From d615d07f745b4c6201ee58474248216b8841a31f Mon Sep 17 00:00:00 2001
From: Maximilian Giller <m.giller@tu-bs.de>
Date: Wed, 27 Jul 2022 23:53:53 +0200
Subject: [PATCH] Prevents creation of duplicate links
---
src/editor/js/structures/graph/graph.ts | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/src/editor/js/structures/graph/graph.ts b/src/editor/js/structures/graph/graph.ts
index ebf36c2..b6d42d3 100644
--- a/src/editor/js/structures/graph/graph.ts
+++ b/src/editor/js/structures/graph/graph.ts
@@ -295,6 +295,21 @@ export class Graph extends ManagedData {
return true;
}
+ getLink(sourceId: number, targetId: number, directionSensitive = true): Link {
+ return this.links.find((l) => {
+ if (l.sourceId === sourceId && l.targetId === targetId) {
+ return true;
+ }
+
+ // Check other direction if allowed
+ if (!directionSensitive && (l.sourceId === targetId && l.targetId === sourceId)) {
+ return true;
+ }
+
+ return false;
+ });
+ }
+
getNode(id: number): Node {
return this.getElementWithId(this.nodes, id);
}
@@ -318,7 +333,7 @@ export class Graph extends ManagedData {
* @returns True, if successful.
*/
public addLink(link: Link): boolean {
- if (this.data.links.includes(link)) {
+ if (this.getLink(link.sourceId, link.targetId, false) !== undefined) {
return true; // Already exists in graph.
}
--
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