private string ExtractField(FieldSelector field, ISelectable item, Selectable root, int index)
{
if (field == null)
{
return(null);
}
var selector = field.ToSelector();
if (selector == null)
{
return(null);
}
object value;
if (selector is EnviromentSelector)
{
var enviromentSelector = selector as EnviromentSelector;
switch (enviromentSelector.Field)
{
case EnviromentFields.Index:
{
value = index;
break;
}
default:
{
value = root.Enviroment(enviromentSelector.Field);
break;
}
}
}
else
{
value = field.Option == FieldOptions.Count
? item.SelectList(selector).Nodes().Count().ToString()
: item.Select(selector)?.GetValue(ConvertToValueOption(field.Option));
}
if (field.Formatters != null && field.Formatters.Count() > 0)
{
foreach (var formatter in field.Formatters)
{
#if DEBUG
try
{
#endif
value = formatter.Formate(value);
#if DEBUG
}
catch (Exception e)
{
Debugger.Log(0, "ERROR", $"ModelExtractor execute formatter failed: {e}");
}
#endif
}
}
return(value?.ToString());
}