Fix for #1176 The query builder was querying with sub_category=0 when sub was not supplied

utils/search/search.go

@@ -142,9 +142,15 @@ func byQueryPostgres(c *gin.Context, pagenum int, countAll bool, withUser bool,
 	if len(search.Category) > 0 {
 		conditionsOr := make([]string, len(search.Category))
 		for key, val := range search.Category {
-			conditionsOr[key] = "(category = ? AND sub_category = ?)"
-			parameters.Params = append(parameters.Params, val.Main)
-			parameters.Params = append(parameters.Params, val.Sub)
+			if val.Main > 0 {
+				conditionsOr[key] = "(category = ?"
+				parameters.Params = append(parameters.Params, val.Main)
+				if val.Sub > 0 {
+					conditionsOr[key] += " AND sub_category = ?"
+					parameters.Params = append(parameters.Params, val.Sub)
+				}
+				conditionsOr[key] += ")"
+			}
 		}
 		conditions = append(conditions, strings.Join(conditionsOr, " OR "))
 	}

utils/search/structs/torrentParam.go

@@ -106,7 +106,9 @@ func (p *TorrentParam) ToFilterQuery() string {
 			if val.IsSubSet() {
 				conditionsOr[key] = "(category: " + strconv.FormatInt(int64(val.Main), 10) + " AND sub_category: " + strconv.FormatInt(int64(val.Sub), 10) + ")"
 			} else {
-				conditionsOr[key] = "(category: " + strconv.FormatInt(int64(val.Main), 10) + ")"
+				if val.Main > 0 {
+					conditionsOr[key] = "(category: " + strconv.FormatInt(int64(val.Main), 10) + ")"
+				}
 			}
 		}
 		query += "(" + strings.Join(conditionsOr, " OR ") + ")"