/// <summary>
/// Filters documents where a specific field has no value in them.
/// </summary>
public FilterContainer Missing(string field, Action <MissingFilterDescriptor> selector = null)
{
var mf = new MissingFilterDescriptor();
if (selector != null)
{
selector(mf);
}
IMissingFilter filter = mf;
filter.Field = field;
this.SetCacheAndName(filter);
return(this.New(filter, f => f.Missing = filter));
}
/// <summary>
/// Filters documents where a specific field has no value in them.
/// </summary>
public FilterContainer Missing(Expression <Func <T, object> > fieldDescriptor, Action <MissingFilterDescriptor> selector = null)
{
var mf = new MissingFilterDescriptor();
if (selector != null)
{
selector(mf);
}
IMissingFilter filter = mf;
filter.Field = fieldDescriptor;
this.SetCacheAndName(filter);
return(this.New(filter, f => f.Missing = filter));
}
public virtual void Visit(IMissingFilter filter)
{
Write("missing");
}
public virtual void Visit(IMissingFilter filter)
{
Write("missing");
}
public virtual void Visit(IMissingFilter customFiltersScore)
{
}
public virtual void Visit(IMissingFilter customFiltersScore)
{
}
