public static bool ValidateSelection(PCAxis.Paxiom.IPXModelBuilder builder, List <PCAxis.Paxiom.Selection> selections)
{
//Check that all mandatory variables has at least one value selected
var mandatoryVariables = builder.Model.Meta.Variables.Where(v => !v.Elimination);
foreach (var v in mandatoryVariables)
{
var selection = selections.FirstOrDefault(s => s.VariableCode == v.Code);
if (selection == null)
{
return(false);
}
if (selection.ValueCodes.Count == 0)
{
return(false);
}
}
return(true);
}
public static PCAxis.Paxiom.Selection SelectAggregation(Variable variable, Query query, PCAxis.Paxiom.IPXModelBuilder builder)
{
GroupingIncludesType aggType;
string agg;
if (!PCAxis.Query.QueryHelper.TryParseAggregationAndType(query.Selection.Filter, out agg, out aggType))
{
throw new Exception(); //TODO could not parse aggregation
}
var aggInfo = variable.GetGroupingInfoById(agg);
if (aggInfo == null)
{
throw new Exception(); //TODO no such aggregation
}
builder.ApplyGrouping(variable.Code, aggInfo, aggType);
var v = builder.Model.Meta.Variables.First(x => x.Code == variable.Code);
return(SelectItem(v, query));
}
public static PCAxis.Paxiom.Selection SelectValueSet(Variable variable, Query query, PCAxis.Paxiom.IPXModelBuilder builder)
{
if (!query.Selection.Filter.StartsWith("vs:"))
{
throw new Exception(); //TODO it must be an aggregation
}
string vs = query.Selection.Filter.Substring(3);
var vsInfo = variable.GetValuesetById(vs);
if (vsInfo == null)
{
throw new Exception(); //TODO no such aggregation
}
builder.ApplyValueSet(variable.Code, vsInfo);
var v = builder.Model.Meta.Variables.First(x => x.Code == variable.Code);
return(SelectItem(v, query));
}
public static List <PCAxis.Paxiom.Selection> BuildSelections(this PCAxis.Paxiom.IPXModelBuilder builder, TableQuery tableQuery)
{
//Check to see that the variable exists
int c = builder.Model.Meta.Variables.Where(var => tableQuery.Query.Select(q => q.Code).Contains(var.Code)).ToArray().Length;
if (tableQuery.Query.Length > c)
{
throw new ArgumentException("Variable is not defined");
}
var selections = new List <PCAxis.Paxiom.Selection>();
foreach (var variable in builder.Model.Meta.Variables)
{
PCAxis.Paxiom.Selection selection = new PCAxis.Paxiom.Selection(variable.Code);
var query = tableQuery.Query.SingleOrDefault(q => q.Code == variable.Code);
if (query != null)
{
// Process filters
if (query.Selection.Filter.ToLower() == "all") // All
{
selection = QueryHelper.SelectAll(variable, query);
}
else if (query.Selection.Filter.ToLower() == "top") // Top
{
selection = QueryHelper.SelectTop(variable, query);
}
else if (PCAxis.Query.QueryHelper.IsAggregation(query.Selection.Filter))
{
selection = QueryHelper.SelectAggregation(variable, query, builder);
}
else if (query.Selection.Filter.StartsWith("vs:", StringComparison.InvariantCultureIgnoreCase))
{
selection = QueryHelper.SelectValueSet(variable, query, builder);
}
else
{
// Assume item
selection = QueryHelper.SelectItem(variable, query);
}
}
else
{
// Variable not specified in query
if (!variable.Elimination)
{
selection = PCAxis.Paxiom.Selection.SelectAll(variable);
}
}
if (selection != null)
{
selections.Add(selection);
}
else
{
//The user as requested an non vaild selection
return(null);
}
}
if (!ValidateSelection(builder, selections))
{
return(null);
}
return(selections);
}
