FreeSql

.NET aot orm, VB.NET/C# orm, Mysql/PostgreSQL/SqlServer/Oracle orm, Sqlite/Firebird/Clickhouse/DuckDB orm, 达梦/金仓/虚谷/翰高/高斯 orm, 神通 orm, 南大通用 orm, 国产 orm, TDengine orm, QuestDB orm, MsAccess orm.

Description

FreeSql, is the ORM in .NET Core, .NET Framework and Xamarin. It supports MySQL, PostgreSQL, SqlServer, Oracle, Sqlite, Odbc, 达梦, And MsAccess.

Programming language: C#

License: MIT License

Tags: Linq     ORM     Database     SqlServer     MySQL     SQLite     PostgreSQL    

Latest version: v2.0.105

README

🦄 FreeSql

FreeSql is a powerful O/RM component, supports .NET Core 2.1+, .NET Framework 4.0+, and Xamarin.

English |
中文

• 🛠 Support CodeFirst data migration.
• 💻 Support DbFirst import entity class from database, or use Generation Tool.
• ⛳ Support advanced type mapping, such as PostgreSQL array type, etc.
• 🌲 Support expression functions, and customizable analysis.
• 🏁 Support one-to-many and many-to-many navigation properties, include and lazy loading.
• 📃 Support Read/Write separation, Splitting Table/Database, Global filters, Optimistic and pessimistic locker.
• 🌳 Support MySql/SqlServer/PostgreSQL/Oracle/Sqlite/Firebird/达梦/人大金仓/神舟通用/南大通用/翰高/ClickHouse/MsAccess, etc.

QQ Groups：4336577(full)、8578575(full)、52508226(available)

📚 Documentation

Get started  \
Expression  \
Repository  \
Read/Write  \

Please select a development mode:

• Use FreeSql, keep the original usage.
• Use FreeSql.Repository, Repository + UnitOfWork.
• Use FreeSql.DbContext, Like efcore.
• Use FreeSql.BaseEntity, Simple mode.

Some open source projects that use FreeSql:

• Zhontai.net Management System
• A simple CMS implemented by .NET5

🚀 Quick start

dotnet add package FreeSql.Provider.Sqlite

static IFreeSql fsql = new FreeSql.FreeSqlBuilder()
  .UseConnectionString(FreeSql.DataType.Sqlite, @"Data Source=document.db")
  .UseAutoSyncStructure(true) //automatically synchronize the entity structure to the database
  .Build(); //be sure to define as singleton mode

class Song {
  [Column(IsIdentity = true)]
  public int Id { get; set; }
  public string Title { get; set; }
  public string Url { get; set; }
  public DateTime CreateTime { get; set; }

  public ICollection<Tag> Tags { get; set; }
}
class Song_tag {
  public int Song_id { get; set; }
  public Song Song { get; set; }

  public int Tag_id { get; set; }
  public Tag Tag { get; set; }
}
class Tag {
  [Column(IsIdentity = true)]
  public int Id { get; set; }
  public string Name { get; set; }

  public int? Parent_id { get; set; }
  public Tag Parent { get; set; }

  public ICollection<Song> Songs { get; set; }
  public ICollection<Tag> Tags { get; set; }
}

🔎 Query

//OneToOne、ManyToOne
fsql.Select<Tag>().Where(a => a.Parent.Parent.Name == "English").ToList();

//OneToMany
fsql.Select<Tag>().IncludeMany(a => a.Tags, then => then.Where(sub => sub.Name == "foo")).ToList();

//ManyToMany
fsql.Select<Song>()
  .IncludeMany(a => a.Tags, then => then.Where(sub => sub.Name == "foo"))
  .Where(s => s.Tags.Any(t => t.Name == "Chinese"))
  .ToList();

//Other
fsql.Select<YourType>()
  .Where(a => a.IsDelete == 0)
  .WhereIf(keyword != null, a => a.UserName.Contains(keyword))
  .WhereIf(role_id > 0, a => a.RoleId == role_id)
  .Where(a => a.Nodes.Any(t => t.Parent.Id == t.UserId))
  .Count(out var total)
  .Page(page, size)
  .OrderByDescending(a => a.Id)
  .ToList()

More..

fsql.Select<Song>().Where(a => new[] { 1, 2, 3 }.Contains(a.Id)).ToList();

fsql.Select<Song>().Where(a => a.CreateTime.Date == DateTime.Today).ToList();

fsql.Select<Song>().OrderBy(a => Guid.NewGuid()).Limit(10).ToList();

fsql.Select<Song>().ToList(a => new
{
    a.Id,
    Tags = fsql.Select<Tag>().ToList(),
    SongTags = fsql.Select<SongTag>().Where(b => b.TopicId == a.Id).ToList()
});

More..

🚁 Repository

dotnet add package FreeSql.Repository

[Transactional]
public void Add() {
  var repo = ioc.GetService<BaseRepository<Tag>>();
  repo.DbContextOptions.EnableCascadeSave = true;

  var item = new Tag {
    Name = "testaddsublist",
    Tags = new[] {
      new Tag { Name = "sub1" },
      new Tag { Name = "sub2" }
    }
  };
  repo.Insert(item);
}

Reference: Use TransactionalAttribute and UnitOfWorkManager in ASP.NET Core to Achieve the Multiple Transaction Propagation.

💪 Performance

FreeSql Query & Dapper Query

Elapsed: 00:00:00.6733199; Query Entity Counts: 131072; ORM: Dapper

Elapsed: 00:00:00.4554230; Query Tuple Counts: 131072; ORM: Dapper

Elapsed: 00:00:00.6846146; Query Dynamic Counts: 131072; ORM: Dapper

Elapsed: 00:00:00.6818111; Query Entity Counts: 131072; ORM: FreeSql*

Elapsed: 00:00:00.6060042; Query Tuple Counts: 131072; ORM: FreeSql*

Elapsed: 00:00:00.4211323; Query ToList<Tuple> Counts: 131072; ORM: FreeSql*

Elapsed: 00:00:01.0236285; Query Dynamic Counts: 131072; ORM: FreeSql*

FreeSql ToList & Dapper Query

Elapsed: 00:00:00.6707125; ToList Entity Counts: 131072; ORM: FreeSql*

Elapsed: 00:00:00.6495301; Query Entity Counts: 131072; ORM: Dapper

More..

👯 Contributors

And other friends who made important suggestions for this project, they include:

systemhejiyong, LambertW, mypeng1985, stulzq, movingsam, ALer-R, zouql, 深圳|凉茶, densen2014, LiaoLiaoWuJu, hd2y, tky753, feijie999, constantine, JohnZhou2020, mafeng8, VicBilibily, Soar, quzhen91 etc.

💕 Donation

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🗄 License

[MIT](LICENSE)