public static IQueryable <TQuery> FilterMutatorPager <TQuery, TSearch>(
this IQueryable <TQuery> collection,
SearchFieldMutators <TQuery, TSearch> searchRules,
TSearch modelSearch) where TSearch : IFilterMutatorPager
{
return(searchRules.Aggregate(collection, (current, mutator) => mutator.Apply(current, modelSearch)).Skip(modelSearch.ItemsToSkip).Take(modelSearch.ItemsPerPage));
}
public static IQueryable <TQuery> FilterMutator <TQuery, TSearch>(
this IQueryable <TQuery> collection,
SearchFieldMutators <TQuery, TSearch> searchRules,
TSearch modelSearch)
{
return(searchRules.Aggregate(collection, (current, mutator) => mutator.Apply(current, modelSearch)));
}
public void Test2()
{
var searchRules = new SearchFieldMutators <User, SearchFieldVM>();
searchRules.Add(
test => !string.IsNullOrWhiteSpace(test.InputText),
(query, search) => query.Where(x => x.Name.Contains(search.InputText)));
searchRules.Add(
test => test.MinAge > 0,
(query, search) => query.Where(x => x.Age >= search.MinAge));
searchRules.Add(
test => test.MaxAge > 0,
(query, search) => query.Where(x => x.Age <= search.MaxAge));
SearchFieldVM modelSearch = new SearchFieldVM()
{
InputText = null,
MinAge = 17,
MaxAge = 19
};
var collection = userRepository.AsQueryable();
collection = collection.FilterMutator <User, SearchFieldVM>(searchRules, modelSearch);
Assert.Equal(2, collection.Count());
}
