemEntities();
var manuAndCams = context.Manufacturers
.Include(m => m.Cameras)
.Select(m => new
{
manufacturer = m.Name,
cameras = m.Cameras.Select(c => new
{
model = c.Model,
price = c.Price
}).OrderBy(c => c.model)
})
.OrderBy(m => m.manufacturer)
.ToList();
var serializer = new JavaScriptSerializer();
var json = serializer.Serialize(manuAndCams);
File.WriteAllText("../../manufactureres-and-cameras.json", json);
}
