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