private void RemoveFragment(
EntitySet entitySet,
EntityTypeMapping entityTypeMapping,
MappingFragment fragment)
{
EdmProperty defaultDiscriminator = fragment.GetDefaultDiscriminator();
if (defaultDiscriminator != null && entityTypeMapping.EntityType.BaseType != null && !entityTypeMapping.EntityType.Abstract)
{
ColumnMapping columnMapping = this._tableMappings[fragment.Table].ColumnMappings.SingleOrDefault <ColumnMapping>((Func <ColumnMapping, bool>)(cm => cm.Column == defaultDiscriminator));
if (columnMapping != null)
{
PropertyMappingSpecification mappingSpecification = columnMapping.PropertyMappings.SingleOrDefault <PropertyMappingSpecification>((Func <PropertyMappingSpecification, bool>)(pm => pm.EntityType == entityTypeMapping.EntityType));
if (mappingSpecification != null)
{
columnMapping.PropertyMappings.Remove(mappingSpecification);
}
}
defaultDiscriminator.Nullable = true;
}
if (entityTypeMapping.EntityType.Abstract)
{
foreach (ColumnMapping columnMapping in this._tableMappings[fragment.Table].ColumnMappings.Where <ColumnMapping>((Func <ColumnMapping, bool>)(cm => cm.PropertyMappings.All <PropertyMappingSpecification>((Func <PropertyMappingSpecification, bool>)(pm => pm.EntityType == entityTypeMapping.EntityType)))))
{
fragment.Table.RemoveMember((EdmMember)columnMapping.Column);
}
}
entityTypeMapping.RemoveFragment(fragment);
if (entityTypeMapping.MappingFragments.Any <MappingFragment>())
{
return;
}
this._databaseMapping.GetEntitySetMapping(entitySet).RemoveTypeMapping(entityTypeMapping);
}
private void RemoveFragment(
EntitySet entitySet, EntityTypeMapping entityTypeMapping, MappingFragment fragment)
{
// Make the default discriminator nullable if this type isn't using it but there is a base type
var defaultDiscriminator = fragment.GetDefaultDiscriminator();
if (defaultDiscriminator != null &&
entityTypeMapping.EntityType.BaseType != null &&
!entityTypeMapping.EntityType.Abstract)
{
var columnMapping =
_tableMappings[fragment.Table].ColumnMappings.SingleOrDefault(
cm => cm.Column == defaultDiscriminator);
if (columnMapping != null)
{
var propertyMapping = columnMapping.PropertyMappings.SingleOrDefault(
pm => pm.EntityType == entityTypeMapping.EntityType);
if (propertyMapping != null)
{
columnMapping.PropertyMappings.Remove(propertyMapping);
}
}
defaultDiscriminator.Nullable = true;
}
// The default TPH mapping may result in columns being created that are no longer required
// when an abstract type mapping to the table is removed, for example in TPC cases. We need
// to remove these columns.
if (entityTypeMapping.EntityType.Abstract)
{
foreach (var columnMapping in _tableMappings[fragment.Table].ColumnMappings.Where(
cm => cm.PropertyMappings.All(pm => pm.EntityType == entityTypeMapping.EntityType)))
{
fragment.Table.RemoveMember(columnMapping.Column);
}
}
entityTypeMapping.RemoveFragment(fragment);
if (!entityTypeMapping.MappingFragments.Any())
{
_databaseMapping.GetEntitySetMapping(entitySet).RemoveTypeMapping(entityTypeMapping);
}
}
public static void RemoveDefaultDiscriminator(
this MappingFragment entityTypeMappingFragment,
EntitySetMapping entitySetMapping)
{
EdmProperty discriminatorColumn = entityTypeMappingFragment.RemoveDefaultDiscriminatorCondition();
if (discriminatorColumn != null)
{
EntityType table = entityTypeMappingFragment.Table;
table.Properties.Where <EdmProperty>((Func <EdmProperty, bool>)(c => c.Name.Equals(discriminatorColumn.Name, StringComparison.Ordinal))).ToList <EdmProperty>().Each <EdmProperty>(new Action <EdmProperty>(((StructuralType)table).RemoveMember));
}
if (entitySetMapping == null || !entityTypeMappingFragment.IsConditionOnlyFragment() || entityTypeMappingFragment.ColumnConditions.Any <ConditionPropertyMapping>())
{
return;
}
EntityTypeMapping typeMapping = entitySetMapping.EntityTypeMappings.Single <EntityTypeMapping>((Func <EntityTypeMapping, bool>)(etm => etm.MappingFragments.Contains(entityTypeMappingFragment)));
typeMapping.RemoveFragment(entityTypeMappingFragment);
if (typeMapping.MappingFragments.Count != 0)
{
return;
}
entitySetMapping.RemoveTypeMapping(typeMapping);
}