Added version parameter for route validate and generate sql functions

Author: romanoff

main.go

@@ -45,7 +45,7 @@ func handler(route *Route) func(http.ResponseWriter, *http.Request, httprouter.P
 			urlParams[urlParam.Key] = urlParam.Value
 		}
 		params, err := getRequestParams(r, urlParams)
-		sql, err := route.Sql(params)
+		sql, err := route.Sql(params, 0)
 		if err != nil && sql != "" {
 			w.WriteHeader(http.StatusBadRequest)
 			fmt.Fprint(w, sql)

route.go

@@ -20,7 +20,13 @@ type Route struct {
 	SqlTemplate *template.Template
 }
 
-func (self *Route) validate(params map[string]interface{}) (string, error) {
+type RouteVersion struct {
+	Version     int
+	Schema      *gojsonschema.Schema
+	SqlTemplate *template.Template
+}
+
+func (self *Route) validate(params map[string]interface{}, version int) (string, error) {
 	if self.Schema == nil {
 		return "", nil
 	}
@@ -43,9 +49,9 @@ func (self *Route) validate(params map[string]interface{}) (string, error) {
 	return "", nil
 }
 
-func (self *Route) Sql(params map[string]interface{}) (string, error) {
+func (self *Route) Sql(params map[string]interface{}, version int) (string, error) {
 	var out bytes.Buffer
-	response, err := self.validate(params)
+	response, err := self.validate(params, version)
 	if err != nil {
 		return "", err
 	}

route_test.go

@@ -34,7 +34,7 @@ func TestRouteSql(t *testing.T) {
 	}
 	params := make(map[string]interface{})
 	params["id"] = 23
-	sql, err := route.Sql(params)
+	sql, err := route.Sql(params, 0)
 	if err != nil {
 		t.Errorf("Expected not to get error, but got: %v", err)
 	}