public static IDbSelectable[] ProcessSelection(IDbObject dbObj, IDbObjectFactory factory)
{
var dbList = dbObj as IDbList <DbKeyValue>;
if (dbList != null)
{
var keyVals = dbList;
return(keyVals.SelectMany(kv => ProcessSelection(kv, factory)).ToArray());
}
var obj = dbObj as DbReference;
if (obj != null)
{
var dbRef = obj;
return(new IDbSelectable[] { factory.BuildRefColumn(dbRef, dbRef.RefColumnAlias) });
}
var dbBinary = dbObj as IDbBinary;
if (dbBinary != null && (
dbBinary.Operator == DbOperator.Equal ||
dbBinary.Operator == DbOperator.NotEqual ||
dbBinary.Operator == DbOperator.GreaterThan ||
dbBinary.Operator == DbOperator.GreaterThanOrEqual ||
dbBinary.Operator == DbOperator.LessThan ||
dbBinary.Operator == DbOperator.LessThanOrEqual ||
dbBinary.Operator == DbOperator.Is ||
dbBinary.Operator == DbOperator.IsNot))
{
var dbTrue = factory.BuildConstant(true);
var tuple = Tuple.Create <IDbBinary, IDbObject>(dbBinary, dbTrue);
return(new IDbSelectable[] { factory.BuildCondition(new [] { tuple }, factory.BuildConstant(false)) });
}
var keyValue = dbObj as DbKeyValue;
if (keyValue == null)
{
return new[] { (IDbSelectable)dbObj }
}
;
var selectables = ProcessSelection(keyValue.Value, factory);
foreach (var selectable in selectables)
{
selectable.Alias = keyValue.Key;
}
return(selectables);
}
public static IDbSelectable[] ProcessSelection(IDbObject dbObj, IDbObjectFactory factory)
{
switch (dbObj)
{
case IDbList <DbKeyValue> dbList:
var keyVals = dbList;
return(keyVals.SelectMany(kv => ProcessSelection(kv, factory)).ToArray());
case DbReference obj:
var dbRef = obj;
return(new IDbSelectable[] { factory.BuildRefColumn(dbRef, dbRef.RefColumnAlias) });
case IDbBinary dbBinary when(
dbBinary.Operator == DbOperator.Equal ||
dbBinary.Operator == DbOperator.NotEqual ||
dbBinary.Operator == DbOperator.GreaterThan ||
dbBinary.Operator == DbOperator.GreaterThanOrEqual ||
dbBinary.Operator == DbOperator.LessThan ||
dbBinary.Operator == DbOperator.LessThanOrEqual ||
dbBinary.Operator == DbOperator.Is ||
dbBinary.Operator == DbOperator.IsNot):
var dbTrue = factory.BuildConstant(true);
var tuple = Tuple.Create <IDbBinary, IDbObject>(dbBinary, dbTrue);
return(new IDbSelectable[] { factory.BuildCondition(new [] { tuple }, factory.BuildConstant(false)) });
}
if (!(dbObj is DbKeyValue keyValue))
{
return new[] { (IDbSelectable)dbObj }
}
;
var selectables = ProcessSelection(keyValue.Value, factory);
foreach (var selectable in selectables)
{
selectable.Alias = keyValue.Key;
}
return(selectables);
}
