IW4M-Admin/SharedLibrary/Database/DatabaseContext.cs
RaidMax 0b62cba52a Add libraries for EntityFramework
Stats plugin work
Allow plugins to dynamically add EF classes to the context
2018-02-06 23:19:06 -06:00

80 lines
2.8 KiB
C#

using System;
using System.Collections.Generic;
using System.Data.Entity;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using SharedLibrary.Database.Models;
using System.Data.SqlServerCe;
using System.Data.Entity.ModelConfiguration.Conventions;
using System.Reflection;
namespace SharedLibrary.Database
{
public class DatabaseContext : DbContext
{
public DbSet<EFClient> Clients { get; set; }
public DbSet<EFAlias> Aliases { get; set; }
public DbSet<EFAliasLink> AliasLinks { get; set; }
public DbSet<EFPenalty> Penalties { get; set; }
public DatabaseContext() : base("DefaultConnection")
{
System.Data.Entity.Database.SetInitializer(new Initializer());
Configuration.LazyLoadingEnabled = false;
}
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
modelBuilder.Entity<EFPenalty>()
.HasRequired(p => p.Offender)
.WithMany(c => c.ReceivedPenalties)
.HasForeignKey(c => c.OffenderId)
.WillCascadeOnDelete(false);
modelBuilder.Entity<EFPenalty>()
.HasRequired(p => p.Punisher)
.WithMany(c => c.AdministeredPenalties)
.HasForeignKey(c => c.PunisherId)
.WillCascadeOnDelete(false);
modelBuilder.Entity<EFAliasLink>()
.HasMany(e => e.Children)
.WithRequired(a => a.Link)
.HasForeignKey(a => a.LinkId)
.WillCascadeOnDelete(true);
modelBuilder.Conventions.Remove<OneToManyCascadeDeleteConvention>();
// todo: custom load DBSets from plugins
// https://aleemkhan.wordpress.com/2013/02/28/dynamically-adding-dbset-properties-in-dbcontext-for-entity-framework-code-first/
foreach (string dllPath in System.IO.Directory.GetFiles($"{Environment.CurrentDirectory}{System.IO.Path.DirectorySeparatorChar}Plugins"))
{
Assembly library;
try
{
library = Assembly.LoadFile(dllPath);
}
// not a valid assembly, ie plugin files
catch (Exception)
{
continue;
}
foreach(var type in library.ExportedTypes)
{
if (type.IsClass && type.IsSubclassOf(typeof(SharedEntity)))
{
var method = modelBuilder.GetType().GetMethod("Entity");
method = method.MakeGenericMethod(new Type[] { type });
method.Invoke(modelBuilder, null);
}
}
}
base.OnModelCreating(modelBuilder);
}
}
}