private IEnumerable <IDictionary <string, object> > RunHavingClauses(IEnumerable <IDictionary <string, object> > source)
{
var havingClauses = _clauses.OfType <HavingClause>().ToList();
if (havingClauses.Count == 0)
{
return(source);
}
var selectClause = _clauses.OfType <SelectClause>().FirstOrDefault();
List <SimpleReference> selectReferences;
if (selectClause != null)
{
selectReferences = selectClause.Columns.ToList();
}
else
{
selectReferences = new List <SimpleReference> {
new AllColumnsSpecialReference()
};
}
foreach (var clause in havingClauses)
{
var criteria = HavingToWhere(clause.Criteria, selectReferences);
source = new SelectClauseHandler(new SelectClause(selectReferences)).Run(source).ToList();
source = new WhereClauseHandler(_mainTableName, new WhereClause(criteria)).Run(source);
source = source.Select(d => d.Where(kvp => !kvp.Key.StartsWith(AutoColumnPrefix)).ToDictionary(kvp => kvp.Key, kvp => kvp.Value));
}
return(source);
}
private IEnumerable <IDictionary <string, object> > RunWhereClauses(IEnumerable <IDictionary <string, object> > source)
{
foreach (var whereClause in _clauses.OfType <WhereClause>())
{
source = new WhereClauseHandler(_mainTableName, whereClause).Run(source);
}
return(source);
}
