private ICollection <EntityFieldValue> GetModifiedFieldValues(IReadOnlyEntity entity, Type type)
{
EntityInfo entityInfo = CacheManager.GetEntityInfo(type);
ICollection <IColumn> typeColumns = entityInfo.Columns;
ITypeFieldValueList currentValues = OperationUtils.ExtractEntityTypeFieldValues(entity, type);
ICollection <EntityFieldValue> modifiedColumns = new List <EntityFieldValue>();
foreach (IColumn typeColumn in typeColumns)
{
if (typeColumn.Key)
{
continue;
}
EntityFieldValue classFieldValue = currentValues.GetFieldValue(typeColumn.AttributeName);
EntityFieldValue originalFieldValue = entity.Context != null?entity.Context.ChangeTracker.GetFieldValue(typeColumn.AttributeName) : null;
bool matches = originalFieldValue != null && classFieldValue != null && classFieldValue.Value == originalFieldValue.Value ||
(originalFieldValue != null && classFieldValue != null && classFieldValue.Value != null && classFieldValue.Value.Equals(originalFieldValue.Value));
if (!matches)
{
modifiedColumns.Add(classFieldValue);
}
}
return(modifiedColumns);
}
private static void SetParentRelationFieldsForNonIdentifyingRelations(IEntity parentEntity
, IEnumerable <IEntity> childObjects, RelationColumnMapping mapping)
{
IReadOnlyEntity firstObject = null;
IEnumerator <IEntity> childEnumerator = childObjects.GetEnumerator();
if (childEnumerator.MoveNext())
{
firstObject = childEnumerator.Current;
}
if (firstObject == null)
{
return;
}
EntityInfo parentInfo = CacheManager.GetEntityInfo(parentEntity);
EntityInfo childInfo = CacheManager.GetEntityInfo(firstObject);
PropertyInfo setter = null;
bool foundOnce = false;
while (parentInfo != null)
{
IColumn parentMatchedColumn = parentInfo.FindColumnByAttribute(mapping.FromField);
if (parentMatchedColumn != null)
{
foundOnce = true;
setter = parentInfo.GetProperty(parentMatchedColumn);
}
parentInfo = parentInfo.SuperEntityInfo;
}
if (!foundOnce)
{
string message = String.Format("The field {0} does not have a matching field in the object {1}", mapping.ToField, firstObject.GetType().FullName);
throw new NoMatchingColumnFoundException(message);
}
foundOnce = false;
while (childInfo != null)
{
IColumn childMatchedColumn = childInfo.FindColumnByAttribute(mapping.ToField);
if (childMatchedColumn != null)
{
foundOnce = true;
foreach (IReadOnlyEntity dbObject in childObjects)
{
ITypeFieldValueList fieldValueList = OperationUtils.ExtractEntityTypeFieldValues(dbObject, childInfo.EntityType);
EntityFieldValue childFieldValue = fieldValueList.GetFieldValue(childMatchedColumn.AttributeName);
setter.SetValue(parentEntity, childFieldValue.Value, null);
}
}
childInfo = childInfo.SuperEntityInfo;
}
if (!foundOnce)
{
string message = String.Format("The field {0} does not have a matching field in the object {1}", mapping.ToField, firstObject.GetType().FullName);
throw new NoMatchingColumnFoundException(message);
}
}
private void SaveForType(IEntity entity, Type type, ITransaction tx)
{
EntityInfo entityInfo = CacheManager.GetEntityInfo(type);
if (entityInfo == null)
{
return;
}
ProcessNonIdentifyingRelations(entity, entityInfo);
ITypeFieldValueList fieldValues = OperationUtils.ExtractEntityTypeFieldValues(entity, type);
if (entity.Status == EntityStatus.Unmodified)
{
//do nothing
}
else if (entity.Status == EntityStatus.New)
{
Insert(entity, fieldValues, type, tx);
}
else if (entity.Status == EntityStatus.Modified)
{
if (entityInfo.TableInfo.VerifyOnWriteStrategy == VerifyOnWriteStrategy.Verify)
{
if (!VersionValidated(entity, type, tx))
{
throw new DataUpdatedFromAnotherSourceException(String.Format("The type {0} updated from another transaction", type));
}
OperationUtils.IncrementVersion(fieldValues);
SetValues(entity, fieldValues);
}
Update(entity, fieldValues, type, tx);
}
else if (entity.Status == EntityStatus.Deleted)
{
Delete(fieldValues, type, tx);
}
else
{
string message = String.Format("In-corret status for class {0}", type.FullName);
throw new IncorrectStatusException(message);
}
fieldValues = OperationUtils.ExtractEntityTypeFieldValues(entity, type);
IEntityContext entityContext = entity.Context;
if (entityContext != null)
{
entityContext.ChangeTracker.AddFields(fieldValues.FieldValues);
}
entity.Context.AddToCurrentObjectGraphIndex(entity);
ProcessIdentifyingRelations(entity, type, tx, entityInfo, fieldValues);
}