/// <summary>
/// The GetHackerNewsItemExpressionSort.
/// </summary>
/// <param name="expressionBuilder">The expressionBuilder<see cref="LambdaExpressionBuilder{HackerNewsItem}"/>.</param>
/// <param name="orderByField">The orderByField<see cref="HackerNewsFieldEnum"/>.</param>
/// <param name="orderByFieldDesc">The orderByFieldDesc<see cref="bool"/>.</param>
/// <returns>The <see cref="Expression{Func{HackerNewsItem, object}}"/>.</returns>
private Expression <Func <HackerNewsItem, object> > GetHackerNewsItemExpressionSort(LambdaExpressionBuilder <HackerNewsItem> expressionBuilder, HackerNewsFieldEnum orderByField, bool orderByFieldDesc)
{
QuerySort querySort = new QuerySort
{
PropertyPath = orderByField.GetDescription(),
Desc = orderByFieldDesc
};
return(expressionBuilder.BuildQuerySortingExpression(querySort));
}
/// <summary>
/// The GetHackerNewsItemExpressionFilter.
/// </summary>
/// <param name="expressionBuilder">The expressionBuilder<see cref="LambdaExpressionBuilder{HackerNewsItem}"/>.</param>
/// <param name="filterField">The filterField<see cref="HackerNewsFieldEnum"/>.</param>
/// <param name="filterOperation">The filterOperation<see cref="HackerNewsFilterOperationEnum"/>.</param>
/// <returns>The <see cref="Expression{Func{HackerNewsItem, bool}}"/>.</returns>
private Expression <Func <HackerNewsItem, bool> > GetHackerNewsItemExpressionFilter(LambdaExpressionBuilder <HackerNewsItem> expressionBuilder, HackerNewsFieldEnum filterField, HackerNewsFilterOperationEnum filterOperation)
{
IList <QueryFilter> queryFilterList = new List <QueryFilter>();
var queryFilter = new QueryFilter
{
PropertyPath = filterField.GetDescription(),
};
if (filterOperation == HackerNewsFilterOperationEnum.MoreThanFiveWords)
{
queryFilter.Operator = LambdaExpressionBuilder.Enums.OperatorEnum.GreaterThan;
queryFilter.PropertyValue = "5";
}
if (filterOperation == HackerNewsFilterOperationEnum.MoreThanOrEqualToFiveWords)
{
queryFilter.Operator = LambdaExpressionBuilder.Enums.OperatorEnum.GreaterThanOrEqualTo;
queryFilter.PropertyValue = "5";
}
if (filterOperation == HackerNewsFilterOperationEnum.LessThanFiveWords)
{
queryFilter.Operator = LambdaExpressionBuilder.Enums.OperatorEnum.LessThan;
queryFilter.PropertyValue = "5";
}
if (filterOperation == HackerNewsFilterOperationEnum.LessThanOrEqualToFiveWords)
{
queryFilter.Operator = LambdaExpressionBuilder.Enums.OperatorEnum.LessThanOrEqualTo;
queryFilter.PropertyValue = "5";
}
queryFilterList.Add(queryFilter);
return(expressionBuilder.BuildQueryFilteringExpression(queryFilterList));
}