private static void FillRelations(this IModel model, PropertyInfo property)
{
var attribute = (ForeignKeyAttribute)property
.GetCustomAttributes(typeof(ForeignKeyAttribute))
.First();
var relations = ORM.GetRelations(model, attribute.Type);
property.SetValue(model, new DbSet(model, Data[attribute.Type]
.Where(m => relations.Contains(m.Id))));
}
public static void SaveChanges()
{
var models = Data.Values.SelectMany(e => e).ToList();
foreach (var model in models)
{
if (model.IsNew)
{
ORM.Insert(model);
model.IsNew = false;
}
if (model.IsChanged)
{
ORM.Update(model);
model.IsChanged = false;
}
if (model.IsDeleted)
{
ORM.Delete(model);
DeleteModel(model);
}
}
var dbSets = models.SelectMany(m => m.GetType()
.GetRelationProperties()
.Select(p => (DbSet)p.GetValue(m)));
foreach (var dbSet in dbSets)
{
if (dbSet == null)
{
continue;
}
foreach (var model in dbSet.NewModels)
{
ORM.AddRelation(dbSet.Parent, model);
}
dbSet.NewModels.Clear();
foreach (var model in dbSet.RemovedModels)
{
ORM.DeleteRelation(dbSet.Parent, model);
}
dbSet.RemovedModels.Clear();
}
}