🦄 FreeSql

FreeSql is a powerful O/RM component, supports .NET Core 2.1+, .NET Framework 4.0+, and Xamarin. [![nuget](https://img.shields.io/nuget/v/FreeSql.svg?style=flat-square)](https://www.nuget.org/packages/FreeSql) [![stats](https://img.shields.io/nuget/dt/FreeSql.svg?style=flat-square)](https://www.nuget.org/stats/packages/FreeSql?groupby=Version) [![Member project of .NET Core Community](https://img.shields.io/badge/member%20project%20of-NCC-9e20c9.svg)](https://github.com/dotnetcore) [![GitHub license](https://img.shields.io/badge/license-MIT-blue.svg)](https://raw.githubusercontent.com/2881099/FreeSql/master/LICENSE.txt)

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- 🛠 Support CodeFirst mode, support data migration even when using Access database. - 💻 Support DbFirst mode, support import entity class from database, or use [Entity Class Generation Tool](https://github.com/2881099/FreeSql/wiki/DbFirst) to generate entity class. - ⛳ Support advanced type mapping, such as PgSql array type, etc. - ✒ Support large number of expression functions, and highly customizable analysis. - 🏁 Support Support one-to-many and many-to-many greedy loading of navigation properties, and lazy loading. - 📃 Support Read/Write separation, Splitting Table/Database, Filters, Optimistic Locking and pessimistic locking. - 🌳 Support MySql/SqlServer/PostgreSQL/Oracle/Sqlite/Firebird/达梦/人大金仓/神舟通用/翰高/Access, etc. QQ Groups：4336577(full)、**8578575(available)**、**52508226(available)** ## 📚 Documentation | | | | - | - | | | [Introduction](https://www.cnblogs.com/FreeSql/p/11531300.html) \| [Select](https://github.com/2881099/FreeSql/wiki/%e6%9f%a5%e8%af%a2) \| [Update](https://github.com/2881099/FreeSql/wiki/%e4%bf%ae%e6%94%b9) \| [Insert](https://github.com/2881099/FreeSql/wiki/%e6%b7%bb%e5%8a%a0) \| [Delete](https://github.com/2881099/FreeSql/wiki/%e5%88%a0%e9%99%a4) | | | [Expression Functions](https://github.com/2881099/FreeSql/wiki/%e8%a1%a8%e8%be%be%e5%bc%8f%e5%87%bd%e6%95%b0) \| [CodeFirst](https://github.com/2881099/FreeSql/wiki/CodeFirst) \| [DbFirst](https://github.com/2881099/FreeSql/wiki/DbFirst) \| [Filters](https://github.com/2881099/FreeSql/wiki/%e8%bf%87%e6%bb%a4%e5%99%a8) | | | [Repository](https://github.com/2881099/FreeSql/wiki/Repository) \| [UnitOfWork](https://github.com/2881099/FreeSql/wiki/%e5%b7%a5%e4%bd%9c%e5%8d%95%e5%85%83) \| [AOP](https://github.com/2881099/FreeSql/wiki/AOP) \| [DbContext](https://github.com/2881099/FreeSql/wiki/DbContext) | | | [Read/Write Separation](https://github.com/2881099/FreeSql/wiki/%e8%af%bb%e5%86%99%e5%88%86%e7%a6%bb) \| [Splitting Table/Database](https://github.com/2881099/FreeSql/wiki/%e5%88%86%e8%a1%a8%e5%88%86%e5%ba%93) \| [Mysterious Technology](https://github.com/2881099/FreeSql/wiki/%E9%AA%9A%E6%93%8D%E4%BD%9C) \| [FAQ](https://github.com/dotnetcore/FreeSql/wiki/%E5%B8%B8%E8%A7%81%E9%97%AE%E9%A2%98) \| [*Update Notes*](https://github.com/2881099/FreeSql/wiki/%e6%9b%b4%e6%96%b0%e6%97%a5%e5%bf%97) | > FreeSql provides a variety of usage habits, and there is always one that suits you: - Use FreeSql, keep the original usage. - Use [FreeSql.Repository](https://github.com/2881099/FreeSql/wiki/Repository), for those who are accustomed to storage models and work units. - Use [FreeSql.DbContext](https://github.com/2881099/FreeSql/wiki/DbContext), a bit like how efcore is used. - Or use [FreeSql.BaseEntity](https://github.com/2881099/FreeSql/tree/master/Examples/base_entity), which is extremely simple. > Some open source projects that use FreeSql: - [Zhontai.net Admin, Management System](https://github.com/zhontai/Admin.Core) - [A simple and practical CMS implemented by .NET Core](https://github.com/luoyunchong/lin-cms-dotnetcore) - [iusaas.com SaaS, Enterprise Application Management System](https://github.com/alonsoalon/TenantSite.Server) - [EasyCms, CMS management system used by enterprises and institutions](https://github.com/jasonyush/EasyCMS) - [Content management system](https://github.com/hejiyong/fscms)

## 🚀 Quick start > dotnet add package FreeSql.Provider.Sqlite ```csharp 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 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 Songs { get; set; } public ICollection Tags { get; set; } } ``` ### 🔎 Query ```csharp //OneToOne、ManyToOne fsql.Select().Where(a => a.Parent.Parent.Name == "English").ToList(); //OneToMany fsql.Select().IncludeMany(a => a.Tags, then => then.Where(sub => sub.Name == "foo")).ToList(); //ManyToMany fsql.Select() .IncludeMany(a => a.Tags, then => then.Where(sub => sub.Name == "foo")) .Where(s => s.Tags.AsSelect().Any(t => t.Name == "Chinese")) .ToList(); //Other fsql.Select() .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.AsSelect().Any(t => t.Parent.Id == t.UserId)) .Count(out var total) .Page(page, size) .OrderByDescending(a => a.Id) .ToList() ``` [More..](https://github.com/2881099/FreeSql/wiki/%e6%9f%a5%e8%af%a2) ```csharp fsql.Select().Where(a => new[] { 1, 2, 3 }.Contains(a.Id)).ToList(); fsql.Select().Where(a => a.CreateTime.Date == DateTime.Today).ToList(); fsql.Select().OrderBy(a => Guid.NewGuid()).Limit(10).ToList(); ``` [More..](https://github.com/2881099/FreeSql/wiki/%e8%a1%a8%e8%be%be%e5%bc%8f%e5%87%bd%e6%95%b0) ### 🚁 Repository > dotnet add package FreeSql.Repository ```csharp [Transactional] public void Add() { var repo = ioc.GetService>(); repo.DbContextOptions.EnableAddOrUpdateNavigateList = 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*](https://github.com/dotnetcore/FreeSql/issues/289). ## 💪 Performance FreeSql Query & Dapper Query ```shell 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 Counts: 131072; ORM: FreeSql* Elapsed: 00:00:01.0236285; Query Dynamic Counts: 131072; ORM: FreeSql* ``` FreeSql ToList & Dapper Query ```shell Elapsed: 00:00:00.6707125; ToList Entity Counts: 131072; ORM: FreeSql* Elapsed: 00:00:00.6495301; Query Entity Counts: 131072; ORM: Dapper ``` [More..](https://github.com/2881099/FreeSql/wiki/%e6%80%a7%e8%83%bd) ## 👯 Contributors And other friends who made important suggestions for this project, they include: [systemhejiyong](https://github.com/systemhejiyong), [LambertW](https://github.com/LambertW), [mypeng1985](https://github.com/mypeng1985), [stulzq](https://github.com/stulzq), [movingsam](https://github.com/movingsam), [ALer-R](https://github.com/ALer-R), [zouql](https://github.com/zouql), 深圳|凉茶, [densen2014](https://github.com/densen2014), [LiaoLiaoWuJu](https://github.com/LiaoLiaoWuJu), [hd2y](https://github.com/hd2y), [tky753](https://github.com/tky753), [feijie999](https://github.com/feijie999), constantine, [JohnZhou2020](https://github.com/JohnZhou2020), [mafeng8](https://github.com/mafeng8), etc. ## 💕 Donation L*y 58元、花花 88元、麦兜很乖 50元、网络来者 2000元、John 99.99元、alex 666元、bacongao 36元、无名 100元、Eternity 188元、无名 10元、⌒.Helper~..oO 66元、习惯与被习惯 100元、无名 100元、蔡易喋 88.88元、中讯科技 1000元、Good Good Work 24元、炽焰 6.6元、Nothing 100元、兰州天擎赵 500元、哈利路亚 300元、 无名 100元、蛰伏 99.99元、TCYM 66.66元、MOTA 5元、LDZXG 30元、Near 30元、建爽 66元、无名 200元、LambertWu 100元、无名 18.88元、乌龙 50元 > Thank you for your donation - [Alipay](https://www.cnblogs.com/FreeSql/gallery/image/338860.html) - [WeChat](https://www.cnblogs.com/FreeSql/gallery/image/338859.html) ## 🗄 License [MIT](LICENSE)