public override void VisitWhereClause(WhereClause whereClause, QueryModel queryModel, int index)
{
// the predicate here is not a lambda; it is just the body of the Where() lambda
var oDataFilterExpression = _filterExpressionTranslator.Translate(whereClause.Predicate);
_query.FilterPredicate = ODataQueryPart.Filter(oDataFilterExpression);
base.VisitWhereClause(whereClause, queryModel, index);
}
protected override FilterQueryPart Parse(string parameterValue)
{
var tokens = _regularExpressionTableLexer.Tokenize(parameterValue);
var result = ShuntingYardAlgorithm(tokens);
var builderStrategy = new FilterExpressionParserStrategy();
var filterExpression = builderStrategy.BuildExpression(result);
return(ODataQueryPart.Filter(filterExpression));
}
public void Translate_TestIntEqualsThree_ReturnsOneResult()
{
var left = FilterExpression.MemberAccess("TestInt");
var right = FilterExpression.Constant(3);
var filterExpression = FilterExpression.Binary(left, FilterExpressionOperator.Equal, right);
var query = new ODataQuery
{
FilterPredicate = ODataQueryPart.Filter(filterExpression)
};
var expression = _translator.Translate <TestModel>(query);
var fn = (Func <IQueryable <TestModel>, IQueryable <TestModel> >)expression.Compile();
var result = fn(_source).ToList();
Assert.That(result.Count, Is.EqualTo(1));
Assert.That(result[0].TestInt, Is.EqualTo(3));
}
