public WhereClause(
string formula,
List <Entity> fields,
Entity[] fieldsThenNonAggregatedFormulas)
{
_formula = EntityFormula.CreateEvaluator(formula, fields);
var usedIndexes = _formula.GetVariableIndexes();
IsBasedOnAggregation = EntityFormula.IsEvaluatorBasedOnAggregation(usedIndexes, fields);
if (IsBasedOnAggregation)
{
return;
}
var usedResultIndexes = usedIndexes.Where(_ => _ < fields.Count).Select(_ => fields[_].ResultSetIndex).ToList();
UsedEntities = new List <Entity>();
UnusedEntities = fieldsThenNonAggregatedFormulas.ToList();
foreach (var ri in usedResultIndexes)
{
use(UnusedEntities.Single(_ => _.ResultSetIndex == ri));
}
foreach (var entity in UsedEntities.ToList())
{
foreach (var ri in entity.ReliesOnIndexes)
{
use(fields.Single(_ => _.ResultSetIndex == ri));
}
}
EntityClass.SortWithFormulasLast(UsedEntities);
EntityClass.SortWithFormulasLast(UnusedEntities);
}
public override void ParentInitialized(EntityClass parent, int index)
{
Evaluator = CreateEvaluator(Spec.formula, parent.Fields);
FieldType = Evaluator.ResultingType is RpnItemOperandNumeric
? typeof(double)
: typeof(string);
var variableIndexes = Evaluator.GetVariableIndexes();
ReliesOnIndexes.UnionWith(variableIndexes);
_isBasedOnAggregation = IsEvaluatorBasedOnAggregation(variableIndexes, parent.Fields);
}
