private string TranslatePredicates(out int?queryId)
{
if (_predicates.Count == 0)
{
queryId = null;
return(string.Empty);
}
Expression expression;
if (_predicates.Count == 1)
{
expression = _predicates.First();
}
else
{
expression = Expression.And(_predicates[0], _predicates[1]);
for (var predicateIndex = 2; predicateIndex < _predicates.Count; predicateIndex++)
{
expression = Expression.And(expression, _predicates[predicateIndex]);
}
}
expression = PredicateOperandAligner.Align(expression);
expression = PredicateDenormalizer.Denormalize(expression);
expression = ConditionalNullRemoverVisitor.RemoveReferenceTypeNullChecks(expression);
expression = ODataExpressionWithNullableFieldVisitor.StripAwayOuterTrueCheck(expression);
expression = WildcardInserter.Insert(expression);
if (_ncoreVersion.SupportFieldQuoting())
{
expression = ConstantQuotifier.Quotify(expression);
}
return(PredicateTranslator.Translate(expression, out queryId));
}
public static Expression StripAwayOuterTrueCheck(Expression expression)
{
var visitor = new ODataExpressionWithNullableFieldVisitor();
return(visitor.Visit(expression));
}