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https://github.com/CollaboratingPlatypus/PetaPoco

Official PetaPoco, A tiny ORM-ish thing for your POCO's
https://github.com/CollaboratingPlatypus/PetaPoco

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Official PetaPoco, A tiny ORM-ish thing for your POCO's

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README 

        
PetaPoco Logo



# Welcome to the official PetaPoco repository



Originally the brainchild of [Brad Robinson].



PetaPoco is maintained and extended by Wade Baglin (@pleb) and Aaron Sherber (@asherber).



## Version 6 - Netstandard 2.0+, 4.0, 4.5+



Read more about the [v6 update](https://github.com/CollaboratingPlatypus/PetaPoco/wiki/V6NetStandard2-0)



PetaPoco is available from: **NuGet [PetaPoco.Compiled](https://www.nuget.org/packages/PetaPoco.Compiled)**



|Master|Development|Nuget|

|:-----|:----------|:----|

|[![Build status](https://ci.appveyor.com/api/projects/status/1vodaox1reremsvj/branch/master?svg=true)](https://ci.appveyor.com/project/collaboratingplatypus/petapoco/branch/master)|[![Build status](https://ci.appveyor.com/api/projects/status/1vodaox1reremsvj/branch/development?svg=true)](https://ci.appveyor.com/project/collaboratingplatypus/petapoco/branch/development)|[![Nuget Downloads](https://buildstats.info/nuget/PetaPoco.Compiled)](https://www.nuget.org/packages/PetaPoco.Compiled/)|



### Documentation



For configuration documentation, code examples, and other general usage information, [see the docs].



### Add-ons



* [PetaPoco.SqlKata](https://github.com/asherber/PetaPoco.SqlKata) lets you use the powerful query builder [SqlKata](https://sqlkata.com) to [build SQL queries](https://github.com/CollaboratingPlatypus/PetaPoco/wiki/Building-SQL-Queries) for PetaPoco.

* [StaTypPocoQueries.PetaPoco](https://github.com/asherber/StaTypPocoQueries.PetaPoco) provides the ability to use some simple, strongly typed, Intellisensed LINQ expressions in your queries.

* [PetaPoco.DBEntityGenerator](https://github.com/hippasus/PetaPoco.DBEntityGenerator) lets you generate Pocos from your DB (T4 template replacement).



## Version 5 - Legacy



|Nuget (Single file)|Nuget Core (+t4 templates)|Nuget Core Compiled (dll)|

|:----|:---------|:------------------|

|[![Nuget Downloads](https://buildstats.info/nuget/PetaPoco)](https://www.nuget.org/packages/PetaPoco/)|[![Nuget Downloads core](https://buildstats.info/nuget/PetaPoco.Core)](https://www.nuget.org/packages/PetaPoco.Core)|[![Nuget Downloads core](https://buildstats.info/nuget/PetaPoco.Core.Compiled)](https://www.nuget.org/packages/PetaPoco.Core.Compiled)|



---



## PetaPoco is a tiny & fast micro-ORM for .NET



* Like [Dapper], it's fast because it uses dynamic method generation (MSIL) to assign column values to properties

* Like [Massive], it now also supports dynamic Expandos too

* Like [ActiveRecord], it supports a close relationship between object and database table

* Like [SubSonic], it supports generation of poco classes with T4 templates (V5 only)

* Like [Massive], it's available as a single file that you easily add to any project or complied. (V5 only)



## Features at a Glance



* Tiny, and absolutely no dependencies!

* Asychronous (aka async) or synchronous: the choice is yours. (V6)

* Works with strictly undecorated POCOs, or attributed almost-POCOs.

* Easy to configure, including [fluent configuration] out of the box.

* Helper methods for Insert/Delete/Update/Save and IsNew

* Paged requests automatically work out the total record count and fetch a specific page.

* Easy transaction support.

* Better parameter replacement support, including grabbing named parameters from object properties.

* Great performance by eliminating Linq and fast property assignment with DynamicMethod generation.

* The query language is good'ole SQL.

* Includes a low friction SQL builder class that makes writing inline SQL *much* easier.

* Includes T4 templates to automatically generate POCO classes for you. (V5)

* Hooks for logging exceptions, installing value converters and mapping columns to properties without attributes.

* Works with SQL Server, SQL Server CE, MS Access, SQLite, MySQL, MariaDB, Firebird, and PostgreSQL. (Oracle is supported but does not have integration tests).

* Works under Net Standard 2.0, .NET 4.0/4.5+ or Mono 2.8 and later.

* Has [Xunit] unit tests.

* Has supported DBs integration tests.

* OpenSource (MIT License or Apache 2.0)



## Super easy use and configuration



Save an entity

```c#

db.Save(article);

db.Save(new Article { Title = "Super easy to use PetaPoco" });

db.Save("Articles", "Id", { Title = "Super easy to use PetaPoco", Id = Guid.New() });

```



Get an entity

```c#

var article = db.Single(123);

var article = db.Single("WHERE ArticleKey = @0", "ART-123");

```



Delete an entity

```c#

db.Delete(article);

db.Delete(123);

db.Delete("Articles", "Id", 123);

db.Delete("Articles", "ArticleKey", "ART-123");

```



Plus much, much [more](https://github.com/CollaboratingPlatypus/PetaPoco/wiki).



## Contributing



PetaPoco welcomes input from the community. After all, what is a product without users? If you would like to contribute, please take the time to read [the contribution guide]. We would also suggest you have a quick read of [Contributing to Open Source on GitHub].



## Contributions Honour Roll



PetaPoco is not the result of just one person's labour, but rather, the product of a combined effort by many. For those individuals who go above and beyond, [we have a special place to honour them].



[Brad Robinson]:https://www.toptensoftware.com/

[Massive]:https://github.com/FransBouma/Massive

[Dapper]:https://github.com/StackExchange/dapper-dot-net

[SubSonic]:https://subsonic.github.io/

[ActiveRecord]:https://guides.rubyonrails.org/active_record_basics.html

[POCO]:https://en.wikipedia.org/wiki/Plain_Old_CLR_Object

[CodingHorror]:https://web.archive.org/web/20160215051631/subsonicproject.com/docs/CodingHorror

[XUnit]:https://github.com/xunit/xunit

[see the docs]:https://github.com/CollaboratingPlatypus/PetaPoco/wiki

[the contribution guide]:./contributing.md

[Contributing to Open Source on GitHub]:https://guides.github.com/activities/contributing-to-open-source/

[we have a special place to honour them]:./honourRoll.md

[fluent configuration]:https://github.com/CollaboratingPlatypus/PetaPoco/wiki/Fluent-Configuration