protected virtual List <Customer> ExecuteQuery(LogicalRuleOperator logicalOperator, params FilterExpression[] expressions)
{
var compositeFilter = new FilterExpressionGroup(typeof(Customer))
{
LogicalOperator = logicalOperator
};
compositeFilter.AddExpressions(expressions);
var predicate = compositeFilter.ToPredicate(true);
var result = _customers.AsQueryable().Where(predicate).Cast <Customer>().ToList();
return(result);
}
public IPagedList <Customer> ProcessFilter(
FilterExpression[] filters,
LogicalRuleOperator logicalOperator,
int pageIndex = 0,
int pageSize = int.MaxValue)
{
Guard.NotNull(filters, nameof(filters));
if (filters.Length == 0)
{
return(new PagedList <Customer>(Enumerable.Empty <Customer>(), 0, int.MaxValue));
}
// TODO: really untracked?
var query = _rsCustomer.TableUntracked.Where(x => !x.Deleted);
FilterExpressionGroup group = null;
if (filters.Length == 1 && filters[0] is FilterExpressionGroup group2)
{
group = group2;
}
else
{
group = new FilterExpressionGroup(typeof(Customer))
{
LogicalOperator = logicalOperator
};
group.AddExpressions(filters);
}
// Create lambda predicate
var predicate = group.ToPredicate(false);
// Apply predicate to query
query = query
.Where(predicate)
.Cast <Customer>()
.OrderByDescending(c => c.CreatedOnUtc);
return(new PagedList <Customer>(query, pageIndex, pageSize));
}