hub: add LIMIT to GetUpdatesAfter, API filter struct

2 files changed, 12 insertions, 3 deletions

diff --git a/src/hub/src/spreadspace.org/sfive/s5store.go b/src/hub/src/spreadspace.org/sfive/s5store.go
index efd459e..85a9a1f 100644
--- a/src/hub/src/spreadspace.org/sfive/s5store.go
+++ b/src/hub/src/spreadspace.org/sfive/s5store.go
@@ -116,7 +116,8 @@ func isEmptyFilter(filter *StatsFilter) bool {
 		filter.format == nil &&
 		filter.quality == nil &&
 		(filter.tagsAny == nil || len(filter.tagsAny) == 0) &&
-		filter.afterUpdateId == nil {
+		filter.afterUpdateId == nil &&
+		filter.limit == nil {
 		return true
 	}
 	return false
@@ -142,10 +143,12 @@ func getFilteredDataUpdateSelect(filter *StatsFilter) (string, map[string]interf
 		return baseQuery + ")", nil
 	}
 
-	query := baseQuery + " where"
+	query := baseQuery
 	parameters := make(map[string]interface{})
 	needsAnd := false
 
+	query += " WHERE"
+
 	if filter.start != nil {
 		query += insertAnd(&needsAnd)
 		query += " StartTime >= :filterstart"
@@ -164,6 +167,10 @@ func getFilteredDataUpdateSelect(filter *StatsFilter) (string, map[string]interf
 		parameters["afterUpdateId"] = *filter.afterUpdateId
 		needsAnd = true
 	}
+	if filter.limit != nil {
+		query += " LIMIT :limit"
+		parameters["limit"] = *filter.limit
+	}
 
 	// TODO other fields
 	query += ")"
@@ -387,7 +394,8 @@ var (
 )
 
 func (s sqliteStore) GetUpdatesAfter(id int) (res []StatisticsData, err error) {
-	sourceSql, parameters := getFilteredDataUpdateSelect(&StatsFilter{afterUpdateId: &id})
+	limit := 200
+	sourceSql, parameters := getFilteredDataUpdateSelect(&StatsFilter{afterUpdateId: &id, limit: &limit})
 	sql := "SELECT " + updateColumnSelect + " FROM " + sourceSql
 	updates, err := s.db.Select(dataUpdateQueryResult{}, sql, parameters)
 	s5tl.Printf("sql: %s", sql)
diff --git a/src/hub/src/spreadspace.org/sfive/s5typesApi.go b/src/hub/src/spreadspace.org/sfive/s5typesApi.go
index bc32eb9..c02e5b2 100644
--- a/src/hub/src/spreadspace.org/sfive/s5typesApi.go
+++ b/src/hub/src/spreadspace.org/sfive/s5typesApi.go
@@ -64,6 +64,7 @@ type StatsFilter struct {
 	quality       *string
 	tagsAny       []string
 	afterUpdateId *int
+	limit         *int
 }
 
 func (self *StatisticsData) CopyFromSourceId(id *SourceId) {