Add useragent filter

database.go

@@ -81,6 +81,7 @@ type ViewsRequest struct {
 	to   string
 	url  string
 	ref  string
+	ua   string
 }
 
 type RequestResultRow struct {
@@ -161,6 +162,7 @@ func (request *ViewsRequest) buildFilter() (filters string, parameters []sql.Nam
 		request.buildDateTimeFilter(&parameters),
 		request.buildUrlFilter(&parameters),
 		request.buildRefFilter(&parameters),
+		request.buildUseragentFilter(&parameters),
 	} {
 		if len(filter) > 0 {
 			allFilters = append(allFilters, filter)
@@ -202,3 +204,11 @@ func (request *ViewsRequest) buildRefFilter(namedArg *[]sql.NamedArg) (refFilter
 	}
 	return
 }
+
+func (request *ViewsRequest) buildUseragentFilter(namedArg *[]sql.NamedArg) (refFilter string) {
+	if len(request.ua) > 0 {
+		*namedArg = append(*namedArg, sql.Named("ua", "%"+request.ua+"%"))
+		refFilter = "useragent like :ua"
+	}
+	return
+}

main.go

@@ -117,6 +117,7 @@ func requestStats(w http.ResponseWriter, r *http.Request) {
 		to:   queries.Get("to"),
 		url:  queries.Get("url"),
 		ref:  queries.Get("ref"),
+		ua:   queries.Get("ua"),
 	})
 	if e != nil {
 		fmt.Println("Database request failed:", e)