Sequelize Top

Sequelize Top is a C# library that provides an ORM (Object-Relational Mapping) for connecting and interacting with SQL databases. It allows developers to work with databases using simple and intuitive object-oriented programming techniques.

Key Features

1. Database Agnostic: Sequelize Top supports multiple SQL databases such as MySQL, PostgreSQL, SQLite, and Microsoft SQL Server. It allows you to easily switch between different databases without changing your code.

2. Model-Driven: Sequelize Top follows the Model-View-Controller (MVC) design pattern. It provides a powerful modeling framework that allows you to define your database schema using C# classes. These classes represent database tables, and their properties represent table columns.

   public class User
   {
       public int Id { get; set; }
       public string Name { get; set; }
       public int Age { get; set; }
   }
   

3. Querying Database: Sequelize Top provides a fluent and expressive API for querying and manipulating data. You can easily fetch records from the database based on various criteria, perform joins, aggregate data, and more.

   var users = await dbContext.Users
       .Where(u => u.Age >= 18 && u.Age <= 30)
       .OrderBy(u => u.Name)
       .ToListAsync();
   
   var count = await dbContext.Users.CountAsync();
   

4. Data Validation: Sequelize Top includes built-in data validation mechanisms. You can define validation rules for your model properties, ensuring that only valid data is stored in the database.

   public class User
   {
       public int Id { get; set; }
   
       [Required]
       public string Name { get; set; }
   
       [Range(18, 99)]
       public int Age { get; set; }
   }
   

5. Database Migrations: Sequelize Top supports database migrations, allowing you to manage changes in your database schema over time. You can easily create or modify tables, add or remove columns, and perform other database schema changes using migration scripts.

   public partial class CreateUserTable : Migration
   {
       protected override void Up(MigrationBuilder migrationBuilder)
       {
           migrationBuilder.CreateTable(
               name: "Users",
               columns: table => new
               {
                   Id = table.Column<int>(nullable: false),
                   Name = table.Column<string>(nullable: false),
                   Age = table.Column<int>(nullable: false)
               },
               constraints: table =>
               {
                   table.PrimaryKey("PK_Users", x => x.Id);
               });
       }
   }
   

Getting Started

To start using Sequelize Top in your C# project, you need to follow these steps:

1. Install the Sequelize Top NuGet package in your project.

   dotnet add package Sequelize.Top
   

2. Create a DbContext class, which represents your database connection and provides access to your model classes.

   public class MyDbContext : DbContext
   {
       public DbSet<User> Users { get; set; }
   
       protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
       {
           optionsBuilder.UseSqlServer("YourConnectionString");
       }
   }
   

3. Define your model classes, representing the database tables.

4. Start querying and manipulating data using Sequelize Top's fluent API.

   using (var dbContext = new MyDbContext())
   {
       var users = await dbContext.Users
           .Where(u => u.Age >= 18 && u.Age <= 30)
           .OrderBy(u => u.Name)
           .ToListAsync();
   
       // Perform operations on retrieved data
   }
   

For more information and detailed documentation, refer to the official Sequelize Top website: https://sequelize.org/top

Conclusion

Sequelize Top is a powerful and flexible ORM library for C# developers. It simplifies the process of working with SQL databases, allowing you to focus on your application logic rather than dealing with low-level database operations. Give Sequelize Top a try and experience the productivity and convenience it brings to your C# projects!