internal bool CreateTestRelation(int tx1Index, int tx2Index, Pairing pairing)
{
if (IsInvalidTableIndex(tx1Index))
{
return(false);
}
if (IsInvalidTableIndex(tx2Index))
{
return(false);
}
var rx = new RelationX_RowX_RowX(Get <RelationXRoot>());
rx.Pairing = pairing;
rx.Initialize(NR, NR);
var tx1 = Get <TableXRoot>().Items[tx1Index];
var tx2 = Get <TableXRoot>().Items[tx2Index];
Get <Relation_Store_ChildRelation>().SetLink(tx1, rx);
Get <Relation_Store_ParentRelation>().SetLink(tx2, rx);
for (int i = 0; i < NR; i++)
{
rx.SetLink(tx1.Items[i], tx2.Items[i]);
}
return(true);
bool IsInvalidTableIndex(int txI) => (txI < 0) ? true : (txI < Get <TableXRoot>().Count) ? false : true;
}
private void AddNewChildRelation(Root root)
{
var rx = new RelationX_RowX_RowX(root.Get <RelationXRoot>(), true);
// the data root implements undo/redo functionality
ItemCreated.Record(root, rx);
ItemLinked.Record(root, root.Get <Relation_StoreX_ChildRelation>(), TX, rx);
ChildDelta -= 2;
}
public void ReadData(DataReader r, Item[] items)
{
var N = r.ReadInt32();
if (N < 0)
{
throw new Exception($"Invalid count {N}");
}
SetCapacity(N);
var fv = r.ReadByte();
if (fv == 1)
{
for (int i = 0; i < N; i++)
{
var index = r.ReadInt32();
if (index < 0 || index >= items.Length)
{
throw new Exception($"RelationXStore ReadData, invalid index {index}");
}
var rx = new RelationX_RowX_RowX(this);
items[index] = rx;
var b = r.ReadByte();
if ((b & B1) != 0)
{
rx.SetState(r.ReadUInt16());
}
if ((b & B2) != 0)
{
rx.Name = Value.ReadString(r);
}
if ((b & B3) != 0)
{
rx.Summary = Value.ReadString(r);
}
if ((b & B4) != 0)
{
rx.Description = Value.ReadString(r);
}
if ((b & B5) != 0)
{
rx.Pairing = (Pairing)r.ReadByte();
}
var keyCount = ((b & B6) != 0) ? r.ReadInt32() : 0;
var valCount = ((b & B6) != 0) ? r.ReadInt32() : 0;
rx.Initialize(keyCount, valCount);
}
}
else
{
throw new Exception($"RelationXStore ReadData, unknown format version: {fv}");
}
}
internal void SetRelationName(RelationX_RowX_RowX rel, string value)
{
var relation_Store_ChildRelation = Get <Relation_Store_ChildRelation>();
var relation_Store_ParentRelation = Get <Relation_Store_ParentRelation>();
var childName = BlankName;
var parentName = BlankName;
if (relation_Store_ParentRelation.TryGetParent(rel, out Store childTable))
{
childName = childTable.Name;
}
if (relation_Store_ChildRelation.TryGetParent(rel, out Store parentTable))
{
parentName = parentTable.Name;
}
StringBuilder sb = new StringBuilder(value);
sb.Replace(parentName + parentNameSuffix, "");
sb.Replace(childName + childNameSuffix, "");
sb.Replace(identitySuffix, "");
rel.Name = sb.ToString();
}
internal Model_6A7_ChildRelation(Model_6B3_ChildRelationList owner, RowX item, Relation rel) : base(owner, item)
{
_relation_RowX_RowX = rel as RelationX_RowX_RowX;
}
internal Model_6A8_ParentRelation(Model_6B4_ParentRelationList owner, RowX item, Relation rel) : base(owner, item)
{
_relation_RowX_RowX = rel as RelationX_RowX_RowX;
}