private bool checkDelSch(PSchema pSchema)
{
var listRel = RawDatabaseService.Instance().getRelByIdSch(pSchema);
if (listRel.Count == 0 || listRel is null)
{
return(true);
}
return(false);
}
public static RawDatabaseService Instance()
{
if (instance == null)
{
instance = new RawDatabaseService();
}
{
lock (syncLock)
{
instance = new RawDatabaseService();
}
}
return(instance);
}
public PTuple insertEmptyTuple(PRelation pRelation, PAttribute pri, String IdTuple)
{
var relation = new PRelation()
{
id = pRelation.id
};
var tupID = String.Empty;
//insert empty tuple
try
{
var tuple = RawDatabaseService.Instance().GetTuplebyId(ref relation, tupID);
tuple.valueSet[$"{relation.relationName.ToLower()}.{pri.AttributeName.ToLower()}"] = new List <String>()
{
"{ " + IdTuple + " }"
};
foreach (var key in tuple.valueSet.Keys.ToList())
{
var atr = key.Substring(key.IndexOf(".") + 1);
var Pri = $"{relation.relationName.ToLower()}.{pri.AttributeName.ToLower()}";
if (!atr.Equals(ContantCls.emlementProb, StringComparison.CurrentCultureIgnoreCase) &&
key != Pri)
{
tuple.valueSet[key] = new List <String>()
{
"{ Insert Data }"
};
}
}
PTupleService.Instance().Insert(tuple, relation);
return(tuple);
}
catch (Exception Ex)
{
return(null);
}
}
