//public async Task<T> GetAsync(Expression<Func<T, bool>> predicate, params Expression<Func<T, object>>[] includes)
//{
// var result = await _objectSet.FirstOrDefaultAsync(predicate);
// return result;
//}
public async Task <T> UpdateAsync(T updated, int key)
{
if (updated == null)
{
return(null);
}
T existing = await _objectSet.FindAsync(key);
var buildings = _context.Building;
var Newbuildings = buildings;
if (existing != null)
{
_context.Entry(existing).State = EntityState.Modified;
_context.Attach(existing);
var entry = _context.Entry(existing);
var properties = existing.GetType().GetProperties();
foreach (var property in properties)
{
if (property.GetValue(updated) != null)
{
var newvalue = property.GetValue(updated);
property.SetValue(existing, newvalue);
}
}
entry.CurrentValues.SetValues(updated);
await _context.SaveChangesAsync();
}
return(existing);
}
public void CleanUp()
{
// All the data needs to be reverted back in the reverse order
// of the order in which they are modified(i.e, SaveChangesAttempt) into DB
// For the values modified in an instance, they should be undoed
// as in the same order in which they are added in Context ChangeTracker
foreach (var cleanUpDataInfo in CleanUpDataInfoes
.OrderBy(cudi => cudi.DateTime)//TODO: remove this condition?
.OrderByDescending(cudi => cudi.SaveChangesAttempt))
{
using (ApiContext context = dbContextFactory.Create())
{
switch (cleanUpDataInfo.EntityState)
{
case EntityState.Modified:
context.Attach(cleanUpDataInfo.Entity);
context.Entry(cleanUpDataInfo.Entity).CurrentValues.SetValues(cleanUpDataInfo.Values);
break;
case EntityState.Added:
context.Remove(cleanUpDataInfo.Entity);
break;
case EntityState.Deleted:
string databaseName = context.Database.GetDbConnection().Database;
var mapping = context.Model.FindEntityType(cleanUpDataInfo.Entity.GetType()).Relational();
string schema = mapping.Schema ?? "dbo";
string tableName = mapping.TableName;
string rawSqlIdentityInsertOn = $"SET IDENTITY_INSERT [{databaseName}].[{schema}].[{tableName}] ON";
string rawSqlIdentityInsertOff = $"SET IDENTITY_INSERT [{databaseName}].[{schema}].[{tableName}] OFF";
// Data Fixup
var references = cleanUpDataInfo.EntityEntry.References;
foreach (ReferenceEntry referenceEntry in references)
{
// Set this to null, as a workaround for the scenario,
// when Navigation Property(User) value is passed along
// with it's corresponding field(UserId) value
referenceEntry.CurrentValue = null;
}
using (IDbContextTransaction transaction = context.Database.BeginTransaction())
{
//context.Database.ExecuteSqlCommand($"SET IDENTITY_INSERT [WebApiDatabase].[dbo].[Users] ON");
// Commented were not working
//context.Database.ExecuteSqlCommand($"SET IDENTITY_INSERT [{databaseName}].[{schema}].[{tableName}] ON");
//context.Database.ExecuteSqlCommand("SET IDENTITY_INSERT [{0}].[{1}].[{2}] ON", databaseName, schema, tableName);
context.Database.ExecuteSqlCommand(rawSqlIdentityInsertOn);
context.Add(cleanUpDataInfo.Entity);
context.SaveChanges();
context.Database.ExecuteSqlCommand(rawSqlIdentityInsertOff);
transaction.Commit();
continue;
}
default:
continue;
//break;
}
context.SaveChanges();
}
}
}
