entityframeworkattributeconfig's Introduction

Entity Framework Attribute Config

Allows you to configure properties by placing attributes on the properties of the Entity, rather than using the fluent configuration method. For example...

public class MyEntity 
{
    [DateTimePrecision(0)]    // Column will be created as datetime(0)
    public DateTime ShortDate { get; set; }
    
    [DecimalPrecision(18, 5)] // Column will be created as decimal(18,5)
    public decimal PreciseNumber { get; set; }
}

Install from nuget:

PM> Install-Package EFAttributeConfig

For each type of precision attribute you wish to use, add a line to your OnModelCreating method:

public class TestContext : DbContext 
{
	protected override void OnModelCreating(DbModelBuilder modelBuilder)
	{
	    base.OnModelCreating(modelBuilder);
	    
        // Add conventions for Precision Attributes
	    modelBuilder.Conventions.Add(new DecimalPrecisionAttributeConvention());
        modelBuilder.Conventions.Add(new DateTimePrecisionAttributeConvention());
	}
}

The following attributes have been implemented so far:

DecimalPrecisionAttribute - change the precision of a decimal
DateTimePrecisionAttribute - change the precision of a datetime2 or datetimeoffset type

Adding further attributes is simple - take a look at the implementation of the existing attributes for an example!

This project is an extension of this StackOverflow answer. Thanks to @richi2666 for the suggestion of using conventions instead of Reflection.

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