private static SortedListAllowDupes <DatabaseColumn> GetMappedColumnsForConceptualProperty(ConceptualProperty property)
{
var columns = new SortedListAllowDupes <DatabaseColumn>(new DatabaseColumnComparer());
if (property != null)
{
foreach (var sp in property.GetAntiDependenciesOfType <ScalarProperty>())
{
// only want scalar props for a mapping fragment, not for an association set mapping
if (sp.Parent is MappingFragment)
{
if (sp.ColumnName.Target == null)
{
Debug.Fail("Null target for " + sp.ToPrettyString());
}
else
{
// in the situation where property is in multiple EntityTypeMappings (an inheritance
// hierarchy) there can be multiple ScalarProperty anti-dependencies of property
// (one for each EntityTypeMapping) all of which map to the same DatabaseColumn -
// in this case only insert the first of these
var dbCol = DatabaseColumn.CreateFromProperty(sp.ColumnName.Target);
if (!columns.Contains(dbCol))
{
columns.Add(dbCol);
}
}
}
}
}
return(columns);
}
/// <summary>
/// returns list of StorageProperties mapped to a ConceptualProperty via an EntitySetMapping
/// or an EntityTypeMapping
/// </summary>
/// <param name="cProp"></param>
/// <returns></returns>
private static IEnumerable <StorageProperty> MappedStorageProperties(ConceptualProperty cProp)
{
Debug.Assert(null != cProp, "null ConceptualProperty");
if (null != cProp)
{
// loop over ConceptualProperties mapped to this ConceptualProperty
foreach (var sp in cProp.GetAntiDependenciesOfType <ScalarProperty>())
{
// only use ScalarProperty elements inside an EntitySetMapping or EntityTypeMapping
// (MappingFragment is only used by those types of mappings)
if (null != sp.GetParentOfType(typeof(MappingFragment)))
{
var sProp = sp.ColumnName.Target as StorageProperty;
if (null != sProp)
{
yield return(sProp);
}
}
}
}
}