private void AddColumns(StringBuilder sb)
{
if (Columns.Count == 0)
{
return;
}
sb.AppendLine();
foreach (gsSelectColumn selCol in Columns)
{
if (selCol is gsCaseColumn)
{
gsCaseColumn caseColumn = selCol as gsCaseColumn;
caseColumn.QueryName = QryName;
sb.Append(caseColumn.ToString());
}
else if (selCol is gsSubQueryColumn)
{
gsSelectQuery subQry = (selCol as gsSubQueryColumn).SubQuery;
subQry.QryName = $"subQry{GetNextID()}";
sb.AppendLine();
sb.AppendLine(subQry.ToString());
sb.Append($"{QryName}.Columns.Add(new SelectColumn(SqlExpression.SubQuery({subQry.QryName}), {selCol.ColumnAlias.Quoted()}));");
}
else
{
sb.Append($"{QryName}.Columns.Add(new SelectColumn({selCol.ToString()}));");
}
sb.AppendLine();
}
}
private void AddBaseTable(StringBuilder sb)
{
sb.AppendLine();
if (FromClause.BaseTable is gsSubQueryFromTerm)
{
gsSelectQuery subQry = (FromClause.BaseTable as gsSubQueryFromTerm).SubQuery;
subQry.QryName = $"subQry{GetNextID()}";
sb.AppendLine();
sb.AppendLine(subQry.ToString());
string subQueryStr = $"FromTerm.SubQuery({subQry.QryName}, {FromClause.BaseTable.TableAlias.Quoted()})";
sb.Append($"{QryName}.FromClause.BaseTable = {subQueryStr};");
}
else
{
sb.Append($"{QryName}.FromClause.BaseTable = {FromClause.BaseTable.ToString()};");
}
sb.AppendLine();
}
