public override object InternalExecute(Program program)
{
AggregateTable table = new AggregateTable(this, program);
try
{
table.Open();
return(table);
}
catch
{
table.Dispose();
throw;
}
}
public static Aggregate GetOrCreate(Type aggregateType, string aggregateId)
{
string modelName = ModelNameGetter.GetModelName(aggregateType);
Aggregate aggregate;
AggregateTable table = GetTable(modelName);
try{
aggregate = table.GetAggregate(aggregateId);
}
catch (KeyNotFoundException k) {
ConstructorInfo cInfo = aggregateType.GetConstructor(Type.EmptyTypes);
aggregate = (Aggregate)cInfo.Invoke(Type.EmptyTypes);
table.InsertAggregate(aggregateId, aggregate);
}
return(aggregate);
}
public static Value Aggregate(IList <Value> parameters)
{
var validate = Expression.ValidateHelper("Aggregate", parameters, 2, new List <ValueType>()
{
ValueType.Object, ValueType.Object
});
if (validate != null)
{
return(validate);
}
if (!(parameters[0].Object is SimpleTable))
{
return(Value.CreateErrorValue("Aggregate() parameter #1 is not a table"));
}
else if (!(parameters[1].Object is SimpleTable))
{
return(Value.CreateErrorValue("Aggregate() parameter #2 is not a table"));
}
var sourceTable = parameters[0].Object as SimpleTable;
var mapTable = parameters[1].Object as SimpleTable;
try
{
var result = AggregateTable.Execute(sourceTable, mapTable);
if (result.HasError)
{
return(Value.CreateErrorValue(result.ErrorMessage, result.Exception));
}
return(new Value(result.Result));
}
catch (System.Exception e)
{
return(Value.CreateErrorValue("Aggregate() unable to expand table: " + e.ToString(), e));
}
}