public ActiveRecordDescriptor Build(TableDefinition tableDef, BuildContext context)
{
ActiveRecordDescriptor desc = ObtainDescriptor(tableDef);
// ClassName
desc.ClassName = _namingService.CreateClassName( tableDef.Name );
// Plain fields
desc.Properties.AddRange( _plainFieldsService.InferProperties(tableDef) );
// Relations
desc.PropertiesRelations.AddRange( _relationsService.InferRelations(desc, tableDef, context) );
// Operations
// TODO!
context.RemovePendent(desc);
Build(context);
return desc;
}
public ActiveRecordDescriptor[] Build(BuildContext context)
{
while(context.HasPendents)
{
ActiveRecordDescriptor pendent = context.GetNextPendent();
Build(pendent.Table, context);
}
ActiveRecordDescriptor[] array = new ActiveRecordDescriptor[context.NewlyCreatedDescriptors.Count];
context.NewlyCreatedDescriptors.CopyTo(array, 0);
return array;
}
public ActiveRecordPropertyRelationDescriptor[] InferRelations(ActiveRecordDescriptor desc,
TableDefinition tableDef, BuildContext context)
{
if (desc == null) throw new ArgumentNullException("desc");
if (tableDef == null) throw new ArgumentNullException("tableDef");
if (context == null) throw new ArgumentNullException("context");
// if (tableDef.RelatedDescriptor != null && tableDef.RelatedDescriptor != desc) {
// throw new ArgumentException("Different descriptors");
// }
ArrayList list = new ArrayList();
CreateHasManyRelations(desc, tableDef, list, context);
CreateBelongsToRelations(desc, tableDef, list, context);
return (ActiveRecordPropertyRelationDescriptor[]) list.ToArray( typeof(ActiveRecordPropertyRelationDescriptor) );
}
private void CreateBelongsToRelations(ActiveRecordDescriptor desc, TableDefinition tableDef,
IList list, BuildContext context)
{
foreach(ColumnDefinition col in tableDef.Columns)
{
if (col.RelatedTable != null)
{
bool pendentNecessary = false;
String propertyName = _namingService.CreateClassName(col.RelatedTable.Name);
ActiveRecordDescriptor targetType = null;
if (col.RelatedTable.RelatedDescriptor == null && col.RelatedTable != tableDef)
{
col.RelatedTable.RelatedDescriptor = new ActiveRecordDescriptor(col.RelatedTable);
pendentNecessary = true;
}
else if (col.RelatedTable == tableDef)
{
targetType = desc;
}
if (targetType == null)
{
targetType = col.RelatedTable.RelatedDescriptor;
}
ActiveRecordBelongsToDescriptor belongsTo =
new ActiveRecordBelongsToDescriptor(col.Name,
propertyName, targetType);
list.Add(belongsTo);
if (pendentNecessary)
{
context.AddPendentDescriptor(belongsTo, col.RelatedTable.RelatedDescriptor);
}
}
}
}
public override void Deactivated(System.Collections.IDictionary context)
{
context["selectedtable"] = listBox1.SelectedItem;
context["buildcontext"] = new BuildContext();
ActiveRecordDescriptor ar = context["ardesc"] as ActiveRecordDescriptor;
ar.Table = listBox1.SelectedItem as TableDefinition;
}
private void CreateHasManyRelations(ActiveRecordDescriptor desc, TableDefinition tableDef,
IList list, BuildContext context)
{
foreach(TableDefinition fkTable in tableDef.TablesReferencedByHasRelation)
{
String propertyName = _namingService.CreateRelationName(fkTable.Name);
ActiveRecordDescriptor targetType = null;
String colName = null;
bool pendentNecessary = false;
ColumnDefinition selectedCol = null;
foreach(ColumnDefinition col in fkTable.Columns)
{
if (col.RelatedTable == tableDef)
{
colName = col.Name;
if (col.RelatedTable.RelatedDescriptor == null && col.RelatedTable != fkTable)
{
col.RelatedTable.RelatedDescriptor = new ActiveRecordDescriptor(fkTable);
pendentNecessary = true;
}
else if (col.RelatedTable == tableDef)
{
targetType = desc;
}
if (targetType == null)
{
targetType = col.RelatedTable.RelatedDescriptor;
}
selectedCol = col;
break;
}
}
// Just to protect ourselves from awkward conditions
if (colName == null) continue;
ActiveRecordHasManyDescriptor hasMany =
new ActiveRecordHasManyDescriptor(colName, propertyName, targetType);
if (pendentNecessary)
{
context.AddPendentDescriptor(hasMany, selectedCol.RelatedTable.RelatedDescriptor);
}
list.Add(hasMany);
}
}
