| public static RandomString ( int minLength, int maxLength = int.MaxValue/2 ) : string | ||
| minLength | int | |
| maxLength | int | |
| 리턴 | string | |
public static void ImportCategories(int count)
{
Console.WriteLine("ImportCategories");
var categoriesNames = new HashSet <string>();
do
{
categoriesNames.Add(RandomGenerator.RandomString(5, 20));
}while (categoriesNames.Count < count);
var data = new PetStoreEntities();
var counter = 0;
foreach (var category in categoriesNames)
{
var newcategory = new Category()
{
Name = category
};
data.Categories.Add(newcategory);
counter++;
if (counter % 100 == 0)
{
data.SaveChanges();
data.Dispose();
data = new PetStoreEntities();
Console.Write(".");
}
}
data.SaveChanges();
data.Dispose();
}
public static void ImportSpecies(int count)
{
Console.WriteLine("ImportSpecies");
var data = new PetStoreEntities();
var coutriesIds = data.Countries.Select(c => c.Id).ToList();
var countriesCount = coutriesIds.Count;
// generate 100 ids list
var countriesRandomCountryIds = new List <int>();
// add the unique 20
countriesRandomCountryIds.AddRange(coutriesIds);
// add the rest to count
for (int i = 0; i < count - countriesCount; i++)
{
var randomCountryIndex = RandomInstance.Next(0, countriesCount);
var randomId = coutriesIds[randomCountryIndex];
countriesRandomCountryIds.Add(randomId);
}
// randomize
var shuffledCountryIds = countriesRandomCountryIds.OrderBy(g => Guid.NewGuid()).ToList();
var speciesNames = new HashSet <string>();
do
{
speciesNames.Add(RandomGenerator.RandomString(5, 50));
}while (speciesNames.Count < count);
var counter = 0;
foreach (var specie in speciesNames)
{
var id = shuffledCountryIds[0];
shuffledCountryIds.RemoveAt(0);
var newSpecie = new Species()
{
Name = specie,
CountryId = id
};
data.Species.Add(newSpecie);
counter++;
if (counter % 100 == 0)
{
data.SaveChanges();
data.Dispose();
data = new PetStoreEntities();
Console.Write(".");
}
}
data.SaveChanges();
data.Dispose();
}
public static void ImportProducts(int count)
{
Console.WriteLine("ImportProducts");
var data = new PetStoreEntities();
var categoriesIds = data.Categories.Select(c => c.Id).ToList();
var categoriesCount = categoriesIds.Count;
// generate 20000 ids list
var categoriesRandomCountryIds = new List <int>();
// add the unique 50
categoriesRandomCountryIds.AddRange(categoriesIds);
// add the rest to count
for (int i = 0; i < count - categoriesCount; i++)
{
var randomCategoriesIndex = RandomInstance.Next(0, categoriesCount);
var randomId = categoriesIds[randomCategoriesIndex];
categoriesRandomCountryIds.Add(randomId);
}
// randomize
var shuffledCategoryIds = categoriesRandomCountryIds.OrderBy(g => Guid.NewGuid()).ToList();
var productsNames = new HashSet <string>();
do
{
productsNames.Add(RandomGenerator.RandomString(5, 25));
}while (productsNames.Count < count);
var counter = 0;
foreach (var product in productsNames)
{
var id = shuffledCategoryIds[0];
shuffledCategoryIds.RemoveAt(0);
var newProduct = new PetProduct()
{
Name = product,
CategoryId = id,
Price = (decimal)((RandomInstance.NextDouble() * (1000 - 10)) + 10)
};
data.PetProducts.Add(newProduct);
counter++;
// add species match here
var speciesCount = RandomInstance.Next(2, 11);
var speciesToAdd = new HashSet <Species>();
var species = data.Species.OrderBy(s => Guid.NewGuid()).Take(speciesCount).ToList();
while (speciesToAdd.Count != speciesCount)
{
var specieIdRandomIndex = RandomInstance.Next(0, species.Count);
var randomSpecie = species[specieIdRandomIndex];
speciesToAdd.Add(randomSpecie);
}
foreach (var specie in speciesToAdd)
{
newProduct.Species.Add(specie);
}
if (counter % 10 == 0)
{
data.SaveChanges();
data.Dispose();
data = new PetStoreEntities();
Console.Write(".");
}
}
data.SaveChanges();
data.Dispose();
}
public static void ImportPets(int count)
{
Console.WriteLine("ImportPets");
var data = new PetStoreEntities();
var speciesIds = data.Species.Select(c => c.Id).ToList();
var speciesCount = speciesIds.Count;
// generate 5000 ids list
var speciesRandomIds = new List <int>();
// add the unique
speciesRandomIds.AddRange(speciesIds);
// add the rest to count
for (int i = 0; i < count - speciesCount; i++)
{
var randomSpecieIndex = RandomInstance.Next(0, speciesCount);
var randomId = speciesIds[randomSpecieIndex];
speciesRandomIds.Add(randomId);
}
// randomize
var shuffledSpeciesIds = speciesRandomIds.OrderBy(g => Guid.NewGuid()).ToList();
var colorsId = data.Colors.Select(c => c.Id).ToList();
var colorsCount = colorsId.Count;
var counter = 0;
foreach (var specieId in shuffledSpeciesIds)
{
var randomPrice = (decimal)((RandomInstance.NextDouble() * (2500 - 5)) + 5);
var randomColorIndex = RandomInstance.Next(0, colorsCount);
var randomColorId = colorsId[randomColorIndex];
var randomDate = RandomGenerator.RandomDate(new DateTime(2010, 1, 1), DateTime.Now.AddDays(-60));
var randomBreed = RandomGenerator.RandomString(0, 30);
var newPet = new Pet()
{
SpecieId = specieId,
DateOfBirth = randomDate,
Price = randomPrice,
ColorId = randomColorId,
Breed = randomBreed
};
data.Pets.Add(newPet);
counter++;
if (counter % 100 == 0)
{
data.SaveChanges();
data.Dispose();
data = new PetStoreEntities();
Console.Write(".");
}
}
data.SaveChanges();
data.Dispose();
}