private List <AuditEntry> OnBeforeSaveChanges()
{
ChangeTracker.DetectChanges();
var auditEntries = new List <AuditEntry>();
foreach (var entry in ChangeTracker.Entries())
{
if (entry.Entity is Log || entry.Entity is AppUser || entry.State == EntityState.Detached || entry.State == EntityState.Unchanged)
{
continue;
}
var auditEntry = new AuditEntry(entry, _httpContextAccessor);
auditEntry.TableName = entry.Metadata.GetTableName();
auditEntries.Add(auditEntry);
foreach (var property in entry.Properties)
{
if (property.IsTemporary)
{
// value will be generated by the database, get the value after saving
auditEntry.TemporaryProperties.Add(property);
continue;
}
string propertyName = property.Metadata.Name;
//if (property.Metadata.IsPrimaryKey())
//{
// auditEntry.KeyValues[propertyName] = property.CurrentValue;
// continue;
//}
switch (entry.State)
{
//Pegar a opertação
case EntityState.Added:
auditEntry.Operacao = "Adição";
auditEntry.NewValues[propertyName] = property.CurrentValue;
break;
case EntityState.Deleted:
auditEntry.Operacao = "Exclusão";
auditEntry.OldValues[propertyName] = property.OriginalValue;
break;
case EntityState.Modified:
auditEntry.Operacao = "Atualização";
if (property.IsModified)
{
auditEntry.OldValues[propertyName] = property.OriginalValue;
auditEntry.NewValues[propertyName] = property.CurrentValue;
}
break;
}
}
}
// Save audit entities that have all the modifications
foreach (var auditEntry in auditEntries.Where(_ => !_.HasTemporaryProperties))
{
Logs.Add(auditEntry.ToLog());
}
// keep a list of entries where the value of some properties are unknown at this step
return(auditEntries.Where(_ => _.HasTemporaryProperties).ToList());
}