public static DbDataGraph GetDbModelGraph(string connString)
{
using (var dbInfo = new DbInfo(connString))
//using (var dbInfo = new DbInfoSimple(connString))
{
return(GetDbModelGraph(dbInfo));
}
}
private static DbDataGraph GetDbModelGraph(DbInfo dbInfo)
{
var dbGraph = new DbDataGraph();
// add vertexes (tables)
var tables = dbInfo.ListSchemaTableNames();
dbGraph.AddVertexRange(tables.Select(t => new DbDataVertex(tableOwner: t.Item1, tableName: t.Item2)));
// add edges (FKs)
var vertices = dbGraph.Vertices.ToDictionary(v => $"({v.TableOwner}, {v.TableName})", v => v);
foreach (var vertice in dbGraph.Vertices)
{
var tableFkEdgess = dbInfo.ReadTableFks(vertice.TableOwner, vertice.TableName)
.Select(fk => new DbDataEdge(vertices[fk.ToString()], vertice));
dbGraph.AddEdgeRange(tableFkEdgess);
}
return(dbGraph);
}
