public async Task SeedAsync(LibraaryDbContext dbContext, IServiceProvider serviceProvider)
{
if (dbContext == null)
{
throw new ArgumentNullException(nameof(dbContext));
}
if (serviceProvider == null)
{
throw new ArgumentNullException(nameof(serviceProvider));
}
var logger = serviceProvider.GetService <ILoggerFactory>().CreateLogger(typeof(LibraaryDbContextSeeder));
var seeders = new List <ISeeder>
{
new RolesSeeder(),
new CategoriesSeeder(),
new UsersSeeder(),
new AuthorsSeeder(),
new PublishersSeeder()
};
foreach (var seeder in seeders)
{
await seeder.SeedAsync(dbContext, serviceProvider);
await dbContext.SaveChangesAsync();
logger.LogInformation($"Seeder {seeder.GetType().Name} done.");
}
}
private static async Task SeedCategoryAsync(LibraaryDbContext context, string[] categories)
{
foreach (var category in categories)
{
if (!context.Categories.Any(c => c.CategoryName == category))
{
await context.Categories.AddAsync(new Category()
{
CategoryName = category
});
}
}
await context.SaveChangesAsync();
}
private static async Task SeedCategoryAsync(LibraaryDbContext context, string[] publishers)
{
foreach (var publisher in publishers)
{
var urlAddress = publisher.Split('|')[1];
var name = publisher.Split('|')[0];
if (!context.Publishers.Any(p => p.Name == name))
{
await context.Publishers.AddAsync(new Publisher()
{
Name = name,
URLAddress = urlAddress
});
}
}
await context.SaveChangesAsync();
}
private static async Task SeedCategoryAsync(LibraaryDbContext context, string[] authors)
{
foreach (var author in authors)
{
var firstName = author.Split()[0];
var lastName = author.Split()[1];
var nationality = author.Split()[2];
if (!context.Authors.Any(a => a.FirstName == firstName && a.LastName == lastName))
{
await context.Authors.AddAsync(new Author()
{
FirstName = firstName,
LastName = lastName,
Nationality = nationality
});
}
}
await context.SaveChangesAsync();
}