andystewart / dynamo

Dynamic ORM

Dynamo - Dynamic C# ORM

Dynamo is a object relational mapper developed using the c# and .net 4.0 dynamic features and inspired by the feature set of Activerecord for Ruby on Rails.

Aim

To create a simple to use code focused ORM that is developed for c# first and can scale from small to large scale solutions.

Examples

Mapping a class to a table, magically adds all columns in the table as properties in the class.

// Db Table: Contact
// int Id - Primary Key
// nvarchar(255) FirstName
// nvarchar(255) Surname

public class Contact : Entity
{
}

Creating a new Contact Record

var session = new Session("ConnectionStringHere");
dynamic contact = new Contact();
contact.FirstName = "Andy";
contact.Surname = "Stewart";
session.Save(contact);

Associations to other classes

public class Contact : Entity
{
	public Contact()
	{
		BelongsTo<Company>();
		HasMany<PhoneNumber>();
	}
}

Returning Objects By Id

var session = new Session("ConnectionStringHere");
session.GetById<Contact>(1);

Querying the database

var session = new Session("ConnectionStringHere");
session.Find<Contact>().Where(new { FirstName="Andy" }).OrderBy("FirstName").ToList();
session.Find<Contact>().Where("FirstName=@FirstName", new { FirstName="Andy" }).ToList();

Querying the database using Dynamic finders

var session = new Session("ConnectionStringHere");
session.DynamicFind<Contact>().ByFirstName("Andy", "Stewart");
session.DynamicFind<Contact>().ByFirstNameAndSurname("Andy", "Stewart");

Todo

• Pluggable Sql Providers
• Support for running in memory
• Caching support
• Pluggable conventions