private void VerifyScalarSourceModels(IModels containsBy, Column sourceColumn, string exceptionParamName)
{
if (sourceColumn.ScalarSourceModels.Count == 0 && sourceColumn.GetExpression() == null)
{
throw new ArgumentException(DiagnosticMessages.Column_EmptyScalarSourceModels, exceptionParamName);
}
foreach (var model in sourceColumn.ScalarSourceModels)
{
if (!containsBy.Contains(model))
{
throw new ArgumentException(DiagnosticMessages.DbQueryBuilder_InvalidScalarSourceModel(model), exceptionParamName);
}
}
}
private void MergeComputation(Column computationColumn)
{
Debug.Assert(computationColumn.IsExpression);
if (_computationManager == null)
{
_computationManager = new ComputationManager();
}
var baseColumns = computationColumn.GetExpression().BaseColumns;
foreach (var baseColumn in baseColumns)
{
MergeComputation(baseColumn, computationColumn, true);
}
}
private void MergeComputation(Column baseColumn, Column computationColumn, bool isDirect)
{
if (baseColumn == computationColumn)
{
throw new InvalidOperationException(DiagnosticMessages.ComputationManager_CircularComputation(baseColumn.Name));
}
if (baseColumn.ParentModel != null)
{
_computationManager.AddDependency(baseColumn, computationColumn, isDirect);
isDirect = false;
}
if (baseColumn.IsExpression)
{
var baseBaseColumns = baseColumn.GetExpression().BaseColumns;
foreach (var baseBaseColumn in baseBaseColumns)
{
MergeComputation(baseBaseColumn, computationColumn, isDirect);
}
}
}
