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Rafael Almeida edited this page Aug 23, 2017
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//DataContext
public class BlogContext : DbContext
{
public DbSet<Blog> Blog { get; set; }
public DbSet<Post> Posts { get; set; }
protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
{
string connectionString = "...";
optionsBuilder.UseFirebirdSql(connectionString);
}
protected override void OnModelCreating(ModelBuilder modelo)
{
//Fluent Api
modelo.Entity<Blog>(entity =>
{
entity.HasIndex(e => e.BlogId)
.HasName("Id")
.IsUnique();
});
}
}
public class Blog
{
public int BlogId { get; set; }
public string Url { get; set; }
public List<Post> Posts { get; set; }
}
public class Post
{
public int PostId { get; set; }
public string Title { get; set; }
public string Content { get; set; }
public int BlogId { get; set; }
public Blog Blog { get; set; }
}
}
//Sample Use
var cx = new BlogContext();
//one
cx.Blog.Add(new Blog
{
Url = "https://github.com/ralmsdeveloper/EntityFrameworkCore.FirebirdSQL"
});
cx.SaveChanges();
//Range
var RangeBlog = new List<Blog>
{
new Blog{ Url="https://github.com/ralmsdeveloper/EntityFrameworkCore.FirebirdSQL" },
new Blog{ Url="https://github.com/ralmsdeveloper/" },
new Blog{ Url="https://blog.ralms.net" },
new Blog{ Url="https://ralms.net" }
};
cx.Blog.AddRange(RangeBlog);
cx.SaveChanges();
//Sample Use
var cx = new BlogContext();
var blog = cx.Blog.Find(1);
cx.Attach(registro);
blog.Url = "www.ralms.net";
cx.SaveChanges();
//Sample Use
var cx = new BlogContext();
var blog = cx.Blog.Find(1);
cx.Delete(blog);
cx.SaveChanges();
//Sample Use
var cx = new BlogContext();
var blog = cx.Blog.Where(p => p.BlogId == 1).ToList();