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);
}
}
protected IDbCommand CreateRetrievalPreparedStatement(ITypeFieldValueList keyValueList, ITransaction tx)
{
Type targetType = keyValueList.Type;
EntityInfo entityInfo = CacheManager.GetEntityInfo(targetType);
string query = entityInfo.GetLoadQuery(DbLayer);
IDbCommand cmd;
try
{
cmd = tx.CreateCommand();
cmd.CommandText = query;
}
catch (Exception ex)
{
string message = String.Format("SQL Exception while trying create command for sql {0}", query);
throw new CommandCreationException(message, ex);
}
ICollection <IColumn> keys = entityInfo.GetKeys();
StringBuilder logSb = new StringBuilder();
bool showQuery = Config.ShowQueries;
if (showQuery)
{
logSb.Append(query);
}
int i = 0;
foreach (IColumn key in keys)
{
Object fieldValue = keyValueList.GetFieldValue(key.AttributeName).Value;
if (showQuery)
{
logSb.Append(" ,").Append(key.ColumnName).Append("=").Append(fieldValue);
}
DbLayer.DataManipulate().SetToPreparedStatement(cmd, fieldValue, ++i, key);
}
if (showQuery)
{
Logger.GetLogger(Config.LoggerName).Debug(logSb.ToString());
}
if (Config.EnableStatistics)
{
Statistics.RegisterSelect(targetType);
}
return(cmd);
}
private bool VersionValidated(IReadOnlyEntity entity, Type type, ITransaction tx)
{
EntityInfo entityInfo = CacheManager.GetEntityInfo(type);
ICollection <IColumn> typeColumns = entityInfo.Columns;
foreach (IColumn typeColumn in typeColumns)
{
if (typeColumn.ColumnType == ColumnType.Version)
{
Object classValue = ExtractCurrentVersionValue(entity, typeColumn, type, tx);
EntityFieldValue originalFieldValue = entity.Context.ChangeTracker.GetFieldValue(typeColumn.AttributeName);
return(originalFieldValue != null && classValue == originalFieldValue.Value ||
(originalFieldValue != null && classValue != null && classValue.Equals(originalFieldValue.Value)));
}
}
if (entityInfo.TableInfo.UpdateStrategy == UpdateStrategy.ChangedColumns)
{
ICollection <EntityFieldValue> modified = GetModifiedFieldValues(entity, type);
typeColumns = new List <IColumn>();
foreach (EntityFieldValue fieldValue in modified)
{
typeColumns.Add(fieldValue.Column);
}
}
ITypeFieldValueList fieldValueList = ExtractCurrentRowValues(entity, type, tx);
if (fieldValueList == null)
{
return(false);
}
foreach (IColumn typeColumn in typeColumns)
{
EntityFieldValue classFieldValue = fieldValueList.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)
{
return(false);
}
}
return(true);
}
private static void SetRelationObjectKeyValues(ITypeFieldValueList valueTypeList, Type entityType, Type childEntityType
, IEnumerable <IEntity> childObjects, IRelation relation)
{
EntityInfo entityInfo = CacheManager.GetEntityInfo(entityType);
ICollection <IColumn> columns = entityInfo.Columns;
foreach (RelationColumnMapping mapping in relation.TableColumnMappings)
{
IColumn matchColumn = entityInfo.FindColumnByAttribute(mapping.FromField);
EntityFieldValue fieldValue = valueTypeList.GetFieldValue(matchColumn.AttributeName);
if (fieldValue != null)
{
SetChildPrimaryKeys(fieldValue, childEntityType, childObjects, mapping);
}
else
{
string message = String.Format("The column {0} does not have a matching column in the object {1}", matchColumn.ColumnName, valueTypeList.Type.FullName);
throw new NoMatchingColumnFoundException(message);
}
}
}
