add check

babylonlabs-io · Nov 26, 2024 · 90de0b9 · 90de0b9
1 parent e56d33c
commit 90de0b9
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/internal/db/delegation.go b/internal/db/delegation.go
@@ -42,6 +42,10 @@ func (db *Database) UpdateBTCDelegationState(
 	newState types.DelegationState,
 	newSubState *types.DelegationSubState,
 ) error {
+	if len(qualifiedPreviousStates) == 0 {
+		return fmt.Errorf("qualified previous states array cannot be empty")
+	}
+
 	qualifiedStateStrs := make([]string, len(qualifiedPreviousStates))
 	for i, state := range qualifiedPreviousStates {
 		qualifiedStateStrs[i] = state.String()