public static DirectedRelationship GetDirectedMappedRelationship(Entity entity, Reference reference)
{
Relationship relationship = reference.MappedRelationship();
if (relationship == null)
{
throw new NHibernateMappingException("Could not find mapped relationship for Reference: " +
reference.Name);
}
ITable mappedTable = EntityMapper.GetPrimaryTable(entity);
return(new DirectedRelationship(relationship, mappedTable));
}
private manytoone CreateManyToOneNode(DirectedReference directedReference, ITable referenceMappedTable)
{
fetchMode fetchMode;
bool insert;
bool update;
if (directedReference.Entity1IsFromEnd)
{
fetchMode = (fetchMode)Enum.Parse(typeof(fetchMode), directedReference.Reference.GetReferenceEnd1FetchMode().ToString(), true);
insert = directedReference.Reference.GetReferenceEnd1Insert();
update = directedReference.Reference.GetReferenceEnd1Update();
}
else
{
fetchMode = (fetchMode)Enum.Parse(typeof(fetchMode), directedReference.Reference.GetReferenceEnd2FetchMode().ToString(), true);
insert = directedReference.Reference.GetReferenceEnd2Insert();
update = directedReference.Reference.GetReferenceEnd2Update();
}
manytoone manyToOneNode = new manytoone();
manyToOneNode.@class = directedReference.ToEntity.Name;
manyToOneNode.name = directedReference.FromName;
//bool notNullableColumnsExist = directedRelationship.MappedColumns.Any(mc => !mc.Source.IsNullable);
manyToOneNode.notnull = true;
manyToOneNode.notnullSpecified = true;
manyToOneNode.fetch = fetchMode;
manyToOneNode.fetchSpecified = true;
manyToOneNode.insert = insert;
manyToOneNode.update = update;
ITable fromPrimaryMappedTable = EntityMapper.GetPrimaryTable(directedReference.FromEntity);
List <IColumn> fromKeyColumns = referenceMappedTable.Relationships.First(t => t.PrimaryTable == fromPrimaryMappedTable || t.ForeignTable == fromPrimaryMappedTable).ForeignKey.Columns.ToList();
if (fromKeyColumns.Count > 1)
{
foreach (var columnNode in GetColumnNodes(fromKeyColumns))
{
manyToOneNode.AddColumn(columnNode);
}
}
else
{
manyToOneNode.column = fromKeyColumns[0].Name.BackTick();
}
return(manyToOneNode);
}
private void ProcessManyToOneReference(
Entity entity,
DirectedReference directedReference,
Action <object> addItem,
string cascade,
string collectionCascade,
string lazy,
string orderByClause,
bool inverse)
{
if (directedReference.FromEndEnabled == false)
{
return;
}
ITable referenceMappedTable = directedReference.Reference.MappedTable();
DirectedRelationship directedRelationship = null;
if (referenceMappedTable == null)
{
directedRelationship = GetDirectedMappedRelationship(entity, directedReference.Reference);
}
if (directedReference.FromEndCardinality == Cardinality.One)
{
fetchMode fetchMode;
bool insert;
bool update;
if (directedReference.Entity1IsFromEnd)
{
fetchMode = (fetchMode)Enum.Parse(typeof(fetchMode), directedReference.Reference.GetReferenceEnd1FetchMode().ToString(), true);
insert = directedReference.Reference.GetReferenceEnd1Insert();
update = directedReference.Reference.GetReferenceEnd1Update();
}
else
{
fetchMode = (fetchMode)Enum.Parse(typeof(fetchMode), directedReference.Reference.GetReferenceEnd2FetchMode().ToString(), true);
insert = directedReference.Reference.GetReferenceEnd2Insert();
update = directedReference.Reference.GetReferenceEnd2Update();
}
manytoone manyToOneNode;
if (referenceMappedTable == null)
{
manyToOneNode = CreateManyToOneNode(directedReference, directedRelationship, cascade);
}
else
{
manyToOneNode = CreateManyToOneNode(directedReference, referenceMappedTable);
}
manyToOneNode.fetch = fetchMode;
manyToOneNode.fetchSpecified = true;
manyToOneNode.insert = insert;
manyToOneNode.update = update;
addItem(manyToOneNode);
}
else
{
key keyNode = new key();
if (referenceMappedTable == null &&
directedRelationship.ToKey.Columns.Count > 1)
{
foreach (var columnNode in GetColumnNodes(directedRelationship.ToKey.Columns))
{
keyNode.AddColumn(columnNode);
}
}
else if (referenceMappedTable != null)
{
ITable toPrimaryMappedTable = EntityMapper.GetPrimaryTable(directedReference.ToEntity);
var toColumnsInPrimaryKey = referenceMappedTable.Relationships.First(t => t.PrimaryTable == toPrimaryMappedTable || t.ForeignTable == toPrimaryMappedTable).ForeignKey.Columns;
foreach (var columnNode in GetColumnNodes(toColumnsInPrimaryKey))
{
keyNode.AddColumn(columnNode);
}
}
else
{
keyNode.column1 = directedRelationship.ToKey.Columns[0].Name.BackTick();
}
onetomany oneToManyNode = new onetomany();
oneToManyNode.@class = directedReference.ToEntity.Name;
collectionFetchMode collFetchMode;
if (directedReference.Entity1IsFromEnd)
{
collFetchMode = (collectionFetchMode)Enum.Parse(typeof(collectionFetchMode), directedReference.Reference.GetReferenceEnd1CollectionFetchMode().ToString(), true);
}
else
{
collFetchMode = (collectionFetchMode)Enum.Parse(typeof(collectionFetchMode), directedReference.Reference.GetReferenceEnd2CollectionFetchMode().ToString(), true);
}
AssociationType type = NHCollections.GetAssociationType(directedReference);
switch (type)
{
case AssociationType.None:
Log.WarnFormat("No association type was set on reference {0} for the end {1}. This is usually an error.", directedReference.Reference.Name, directedReference.Entity1IsFromEnd ? "1" : "2");
return;
case AssociationType.Set:
var set = CreateSetNode(directedReference, keyNode, collectionCascade, collFetchMode, lazy, inverse);
set.Item = oneToManyNode;
if (orderByClause.Length > 0)
{
set.orderby = orderByClause;
}
addItem(set);
break;
case AssociationType.Map:
var mapNode = CreateMapNode(directedReference, keyNode, collectionCascade, collFetchMode, lazy, inverse);
mapNode.Item = new index
{
column1 = NHCollections.GetIndexColumnName(directedReference),
type = NHCollections.GetIndexColumnTypeName(directedReference, EntityMapper.GetPrimaryTable(directedReference.ToEntity))
};
mapNode.Item1 = oneToManyNode;
if (orderByClause.Length > 0)
{
mapNode.orderby = orderByClause;
}
addItem(mapNode);
break;
case AssociationType.Bag:
var bag = CreateBagNode(directedReference, keyNode, collectionCascade, collFetchMode, lazy, inverse);
bag.Item = oneToManyNode;
if (orderByClause.Length > 0)
{
bag.orderby = orderByClause;
}
addItem(bag);
break;
case AssociationType.List:
list listNode = CreateListNode(directedReference, keyNode, collectionCascade, collFetchMode, lazy, inverse);
listNode.Item = new index {
column1 = NHCollections.GetIndexColumnName(directedReference)
};
listNode.Item1 = oneToManyNode;
if (orderByClause.Length > 0)
{
listNode.orderby = orderByClause;
}
addItem(listNode);
break;
case AssociationType.IDBag:
idbag idbagNode = CreateIdBagNode(directedReference, keyNode, collectionCascade, collFetchMode, lazy, inverse);
idbagNode.collectionid = new collectionid
{
column1 = NHCollections.GetIndexColumnName(directedReference),
generator = new generator {
@class = "sequence"
},
type = NHCollections.GetIndexColumnTypeName(directedReference, EntityMapper.GetPrimaryTable(directedReference.ToEntity))
};
addItem(idbagNode);
break;
default:
throw new ArgumentOutOfRangeException("AssociationType not handled yet: " + type.ToString());
}
}
}
private void ProcessManyToManyReference(
Entity entity,
DirectedReference directedReference,
Action <object> addItem,
Dictionary <ITable, int> manyToManySameTableProcessingCounts,
string collectionCascade,
string lazy,
string orderByClause,
bool inverse)
{
if (directedReference.FromEndEnabled == false)
{
return;
}
ITable referenceMappedTable = directedReference.Reference.MappedTable();
ITable fromPrimaryMappedTable = EntityMapper.GetPrimaryTable(entity);
ITable toPrimaryMappedTable = EntityMapper.GetPrimaryTable(directedReference.ToEntity);
Cardinality cardinalityPrimary;
Cardinality cardinalityForeign;
IKey mainKey;
IKey associationKey;
ITable associationTable = entity.GetAssociationTable(directedReference.ToEntity, out cardinalityPrimary, out cardinalityForeign, out mainKey, out associationKey);
key keyNode = new key();
List <IColumn> fromInPrimaryKey = new List <IColumn>();
List <IColumn> toInPrimaryKey = new List <IColumn>();
if (fromPrimaryMappedTable == toPrimaryMappedTable)
{
// This many-to-many relationship is to the same table
if (manyToManySameTableProcessingCounts.ContainsKey(toPrimaryMappedTable))
{
int index = manyToManySameTableProcessingCounts[toPrimaryMappedTable];
index++;
fromInPrimaryKey.AddRange(referenceMappedTable.Relationships.Where(t => t.PrimaryTable == fromPrimaryMappedTable).ElementAt(index).PrimaryKey.Columns);
toInPrimaryKey.AddRange(referenceMappedTable.Relationships.Where(t => t.PrimaryTable == toPrimaryMappedTable).ElementAt(index).ForeignKey.Columns);
manyToManySameTableProcessingCounts[toPrimaryMappedTable] = index;
}
else
{
fromInPrimaryKey.AddRange(referenceMappedTable.Relationships.Where(t => t.PrimaryTable == fromPrimaryMappedTable).ElementAt(0).PrimaryKey.Columns);
toInPrimaryKey.AddRange(referenceMappedTable.Relationships.Where(t => t.PrimaryTable == toPrimaryMappedTable).ElementAt(0).ForeignKey.Columns);
manyToManySameTableProcessingCounts.Add(toPrimaryMappedTable, 0);
}
}
else
{
foreach (var coll in referenceMappedTable.Relationships.Where(t => t.PrimaryTable == fromPrimaryMappedTable).Select(r => r.ForeignKey.Columns))
{
foreach (var c in coll)
{
fromInPrimaryKey.Add(c);
}
}
foreach (var coll in referenceMappedTable.Relationships.Where(t => t.PrimaryTable == toPrimaryMappedTable).Select(r => r.ForeignKey.Columns))
{
foreach (var c in coll)
{
toInPrimaryKey.Add(c);
}
}
}
if (fromInPrimaryKey.Count() == 1)
{
keyNode.column1 = fromInPrimaryKey.First().Name.BackTick();
}
else
{
foreach (var columnNode in GetColumnNodes(fromInPrimaryKey))
{
keyNode.AddColumn(columnNode);
}
}
manytomany manyToManyNode = new manytomany();
manyToManyNode.@class = directedReference.ToEntity.Name;
if (toInPrimaryKey.Count() == 1)
{
manyToManyNode.column = toInPrimaryKey.First().Name.BackTick();
}
else
{
foreach (var columnNode in GetColumnNodes(toInPrimaryKey))
{
keyNode.AddColumn(columnNode);
}
}
collectionFetchMode collFetchMode;
if (directedReference.Entity1IsFromEnd)
{
collFetchMode = (collectionFetchMode)Enum.Parse(typeof(collectionFetchMode), directedReference.Reference.GetReferenceEnd1CollectionFetchMode().ToString(), true);
}
else
{
collFetchMode = (collectionFetchMode)Enum.Parse(typeof(collectionFetchMode), directedReference.Reference.GetReferenceEnd2CollectionFetchMode().ToString(), true);
}
AssociationType type = NHCollections.GetAssociationType(directedReference);
switch (type)
{
case AssociationType.None:
Log.WarnFormat("No association type was set on reference {0} for the end {1}. This is usually an error.", directedReference.Reference.Name, directedReference.Entity1IsFromEnd ? "One" : "Two");
return;
case AssociationType.Set:
set setNode = CreateSetNode(directedReference, keyNode, collectionCascade, collFetchMode, lazy, inverse);
setNode.table = referenceMappedTable.Name.BackTick();
setNode.Item = manyToManyNode;
if (orderByClause.Length > 0)
{
setNode.orderby = orderByClause;
}
addItem(setNode);
break;
case AssociationType.Bag:
bag bagNode = CreateBagNode(directedReference, keyNode, collectionCascade, collFetchMode, lazy, inverse);
bagNode.table = referenceMappedTable.Name.BackTick();
bagNode.Item = manyToManyNode;
if (orderByClause.Length > 0)
{
bagNode.orderby = orderByClause;
}
addItem(bagNode);
break;
case AssociationType.Map:
map mapNode = CreateMapNode(directedReference, keyNode, collectionCascade, collFetchMode, lazy, inverse);
mapNode.table = referenceMappedTable.Name.BackTick();
mapNode.Item = new index
{
column1 = NHCollections.GetIndexColumnName(directedReference),
type = NHCollections.GetIndexColumnTypeName(directedReference, toPrimaryMappedTable /*fromPrimaryMappedTable*/)
};
mapNode.Item1 = manyToManyNode;
if (orderByClause.Length > 0)
{
mapNode.orderby = orderByClause;
}
addItem(mapNode);
break;
case AssociationType.List:
list listNode = CreateListNode(directedReference, keyNode, collectionCascade, collFetchMode, lazy, inverse);
listNode.table = referenceMappedTable.Name.BackTick();
listNode.Item = new index
{
column1 = NHCollections.GetIndexColumnName(directedReference),
};
listNode.Item1 = manyToManyNode;
if (orderByClause.Length > 0)
{
listNode.orderby = orderByClause;
}
addItem(listNode);
break;
// case AssociationType.IDBag:
// throw new NotImplementedException(
// string.Format("Have not implemented {0} association type for Many To Many relationships", type));
default:
throw new NotImplementedException("AssociationType not handled yet: " + type.ToString());
}
}