protected void FillLazyObjectRelations(DataObject dataObject, bool autoload)
{
try
{
var dataObjectType = dataObject.GetType();
MemberInfo[] myMembers;
if (!MemberInfoCache.TryGetValue(dataObjectType, out myMembers))
{
myMembers = dataObjectType.GetMembers();
MemberInfoCache[dataObjectType] = myMembers;
}
for (int i = 0; i < myMembers.Length; i++)
{
Relation[] myAttributes = GetRelationAttributes(myMembers[i]);
if (myAttributes.Length > 0)
{
Relation rel = myAttributes[0];
if ((rel.AutoLoad == false) && autoload)
{
continue;
}
bool isArray = false;
Type remoteType;
DataObject[] elements;
string local = rel.LocalField;
string remote = rel.RemoteField;
if (myMembers[i] is PropertyInfo)
{
remoteType = ((PropertyInfo)myMembers[i]).PropertyType;
}
else
{
remoteType = ((FieldInfo)myMembers[i]).FieldType;
}
if (remoteType.HasElementType)
{
remoteType = remoteType.GetElementType();
isArray = true;
}
PropertyInfo prop = dataObjectType.GetProperty(local);
FieldInfo field = dataObjectType.GetField(local);
object val = 0;
if (prop != null)
{
val = prop.GetValue(dataObject, null);
}
if (field != null)
{
val = field.GetValue(dataObject);
}
if (val != null && val.ToString() != string.Empty)
{
if (DataObject.GetPreCachedFlag(remoteType))
{
elements = new DataObject[1];
elements[0] = FindObjectByKeyImpl(remoteType, val);
}
else
{
elements = SelectObjectsImpl(remoteType, remote + " = '" + Escape(val.ToString()) + "'", Transaction.IsolationLevel.DEFAULT);
}
if ((elements != null) && (elements.Length > 0))
{
if (isArray)
{
if (myMembers[i] is PropertyInfo)
{
((PropertyInfo)myMembers[i]).SetValue(dataObject, elements, null);
}
if (myMembers[i] is FieldInfo)
{
var currentField = (FieldInfo)myMembers[i];
ConstructorInfo constructor;
if (!ConstructorByFieldType.TryGetValue(currentField.FieldType, out constructor))
{
constructor = currentField.FieldType.GetConstructor(new[] { typeof(int) });
ConstructorByFieldType[currentField.FieldType] = constructor;
}
object elementHolder = constructor.Invoke(new object[] { elements.Length });
var elementArray = (object[])elementHolder;
for (int m = 0; m < elementArray.Length; m++)
{
elementArray[m] = elements[m];
}
currentField.SetValue(dataObject, elementArray);
}
}
else
{
if (myMembers[i] is PropertyInfo)
{
((PropertyInfo)myMembers[i]).SetValue(dataObject, elements[0], null);
}
if (myMembers[i] is FieldInfo)
{
((FieldInfo)myMembers[i]).SetValue(dataObject, elements[0]);
}
}
}
}
}
}
}
catch (Exception e)
{
throw new DatabaseException("Resolving Relations for " + dataObject.TableName + " failed!", e);
}
}
public void RegisterDataObject(Type objType)
{
if (TableDatasets.ContainsKey(GetTableOrViewName(objType)))
{
return;
}
bool primaryKeySpecified = false;
bool useAutoIncrementColumn = false;
bool relations = false;
MemberInfo primaryIndexMember = null;
string tableName = GetTableOrViewName(objType);
var ds = new DataSet();
var table = new DataTable(tableName);
MemberInfo[] myMembers = objType.GetMembers();
for (int i = 0; i < myMembers.Length; i++)
{
//object[] myAttributes = myMembers[i].GetCustomAttributes(true);
//object[] myAttributes = myMembers[i].GetCustomAttributes(typeof(DOL.Database.Attributes.DataElement), true);
object[] myAttributes = myMembers[i].GetCustomAttributes(typeof(PrimaryKey), true);
if (myAttributes.Length > 0)
{
primaryKeySpecified = true;
if (myMembers[i] is PropertyInfo)
{
table.Columns.Add(myMembers[i].Name, ((PropertyInfo)myMembers[i]).PropertyType);
}
else
{
table.Columns.Add(myMembers[i].Name, ((FieldInfo)myMembers[i]).FieldType);
}
table.Columns[myMembers[i].Name].AutoIncrement = ((PrimaryKey)myAttributes[0]).AutoIncrement;
useAutoIncrementColumn = table.Columns[myMembers[i].Name].AutoIncrement;
var index = new DataColumn[1];
index[0] = table.Columns[myMembers[i].Name];
primaryIndexMember = myMembers[i];
table.PrimaryKey = index;
continue;
}
myAttributes = myMembers[i].GetCustomAttributes(typeof(DataElement), true);
if (myAttributes.Length > 0)
{
//if(myAttributes[0] is Attributes.DataElement)
//{
if (myMembers[i] is PropertyInfo)
{
table.Columns.Add(myMembers[i].Name, ((PropertyInfo)myMembers[i]).PropertyType);
}
else
{
table.Columns.Add(myMembers[i].Name, ((FieldInfo)myMembers[i]).FieldType);
}
table.Columns[myMembers[i].Name].AllowDBNull = ((DataElement)myAttributes[0]).AllowDbNull;
if (((DataElement)myAttributes[0]).Unique)
{
table.Constraints.Add(new UniqueConstraint("UNIQUE_" + myMembers[i].Name, table.Columns[myMembers[i].Name]));
}
if (((DataElement)myAttributes[0]).IndexColumns != string.Empty)
{
table.Columns[myMembers[i].Name].ExtendedProperties.Add("INDEX", true);
table.Columns[myMembers[i].Name].ExtendedProperties.Add("INDEXCOLUMNS", ((DataElement)myAttributes[0]).IndexColumns);
}
else if (((DataElement)myAttributes[0]).Index)
{
table.Columns[myMembers[i].Name].ExtendedProperties.Add("INDEX", true);
}
if (((DataElement)myAttributes[0]).Varchar > 0)
{
table.Columns[myMembers[i].Name].ExtendedProperties.Add("VARCHAR", ((DataElement)myAttributes[0]).Varchar);
}
//if(myAttributes[0] is Attributes.PrimaryKey)
myAttributes = GetRelationAttributes(myMembers[i]);
//if(myAttributes[0] is Attributes.Relation)
if (myAttributes.Length > 0)
{
relations = true;
}
}
}
if (useAutoIncrementColumn == false)
{
// We define the Tablename_ID column that will always contain a generated unique ID
DataColumn idColumn = table.Columns.Add(tableName + "_ID", typeof(string));
if (primaryKeySpecified)
{
// if another primary key is defined on this table but the TableName_ID column is still being used then force
// the creation of a unique index on the the TableName_ID column
table.Constraints.Add(new UniqueConstraint(idColumn.ColumnName, idColumn));
}
}
if (primaryKeySpecified == false)
{
var index = new DataColumn[1];
index[0] = table.Columns[tableName + "_ID"];
table.PrimaryKey = index;
}
if (Connection.IsSQLConnection)
{
Connection.CheckOrCreateTable(table);
}
ds.DataSetName = tableName;
ds.EnforceConstraints = true;
ds.CaseSensitive = false;
ds.Tables.Add(table);
var dth = new DataTableHandler(ds);
dth.HasRelations = relations;
dth.UsesPreCaching = DataObject.GetPreCachedFlag(objType);
TableDatasets.Add(tableName, dth);
//if (dth.UsesPreCaching && Connection.IsSQLConnection)
//{
// // not useful for xml connection
// if (Log.IsDebugEnabled)
// Log.Debug("Precaching of " + table.TableName + "...");
// var objects = SQLSelectObjects<TObject>("");
// object key;
// for (int i = 0; i < objects.Length; i++)
// {
// key = null;
// if (primaryIndexMember == null)
// {
// key = objects[i].ObjectId;
// }
// else
// {
// if (primaryIndexMember is PropertyInfo)
// {
// key = ((PropertyInfo) primaryIndexMember).GetValue(objects[i], null);
// }
// else if (primaryIndexMember is FieldInfo)
// {
// key = ((FieldInfo) primaryIndexMember).GetValue(objects[i]);
// }
// }
// if (key != null)
// {
// dth.SetPreCachedObject(key, objects[i]);
// }
// else
// {
// if (Log.IsErrorEnabled)
// Log.Error("Primary key is null! " + ((primaryIndexMember != null) ? primaryIndexMember.Name : ""));
// }
// }
// if (Log.IsDebugEnabled)
// Log.Debug("Precaching of " + table.TableName + " finished!");
//}
}