static bool EnumCompare(ref FieldChange change, PropertyInfo info, object valueOld, object valueNew)
{
if (valueOld != null && valueNew != null && Enum.Equals(valueOld, valueNew))
{
return(false);
}
change = new FieldChange();
change.OldValue = valueOld?.ToString();
change.NewValue = valueNew?.ToString();
return(true);
}
static bool StringCompare(ref FieldChange change, string valueOld, string valueNew)
{
if (String.IsNullOrWhiteSpace(valueNew) && String.IsNullOrWhiteSpace(valueOld))
{
return(false);
}
if (String.Equals(valueOld, valueNew))
{
return(false);
}
change = new FieldChange();
change.OldValue = valueOld;
change.NewValue = valueNew;
return(true);
}
static bool EntityCompare(ref FieldChange change, object valueOld, object valueNew)
{
if (DomainHelper.EqualDomainObjects(valueOld, valueNew))
{
return(false);
}
change = new FieldChange();
if (valueOld != null)
{
change.OldValue = HistoryMain.GetObjectTilte(valueOld);
change.OldId = DomainHelper.GetId(valueOld);
}
if (valueNew != null)
{
change.NewValue = HistoryMain.GetObjectTilte(valueNew);
change.NewId = DomainHelper.GetId(valueNew);
}
return(true);
}
static bool BooleanCompare(ref FieldChange change, PropertyInfo info, object valueOld, object valueNew)
{
var boolOld = valueOld as bool?;
var boolNew = valueNew as bool?;
if (boolOld != null && boolNew != null && bool.Equals(boolOld.Value, boolNew.Value))
{
return(false);
}
change = new FieldChange();
if (boolOld != null)
{
change.OldValue = boolOld.Value.ToString();
}
if (boolNew != null)
{
change.NewValue = boolNew.Value.ToString();
}
return(true);
}
static bool IntCompare <TNumber>(ref FieldChange change, PropertyInfo info, object valueOld, object valueNew) where TNumber : struct
{
var numberOld = valueOld as TNumber?;
var numberNew = valueNew as TNumber?;
if (numberOld != null && numberNew != null && Equals(numberOld.Value, numberNew.Value))
{
return(false);
}
change = new FieldChange();
if (numberOld != null)
{
change.OldValue = String.Format("{0:D}", numberOld);
}
if (numberNew != null)
{
change.NewValue = String.Format("{0:D}", numberNew);
}
return(true);
}
static bool DecimalCompare(ref FieldChange change, PropertyInfo info, object valueOld, object valueNew)
{
var numberOld = valueOld as Decimal?;
var numberNew = valueNew as Decimal?;
if (numberOld != null && numberNew != null && Decimal.Equals(numberOld.Value, numberNew.Value))
{
return(false);
}
change = new FieldChange();
if (numberOld != null)
{
change.OldValue = numberOld.Value.ToString("G20");
}
if (numberNew != null)
{
change.NewValue = numberNew.Value.ToString("G20");
}
return(true);
}
static bool DateTimeCompare(ref FieldChange change, PropertyInfo info, object valueOld, object valueNew)
{
var dateOld = valueOld as DateTime?;
var dateNew = valueNew as DateTime?;
if (dateOld != null && dateNew != null && DateTime.Equals(dateOld.Value, dateNew.Value))
{
return(false);
}
var dateOnly = info.GetCustomAttributes(typeof(HistoryDateOnlyAttribute), true).Length > 0;
change = new FieldChange();
if (dateOld != null)
{
change.OldValue = dateOnly ? dateOld.Value.ToShortDateString() : dateOld.Value.ToString();
}
if (dateNew != null)
{
change.NewValue = dateOnly ? dateNew.Value.ToShortDateString() : dateNew.Value.ToString();
}
return(true);
}
public virtual void AddFieldChange(FieldChange change)
{
change.Entity = this;
Changes.Add(change);
}
private static FieldChange CreateChange(object valueNew, object valueOld, NHibernate.Persister.Entity.IEntityPersister persister, int i)
{
if (valueOld == null && valueNew == null)
{
return(null);
}
NHibernate.Type.IType propType = persister.PropertyTypes[i];
string propName = persister.PropertyNames[i];
var propInfo = persister.MappedClass.GetProperty(propName);
if (propInfo.GetCustomAttributes(typeof(IgnoreHistoryTraceAttribute), true).Length > 0)
{
return(null);
}
FieldChange change = null;
#region Обработка в зависимости от типа данных
if (propType is NHibernate.Type.StringType && !StringCompare(ref change, (string)valueOld, (string)valueNew))
{
return(null);
}
var link = propType as NHibernate.Type.ManyToOneType;
if (link != null)
{
if (!EntityCompare(ref change, valueOld, valueNew))
{
return(null);
}
}
if ((propType is NHibernate.Type.DateTimeType || propType is NHibernate.Type.TimestampType) && !DateTimeCompare(ref change, propInfo, valueOld, valueNew))
{
return(null);
}
if (propType is NHibernate.Type.DecimalType && !DecimalCompare(ref change, propInfo, valueOld, valueNew))
{
return(null);
}
if (propType is NHibernate.Type.BooleanType && !BooleanCompare(ref change, propInfo, valueOld, valueNew))
{
return(null);
}
if (propType is NHibernate.Type.Int16Type && !IntCompare <Int16>(ref change, propInfo, valueOld, valueNew))
{
return(null);
}
if (propType is NHibernate.Type.Int32Type && !IntCompare <Int32>(ref change, propInfo, valueOld, valueNew))
{
return(null);
}
if (propType is NHibernate.Type.Int64Type && !IntCompare <Int64>(ref change, propInfo, valueOld, valueNew))
{
return(null);
}
if (propType is NHibernate.Type.UInt16Type && !IntCompare <UInt16>(ref change, propInfo, valueOld, valueNew))
{
return(null);
}
if (propType is NHibernate.Type.UInt32Type && !IntCompare <UInt32>(ref change, propInfo, valueOld, valueNew))
{
return(null);
}
if (propType is NHibernate.Type.UInt64Type && !IntCompare <UInt64>(ref change, propInfo, valueOld, valueNew))
{
return(null);
}
if (propType is NHibernate.Type.EnumStringType && !EnumCompare(ref change, propInfo, valueOld, valueNew))
{
return(null);
}
#endregion
if (change != null)
{
change.Path = propName;
change.UpdateType();
return(change);
}
logger.Warn("Трекер не умеет сравнивать изменения в полях типа {0}. Поле {1} пропущено.", propType, propName);
return(null);
}