func (this *QueryBuilder) Union(query *db.Query) {
unions := query.GetUnions()
for _, u := range unions {
this.unionPart.Add(" UNION ")
if u.All {
this.unionPart.Add("ALL ")
}
this.unionPart.Add(this.translator.GetSqlForQuery(u.Query))
}
}
func (this *GenericTranslator) GetSqlForQuery(query *db.Query) string {
proc := this.CreateQueryProcessor(query)
// SELECT COLUNAS
sel := tk.NewStrBuffer()
sel.Add("SELECT ")
if query.IsDistinct() {
sel.Add("DISTINCT ")
}
sel.Add(proc.ColumnPart())
// FROM
sel.Add(" FROM ", proc.FromPart())
// JOINS
sel.Add(proc.JoinPart())
// WHERE - conditions
if query.GetCriteria() != nil {
sel.Add(" WHERE ", proc.WherePart())
}
// GROUP BY
if len(query.GetGroupBy()) != 0 {
sel.Add(" GROUP BY ", proc.GroupPart())
}
// HAVING
if query.GetHaving() != nil {
sel.Add(" HAVING ", proc.HavingPart())
}
// UNION
if len(query.GetUnions()) != 0 {
sel.Add(proc.UnionPart())
}
// ORDER
if len(query.GetOrders()) != 0 {
sel.Add(" ORDER BY ", proc.OrderPart())
}
sql := this.overrider.PaginateSQL(query, sel.String())
return sql
}