update the object stored for one workflow with user input

models/mxgraph.go

@@ -2,6 +2,7 @@ package models
 
 import (
 	"encoding/xml"
+	"strconv"
 )
 
 type MxGraphModel struct {
@@ -43,3 +44,18 @@ func (m *mxissue) Error() string {
 func newMxIssue(message string) error {
 	return &mxissue{message}
 }
+
+// mxCell inside object tags are create twice when unmarshalling
+// once as they appear in the xml inside the MxObject struct and once in the MxCell struct
+// so once retrieved from object we remove them from the root's MxCell list
+func (m *MxGraphModel) removeMxCell(id string){
+	int_id,_ := strconv.Atoi(id)
+	int_id = int_id + 1
+	cell_id := strconv.Itoa(int_id)
+
+	for i, cell := range(m.Root.MxCell){
+		if cell.ID == cell_id {
+			m.Root.MxCell = append(m.Root.MxCell[:i],m.Root.MxCell[i+1:]...)
+		}
+	}
+}