Complete support for cron pipeline triggering

database/func.go

@@ -705,13 +705,49 @@ WHERE pipeline_id=$1;`
 	return crons, nil
 }
 
-func (db *Database) AddCronForPipeline(pipelineId uuid.UUID, cron string, pattern string) error {
+func (db *Database) GetCronById(id uuid.UUID) (Cron, error) {
+
+	query := `
+SELECT cron, pipeline_id, pattern
+FROM crons
+WHERE id=$1;`
+
+	cron := Cron{
+		Id: id,
+	}
+
+	var pipelineIdStr string
+
+	err := db.Conn.QueryRow(context.Background(), query, id).Scan(&cron.Cron, &pipelineIdStr, &cron.Pattern)
+	if err != nil {
+		return cron, fmt.Errorf("Could not query database for cron with id %v: %w", id.String(), err)
+	}
+
+	cron.PipelineId, err = uuid.Parse(pipelineIdStr)
+	return cron, err
+}
+
+func (db *Database) AddCronForPipeline(pipelineId uuid.UUID, cronStr string, pattern string) (Cron, error) {
 	query := `
 INSERT INTO crons (id, pipeline_id, cron, pattern)
-VALUES (uuid_generate_v4(), $1, $2, $3);`
+VALUES (uuid_generate_v4(), $1, $2, $3)
+RETURNING id;`
 
-	_, err := db.Conn.Exec(context.Background(), query, pipelineId, cron, pattern)
-	return err
+	cron := Cron{
+		PipelineId: pipelineId,
+		Cron:       cronStr,
+		Pattern:    pattern,
+	}
+
+	var idStr string
+
+	err := db.Conn.QueryRow(context.Background(), query, pipelineId, cronStr, pattern).Scan(&idStr)
+	if err != nil {
+		return cron, fmt.Errorf("Could not create cron: %w", err)
+	}
+
+	cron.Id, err = uuid.Parse(idStr)
+	return cron, err
 }
 
 func (db *Database) RemoveCronForPipeline(cronId uuid.UUID) error {

database/types.go

@@ -81,7 +81,8 @@ type Runner struct {
 }
 
 type Cron struct {
-	Id      uuid.UUID
-	Cron    string
-	Pattern string
+	Id         uuid.UUID
+	PipelineId uuid.UUID
+	Cron       string
+	Pattern    string
 }