Azavea.Open.DAO.SQL.SqlDaLayer.GroupBysToEndOfQuery C# (CSharp) Method

        public virtual void GroupBysToEndOfQuery(SqlDaQuery query,
            ICollection<AbstractGroupExpression> groupExpressions, ClassMapping mapping)
        {
            if (groupExpressions.Count > 0)
            {
                query.Sql.Append(" GROUP BY ");
            }
            bool first = true;
            foreach (AbstractGroupExpression expression in groupExpressions)
            {
                if (first)
                {
                    first = false;
                }
                else
                {
                    query.Sql.Append(", ");
                }
                if (expression is MemberGroupExpression)
                {
                    query.Sql.Append(
                        mapping.AllDataColsByObjAttrs[((MemberGroupExpression) expression).MemberName]);
                }
                else
                {
                    throw new ArgumentException(
                        "Group expression '" + expression + "' is an unsupported type.",
                        "groupExpressions");
                }
            }
        }