CHC.EF.Reverse.Poco 1.1.0

EF Core Reverse Engineering Tool

.NET 8.0 code generator for Entity Framework 6.0, creating POCO classes, configurations, and DbContext from existing databases.

Features

Database Schema Support

• Comprehensive schema reading for SQL Server and MySQL
• Advanced relationship mapping:
  • One-to-One with unique constraint detection
  • One-to-Many with collection navigation
  • Many-to-Many with junction table support
• Column property handling:
  • Custom data types and constraints
  • Computed columns and generated values
  • Collation and encoding settings
• Index and key management:
  • Composite primary/foreign keys
  • Unique and clustered indexes
  • Filtered indexes (SQL Server)

Code Generation

• Clean POCO entities with relationship navigation
• Fluent API configurations
• Documented DbContext
• XML documentation from schema comments

Configuration Options

• Multiple config sources (CLI, JSON files)
• Provider selection (SQL Server/MySQL)
• Output customization
• Pluralization options

Installation

dotnet tool install --global CHC.EF.Reverse.Poco

Required packages:

dotnet add package Microsoft.EntityFrameworkCore
dotnet add package Microsoft.EntityFrameworkCore.SqlServer # For SQL Server
dotnet add package MySql.EntityFrameworkCore # For MySQL

Usage

Initialize config:

efrev --init

Basic usage:

efrev -c "connection-string" -p "provider-name"

Options

-c, --connection        Connection string
-p, --provider         Provider (SqlServer/MySql)
-n, --namespace        Target namespace
-o, --output           Output directory
--pluralize            Pluralize collection names
--data-annotations     Use data annotations
--config              Custom config path
--settings            Settings file path
--init                Create config files

Configuration

appsettings.json:

{
  "CodeGenerator": {
    "ConnectionString": "Server=localhost;Database=YourDb;",
    "ProviderName": "Microsoft.Data.SqlClient",
    "Namespace": "YourApp.Data",
    "DbContextName": "AppDbContext",
    "UseDataAnnotations": true,
    "IncludeComments": true,
    "IsPluralize": true,
    "OutputDirectory": "./Generated"
  }
}

Output Examples

Entity:

public class Order
{
    public int Id { get; set; }
    public int CustomerId { get; set; }
    
    public virtual Customer Customer { get; set; }
    public virtual ICollection<OrderDetail> Details { get; set; }
}

Configuration:

modelBuilder.Entity<Order>(entity =>
{
    entity.ToTable("Orders");
    entity.HasKey(e => e.Id);
    
    entity.HasOne(e => e.Customer)
          .WithMany(e => e.Orders)
          .HasForeignKey(e => e.CustomerId);
});

License

MIT License