🦄 FreeSql

FreeSql 是一款功能强大的对象关系映射(O/RM)组件,支持 .NET Core 2.1+、.NET Framework 4.0+ 以及 Xamarin。 [![Member project of .NET Core Community](https://img.shields.io/badge/member%20project%20of-NCC-9e20c9.svg)](https://github.com/dotnetcore) [![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) [![GitHub license](https://img.shields.io/badge/license-MIT-blue.svg)](https://raw.githubusercontent.com/2881099/FreeSql/master/LICENSE.txt)

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- 🛠 支持 CodeFirst 模式,即便使用 Access 数据库也支持数据迁移; - 💻 支持 DbFirst 模式,支持从数据库导入实体类,或使用[实体类生成工具](https://github.com/2881099/FreeSql/wiki/DbFirst)生成实体类; - ⛳ 支持 深入的类型映射,比如 PgSql 的数组类型等; - ✒ 支持 丰富的表达式函数,以及灵活的自定义解析; - 🏁 支持 导航属性一对多、多对多贪婪加载,以及延时加载; - 📃 支持 读写分离、分表分库、过滤器、乐观锁、悲观锁; - 🌳 支持 MySql/SqlServer/PostgreSQL/Oracle/Sqlite/Firebird/达梦/人大金仓/神舟通用/翰高/华为GaussDB/Access 等数据库; QQ群:4336577(已满)、8578575(在线)、52508226(在线) ## 📚 文档 | | | | - | - | | | [《新人学习指引》](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) | | | [《表达式函数》](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) \| [《过滤器》](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) \| [《DbContext》](https://github.com/2881099/FreeSql/wiki/DbContext) \| [《ADO》](https://github.com/2881099/FreeSql/wiki/ADO) \| [《AOP》](https://github.com/2881099/FreeSql/wiki/AOP) | | | [《读写分离》](https://github.com/2881099/FreeSql/wiki/%e8%af%bb%e5%86%99%e5%88%86%e7%a6%bb) \| [《分表分库》](https://github.com/2881099/FreeSql/wiki/%e5%88%86%e8%a1%a8%e5%88%86%e5%ba%93) \| [《黑科技》](https://github.com/2881099/FreeSql/wiki/%E9%AA%9A%E6%93%8D%E4%BD%9C) \| [《常见问题》](https://github.com/dotnetcore/FreeSql/wiki/%E5%B8%B8%E8%A7%81%E9%97%AE%E9%A2%98) \| [*更新日志*](https://github.com/2881099/FreeSql/wiki/%e6%9b%b4%e6%96%b0%e6%97%a5%e5%bf%97) | > FreeSql 提供多种使用习惯,请根据实际情况选择团队合适的一种: - 要么 FreeSql,原始用法; - 要么 [FreeSql.Repository](https://github.com/2881099/FreeSql/wiki/Repository),仓储+工作单元习惯; - 要么 [FreeSql.DbContext](https://github.com/2881099/FreeSql/wiki/DbContext),有点像 EFCore 的使用习惯; - 要么 [FreeSql.BaseEntity](https://github.com/2881099/FreeSql/tree/master/Examples/base_entity),求简单使用这个; > 示范项目 - [zhontai.net Admin 后台管理系统](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 企业应用管理系统](https://github.com/alonsoalon/TenantSite.Server) - [EasyCms 企业建站,事业单位使用的CMS管理系统](https://github.com/jasonyush/EasyCMS) - [内容管理系统](https://github.com/hejiyong/fscms)

## 🚀 快速入门 > dotnet add package FreeSql.Provider.Sqlite ```csharp static IFreeSql fsql = new FreeSql.FreeSqlBuilder() .UseConnectionString(FreeSql.DataType.Sqlite, @"Data Source=document.db") .UseAutoSyncStructure(true) //自动同步实体结构到数据库 .Build(); //请务必定义成 Singleton 单例模式 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 (查询) ```csharp //OneToOne、ManyToOne fsql.Select().Where(a => a.Parent.Parent.Name == "粤语").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 == "国语")) .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() ``` [更多信息](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(); ``` [更多信息](https://github.com/2881099/FreeSql/wiki/%e8%a1%a8%e8%be%be%e5%bc%8f%e5%87%bd%e6%95%b0) ### 🚁 Repository (仓储) > 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); } ``` 参考:[在 ASP.NET Core 中使用 `TransactionalAttribute` + `UnitOfWorkManager` 实现多种事务传播](https://github.com/dotnetcore/FreeSql/issues/289) ## 💪 Performance (性能) FreeSql Query 与 Dapper Query 的对比: ```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 与 Dapper Query 的对比: ```shell Elapsed: 00:00:00.6707125; ToList Entity Counts: 131072; ORM: FreeSql* Elapsed: 00:00:00.6495301; Query Entity Counts: 131072; ORM: Dapper ``` [更多信息](https://github.com/2881099/FreeSql/wiki/%e6%80%a7%e8%83%bd) ## 👯 Contributors (贡献者) 以及其他为本项目提出重要建议的朋友们,他们包括: [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) 等。 ## 💕 Donation (捐赠) 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、无名 100元、陳怼怼 66.66元、陳怼怼 66.66元、丁淮 100元、李伟坚-Excel催化剂 100元、白狐 6.66元、她微笑的脸y 30元、Eternity²º²¹ 588元、夜归柴门 88元、蔡易喋 666.66元、 *礼 10元 > 超级感谢你的打赏。 - [Alipay](https://www.cnblogs.com/FreeSql/gallery/image/338860.html) - [WeChat](https://www.cnblogs.com/FreeSql/gallery/image/338859.html) ## 🗄 License (许可证) [MIT](LICENSE)