/// <summary>
/// Calls Recompute on each row in the daton
/// </summary>
public void Recompute(DatonDef datondef)
{
var r = RecurPoint.FromDaton(datondef, this);
if (r is RowRecurPoint rr)
{
Recompute(rr);
}
else if (r is TableRecurPoint rt)
{
Recompute(rt);
}
}
/// <summary>
/// determine which cols are not visible
/// </summary>
private List <FieldInfo> GetInvisibleFields(Daton daton, RecurPoint r)
{
var invisibleFields = new List <FieldInfo>();
foreach (var coldef in r.TableDef.Cols)
{
var colLev = FinalLevel(daton, r.TableDef.Name, coldef.Name);
if (!CanView(colLev))
{
invisibleFields.Add(r.TableDef.RowType.GetField(coldef.Name));
}
}
return(invisibleFields);
}
/// <summary>
/// determine which cols are not visible
/// </summary>
private List <ColDef> GetInvisibleCols(Daton daton, RecurPoint r)
{
var invisibles = new List <ColDef>();
foreach (var coldef in r.TableDef.Cols)
{
var colLev = FinalLevel(daton, r.TableDef.Name, coldef.Name);
if (!CanView(colLev))
{
invisibles.Add(coldef);
}
}
return(invisibles);
}
/// <summary>
/// Convert daton to JSON wire format
/// </summary>
public static string ToWire(DataDictionary dbdef, Daton daton, bool compatibleFormat)
{
var datondef = dbdef.FindDef(daton);
var buf = new StringBuilder(1000);
var writerOLD = new StringWriter(buf);
var writer = new JsonTextWriter(writerOLD);
writer.WriteStartObject();
writer.WritePropertyName("key");
writer.WriteValue(daton.Key.ToString());
writer.WritePropertyName("version");
writer.WriteValue(daton.Version);
if (daton is Viewon viewon && !viewon.IsCompleteLoad)
{
writer.WritePropertyName("isComplete");
writer.WriteValue(false);
}
var r = RecurPoint.FromDaton(datondef, daton);
if (compatibleFormat)
{
if (r is TableRecurPoint rt)
{
WriteToCompatibleWire(writer, rt);
}
if (r is RowRecurPoint rr)
{
writer.WritePropertyName(CamelCasify(datondef.MainTableDef.Name));
WriteToCompatibleWire(writer, rr);
}
}
else //dense
{
writer.WritePropertyName("content");
if (r is TableRecurPoint rt)
{
WriteToDenseWire(writer, rt);
}
if (r is RowRecurPoint rr)
{
writer.WriteStartArray();
WriteToDenseWire(writer, rr);
writer.WriteEndArray();
}
}
writer.WriteEndObject();
return(buf.ToString());
}
/// <summary>
/// Modify the given daton by setting fields to null if the user does not have permission to view
/// </summary>
public void HidePrivateParts(Daton daton)
{
var datondef = Dbdef.FindDef(daton);
var recur = RecurPoint.FromDaton(datondef, daton);
if (recur is TableRecurPoint rt)
{
HidePrivateParts(daton, rt);
}
else if (recur is RowRecurPoint rr)
{
//clear out the invisible cols in the single main row
var invisibleFields = GetInvisibleFields(daton, rr);
ClearInvisibleFields(invisibleFields, rr.Row);
HidePrivateParts(daton, rr);
}
}
/// <summary>
/// Validate the persiston and populate Errors in this instance with the problems found.
/// </summary>
public async Task ValidatePersiston(DatonDef datondef, Persiston daton)
{
Errors = new List <string>();
//built-in validation
var r = RecurPoint.FromDaton(datondef, daton);
if (r is RowRecurPoint rr)
{
Validate(rr);
}
else if (r is TableRecurPoint rt)
{
Validate(rt);
}
//custom validation
await daton.Validate(User, message => Errors.Add(message));
}
/// <summary>
/// if persiston was new, figure out new main row's key and set Modified.Key
/// </summary>
private static void AssignPersistonKey(SaveItem item)
{
if (!item.Modified.Key.IsNew)
{
return;
}
var mainTdef = item.DatonDef.MainTableDef;
var r = RecurPoint.FromDaton(item.DatonDef, item.Modified);
if (r is RowRecurPoint rr)
{
object pk = mainTdef.RowType.GetField(mainTdef.PrimaryKeyColName).GetValue(rr.Row);
var pkdef = mainTdef.Cols.Single(c => c.Name == mainTdef.PrimaryKeyColName);
string pkString = Retrovert.FormatRawJsonValue(pkdef, pk);
item.Modified.Key = new PersistonKey(item.Modified.Key.Name, pkString, false);
return;
}
//if reached here, client semantics was unexpected: it should have sent a new persiston only for a daton type
//that defines a single main row; in all other cases the client should have loaded then modified an existing
//persiston, even if it had no rows in it.
throw new Exception("Cannot save a whole-table persiston with a daton-key identifying a primary key");
}
