https://github.com/chappoo/metaex

MetaEx-tensions. Provides extensions for managing metadata on arbitrary POCO objects. Based heavily on the @ServiceStack UserAuth Meta implementation (uses ServiceStack.Text).
https://github.com/chappoo/metaex

Last synced: about 1 month ago
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MetaEx-tensions. Provides extensions for managing metadata on arbitrary POCO objects. Based heavily on the @ServiceStack UserAuth Meta implementation (uses ServiceStack.Text).

• Host: GitHub
• URL: https://github.com/chappoo/metaex
• Owner: chappoo
• Created: 2013-07-15T06:33:27.000Z (over 11 years ago)
• Default Branch: master
• Last Pushed: 2013-07-15T09:48:44.000Z (over 11 years ago)
• Last Synced: 2023-03-29T03:39:36.436Z (almost 2 years ago)
• Language: C#
• Homepage:
• Size: 398 KB
• Stars: 1
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
MetaEx

======

MetaEx-tensions.   Provides extensions for managing metadata on arbitrary POCO objects.  Based heavily on the @ServiceStack UserAuth Meta implementation (uses ServiceStack.Text).

###What for?###

I found myself working with an ORM (no names mentioned) and wanting to extend a table type with various parameters.  Rather than repeatedly writing database migration scripts and resyncing the (unmentioned) model every time a new parameter was required, I opted to create a string field in the database and manage a `Dictionary` approach with serialization, much like the simple implementation in @ServiceStack **UserAuth.Meta**.

This implementation provides a really simple approach for such use-cases.

Kudos to the guys at @ServiceStack for the core tech.

###Usage###

`IMeta` interface requires the Meta string field on the POCO.  This field is then used with whatever persistence model you wish.

    public class TestObjectWithMetaData : IMeta

    {

        public string Meta { get; set; }

    }

This hooks up a couple of extension methods on the POCO (via `IMeta`)

	public static T GetMeta(this IMeta meta)

	public static void SetMeta(this IMeta meta, T value)

Allowing for use such as

	var testObj = new TestObjectWithMetaData();

	testObj.SetMeta(new ThingWithArms { FirstName = "Nancy", LastName = "Sinatra", NumberOfArms = 2 });

Get the meta object via:

	var thingWithArms = testObj.GetMeta();

You can save multiple meta objects (of different types):

	var testObj = new TestObjectWithMetaData();

	testObj.SetMeta(new ThingWithArms { FirstName = "Nancy", LastName = "Sinatra", NumberOfArms = 2 });

	testObj.SetMeta(new ThingWithLegs { FirstName = "Frank", LastName = "Sinatra", NumberOfLegs = 2 });

and get them:

	var thingWithArms = testObj.GetMeta();

	var thingWithLegs = testObj.GetMeta();

###Dependencies###

    

       (for unit test project)