Rudimentary creating of nodes

node.go

@@ -165,3 +165,24 @@ func UpdateNode(nodeID int, data []byte) (err error) {
 	_, err = db.Exec(`UPDATE public.node SET data=$2 WHERE id=$1`, nodeID, data)
 	return
 }
+
+func CreateNode(parentNodeID, typeID int, name string) (err error) {
+	j, _ := json.Marshal(struct { Name string }{name})
+
+	row := db.QueryRow(`
+		INSERT INTO node(type_id, name, data)
+		VALUES($1, $2, $3::jsonb)
+		RETURNING id
+	`,
+		typeID, name, j)
+
+	var id int
+	err = row.Scan(&id)
+	if err != nil {
+		return
+	}
+
+	_, err = db.Exec(`INSERT INTO connection("parent", "child") VALUES($1, $2)`, parentNodeID, id)
+
+	return
+}