public static IQueryable <T> ApplySort <T>(this IQueryable <T> query, QueryCriteria criteria)
{
var sortBy = criteria.SortBy;
var sortDirection = criteria.SortDirection;
if (sortBy == null || typeof(T).GetProperty(sortBy, BindingFlags.Public | BindingFlags.IgnoreCase | BindingFlags.Instance) == null)
{
var property = typeof(T).GetProperties().FirstOrDefault(p => p.IsDefined(typeof(SortAttribute)));
if (property != null)
{
var attribute = property.GetCustomAttribute <SortAttribute>() !;
sortBy = property.Name;
sortDirection = attribute.SortDirection;
}
}
if (sortBy == null)
{
return(query);
}
return(query.OrderBy(sortBy, sortDirection));
}
public static IQueryable <T> ApplyPreFilters <T>(this IQueryable <T> query, QueryCriteria criteria) => query.ApplyFilters(criteria.PreFilters, true);
public static IQueryable <T> ApplyPostFilters <T>(this IQueryable <T> query, QueryCriteria criteria) => query.ApplyFilters(criteria.PostFilters, false);
public static IQueryable <T> ApplyAllFilters <T>(this IQueryable <T> query, QueryCriteria criteria) => query.ApplyPreFilters(criteria).ApplyPostFilters(criteria);