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5 changes: 3 additions & 2 deletions ui/src/context/AnnotationStore.ts
Original file line number Diff line number Diff line change
Expand Up @@ -12,15 +12,16 @@ export interface TokenId {
export class RelationGroup {
constructor(public sourceIds: string[], public targetIds: string[], public label: Label) {}

// Delete a relation if it is no longer defined due to deleted source/target annotations
updateForAnnotationDeletion(a: Annotation): RelationGroup | undefined {
const sourceEmpty = this.sourceIds.length === 0;
const targetEmpty = this.targetIds.length === 0;

const newSourceIds = this.sourceIds.filter((id) => id !== a.id);
const newTargetIds = this.targetIds.filter((id) => id !== a.id);

const nowSourceEmpty = this.sourceIds.length === 0;
const nowTargetEmpty = this.targetIds.length === 0;
const nowSourceEmpty = newSourceIds.length === 0;
const nowTargetEmpty = newTargetIds.length === 0;

// Only target had any annotations, now it has none,
// so delete.
Expand Down