internal WSFilter Reduce()
{
WSCombineFilter cFilter = new WSCombineFilter(Mode, Negate);
if (!IsEmpty)
{
foreach (WSFilter child in this)
{
WSFilter reduced = (child is WSCombineFilter) ? ((WSCombineFilter)child).Reduce() : child;
if (reduced != null)
{
if (reduced is WSCombineFilter && ((WSCombineFilter)reduced).Any() && ((WSCombineFilter)reduced).Mode == Mode && !((WSCombineFilter)reduced).Negate)
{
cFilter.SaveRange(((WSCombineFilter)reduced));
}
else
{
cFilter.Save(reduced);
}
}
}
}
return(!cFilter.Any() ? null : (cFilter.Count == 1 && !cFilter.Negate) ? cFilter[0] : cFilter);
}
public override WSFilter GetFieldFilter(MetaFunctions CFunc, WSTableParam param, Expression parent, int level, string state = null, bool?negate = null)
{
try
{
WSCombineFilter filter = new WSCombineFilter(WSCombineFilter.SQLMode.AndAlso);
filter.SaveRange(Value.Select(x => x.GetFieldFilter(CFunc, param, parent, level, state, negate)).ToList()); /*DONT FORVARD 'negate' parameter to avoid complicatency*/
return(filter.Any() ? (filter.Count == 1 && !filter.Negate) ? filter.FirstOrDefault() : filter : null);
}
catch (Exception e) { WSStatus status = WSStatus.NONE.clone(); CFunc.RegError(GetType(), e, ref status); }
return(null);
}
public override WSFilter GetOptionFilter(MetaFunctions CFunc, Expression parent, int level, string state = null, bool?negate = null)
{
try
{
WSCombineFilter filter = new WSCombineFilter(WSCombineFilter.SQLMode.OrElse, negate);
filter.SaveRange(Value.Select(x => x.GetOptionFilter(CFunc, parent, level, state, null)).ToList());
return(filter.Any() ? (filter.Count == 1 && !filter.Negate) ? filter.FirstOrDefault() : filter : null);
}
catch (Exception e) { WSStatus status = WSStatus.NONE.clone(); CFunc.RegError(GetType(), e, ref status); }
return(null);
}