/// <summary>
/// Filters documents where a specific field has a value in them.
/// </summary>
public FilterContainer Exists(string field)
{
IExistsFilter filter = new ExistsFilterDescriptor();
filter.Field = field;
this.SetCacheAndName(filter);
return(this.New(filter, f => f.Exists = filter));
}
/// <summary>
/// Filters documents where a specific field has a value in them.
/// </summary>
public FilterContainer Exists(Expression <Func <T, object> > fieldDescriptor)
{
IExistsFilter filter = new ExistsFilterDescriptor();
filter.Field = fieldDescriptor;
this.SetCacheAndName(filter);
return(this.New(filter, f => f.Exists = filter));
}
