Some error handling work

storage/error.go

@@ -4,6 +4,6 @@ import "github.com/sirupsen/logrus"
 
 func handleErr(err error) {
 	if err != nil {
-		logrus.WithError(err).Fatal("Error during database operation!")
+		logrus.WithError(err).Error("Error during database operation!")
 	}
 }

storage/log.go

@@ -81,6 +81,9 @@ func (database *Database) GetLogs(since int64, level LogLevel) *[]LogEntry {
 	rows, err := db.Query("SELECT * FROM log_entry WHERE timestamp > $1 AND level=$2",
 		since, level)
 	handleErr(err)
+	if err != nil {
+		return nil
+	}
 
 	for rows.Next() {
 

storage/monitoring.go

@@ -36,11 +36,17 @@ func (database *Database) MakeProjectSnapshots() {
 			   extract(epoch from now() at time zone 'utc')
 		FROM project`)
 	handleErr(err)
+	if err != nil {
+		return
+	}
 	inserted, _ := insertRes.RowsAffected()
 
 	res, err := db.Exec(`DELETE FROM project_monitoring_snapshot WHERE timestamp < $1`,
 		int64(time.Now().Unix())-int64(config.Cfg.MonitoringHistory.Seconds()))
 	handleErr(err)
+	if err != nil {
+		return
+	}
 	deleted, _ := res.RowsAffected()
 
 	logrus.WithFields(logrus.Fields{
@@ -60,6 +66,9 @@ func (database *Database) GetMonitoringSnapshotsBetween(pid int64, from int, to
 		worker_access_count, awaiting_verification_task_count, timestamp FROM project_monitoring_snapshot 
 		WHERE project=$1 AND timestamp BETWEEN $2 AND $3 ORDER BY TIMESTAMP DESC `, pid, from, to)
 	handleErr(err)
+	if err != nil {
+		return
+	}
 
 	for rows.Next() {
 
@@ -91,6 +100,9 @@ func (database *Database) GetNMonitoringSnapshots(pid int64, count int) (ss *[]P
 		worker_access_count, awaiting_verification_task_count, timestamp FROM project_monitoring_snapshot 
 		WHERE project=$1 ORDER BY TIMESTAMP DESC LIMIT $2`, pid, count)
 	handleErr(err)
+	if err != nil {
+		return
+	}
 
 	for rows.Next() {
 		s := ProjectMonitoringSnapshot{}

storage/project.go

@@ -168,6 +168,9 @@ func (database Database) GetAllProjects(managerId int64) *[]Project {
 		ORDER BY name`, managerId)
 	}
 	handleErr(err)
+	if err != nil {
+		return nil
+	}
 
 	for rows.Next() {
 		p := Project{}