public RelationshipGraph(AMO.Database tabularDatabase)
{
foreach (TableInfo tableInfo in AMO2Tabular.TablesEnumerateFull(tabularDatabase))
{
using (AMO.MeasureGroup currentMeasureGroup = tabularDatabase.Cubes[0].MeasureGroups[tableInfo.DataSourceName])
{
foreach (AMO.MeasureGroupDimension measureGroupDimension in currentMeasureGroup.Dimensions)
{
if (measureGroupDimension is AMO.ReferenceMeasureGroupDimension)
{
AMO.ReferenceMeasureGroupDimension referencedTable = measureGroupDimension as AMO.ReferenceMeasureGroupDimension;
string foreignTableId = referencedTable.IntermediateCubeDimensionID;
string foreignColumnId = referencedTable.IntermediateGranularityAttributeID;
string primaryKeyTableId = referencedTable.CubeDimensionID;
string primaryKeyColumnId = string.Empty;
foreach (AMO.MeasureGroupAttribute attribute in referencedTable.Attributes)
{
if (attribute.Type == AMO.MeasureGroupAttributeType.Granularity)
{
primaryKeyColumnId = attribute.AttributeID;
break;
}
}
FullName foreignKeyEnd = new FullName(foreignTableId, foreignColumnId);
FullName primaryKeyEnd = new FullName(primaryKeyTableId, primaryKeyColumnId);
RelationshipPair relationship = new RelationshipPair(primaryKeyEnd, foreignKeyEnd);
AddForeignKeyUpPair(primaryKeyTableId, relationship);
AddPrimaryKeyDownPair(foreignTableId, relationship);
}
}
}
}
}
public void AddPrimaryKeyDownPair(string tableId, RelationshipPair relationshipPair)
{
if (!graph.ContainsKey(tableId))
{
AddTableNode(tableId);
}
if (!graph[tableId].PrimaryKeyDown.Contains(relationshipPair))
{
graph[tableId].PrimaryKeyDown.Add(relationshipPair);
}
}
public void AddForeignKeyUpPair(string tableId, RelationshipPair relationshipPair)
{
if (!graph.ContainsKey(tableId))
{
AddTableNode(tableId);
}
if (!graph[tableId].ForeignKeyUp.Contains(relationshipPair))
{
graph[tableId].ForeignKeyUp.Add(relationshipPair);
}
}
private static void RelationshipAddReferenceMeasureGroupDimension(AMO.Database tabularDatabase,
string currentMeasureGroupId,
RelationshipPair relationshipPair,
string relationshipId = null)
{
string foreignTableId = relationshipPair.ForeignKeyEnd.TableId;
string foreignColumnId = relationshipPair.ForeignKeyEnd.ColumnId;
string pkTableId = relationshipPair.PrimaryKeyEnd.TableId;
string pkColumnId = relationshipPair.PrimaryKeyEnd.ColumnId;
// Creating the ReferenceMeasureGroupDimension that defines the 'Activeness' of a relationship
using (AMO.Cube modelCube = tabularDatabase.Cubes[0])
using (AMO.MeasureGroup currentMG = modelCube.MeasureGroups[currentMeasureGroupId])
using (AMO.ReferenceMeasureGroupDimension newReferenceMGDim = new AMO.ReferenceMeasureGroupDimension())
{
newReferenceMGDim.CubeDimensionID = pkTableId;
newReferenceMGDim.IntermediateCubeDimensionID = foreignTableId;
newReferenceMGDim.IntermediateGranularityAttributeID = foreignColumnId;
// Replicating attributes (columns) from dimension
foreach (AMO.CubeAttribute PKAttribute in modelCube.Dimensions[pkTableId].Attributes)
{
using (AMO.MeasureGroupAttribute PKMGAttribute = newReferenceMGDim.Attributes.Add(PKAttribute.AttributeID))
using (AMO.DataItem dataItem = new AMO.DataItem(pkTableId, PKAttribute.AttributeID, PKAttribute.Attribute.KeyColumns[0].DataType))
using (AMO.ColumnBinding columnBinding = new AMO.ColumnBinding(pkTableId, PKAttribute.AttributeID))
{
PKMGAttribute.KeyColumns.Add(dataItem);
PKMGAttribute.KeyColumns[0].Source = columnBinding;
}
}
newReferenceMGDim.Attributes[pkColumnId].Type = AMO.MeasureGroupAttributeType.Granularity;
// If relationship is not null or empty then this is a direct relationship and
// has to have Materialization.Regular
if (!relationshipId.IsNullOrEmptyOrWhitespace())
{
newReferenceMGDim.Materialization = AMO.ReferenceDimensionMaterialization.Regular;
newReferenceMGDim.RelationshipID = relationshipId;
}
else
{
newReferenceMGDim.Materialization = AMO.ReferenceDimensionMaterialization.Indirect;
}
// Adding the ReferenceMeasureGroupDimension to the measure group
currentMG.Dimensions.Add(newReferenceMGDim);
}
}
